JP2007216204A - Pyrolysis apparatus for waste product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pyrolysis apparatus for a waste product for solving the problem that the treatment of a waste product, presently classified into either incineration or reclamation with recycling also recommended, cannot realize satisfactory recycling in terms of cost owing to a restriction in the type of waste product, concerns environmental destruction by dioxin or the like caused by disposal in an incinerator although incineration disposal is mainly generally performed for a medical waste product such as an infectious waste product, and cannot be expected for a significant improvement in reclamation disposal owing to a reduction of disposal sites, environmental access and the like. <P>SOLUTION: The pyrolysis apparatus for the waste product is provided comprising a high frequency sterilizing chamber, a crushing chamber, a drying chamber, a dechlorination chamber, a pyrolysis carbonization chamber and a cooling chamber irrespective of the kind of a waste product, wherein pyrolysis of a waste product by heated steam is automated, a hydrocarbon oil or the like generated by pyrolysis is reused as an auxiliary fuel for a heated steam generating burner, a chlorine gas is made harmless by heated steam treatment, a clean gas is produced in a condensing tower, and external environmental pollution is not produced and residue is not generated in a waste disposal process, whereby the apparatus can contribute to environment. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention is an apparatus related to waste processing, such as environmental pollution, reduction of residues, and improvement of waste recycling rate in waste processing.

Conventionally, many treatments are performed in waste treatment, but it has a significant impact on the global environment, such as environmental pollution, residue treatment, and reduction of landfill sites. Scientific materials such as plastics that do not disappear in the natural environment are increasing. However, the treatment of chemical substances is generally landfilled or incinerated, but it causes environmental pollution such as soil contamination and dioxin, and there are concerns about serious impacts on the lives of nearby residents and the ecosystems of animals and plants.

The problem to be solved by the invention is that the waste is exhausted in the process of pyrolysis treatment, the exhaust gas is recirculated without being exhausted to the outside, and used as a heat source for pyrolysis treatment. Separation, fractionation and reuse as scientific raw materials. In addition, the pyrolyzed carbide is used for soil purification, water, air purification, and the like.

Therefore, the object of the present invention is to dispose of the waste pyrolysis apparatus to a unit formed of metal or concrete and hard resin, and the waste is transferred to a high-frequency sterilization treatment, crushing, drying, dechlorination, gas in the sealed space of each box. Each process such as carbonization, carbonization and cooling is performed. Further, exhaust gas such as hydrocarbon oil discharged in the pyrolysis process is reused by the reflux mechanism and is not exhausted to the external environment.

In order to achieve the above object and achieve the object, the waste pyrolysis apparatus according to the present invention can treat regardless of the kind of waste. A high-frequency radiation device can provide sterilization and sterilization processes to treat medical waste. Food residues and plastics or liquids can also be treated by pyrolysis. The exhaust gas generated in the pyrolysis process can be reused after fractional distillation by a fractionator. Carbonized waste after pyrolysis has many uses and can be widely used to improve the environment.

There are a number of treatment methods in the treatment of waste, but broadly speaking, landfill or incineration is more than 80% of the treatment and there is no significant improvement. The present invention is liquefied and carbonized by pyrolysis treatment. Recycle waste after pyrolysis. Carbonized waste takes advantage of the characteristics of porosity, and there is no exhaust gas that is released into the outside air through a series of treatment steps and environmental improvement such as water purification, recycling of hydrocarbon oil discharged in the thermal decomposition process. Therefore, it is an environmentally friendly waste pyrolysis device that does not prolong the life of the landfill site and is not incinerated in the incinerator, and is free from the environmental pollution of the outside air exhaust gas.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 shows an example of a waste carbonization apparatus according to the present invention. This processing apparatus is made of concrete, metal, or resin, and waste that has entered from the 5 inlets is transported by 10 transporting inclined belts. During the transfer of 10, the high frequency generated by the 11 high frequency generator irradiates the waste and sterilizes it. The waste after sterilization is crushed by 15 crushing apparatuses and carried into 20 flake filling chambers.

Flakes are thrown into the container 40 for flake conveyance set in 20 filling chambers. The front gate 29 of the drying chamber 21 rises upward, and the transfer container 40 moves to the drying chamber 21. After 40 moves to the fixed position of 21, the front gate of 21 is lowered and the drying chamber of 21 is completely sealed. After sealing, 30 electric heaters installed on the floor surface of the drying chamber 21 are heated. In order to accelerate drying, the heating steam produced by the 90 heating steam generator flows into the 31 heating steam heater, and the flakes inside 40 are dried.

After the drying process 21, the transfer container 40 is sent to the dechlorination chamber 22. During this movement, the rear gate 21 opens and moves to a fixed position 22 and then closes. The nitrogen gas produced by the nitrogen gas generator 60 after the 22 is sealed passes through the 62, 63, 65 to fill the 22 dechlorination chamber and push the air in the chamber 22 into the 50 chlorine gas recovery circuit. Replacement is also performed in each chamber from 21 to 22, 23, 24, and 25. With this series of flows, the room 22 is filled with nitrogen gas and becomes a space that does not ignite and burn. 30 electric heaters set in 22 rooms and 31 heating steam heaters are heated, and flakes in 40 are pyrolyzed. At this point, chlorine gas is generated, and this chlorine gas is recovered in 53. 50 scrubbers Contact with water to recover.

The flakes carried into the carbonization chambers 23, 24, and 25 are overheated by 30 electric heaters and 31 heating steam heaters to pyrolytically carbonize the flakes. The hydrocarbon oil generated in the carbonization process enters 70 hydrocarbon coolers, passes through 73 hydrocarbon oil recovery circuit, is fractionated by 75 hydrocarbon fractionator, and is stored in 80 through 77.

Each hydrocarbon oil stored in 80 passes through circuits 85, 86, and 87 and is recycled as an auxiliary fuel for 90 heating steam generating heat sources by an auxiliary burner 91 of 90 hot air generators.

The flake carrier container moves on the container return conveyor 35 and returns to the turn 20 by the container 90-degree turning device 38. While moving 35, the container 39 receives flakes inside the container by the 90-degree reversing device and empties the container.

Each of the cooling chambers 26, 27, and 28 is cooled by 45 heat exchangers, and this cooling chamber is also opened and closed separately in the front and rear as in the other 21, 22, 23, 24, and 25 chambers. Becomes a completely enclosed space.

FIG. 2 is an example of a carbonization chamber used in the present invention.
The gate 29 of each chamber has a wedge shape, and when the front gate is opened in accordance with the movement of the 40, the rear gate is closed. By repeating this, each chamber 21, 22, 23, 24, 25, 26, 27 is Sealed. When 40 containers are moved, replenishment of nitrogen gas is automatically supplied to the chambers 21, 22, 23, 24 and 25.

The cooling chambers 26, 27, and 28 circulate and cool water. A water circulation device is installed on the floor and wall of each room to absorb heat. The cold water to be heat exchanged passes through the 49 cooling water delivery pipes and enters the heat exchangers of the respective chambers to exchange heat. The hot water after the heat exchange passes through the cooling water return circuit 48 and enters the heat exchanger 45 to be cooled.

FIG. 3 is an example of a heating steam and cooling water circuit used in the present invention.
The heated steam passes through a heated steam heater in each chamber, passes through a heated steam discharge circuit 96, and is separated and discharged into condensed water and clean gas in a 97 condensing tower. The cooling water flowing into the heat exchanger 45 by the cooling water return is mixed with the condensed water and circulated.

As described above, the waste pyrolysis apparatus according to the present invention can treat any kind of waste, considers the global environment such as reduction of exhaust gas such as dioxin and landfill residue, and reuses waste. It is a device that contributes to the environment by preventing environmental pollution and purifying water and air by carbonizing waste.

It is a perspective view which shows an example of the waste pyrolysis processing apparatus which concerns on this invention. It is sectional drawing which shows an example of the waste pyrolysis processing apparatus which concerns on this invention. It is a perspective view which shows an example of the waste pyrolysis processing apparatus which concerns on this invention.

Explanation of symbols

5 Waste input 10 Conveying inclined conveyor 11 High-frequency generator 15 Crushing device 20 Flake filling chamber 21 Drying chamber 22 Dechlorination chamber 23 Carbonization chamber 1
24 Carbonization chamber 2
25 Carbonization chamber 3
26 Cooling chamber 1
27 Cooling chamber 2
28 Cooling chamber 3
29 Opening / Closing Gate 30 Electric Heater 31 Heating Steam Heater 35 Container Return Conveyor 36 Container Transport Chain Conveyor 38 Container 90 ° Swivel Device 39 Container 90 ° Inversion Device 40 Flakes Transport Container 45 Heat Exchanger 47 Harmless Hot Water Extraction Port 48 Cooling Water Return Circuit 49 Cooling water delivery circuit 50 Scrubber 53 Chlorine gas recovery circuit 60 Nitrogen gas generator 62 Nitrogen gas supply circuit 1
63 Nitrogen gas storage tank 65 Nitrogen gas supply circuit 2
70 Hydrocarbon cooling tower 73 Hydrocarbon oil circuit 1
75 Hydrocarbon fractionator 77 Hydrocarbon oil circuit 80 after separation Hydrocarbon oil storage tank 85 Heavy oil supply circuit 86 Medium oil supply circuit 87 Light oil supply circuit 90 Heating steam generator 91 Auxiliary burner 95 Heating steam supply circuit 96 Heated steam discharge circuit 97 Condensing tower 98 Condensed water 99 Clean gas disposal tower

Claims (6)

A carbonizer that can automatically disinfect and sort all raw materials at low temperatures regardless of the type of waste. When the waste is input, the input gate opens. After the input, the gate is closed. After the gate is closed, the waste is sterilized with a high-frequency generator. After moving from the sterilization chamber to the crushing chamber, crushing with the rotary crushing blade and crushing is completed. A series of devices that open the lower gate and move the raw material to the lower moving device. Heated steam generation and supply device that dries and sterilizes waste with high water content. A series of devices that do not exhaust the high-temperature gas discharged in the process of carbonizing waste to the external environment, perform gas fractionation and recycle the gas, and recycle the gas. Combustion burner and fractionated gas supply device that operates with the supply of gas to be reused. A mobile automatic device that can form a single chamber by opening and closing the gate and continuously process a series of processing steps such as sterilization, crushing, drying, carbonization, and cooling of the raw material to which each chamber is moved.

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