JP2001276790A - Method for treating waste - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for treating waste wherein airtight properties between a compression apparatus and a dry distillation-carbonization furnace are held and gas generated by being accompanied with treatment of the waste can be prevented from being leaked from the compression apparatus in the method for treating waste wherein after the waste is compression-molded, a compression-molded article obtained is dry-distilled and carbonized. SOLUTION: In the method for treating the waste using an installation for treating the waste with the compression apparatus 1 for compression-molding batch-wisely the waste and the dry distillation-carbonization furnace for drying, thermally decomposing and carbonizing the compression-molded article obtained, when a waste with shape recovery properties after compression treatment is filled into the compression apparatus 1, after a mixture of the waste with an article for holding a shape after compression treatment is filled, compression molding is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a waste treatment method for compressively molding waste and subjecting the obtained compressed molded product to dry distillation and carbonization. The present invention relates to a waste disposal method capable of preventing leakage of gas generated during waste disposal from a compression device.

[0002]

2. Description of the Related Art At present, the shortage of waste disposal sites has become remarkable, and most industrial and general wastes are incinerated as they are generated or after some kind of pretreatment, to reduce their volume. After that, final disposal such as landfill is often performed. Various methods are mentioned as the method of incineration described above, but in recent years, management of harmful substances such as dioxins in generated gas in incineration plants has become important,
There is a need for a treatment method capable of decomposing harmful substances in a high-temperature oxidizing atmosphere.

[0003] As a waste disposal method capable of such high temperature treatment, JP-A-6-26626 and JP-A-6-792352.
And a waste disposal process disclosed in Japanese Patent Application Laid-Open No. 7-323270. The above-described process is a waste treatment process in which waste is compression-molded, dried, thermally decomposed, carbonized, and the resulting carbonized product is gasified and melted to obtain a fuel gas, slag, and metal.

FIG. 3 is a side sectional view showing the above-mentioned waste treatment equipment. In FIG. 3, 1 is a compression device for pressurizing and compressing waste in a batch (batch) manner, 2 is a cylindrical compression chamber, 2W is a compression chamber wall, 3 is a compression piston, 4 is a compression support disk, 4P is the tip of the compression support board, 5 is the insertion port of the compression support board, 6 is the waste inlet, 7 is the compressed waste (compressed waste) (hereinafter also referred to as compression molded product), which is dried, thermally decomposed,
Horizontal tunnel type heating furnace (hereinafter also referred to as tunnel type heating furnace) which is a carbonization and carbonization furnace for carbonizing, 7a is a drying region of the compression molded product, 7b is a thermal decomposition and carbonization region of the compression molded product, 7e
Is the entrance of the waste (compression molding) of the tunnel heating furnace 7,
7f is an outlet of the carbonized product of the tunnel heating furnace 7 (: a carbonized product inlet provided on the side wall of the high-temperature reaction tower 8), 8 is a vertical high-temperature reaction tower, and 9a and 9b are those of the tunnel-type heating furnace 7. Flow pipe for high temperature gas for furnace heating arranged in the side wall, 10a, 10i
Is a compression molded product, 11, 11i and 11n are carbonized products, 12 is a sedimentary layer (hereinafter also referred to as a sedimentary layer) which is a mixture of the carbonized product 11 and a combustion residue, 14 is a melt, and 14H is a melt outlet. , 15 is an oxygen-containing gas supply pipe, 15a is an oxygen-containing gas supply port to the high-temperature reaction tower 8 (hereinafter also referred to as a high-temperature reaction tower oxygen-containing gas supply port), and 16 is connected to a lower side wall of the high-temperature reaction tower 8 Melt heating / insulation furnace (hereinafter also referred to as melt heating / insulating furnace), which is a horizontal cylindrical heating furnace, and 16e:
, 17 is a burner which is a heating device of the melt heating / insulating furnace 16, 17 a is a combustion gas supply port for supplying a high-temperature combustion gas into the melt heating / insulating furnace 16, 21 is a lid of the waste inlet 6. , 30
Is a cooling device (rapid cooling device) for the high-temperature reaction tower generated gas (hereinafter, also referred to as generated gas) discharged from the high-temperature reaction tower 8, 31 is a gas purification device, 32 is a generated gas outlet of the high-temperature reaction tower 8, 33
The central axis of the purified gas, CL is cylindrical compression chambers, f ₁ compression molded product 10a, 10i moving direction of, f ₂ is carbonized product 11i, 11n moving direction of, f ₃ is a tunnel type heating furnace 7 in the resulting direction of flow of pyrolysis gas, f ₄ is blowing direction of the oxygen-containing gas into the high temperature reaction tower 8, f ₅ is the direction of movement of the compression piston 3, f ₆
Direction of movement of the compression support plate 4, f ₇ the lid 21 of the waste inlet 6
Shows the direction of rotation.

In the waste treatment facility shown in FIG. 3, first, a predetermined amount of waste supplied from the waste inlet 6 into the compression device 1 is batch-compressed into a dense compression molded product 10a. . Next, the compression molded product 10a is passed through the flow pipes 9a and 9b.
It is pushed into the elongated tunnel-type heating furnace 7 heated by the high-temperature gas flowing inside.

The cross-sectional shape of the compression-molded product 10a is the same as the cross-sectional shape of the inner wall of the entrance 7e of the tunnel type heating furnace 7, and has the same dimensions.
Since the compression molded product 10a is pushed in while maintaining the contact state with the inner wall of the tunnel heating furnace 7, the atmosphere in the heating furnace can be sealed at the tunnel heating furnace entrance. Each time a new molded product is pushed in, the compressed molded product 10i moves while sliding in the tunnel heating furnace 7.

The tunnel heating furnace 7 is heated by the high-temperature gas flowing through the flow pipes 9a and 9b as described above, and the inside thereof is heated up to about 600 ° C., during the movement of the compression-molded product 10i and the heating process. Then, the compression molded product 10i is dried, thermally decomposed and carbonized. The carbonized product 11n and the gas generated by pyrolysis and carbonization are charged and supplied into the high-temperature reaction tower 8 maintained at 1000 ° C. or higher from a carbonized product inlet 7f provided on the side wall of the high-temperature reaction tower 8. .

The carbonized product 11n is deposited on the lower part of the high-temperature reaction tower 8 to form a deposited layer 12. Carbonized products 11 of the sedimentary layer 12
Is an oxygen-containing gas supplied from a high-temperature reaction vessel oxygen-containing gas supply port 15a below the high-temperature reaction tower 8, and the combustibles are partially oxidized and gasified, and together with the gas from the tunnel heating furnace 7, It stays for 2 seconds or more in the upper region of 1000 ° C. or higher of 8 and can be recovered as a synthesis gas for fuel containing carbon monoxide and hydrogen.

That is, the combustibles in the deposition layer are burned (partial oxidation and gasification) with the oxygen-containing gas supplied into the deposition layer 12 from the high-temperature reaction tower oxygen-containing gas supply port 15a below the high-temperature reaction tower 8, The non-combustible components (metal,
Ash). The gas generated during the combustion rises in the high-temperature reaction tower 8 through the sedimentary layer 12, and the rising gas performs countercurrent heat exchange with the carbonized product 11 in the lower sedimentary layer of the high-temperature reaction tower 8, The sensible heat of the carbonized product 11 is increased.

As a result, since the carbonized product 11 having a large sensible heat is supplied to the combustion / melting portion near the furnace bottom of the high-temperature reaction tower 8, the carbonized product 11 can be easily partially oxidized and gasified in terms of energy. The non-combustible components in the carbonized product 11 can be melted. The melt 14 is heated by a heating device 17 such as a burner in a melt heating / insulating furnace 16 connected to the lower side wall of the high-temperature reaction tower 8 to homogenize the melt composition. It is recovered as molten slag and molten metal from 14H.

In the above, the conventional waste treatment process in which the waste carbonization furnace and the carbonization furnace 7, the high temperature reaction tower 8, and the melt heating / insulating furnace 16 are provided has been described. There were the following problems. That is, as shown in FIG. 1, in the above-described conventional waste treatment process, elastic waste such as sponge and foam, that is, waste having shape recovery after compression is batch-processed by the compression device 1. In the case of compression, a part of the obtained compression molded product returns to its original shape, and is sandwiched between the tip 4P of the compression support plate 4 moving vertically and the inner wall 2W of the compression chamber, and the tip 4P of the compression support plate 4 A gap is generated between the compression chamber inner wall 2W.

As a result, there is a possibility that gas generated in the process after the carbonization / carbonization furnace 7 leaks from the compression device 1 to the outside.

[0013]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the prior art and provides a waste treatment method for compressing and molding the obtained waste, followed by dry distillation and carbonization of the obtained compressed molded product. An object of the present invention is to provide a waste treatment method capable of maintaining airtightness between a compression device and a carbonization / carbonization furnace and preventing leakage of gas generated during waste treatment from the compression device. And

[0014]

SUMMARY OF THE INVENTION The present invention relates to a waste apparatus having a compression apparatus 1 for batch compression of waste and a dry distillation / carbonization furnace 7 for drying, pyrolyzing and carbonizing the obtained compression molded product. In the waste treatment method using a treatment facility, when loading the compression device 1 with waste having a shape recovery property after compression, a mixture of the waste and a material having a shape after compression is loaded. And then compression molding.

The present invention described above is suitably applied to a waste treatment method using a waste treatment facility in which the outlet of the compression molded product of the compression device 1 is connected to the inlet of the compression molded product of the carbonization / carbonization furnace 7. (A first preferred embodiment of the present invention). Further, in the waste treatment method of the present invention and the first preferred embodiment of the present invention, as the compression device 1, a cylindrical compression chamber 2 and a central axis of the compression chamber disposed in the compression chamber 2 are provided. It has a compression piston 3 that moves in the CL direction, a compression support disk 4 that supports waste in the compression chamber when the compression piston 3 is pressed, and a compression support disk insertion port 5 that is provided on the side wall of the compression chamber. At the same time, the waste using the waste treatment equipment having the compression device 1 in which the tip 4P of the compression support disk 4 inserted from the compression support disk insertion port 5 is in contact with the compression chamber wall 2W facing the compression support disk insertion port 5 It is suitably applied to the processing method (the second preferred embodiment and the third preferred embodiment of the present invention).

Further, the second preferred embodiment of the present invention described above,
In a third preferred embodiment, the compression device 1 comprises a compression chamber 2
It is preferable to have the waste inlet 6 provided in the side wall of the present invention (fourth preferred embodiment and fifth preferred embodiment of the present invention). In addition, the method for loading the mixture of the waste having the shape recovery property after the compression processing and the material that retains the shape after the compression processing into the compression apparatus 1 of the present invention is not particularly limited, and the method is not particularly limited. The mixed material may be loaded at an arbitrary place in a waste treatment plant provided with the waste treatment equipment according to the present invention, and the compression device 1 may be loaded with waste having shape recoverability after compression treatment. The mixture may be charged by alternately charging the material having the shape after the compression treatment or simultaneously charging the material.

Further, it is preferable that the material retaining the shape after the compression treatment in the present invention is a waste from the viewpoint of effective use of resources. Further, the cross-sectional shape (the cross-sectional shape orthogonal to the center axis CL of the compression chamber 2) of the cylindrical compression chamber 2 in the second to fifth preferable aspects of the present invention is not particularly limited. Instead, it is possible to use the cylindrical compression chamber 2 having a square or circular cross section.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail. The present inventors have conducted intensive studies in order to solve the above-described problems of the present invention.As a result, when compressing waste having elasticity such as sponge or foam, that is, waste having shape recovery after compression processing, After loading a mixture of the waste and paper, cardboard, garbage and the like that retains the shape after the compression treatment, it was found that the above-described problem can be solved by compression molding, and Invented the invention.

That is, according to the present invention, there is provided a compression apparatus 1 for batch-compressing waste material, and drying the obtained compression-formed product.
In a waste treatment method using a waste treatment facility having a pyrolysis / carbonization furnace 7 that pyrolyzes and carbonizes, when loading waste having shape recovery after compression into the compression device 1, the waste is compressed with the waste. This is a waste treatment method in which a mixture with a material that retains the shape after treatment is loaded and then compression-molded.

In addition, according to the present invention described above, for the purpose of the present invention, the waste of the waste using a waste treatment facility in which the outlet of the compression molded product of the compression device 1 is connected to the inlet of the compression molded product of the dry distillation / carbonization furnace 7. It is suitably applied to a material processing method. In addition, according to the present invention, for the purpose of the present invention, as the compression device 1, a cylindrical compression chamber 2 and a central axis CL of the compression chamber disposed in the compression chamber 2 are provided.
A compression support piston 4 that moves in the direction, a compression support disk 4 that supports waste in the compression chamber against the pressing of the compression piston 3, and a compression support disk insertion port 5 provided in a side wall of the compression chamber. Waste treatment using a waste treatment facility having a compression device 1 having a compression device 1 in which a tip 4P of a compression support disk 4 inserted from a compression support disk insertion port 5 is in contact with a compression chamber wall 2W facing the compression support disk insertion port 5. It is suitably applied to the method.

Further, from the viewpoint of operability, in the above-described compression apparatus 1, it is preferable to provide a waste inlet 6 on the side wall of the compression chamber 2. In the present invention, the waste having the shape recovery property after the compression processing refers to the pressing member (pressing plate) such as the compression piston shown in FIGS. Later, at least a portion of the compression molding shows the expanding waste.

Examples of the waste having the shape recovery property after the above-mentioned compression treatment include a waste containing one or more selected from sponge, rubber, polyurethane and the like. In addition, as the waste having shape recoverability after the above-mentioned compression treatment, crushed products (shredder dust) obtained by crushing automobile interior materials such as resin sheets and parts using foams, and parts of home electric appliances. And wastes from which metal components have been removed by magnetic separation.

Further, in the present invention, the material which retains the shape after the compression processing means that after the compression processing, the above-mentioned pressing member (pressing plate) such as the compression piston shown in FIGS. FIG. 3 shows an object that retains the entire shape of the compression-molded product after being retracted. Examples of the object that retains the shape after the above-described compression treatment include an object containing one or more selected from paper, cardboard, garbage, and the like.

It is preferable that the above-mentioned paper and cardboard are waste from the viewpoint of effective use of resources. Also,
More specifically, the waste having the shape recovery property after the above-described compression treatment is a waste whose shape recovery rate obtained by the following test method satisfies the following expression (1), and the shape after the above-mentioned compression treatment Are those whose shape recovery rate Δl obtained by the following test method satisfies the following formula (2).

Δl ≧ 20% (1) The upper limit of Δl is naturally defined by the amount of waste before compression, and is not particularly limited. 10% ≧ Δl (2) Hereinafter, both the waste having the shape recovery property after the compression processing and the one having the shape retaining after the compression processing are also referred to as wastes.

[Shape recovery rate measuring method:] The shape recovery rate of waste and the like is determined by the following test equipment and test method. (Testing Apparatus :) FIG. 2 shows the testing apparatus by a sectional side view. FIG. 2A shows a state after compression (before the retraction of the compression piston), and FIG. 2B shows a state after compression and after the retraction of the compression piston.

In FIG. 2, reference numeral 2 denotes a cylindrical compression chamber,
Reference numeral 3 denotes a piston for compression, 6 denotes an inlet for waste, etc., 10a denotes compressed waste, etc. (compression molded product such as waste), 20 denotes a compression device, 21 denotes a lid of the inlet 6 for waste, etc., and 22 denotes a lid. Side walls of compression chamber, 23
Is the wall of the compression chamber, which is a compression support disk, 10aT is the projection of the compression molded product, CL is the central axis of the cylindrical compression chamber, H is the height (inner dimension) of the compression chamber 6, and L is the height of the compression chamber 6. Indicates the length (inner dimension).

Specification of compression chamber: Cross section orthogonal to central axis CL: square Inner dimensions: height H = 350 mm, width W = 500 mm, length L (: length in pressing direction) 2000 mm Specifications of compression piston 3 ： Pressing surface height = 350 mm, pressing surface width = 500 mm (Test method) Amount of waste, etc. to be loaded into the compression chamber: 60 × 10 ³ cm ³ 4.90 × 10 ⁶ N / m ² (500 After applying a surface pressure of × 10 ³ kgf / m ² ) to waste and compressing it, the compression piston 3
Is retracted with respect to the compression molded product 10a.

After the compression piston is retracted, the dimension of the compression molded product in the thickness direction (: pressing direction) is measured, and the maximum dimension in the thickness direction (: pressing direction): l _MAX is measured. Next, the following equation
Based on (3), the shape recovery rate of wastes: Δl (%) is obtained. Shape recovery rate: Δl = [(l _MAX− l) / l] × 100 (%) (3) In the above formula (3), l: waste after compression (before retraction of the compression piston) Dimensions (mm) in the thickness direction (pressing direction) of the etc. (compression molded product) The above l can be determined from the pushing distance of the compression piston.

[0030] l _MAX: the thickness direction of the waste after compression piston retracted and the like (compression molded product): As shown in largest dimension Figure 2 (pressing direction), the maximum dimension above: the l _MAX, compression molding When a convex part 10aT is formed in a part of the compression molded product in the thickness direction by the shape recovery (spring back) of the product,
Opposite side of the compression piston pressing surface (compression support board side)
Shows the distance between the surface of the compression molded product and the top of the convex portion 10aT.

When a plurality of protrusions are formed as shown in FIG. 2, the above-mentioned maximum dimension: l _MAX is the compression molded product on the side opposite to the pressing surface by the compression piston (on the side of the compression support plate). And the distance from the top surface of the convex portion 10aT having the maximum height in the direction of the central axis CL of the cylindrical compression chamber. Hereinafter, the waste disposal method of the present invention will be described.

In the present invention, a waste treatment facility having a compression apparatus 1 for batch compression of waste and a dry distillation / carbonization furnace 7 for drying, pyrolyzing and carbonizing the obtained compression molded product is used. In the processing of waste, when loading the compression device 1 with waste having a shape recovering property after the compression processing, a mixture of the waste and a substance having a shape after the compression processing is loaded and then compression-molded. .

In this case, 100 parts by weight (: parts by mass) of the waste having shape recovery properties after the compression treatment satisfying the above-mentioned expression (1) is subjected to the compression treatment satisfying the above-mentioned expression (2). It is preferable to mix a material that retains the following shape in an amount of 8 parts by weight (: parts by mass) or more. It is more preferably at least 10 parts by weight (: parts by mass). When less than 8 parts by weight satisfy the above formula (2), the shape of the compression molded product is recovered, as shown in FIG. 1, between the tip 4P of the compression support plate 4 and the inner wall 2W of the compression chamber. Waste, etc., is likely to be caught between the compression apparatus 1 and the carbonization / carbonization furnace 7.

The upper limit of the amount of the material that retains the shape after the compression treatment that satisfies the above formula (2) is not particularly limited. From the viewpoint of increasing the amount of waste that satisfies the above formula (1), the amount of the material that satisfies the above formula (2) is 100 It is preferably 50 parts by weight (: parts by mass) or less relative to part by weight (: parts by mass).

The compression molded product is treated in the same manner as in the waste treatment facility shown in FIG. That is, the carbonized product 11n obtained by drying, thermally decomposing, and carbonizing the compression molded waste (: compressed product 10i) is subjected to a high temperature reaction through a carbonized product inlet 7f provided on the side wall of the high temperature reaction tower 8. An oxygen-containing gas is supplied to the carbonized product 11 charged in the tower 8 and deposited in the high-temperature reaction tower 8, and the carbonized product 11 is partially oxidized, gasified, and melted to treat waste. .

The gas generated in the high-temperature reaction tower 8 is recovered as a purified gas (synthesis gas for fuel) 33. Further, the melt 14 is heated by a heating device 17 such as a burner in a melt heating / insulating furnace 16 connected to the lower side wall of the high temperature reaction tower 8 to gasify and remove a small amount of carbon and the like contained in the melt. The melt 14 is recovered from the melt outlet 14H as molten slag and molten metal.

As described above, the present invention has been described. According to the present invention, a compression apparatus, a dry distillation / carbonization method, and a waste treatment method for subjecting a compression molded product to dry distillation and carbonization after compression molding waste. It has become possible to maintain the airtightness with the furnace and prevent the gas generated during the treatment of waste from leaking from the compression device.

[0038]

EXAMPLES The present invention will be described below more specifically based on examples. (Example 1) Waste treatment was performed using the waste treatment facility shown in FIG. Tables 1, 2, and 3 show the specifications of the compression apparatus 1, the tunnel heating furnace 7, and the high-temperature reaction tower 8 of the waste treatment facility.

The waste treatment equipment shown in FIG. 3 described above is used to process waste containing rubber, sponge, etc. (hereinafter referred to as waste A) and waste including paper, cardboard, garbage, etc. (hereinafter referred to as waste B). Processed. In addition, as a result of measuring the shape recovery rate of the above waste: Δl by the test method described above, the shape recovery rate of the waste A: Δl was 50%, and the shape recovery rate of the waste B:
Δl was 8%.

In this embodiment, waste A and waste B
At the same time from the waste inlet 6 into the compression chamber 2 of the compression device 1, the mixture of waste A and waste B in the compression chamber 2,
Compression was performed batchwise, and the obtained compression molded product 10a was pushed into the tunnel heating furnace 7. The mixing amount of the waste B with respect to the waste A was 10 parts by weight (: parts by mass) with respect to 100 parts by weight (: parts by weight) of the waste A.

The compression molded product is sequentially pushed into the tunnel heating furnace 7 by the above-described method, and the carbonized product (the carbonized product of the waste compression molded product) 11n obtained in the tunnel heating furnace 7
To the carbonized product inlet 7f provided on the side wall of the high-temperature reactor 8
From the reactor. Further, oxygen (O ₂ concentration: 99 vol%) is contained in the carbonized product 11 deposited in the high-temperature reaction tower 8.
To partially oxidize and gasify the carbonized product 11 and melt it.
The gas generated in the high-temperature reaction tower 8 is recovered as a purified gas (synthesis gas for fuel) 33, and the melt discharged from the melt outlet 14H is separated out of the furnace by specific gravity and recovered as molten slag and molten metal. did.

As a result of the above-mentioned operation, the waste could be treated without any gas leakage from the compression device 1. (Embodiment 2) In Embodiment 1 described above, waste A and waste B are alternately charged into the compression chamber 2 of the compression device 1 from the waste inlet 6, and the waste A and the waste in the compression chamber 2 are disposed. The waste was treated under the same conditions as in Example 1 except that the mixture of the product B was batchwise compressed, and the obtained compression molded product 10a was pushed into the tunnel heating furnace 7.

As a result of the above-mentioned operation, waste could be treated without any gas leakage from the compression device 1. (Example 3) The above-mentioned waste A and waste B were mixed by a mixer disposed in a waste treatment plant having the waste treatment facility shown in FIG.

The amount of waste B with respect to waste A was the same as in Example 1. Next, the obtained mixture is
The waste is injected into the compression chamber 2 of the compression device 1 from the waste inlet 6 of the waste treatment facility shown in FIG. 3, and the mixture of the waste A and the waste B in the compression chamber 2 is batch-compressed. Compression molding
10a was pushed into the tunnel heating furnace 7, and the waste was treated under the same conditions as in Example 1.

As a result of the above-mentioned operation, the waste could be treated without any gas leakage from the compression device 1. (Comparative Example) The same waste (rubber A, shape recovery rate: Δl) containing rubber, sponge, and the like as used in Example 1 described above.
= 50%) alone, except that it was treated in the same manner as in Example 1 above.

As a result, in the course of the operation, as shown in FIG. 1 described above, a part of the compression molded product in the compression device 1 returns to its original shape, and the tip 4P of the compression support plate 4 which moves in the vertical direction is compressed. A gap is formed between the distal end 4P of the compression support board 4 and the compression indoor wall 2W between the compression support plate 4 and the interior wall 2W.
Gas generated in the carbonization furnace 7 and the high-temperature reaction tower 8 leaked slightly from the compression device 1 to the outside.

Although the embodiment has been described above, the present invention is not limited to the compression apparatus, the carbonization furnace and the waste treatment facility having the high-temperature reaction tower, but the compression apparatus, It can be suitably used as a method of treating waste in a waste treatment facility that has a carbonization furnace and a carbonization product that is shipped as a fuel.

[0048]

[Table 1]

[0049]

[Table 2]

[0050]

[Table 3]

[0051]

According to the present invention, in a waste treatment method for subjecting a compression molded product to dry distillation and carbonization after compression molding of waste, an airtightness between a compression apparatus and a dry distillation / carbonization furnace is provided. And it is possible to prevent the gas generated during the disposal of waste from leaking from the compression device.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an example of a compression device of a waste treatment facility.

FIG. 2 is a side sectional view showing a shape recovery ratio measurement test apparatus.

FIG. 3 is a side sectional view showing an example of a waste treatment facility.

[Explanation of symbols]

1,20 Compressor 2 Compression chamber 2W Compression chamber wall 3 Compression piston 4 Compression support board 4P Tip of compression support board 5 Compression support board insertion port 6 Waste input port 7 Dry distillation / carbonization furnace (tunnel heating furnace) 7a Compression Dry area of molded product 7b Thermal decomposition and carbonization area of compression molded product 7e Inlet of waste (compression molded product of waste) from dry distillation / carbonization furnace (tunnel heating furnace) 7f Dry distillation / carbonization furnace (tunnel heating furnace) 8: High-temperature reaction tower 9a, 9b High-temperature gas distribution pipe 10a, 10i Compression molded product 10aT Convex portion of compression molded product 11 , 11i, 11n Carbonized product 12 Sedimentary layer (sedimentary layer of mixture of carbonized product and combustion residue) 14 Melt 15 High-temperature reaction tower oxygen-containing gas supply pipe 15a High-temperature reaction tower oxygen-containing gas supply port 16 Melt heating and heat retention Furnace (horizontal cylindrical melting / heating furnace) 16e Entrance of heat and heat insulation furnace (entrance of molten material) 17 Heating device (burner) 17a Combustion gas supply port 21 Cover of waste input port 22 Side wall of compression chamber 23 Wall of compression chamber (compression support board) 30 High-temperature reaction tower generated Gas cooling device (Quenching device) 31 Gas purification device 32 Generated gas outlet of high-temperature reaction tower 33 Purified gas CL Central axis of compression chamber f ₁ Moving direction of compression molded product f ₂ Moving direction of carbonized product f ₃ Dry distillation Flow direction of pyrolysis gas generated in carbonization furnace (tunnel heating furnace) f ₄ Direction of blowing oxygen-containing gas into high-temperature reaction tower f ₅ Moving direction of compression piston f ₆ Moving direction of compression support plate f ₇ Rotation direction of waste inlet lid H Height of compression chamber L Length of compression chamber

 ──────────────────────────────────────────────────続 き Continuing on the front page F term (reference)

Claims (3)

[Claims] 1. A compression apparatus for batch compression of waste.
(1) and a waste treatment method using a waste treatment facility having a dry distillation / carbonization furnace (7) for drying, pyrolyzing and carbonizing the obtained compression molded product. A waste disposal method, comprising: loading a mixture of the waste and a material that retains the shape after the compression treatment, followed by compression molding when loading the waste having the shape recovery property. 2. The waste disposal method according to claim 1, wherein an outlet of the compression molded product of the compression device (1) is connected to an inlet of the compression molded product of the dry distillation / carbonization furnace (7). . 3. The compression device (1) includes a cylindrical compression chamber (2).
A compression piston (3) disposed in the compression chamber (2) and moving in the direction of the center axis (CL) of the compression chamber; and the compression piston
(3) a compression support plate (4) that supports the waste in the compression chamber against the pressure of (3), and a compression support plate insertion port provided on the side wall of the compression chamber
(5), and the tip (4P) of the compression support board (4) inserted from the compression support board insertion port (5) is inserted into the compression support board insertion port (5).
The waste disposal method according to claim 1 or 2, wherein the compression device (1) is in contact with the inner wall (2W) of the compression chamber opposite to the compression device.