JPH06226234A - Carbonizing treatment of industrial waste - Google Patents

Abstract

PURPOSE:To enable carbonizing treatment of the wast such as a tire and plastic products in a short time by applying the carbonization accelerating agent composed of carbon on an industrial waste and subjecting the waste to pyrolysis and carbonization by irradiation of a magnetic wave in a vacuum atmosphere. CONSTITUTION:In the case of carbonizing the wast tire, the wast tire coated with the carbonization accelerating agent composed of a pulverized carbon is thrown into a pyrolysis furnace 1. The pyrolysis furnace 1 is connected successively to a radio wave generating device 2 through an incombustible gas generating equipment 3 feeding the incombustible gas to prevent ignition, and by irradiating the wast tire placed under a vacuum atmosphere with the magnetic wave generated here, the wast tire is thermally decomposed and carbonized. The generated gas at this time is sucked by the actuation of a suction pump 6 and liquefied by a cooling equipment 4 on the way, and a liquefied gas is recovered in a liq. recovering tank 5. As the carbonization accelerating agent, further, the material compounded with an iron powder, carbon and vermiculite, etc., is used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for carbonizing industrial waste, and in particular, high molecular waste such as used tires and plastic products which are harmful to the environment when burned and generate harmful gas. The present invention relates to a method for carbonizing industrial waste, which uses microwave energy to carbonize (decompose) carbon dioxide in a short time without releasing harmful gas into the air.

[0002]

2. Description of the Related Art Conventionally, a radio wave generator has been used to treat industrial waste, such as waste tires, plastic products, etc., which produces harmful gases when burned and does not decay even when discarded. A method of irradiating a magnet wave to thermally decompose a waste tire to carbonize it is adopted. However, since about 20 years ago, it was discovered that tires can obtain a rubber-like substance (urethane rubber) by the reaction of liquid polyester or liquid polyether with diisocyanate, especially cast tires that do not require reinforcement of carbon black. There is a tire called. Therefore,
The waste tires manufactured and used recently are heated only by the irradiation of the magnet wave by the radio wave generator like the conventional treatment method, and the generated gas due to the thermal decomposition is not generated.
That is, a tire that does not contain a component that causes thermal decomposition, for example, a tire that does not include carbon that emits high heat by being collected by irradiated magnet waves does not cause thermal decomposition to generate product gas. According to the method, the above-mentioned decomposition treatment of tires manufactured in recent years cannot be carried out, and along with the rapid development of the automobile industry, the number of used tires has increased, and it is impossible to dispose of them. There is.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of such conventional circumstances, and a short time is obtained by irradiating a magnetic wave to industrial waste such as tires and plastic products which do not contain carbon. It is an object of the present invention to provide a newly developed method for carbonizing a high-molecular-weight waste that is capable of being thermally decomposed by means of, and generating a generated gas for carbonization.

[0004]

To achieve the above object, the technical means taken by the present invention is to apply a carbonization promoter made of carbon to industrial waste, and to generate a radio wave generator in a vacuum atmosphere. By irradiating with a magnet wave, the waste is thermally decomposed and carbonized, and the produced gas is recovered. In addition, apply a carbonization accelerator containing iron powder, carbon, slag, etc. to industrial waste,
It is characterized in that the waste is irradiated with a magnet wave in a vacuum atmosphere by a radio wave generator to thermally decompose and carbonize the waste and recover the produced gas.

[0005]

According to the above-mentioned technical means of the present invention, when the electromagnetic wave generator irradiates the magnet wave with the magnet wave, the irradiated magnet wave causes a short circuit due to contact with the carbonization promoter, thereby generating high heat. The generated industrial waste, for example, used tires are pyrolyzed, and the waste tires generate a gas produced by the thermal decomposition. The waste tires are carbonized and the generated gas is recovered.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Explaining one example of the present invention, FIG. 1 is a block diagram of the whole apparatus for carrying out the method for carbonizing waste according to the present invention, in which 1 is a pyrolysis reactor for putting in waste tires. , 2 2450 ± waste tires is charged into the reactor 1 50 mH _Z
, A non-combustible gas generator for sending non-combustible gas to the reactor 1 to prevent ignition, and 4 for irradiating magnet waves with industrial waste such as waste tires (polymer waste). Cooling device for cooling and liquefying the product gas generated from the product), 5 is a liquid recovery tank for recovering the product gas liquefied by the cooling device 4, and 6 is aspirator for eliminating oxygen (internal air) in the reactor 1. Is a suction pump for keeping the inside of the reaction furnace 1 in a vacuum atmosphere. The waste tire coated with a carbonization accelerator is put into the reaction furnace 1, and a radio wave generator 2 irradiates a magnet wave to remove the waste tire. It is configured to be carbonized. In the figure, 7 is an adjusting valve for adjusting the amount of non-combustible gas supplied to the thermal decomposition reaction furnace 1, and 8 is a check valve attached to the connecting pipe portion between the thermal decomposition reaction furnace 1 and the cooling device 4. .

As the carbonization accelerator, finely divided carbon so-called ink or 40% finely divided iron powder, 40% carbon,
It is made by mixing 20% of leeches (vermiculite) with wheat flour or udon powder in a weight ratio and blending it, and fixing and coating it on the inner and outer surfaces of a waste tire by an appropriate coating means such as spraying. In addition, in the case of carbonization accelerators with iron powder, carbon, and pebbles behind them, iron powder has a heavier specific gravity than other components, so only iron powder is sprayed onto the inner and outer surfaces of the waste tire by a compression pump, etc. It is also good to apply fixing.

According to the method for carbonizing industrial waste of the present invention, after the carbonization accelerator is sprayed onto the inner and outer surfaces of the waste tire to fix and apply the waste tire, the waste tire is evacuated by the suction pump 5. It is charged into the pyrolysis reaction furnace 1 which is kept and filled with the non-combustible gas by the non-combustible gas generator 3, and the radio wave generator 2 irradiates the magnet wave.
Then, the irradiated magnet wave causes a short circuit due to contact with the carbonization accelerator fixedly applied to the inner and outer surfaces of the waste tire, and the waste tire emits high heat in a short time and is thermally decomposed.
As a result, a gas produced by thermal decomposition is generated from the waste tire, the waste tire is carbonized, and the generated gas is cooled and liquefied by the cooling device 4 and recovered in the liquid recovery tank 5.

The carbonization method of the present invention is not limited to the carbonization of waste tires, but can be a plastic product that can be carbonized.
It is also possible to carbonize industrial polymer waste of synthetic materials or wood.

[0010]

Since the method for carbonizing industrial waste according to the present invention is constructed as described above, the heat generated by the radio wave generator for generating the generated gas only by heating the magnet wave is increased. Industrial wastes, such as tires and plastic products, which do not decompose can generate high heat by irradiation of a magnet wave to cause thermal decomposition and generate generated gas. Therefore, by irradiating a high-polymer waste such as a tire not containing carbon, a plastic product, or the like with a magnetic wave, the waste is thermally decomposed in a short time, and a generated gas is generated to be carbonized. It was possible to provide an epoch-making method of carbonizing high-molecular waste.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of an apparatus for carrying out a waste carbonization treatment method of the present invention.

[Explanation of symbols]

1 ... Pyrolysis reactor 2 ... Radio wave generator

Claims (2)

[Claims] 1. A carbonization accelerator made of carbon is applied to industrial waste, and the waste is thermally decomposed and carbonized by irradiating the waste with a magnet wave by a radio wave generator in a vacuum atmosphere to generate gas. A method for carbonizing industrial waste, characterized in that 2. An industrial waste material is coated with a carbonization promoter mixed with iron powder, carbon, leucite, etc., and the waste material is irradiated with a magnet wave by a radio wave generator in a vacuum atmosphere to remove the waste material. A method for carbonizing industrial waste, characterized by pyrolyzing and carbonizing and recovering the produced gas.