JPH06369A - Active carbon honeycomb and its utilization - Google Patents

Abstract

PURPOSE:To efficiently remove many malodor components or harmful components in a gas to be treated by making ventilation resistance small. CONSTITUTION:The gas to be treated containing malodor components or harmful components is treated by an iodine and/or inorganic iodide carrying active carbon honeycomb 6 provided in a gas flow passage 5 from a gas introducing opening 3 to a gas discharge opening 4. The gas to be treated may be also treated by the iodine and/or inorganic iodide carrying active carbon honeycomb and an acid carrying active carbon honeycomb. A fan 8 may be provided on the down stream side of the gas flow passage 5. The fan 8 may be operated by linking to the detection of malodor components or harmful components by a sensor or to a timer controlling the working time of a motor. As a result, various malodor components or harmful components such as ammonia and sulfur containing compounds the efficiently removed.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a novel activated carbon honeycomb useful for removing odorous components and harmful components and its use. More specifically, containers, cars, hospitals,
Nursing homes, meeting rooms, offices, homes, hotels, restaurants,
Karaoke box, animal breeding room, pet shop, refrigerator, refrigerating room, carrier case for plants and pets, getter box, closet, storeroom, cupboard, trash handling room, trash box, garbage processing equipment (composting equipment) The present invention relates to an activated carbon honeycomb that can be used for adsorption and removal of odorous components and harmful components generated from a toilet or the like, a gas treatment method and a gas treatment device using the activated carbon honeycomb. In particular, it is useful for a deodorizing device and a deodorizing method for a toilet bowl, a refrigerator, etc., a freshness maintaining device and a freshness maintaining method for plants and fruits.

[0002]

2. Description of the Related Art Conventionally, there has been known a method and an apparatus for circulating a gas containing an odorous component into a packed bed of granular activated carbon, fibrous activated carbon or the like in order to remove an odorous component and a harmful component. This malodorous or harmful gas contains various odors such as hydrogen sulfide, sulfur-containing compounds such as mercaptans and sulfides, nitrogen compounds such as ammonia and amines, aldehydes, carboxylic acids, hydrocarbons and carbon monoxide. Contains ingredients and harmful ingredients. These odorous components and harmful components are usually present in the atmosphere at an extremely low concentration, and the activated carbon alone cannot selectively adsorb and remove all the odorous components and harmful components, and the removal rate and the removal capacity are very high. small.
Therefore, a large amount of activated carbon is required to adsorb and remove odorous components and harmful components. Further, since the activated carbon filled layer has a large ventilation resistance, it is not possible to smoothly remove odorous components and harmful components, and the electricity cost for ventilation by the air blowing means increases.
It is also troublesome to replace the deteriorated activated carbon.

In order to adsorb and remove odorous components that are difficult to deodorize with activated carbon, Japanese Patent Laid-Open No. 62-262742 discloses that
A chemical-supporting activated carbon honeycomb in which a chemical is supported on an activated carbon honeycomb has been proposed. In this honeycomb, ammonia can be removed by supporting acidic chemicals such as sulfuric acid,
By supporting an alkaline chemical, hydrogen sulfide and the like can be removed.

However, even in this chemical-supporting activated carbon honeycomb, the odorous components and harmful components that can be adsorbed and removed are limited by the type of the supported chemicals. Therefore, it is difficult to efficiently adsorb and remove the gas to be treated containing many odorous components and harmful components. Furthermore, when an alkaline chemical is loaded to remove sulfur-containing compounds such as hydrogen sulfide, the flash point is lowered. It is dangerous to use such an activated carbon honeycomb carrying an alkaline chemical in ordinary living and living fields. Moreover, since the activated carbon honeycomb is carbonaceous, the honeycomb is more likely to burn, which is a practical problem. On the other hand, when a flame retardant is added, the amount of adsorption per unit specific surface area decreases and the deodorizing efficiency decreases. In these honeycombs, in order to achieve a sufficient adsorption effect, it is necessary to support a large amount of chemicals on the activated carbon honeycomb.

Japanese Patent Publication No. 62-9377 discloses a deodorizing agent in which an oxide of iodine and / or an oxo acid of iodine is supported on activated carbon. However, this deodorant
Since it is granular, the ventilation resistance at the time of deodorization is large and the gas to be treated cannot be smoothly treated. Further, it is not easy to handle the deodorant, for example, to replace the deteriorated deodorant.

[0006]

Therefore, an object of the present invention is to provide sulfur-containing compounds such as hydrogen sulfide, mercaptans and sulfides, monomethylamine, dimethylamine,
A new activated carbon honeycomb for efficiently removing amines such as trimethylamine and aldehydes such as formalin and acetaldehyde is provided, and an activated carbon honeycomb that can be applied to fields that cannot be applied by conventional techniques is provided. Further, it is possible to efficiently remove odorous components and harmful components even if the gas to be treated contains a large number of odorous components and harmful components, and to provide an activated carbon honeycomb having small ventilation resistance and a gas treatment method using this honeycomb. is there.

Another object of the present invention is a refrigerator, a shoe box,
It is an object of the present invention to provide a gas treatment method for treating a gas to be treated in a closed space such as a carrier case and a box for accommodating plants and fruits to maintain the freshness of plants and fruits.

Still another object of the present invention is to efficiently remove odorous and harmful components even in a gas to be treated containing a large number of odorous and harmful components, and also to reduce the ventilation resistance and make the honeycomb one-touch type. It is to provide a gas processing device that can be replaced.

Another object of the present invention is to provide a gas treatment device capable of efficiently treating a gas to be treated even in a closed space.

[0010]

In order to achieve the above-mentioned object, the present inventor has
As a result of diligent studies, it was found that an activated carbon honeycomb carrying iodine or / and an inorganic iodide has a high adsorptive removal ability for various odorous components and harmful components, and completed the present invention.

That is, the present invention provides an activated carbon honeycomb carrying iodine or / and an inorganic iodide (hereinafter, simply referred to as iodine-supporting activated carbon honeycomb unless otherwise specified).

The present invention also provides a gas treatment method for treating a gas to be treated containing an odorous component and a harmful component with an iodine-supporting activated carbon honeycomb.

Furthermore, the present invention provides a gas treatment apparatus in which an iodine-supporting activated carbon honeycomb is provided in the gas flow path from the gas introduction port of the gas to be treated to the gas discharge port.

The present invention will be described below in detail with reference to the accompanying drawings as needed.

The iodine-supporting activated carbon honeycomb is obtained by supporting iodine and / or inorganic iodide on a normal activated carbon honeycomb. As the activated carbon honeycomb, one having an activated carbon content of about 30% or more can be used. The activated carbon honeycomb may contain various conventional binders.

The BET specific surface area of the activated carbon honeycomb is usually 200 m ² / g or more, preferably 400 m ² / g or more, particularly preferably 500 m ² / g or more. When the activated carbon honeycomb having such a specific surface area is used, the adsorption capacity can be increased. The number of cells of the activated carbon honeycomb is 10 to 1500 cells / in. ² , preferably 20 to 1
000 / in. ² , more preferably 25 to 750 pieces / in. It is about ² . When the activated carbon honeycomb having such a number of cells is used, the ventilation resistance can be reduced without lowering the adsorption capacity. The activated carbon honeycomb can be used in a single as a single layer and in multiple honeycombs as multiple layers. The thickness of the activated carbon honeycomb can be selected within a range that does not reduce the deodorizing treatment efficiency, and is, for example, 5 mm or more per layer, preferably 7.5 mm or more (for example, about 7.5 to 100 mm), and more preferably 10 mm or more (for example, 10 mm or more). ~ 3
0 mm).

Inorganic iodides include I ₂ O ₅ , NH ₄ I,
Metal iodides and the like are included. Examples of the metal iodide include LiI, NaI, NaIO ₃ , KI, and KI.
_3, KIO _3, RbI, alkali metal iodide such as _{CsI; CaI 2, SrI 2,} BaI 2, iodide alkaline earth metals such as MgI _2; CuI, CuI _2, of the Periodic Table of the Elements group Ib metals such as AgI Iodide; element such as ZnI ₂ Group IIb metal iodide; such as AlI ₃ Element periodic table Group III metal iodide; CrI ₃ and other element Periodic Group VI metal iodide; MnI ₂ and other elements Iodides of Group VII metals of the Periodic Table; iodides of elements of Group VIII metals of the Periodic Table of the Elements such as CoI ₂ and NiI ₂ .
Preferred inorganic iodide, NH ₄ I, KIO _3, an alkali metal iodide, and the like _{CoI 2, NiI 2, ZnI 2} . Particularly preferred inorganic iodides include alkali metal iodides, especially potassium iodide. One type or two or more types of iodine and inorganic iodide can be used.

Supporting iodine and / or inorganic iodide on the activated carbon honeycomb can be carried out by a conventional method. For example, iodine and / or inorganic iodide may be dissolved or dispersed in an organic solvent such as water or alcohol, and may be carried by being sprayed, impregnated or dipped in the activated carbon honeycomb, and at the time of manufacturing the activated carbon honeycomb. Alternatively, iodine and / or inorganic iodide may be kneaded as a raw material in the form of a solution or fine powder, shaped, and supported. In the case of iodine,
Sprinkle the activated carbon honeycomb in a solid state, for example, 100
It may be supported by heating to ~ 115 ° C, and may be adsorbed on an activated carbon honeycomb in a liquid or gas state, or KI, N
Was dissolved in an aqueous solution such as H ₄ I, spraying may be supported by impregnation or dipping. Further, if necessary, iodine and / or inorganic iodide may be supported on the activated carbon honeycomb and then dried or fired.

The amount of iodine and / or inorganic iodide supported on the activated carbon honeycomb can be selected within a range that does not impair the deodorizing / adsorbing ability for odorous components and harmful components. %, Preferably 0.2 to
20% by weight, more preferably 0.4 to 10% by weight.

The iodine-supporting activated carbon honeycomb has a high deodorizing / adsorbing ability for various odorous components and harmful components. In particular,
Hydrogen sulfide, mercaptans such as methyl mercaptan,
Sulfur-containing compounds such as sulfides, amines such as monomethylamine, dimethylamine and trimethylamine, and aldehydes such as formalin and acetaldehyde exhibit extremely high deodorant and adsorption ability. In particular, it has excellent deodorant and adsorption ability for sulfur-containing compounds. Moreover, since it has a honeycomb structure, the ventilation resistance is small and it can be smoothly adsorbed and removed. Therefore, in the gas treatment method of the present invention, the gas to be treated containing the odorous component and the harmful component may be treated with at least one iodine-supporting activated carbon honeycomb.

Certain types of iodine-supporting activated carbon are used only in limited fields such as exhaust gas treatment equipment. However, it is extremely difficult to apply such activated carbon to daily life products because it is not easy to handle due to its pellet form. However, the iodine-supporting activated carbon honeycomb can be applied to inexpensive daily necessities and is easy to handle.
Therefore, the iodine activated carbon honeycomb can be used in a wide range of applications.

In order to remove odorous components and harmful components more efficiently, a group consisting of the iodine-supporting activated carbon honeycomb, the acid-supporting activated carbon honeycomb, the bromine-supporting activated carbon honeycomb, the platinum group element-supporting activated carbon honeycomb and the chemical-unsupported activated carbon honeycomb. It is preferable to treat the gas to be treated in combination with at least one activated carbon honeycomb selected from

By treating the gas by combining the iodine-supporting activated carbon honeycomb and the acid-supporting activated carbon honeycomb, for example, odorous and harmful components such as ammonia, amines, aldehydes and sulfur-containing compounds can be adsorbed and removed more efficiently.

The acid-supporting activated carbon honeycomb is obtained by supporting an acid on the activated carbon honeycomb. As an acid,
For example, phosphoric acid, sulfuric acid, inorganic acids such as nitric acid, oxalic acid,
Examples thereof include malonic acid, tartaric acid, succinic acid, citric acid, malic acid, glutaric acid, and other organic acids. Preferred acids include
For example, phosphoric acid, oxalic acid, malic acid and the like are included.
These acids can be used alone or in combination of two or more.

Further preferred acids include phosphoric acid.
Examples of the phosphoric acid include orthophosphoric acid, metaphosphoric acid,
Examples thereof include polyphosphoric acid (chain polyphosphoric acid such as pyrophosphoric acid, cyclic polyphosphoric acid such as trimetaphosphoric acid and tetrametaphosphoric acid, and infinite chain metaphosphoric acid). Preferred phosphoric acids include orthophosphoric acid. Phosphoric acid may be used alone or in combination of two or more.

The acid can be supported on the activated carbon honeycomb by a conventional method. For example, the acid may be dispersed, impregnated or immersed in the activated carbon honeycomb in the form of an aqueous solution or dispersion to carry the acid, and when producing the activated carbon honeycomb, the acid alone or the aqueous acid solution or the dispersion is kneaded with the raw material. Then, it may be molded and supported. Further, if necessary, the activated carbon honeycomb may be loaded with an acid and then dried or fired.

The amount of acid supported on the activated carbon honeycomb is, for example, 1 to 60% by weight, preferably 2 to 50% by weight, more preferably 5 to 40% by weight.

When the gas to be treated contains lower unsaturated hydrocarbons such as ethylene and acetylene, the iodine-supported activated carbon honeycomb and the bromine-supported activated carbon honeycomb or the platinum group element-supported activated carbon honeycomb are used in combination. It is valid. It is known that plants and fruits produce lower unsaturated hydrocarbons such as ethylene and reduce the freshness of plants and fruits and adjacent plants and fruits in an enclosed space. In this case, the iodine-supporting activated carbon honeycomb and the bromine-supporting activated carbon honeycomb or the platinum group element-supporting activated carbon honeycomb are treated in combination to remove odorous components and harmful components and lower unsaturated hydrocarbons in the gas by adsorption. , Can preserve the freshness of plants and fruits. The iodine-supporting activated carbon honeycomb is preferably used in combination with the platinum group element-supporting activated carbon honeycomb.

The bromine-supported activated carbon honeycomb is obtained by spraying, impregnating, and immersing liquid bromine on the activated carbon honeycomb, or by bringing gaseous bromine into contact with the activated carbon honeycomb. The amount of bromine supported on the activated carbon honeycomb is 1 to 30% by weight, preferably 2 to 20% by weight, particularly preferably 5 to
It is 15% by weight.

When the gas to be treated contains nitrogen oxides, carbon monoxide, hydrogen cyanide, lower aldehydes, lower unsaturated hydrocarbons (eg ethylene, propylene, etc.), iodine-supported activated carbon honeycomb and platinum are used. It is effective to use in combination with a group element-supporting activated carbon honeycomb.

Examples of the platinum group element include platinum, iridium, osmium, palladium, rhodium, ruthenium, and gold. The amount of the platinum group element compound supported on the activated carbon honeycomb is 0.1 to 2 as the platinum group element.
0% by weight, preferably 0.25 to 15% by weight, particularly preferably 0.5 to 10% by weight.

The platinum group element-supporting activated carbon honeycomb is obtained by spraying, impregnating or immersing an aqueous solution of a platinum group element compound such as hydrochloric acid, hydrogen iodide, hydrogen bromide, hydrofluoric acid, nitric acid, sulfuric acid or phosphoric acid on the activated carbon honeycomb. It can also be obtained by kneading with the raw material in the form of an aqueous acid solution of these platinum group element compounds when the activated carbon honeycomb is manufactured. You may dry or bake as needed. The temperature at that time is 40 to 500 ° C., preferably 50 to 400.
C., particularly preferably 60 to 350.degree. C., and the atmosphere at that time may be any of reduced pressure, normal pressure and increased pressure, and it can be carried out in the presence of air, nitrogen, carbon dioxide gas, combustion gas and the like.

As a supporting chemical, a compound of a platinum group element,
Furthermore, Ti, V, Cr, Mn, Fe, Co, Ni, C
By simultaneously using at least one of u and Ag, the gas treatment effect is further improved. In this case as well, it can be manufactured by the same method as the chemical-supporting activated carbon honeycomb in which only the platinum group element compound is supported. In this case, the addition ratio (metal / element weight ratio) of these metal compounds to the platinum group element compound is 0.1 to 500, preferably 0.5 to 2
50, particularly preferably 1-100. Moreover, you may dry or bake as needed. In that case, the temperature is 4
0 to 500 ° C., preferably 50 to 400 ° C., particularly preferably 60 to 350 ° C., and the atmosphere at that time is under reduced pressure,
It may be under normal pressure or under pressure, and can be carried out in the presence of air, nitrogen, carbon dioxide gas, combustion gas and the like. When treating tobacco smoke, carbon monoxide, hydrogen cyanide and ethylene can be removed by using an active carbon honeycomb carrying a platinum group element compound alone or both of the platinum group compound and the above metal compound.

These activated carbon honeycombs can be used in various combinations in combination as long as they include iodine-supporting activated carbon honeycombs. By using a plurality of activated carbon honeycombs having different adsorption characteristics for odorous components, it is possible to efficiently remove even various types of odorous components and toxic components.

The iodine-supporting activated carbon honeycomb exhibits remarkably higher deodorizing / adsorbing ability with respect to odorous components and harmful components as compared with ordinary activated carbon honeycombs. Therefore, the treatment order of the gas to be treated by the iodine-supporting activated carbon honeycomb and another activated carbon honeycomb such as the acid-supporting activated carbon honeycomb is not particularly limited, and the treatment gas may be pretreated by the iodine-supporting activated carbon honeycomb. The gas to be treated may be previously treated with a honeycomb or the like.

A preferred method is a method in which the gas to be treated is treated with an iodine-supporting activated carbon honeycomb and then treated with an acid-supporting activated carbon honeycomb. This method is preferable for deodorization such as for toilets.

Another preferable method is a method in which the gas to be treated is first treated with an iodine-supporting activated carbon honeycomb and then with a platinum group element-supporting activated carbon honeycomb or a bromine-supporting activated carbon honeycomb. Of these, a platinum group element-supporting activated carbon honeycomb is more preferably used. This method is preferable for keeping the freshness of plants and fruits in a closed system.

Further, the treated gas is sequentially treated with an iodine-supporting activated carbon honeycomb, an acid-supporting activated carbon honeycomb, and a bromine-supporting activated carbon honeycomb or a platinum group element-supporting activated carbon honeycomb,
Refrigerators and other methods of maintaining the freshness of plants and fruits in cases and boxes are also useful. In these cases, at least one iodine-supporting activated carbon honeycomb and at least one acid-supporting activated carbon honeycomb may be used in the gas adsorption / removal process.

Further, the iodine-supporting activated carbon honeycomb may be used in combination with the above chemical-unsupported activated carbon honeycomb.
Also in this case, the adsorption removal effect can be further enhanced. In particular, when the gas to be treated contains odorous or harmful components such as hydrocarbons and carboxylic acids, it is effective to install the activated carbon honeycomb on the upstream side of the gas flow path with respect to the iodine-supported activated carbon honeycomb. For the type of gas to be treated, especially for the gas containing sulfur-containing compound,
At least one iodine-supporting activated carbon honeycomb and at least one activated carbon honeycomb may be used. This method is preferable for deodorization for animal breeding rooms and compost.

When the gas to be treated contains fine solid particles such as dust, tar, nicotine, etc., a dust removal filter should be installed upstream of the activated carbon honeycomb or iodine-supported activated carbon honeycomb in the gas flow path. preferable. The type of dust removing filter is not particularly limited, but examples thereof include an electric dust collecting type filter, a charging filter, and a non-woven fabric filter, and a filter that is easily exchanged is particularly preferable.

In treating a gas to be treated containing an odorous component and a harmful component, a dust filter, activated carbon honeycomb, bromine-supported activated carbon honeycomb, platinum group element-supported activated carbon honeycomb, acid The target gas may be treated by appropriately combining the supported activated carbon honeycomb and the iodine-supported activated carbon honeycomb.

The temperature of the gas to be treated may be in the range where the adsorption capacity of the honeycomb is not impaired, and it is -50 to 100.
℃, preferably -30 to 80 ℃, more preferably -2
It is about 0 to 65 ° C.

When a gas to be treated containing an odorous component or a harmful component is brought into contact with the honeycomb, the linear velocity of the gas to be treated is
For example, 1 to 200 cm / sec, preferably 2 to 150 c
m / sec, more preferably about 5 to 100 cm / sec. The space velocity of the gas to be processed is, for example, 20 to 5
0,000 hr ^-1 , preferably 50 to 250,000
hr ⁻¹ , more preferably 100 to 150,000 hr ⁻¹
It is a degree.

The iodine-supporting activated carbon honeycomb of the present invention can be used in various gas treatment apparatuses for adsorbing and removing odorous components and harmful components. FIG. 1 is a schematic cross-sectional view showing an example of the gas treatment device of the present invention, and FIG. 2 is a schematic diagram showing the relationship between the treatment space and the gas treatment device.

The gas processing apparatus 1 includes a casing 2 in which a gas inlet 3 and a gas outlet 4 of a gas to be treated are formed at both ends, and a gas from the gas inlet 3 of the casing 2 to the gas outlet 4. The flow path 5 is composed of an iodine-supporting activated carbon honeycomb 6 and an acid-supporting activated carbon honeycomb 7, and a fan 9 connected to a motor 8 as a driving means.

As shown in FIG. 2, when the apparatus 1 is placed in the processing space 10, the gas to be processed flows from the gas inlet 3 to the gas outlet 4 by the operation of the fan 9. In the distribution process, the gas to be treated is first treated by the iodine-supporting activated carbon honeycomb 6 to remove most of the odorous components and harmful components. Further, even if a small amount of ammonia or the like is present in the gas to be treated which has been treated by the iodine-supporting activated carbon honeycomb 6, these odorous components and harmful components are treated by the acid-supporting activated carbon honeycomb 7 and removed by adsorption. Further, the fan 9 is connected to the gas flow path 5
Is provided on the downstream side, in this example, between the acid-carrying activated carbon honeycomb 7 and the gas discharge port 4, it is possible to prevent dirt on the motor 8 and the fan 9, corrosion due to odorous components and harmful components, and it is high for a long time. The processing effect can be maintained.

The operation of the fan by the driving means may be carried out by a suitable switching means such as a manual switch, but it is preferably carried out automatically by a sensor such as an odor sensor. FIG. 3 is a block diagram showing the electrical configuration of the gas treatment device of the present invention. In this example, a deodorizing device is shown as the gas treatment device.

In the above description, the same or common elements are designated by the same reference numerals.

This deodorizing device is provided with an odor sensor 11 for detecting an odor component, and a motor 8 as a driving means for rotationally driving the fan 9 based on the detection signal of the sensor 11. That is, the comparison circuit 12 compares the detection value V of the odor sensor 11 with the reference value Vf set in the setting circuit. When the comparison result of the comparison circuit 12 is V> Vf, the drive circuit 13 determines that the motor 8 serving as drive means is to operate.
Drive signal to. The motor 8 rotationally drives the fan 9 to start the deodorizing process.

In such a deodorizing device, the motor 8 can be driven to rotate the fan 9 when an odorous component having a concentration exceeding a reference value, for example, a concentration that can be detected by the sense of smell is present. It is possible to efficiently perform deodorizing treatment with an activated carbon honeycomb or the like.

FIG. 4 is a schematic partially cutaway perspective view showing an example of a deodorizing device for a toilet, and FIG. 5 is a schematic perspective view of a toilet provided with the deodorizing device of FIG.

The deodorizing device 21 is provided with a gas introduction port 23 and a gas discharge port 24, and a hollow cylindrical casing 22 forming a gas flow path 25, and the casing 22 is provided on the gas introduction port 23 side. A damper 26, and an iodine-supporting activated carbon honeycomb 27 and an acid-supporting activated carbon honeycomb 28 that are sequentially arranged in the direction from the gas introduction port 23 side to the gas discharge port 24 side are provided. The acid-supporting activated carbon honeycomb 2
A motor 29 and a fan 30 are provided on the downstream side of 8, that is, on the discharge port 24 side. The damper 26 is provided in the gas passage 2 on the side of the gas introduction port 23 according to the operation of the fan 30.
Open and close 5. Further, in this example, the casing 22
The gas introduction port 23 side is bent into an L shape.

In order to allow the iodine-supporting activated carbon honeycomb 27 and the acid-supporting activated carbon honeycomb 28 to be installed and removed, the portions of the casing 22 corresponding to the iodine-supporting activated carbon honeycomb 27 and the acid-supporting activated carbon honeycomb 28 are formed so as to be hingedly openable and closable. Has been done.

Further, the gas discharge port 24 of the casing 22 is provided with a ventilation member 31 such as a mesh for preventing the fan 30 from being contaminated.

The deodorizing device 21 can have a gas inlet 23 inside the toilet 32 and a gas outlet 24 outside the toilet 32. That is, as shown in FIG.
Is composed of a toilet body 33, a toilet seat 34, and a cover 35, and a toilet seat box 36 is formed at the base of the toilet seat 34. The toilet seat 34 is provided with a convex portion 34a that can come into contact with the upper peripheral edge of the toilet body 33. A mounting portion 37 for mounting the deodorizing device 21 is formed on the rear portion of the toilet body 33, that is, on the side of the water tank (not shown), and the mounting portion 37 is hingedly connected to a lid body 38.
Can be opened and closed by. The mounting portion 37 is the toilet body 3
3 extends in an L-shape from the side opening, reaches the inner opening of the toilet body 33, and has a shape and size suitable for the deodorizing device 21. Therefore, the deodorizing device 21 can be attached / detached to / from the mounting portion 37 of the toilet body 33 by opening / closing the lid 38.

In the deodorizing device 21 as described above, the odorous components such as night soil odor in the toilet 32 are sucked by the fan 30 as the motor 29 is actuated, and are first passed through the damper 26 from the gas inlet 23 through the iodine-supporting activated carbon. It contacts the honeycomb 27, then contacts the acid-supporting activated carbon honeycomb 28, and is discharged from the gas discharge port 24. At that time, since the iodine-supporting activated carbon and the acid-supporting activated carbon have a honeycomb shape, the ventilation resistance is small, the gas flow can be made uniform, and the gas to be treated can be smoothly supplied to the iodine-supporting activated carbon honeycomb 27 and the acid-supporting activated carbon honeycomb 28. .

As described above, the iodine-carrying activated carbon honeycomb 27 and the acid-carrying activated carbon honeycomb 28 can remove the odorous components substantially completely, and can prevent the motor 29 and the fan 30 from being corroded. It can be maintained for a long time. In addition, since the fan 30 on the gas outlet side of the casing 22 sucks the air, even if there is a gap between the casing 22 and the honeycombs 27 and 28, or if the casing 22 has cracks or pinholes, the odor is not generated. The components can be reliably suctioned and processed, and the odorous components will not flow out of the device. Further, since the iodine-supporting activated carbon and the acid-supporting activated carbon are in a honeycomb shape, it is easy to replace each of the honeycombs 27 and 28, and by opening and closing the lid 38,
It is easy to attach and detach the deodorizing device 21 to and from the mounting portion 37 of the toilet body 33. Further, according to the operation of the motor 29 and the fan 30, the damper 26 opens the gas flow path 25 only when the motor 29 is operating and closes it at other times, so that the honeycomb-shaped activated carbon can be effectively and efficiently used. It can be used, and the decrease in adsorption capacity can be suppressed.

The casing only needs to have a suction port inside the toilet bowl and a discharge port outside the toilet bowl, and the suction port side does not need to be bent and can be formed in an appropriate shape. Further, the motor of the deodorizing device may be operated by inserting a plug into an outlet, or may be operated by an appropriate means such as a hand switch, but it is a sensor for detecting feces, urine, sitting or sitting. It is preferable to operate automatically by the above. Furthermore, since the odorous component remains in the toilet bowl 32 even after urination or urination, it is preferable to operate the motor 29 for a predetermined time with a timer or the like after urination or urination. Also, toilet seat 3
When the toilet seat cover 35 is laid down after being separated from the seat 4, the odorous components can be prevented from leaking out of the toilet bowl 32, and the deodorizing effect is further enhanced.

FIG. 6 is a schematic partially cutaway perspective view showing another embodiment of the present invention, and FIG. 7 is a schematic perspective view of a toilet bowl equipped with the deodorizing device of FIG.

The deodorizing device 41 is made by paying attention to the fact that the convex portion 34a on the lower surface of the toilet seat 34 forms a space between the upper end surface of the toilet body 33 and the lower surface of the toilet seat 34. That is, the gas introduction port 43 of the casing 42
The side is formed with a thickness corresponding to the above space,
It is bent into an L shape and can be placed on the toilet body 33.

Further, an iodine-supporting activated carbon honeycomb 47 and an acid-supporting activated carbon honeycomb 48 are provided in the gas passage 45 extending from the gas inlet 43 to the gas outlet 44 of the casing 42. The portions of the casing 42 corresponding to these honeycombs 47 and 48 can be opened and closed in a hinge manner, respectively, in the same manner as described above in order to facilitate replacement of the honeycombs 47 and 48.

An automatic switch 52 for detecting the seating on the toilet seat 34 and operating the motor 49, such as an optical sensor, a pressure switch, or a pressure sensor, at a location corresponding to the toilet seat 34 on the gas inlet port 43 side of the casing 42. A sensor, an odor sensor, a temperature sensor, etc. are provided. Further, a sirocco fan 50 that is rotated by the operation of a motor 49 is attached to the casing 42 on the downstream side of the honeycombs 47 and 48, and a gas exhaust port 44 is provided with a ventilable protection member 51.
Is provided.

On the other hand, even after stool or urine, the odorous component remains in the toilet bowl 32. Therefore, since the fan 50 is operated by the motor 49 for a predetermined time even after the seat is separated from the toilet seat 34, when the seat is separated from the toilet seat 34, the automatic switch 52 is operated.
The timer 53 incorporated in the casing 42 is activated based on the separation detection signal of (1) to control the operating time of the motor 49.

In order to dispose the deodorizing device in a stable manner, a recess or the like may be formed in a portion of the lower surface of the casing 42 corresponding to the peripheral portion of the toilet body 33. An engaging portion that engages with the toilet body 33 may be provided on the 43 side.

The set time of the timer 53 depends on the motor 4
Although it can be appropriately selected according to the ability of the seat 9, it is preferable to operate the motor 49 for at least 10 seconds after the seat is separated from the toilet seat 34.

In the present invention, the types of sensors are
It is not particularly limited as long as it can detect urine, sitting, and sitting, but an optical sensor such as an infrared sensor is preferable. FIG. 8 is a schematic partially cutaway perspective view showing still another example of the deodorizing device of the present invention, and FIG. 9 is a schematic perspective view of a toilet provided with the deodorizing device of FIG.

In this example, sitting on the toilet seat 34 and the toilet seat 3
An optical sensor 61 for detecting the separation from the vehicle 4 is provided on the upper side portion of the deodorizing device 41. The sensing direction of the optical sensor 61 is set so as to be able to detect sitting or leaving, for example, diagonally upward from the outside of the toilet 32 toward the inside. This deodorizing device functions similarly to the deodorizing device shown in FIG. 6 and FIG. 7 except that the sitting and leaving can be detected by the optical sensor 61 in a non-contact manner, and the action and effect thereof are basically the same. Is.

As described above, the deodorizing device for a toilet bowl includes a sensor for detecting seating on and a seat away from the toilet seat, a drive source for driving a fan based on the seating detection signal of the sensor, and the sensor. It is preferable to include control means for controlling the operating time of the drive source based on the separation detection signal. FIG. 10 is a block diagram showing the electrical configuration of the deodorizing apparatus of the present invention.

This deodorizing device is equipped with a sensor 71 such as an optical sensor or a pressure sensor for detecting the seating on the seat 34 and the separation from the seat 34. The seating detection signal detected by the sensor 71 is given to the S terminal of the flip-flop 72 and also to the R terminal of the flip-flop 72 via the inverter 73. Sensor 7
When the seating is detected by 1, the detection signal becomes "1", the flip-flop 72 is set, and the output signal Q of the flip-flop 72 becomes "1". This output signal Q
This resets the timer 74. The drive circuit 75 is turned on by the output signal Q, and the drive signal is given to the motor 76. The motor 76 rotationally drives the fan 77,
The deodorizing process is started.

On the other hand, when the user separates from the toilet seat 34 after stool or urine, the detection signal from the sensor 71 becomes "0", the flip-flop 72 is reset, and the output signal Q bar of the flip-flop 72 is "1". Becomes The output signal Q bar “1” corresponds to the separation detection signal from the toilet seat 34. The output signal Q bar starts the operation of the timer 74, the driving circuit 75 is turned on, the driving signal is given to the motor 76, and the fan 77 is rotationally driven for a fixed time. This makes it possible to remove residual odorous components after stool or urine. When the set time set by the timer 74 has elapsed, the drive circuit 75 is turned off and the rotation of the motor 76 is stopped.

In such a device, the fan 77 can be rotationally driven by sitting on the toilet seat 34, and the timer 74 can be reset. In addition, the timer 74 is operated by moving away from the toilet seat 34, and the fan 77 can be rotationally driven for a certain period of time even after the stool or urine is used, so that deodorization can be efficiently performed.

FIG. 11 is a schematic perspective view showing another example of the deodorizing device of the present invention, and FIG. 12 is a schematic sectional view of a toilet provided with the deodorizing device of FIG.

The deodorizing device 81 of this example has a gas introduction port 83.
A casing 82 having a discharge port 84 and a gas flow passage 85 extending from the gas introduction port 83 to the discharge port 84 are provided with a one-touch removable cartridge 86. In the cartridge 86, the activated carbon honeycomb 8
7, an iodine-supporting activated carbon honeycomb 88 and an acid-supporting activated carbon honeycomb 89 are housed. In addition, the gas flow path 8
A fan 90, which is rotationally driven by a motor (not shown), is provided on the downstream side of 5.

The portion of the casing 82 from the gas inlet 83 to the mounting portion of the cartridge 86 is curved in a U-shaped cross section, and this curved portion can be mounted on the upper end peripheral portion of the toilet body 33. In addition, a mounting means that is detachable from the toilet body 33 is provided on the inner surface of the lower portion of the casing 82. In this example, the attachment means is the casing 8
Support member 91 attached to the inner surface of the lower part of 2 in a stretchable manner
And a suction cup 92 attached to the support member 91 and attachable to the side surface of the toilet body 33. In addition,
The support member 91 may be rotatable.

Further, a spacer 93 made of a cushioning member such as sponge or foamed plastic is attached to the inner surface of the upper portion of the curved portion of the casing 82. Spacer 93
Contacts the upper side surface of the toilet body 33. Therefore, when the curved portion of the casing 82 is attached to the peripheral portion of the toilet body 33, the deodorizing device 81 can be tightly and easily fitted and attached to the toilet body 33 by the elasticity of the spacer 93, and the attachment means can be provided. Thereby, the position of the deodorizing device 81 can be easily fixed. Moreover, due to the elasticity of the spacer 93, even if the width of the edge portion of the toilet body 33 is slightly different, it can be easily attached to any portion of the toilet body 33.

Then, on the upper part of the casing 82,
An optical sensor 94 for detecting the seating on the toilet seat 34 and the separation from the toilet seat 34 is located, and the honeycomb 8
A lamp 95 as an informing means is positioned to inform that the life of 7, 88, 89 has passed. Since the sensing direction of the optical sensor 94 is set obliquely upward from the outside to the inside of the toilet bowl 32, even if the deodorizing device 81 is attached to either the left or right side of the toilet body 33, the toilet seat 34 will not be exposed. Seating and separation from the toilet seat 34 can be reliably detected.

FIG. 13 is a schematic perspective view showing still another example of the deodorizing device of the present invention, and FIG. 14 is a schematic perspective view of a toilet provided with the deodorizing device of FIG. In this example, in order to facilitate the attachment of the deodorizing device to the toilet bowl, the above-mentioned FIGS.
Instead of the support member 91 and the suction cup 92 shown in FIG.
A cushioning member 96 that can come into contact with the side surface of 3 is attached so as to project. The deodorizing device only needs to be attachable to the toilet bowl, and its attaching means is not particularly limited.

The casing 82 of the deodorizing device 81
An opening (not shown) for a plug 97 is formed in the lower part of the plug for operating the motor, and the plug 97 is connected to a power source via a cord 98. The power source may be a DC power source such as a battery or a dry cell, or an AC power source. Further, in the case of an AC power source, an adapter 99 for converting AC to DC may be connected to the cord 98 as shown in the figure. Further, the adapter 99 can convert a high voltage into a low voltage. In this case, since the motor can be operated with a low voltage, the heat generation amount of the entire device such as the motor can be reduced, which is safe.

The deodorizing apparatus of the present invention preferably comprises an informing unit for informing the life of the honeycomb based on the rotation of the motor or the detection signal of the sensor.

FIG. 15 is a block diagram showing still another electrical configuration of the toilet deodorizing device of the present invention.

This deodorizing device has a sensor 71, a flip-flop 72, an inverter 73, a timer 74, a drive circuit 75 for detecting the seating on the toilet seat 34 and the seating away from the toilet seat 34, similarly to the configuration shown in FIG. A motor 76 and a fan 77 are provided. Therefore, when the user sits on the toilet seat 34, the fan 77 rotates and the timer 74 is reset. Also, when the user leaves the toilet seat 34, the timer 7
4 operates, and the fan 77 can be rotationally driven for a fixed time even after stool or urine.

The operating time and the rotation speed of the motor 76 are detected by the rotation detector 101 and given to the counter 102. The count value V of the counter 102 is compared with the reference value Vf by the comparison circuit 103. The reference value V
f is set corresponding to the life of the honeycomb based on the fact that the adsorption amount of the odorous component is substantially proportional to the adsorption treatment time, in other words, the operation time and the rotation speed of the motor 76.

The comparison result by the comparison circuit 103 is V>
In the case of Vf, the drive circuit 104 gives a drive signal to the notification means 105 to notify the replacement of the honeycomb or the cartridge 86. Therefore, based on the operating time and the number of rotations of the motor 76, it is notified that the honeycomb has reached the end of its life.
It can be notified by 05. The notification means 105 may be the lamp 95 or the buzzer described above.

FIG. 16 is a block diagram showing another electrical configuration of the deodorizing device of the present invention.

Similar to the device shown in FIG. 15, this device has a sensor 71 for detecting seating on the toilet seat 34 and separation from the toilet seat 34, an RS flip-flop 72, an inverter 73, a timer 74, a drive circuit 75, A motor 76 and a fan 77 are provided. Therefore, the rotation of the fan 77 by sitting on the toilet seat 34 and the timer 7 by moving away from the seat 7
The odor component can be deodorized by the operation of 4 and the rotation of the fan 77 thereafter.

Further, in order to inform the life of the honeycomb, an odor sensor 111 for detecting an odor component is provided on the gas outlet side of the deodorizing device. That is, the odor sensor 111
The detected value V by is the reference value Vf set in the setting circuit.
Are compared by the comparison circuit 112. The reference value Vf is
For example, it can be set corresponding to the concentration of the odorous component that can be detected by the sense of smell.

When the detected value V exceeds the reference value Vf (V> Vf), the output signal "1" is given to the AND circuit 113. Further, when the sensor 71 detects seating, a detection signal “1” is also given to the AND circuit 113. Therefore, based on the detection signal of the sensor 71, the fan 7
When 7 is rotating and V> Vf, AND
The drive circuit 114 is turned on by the circuit 113, and the notification means 115 can notify that the honeycomb has reached the end of its life.

On the other hand, the sensor 71 detects seating, and A
Even if the detection signal given to the ND circuit 113 is "1", the signal given to the AND circuit 113 becomes "0" when the detection value V by the odor sensor 111 is equal to or less than the reference value Vf. Therefore, the drive circuit 114 is turned off and the notification means 115 does not operate.

According to such a device, as described above,
The odor sensor 111 detects the concentration of the odorous component in the gas after the deodorization processing by the rotation of the fan 77 without depending on the operating time or the rotation speed of the motor 76, and when the detected value V exceeds the reference value Vf, the notification is given. The means 115 can be activated. Therefore, the life of the honeycomb can be accurately notified.

Incidentally, the life of the honeycomb can be notified in a general deodorizing device as shown in FIG. In this case, the motor 9 shown in FIG.
The rotation detector 101, the counter 102, and the comparison circuit 1 shown in FIG.
03, the drive circuit 104, and the notification means 105 may be connected. In addition, the device shown in FIG. 3 and the odor sensor 111, the comparison circuit 112, and the AND circuit 1 shown in FIG.
13, the drive circuit 114 and the notification means 115 may be combined. That is, the output signal from the odor sensor 11 shown in FIG. 3 may be given to the AND circuit 113 shown in FIG.

In the deodorizing device, it is preferable that a gas introducing port and a gas discharging port are formed in a portion of the casing in which the suction direction and the discharge direction of the gas to be treated are different. In such a deodorizing device, the inflow direction and the outflow direction of the gas to be processed are different. Therefore, even if the deodorizing device is placed on the wall or corner of the room, the gas to be processed can be sucked in and exhausted smoothly. You can Therefore, the deodorizing efficiency is not impaired, and the deodorizing treatment space can be effectively used.

FIG. 17 is a schematic sectional perspective view showing still another embodiment of the present invention, and FIG. 18 is a sectional view of the apparatus shown in FIG. In this example, a mounting type deodorizing device mounted on a floor surface or a table in a room is shown.

A gas introduction port 122 that is open is formed on the front surface of the casing 121 of the deodorizing device, and a gas discharge port 123 is formed on the upper inclined surface. A charging filter 125 attached to a frame 124 is detachably attached to the gas introduction port 122.

As the charging filter 125, a non-woven fabric made of a fiber having a high polarizability, for example, a non-woven fabric made of an electret fiber made of polypropylene or the like, which is applied with a permanent charge and retains a permanent polarization, in order to enhance the efficiency of collecting particles [ Sumitomo 3M Co., Ltd. Filterlet ^TM ] can be used. The weight per unit area of the charging filter 125 can be selected within a range that does not significantly increase the pressure loss.
500 g / m ^2, preferably 100 to 300 g / m ² approximately.

Inside the charging filter 125, the iodine-supporting activated carbon honeycomb 127 and the acid-supporting activated carbon honeycomb 128 attached to the lattice-shaped frame 126 are detachably mounted.

Inside the casing 121, there are guide members 129a, which extend from the gas outlet 123 and form a flow path.
129b is formed in the lateral direction. This guide member 1
A cross-flow fan 130 or a sirocco fan for discharging the gas sucked from the gas inlet 122 from the gas outlet 123 is disposed between 29a and 129b. The fan 130 is rotationally driven by a motor (not shown) as a driving unit. Further, the gas discharge port 123 has a control member 131 including a plurality of plate fins for controlling the exhaust direction.
Is rotatably provided.

A controller 133 for controlling the rotation speed of the cross flow fan 130 is provided on the side surface of the casing 121, and the controller 133 is connected to a power source via a cord 132.

In the deodorizing apparatus shown in FIGS. 17 and 18, the dust in the gas to be treated can be removed and the gas to be treated can be deodorized by the operation of the fan 130, as described above. Further, since the gas inflow direction and the gas outflow direction are different, the gas can be smoothly sucked and exhausted even if the deodorizing device is arranged on the wall portion or the corner portion in the room. Therefore, the deodorizing efficiency is not impaired and the deodorizing treatment space can be effectively utilized.

FIG. 19 is a schematic sectional view showing still another embodiment of the present invention. In this example, an indoor wall-mounted deodorizing device is shown.

A gas introduction port 142 having a plurality of slits is formed in the upper part of the front surface of the casing 141 of the deodorizing device.
And a gas discharge port 143 that can be opened and closed by a louver 144 is formed in the lower part. The gas inlet 14
A charging filter 145 attached to a lattice-shaped frame is detachably attached to the inside of the unit 2. In addition, the charging filter 1
Inside the 45, an iodine-supporting activated carbon honeycomb 146 and an acid-supporting activated carbon honeycomb 147 attached to a frame are detachably mounted.

A guide member 148 forming a flow path is extended from the gas discharge port 143 and a cross flow fan 149 is arranged in the lower portion of the casing 141.

The casing 141 is provided with a lamp 150 for displaying the operating state of the fan, the operating state of a timer for controlling the operating time of the fan, and the like. The operation of the fan 149 and the set time of the timer can be controlled by the remote controller.
4 rotates in conjunction with the operation of the fan 149, and the angle of the louver 144 can be adjusted by the controller.

The deodorizing device shown in FIG. 19 can remove dust and the like in the gas flowing into the deodorizing device as well as the odorous components and deodorize, as in the deodorizing device shown in FIGS. 17 and 18. Further, since the gas inflow / outflow direction is in front of the deodorizing device, the gas can be smoothly sucked / exhausted even when mounted on the upper wall of the room, etc., and the deodorizing efficiency is not impaired. .

In the indoor deodorizing device shown in FIGS. 17 to 19, the charging filter may be held in a replaceable manner between the frame body and the iodine-carrying activated carbon honeycomb without being integrally attached to the frame body. . Further, the iodine-carrying activated carbon honeycomb and the acid-carrying activated carbon honeycomb may be replaceably mounted in the casing at appropriate places, for example, the front surface, the lower portion or the side portion.

Further, the flow rate of the gas to be treated to the charging filter, the iodine-supporting activated carbon honeycomb and the acid-supporting activated carbon honeycomb can be appropriately selected, and is, for example, 0.2 to 1.5 m /
Second, preferably about 0.3 to 1.0 m / sec. The ventilation frequency can be selected according to the odor component concentration from the source, etc., and is usually 1 to 15 times / hr, preferably 4 to 8 times / h.
It is about r.

The deodorizing device of the present invention may be constituted by at least a gas passage extending from the gas inlet to the gas outlet, and an iodine-supporting activated carbon honeycomb provided in the gas passage. The supported activated carbon honeycomb is not always necessary. Also, contrary to the above device, in the gas flow path,
An acid-supporting activated carbon honeycomb and an iodine-supporting activated carbon honeycomb may be sequentially provided from the gas inlet to the gas outlet. Further, as long as the iodine-supporting activated carbon honeycomb is provided in the gas flow path, the iodine-supporting activated carbon honeycomb may or may not be used and may be appropriately combined with the dust filter and / or the activated carbon honeycomb.

In addition, an appropriate place of the casing forming the gas flow path, for example, the gas introduction port side may have a bellows shape in order to correspond to the size of the processing space.

In the deodorizing apparatus of the present invention, when the gas to be treated can be blown into the gas flow path from the outside, the fan is not necessary, but since the malodorous gas is circulated smoothly,
It is preferable that a blower is provided. It is preferable that the blower unit includes a rotatable fan and a driving unit such as a motor that rotationally drives the fan with an AC power source or a DC power source. The fan is not limited to the inside of the gas flow path, and may be provided outside the casing such as the gas outlet. Typically, for smaller devices, the fan is installed in the gas flow path of the device. When a fan is provided in the gas flow path, the installation position of the fan is not particularly limited, and can be appropriately selected depending on the arrangement position of the honeycomb or the dustproof filter. For example, in the apparatus shown in FIG. 1, it may be before or after the iodine-supporting activated carbon honeycomb and the acid-supporting activated carbon honeycomb or between these honeycombs. In order to prevent the fan from becoming soiled or corroded, it is preferable to dispose the fan on the downstream side of these honeycombs, that is, on the most downstream side of the gas flow path, as described above.

Furthermore, the toilet deodorizing device may be attached at an appropriate position depending on the type of the toilet. For example, the deodorizing device may be arranged in a mounting portion formed on the toilet seat box 36 shown in FIG. 5, for example. In addition, as described above, by utilizing the space formed between the toilet body 33 and the toilet seat 34 by the convex portion 34a, the gas introduction port side of the casing is usually formed into a curved cross section. It may be attached to the lower surface. Further, the deodorizing device may be the toilet bowl itself in which the deodorizing device is mounted in an appropriate place such as a mounting portion. In the case of a toilet bowl of a Japanese-style toilet, a deodorizing device may be attached to the front portion of the toilet body, and the automatic switch or sensor may be provided in the landing area on the side portion of the toilet bowl.

The damper is not always necessary. The damper may be provided on the gas outlet side, or may be provided on both the gas inlet side and the outlet side. Moreover,
In the deodorizing device shown in FIGS. 4 to 9 and 11 to 14,
A dust filter may be provided on the gas inlet side of the casing.

Further, in order to prevent the infiltration of spouts during stool use, urine use, or water washing from the gas inlet, a mesh or plate extending from the casing is provided outside the gas inlet. You may provide the shielding member of this.

As the power supply for rotating the fan, either AC or DC can be used. As the DC power source, a dry battery, a rechargeable storage battery, a solar battery or the like can be used. Especially refrigerators, getter boxes, closets, toilets, cars,
It is preferable to use a battery in a small deodorizing space such as a cupboard, a carrier case or a box for pets, plants, fruits, etc. where it is difficult to take power. When using a battery as a power source, it is convenient to match the service life of the battery with the service life of the honeycomb. In this case, the size of the deodorization treatment space, the type of the odorous component, the type of dry battery is selected according to the concentration, etc., and the iodine-supporting activated carbon honeycomb, the acid-supporting activated carbon honeycomb, the platinum group element-supporting activated carbon honeycomb, the bromine-supporting activated carbon honeycomb, etc. The saturated adsorption amount may be adjusted depending on the number of cells and the thickness of the honeycomb.

A device for deodorizing a small space where it is difficult to take power is such that an activated carbon honeycomb is provided in the gas flow path of the casing from the gas inlet to the gas outlet, and the gas to be treated is directed from the gas inlet to the gas outlet. And a battery for the blower is housed in the casing, and a suction port and a discharge direction of the gas to be treated are different from each other in the casing, and the gas inlet is provided. A gas outlet is preferably formed.

FIG. 20 is an exploded perspective view showing another embodiment of the present invention. In this example, a device useful for deodorizing a small power-hungry process space is shown.

That is, the casing of the deodorizing device has a half-cylindrical casing main body 151 having an open upper portion and standing walls 152a and 152b formed at both ends, and a cross section for closing the opening of the casing main body 151. Curved lid 153
It consists of and. The bottom surface of the casing body 151 is formed to be flush so as to enhance the mounting stability. A slit is formed in one standing wall 152a of the casing body 151 to form a gas introduction port 154.

On the gas introduction port 154 side of the casing body 151, an annular holding member 15 for holding an iodine-supporting activated carbon honeycomb 155 and an acid-supporting activated carbon honeycomb 156.
A mounting portion 158 for detachably mounting 7 is formed. Next to the mounting portion 158, the casing body 15
1 is a small motor 160 that rotationally drives the fan 159.
Is provided. That is, the bearing that rotatably supports the rotating shaft of the motor 160 is held by the first holding wall 161a, and the bearing cover that covers the other bearing of the small motor 160 is held by the second holding wall 161b. Is held.

Further, the casing main body 151 has a plurality of batteries 162 for rotating the motor 160.
Mounting parts 163a and 163b for mounting a and 162b are formed. The mounting portions 163a and 163b are composed of wall portions 166 and 167 to which conductive metal plates 164, 165a and 165b are attached, which are in elastic contact with the anodes and cathodes of the batteries 162a and 162b, respectively. Further, the motor 160 and the conductive metal plates 164 and 165 are also provided.
a and 165b are connected by leads 168 and 169, respectively.

A window 170 for confirming the operation of the fan 159 is formed in the lid 153. In addition, the casing body 151 and the lid 153 are provided with slit-shaped gas outlets 171 for discharging the gas sucked from the gas inlet 154 and processed by the iodine-supporting activated carbon honeycomb 155 and the acid-supporting activated carbon honeycomb 156. Has been done.

Therefore, the suction direction of the gas to be processed through the gas inlet 154 and the discharge direction of the process gas through the gas outlet 171 are different.

The casing body 151 and the lid body 153 are integrated by a screw 173 screwed to a screw stopper 172 which is provided upright to face each other.

In such a deodorizing apparatus, the gas to be treated sucked from the gas inlet 154 by the blowing means constituted by the motor 160 and the fan 159 is deodorized by the iodine-supporting activated carbon honeycomb 155 and the acid-supporting activated carbon honeycomb 156. Processed, casing body 151 and lid 15
It is discharged from the gas discharge port 171 of No. 3.

Further, since the fan 159 is operated by the batteries 162a and 162b, the deodorizing device can be arranged in a small deodorizing treatment space without a power source, for example, a space such as a refrigerator or a shoe box. Moreover, since the gas to be treated is forcibly sucked and discharged in the space, the deodorization efficiency of the iodine-supporting activated carbon honeycomb 155 and the acid-supporting activated carbon honeycomb 156 is extremely high. Further, since the inflow direction and the outflow direction of the gas to be processed are different, the suction and discharge of the gas to be processed are not impaired even if the gas is disposed at any location in the processing space, and the deodorization efficiency does not decrease. . In particular, since the peripheral surface of the lid body 153 in which the gas discharge port 171 is formed has a curved cross section, the gas discharge port 171 is not blocked by an adjacent article or the like.

When the batteries 162a and 162b are out of service, it is possible to easily confirm that the rotation of the fan 159 is stopped through the window 170.
The replacement timing of a and 162b can be determined.

Furthermore, the casing body 151 to the lid 1
Since it is possible to remove 53, each honeycomb 155,
Replacing 156 and batteries 162a and 162b is also easy.

The gas inlet and the gas outlet can be formed at appropriate places in the device. FIG. 21 is a schematic exploded perspective view showing another embodiment of the present invention. The same elements as those in FIG.
The description will be given with the same reference numerals.

In this example, the configuration is the same as that of the deodorizing device shown in FIG. 19 except that a slit-shaped gas introduction port 181 is formed on the peripheral wall of one end of the casing body 151 and the lid 153. There is.

In this apparatus, the gas inlet port 18 is provided on the peripheral wall.
1 and the gas discharge port 171 are formed, the gas introduction port 181 and the gas discharge port 171 are not blocked by the product even when they are accommodated in a space such as a refrigerator together with other products. Therefore, the deodorization processing space can be surely cleaned.

In the apparatus shown in FIGS. 20 and 21, at least one of the casing body and the lid should have a gas outlet, and the gas outlet slit on the bottom of the casing is not always necessary. . Further, the screw is not always necessary, and the lid may be attached to the casing body so as to be openable and closable, for example, via a hinge or the like.

FIG. 22 is a schematic perspective view showing still another embodiment of the present invention, and FIG. 23 is a partial cutaway perspective view of the apparatus shown in FIG.

In this example, the gas inlet 192 is formed on the upper end surface of the casing 191, and the gas outlet 193 is formed on the lower side wall. The upper end surface of the casing 191 corresponding to the gas inlet 192 is slightly bulged, and both side walls corresponding to the gas outlet 193 are curved outward. Inside the casing 191, a cylindrical body 194 that forms a gas flow path between the gas inlet 192 and the gas outlet 193 is arranged. An opening (not shown) communicating with the gas discharge port 193 is formed on the lower side surface of the cylindrical body 194.

On the upper part of the cylinder 194, an iodine-supporting activated carbon honeycomb 195 and an acid-supporting activated carbon honeycomb 196 are sequentially mounted. On the other hand, a fan 198 rotated by a small motor 197 is arranged below the cylindrical body 194. With the rotation of the fan 198, the gas to be treated is sucked from the gas inlet 192, and the iodine-supporting activated carbon honeycomb 195 and the acid-supporting activated carbon honeycomb 19 are introduced.
Deodorization processing is performed by No. 6, and the gas is discharged from the gas discharge port 193. The side wall of the casing 191 has a fan 1
A window 199 for confirming the rotation of 98 is formed.

Further, inside the casing 191, a pair of conductive metal plates 200a and 200b, which are held by a holding member (not shown) and on which the dry battery 202 is mounted, are arranged. These conductive metal plates 200a, 200b
Is connected to the motor 1 via leads 201a and 201b.
It is connected to 97. In addition, the conductive metal plate 200
A and 200b are bent and elastically contact the positive electrode and the negative electrode of the dry battery 202.

Further, a detachable lid 203 is formed on the side of the casing 191. This lid 203
Is the replacement of the dry cell 202, and the activated carbon honeycomb 1
It is used to take out the tubular body 194 to which the 95 and 196 are mounted. Since the opening formed on the lower side surface of the cylindrical body 194 is formed larger than the motor 197 and the fan 198, there is a problem in taking out the cylindrical body 194 from the casing 191 and mounting it in the casing 191. There is nothing to do.

In such a deodorizing apparatus, as in the apparatus shown in FIGS. 20 and 21, the gas inlet 192 and the gas exhaust port formed in the portion of the casing 191 in which the suction direction and the exhaust direction of the gas to be treated are different. The outlet 193 is not blocked by the article. Therefore, it is possible to smoothly and surely remove the odorous components in the deodorization processing space without a power source such as a refrigerator or a shoe box. In addition, the fan 19 is installed through the window 199.
By confirming the presence or absence of rotation of the battery 8, the life of the battery 202 and the replacement time can be determined, and the battery 203 and the cylinder 194 can be easily replaced by the lid 203.

FIG. 24 is a partially cutaway perspective view showing another embodiment of the present invention. This device is useful for maintaining the freshness of plants and fruits such as flowers, vegetables, apples and bananas in enclosed spaces such as refrigerators, carrier cases and boxes.

In the above apparatus, the activated carbon honeycomb is an iodine-supported activated carbon honeycomb 195 and an acid-supported activated carbon honeycomb 196.
a, and a platinum group element-supporting activated carbon honeycomb or a bromine-supporting activated carbon honeycomb 196b, except that they are sequentially disposed in the cylindrical body 194 in the direction from the gas inlet 192 to the gas outlet 193 of the casing 191. It is composed of the same elements as the device shown in FIGS.

In this apparatus, the activated carbon honeycombs 195, 196a, 19 are used in a closed space where it is difficult to take power.
Odor component can be removed smoothly and efficiently by 6b.
Further, since the platinum group element-supporting activated carbon honeycomb or the bromine-supporting activated carbon honeycomb 196b is disposed in the gas flow path, it is possible to efficiently remove lower unsaturated hydrocarbons such as ethylene generated from plants and fruits, and to close the closed space. You can maintain the freshness of plants and fruits inside. In particular, a combination with a platinum group element-supporting activated carbon honeycomb is preferable for the purpose of maintaining freshness. The plants mentioned here include flowers and vegetables such as cut flowers and potted plants.

In this example, the platinum group element-supporting activated carbon honeycomb or the bromine-supporting activated carbon honeycomb can be arranged at an appropriate position in the gas flow path, such as upstream or downstream of the iodine-supporting activated carbon honeycomb or the acid-supporting activated carbon honeycomb. . Further, the acid-supporting activated carbon honeycomb is not always necessary.

In the apparatus shown in FIGS. 20 to 24, the casing only needs to be capable of mounting the activated carbon honeycomb or the tubular body and the battery. For example, in the casing, the activated carbon honeycomb or the tubular body may be mounted. Each region corresponding to the battery mounting portion may be opened and closed by a lid body hingedly attached to the casing body.
Further, the gas discharge port may be formed on the peripheral wall of the casing on the downstream side of the air blowing unit composed of the motor and the fan, but is formed on the peripheral wall of the casing on the downstream side of the fan of the air blowing unit. Is preferred. A guide member for guiding the gas to the gas outlet may be provided on the downstream side of the fan in the gas flow path. In this case, the gas treated by the activated carbon honeycomb can be smoothly discharged from the gas discharge port.

The window formed in the casing can be formed at an appropriate position where the operating state of the fan can be confirmed. Further, in order to easily confirm the operating state of the fan, the fan may be colored differently, the blades of the fan may be colored differently, or the front and back surfaces of the fan may be colored differently. Further, a charging filter may be replaceably provided on the gas introduction port side of the casing.

In the deodorizing device shown in FIGS. 20 to 24 in which a dry battery is used as the power source of the motor, it is difficult to increase the air volume in view of the life of the battery. The number of cells of the activated carbon honeycomb can be appropriately selected according to the power supply voltage, etc.
In a deodorizing device with a small air volume, there is an appropriate value for the number of cells of the activated carbon honeycomb. For example, the air volume is 80-70
If the 0L / hr about small, the number of cells of the preferred active carbon honeycomb may, for example, 10 to 500 cells / inch. ^2, preferably 20 to 200 cells / inch. ^2, more preferably 25 to 125 cells / inch. ² about Is. When such an activated carbon honeycomb is used in a device with a small air flow, even if the number of cells is small and the contact area with the gas to be treated is small, the odorous components can be completely and smoothly removed in approximately one pass. Further, even if the odorous component cannot be completely removed by one pass, the odorous component can be removed within a short time, and the odorous component removal efficiency is high. From the viewpoint of the honeycomb structure, it is preferable that the number of cells and the contact area are large, but such an effect is surprising contrary to the general knowledge about the honeycomb structure. Therefore, the deodorizing device is useful for deodorizing a closed space such as a refrigerator, a shoe box, a closet, a cupboard, a closet, and a car.

Further, in the apparatus shown in FIGS. 20 to 24, in order to use the battery efficiently, a switch for turning the battery on and off may be provided at an appropriate position of the casing. It is not necessary to use a plurality of batteries, but at least one battery may be used. Further, when the battery is exhausted, the casing may be provided with an informing means for notifying the life and the replacement time of the battery.

When a plurality of activated carbon honeycombs are used, the plurality of activated carbon honeycombs may be integrated in advance or may be individually mounted in the gas passage of the casing.

The gas inlet port and the gas outlet port are located in a casing where the suction direction and the discharge direction of the gas to be treated are different from each other within a range that does not impair the suction and discharge of the gas to be treated, for example, the front surface of the casing. It may be formed on the upper surface, the front surface and the side surface. The gas inlet and the gas outlet are preferably formed on the same surface of the casing or surfaces adjacent to each other. Further, the gas inlet and the gas outlet may be formed in a portion of the casing that is not blocked by the articles in the deodorization processing space. You may.

FIG. 25 is a schematic perspective view showing a deodorizing device for a trash can, FIG. 26 is a schematic side view of the device shown in FIG. 25, and FIG. 27 is a sectional perspective view showing a lid of the device shown in FIG.

This deodorizing device comprises a box 211 having a cylindrical cross section which constitutes the main body of the trash box, and a lid 217 which is rotatably attached to the box 211 by a hinge 216 and covers the opening of the box 211. I have it.

At the bottom of the box 211, the pedal 2
12 are provided. From the pedal 212, a shaft 213 that extends across the lower space of the box 211 and is pivotally attached to the support member 214 is extended. The pivotally attached portion 213a formed at the other end of the shaft 213 has
An end of a connecting rod 215 extending along the side wall of the box 211 is pivotally attached, and the other end of the connecting rod 215 is attached to a pin 216a of the hinge portion 216. Therefore, when the pedal 212 is stepped on, the shaft 213 pivots about the pivotal joint with the support member 214 as a fulcrum, and the connecting rod 21
5 is lifted, the lid 217 pivots upward around the hinge portion 216, and the opening of the box 211 is opened.

The lid body 217 includes a hollow lid body 218 for covering the opening of the box 211, and the lid body 2
A plurality of slits 219 formed in the central portion of the inner surface of 18
And a shield plate 222 attached to the inner surface of the lid body 218 via a ring-shaped spacer 220 formed in the circumferential direction and having an outer diameter smaller than the opening of the box 211.
It has and. A plurality of slits 221 that communicate with the slits 219 of the lid body 218 are formed in the ring-shaped spacer 220 at predetermined intervals.

The hollow portion of the lid body 218 and the gas introduction port 232 of the casing 231 constituting the deodorizing device are
The hose 223 having flexibility is connected and connected. In the gas flow path from the gas inlet 232 to the gas outlet 233 of the casing 231, an iodine-supporting activated carbon honeycomb 234, an acid-supporting activated carbon honeycomb 235, a fan 236, and a motor 237 are sequentially arranged in the same manner as the above apparatus. Has been done. The motor 237 can be driven by using a DC power supply or an AC power supply such as a battery.

In place of the acid-supporting activated carbon honeycomb, a bromine-supporting activated carbon honeycomb and / or a platinum group element-supporting activated carbon honeycomb may be used. In addition to the acid-supporting activated carbon honeycomb, a bromine-supporting activated carbon honeycomb and / or a platinum group element may be used. A supported activated carbon honeycomb may be used.

Further, a switch (not shown) for detecting the contact between the box 211 and the lid body 218 is attached at an appropriate position on the peripheral edge of the lid body 218 which comes into contact with the upper end surface of the box 211. In response to the detection signal of this switch, a timer (not shown) for driving the motor 237 for a predetermined time is activated.

In such a deodorizing device, the petal 2
When the pedal 217 is released by stepping on 12, the lid 217 is opened and dust is put into the box 211, the lid 217 closes the opening of the box 211. At that time, since the shielding plate 222 is attached to the lid body 217, it is possible to prevent dust and scattered sewage from directly reaching the hollow portion of the lid body 218. Further, even when the dust is put in a plastic bag, a paper bag, or the like, the slits 219 of the lid body 218 are not blocked by the bag or the like. It should be noted that the opening of the box 211 is not completely sealed by the lid 217, and normally there is a slight gap between the box 211 and the lid body 218.

Then, the lid body 218 becomes the box 211.
When the switch detects that the opening of the
The timer drives the motor 237 for a predetermined time in response to the detection signal from the switch. By driving the motor 237, the odorous component in the box 211 is sucked into the casing 231 of the deodorizing device via the slit 221 of the ring-shaped spacer 220, the slit 219 of the lid main body 218, and the hose 223, and the iodine-carrying activated carbon. Treated with honeycomb 234 and acid-loaded activated carbon honeycomb 235. The clean gas from which the odorous components have been removed is discharged from the gas discharge port 233 of the casing 231.

In the deodorizing device for the trash box described above, the hose is attached to the end of the lid body, but the hose can be attached in an appropriate place as long as it is in communication with the hollow portion of the lid body.

FIG. 28 is a sectional view showing another example of the lid of the deodorizing device for a dustbin. In this example, the hose 246 is attached to a substantially central portion of the lid body 242. That is, the lid body 241 has a hollow lid body 242 having slits 243 formed on the inner surface thereof, spacers 244 formed on the inner surface of the lid body at predetermined intervals, and a shield plate 245 attached to the spacer. It has and.

A hose 246 is connected to a substantially central portion of the lid body 242 so as to communicate with the hollow portion of the lid body 242. The slit 24 is provided inside the lid body 242.
A guide plate 247 that guides the gas to be treated is provided in an oblique direction from the outer peripheral portion of 3 toward the connecting portion of the hose 246.

In the deodorizing device for the dustbin, the shape of the box and lid is not particularly limited, and may be, for example, a quadrangular shape. Further, the box itself may be a trash box, and a case functioning as a trash box may be removably arranged in the box. In the latter case, since the case containing the dust can be taken out from the box, it is not necessary to transfer the entire box, which is convenient when disposing of the dust. Further, the mechanism for opening and closing the lid with the pedal is not limited to the above-mentioned structure, and can be configured by combining various mechanical mechanisms. Further, the spacer and the shielding plate of the lid are not always necessary, and a narrow slit or hole capable of suppressing the intrusion of splashes may be formed in the lid body.

Further, the deodorizing device may be integrally attached to the box or may be built in the box so that it can be attached. When a deodorizing device is provided on the side of the box, the deodorizing device may be covered with a cover together with the hose, if necessary. Further, in the deodorizing device, a dustproof filter may be provided on the upstream side of the gas introduction port of the casing.

A small deodorizing device may be attached between the shielding plate and the lid body. In this case, the fan may be operated by a battery or the like, and the slit in the lid body is unnecessary.

The opening and closing of the lid is not limited to the above-mentioned switch, but may be a pedal, an upper end surface of the box, a piezoelectric sensor attached to the inner surface of the lid, a contact sensor provided at one end of the connecting rod, or the like. Various sensors and switches can be used.

Furthermore, the fan may always be operated without providing the switch and the sensor.

The deodorizing device of the present invention may be equipped with an antitheft device. FIG. 29 is an exploded perspective view showing a deodorizing device for a toilet provided with an anti-theft device. The same members as those of the deodorizing device shown in FIG. 11 will be described with the same reference numerals.

The anti-theft device is formed by movably connecting the bands 302a and 302b made of metal such as rigid and strong metal through hinges 301 and the ends of the bands 302a and 302b with their positions displaced from each other. Hollow cylindrical portion 303
a, 303b and these hollow cylindrical portions 303a, 303b
And a pin 305 inserted into the hollow portion of the. A surface of one of the bands 302a adjacent to the hinge 301,
The inner surface of the casing 82 of the deodorizing device 81 is the adhesive 30
It is fixed integrally by 4, etc. Therefore, the other band 302b is rotatable via the hinge 301.

At one end of the pin 305, the pin 3
A threaded portion 306 having a diameter larger than that of the shaft portion 05 is formed. The threaded portion 306 corresponds to the corresponding hollow cylindrical portion 303a.
Is screwed into a screw portion formed on the inner peripheral surface of the. Further, a hexagonal hole 307 is formed on the end surface of the screw portion 306, and the hexagonal hole 307 does not conform to the JIS standard.

The anti-theft device is equipped with a wire 308, and the ring portions 30 are provided at both ends of the wire 308.
9a and 309b are formed. One ring part 30
The pin 305 is inserted into 9a, and the other ring portion 309b is used to irremovably connect to a fixed member such as a water pipe 310. That is, in a state where the wire 308 is hung or wound around the water pipe 310,
One ring portion 309a is inserted into the other ring portion 309b, and one ring portion 309a and the hollow cylindrical portions 303a, 3a
Insert the pin 305 into 03b. Then, the hexagonal hole 3
When the screw portion 306 of the pin 305 is screwed into the screw portion of the hollow cylindrical portion 303 by using a special screwdriver adapted to 07,
Since the hexagonal hole 307 does not conform to the JIS standard, the band 302b cannot be rotated even by using a normal driver. Therefore, it is possible to prevent the deodorizing device 81 from being stolen. Further, since the bands 302a and 302b are located in the cartridge mounting portion of the casing 82, it is possible to prevent the cartugget from being stolen.

In this example, the band may be adapted to the length of the outer circumference of the casing of the deodorizing device and not removable from the deodorizing device.

FIG. 30 is a schematic exploded perspective view showing a battery antitheft device used for driving a motor of a deodorizing device,
31 is a vertical sectional view of the anti-theft device shown in FIG.

This apparatus comprises a battery 322 housed in a box 321, and a U-shaped rod 323 on which the battery 322 is placed. A groove 324 is formed on the peripheral surface of the end portion of the rod.

The U-shaped rod 323 has holes 325, 32 formed in both end surfaces of the box 321.
6 is inserted. A hole 32 on one end face of the box 321
5, a ring member 327 having a screw hole is fitted and inserted into an end portion of the rod 323 protruding from the hole 326 on the other end surface.

A screw 328 is screwed into the screw hole 327a of the ring member 327. The screw 328 is screwed by using a special screwdriver in the same manner as above, using a hexagonal recess not formed in conformity with JIS standard formed on the end face. By the screwing of the screw 328, the tip end of the screw 328 is fitted into the groove 324 of the rod 323, and the U-shaped rod 323 is prevented from being pulled out. The reference numeral 329 is a battery 322.
The cord connected to the battery 322 is the electrode protection plate of the slit 3 formed on the end surface of the box 321.
Withdrawn from 30.

Only one end of the U-shaped rod is
You may fix with a ring member or a screw.

Further, in the U-shaped portion of the U-shaped rod 323,
Similar to the above, one ring portion 309a of the wire 308
Is inserted. In addition, the other ring portion 3 of the wire 308
09b is used to irremovably connect to a water pipe 310 or the like.

In such a device, the U-shaped rod 323 is used.
The special screw 328 prevents the U-shaped rod 323 from being irremovably connected to the water pipe 310 by the wire 308.
Theft of 22 can be prevented.

In the apparatus shown in FIGS. 28 to 30, instead of the hexagonal hole or the hexagonal recess, a hole or a recess not conforming to the standard, for example, a polygonal hole or a recess such as a pentagon may be formed. Further, a conventional connecting member such as a chain may be used instead of the wire.

[0175]

EFFECTS OF THE INVENTION According to the novel activated carbon honeycomb of the present invention and the gas treatment method using the same, since the activated carbon honeycomb carries iodine or / and an inorganic iodide, it contains a large amount of odorous and harmful components. Even if it is a processing gas, it can efficiently remove odorous components and harmful components, has low ventilation resistance, and can be smoothly adsorbed and removed. According to this new activated carbon honeycomb, it becomes possible to apply the gas treatment which has hitherto been used only for industrial purposes to daily life products.

The gas treatment apparatus of the present invention can efficiently remove a large number of odorous components and harmful components in the gas to be treated, and has a large adsorption and removal effect. Moreover, the ventilation resistance is small, and the honeycomb can be replaced with a one-touch type.

[0177]

The present invention will be described in more detail based on the following examples and comparative examples, but the present invention is not limited to these examples.

Example 1 (1) Preparation of iodine-supporting activated carbon honeycomb BET surface area 1050 m ² / g, number of cells 500 / i
n. ^{2. An} I ₂ O ₅ aqueous solution was sprayed on an activated carbon honeycomb having a size of 50 mmφ and a thickness of 20 mm. Since the amount of the solution that the activated carbon honeycomb can contain is 20 g, 20 g of the solution was sprayed. The amount of I ₂ O ₅ in the sprayed solution was calculated from the amount sprayed onto the honeycomb. After spraying, the honeycomb
After drying at 110 ° C., an iodine-supporting activated carbon honeycomb containing 2.5% by weight of I ₂ O ₅ corresponding to 1.90% by weight of iodine was prepared.

(2) Deodorization test A deodorization test was conducted using a gas treatment device as shown in FIG. 1 (however, the acid-supporting activated carbon honeycomb was not installed). That is, a deodorization test was performed on a gas treatment device in which one activated carbon honeycomb supporting iodine and sirocco fan were installed in this order.

The ON-OFF of the automatic switch controls the operation time of the sirocco fan. When the automatic switch is ON, H ₂ S of 300 ppb and CH of 100 ppb are generated.
_The atmosphere containing ₃ SH was aspirated at a flow rate of 100 L / min. Under this condition, by turning on and off the automatic switch,
The operation time of the sirocco fan was 10 minutes, the operation time of the sirocco fan was 5 minutes, and the ON-OFF operation was repeated.

[0181] Then, when the cumulative operating time of the sirocco fan reaches 600 hours, where the components in the gas at the gas outlet was examined by gas chromatography, H ₂
S and CH ₃ SH were not detected, the removal rate was 100%, and the gas at the gas outlet was odorless.

Example 2 (1) Preparation of acid-supporting activated carbon honeycomb BET surface area of 1050 m ² / g, number of cells 500 / i
n. ^{2. A} phosphoric acid aqueous solution was sprinkled on an activated carbon honeycomb having a size of 50 mmφ and a thickness of 20 mm. Since the amount of the solution that the activated carbon honeycomb can contain is 20 g, 20 g of the aqueous solution was sprayed. The amount of phosphoric acid in the sprayed solution was calculated from the amount sprayed on the honeycomb. After spraying, honeycomb 1
It was dried at 10 ° C. to prepare an acid-supporting activated carbon honeycomb containing 20% by weight of phosphoric acid.

(2) Deodorization Test A deodorization test was conducted using a gas treatment device as shown in FIG. That is, in the casing, one iodine-supporting activated carbon honeycomb, one acid-supporting activated carbon honeycomb, and sirocco fan similar to those in Example 1 (1) were installed in this order.

The deodorization test was conducted with 300 ppb H ₂
S, 100 ppb CH ₃ SH and 150 ppb C
The operation was performed in the same manner as in Example 1 except that the atmosphere containing H ₃ NH ₂ was sucked in, by controlling the operation and stop of the sirocco fan using an automatic switch.

[0185] Then, when the cumulative operating time of the sirocco fan reaches 600 hours, where the components in the gas at the gas outlet was examined by gas chromatography, H ₂
S, CH ₃ SH and CH ₃ NH ₂ were not detected, the removal rate was 100%, and the gas at the gas outlet was odorless.

Examples 3 to 8 and Comparative Example 1 (1) Preparation of iodine-supporting activated carbon honeycomb BET surface area 1050 m ² / g, cell number 500 cells / i
n. ^{2. A} 2.63 wt% KI aqueous solution was sprayed on an activated carbon honeycomb having a size of 50 mmφ and a thickness of 20 mm. The amount of solution sprayed on is 20 g. After spraying, the honeycomb was dried at 110 ° C. to prepare an iodine-supported activated carbon honeycomb containing 3% by weight of KI.

NH ₄ I-loaded activated carbon honeycomb, KI and I
₂ supported activated carbon honeycomb, KIO ₃ supported activated carbon honeycomb,
NiI ₂ -supported activated carbon honeycombs and CoI ₂ -supported activated carbon honeycombs were produced in the same manner as above.

(2) A deodorization test was conducted under the same conditions as in Example 2 except that the iodine and / or inorganic iodide-supporting activated carbon honeycomb and the acid-supporting activated carbon honeycomb were combined as shown in the table. The same activated carbon honeycomb as in Example 1 was used as the activated carbon honeycomb supporting iodine, inorganic iodide and acid, and the above chemicals were loaded in the same manner as in Example 1.

Further, as Comparative Example 1, a deodorizing test was conducted by combining an activated carbon honeycomb which did not carry iodine or inorganic iodide and an activated carbon honeycomb which carried 15% by weight of phosphoric acid. The results are shown in Table 1.

Comparative Example 2 Activated carbon honeycomb (BE
T surface area 1050 m ² / g, cell number 500 cells / i
n. ² , size 50 mmφ, thickness 20 mm) were piled up and the same deodorization test as in Example 2 was conducted. The results are shown in Table 1.

Comparative Example 3 Two 15 wt% phosphoric acid-supporting activated carbon honeycombs obtained in the same manner as in Example 2 (1) were stacked, and the same deodorization test as in Example 2 was conducted. The results are shown in Table 1.

[0192]

[Table 1] Example 9 A deodorizing device for a toilet shown in FIG. 4 was prepared, and attached to a toilet as shown in FIG. 5, and a deodorizing test was conducted for 10 months. That is, the BET surface area is 925 m ² / g, the number of cells is 300 cells / i
n. ² , 2.5 mm by weight of KI ₃ (2.27 in terms of iodine) on an activated carbon honeycomb having a size of 72 mmφ and a thickness of 20 mm.
(% By weight) supported inorganic iodide-supporting activated carbon honeycomb is installed on the upstream side of the gas flow path, and an acid-supporting activated carbon honeycomb supporting 25% by weight of H ₃ PO ₄ is added to the same activated carbon honeycomb as described above. It was installed on the downstream side of the road. In addition, a charging filter [G-110, 74 mm, manufactured by Sumitomo 3M Limited] is provided on the upstream side of the inorganic iodide-supporting activated carbon honeycomb.
φ] was provided, and sirocco fan [made by Topia Industry Co., Ltd.] was provided on the downstream side of the acid-supporting activated carbon honeycomb.

The operation of the fan was controlled by an infrared sensor and a timer. That is, the timer for controlling the operation time of the motor was set so that the fan was operated for one and a half minutes based on the OFF signal of the sensor and then the fan was stopped. The suction amount of gas during the operation of the fan was 150 L / min.

When the deodorization test was carried out under such conditions, all 10 monitors did not feel any odor before, during or after stool over 10 months.

Example 10 Internal volume 281 L (750 mm × 750 mm × 500 m)
A small deodorizer as shown in FIG. 21 was placed in the center of the floor of the polyvinyl chloride container of m). This small deodorizer has an activated carbon honeycomb (50 mmφ × 20 mm, 30 cells) carrying 1.0% by weight of KI on the gas inlet side of the casing.
0 / in. ² ) is placed, and H ₃ P is placed on the gas outlet side.
Activated carbon honeycomb (50 mmφ that supports 20% by weight of O ₄₎
× 20 mm, 300 cells / in. ² ) and ^two single dry cells at 300 L / hr. And a fan that can obtain the air volume of.

A predetermined amount of standard gas containing H ₂ S, CH ₃ SH and (CH ₃ ) ₃ N was injected into the container. After forced stirring for 1 minute and homogenization, the gas in the center of the container was sampled through a thin Teflon tube and analyzed by gas chromatography. As a result, the concentrations of the above components were as follows: H ₂ S 1.3 ppm, CH ₃
SH is 0.98 ppm and (CH ₃ ) ₃ N is 0.5
It was 6 ppm.

In this state, the small deodorizer was turned on and the operation of the small deodorizer was started. Six hours after the start of operation, the gas in the container was forcibly stirred again for 1 minute, and immediately sampled and analyzed. As a result, H ₂ S, CH ₃ SH
Both (CH ₃ ) ₃ N and (CH ₃ ) ₃ N have detection limits (0.02
ppm) or less, no odor was felt, and it was well deodorized.

[0198] As a control, the floor center of the container, commercial refrigerator deodorant comprising granular activated carbon (American drag Corporation Ltd., "Kimco ^R") put an, H
_A predetermined amount of standard gas containing ₂ S, CH ₃ SH and (CH ₃ ) ₃ N respectively was injected, and after forcibly stirring the inside of the container for 1 minute, the gas in the container was sampled and analyzed. The concentration is 1.1 ppm for H ₂ S, CH ₃
SH is 0.95 ppm and (CH ₃ ) ₃ N is 0.5
It was 6 ppm.

When left in this state, the gas in the container was forcibly stirred again for 1 minute at 6 hours, and immediately sampled and analyzed. As a result, H ₂ S was 0.25 ppm, CH ₃ SH was 0.21 ppm, and (CH ₃ ) ₃ N is 0.08pp
m, and a significant odor was felt.

Example 11 An indoor deodorizer was installed in the center of a room A for six persons (inner volume 90 m ³ ) of a bedridden elderly person. This indoor deodorizer is equipped with a charging filter [G, Sumitomo 3M Co., Ltd., G in the gas flow path of the casing, from the gas inlet to the gas outlet.
-0115] 1 sheet, 40 sheets of activated carbon honeycomb (84 mm × 44 mm × thickness 20 mm, 300 cells / in. ² ) carrying 1.5% by weight of KI, 15% by weight of H ₃ PO ₄
Activated carbon honeycomb to support (84mm x 44mm x thickness 2
0 mm, 300 cells / in. ² ) 40 sheets and a cross flow fan are installed in this order. By the operation of the fan, the air in the room flowed in the order of the charging filter, the KI-supporting activated carbon honeycomb, the H ₃ PO ₄ -supporting activated carbon honeycomb, and the fan, and the air volume at that time was 5 m ³ / min.

Next to the above-mentioned room A, there is a room for a 6-person room (internal volume 90 m ³ ) for the same bedridden elderly as room A, and this room B was used as a control. Room B was not treated with the indoor deodorizer.

When the indoor deodorizer in the room A was continuously operated, and a sensory test was conducted by a panel of 14 people on the room A and the room B on the 4th day, the room B had an old man smell and a urine odor. Remarkably recognized. On the other hand, no odor was sensed in room A, and the room was well deodorized, and the deodorizing effect was noticeable.

Example 12 The same indoor deodorizer as used in Example 11 was placed in the center of a room (internal volume 150 m ³ ) where 49 people took a rest by alternating,
A deodorizing test for indoor cigarette odor was conducted. Note that 35 out of 49 people are smokers.

On the 10th day after the start of operation of the indoor deodorizer, a sensory evaluation was conducted by all 49 persons, and 32 persons corresponding to 65% recognized the deodorizing effect.

Examples 13 to 17 The apparatus shown in FIGS. 22 and 23 equipped with an activated carbon honeycomb having the number of cells shown in Table 2, a single dry cell, a motor and a fan was used.
Put it in a commercially available refrigerator (content: 112 L) and use hydrogen sulfide (H
₂ S) 3 ppm and methyl mercaptan (MM) 3 pp
A gas containing m was injected, and the residual concentration of each odorous component in the refrigerator was measured over time by gas chromatography.

As the activated carbon honeycomb, one iodine-supported activated carbon honeycomb carrying 1% by weight of potassium iodide on an activated carbon honeycomb having a BET surface area of 810 m ² / g, a size of 50 mmφ and a thickness of 20 mm, and phosphoric acid in the activated carbon honeycomb of 10 An acid-supported activated carbon honeycomb supporting 1% by weight was used. In addition, a gas containing 60 ppm of ammonia (NH ₃ ) was injected, and the residual concentration of ammonia in the refrigerator was measured with time in the same manner as above. The air volume and the linear velocity when the activated carbon honeycomb was used were also measured.

Comparative Example 4 The residual concentration of each odorous component due to natural decay was measured in the same manner as in Example 10 without using the apparatus used in Example 10.

[0208] using a commercially available refrigerator deodorant containing Comparative Example 5 Granular activated carbon (American drag Corporation Ltd., "Kimco ^R"),
In the same manner as in Example 10, the residual concentration of each odorous component was measured.

The results are shown in Tables 2-5.

[0210]

[Table 2]

[0211]

[Table 3]

[0212]

[Table 4]

[0213]

[Table 5] As is clear from Tables 2 to 5, in the deodorizing device using the dry battery, there is an appropriate value for the number of cells of the activated carbon honeycomb,
Odor components can be efficiently removed within a short time by the activated carbon honeycomb with a small number of cells.

Example 18 About 5 kg of leftover food and cooking waste and 1 kg of sawdust containing fermentation bacterium in a stainless steel container (internal volume 130 L) equipped with stirring blades.
Was added, and the raw garbage was treated while circulating hot air at 50 to 80 ° C. at 100 to 200 L / min.

Exhaust gas from this stainless steel container contains hydrogen sulfide, sulfur-containing compounds such as methyl mercaptan, nitrogen-containing compounds such as ammonia and trimethylamine, i.
-A lower fatty acid such as valeric acid is 0.1 to
It contains several tens of ppb, and has a noticeable odor.

The exhaust gas from this stainless steel container was charged with a charging filter [G-0115 manufactured by Sumitomo 3M Limited].
1 piece, 1 chemical-free activated carbon honeycomb (diameter 76 mm, thickness 20 mm, number of cells 300 / in. ² ) and K
Activated carbon honeycomb supporting 1.0% by weight of I (diameter 76 m
m, thickness 20 mm, number of cells 300 / in. ² ) One polyvinyl chloride pipe (inner diameter 76)
mm) and subjected to a deodorizing test.

When the garbage treatment was continued for 10 days, no odor was felt in the exhaust gas from the polyvinyl chloride pipe, and a good organic fertilizer was formed in the stainless steel container.

Example 19 Volume 135 in which 25 to 35 Beagle dogs are housed
m ³ (6.0 m × 9.0 m × height 2.5 m) room (note that the room is ventilated 20 times / h with fresh air)
(Ventilated with r), a deodorizing device as shown in FIG. 17 was set. In this deodorizing device, in the gas flow path of the casing, from the gas inlet to the gas outlet,
Charge filter [Sumitomo 3M, G-011
5] One piece, chemical-free supported activated carbon honeycomb (84 mm x 4
4 mm × thickness 20 mm, number of cells 300 / in. ² ) 2
One piece, activated carbon honeycomb supporting 1.2% by weight of KI (8
4 mm x 44 mm x thickness 20 mm, number of cells 300 / i
n. ² ) 21 pieces and sirocco fan are installed in this order. Due to the operation of the fan, the odorous gas in the room
The charging filter, the chemical-unloaded activated carbon honeycomb, the KI-loaded activated carbon honeycomb, and the fan flow in that order, and the air volume at that time was 2 m ³ / min.

The deodorizing test in the dog breeding room was continued for one year continuously, and sensory evaluation by the five panelists was conducted once a week for the inlet and outlet gas of the deodorizing device, and the odorous component concentration was measured by the concentrated gas chromatography method every month. It was done once.

As a result, in the 6-level evaluation by the panelists, the gas inlet of the deodorizing device always "feels a significant odor", whereas the gas outlet is evaluated as "odorless" for 9 months from the start of the test. After 10 months, the evaluation was “no odor” or “a slight odor is felt”.

On the other hand, in the evaluation by the concentrated gas chromatography method, the gas at the gas introduction port of the deodorizing device contained 0.1% of sulfur-containing compounds such as hydrogen sulfide and methyl mercaptan.
~ 0.1 ppb, n-butyric acid, n- and i-valeric acid
~ It was found to contain several ppb. Also, from the measurement of the odorous component concentration in the gas at the gas outlet of the deodorizing device, the removal rate of sulfur-containing compounds was 85% throughout the year.
Above, the removal rate of n-butyric acid was 8 months after the start of testing.
It was 5% or more. The removal rate of n- and i-valeric acid was 85% or more for 10 months from the start of the test.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an example of a gas treatment device of the present invention.

FIG. 2 is a schematic diagram showing a relationship between a processing space and a gas processing device.

FIG. 3 is a block diagram showing an electrical configuration of the deodorizing device of the present invention.

FIG. 4 is a schematic partially cutaway perspective view showing an example of a deodorizing device for a toilet bowl.

FIG. 5 is a schematic perspective view of a toilet bowl including the deodorizing device of FIG.

FIG. 6 is a schematic partially cutaway perspective view showing another embodiment of the present invention.

FIG. 7 is a schematic perspective view of a toilet bowl including the deodorizing device of FIG.

FIG. 8 is a schematic partially cutaway perspective view showing still another example of the deodorizing device of the present invention.

9 is a schematic perspective view of a toilet bowl including the deodorizing device of FIG.

FIG. 10 is a block diagram showing an electrical configuration of the deodorizing apparatus of the present invention.

FIG. 11 is a schematic perspective view showing another example of the deodorizing device of the present invention.

FIG. 12 is a schematic sectional view of a toilet bowl including the deodorizing device of FIG. 11.

FIG. 13 is a schematic perspective view showing still another example of the deodorizing device of the present invention.

FIG. 14 is a schematic perspective view of a toilet bowl including the deodorizing device of FIG.

FIG. 15 is a block diagram showing still another electrical configuration of the toilet deodorizing device of the present invention.

FIG. 16 is a block diagram showing another electrical configuration of the deodorizing device of the present invention.

FIG. 17 is a schematic sectional perspective view showing still another embodiment of the present invention.

18 is a cross-sectional view of the device shown in FIG.

FIG. 19 is a schematic sectional view showing still another embodiment of the present invention.

FIG. 20 is an exploded perspective view showing another embodiment of the present invention.

FIG. 21 is a schematic exploded perspective view showing another embodiment of the present invention.

FIG. 22 is a schematic perspective view showing still another embodiment of the present invention.

23 is a partial cutaway perspective view of the device shown in FIG. 22. FIG.

FIG. 24 is a partially cutaway perspective view showing another embodiment of the present invention.

FIG. 25 is a schematic perspective view showing a deodorizing device for a trash can.

26 is a schematic side view of the device shown in FIG. 25.

27 is a cross-sectional perspective view showing a lid of the device shown in FIG. 25.

FIG. 28 is a cross-sectional view showing another example of the lid of the deodorizing device for a dustbin.

FIG. 29 is an exploded perspective view showing a deodorizing device for a toilet provided with an anti-theft device.

FIG. 30 is a schematic exploded perspective view showing a battery antitheft device.

31 is a vertical sectional view of the anti-theft device shown in FIG. 30. FIG.

[Explanation of symbols]

1, 21, 41, 81 ... Gas treatment device (deodorizing device) 2, 22, 42, 82, 121, 141, 191, 23
1 ... Casing 3,23,43,83,122,142,154,18
1,192,232 ... Gas inlet 4,24,44,84,123,143,171,19
3, 233 ... Gas outlet 5, 25, 45, 85 ... Gas flow path 6, 27, 47, 88, 127, 146, 155, 19
5,234 ... Iodine-supporting activated carbon honeycomb 7,28,48,89,128,147,156,19
6,196a, 235 ... Acid-supporting activated carbon honeycomb 196b ... Bromine-supporting activated carbon honeycomb 8, 29, 49, 76, 160, 197, 237 ... Motor 9, 30, 50, 77, 90, 130, 149, 15
9, 198, 236 ... Fan 11 ... Odor sensor 52 ... Automatic switch 61, 94 ... Optical sensor 71 ... Sensor 74 ... Timer 151 ... Casing body 153 ... Lid

 ─────────────────────────────────────────────────── ─── Continuation of the front page (31) Priority claim number Japanese Patent Application No. 4-129997 (32) Priority date Hei 4 (1992) April 22 (33) Priority claim country Japan (JP)

Claims (16)

[Claims] 1. An activated carbon honeycomb carrying iodine or / and an inorganic iodide. 2. The activated carbon honeycomb according to claim 1, wherein the number of cells is 10 to 1500 cells / inch ² . 3. The activated carbon honeycomb according to claim 1, wherein the number of cells is 20 to 200 cells / inch ² . 4. A gas treatment method for treating a gas to be treated with the activated carbon honeycomb according to claim 1. 5. The gas to be treated is selected from an activated carbon honeycomb supporting iodine or / and an inorganic iodide, a chemical-unsupported activated carbon honeycomb, an acid-supported activated carbon honeycomb, a bromine-supported activated carbon honeycomb and a platinum group element-supported activated carbon honeycomb. The gas treatment method according to claim 4, wherein the treatment is performed with at least one activated carbon honeycomb. 6. The gas treatment method according to claim 4, wherein the gas to be treated is treated with an activated carbon honeycomb supporting iodine or / and an inorganic iodide and an acid-supporting activated carbon honeycomb. 7. The gas treatment method according to claim 4, wherein a gas to be treated containing an odorous component is deodorized. 8. The gas treatment method according to claim 4, wherein a gas to be treated containing at least one odorous component selected from a sulfur-containing compound, amines and aldehydes is deodorized. 9. Treating a gas in a closed system in which plants or fruits are present with an activated carbon honeycomb supporting iodine or / and an inorganic iodide and a bromine-supporting activated carbon honeycomb or a platinum group element-supporting activated carbon honeycomb. The gas treatment method according to claim 4, wherein the freshness of the plant or fruit is maintained by the method. 10. A gas treatment device in which the activated carbon honeycomb according to any one of claims 1 to 3 is provided in a gas flow path from a gas introduction port of a gas to be treated to a gas discharge port. 11. An activated carbon honeycomb supporting iodine or / and an inorganic iodide in a gas flow path, a chemical-unsupported activated carbon honeycomb, an acid-supported activated carbon honeycomb, a bromine-supported activated carbon honeycomb and a platinum group element-supported activated carbon honeycomb. The gas treatment device according to claim 10, wherein at least one selected activated carbon honeycomb is provided. 12. The gas treatment device according to claim 10, wherein an activated carbon honeycomb supporting iodine or / and an inorganic iodide and an acid-supporting activated carbon honeycomb are provided in the gas flow path. 13. The gas processing device according to claim 10, further comprising a blowing unit. 14. A deodorizing device for a toilet bowl according to claim 10.
3. The gas treatment device according to any one of item 3. 15. The deodorizing device for a closed space according to claim 1.
The gas treatment device according to any one of 0 to 13. 16. The gas treatment device according to claim 10, which is a device for maintaining freshness of plants or fruits.