JPH0632807B2 - Human waste drying equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to human waste drying for treating human waste outdoors without purification treatment facilities, transportation such as ships and trains, and tunnels where vacuum cars cannot enter. It relates to the device.

[Conventional technology]

The human excrement excreted from the human body is released into the sewage in a normal house by a flush toilet or the like, or is temporarily stored in a septic tank to be purified and then released into a general river. However, when an event is held outdoors, for example, at a venue where a large number of personnel such as an athletic meet, a trade fair, and a gathering are provided, a temporary toilet is provided for processing.

Most of the temporary toilets used in the past have a toilet tank for storing human waste, and the human waste excreted from the human body is stored in this toilet tank. Therefore, the temporary toilet after use needs to suck and collect the accumulated excrement using a vacuum car or the like, which is troublesome.

In addition, long-distance transportation such as buses, trains, and ships are equipped with a dedicated tank for storing excreted excrement. After storing excrement in this tank and deodorizing it with chemicals, The method of collecting with a vacuum car was common.

As described above, in the conventional treatment of human waste from temporary toilets or moving transportation facilities, most of the waste is stored and treated as excreted from the human body, and must be said to be extremely unsanitary. I didn't get it. For this reason, excreted excrement remains when used for a long period of time, which not only causes a bad odor but also dislikes workers who perform the treatment, which is not preferable in terms of modernization of work.

For these purposes, various hygienic treatment methods have been conventionally considered. For example, sterilization and deodorizing treatments are performed by adding chemicals together with human waste. Although it is often used for transportation such as Shinkansen, it has a drawback that it cannot be used for a long period of time because the medicine circulates and the cost of using the medicine becomes high.

Further, a method of storing human waste in a bag made of vinyl or the like and packing it to prevent odor from being emitted is also considered. However, a vinyl bag having a considerably large area must be used for one excretion, and the treatment cost becomes high, and the treatment after separating human waste from the vinyl bag at a later date is troublesome.

In addition, a method of directly drying excreted excrement with a heating power such as a burner is also considered. However, most of the components of human waste are water, and in order to remove this water, a large amount of energy is lost and a single treatment time becomes long.

In view of such conventional drawbacks, the same inventor as the present application rotates a stirring blade in a container and stores a heat storage body in the container, and heat excreted manure in a short time by heat generated from the heat storage body. A drying mechanism has been proposed (for example, Japanese Patent Application No. 63-1).
No. 24150).

[Problems to be Solved by the Invention]

However, in this newly proposed method, since the container is heated from the outside, the whole container has to be heated, and the thermal efficiency is extremely poor. At the same time, in order to oxidize the human waste, air must be blown from the outside into the container, and a blower or the like is required separately.

In the present invention, rather than heating the entire container from the outside by indirectly heating the human waste, the human waste in the container is directly heated by hot air, and thermal efficiency is excellent, and at the same time, it is intended to accelerate oxidation. The present invention is intended to provide a human waste drying device that can be used.

[Means for solving problems]

In order to achieve the above object, the present invention provides a heat-resistant container that is closed from the outer circumference to store human waste, a plurality of heat storage bodies housed in the container, and hot air supplied into the container. Which has a plurality of blades for stirring the human waste stored in this container and the heat storage body, and a stirring means for guiding the hot air from the hot air blowing means to the bottom of the container, and steam from the top of this container. It is characterized in that it is composed of an exhaust means for sucking and releasing it into the atmosphere.

Here, the stirring means extends from a bottom part inside the container to an upper part outside the container, has a hollow cylindrical drive pipe rotatably supported by opening and closing openings, and is fixed to a lower part of the drive pipe. A plurality of stirring blades that rotate near the bottom of the container to stir the human waste and the heat storage body, and a rotation drive unit that rotates the drive pipe are provided.

The hot air blowing unit includes a blower that sucks and blows the atmosphere, and a heater that is interposed between the blower and the stirring unit and has a heater that heats the air from the blower.

Further, the exhaust means is provided with a catalyst box for heating the steam flowing from the container to remove odor with a catalyst body, and an exhaust fan for discharging the air deodorized by the catalyst box to the atmosphere. is there.

[Operation] In the present invention, hot air is supplied into the container in which the human waste and the heat storage body are heated. At the same time, since the stirring blade is rotated, the human waste is stirred with the heat storage body,
The human excrement always flows while being in contact with the surface of the heat storage body. Therefore, since the heat storage body is heated by the hot air, the heat storage body itself also has heat, and the heat of the heat storage body promotes the drying of the human waste, so that the temperature of the heat storage is increased and the drying of the human waste is extremely quick. Will be. Further, the vaporized vapor enters the catalyst box, is heated again by the heater, passes through the filter, is oxidized by the catalyst, and is then discharged to the atmosphere by the exhaust fan.

Then, by supplying the hot air, the water content of the human excrement is evaporated and the human waste is dried, and finally only the solid component remains and becomes powdery, which enables long-term use.

In this way, hot air is blown into the container to heat only the excrement, and efficient drying can be performed with very little energy loss.

〔Example〕

Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

In this embodiment, a temporary toilet in which the human waste drying device can be moved by a truck or the like will be described.

FIG. 1 is a perspective view showing an example in which the embodiment of the human waste drying device of the present invention is applied to a temporary toilet.

In FIG. 1, a temporary toilet 1 has a box shape made of plastic or reinforced synthetic resin, and a base 2 installed on the ground has a cubic shape. The house 3 with the roof is fixed to this house 3
A door 4 is attached to the front surface of the door so that a user who is opened back and forth can enter the house 3. Inside the temporary toilet 1, a human waste drying device 5 is provided above the base 2, and a toilet 6 for receiving human waste is fixed to the upper surface of the human waste drying device 5. Further, a dust suction / catalyst device 7 is attached to the side surface of the base 2, and a diffusion pipe 8 for diffusing water into the outside air is attached to the upper part of the dust suction / catalyst device 7.

Next, FIG. 2 is a sectional view showing the internal structure of the human waste drying device 5 shown in FIG.

This human waste drying device 5 is assembled into a unit,
The outer side is composed of an outer box 11 formed of a thin steel plate having a cubic shape, the upper part of the outer box 11 is open, and an outer lid 12 is fixed to the upper opening of the outer box 11. . And
The inner space of the outer lid 11 accommodates a drying pot 13 formed of a heat-resistant material such as stainless steel and a thin steel plate, the lower part of which is formed into a spherical curved surface. There are legs 14 between the bottom of the box 11 and
The legs 13 are lifted by the legs 14 to approximately the center of the outer box 11.

The upper portion of the drying pot 13 is open, and the upper opening is covered with the inner lid 15. For this reason, the inner space of the outer box 11 is doubled by the drying pot 13 and the inner lid 15, and the space between the inside of the outer box 11 and the outer side of the drying pot 13 and the outer lid.
Between the 12 and the inner lid 15, insulating materials 16 and 17 such as glass wool are filled. An exhaust pipe 18 that penetrates the outer box 11 and communicates with the outside is connected to the upper side surface of the drying pot 13.

Bearings 1 are provided at the center of the outer lid 12 and the center of the inner lid 15, respectively.
The bearings 9 and 20 are fixed with their axes aligned.
A drive pipe 21 having a hollow interior and penetrating vertically is rotatably supported by 19 and 20. And, a cylindrical tip metal fitting 22 is fixed to the lower end of the drive pipe 21, and a concave portion at the lower end of the tip metal fitting 22 is fitted to a convex portion 23 protruding at the bottom center of the drying pot 13. By this convex portion 23
The lower end of 22 is rotatably held. A ventilation hole 24 penetrates through the center of the tip fitting 22, and the lower portion of the ventilation hole 24 is branched into left and right to form a communication hole 25, which communicates with the internal space of the drying pot 13. Further, four stirring blades 26 having a shape close to the curved surface of the bottom of the drying pot 13 are attached to the outer periphery of the tip fitting 22 at 90 degree intervals. This tip fitting 22
The planar arrangement of the stirring blade and the stirring blade 26 is shown in FIG.

A plurality of spherical heat storage bodies 27 made of ceramics such as alumina (aluminum dioxide) or steel such as stainless steel are housed inside the drying pot 13. Further, between the upper part of the drying pot 13 and the toilet bowl 6, an introducing pipe 28 is inserted vertically through the outer lid 12 and the inner lid 15, and the introducing pipe 28 is inserted into the toilet bowl 6. It is connected and the human waste is put into the drying pot 13.

An upper metal fitting 29 is connected to the upper end of the drive pipe 21 and above the outer lid 12, and a ventilation port 30 penetrating vertically is formed through the upper metal fitting 29. Metal fittings
At the upper end of 29, a connecting sleeve fixed to the human waste drying device 5
31 is connected. A vent hole 32 is formed inside the connecting sleeve 31, air can be sent into the drying pot 13 through the vent holes 32 and 30, and the upper fitting 29 can freely rotate with respect to the connecting sleeve 31. You can

A worm gear 33 is fixed to the outside of the upper fitting 29, a worm 34 is meshed with the worm gear 33, and a sprocket wheel 35 is fixed to the worm 34. The chain 36 is wound around the sprocket wheel 35, and the chain 36 is wound around the sprocket wheel 37. This sprocket wheel 37
Is rotated by a motor 38 fixed to the upper portion of the outer lid 12, and the output of the motor 38 is transmitted to the worm 34 via the sprocket wheel 37, the chain 36, and the sprocket wheel 35.

Next, FIG. 4 shows a state of connection between the human waste drying device 5 and peripheral devices.

A blower pipe 41 is connected to the connecting sleeve 31,
A heater 42 is connected to the blower pipe 41. The heater 42 has a hollow inside, and has a structure in which a heater 43 is housed inside. A blower 44 is connected to the heater 42, and a motor is provided inside the blower 44.
45 and a fan 46 driven by this motor 45 are housed.

Next, a catalyst box 47 is connected to the exhaust pipe 18,
A reheat heater 48 is provided in the catalyst box 47. A filter 49 is attached to the center of the inside of the catalyst box 47, and a catalyst body 50 made of platinum or platinum is fixed to the lower part of the filter 49. Also, this catalyst box 47
An exhaust fan 51 is connected to the lower part of the exhaust fan 51, and a motor 52 and a fan 53 driven by the motor 52 are connected in the exhaust fan 51. The output of the exhaust fan 51 is connected to the diffusion pipe 8.

Next, the operation of this embodiment will be described.

First, a person who intends to use the toilet enters the temporary toilet 1 and excretes it toward the toilet 6. The excreted human waste falls from the toilet 6 through the introduction pipe 28 and is temporarily accumulated in the drying pot 13. Then, when it is stored in the drying pot 13 to a certain amount or more, the heaters 43 and 48 are energized to heat,
Operate the motors 38, 45, 52 respectively. Then, the motor 45 drives the fan 46, and the air from the outside is blown from the blower 44 into the heater 42. Since the heater 43 is provided in the heater 42, the air is heated to about several hundreds of degrees and transmitted to the blower pipe 41.

Then, the air heated by passing through the blower pipe 41 is driven by the drive pipe 21 through the communication ports 32 and 30 of the connection sleeve 31.
Will be introduced in. Next, this air is a communication hole from the ventilation hole 24.
It will flow through 25 and will be jetted from the communication hole 25 in the lower part of the drying pot 13. Therefore, the air heated by the heater 43 is ejected from the communication hole 25 to heat the human waste stored in the drying pot 13. This communication hole 25
The hot air blown out heats the excrement in the drying pot 13, and at the same time, this heat is stored in the drying pot 13 by the heat storage body 27.
Is also heated, and the heat storage body 27 is also heated at the same time.

And since the motor 35 is operating,
34, the drive pipe 21 is rotated through the worm gear 33, and the stirring blade 26 connected thereto simultaneously stirs the human waste in the drying pot 13 and at the same time also the heat storage body 27, so that the surface of the heat storage body 27 is constantly Stir so that the human waste comes into contact. For this reason, the heat stored in the heat storage body 27 is transferred to the human waste from the surface thereof to help the water in the human waste to evaporate.
In this way, the temperature of the whole human waste is uniformly increased by the stirring by the stirring blades 26, and since the heat storage body 27 itself also has heat, the water content of the human waste is gradually evaporated.

At the same time, the motor 52 in the exhaust fan 51 is operating, and the fan 53 is rotated so that the air in the evaporator 13 is discharged toward the exhaust pipe 18 via the exhaust pipe 18 and the catalyst box 47. . Therefore, the saturated water vapor evaporated in the drying pot 13 is sucked toward the catalyst box 47 through the exhaust pipe 18. Since the reheat heater 48 is heated in the catalyst box 47, the temperature of the saturated steam is further raised by contacting the reheat heater 48, and fine dust and dirt are removed by the filter 49 to remove the catalyst body.
Will be in contact with 50. Since the saturated steam is oxidized by the catalyst body 50, components causing bad odor such as ammonia and bromine in the flowing saturated steam are oxidized and changed to be odorless. For this reason, when it is being evaporated in the drying pot 13, a part of the component is evaporated at the same time to generate a bad odor, but it is reheated in the catalyst box 47 and the catalyst body 50 is heated.
The odor will be removed by being oxidized by. Then, the air containing the odorless saturated steam is discharged into the atmosphere from the diffusion pipe 8 through the exhaust fan 51.

By continuing such an operation, most of the moisture contained in the human waste stored in the drying cauldron 13 is vaporized, and the vaporized saturated water vapor becomes odorless and is released to the atmosphere. As a result, water can be diffused into the atmosphere in a hygienic manner. Then, finally, among the components of human waste, a small amount of the solid component that cannot be evaporated remains in the drying pot 13, and the water occupying most of the volume thereof is evaporated.

Heater if all the human waste in the drying pot 13 is dried
The energization of 43, 48 is stopped, the operation of the motors 38, 45, 52 is stopped, and the operation of the drying process is ended. And
It will wait for the next excrement to be excreted and processed.

Next, FIG. 5 shows another embodiment of the present invention.
For the common parts in this embodiment, the reference numerals and names in FIG. 4 are used as they are.

A hot air pipe 55 is inserted into the inside of the drying pot 13 so as to penetrate through the inner lid 15. The tip of the hot air pipe 55 is a nozzle 56, and the nozzle 56 is the stirring blade 26.
It is located very close to the upper edge of the. A heater 57 is connected to the hot air pipe 55, and a heater 58 is housed in the heater 57. A blower pipe 59 is connected to the heater 57, and a blower 60 is connected to the blower pipe 59. A motor 61 is installed in the blower 60.
A fan 62 rotated by the motor 61 is housed therein, and the fan 62 can send the outside air to the heater 57 by pressure.

Next, a case where the human waste stored in the drying pot 13 is dried in this embodiment will be described.

First, similarly to the above, the motors 38, 52, 61 are driven and the heaters 58, 48 are energized. Then, the air from the outside is passed by the fan 62 through the blower pipe 59, the heater 58, and is ejected from the nozzle 56 through the hot air pipe 55. At this time, the outside air is heated by coming into contact with the heater 58 and heated to a temperature of several hundreds of degrees, and the hot air is ejected from the nozzle 56. Then, the raw sewage is stored in the drying pot 13, and the hot air from the nozzle 56 comes into contact with the raw sewage, whereby the entire interior of the drying pot 13 is heated. At this time, the hot air ejected from the nozzle 56 also warms the heat storage body 27 at the same time, and the temperature of the heat storage body 27 also rises.

Further, since the drive pipe 21 and the stirring blade 26 are rotated by the motor 38 as described above, the human waste stored in the drying pot 13 and the heat storage body 27 are stirred by the stirring blade 26, and the temperature of the entire human waste is adjusted. The temperature rise of the human waste is accelerated by bringing the human waste into contact with the surface of the heat storage body 27 whose temperature has risen.

When the motor 52 is operating, the fan 53 sucks the air in the drying pot 13 and the saturated vapor containing the malodor is heated by the reheating heater 48, and the catalyst body is heated.
When it is oxidized by 50, it becomes a foul odor and is released to the outside.

〔The invention's effect〕

As described above, in the human waste drying device according to claim 1, since it is configured as described above, in comparison with the conventional case where the excreted human waste and the like had to be processed by suctioning with a vacuum car or the like, By evaporating water, which is a major component of human waste, it can be easily treated in a temporary place, a vehicle, a ship, etc., and extremely hygienic treatment can be performed.

Further, in the human waste drying device according to the first aspect, since the whole human waste can be heated by blowing hot air into the container instead of heating the container storing the human waste from the outside, thermal efficiency is good, and Evaporation can be performed quickly.

In the stirring means according to the second aspect, it is possible to surely stir, and it is possible to heat the human waste well by sending hot air to the bottom.

Since the blade of the stirring means according to the third aspect is fixed to the drive pipe at the bottom of the container, the human waste and the heat storage body can be reliably stirred.

Since the drive pipe of the stirring means according to claim 4 is rotatably fixed to the convex portion provided at the center of the bottom of the container, the drive pipe does not shake.

In the hot-air blowing unit according to the fifth aspect, the air can be sucked and heated to give hot air into the container.

In the exhaust means according to the sixth aspect, it is possible to absorb the vapor generated in the container, remove the odor and the like, and release it to the atmosphere.

In the catalyst box according to the seventh aspect, the oxidation of steam can be improved, and odor can be removed.

Since the catalyst according to claim 8 is made of a material that promotes oxidation of steam, the oxidation of steam is remarkable.

[Brief description of drawings]

FIG. 1 is an external perspective view of a temporary toilet showing an example in which the human waste drying device of the present invention is applied to a temporary toilet, FIG. 2 is a sectional view showing the internal structure of the human waste processing device of the present invention, and FIG. FIG. 4 is a plan view showing the mounting state of the stirring blade of FIG. 4, FIG. 4 is an explanatory view showing the situation of the drying treatment, and FIG. 5 is an explanatory view showing another embodiment of the present invention. 13 …… Drying pot, 15 …… Inner pot, 21 …… Drive pipe, 26 ……
Stirring blade, 24 ... Ventilation hole, 25 ... Communication hole, 26 ... Stirring blade, 27 ... Heat storage body, 42, 57 ... Heater, 43, 58 ... Heater.

Claims (7)

[Claims] 1. A heat-resistant container, which is closed from the outer envelope and stores human waste, a plurality of heat storage bodies housed in the container, and a hot air blowing unit for generating hot air to be supplied into the container. , Agitating means having a plurality of blades for agitating the human waste stored in this container and the heat storage body, and introducing the hot air from the hot air blowing means to the bottom of the container, and sucking vapor from the top of this container and discharging it into the atmosphere A human waste drying device, comprising: 2. The agitating means extends from the bottom of the container to the upper part outside the container, and has a hollow cylindrical drive pipe rotatably rotatably provided with upper and lower openings, and a lower part of the drive pipe. 2. The human waste drying device according to claim 1, further comprising a plurality of stirring blades that are fixed and that rotate near the bottom of the container to stir the human waste and the heat storage body, and a rotation drive unit that rotates the drive pipe. . 3. The human waste drying device according to claim 2, wherein the lower end of the drive pipe is rotatably held by a convex portion projecting toward the center of the bottom of the container. 4. A heat-resistant container, which is closed from the outer envelope and stores human waste, a plurality of heat storage bodies housed in the container, and a hot air blowing unit for generating hot air to be supplied into the container. , A hot air pipe extending from the outside to the inside of the container for transmitting the hot air from the hot air blowing means, and a nozzle at the tip of the hot air pipe with the nozzle toward the bottom of the container, and a plurality of agitating the human waste and heat accumulator stored in the container A human waste drying device comprising a stirring means having blades and an exhaust means for sucking vapor from the upper part of the container and discharging the vapor into the atmosphere. 5. The hot air blowing means comprises a blower that sucks and blows the atmosphere, and a heater that is interposed between the blower and the stirring means and that has a built-in heater that heats the air from the blower. The human waste drying device according to claim 1 or 4. 6. The exhaust means comprises a catalyst box for heating the vapor flowing from the container to remove odor with a catalyst body, and an exhaust fan for discharging the air deodorized by the catalyst box to the atmosphere. The human waste drying device according to claim 1 or 4, characterized in that. 7. The human waste drying device according to claim 6, wherein the catalyst box has therein a reheat heater, a filter, and a catalyst body in this order from the upstream side of the flow of steam.