JPH10272438A - Cassette supply type pyrolysis method for industrial waste and cassette supply type pyrolysis furnace for implementing the method - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to provide an industrial waste that can easily carry in and carry out industrial waste and that can uniformly heat industrial waste in a pyrolysis chamber. An object of the present invention is to provide a cassette supply type pyrolysis method and a cassette supply type pyrolysis furnace for performing the method. The present invention provides a refilling step for refilling industrial waste outside a pyrolysis furnace 10 into a cassette 20 from which a liquid material can flow out, and a refilling cassette 20. A loading step of removably inserting into and removing the thermal decomposition chamber 11 disposed inside the outer wall 13 having heat insulation to seal the outer wall 13 and the thermal decomposition chamber 11; A pyrolysis step of pyrolyzing industrial waste under reduced pressure, and an outer wall 1 after the pyrolysis is completed.
3 and an unloading step of opening the thermal decomposition chamber 11 and taking out the cassette 20. Further, in the pyrolysis process, the cassette 20 is pyrolyzed while rotating in the pyrolysis chamber 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette supply type pyrolysis method for industrial waste, in which a cassette containing industrial waste is supplied to a pyrolysis furnace to perform a pyrolysis treatment, and a cassette supply type thermal decomposition method for implementing the method. It relates to a decomposition furnace.

[0002]

2. Description of the Related Art At present, the amount of industrial waste such as resin-based waste, garbage, medical waste and used disposable diapers from cities, factories, general households, hospitals and the like is extremely large. Has become. And the treatment of these industrial wastes
Each is performed in the following manner.

[0003] First, there is an incineration treatment. This is a method in which each industrial waste is incinerated at around 1000 degrees Celsius in a combustion furnace for disposal. This processing is the most general processing method.

[0004] As a second processing method, there is a dumping processing. This is a processing method in which each industrial waste is subjected to a volume reduction treatment such as finely pulverizing and compressing, and then stored in a container, a bag, or the like, and dumped in a dumping land or buried in a landfill.

On the other hand, if industrial waste containing a chlorine-based polymer compound such as vinyl chloride is treated at a temperature exceeding the thermal decomposition temperature of vinyl chloride, hydrogen chloride gas is generated. Since this causes pollution, the temperature below the thermal decomposition temperature (150 ° C
Under the following conditions, the melt-solidification treatment was performed. Also, the melting point of vinyl chloride (120 ° C.) such as polypropylene (melting point 180 ° C.) and polyethylene terephthalate (melting point 250 ° C.)
(-130 ° C.), the treatment was carried out by heating to these melting points and charging and recovering calcium chloride (eg, slaked lime) into the hydrogen chloride generated at that time.

However, in the case of the first incineration treatment, there is a problem that toxic gas, black smoke and dust are generated, and pollutants are scattered around the incineration treatment plant. In addition, there is a problem that the incineration apparatus is seriously damaged due to the generation of high heat and high-temperature gas by incineration. Further, there is a problem that harmful substances are left as residues, and harmful substances are included in fly ash and generated gas. In this case,
In order to collect the generated gas and dust, a method of spraying water into the exhaust gas in a shower shape may be used. This method has a problem in that since the water is sprayed in a shower shape, the treatment cannot be performed under reduced pressure, and the odor leaks from the exhaust gas.

Further, in the case of the second dumping process, there is a problem that secondary pollution such as the natural destruction of the dumping land itself and the contamination of groundwater by waste occurs. In particular, when processing industrial waste containing hydrogen chloride, highly toxic, teratogenic, and highly carcinogenic organic hydrogen chloride compounds such as dioxin and polychlorinated dibenzofuran are generated, and their impact on ecology is also a problem. Was.

In view of the above problems, the present applicant has proposed a method and an apparatus for dehydrochlorinating industrial waste, which can appropriately and efficiently treat industrial waste without causing pollution, and furthermore, an organic matter. Of a method for treating industrial waste containing, and applied for a patent.

[0009]

FIG. 13 shows an industrial waste pyrolysis apparatus invented by the present applicant. An industrial waste pyrolysis treatment apparatus 1 is roughly composed of a pyrolysis furnace 10,
A gas diffusion device 2, a tar removal device 3, a treatment tank 4,
It has a neutralization tank 5, a decompression pump 6, and a combustion deodorization device 7.

A pyrolysis chamber 11 provided in a pyrolysis furnace 10
The industrial waste put into the furnace is decompressed to below atmospheric pressure by the decompression pump 6 and heated from the bottom of the pyrolysis chamber 11. By heating, industrial waste is dehydrated and pyrolyzed. The gas generated by the thermal decomposition recovers harmful substances in the gas diffusion device 2, the tar removal device 3, and the neutralization tank 5, respectively. The finally remaining gas is burned in the combustion deodorizing device 7 to be thermally decomposed.

Most of the pyrolyzed industrial waste contains only carbon components. Subsequent processing can be easily performed. Industrial waste can be treated safely and without pollution by using the thermal decomposition treatment apparatus.

However, when the industrial waste is directly injected into the thermal decomposition chamber 11 and subjected to the thermal decomposition treatment, there are the following problems. Since the directly input industrial waste is piled up in the pyrolysis chamber 11, it takes time to raise the temperature of the central portion to the temperature in the pyrolysis chamber 11. For this reason, when a large amount of industrial waste is subjected to thermal decomposition treatment, the treatment time becomes long. Therefore, in order to treat a large amount of industrial waste at an early stage, it is necessary to carry out thermal decomposition treatment in several small portions.
In this case, a residue remains in the pyrolysis chamber 11 every time the pyrolysis process is completed. Therefore, the next industrial waste cannot be put in unless the residue is removed from the pyrolysis chamber 11. However, the residue adheres to the inside of the thermal decomposition chamber 11 and is difficult to remove, and since it is dry, fly ash and dust are generated, so that the removal operation is difficult.

[0013] In addition, vinyl chloride has a drawback that when burned, only the surface is carbonized and heat is not transmitted to the inside at all, so that a large amount of unburned portions remains.

An object of the present invention is to provide a cassette supply type pyrolysis method for industrial waste and a cassette supply type pyrolysis furnace for carrying out the method, which can easily carry in and out industrial waste. is there.

It is another object of the present invention to provide a cassette supply type pyrolysis method for industrial waste capable of uniformly heating industrial waste in a pyrolysis chamber and a cassette supply type pyrolysis furnace for implementing the method. That is.

It is a further object of the present invention to provide a cassette supply type pyrolysis method for industrial waste and a cassette used in a cassette supply type pyrolysis furnace for performing the method.

[0017]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a refilling step of refilling industrial waste outside a furnace into a cassette from which a liquid material can flow out, and an insulating property of the refilled cassette. A loading step of removably inserting into and removing from the pyrolysis chamber disposed inside the outer wall having the outer wall and the pyrolysis chamber sealed; An industrial waste cassette supply type pyrolysis method comprising: a pyrolysis step of pyrolyzing waste; and an unloading step of opening an outer wall and a pyrolysis chamber to take out a cassette after the pyrolysis is completed. provide.

According to a second aspect of the present invention, in the method of the first aspect of the present invention, the pyrolysis step comprises the step of forming the cassette so that a liquid material can flow out and the step of forming the cassette. It is characterized by pyrolysis while rotating in a pyrolysis chamber.

According to a third aspect of the present invention, in the industrial waste cassette-supplying pyrolysis method according to the second aspect, a plurality of partition members extending radially around the rotation axis extending in the horizontal direction. And divided into a plurality of sections.

According to a fourth aspect of the present invention, there is provided a method for pyrolysis of industrial waste by a cassette supply method according to any one of the first to third aspects, wherein a small-capacity cassette is prepared for each type of industrial waste. Then, a small amount of each type of industrial waste is stored in each cassette, and a large number of cassettes are put in and taken out of the furnace in a relatively short cycle.

According to a fifth aspect of the present invention, in the method of the fourth aspect, the refilling of the industrial waste into small-capacity cassettes for each type of industrial waste is carried out adjacent to the furnace. It is characterized in that it is performed on a plurality of arranged cassette tables.

According to a sixth aspect of the present invention, in the industrial waste cassette supply type pyrolysis method according to any one of the first to third aspects, a plurality of types of industrial wastes can be mixed and stored. A large-capacity cassette is prepared, a plurality of types of industrial waste are stored in large quantities in the large-capacity cassette, and a small number of cassettes are put in and taken out of the furnace at a relatively long cycle.

According to a seventh aspect of the present invention, there is provided the industrial waste cassette supply type pyrolysis method according to the fourth or sixth aspect, wherein the cassette is inserted into and removed from the furnace by a robot installed adjacent to the furnace. It is characterized by the following.

According to an eighth aspect of the present invention, there is provided the industrial waste cassette supply type pyrolysis method according to the fifth aspect, wherein the cassette is put in and out of the furnace and the industrial waste is refilled in the plurality of cassette tables. Characterized in that it is performed by a robot installed adjacent to the robot.

According to a ninth aspect of the present invention, there is provided a pyrolysis chamber which is capable of discharging a liquid material capable of refilling industrial waste outside the furnace, and which is housed so that the cassette can be taken in and out, in a sealed state and under reduced pressure. A thermal decomposition chamber for thermally decomposing the industrial waste, an insulating outer wall surrounding the thermal decomposition chamber so that the cassette can be taken in and out, heating means for heating the thermal decomposition chamber, and a cassette And a support mechanism for supporting the air in the pyrolysis chamber in the air.

According to a tenth aspect of the present invention, in the industrial waste cassette supply type pyrolysis furnace according to the ninth aspect, the cassette has a structure capable of flowing out a liquid material, and the cassette is formed in a pyrolysis chamber. And a rotation drive mechanism for rotating by (1).

[0027] According to an eleventh aspect of the present invention, in the industrial waste cassette supply type pyrolysis furnace according to the ninth or tenth aspect, a plurality of cassette tables are disposed adjacent to the furnace, and a spare cassette is provided. The refilling of the industrial waste into is carried out on this cassette table.

According to a twelfth aspect of the present invention, there is provided the industrial waste cassette supply type pyrolysis furnace according to the ninth or tenth aspect, wherein a robot is provided adjacent to the furnace for moving a cassette into and out of the furnace. The loading and unloading of the cassette into and out of the furnace is performed by a robot.

According to a thirteenth aspect of the present invention, there is provided the industrial waste cassette supply type pyrolysis furnace according to the eleventh aspect,
A robot for transferring a cassette is installed adjacent to both the furnace and the cassette table, and the cassette is moved in and out of the furnace and transferred to a plurality of cassette tables by the robot.

According to a fourteenth aspect of the present invention, there is provided a cassette used in a cassette supply type pyrolysis furnace for industrial waste, comprising: a rotating shaft extending in a horizontal direction; and a plurality of partitions extending radially about the rotating shaft. Material, a tubular body through which a liquid surrounding the outer periphery of the partition material can flow out, and one part for each of a plurality of sections partitioned by the partition material and the tubular body, which are formed in a part of the tubular body. And a lockable door, the cassette being used in an industrial waste cassette-supplying pyrolysis furnace.

According to a fifteenth aspect of the present invention, in the cassette used in the industrial waste cassette supply type pyrolysis furnace according to the fourteenth aspect, the cylindrical body is a cylinder or a regular polygonal cylinder. I do.

[0032] The invention according to claim 16 is a cassette used in a cassette supply type pyrolysis furnace for industrial waste, wherein the central axis is oriented in a vertical or horizontal direction, and liquid is not passed around the central axis. Industrial waste, comprising a surrounding wall made of a non-sealing material, and a non-hermetic lid formed at a position where the liquid inside does not leak when storing the liquid industrial waste. Provided is a cassette used in a cassette supply type pyrolysis furnace.

[0033]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an outline of an apparatus for thermally decomposing industrial waste will be described (see FIG. 13). The industrial waste thermal decomposition treatment apparatus 1 is generally composed of a thermal decomposition furnace 10.
, Gas diffusion device 2, tar removal device 3, processing tank 4
, A neutralization tank 5, a decompression pump 6, and a combustion deodorizing device 7.

The pyrolysis furnace 10 is an apparatus for heating and thermally decomposing industrial waste. First, pyrolysis furnace 1
The industrial waste is put into the pyrolysis chamber 11 provided in the chamber 0. Next, the thermal decomposition chamber 11 is sealed, and the pressure in the thermal decomposition chamber 11 is reduced to the atmospheric pressure or lower by the vacuum pump 6. Then, the pyrolysis chamber 11 is heated from the outside in an oxygen-free state. Pyrolysis chamber 1
By reducing the pressure inside 1, the toxic gas is prevented from flowing out. Further, by setting the oxygen-free state, chlorine gas generated by thermal decomposition can be prevented from being combined with oxygen in the thermal decomposition chamber 11 to generate highly toxic dioxin. By heating, the temperature in the thermal decomposition chamber 11 rises. Once, 1
The water contained in the industrial waste is dehydrated by maintaining the temperature at about 00 to 160 ° C. After the dehydration is completed, the pyrolysis chamber 11 is heated to a predetermined pyrolysis temperature to pyrolyze the industrial waste.

The gas generated by the thermal decomposition is collected in the gas diffusion device 2. The gas diffusion device 2 is a device for separating predetermined components in a gas generated by thermal decomposition. The gas diffusion device 2 blows a gas into a water tank having a stirring device filled with a predetermined solution to dissolve and collect the components of the gas in the solution. By filling the water tank with water, chlorine gas, which is a water-soluble component of the gas, can be separated. Further, the water in the water tank becomes hydrochloric acid due to the chlorine gas dissolved in the water tank. The hydrochloric acid whose concentration has reached a certain level or more is discharged to the recovery tank 4. The discharged hydrochloric acid is neutralized with an alkaline substance such as sodium hydroxide, calcium hydroxide, etc., and recovered as harmless sodium chloride and calcium chloride.

The tar removing device 3 is a device for separating tar contained in the pyrolysis gas. The tar removing device 3 collects tar floating on the water surface of the water tank of the diffusion device 2. The neutralization tank 5 blows a pyrolysis gas into a water tank filled with a predetermined solution to dissolve and recover the components in the solution. A water-soluble gas that could not be completely recovered by the gas diffusion device 2 may be recovered, or a solvent capable of dissolving and recovering another specific gas may be added. Since the pyrolysis gas finally left is a hydrocarbon-based gas such as methane gas or ethane gas, it is self-combusted by the combustion deodorizer 7 to thermally decompose odor components.

Next, a cassette supply type pyrolysis method for industrial waste according to the present invention and a cassette supply type pyrolysis furnace for carrying out the method will be described based on a preferred embodiment shown in the drawings.

FIG. 1 is a perspective view of an embodiment of the industrial waste cassette supply type pyrolysis furnace according to the present invention. FIG.
FIG. 2 is a plan view of the industrial waste cassette supply type pyrolysis furnace of FIG. 1. FIG. 3 is a front view of the industrial waste cassette supply type pyrolysis furnace of FIG. FIG. 4 is a side view of the industrial waste cassette supply type pyrolysis furnace of FIG. FIG. 5 is a schematic diagram of a cassette supporting device and a driving device of a cassette supply type pyrolysis furnace for industrial waste.

The configuration of the industrial waste cassette supply type pyrolysis furnace according to the present invention will be described. The cassette supply type pyrolysis furnace is roughly composed of a pyrolysis furnace 10 and a cassette 20.
, A transfer robot 30 and a cassette carriage 40.

The thermal decomposition furnace 10 is for thermally decomposing industrial waste by heating it in an oxygen-free state in a vessel reduced in pressure to below atmospheric pressure. As shown in FIG. 1, the thermal decomposition furnace 10 is a heating means for heating the thermal decomposition chamber 11, an outer wall 13 provided around the thermal decomposition chamber 11, and the thermal decomposition chamber 11. Burner 17 and cassette 2 described later
0 in the pyrolysis chamber 11 to support it in the air.
9. The cassette 20 supported in the air
Has a rotation drive mechanism 16 for rotating the.

The air heated by the burner 17 flows from the bottom of the pyrolysis chamber 11 to the periphery and rises on the side of the pyrolysis chamber 11. Thereby, the inside of the thermal decomposition chamber 11 is heated.
The thermal decomposition chamber 11 may be made of any material as long as it is excellent in corrosion resistance, heat resistance and heat conductivity.

The outer wall 13 is provided to prevent internal heat from being released. For this reason, the outer wall 13 has a heat insulating structure. It suffices that the outer wall surface can be insulated from the inside of the high-temperature furnace to such an extent that it can be touched directly by hand.
Further, since the temperature of the upper part of the pyrolysis furnace 10 and the vicinity of the burner 17 is likely to be high, the heat insulating effect may be higher than other parts.

The burner 17 is provided at the bottom of the pyrolysis chamber 11. The burner 17 burns propane gas, city gas, heavy oil, etc. to heat the furnace. Of course, you may heat using electricity.

One embodiment of the support mechanism 19 is shown in FIG.
The supporting mechanism 19 includes a pair of supporting columns 19a, a pressing shaft 19b rotatably supported by one supporting column 19a and provided to be movable in the axial direction, and another supporting column 19a.
A driving shaft 19c rotatably supported by the pressing shaft 19b;
And a cylinder 19d as a pressing means for pressing the rotary shaft of the cassette 20 against the rotating shaft of the cassette 20. The above-mentioned pair of support columns 19a are arranged so that the bearing portion is not affected by heat. It is preferable to provide a chamfer at the tip of the pressing shaft 19b and the driving shaft 19c so as to easily fit the rotating shaft 28 of the cassette 20. Furthermore, the tip of the drive shaft 19c is shaped to fit the cassette 20 and transmit a driving force for rotation. The cylinder 19d moves the pressing shaft 19b in the axial direction.

The cassette 20 is carried into the pyrolysis chamber 11 by a transfer robot 30 described later. The transfer robot 30 stops so that the rotating shaft 28 of the cassette 20 comes to the front position of the pressing shaft 19b and the driving shaft 19c. Then, the cylinder 19d is operated, and the pressing shaft 19b presses the rotating shaft 28 of the cassette 20 against the driving shaft 19c, thereby fixing the cassette 20.

The driving mechanism 16 generally has a pulley 16a, a pulley 16b, a belt 16b, and a motor 16d as driving means. Pulley 16a
Is attached to the drive shaft 19a. A belt 16b is hung between the pulley 16a and the pulley 16b. Mo
The puller 16d drives the pulley 16b to rotate. Then, the pulley 16a is rotated via the belt 16b to drive the drive shaft 19a.
a rotates. As a result, the cassette 20 rotates in the pyrolysis chamber 11.

The cassette 20 is a container for storing industrial waste and putting it into a pyrolysis furnace. Cassette 20
As shown schematically in FIG. 6, a rotary shaft 28 is provided so as to penetrate the cassette 20. On both sides of the rotating shaft, a pair of side members 21 are provided perpendicular to the rotating shaft 28. Then, along the periphery of both side members 21,
Are provided. The body member 25 has a lid 23 hinged so that a part thereof can be opened and closed. Lid 23
Is provided with a hook 24a. The hook 24a is attached to a stopper 24 provided at a portion corresponding to the body member 25. Thereby, the lid 23 is closed.

The side member 21 is not limited to a circular shape as shown in FIGS. 6 to 11, but may be a regular polygon such as a square or an octagon in accordance with the industrial waste to be put into the side member. In addition, a pair of pins 22 are provided at predetermined intervals on the side surfaces of the pair of side members 21 and directly above the rotation shaft 28. The pin 22 is hooked on an arm by a transfer robot described later to
0 is carried. Since the cassette 20 can be supported at a lower position than when the rotation shaft 28 is hooked, the cassette 20 can be stably transported.

As the above-mentioned trunk member 25, one that is optimal for the characteristics and form at the time of thermal decomposition of industrial waste is used. Further, a partition member extending in the radial direction about the rotation shaft 28 of the cassette 20 and a lid 23 may be provided for each of the sections divided by the partition member, and the inside of the cassette 20 may be divided into a plurality of parts. By dividing into small quantities, industrial waste can be treated in a relatively short cycle.

The embodiment of the cassette 20 is shown in FIGS.
Shown in 6 to 10 are views showing an embodiment of a cassette for charging solid industrial waste. FIG. 11 and FIG. 12 are diagrams showing an embodiment of a cassette for charging liquid industrial waste.

A characteristic of the cassette 20 for charging solid industrial waste is that a gap for discharging the residue is provided in the body member 25. In forming the gap, a net 25a may be used for the body member 25 as shown in FIGS. In this case, it is preferable to provide the reinforcing member 26 to secure the strength of the cassette 20. Further, as shown in FIG. 8, a steel material 25b such as a bar or a type rope may be provided continuously around the side member 21 at a predetermined interval.

Further, as shown in FIG. 9, a plate member 25c having a plurality of long holes 25d in the body member 25 may be used. Of course, many holes may be provided instead of the long hole 25d. Here, the cross-sectional shape of the long hole 25d is preferably a tapered shape from the outside of the cassette 20 toward the center of the rotation axis as shown in FIG. This makes it easier for the industrial waste to hit the inner corner 25e of the cassette 20 and is effective in crushing the industrial waste. Further, the elongated hole 25d can be made difficult to close by expanding in a tapered shape. Incidentally, in order to crush harder industrial waste, as shown in FIG.
A protrusion 25 h may be provided inside the fifth member 5. Further, one or more steel balls may be put into the cassette 20 together with the industrial waste. When the cassette 20 is rotated, the steel balls and the industrial waste are stirred, so that the industrial waste is crushed by the impact of the steel balls.

A characteristic of the cassette 20 for charging the liquid industrial waste is that the body member 25 is made of a material that is impermeable to liquid so that it does not leak even when the liquid is charged, and the gas generated by the thermal decomposition is used. It has an exhaust port for discharging the cassette 20 to the outside.

As shown in FIG. 11, a body member 25 having a watertight structure is provided.
And an exhaust port 2 provided in the side member 21 in the vicinity of the rotating shaft.
1a. It is sufficient if one exhaust port 21a is provided, but it may be provided on both sides. Industrial waste is supplied from the exhaust port 21a to a level slightly below the exhaust port 21a. During the pyrolysis, the industrial waste does not leak even if the cassette 20 is rotated. Then, the gas generated by the thermal decomposition is discharged from the exhaust port 21a. Note that the side member 21 provided with the exhaust port is preferably detachable from the cassette 20. The side member 21 is fixed to the body member 2 by bolts 21c.
5 is attached. By removing the side member 21, the internal residue can be easily removed. Also, cassette 2
In order to promote the thermal decomposition of the industrial waste in the cassette 20, one or more stirring plates 2 are provided inside the body member 25 of the cassette 20.
5 should be provided.

As shown in FIG. 12, the body member 25 may be a roll member 25j. The roll member 25j continuously bends a plate material of a predetermined length starting from one end as a starting point, and sneaks a predetermined length inside the starting point of the plate material while opening a predetermined gap along the inside from the starting point of the plate material. It is formed. Industrial waste is introduced from an entrance 25k formed by the roll member 25j. The cassette 20 rotates in the direction of the arrow shown in FIG. If you rotate in the direction of the arrow,
The industrial waste inside the cassette 20 is agitated without flowing out. Conversely, when the cassette 20 is rotated in the direction opposite to the arrow, the industrial waste is rolled by the roll member 25j.
It is discharged to the outside through the inner wall of the. That is, the thermal decomposition chamber 1
When the cassette 20 is rotated in the direction of the arrow during the pyrolysis in step 1 to discharge the residue remaining after the pyrolysis is completed, the cassette 20 is rotated in the direction opposite to the arrow to remove the residue. Let it drain.

The transfer robot 30 automatically attaches / detaches to / from the cassette carriage 40, carries in / out the thermal decomposition furnace 10, and transports the cassette 20 between the cassette carriage and the thermal decomposition furnace. The transfer robot 30 schematically includes a pair of track rails.
The vehicle includes a wheel 38, a traveling section 35, a turning section 33, and a pair of arms 37.

The traveling section 35 has a drive mechanism (not shown) for traveling on the track rail 38.
Further, it has a position detecting mechanism (not shown) for detecting its own position on the track rail 38.

The turning section 33 turns about 90 degrees in the range of the arrow shown in FIG. 2 about a turning axis (not shown) provided vertically on the traveling section 35. Further, the turning section 33 has a lifting mechanism (not shown) for raising and lowering the arm 37 up and down.

The pair of arms 37 are attached to the elevating mechanism of the revolving section 33 at intervals slightly wider than the width of the cassette 20. A cassette 2 is provided at the tip of each arm 37.
A pair of grooves 37 for engaging the pins 22 provided on the
a is provided. The cassette cart 40 is a cassette 2
It is for waiting for 0 and refilling industrial waste. The cassette carriage 40 generally has a carriage main body 42 and a pair of rails 48.

The bogie main body 42 is a rail 4
8 has wheels 47 for moving it. Also,
A pair of support arms 45 for supporting the cassette 20 are provided vertically on the carriage body 42. Support arc
The drums 45 are provided at intervals slightly wider than the width of the cassette 20. The upper end of the support arm 45 is provided with a receiving portion 45a for supporting the rotating shaft 28 of the cassette 20. The shape of the receiving portion 45a may be any shape as long as the rotating shaft 28 of the cassette 20 can be supported from above.
In the present embodiment, a V-shape is illustrated, but a U-shape may be used.

The rail 48 has a standby position stopper 4 at both ends.
8a and a carry-out position stopper 48b. As shown in FIG. 1, at the standby position where the bogie main body 42 is located on the side of the standby position stopper 48a, refilling of the industrial waste into the cassette 20 is mainly performed. The operation of refilling industrial waste can also be automated by using a robot. When the worker performs the operation, it is preferable to provide the scaffold 50 on the standby position stopper side. At the unloading position where the bogie main body 42 is located on the unloading position stopper 48b side, the transfer and reception of the cassette 20 are performed between the transport robot 30 and the bogie main body 42.

In this embodiment, a plurality of cassette carriages 40 are provided along the track rail 38 of the transfer robot 30. Thereby, the efficiency of the refilling operation is improved, and it is possible to cope with nighttime automatic operation.

Next, a description will be given of a cassette supply type pyrolysis method for industrial waste according to the present invention. The industrial waste cassette supply type pyrolysis method according to the present invention comprises a refilling step of refilling industrial waste outside the furnace, and loading and reloading the refilled cassette into and out of the pyrolysis chamber to remove the outer wall and the pyrolysis chamber. A sealing loading step, a pyrolysis step of pyrolyzing the loaded industrial waste under oxygen-free and reduced pressure by heating means, and an unloading step of opening the outer wall and the pyrolysis chamber and removing the cassette after the pyrolysis is completed. It is comprised including.

The refilling process is performed at the standby position while supporting the empty cassette 20 on the cassette carriage 42. At the standby position, the lid 23 of the cassette 20 is opened and the industrial waste is put therein. When the input of the industrial waste is completed, the lid 23 is closed and fixed securely with the stopper 24. As shown in FIGS. 6 to 12, a cassette 20 that is most suitable for industrial waste to be charged is used.

In the carrying-in step, first, a signal to the effect that packing of industrial waste has been completed is transmitted to the transfer robot 30 from the standby position. When the inside of the pyrolysis chamber 11 is empty, the transfer robot 30 goes to receive the cassette in which the packing of the industrial waste is completed. It travels on the orbit rail and moves to the cassette receiving position. When the movement is completed, the arm 37 is lowered, and the revolving section 33 is revolved toward the cassette carriage 42 to move the arm.
The cassette 37 and the cassette carriage 42 face each other. When the turning is completed, the cassette carriage 42 is moved to the unloading position. The movement to the carry-out position may be performed automatically by providing a driving device on the cassette cart, or the cassette cart may be manually pushed out.

When the cassette carriage has been moved to the unloading position, the arm 37 provided with the revolving portion is raised, and the groove 37a provided in the arm 37 is inserted into the pin 22 provided in the cassette 20.
And raise the cassette 20. Cassette 20
Is completed, the cassette carriage 42 is moved to the standby position. When the movement of the cassette cart 42 is completed, the transfer robot 30 turns the turning unit 33 toward the pyrolysis furnace 10. After confirming that the door 16 of the pyrolysis furnace 10 is open, the transfer robot 30 moves to the pyrolysis furnace 10.

The transfer robot 30 carries the cassette 20 into the pyrolysis chamber 11. The transfer robot is a cassette 20
Stops at the positions of the drive shaft 19a and the pressing shaft 19b of the rotary drive device 16. The cassette 20 includes a pressing shaft 19b.
, And is pressed and fixed to the drive shaft 19a. After the cassette 20 is fixed, the arm 37 descends to release the lock of the pin 22. The transfer robot 30 moves backward to a position where it does not interfere with the door 16. The door 16 closes and the carrying-in process is completed.

In the pyrolysis step, the pressure inside the pyrolysis chamber 11 is first reduced to atmospheric pressure or lower. Then, the bottom of the thermal decomposition chamber 11 is heated by using a burner 17 provided outside the thermal decomposition chamber. The air heated by the burner 17 flows from the bottom of the pyrolysis chamber 11 to the periphery and rises on the side surface of the pyrolysis chamber 11. Meanwhile, heat is transferred to the pyrolysis chamber 11.
The industrial waste in the pyrolysis chamber 11 is further heated after being heated and dehydrated. Then, when the temperature reaches a predetermined temperature, thermal decomposition occurs, and the components of the industrial waste are gasified. The generated pyrolysis gas is carried to the next step and separated and recovered for each component.

The pyrolysis step is performed until all of the industrial waste has completed pyrolysis. Therefore, the inside of the cassette 20 in the pyrolysis chamber 11 is supported by the support mechanism 19.
It is supported in the air. Then, the cassette 20 is rotated in the pyrolysis chamber 11 by the drive mechanism 16. Thereby, the industrial waste in the cassette 20 is forcibly agitated so that heat is uniformly transmitted to the whole. During the thermal decomposition, the industrial waste is gradually carbonized and becomes a residue, and a part of the waste is dropped from the gap of the cassette 20 and is deposited on the bottom of the thermal decomposition chamber 11. These residues are collected by the residue collecting device 15 (see FIG. 2). When the generation of pyrolysis gas is no longer detected, the pyrolysis process is completed.

The carry-out step is performed in the reverse order of the carry-in affirmation, and the cassette 20 is carried out to the loaded cassette carriage 40. The unloaded cassette 20 is used again after removing the residue remaining therein.

[0071]

The cassette supply type pyrolysis method for industrial waste and the cassette supply type pyrolysis furnace for implementing the method according to the present invention carry in / out industrial waste by using a cassette. For this reason, handling of industrial waste becomes easy. Also,
Automation using a transfer robot can be easily performed. Further, by changing the structure of the cassette, it can be easily applied to solid and liquid industrial waste.

The cassette supply type pyrolysis method for industrial waste and the cassette supply type pyrolysis furnace for implementing the method according to the present invention rotate the cassette while supporting the cassette in the air in the pyrolysis furnace.
Therefore, the industrial waste in the cassette can be stirred and heated uniformly.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of an industrial waste cassette supply type pyrolysis furnace according to the present invention.

FIG. 2 is a plan view of the industrial waste cassette supply type pyrolysis furnace of FIG. 1;

FIG. 3 is a front view of the industrial waste cassette supply type pyrolysis furnace of FIG. 1;

FIG. 4 is a side view of the industrial waste cassette supply type pyrolysis furnace of FIG. 1;

FIG. 5 is a schematic diagram of a cassette supporting device and a driving device of a cassette supply type pyrolysis furnace for industrial waste.

FIG. 6 is a perspective view showing a cassette for charging solid industrial waste.

FIG. 7 is a perspective view showing a cassette for charging solid industrial waste.

FIG. 8 is a perspective view showing a cassette for charging solid industrial waste.

FIG. 9 is a perspective view showing a cassette for charging solid industrial waste.

FIGS. 10A and 10B are cross-sectional views of a body member of the cassette of FIG. 9;

FIG. 11 is a perspective view showing a cassette for charging liquid industrial waste.

FIG. 12 is a perspective view showing a cassette for charging liquid industrial waste.

FIG. 13 is a schematic diagram of an apparatus for thermally decomposing industrial waste.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pyrolysis processing apparatus 2 Gas diffusion apparatus 3 Tar removal apparatus 4 Processing tank 5 Neutralization tank 6 Decompression pump 7 Combustion deodorization apparatus 10 Thermal decomposition furnace 11 Thermal decomposition chamber 13 Outer wall 14 Door 15 Residue recovery apparatus 16 Drive mechanism 16a −R 16b Belt 16c Puri 16d Motor 17 Burner 19 Support mechanism 19a Support column 19b Pressing shaft 19c Drive shaft 19d Cylinder 20 Cassette 21 Side member 21a Exhaust port 21c Bolt 22 Pin 23 Cover 24 Stopper 24a Hook 25 Body member 25a Net 25b Steel material 25c Plate material 25d Slot 25e Corner 25h Projection 25i Stirring plate 25j Roll member 25l Guide plate 26 Reinforcement material 28 Rotating shaft 30 Transport robot 33 Revolving part 35 Traveling part 37 Arm 37a Groove 38 Track rail 40 Cassette cart 42 Cart body 45 Support arm 5a receiving unit 47 a wheel 48 Les - Le 48a standby position stopper 48b unloading position stopper 50 scaffold

Claims (16)

[Claims] 1. A refilling step of refilling industrial waste outside a furnace into a cassette from which a liquid material can flow out, and a refillable cassette can be put in and taken out of a pyrolysis chamber disposed inside a heat-insulating outer wall. A loading step of inserting and sealing the outer wall and the pyrolysis chamber; a pyrolysis step of heating the pyrolysis chamber with heating means to pyrolyze the industrial waste in the pyrolysis chamber under oxygen-free and reduced pressure; After the completion of the above, a carry-out step of opening the outer wall and the pyrolysis chamber to take out the cassette, and a cassette supply type pyrolysis method for industrial waste, comprising: 2. The pyrolysis method according to claim 1, wherein in the pyrolysis step, the cassette has a structure in which a liquid material can flow out, and the cassette is placed in a pyrolysis chamber. A cassette supply type pyrolysis method for industrial waste, wherein pyrolysis is performed while rotating. 3. The method according to claim 2, wherein the cassette is divided into a plurality of sections by a plurality of partition members extending radially around a rotation axis extending in a horizontal direction. A cassette supply type pyrolysis method for industrial waste, comprising: 4. The method of claim 1, wherein a small-capacity cassette is prepared for each type of industrial waste, and each cassette has a different type. A cassette supply type pyrolysis method, wherein a large number of cassettes are stored and removed in a furnace in a relatively short cycle by storing a small amount of industrial waste. 5. The method according to claim 4, wherein the refilling of the industrial waste into small-capacity cassettes for each type of industrial waste comprises:
A method for pyrolysis of industrial waste by a cassette supply method, wherein the method is performed on a plurality of cassette tables arranged adjacent to a furnace. 6. A cassette supply type pyrolysis method for industrial waste according to claim 1, wherein a large-capacity cassette capable of storing a plurality of types of industrial waste in a mixed manner is prepared. A cassette supply type pyrolysis method for industrial waste, characterized by storing a large number of types of industrial wastes in the large-capacity cassette and exchanging a small number of cassettes into and out of the furnace at a relatively long cycle. 7. The method for pyrolysis of industrial waste cassettes according to claim 4 or 6, wherein the cassette is taken in and out of the furnace by a robot installed adjacent to the furnace. -Type pyrolysis method of industrial waste to be supplied by cassette. 8. The industrial waste cassette supply type pyrolysis method according to claim 5, wherein the cassette is put in and taken out of the furnace and the industrial waste is refilled in a plurality of cassette tables, which is installed adjacent to the furnace. A cassette supply type pyrolysis method for industrial waste, wherein the pyrolysis method is performed by a robot. 9. A cassette from which a liquid material capable of refilling industrial waste outside the furnace can flow out, and the cassette is housed so as to be able to be taken in and out, and the industrial waste in the pyrolysis chamber is hermetically sealed and under reduced pressure. A thermal decomposition chamber for performing thermal decomposition, a heat-insulating outer wall provided surrounding the thermal decomposition chamber so that the cassette can be taken in and out, heating means for heating the thermal decomposition chamber, and the cassette A cassette supply type pyrolysis furnace for industrial waste, comprising: a support mechanism for supporting the pyrolysis chamber in the air. 10. The industrial waste cassette supply type pyrolysis furnace according to claim 9, further comprising a structure in which the cassette is configured to allow a liquid material to flow out.
An industrial waste cassette supply type pyrolysis furnace, further comprising a rotation drive mechanism for rotating the cassette in the pyrolysis chamber. 11. The industrial waste cassette supply type pyrolysis furnace according to claim 9, wherein a plurality of cassette tables are disposed adjacent to the furnace, and the industrial cassette is refilled into a spare cassette. Is a cassette supply type pyrolysis furnace for industrial waste, which is performed on the cassette table. 12. The industrial waste cassette supply type pyrolysis furnace according to claim 9 or 10, wherein a robot is provided adjacent to the furnace for taking a cassette into and out of the furnace, and taking the cassette into and out of the furnace. Is a cassette supply type pyrolysis furnace for industrial waste, wherein the pyrolysis furnace is performed by the robot. 13. The industrial waste cassette supply type pyrolysis furnace according to claim 11, wherein a robot for transporting the cassette is installed adjacent to both the furnace and the cassette mounting table, and the cassette is taken in and out of the furnace. And a cassette supply type pyrolysis furnace for industrial waste, wherein the robot is transported to a plurality of cassette tables. 14. A cassette used in an industrial waste cassette supply type pyrolysis furnace, comprising: a rotating shaft extending in a horizontal direction; a plurality of partition members extending radially around the rotation shaft; A liquid body surrounding the outer periphery of the cylindrical body through which a liquid material can flow out; and a lock formed on a part of the cylindrical body, one for each of a plurality of sections partitioned by the partition member and the cylindrical body. A cassette for use in a cassette feed pyrolysis furnace for industrial waste, comprising: a possible door; 15. The cassette used in the industrial waste cassette supply type pyrolysis furnace according to claim 14, wherein the cylindrical body forms a cylinder or a regular polygonal cylinder. Cassette used in feed-type pyrolysis furnace. 16. A cassette for use in an industrial waste cassette-fed pyrolysis furnace, wherein the cassette is made of a vertically or horizontally oriented central axis and a liquid impermeable material surrounding the central axis. A cassette-supplied pyrolysis of industrial waste, comprising: a surrounding wall that has been closed; and a non-hermetic lid that is formed at a position where the liquid inside does not leak when storing the liquid industrial waste. Cassettes used in furnaces.