JP3090722U - Waste treatment equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waste treatment device designed to take out combustible components from solid waste or liquid waste as combustible gas, and also take out residues as clinker and use them as useful materials. With the goal. SOLUTION: An inlet for charging solid waste is provided on a side of a furnace body of a combustible gas generating furnace, and an inlet for liquid waste is located above the inlet and opened into the furnace body. The furnace is equipped with a plasma torch that pyrolyzes both wastes by a plasma arc to generate flammable gas, and a flammable gas outlet at the upper part of the furnace that draws out flammable gas. And a residue outlet for discharging the residue at the lower part of the furnace body.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention mainly relates to a waste treatment apparatus for obtaining combustible gas from solid waste and liquid waste containing combustible components, such as medical waste and industrial waste.

[0002]

[Prior art]

 Generally, solid waste discharged from medical facilities such as hospitals is burned by incinerators using fossil fuels, etc., and the combustible components are incinerated. , Recovered in the form of ash. Depending on the combustion temperature in this incinerator, the residue may contain unburned residues. Such incinerators are expensive to use fossil fuels, etc., and it is difficult to use them as they are because residues include unburned residues.

[0003] In order to achieve complete combustion, in order to avoid oxygen depletion in the furnace, waste is introduced from the upper part of the furnace, and in the lower part of the furnace, a sufficient amount of air and fuel are supplied. A device has been devised to generate hot gas and incinerate the combustible components of waste during the rising process of the hot gas. However, even in this case, it is necessary to raise the furnace temperature to, for example, 20,000 degrees Celsius in order to fluidize the non-combustible components of the waste and take it out as clinker. For this reason, plasma torches are being used instead of fossil fuels.

[0004]

[Problems to be solved by the invention]

 An object of the present invention is to provide a waste treatment device that is devised so that flammable components are extracted from solid waste and liquid waste as combustible gas, and residues are also extracted as clinker and can be used as useful materials. .

[0005]

Means for Solving the Problems In order to achieve the above object, the waste treatment apparatus of the present invention is provided with an inlet for charging solid waste on the side of the furnace body of the combustible gas generating furnace, An inlet for liquid waste is provided above the inlet and opening into the furnace body. In the furnace body, both wastes are thermally decomposed by a plasma arc to generate combustible gas. The furnace is characterized by a combustible gas outlet for discharging combustible gas at the upper part of the furnace body and a residue outlet for discharging residue at the lower part of the furnace body.

In this case, the plasma torch is located at the center of the upper part of the furnace body and supplies heat energy to a waste in the furnace body to a high temperature at which the combustible component of the waste is ionized by the plasma arc. It is preferred that

Further, the furnace body is provided with a shell for partitioning a high-temperature region by plasma arc and a lower region for receiving the residue, and derivation of combustible gas led out of the furnace body from the combustible gas outlet. The path shall be equipped with gas cooling means for preventing the reaction between hydrogen gas and oxygen contained in the combustible gas, and shall be provided in a closed path between the discharge path of the combustible gas and the storage tank. It is a preferred embodiment of the present invention to include a deoxygenating means provided.

[0008]

[Embodiment of the invention]

 Hereinafter, embodiments of the waste disposal apparatus according to the present invention will be specifically described with reference to the drawings. This waste treatment apparatus is provided with an input port 17 (input channel) for charging solid waste 5 on the side of the furnace body 16 of the combustible gas generating furnace, and is located above the input port 17 and has a furnace interior 16. An injection port 18 (injection passage) for the liquid waste 6 is provided in the furnace body 16, and a plasma torch for generating a combustible gas by thermally decomposing both wastes by the plasma arc 1 is provided in the furnace body 16. The furnace body 16 is provided with a combustible gas outlet 28 for discharging combustible gas at an upper portion thereof, and a residue outlet 29 for discharging residue 8 at a lower portion of the furnace body 16.

The plasma torch 2 is located at the center of the upper part of the furnace body 16 and faces a waste in the furnace body 16. The plasma arc 1 is used to ionize combustible components of the waste by a high temperature, for example, 20 degrees Celsius. It is configured to supply thermal energy up to 000 degrees. In addition, the furnace body 16 is provided with a shell 31 for partitioning a high-temperature region by the plasma arc 1 and a lower region for receiving the residue. Note that the temperature is maintained at 3,000 to 9,000 degrees Celsius in the peripheral portion surrounding the high temperature region. The shell 31 is composed of an umbrella-shaped hood 30 and a residue tray 7, and its material is refractory.

A gas cooling means 33 for preventing a reaction between hydrogen gas and oxygen contained in the combustible gas is provided in a combustible gas outlet path 32 led out of the furnace body 16 from the combustible gas outlet 28. Have been. The gas cooling means 33 includes a heat exchange jacket 34, a supply port 22 for supplying the cooling water 10 thereto, and a discharge port 23 for discharging the hot water 11.

A closed path between the combustible gas outlet path 32 and the high-pressure combustible gas storage tank 13 is provided with a deoxygenating means 35, and a compressor is provided between the combustible gas outlet path 32 and the high-pressure combustible gas storage tank 13. 12 are provided. In the drawing, reference numeral 26 denotes a high-pressure flammable gas pressure regulator provided in the discharge path 14 of the high-pressure flammable gas storage tank 13. Reference numeral 3 denotes a power supply line to the plasma torch 2, 20 denotes a cooling water passage for cooling the plasma torch 2, 4 denotes cooling water, 9 denotes hot water, 19 denotes an inlet of the plasma cooling water passage 20, 21 Is an outlet.

In such a configuration, the solid waste 5 and / or the liquid waste 6 charged in the shell are thermally decomposed by the plasma arc 1 to gasify the combustible components and combustible from the top of the shell. It is led out of the furnace body 16 from the gas outlet 28. The non-combustible components of the waste (eg, metals such as iron, aluminum, and copper, glass, silica, and silicon oxide) are fluidized on the residue tray 7 at approximately 2,000 degrees Celsius, Through the residue discharge port, it is taken out as clinker, which becomes useful (as it contains no unburned components) as it is. The space in the shell is oxygen-deficient, the combustible components are ionized into molecular ions, and the water contained in the waste is decomposed into hydrogen ions and hydroxyl ions.

Then, the combustible gas is led from the combustible gas outlet 28 to the combustible gas outlet passage 32, and is cooled by the gas cooling means 33 to, for example, about 120 degrees Celsius, so that the hydrogen gas contained in the combustible gas is reduced. To prevent reaction with oxygen. After that, the deoxidizing means 35 separates and removes oxygen from the combustible gas, and pressurizes the deoxidized combustible gas, which avoids the danger of explosion due to the oxidation reaction, with the compressor 12 to generate a high-pressure combustible gas storage tank. 13. Note that, in addition to the deoxidizing means 35, a nitride removing means (not shown) may be included. The hot water 9, 7 obtained by cooling can be used as a heat energy source.

Therefore, the waste can be reused as combustible gas, and its residue can be reused as it is for a required purpose. Further, the thermal energy released by the plasma arc 1 is recovered by heat exchange when cooling the combustible gas or the plasma torch 2, and can be reused, so that the balance of the thermal energy is greatly improved.

[0015]

【The invention's effect】

 As described in detail above, the present invention has an excellent effect of extracting combustible components from solid waste and liquid waste as combustible gas, and also extracting residues as clinker, which can be used as useful materials.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing a configuration of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plasma arc 2 Plasma torch 3 Power supply line 4 Electrode cooling water 5 Solid waste 6 Liquid waste 7 Residual tray 8 Residue 9 Hot water 10 Gas cooling water 11 Hot water 12 Compressor 13 High pressure flammable gas storage tank 14 Discharge path ( (Gas fuel utilization: hot water heating, power generation, etc.) 16 Furnace body 17 Solid waste inlet 18 Liquid waste inlet 19 Electrode cooling water inlet 20 Plasma cooling water channel 21 Plasma water outlet 22 Gas cooling water inlet 23 Hot water drain Outlet 24 High-pressure flammable gas inlet 25 High-pressure flammable gas outlet 26 High-pressure flammable gas discharge regulator 28 Flammable gas outlet 29 Residue outlet 30 Hood 31 Shell 32 Flammable gas outlet 33 Gas cooling means 34 Heat exchange jacket 35 Deoxygenation means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshio Toki 3-16-10, Minato-ku, Tokyo 3-16-10 (72) Inventor Shinichi Shimizu 5-11-2-601, Nogatadai, Shinagawa-ku, Tokyo (72) Inventor Shigeyoshi Ohira 501-8-27-501 Tsunashimahigashi, Kohoku-ku, Yokohama-shi, Kanagawa-501

Claims (7)

[Utility model registration claims] 1. An inlet for liquid waste, which is provided on the side of the furnace body of the combustible gas generating furnace with an inlet for charging solid waste, and which is located above the inlet and opens into the furnace body. The furnace body is equipped with a plasma torch that pyrolyzes both wastes by a plasma arc to generate combustible gas, and a combustible gas that guides combustible gas to the upper part of the furnace body. A waste treatment device comprising a discharge port and a residue discharge port for discharging a residue in a lower part of the furnace body. 2. The plasma torch is located at the center of the upper part of the furnace body, and is configured to supply heat energy to a waste in the furnace body to a high temperature at which a combustible component of the waste is ionized by the plasma arc. Characterized by the fact that
The waste disposal device according to claim 1. 3. The waste treatment apparatus according to claim 1, wherein the furnace body is provided with a shell for partitioning a high-temperature region by a plasma arc and a lower region for receiving a residue. 4. A gas cooling means for preventing a reaction between hydrogen gas and oxygen contained in the combustible gas is provided on a passage for the combustible gas led out of the furnace from the combustible gas outlet. The waste disposal apparatus according to any one of claims 1 to 3, wherein 5. The waste according to claim 1, further comprising a deoxygenating means provided in a closed path between the flammable gas outlet path and the storage tank. Processing equipment. 6. The plasma arc is 20,000 degrees Celsius.
At about 0 ° C, it is discharged in the form of a shower in the high-temperature area, and 3,000 degrees Celsius is applied to the waste put in the furnace.
4. The waste disposal apparatus according to claim 3, wherein the thermal decomposition is performed in an atmosphere at a temperature of about 9,000 to 9,000 degrees. 7. The waste treatment apparatus according to claim 3, wherein the residue is fluidized at approximately 2,000 degrees Celsius on a residue tray in the lower region.