JP2007211992A - Waste treatment equipment and waste treatment method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide compact waste treatment equipment of high safety capable of increasing a combustion temperature in a melting furnace to 1,500-2,000°C. <P>SOLUTION: This wastes treatment equipment 100 comprises a hydrogen-oxygen generating device 110 for supplying a hydrogen-oxygen mixture gas, a primary furnace 130 for treating a treated object 322 by burning the hydrogen-oxygen mixture gas, a combustion nozzle 142 for burning the hydrogen-oxygen mixture gas, and an ignition device 144 for igniting the hydrogen-oxygen mixture gas. A burner 210 constituting the combustion nozzle includes a nozzle body 212 of a sealed structure having a hollow plenum 216. The nozzle body 212 has a plurality of gas ports 218 arranged to circulate the hydrogen-oxygen mixture gas to the plenum 216 for jetting the same. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a waste treatment apparatus such as contaminated soil and asbestos, and a waste treatment method. In particular, the present invention is a waste that effectively disposes waste by decomposing water into hydrogen gas and oxygen gas, and completely burning the gas from a hydrogen oxygen generator that supplies hydrogen-oxygen mixed gas as fuel in a burner. The present invention relates to a material processing apparatus and a waste processing method.

  A conventional waste treatment method includes a fuel supply device that supplies fuel into a furnace body, an oxygen-containing gas supply device that supplies oxygen-containing gas into the furnace body, a fuel supply fee, and an oxygen-containing gas supply fee; The control apparatus which controls is provided. In the furnace body, the waste is heated to 1200 ° C or more and burned. Convert to melt and combustion gas. The melt is cooled and recovered by the liquid in the water bath. The combustion gas is cooled to 200 ° C. or less by water cooling in the exhaust treatment device (see, for example, Patent Document 1).

  In a conventional municipal waste incineration / melting furnace, six pairs of mixed gas injection craters connected to a hydrogen / oxygen mixed gas generator are arranged in the incineration / melting furnace in the horizontal direction. Yes. The hydrogen / oxygen mixed gas generator includes a gas purifier that removes alkali from the hydrogen / oxygen mixed gas generated in the electrolysis cell (see, for example, Patent Document 2).

  In the conventional asbestos melting furnace, a mixed gas of propane gas and high-pressure oxygen is heated to about 1500 ° C. and burned in the melting furnace. Referring to FIGS. 17 and 18, a combustion crater 900 disposed in the melting furnace includes a cylindrical crater body 910 and a crater base 920 disposed on the lower surface of the crater body 910. The crater body 910 has a diameter of 98 mm and a thickness of 30 mm. The crater base 920 is formed to have a diameter of 36 mm and a thickness of 24 mm. An air intake hole 912 is disposed on the outer peripheral cylindrical surface 910 b of the crater body 910. Sixteen air intake holes 912 have a diameter of 3 mm and are provided at equal angular intervals in the circumferential direction of the outer peripheral cylindrical surface 910b of the crater body 910. A gas outlet 902 is disposed on the upper surface 910 c of the crater body 910. The gas outlets 902 have a diameter of 18 mm, and are provided on the upper surface 910c of the crater body 910 at equal angular intervals. A heat shield 904 is disposed on the upper surface of each gas outlet 902.

JP 2002-195520 A (pages 4-5, FIG. 1) Utility Model Registration No. 3039292 (pages 5-7, FIG. 1) Utility Model Registration No. 3045095 (pages 5-7, FIG. 1) Utility Model Registration No. 3068293 (pages 5-7, FIG. 1)

  In conventional waste treatment furnaces and asbestos melting furnaces, a mixed gas of propane gas and high-pressure oxygen is used, so that the combustion temperature can only be increased to about 1200 ° C to 1500 ° C. When high-pressure oxygen was used, the combustion temperature could only be raised to about 1400 ° C. On the other hand, in order to treat PCB soil, it is necessary to raise the combustion temperature to 1800 ° C to 2000 ° C. Therefore, PCB soil cannot be treated effectively in conventional waste treatment furnaces and asbestos melting furnaces. In addition, an incineration / melting furnace using a conventional hydrogen / oxygen mixed gas generator requires a large number of mixed gas ejection craters, and the structure of the apparatus is complicated and large, and exhaust gas generated by combustion is effectively treated. I couldn't. Since the combustion crater arranged in the conventional asbestos melting furnace is provided with an air intake hole 912 in the outer peripheral cylindrical surface 910b of the crater body 910, such a combustion crater generates conventional hydrogen / oxygen mixed gas. It could not be applied to incineration and melting furnaces using equipment.

An object of the present invention is to provide a waste treatment apparatus configured to increase the combustion temperature in a melting furnace to 1800 ° C. to 2000 ° C. and to effectively treat PCB soil and the like. There is.
Another object of the present invention is to provide a waste treatment apparatus and a waste treatment method that are configured to be highly safe and have no danger of causing a gas explosion.
Another object of the present invention is to provide a waste treatment apparatus capable of forming a facility apparatus in a compact manner.

Another object of the present invention is to provide a waste treatment method capable of raising the combustion temperature in the melting furnace to 1800 ° C to 2000 ° C and effectively treating PCB soil and the like. It is in.
Another object of the present invention is to provide a waste disposal method that is highly safe and has no danger of causing a gas explosion.

The present invention is a waste treatment apparatus for treating waste,
A hydrogen-oxygen generator for decomposing water into hydrogen gas and oxygen gas and supplying the generated hydrogen-oxygen mixed gas;
A mixed gas combustion device for receiving waste and treating the waste by burning a hydrogen-oxygen mixed gas;
A combustion crater disposed inside the mixed gas combustion device and receiving the hydrogen oxygen mixed gas from the hydrogen oxygen generator and burning the hydrogen oxygen mixed gas;
An ignition device that is disposed inside the mixed gas combustion device and ignites a hydrogen-oxygen mixed gas injected from the combustion crater;
The mixed gas combustion apparatus includes a processed material input unit for receiving waste, a processed waste discharge unit for discharging processed waste processed by burning a hydrogen-oxygen mixed gas, and a combustion exhaust gas. An exhaust gas discharge part for discharging,
The combustion crater includes a closed crater body having a hollow plenum,
The crater body circulates in the plenum for injecting a hydrogen-oxygen mixed gas introduction unit for receiving a hydrogen-oxygen mixed gas from the hydrogen-oxygen generator and injecting the hydrogen-oxygen mixed gas into the mixed gas combustion device. A plurality of gas outlets arranged in a row. The waste treatment apparatus of the present invention having this configuration is suitable for environmental protection and can reliably decompose harmful substances at high temperatures.

  The waste treatment apparatus of the present invention further includes a gas heating device for receiving combustion exhaust gas from the exhaust gas discharge unit and heating the combustion exhaust gas, and is disposed inside the gas heating device, and the hydrogen oxygen generation A hydrogen crater for a gas heating device for receiving a hydrogen-oxygen mixed gas from the apparatus and combusting the hydrogen-oxygen mixed gas; and disposed inside the gas heating apparatus and injected from the combustion crater for the gas heating apparatus And a mixed gas ignition device for igniting the hydrogen-oxygen mixed gas. With this configuration, the processing equipment can be made compact.

  The waste treatment apparatus of the present invention preferably further includes a heated exhaust gas cooling device for receiving the heated exhaust gas from the exhaust gas discharge portion of the gas heating device and cooling the heated exhaust gas. In the waste treatment apparatus of the present invention, it is preferable that the plurality of gas ejection ports are arranged at equal angular intervals in the circumferential direction. In the waste treatment apparatus of the present invention, the plurality of gas ejection ports can be configured by a set of a plurality of gas ejection ports arranged at equal angular intervals in the circumferential direction.

Further, the present invention is a combustion crater used in the above-described waste treatment apparatus, wherein a plurality of combustion craters for receiving a hydrogen-oxygen mixed gas from a hydrogen-oxygen generator and burning the hydrogen-oxygen mixed gas are provided. The gas outlets are arranged at equal angular intervals in the circumferential direction. Since the waste treatment apparatus of the present invention uses a hydrogen oxygen generator, the safety is high and there is no danger of causing a gas explosion.

  In the combustion crater for receiving the hydrogen-oxygen mixed gas from the hydrogen-oxygen generator and combusting the hydrogen-oxygen mixed gas, a plurality of gas jets are arranged at equal angular intervals in the circumferential direction. The inner diameter of each gas outlet is 0.3 to 5 mm. With this configuration, it is possible to realize a waste treatment apparatus that is highly safe and has no danger of causing a gas explosion.

Further, the present invention is a method for treating waste,
Providing a mixed gas combustion device for receiving waste and processing the waste;
Introducing waste into the mixed gas combustion device;
Decomposing water into hydrogen gas and oxygen gas to generate a hydrogen-oxygen mixed gas;
Receiving a hydrogen-oxygen mixed gas in the mixed gas combustion device, injecting the hydrogen-oxygen mixed gas from a combustion crater, and burning it;
Discharging the burned treated waste,
The combustion crater includes a closed crater body having a hollow plenum,
The crater body has a hydrogen-oxygen mixed gas introducing portion for receiving a hydrogen-oxygen mixed gas, and a plurality of gas jets arranged to flow to the plenum for injecting the hydrogen-oxygen mixed gas. Features. By using this method, harmful substances can be reliably decomposed at high temperatures. Furthermore, since the waste treatment method of the present invention uses a hydrogen oxygen generator, the safety is high and there is no danger of causing a gas explosion.

The method of the present invention further includes the step of receiving the combustion exhaust gas from the exhaust gas discharge part of the mixed gas combustion device and heating the combustion exhaust gas, and the heating of the combustion exhaust gas receives the hydrogen oxygen mixed gas and the hydrogen oxygen It may be performed by burning a mixed gas.
The method of the present invention may further include receiving the heated exhaust gas and cooling the heated exhaust gas.

  The waste treatment apparatus of the present invention uses an oxygen generation apparatus that decomposes water into hydrogen gas and oxygen gas, and supplies and supplies these gases as fuel. Therefore, it is environmentally friendly, economical, and safe. In other words, the waste treatment apparatus of the present invention is suitable for environmental protection, and can reliably decompose contaminated soil containing harmful substances (PCB and the like) and harmful substances such as asbestos at high temperatures. Furthermore, since the waste treatment apparatus of the present invention uses a hydrogen oxygen generator, the safety is high and there is no danger of causing a gas explosion. Moreover, by using the waste treatment apparatus of the present invention, the treatment facility apparatus can be made compact.

  By using the waste treatment method of the present invention, it is possible to reliably decompose contaminated soil containing harmful substances (such as PCB) and harmful substances such as asbestos at high temperatures. Furthermore, since the waste treatment method of the present invention uses a hydrogen oxygen generator, the safety is high and there is no danger of causing a gas explosion.

Embodiments of the present invention will be described below with reference to the drawings.
(1) First embodiment:
First, a first embodiment of the waste treatment apparatus of the present invention will be described. In the description of the present invention, “waste” is a concept that includes contaminated soil containing hazardous substances such as PCB, asbestos, various industrial wastes, various medical wastes, municipal waste, livestock excrement and the like. is there.

  1 and 2, in the first embodiment of the waste treatment apparatus of the present invention, a waste treatment apparatus 100 for treating waste decomposes water into hydrogen gas and oxygen gas, The hydrogen-oxygen generator 110 for supplying the generated hydrogen-oxygen mixed gas and the waste, that is, the treated product 122, and the waste, that is, the treatment, by burning the hydrogen-oxygen mixed gas received from the hydrogen-oxygen generating device 110 A melting furnace, that is, a primary furnace 130 constituting a mixed gas combustion apparatus for treating the product 122, and a hydrogen-oxygen mixed gas that is disposed inside the primary furnace 130 and receives a hydrogen-oxygen mixed gas from the hydrogen-oxygen generator 110, A burner 142 that constitutes a combustion crater for burning gas; and a burner 142 that is disposed inside the primary furnace 130 and is fired from a gas outlet of the burner 142. And a spark device 144 constituting the ignition device for igniting the hydrogen-oxygen mixed gas.

  The primary furnace 130 includes a charging device 120 that constitutes a processing material input unit for receiving a waste material, that is, a processing material 122, and a processed waste material for discharging the processed waste material processed by burning the hydrogen-oxygen mixed gas. A discharge conveyor 146 that constitutes an object discharge unit and a discharge pipe 132 that constitutes an exhaust gas discharge unit for discharging combustion exhaust gas are provided.

  The waste treatment apparatus 100 further includes a secondary furnace 160 that constitutes a gas heating device that receives the combustion exhaust gas from the melting furnace discharge pipe 132 and heats the combustion exhaust gas. A burner 162 constituting a combustion crater for the gas heating device is disposed inside the secondary furnace 160. The burner 162 is configured to receive a hydrogen-oxygen mixed gas from the hydrogen-oxygen generator 110 and burn the hydrogen-oxygen mixed gas. The spark device 164 is disposed inside the secondary furnace 160 and constitutes an ignition device for igniting the hydrogen-oxygen mixed gas injected from the gas outlet of the burner 162. The exhaust pipe 168 constitutes an exhaust gas exhaust unit for exhausting combustion exhaust gas from the secondary furnace 160.

  The waste treatment apparatus 100 further includes an exhaust gas treatment apparatus 170 that constitutes a heated exhaust gas cooling apparatus that receives the heated exhaust gas from the discharge pipe 168 of the secondary furnace 160 and cools the heated exhaust gas. The treatment exhaust pipe 178 constitutes a treated exhaust gas discharge unit for discharging the treated exhaust gas from the exhaust gas treatment device 170. An exhaust cylinder 180 is provided for receiving the treated exhaust gas from the treatment exhaust pipe 178 and discharging the exhaust gas 190 to the atmosphere.

  The structure of the hydrogen oxygen generator applicable to the waste treatment apparatus 100 of the present invention is described in, for example, Utility Model Registration No. 3045095 (Patent Document 3), Utility Model Registration No. 3068293 (Patent Document 4), and the like. ing. As the hydrogen-oxygen generator 100 applied to the waste treatment apparatus of the present invention, for example, “hydrogen-oxygen flame generation” commercially available from ECG TRADERS COMPANY (ECG) “Equipment” models “EP-500”, “EP-560”, “EP-1000” and the like can be used. In such a hydrogen oxygen generator, the volume ratio of hydrogen to oxygen is hydrogen 2: oxygen 1. If this balance is lost, the combustion state cannot be controlled, and there is a risk of accidents such as flashback and explosion. When such a hydrogen oxygen generator is used, since about 30% of oxygen is contained in the combustion gas, it is not necessary to supply combustion oxygen or the like from the outside.

  Referring to FIG. 3, the hydrogen oxygen generator 110 includes an electrolytic tank 112 and a cooling device 116. The electrolytic solution is accommodated in the electrolytic tank 112. A plurality of electrolytic plates 112 b are disposed in the electrolytic tank 112. An upper hole is formed in the upper part of the electrolytic plate 112b. A bottom hole is formed below the electrolytic plate 112b. The upper tube 112c is provided so as to be able to flow through the upper hole. A bottom tube 112d is provided so as to be able to flow through the bottom hole. A large number of through holes 112h are formed in the upper tube 112c. A large number of through holes 112j are formed in the bottom tube 112d. The bottom pipe 112d is connected to the cooling device 116 through the water discharge pipe 112e. The cooling device 116 is connected to the upper pipe 112c through the water inlet pipe 116b. The electrolytic solution in the electrolytic tank 112 can be circulated through the cooling device 116.

  Air conduction holes 112f are formed at the top of each electrolytic plate 112b. By providing the air introduction hole 112 f, the upper space in the electrolytic tank 112 is configured to communicate with both ends in the electrolytic tank 112. An outlet pipe 112 g is attached above one end of the electrolytic tank 112. The hydrogen-oxygen mixed gas generated in the electrolytic tank 112 is supplied to a necessary place through the outlet pipe 112g. Injection pipe 114b is connected to water inlet pipe 116b. The injection pipe 114b is connected to the electrolyte injection device 114 via the check valve 114c.

  The electrolytic solution is injected into the electrolytic tank 112 to a predetermined level by the electrolytic solution injector 114. Pure distilled water or soft water is used as the electrolytic solution. A hydrogen-oxygen mixed gas, which is a mixture of hydrogen and oxygen, is generated in the electrolytic tank 112 by the electrolytic action of the electrolytic plate 112b. The generated hydrogen-oxygen mixed gas gathers in the upper space in the electrolytic tank 112, and is taken out from the outlet pipe 112g through the air introduction hole 112f. The heated electrolyte is sent to the cooling device 116 through the water discharge pipe 112e and cooled by the cooling device 116. The cooled electrolytic solution is introduced into the electrolytic tank 112 from the through hole 112h of the upper pipe 112c through the water intake pipe 116b. During operation of the hydrogen oxygen generator 110, when the electrolytic solution decreases and falls below a certain level, the level control switch 118b of the liquid level indicator 118 is activated, and the electrolytic solution is injected by the electrolytic solution injector 114. It is poured into the electrolytic tank 112 until it reaches a predetermined level.

Referring to FIG. 4, the primary furnace 130 may be designed to have, for example, internal dimensions of W1200 mm * L1200 mm * H1100 mm and an internal volume of 1.584 m ³ (cubic meter). The design temperature in the furnace of the primary furnace 130 can be designed to be in the range of 1500 ° C. to 1700 ° C., for example. The material which comprises the primary furnace 130 can be made into SS400 casing and a castable refractory material, for example. The primary furnace 130 can constitute a melting furnace. The input device 120 is provided above the primary furnace 130 for receiving waste or processed material 122. The charging device 120 can be constituted by, for example, a pusher type charging device. The pusher 124 can be driven by a hydraulic cylinder. The waste, that is, the processed material 122 introduced from the waste input port 126 is configured to be sent to the inside of the primary furnace 130 by the pusher 124. The input port lid 126b is provided so as to be opened and closed by rotating with respect to the waste input port 126. The size of the waste inlet 126 can be designed to be 500 mm * 500 mm, for example.

  The discharge conveyor 146 is provided below the primary furnace 130 in order to discharge the processed waste processed by burning the hydrogen-oxygen mixed gas in the furnace of the primary furnace 130 through the waste outlet 130c. The discharge conveyor 146 can be driven by a geared motor. A primary furnace exhaust gas outlet 130 f for discharging combustion exhaust gas is provided in the upper part of the primary furnace 130. The primary furnace exhaust pipe 132 is connected to the primary furnace exhaust gas outlet 130f. A confirmation window 130 c for confirming the internal state of the primary furnace 130 is provided on the side surface of the primary furnace 130. A burner attachment portion 130 k for attaching the burner 142 is provided on the side surface portion of the primary furnace 130. A plurality of burner attachment portions 130k are preferably provided on the side surface portion of the primary furnace 130. For example, four burner attachment portions 130k are provided in the primary furnace 130. A primary furnace spark device 144 is disposed inside the primary furnace 130. A thermometer (not shown) for checking the temperature inside the primary furnace 130 is provided inside the primary furnace 130.

Referring to FIG. 5, the secondary furnace 160 can be designed to have, for example, internal dimensions of W1000 mm * H1000 mm * L2000 mm and an internal volume of 2 m ³ (cubic meter). The design temperature in the furnace of the secondary furnace 160 can be designed to be 1900 ° C., for example. The material which comprises the secondary furnace 160 can be made into SS400 casing and a castable refractory material, for example. The secondary furnace 160 can constitute a pyrolysis furnace. The inlet gas temperature of the secondary furnace 160 can be designed to be 650 ° C., for example. The outlet gas temperature of the secondary furnace 160 can be designed to be 1700 ° C., for example. The gas amount of the secondary furnace 160 can be designed to be, for example, 440 Nm ³ / hr (Newton * cubic meter / hour).

  An exhaust gas inlet 160 b for introducing the exhaust gas is provided on the side surface of the secondary furnace 160. The primary furnace discharge pipe 132 is connected to the exhaust gas inlet 160b. A secondary furnace exhaust gas discharge port 160 f for discharging the secondary furnace exhaust gas is provided in the upper part of the secondary furnace 160. The secondary furnace discharge pipe 168 is connected to the secondary furnace exhaust gas discharge port 160f. A confirmation window 160 c for confirming the internal state of the secondary furnace 160 is provided on the side surface of the secondary furnace 160. A burner mounting portion 160 k for mounting the burner 162 is provided on the side surface portion of the secondary furnace 160. A plurality of burner attachment portions 160k may be provided on the side surface portion of the secondary furnace 160. For example, two burner mounting portions 160k are provided in the secondary furnace 160. A thermometer (not shown) for confirming the temperature inside the secondary furnace 160 is provided inside the secondary furnace 160. A secondary furnace spark device 164 is disposed inside the secondary furnace 160.

Referring to FIGS. 1 and 2, the exhaust gas treatment device 170 includes a separator 172. A jet scrubber 174 is provided at the inlet for the secondary furnace exhaust gas of the separator 172. The secondary furnace exhaust gas is configured to be introduced into the separator 172 from the jet scrubber 174 through the secondary furnace discharge pipe 168. Referring to FIG. 6, the jet scrubber 174 includes a curved inlet conduit 174b and a tapered outlet conduit 174c with a widened tip. The downstream end of the inlet conduit 174b is connected to the upstream end of the outlet conduit 174c. The upstream end of the inlet conduit 174 b is connected to the secondary furnace discharge pipe 168. The downstream end of the outlet pipe 174 c is connected to the upper part of the separator 172. The material constituting the jet scrubber 174 can be, for example, Hastelloy C. The inlet gas temperature of the jet scrubber 174 can be designed to be 1700 ° C., for example. The outlet gas temperature of the jet scrubber 174 can be designed to be 100 ° C., for example. The gas amount of the jet scrubber 174 can be designed to be, for example, 440 Nm ³ / hr (Newton * cubic meter / hour).

  Referring to FIG. 7, the separator 172 may be a steel plate box type separator. The separator 172 can be designed to have internal dimensions of, for example, 1000 mm * 1500 mm * 2500 mm. The material forming the separator 172 can be, for example, SUS316. A thermometer (not shown) and a liquid level gauge (not shown) are provided on the separator 172. An inlet 172 b for receiving the secondary furnace exhaust gas from the jet scrubber 174 is provided on the upper portion of the separator 172. A treated exhaust gas outlet 172d for discharging the treated exhaust gas from the exhaust gas treatment device 170 is provided in the upper part of the separator 172. The upstream end of the treatment exhaust pipe 178 is connected to the treated exhaust gas outlet 172d. A required amount of water (for example, tap water) is supplied into the separator 172. The water inside the separator 172 is purified through the strainer 176 and sent to the jet scrubber 174 by the operation of the circulating water pump 177. The downstream end of the processing discharge pipe 178 is connected to the upstream end of the exhaust pipe 180. A neutralizer injector 175 is provided to supply the neutralizer to the separator 172.

  Referring to FIGS. 1 and 2, the exhaust stack 180 includes an upstream end 180b, an intermediate portion 180c, and a downstream end 180d. The upstream end 180 b is connected to the downstream end of the processing discharge pipe 178. The exhaust cylinder 180 can be formed of a thin stainless steel pipe. The treated exhaust gas received from the treated exhaust pipe 178 is configured to exhaust the exhaust gas 190 to the atmosphere through the exhaust pipe 180. The upstream end portion 180b is preferably configured to have a curved portion. The intermediate portion 180c is preferably configured to have a straight portion. The downstream end portion 180d is preferably configured to have a curved portion. An attraction fan 179 is provided in the process discharge pipe 178. By the operation of the induction fan, the exhaust gas 190 is discharged from the downstream end 180d to the atmosphere.

  The structure of the first type combustion crater or burner 210 will be described with reference to FIGS. The burner 210 includes a cylindrical crater body 212, a hexagonal crater protrusion 214 disposed on the upper surface of the crater body 212, and a hydrogen-oxygen mixed gas introduction part 212 d for receiving a hydrogen-oxygen mixed gas from the hydrogen-oxygen generator 110. With. It has. The burner 210 can be made of SUS303, brass or the like. The crater body 212 can be formed to have a diameter of 45 mm or 60 mm and a thickness of 23 mm. The crater protrusion 214 can be formed such that the distance between two opposing sides is 17 mm and the thickness is 7 mm. The crater body 212 has a sealed structure and does not have an air intake hole on the outer peripheral cylindrical surface. A hollow and cylindrical plenum (charging chamber) 216 is formed inside the crater body 212. The plenum (charging chamber) 216 can be formed to have a diameter of 40 mm and a thickness of 8 mm.

  A plurality of gas ejection ports 218 are disposed on the upper surface 212 c of the crater body 212. The gas outlets 218 have a diameter of 3 mm and are provided on the upper surface 212c of the crater body 212 at equal angular intervals along the circumferential direction. Each gas outlet 218 communicates with a plenum (charging chamber) 216. The diameter of the gas outlet 218 is preferably 0.3 to 5 mm. The diameter of the gas outlet 218 is more preferably 0.5 to 3.5 mm. Even more preferably, the diameter of the gas outlet 218 is 1.5-3 mm. By setting it as such a dimension, hydrogen-oxygen mixed gas can be burned efficiently.

The hydrogen-oxygen mixed gas introduction part 212d is provided in the lower part of the crater body 212. The hydrogen-oxygen mixed gas introduction part 212 d communicates with a plenum (charging chamber) 216. The hydrogen-oxygen mixed gas introduction section 212d is connected to the outlet pipe 112g of the hydrogen-oxygen generator 110 through a conduit. It is preferable that a plurality of gas ejection ports 218 are provided. Although a configuration in which eight gas outlets are provided is illustrated, the number of gas outlets 218 may be two, or may be three or more. Since the gas outlet 218 has a diameter of 3 mm, the opening area is about 9.42 mm ² . Accordingly, the total opening area of the eight gas outlets 218 is about 75.36 mm ² . On the other hand, the opening area of the pipe is about 86.35 mm ² . Therefore, the effective flow rate of the hydrogen-oxygen mixed gas ejected from the gas ejection port 218 is 87%. The distal end portion 144 b of the spark device 144 is disposed in the vicinity of the gas ejection port 218. The spark control device (not shown) is configured to control the operation of the spark device 144 to generate a spark at the front end portion 144b of the spark device 144 and to burn the hydrogen-oxygen mixed gas safely and reliably. Is done.

  The structure of the first type combustion crater or burner 210 will be described with reference to FIGS. The burner 210 includes a cylindrical crater body 212, a circular or hexagonal crater protrusion 214 disposed on the upper surface of the crater body 212, and a hydrogen-oxygen mixed gas introduction for receiving a hydrogen-oxygen mixed gas from the hydrogen-oxygen generator 110. 212d. The burner 210 can be made of SUS303, brass or the like. The crater body 212 can be formed to have a diameter of 45 mm or 60 mm and a thickness of 23 mm. The crater protrusion 214 can be formed such that the distance between two opposing sides is 17 mm and the thickness is 7 mm. The crater body 212 has a sealed structure and does not have an air intake hole on the outer peripheral cylindrical surface. A hollow and cylindrical plenum (charging chamber) 216 is formed inside the crater body 212. The plenum (charging chamber) 216 can be formed to have a diameter of 40 mm and a thickness of 8 mm.

  A plurality of gas ejection ports 218 are disposed on the upper surface 212 c of the crater body 212. The gas outlets 218 have a diameter of 3 mm and are provided on the upper surface 212c of the crater body 212 at equal angular intervals along the circumferential direction. Each gas outlet 218 communicates with a plenum (charging chamber) 216. The diameter of the gas outlet 218 is preferably 0.3 to 5 mm. The diameter of the gas outlet 218 is more preferably 0.5 to 3.5 mm. Even more preferably, the diameter of the gas outlet 218 is 1.5-3 mm. By setting it as such a dimension, hydrogen-oxygen mixed gas can be burned efficiently.

The hydrogen-oxygen mixed gas introduction part 212d is provided in the lower part (upstream side) of the crater body 212. The hydrogen-oxygen mixed gas introduction part 212 d communicates with a plenum (charging chamber) 216. The hydrogen-oxygen mixed gas introduction section 212d is connected to the outlet pipe 112g of the hydrogen-oxygen generator 110 through a conduit. It is preferable that a plurality of gas ejection ports 218 are provided. Although a configuration in which eight gas ejection ports 218 are provided is illustrated, the number of gas ejection ports 218 may be two or may be three or more. Since the gas outlet 218 has a diameter of 3 mm, the opening area is about 9.42 mm ² . Accordingly, the total opening area of the eight gas outlets 218 is about 75.36 mm ² . On the other hand, the opening area of the pipe is about 86.35 mm ² . Therefore, the effective flow rate of the hydrogen-oxygen mixed gas ejected from the gas ejection port 218 is 87%. A distal end portion 144 b (shown by an imaginary line) of the spark device 144 is disposed in the vicinity of the gas ejection port 218. A spark control device (not shown) controls the operation of the spark device 144 to generate a spark at the tip 144b of the spark device 144, so that the hydrogen-oxygen mixed gas ejected from the gas ejection port 218 can be safely and reliably produced. It is configured to be able to burn.

  The waste treatment apparatus 100 of the present invention using the burner 210 configured as described above can raise the combustion temperature in the melting furnace, that is, the primary furnace 130 to 1500 ° C. to 2000 ° C., and effectively uses PCB soil and the like. Can be processed. In addition, since the waste treatment apparatus of the present invention uses a hydrogen-oxygen mixed gas, it has high safety and there is no risk of causing a gas explosion. Moreover, since the waste disposal apparatus of this invention can be comprised as mentioned above, an installation apparatus can be formed compactly.

  The structure of the second type combustion crater or burner 220 will be described with reference to FIGS. 10 and 11. The burner 220 includes a cylindrical or hexagonal column crater body 222, a plurality of pipe-like burner nozzles 224 extending from the upper surface of the crater body 222, and a hydrogen-oxygen mixed gas for receiving a hydrogen-oxygen mixed gas from the hydrogen-oxygen generator 110. And an introduction part 222d. The crater body 222, the burner nozzle 224, and the hydrogen-oxygen mixed gas introducing portion 222d can be manufactured of SUS303, brass, or the like. The crater body 222 can be formed such that the distance between two opposing sides is 27 mm and the thickness is 10 mm. The crater body 222 has a sealed structure and does not have an air intake hole on the outer peripheral cylindrical surface. A hollow and cylindrical plenum (charging chamber) 226 is formed inside the crater body 222. The plenum (charging chamber) 226 can be formed to have a diameter of 26 mm and a thickness of 5 mm.

  Each of the plurality of burner nozzles 224 includes a nozzle body 224b located in the center and a reinforcing ring 224c located outside the nozzle body 224b. The nozzle body 224b has an inner diameter of 2 mm and an outer diameter of 4 mm. The reinforcing ring 224c has an inner diameter of 6 mm and an outer diameter of 8 mm. The nozzle body 224b and the reinforcing ring 224c are disposed concentrically. The craters 224f at the downstream ends of the plurality of burner nozzles 224 are arranged at equal angular intervals along the circumferential direction. The upstream end of each of the plurality of burner nozzles 224 communicates with a plenum (charging chamber) 226. The inner diameter of the nozzle body 224b is preferably 0.3 to 5 mm. The inner diameter of the nozzle body 224b is more preferably 0.5 to 3.5 mm. More preferably, the inner diameter of the nozzle body 224b is 1.5 to 3 mm. By setting it as such a dimension, hydrogen-oxygen mixed gas can be burned efficiently.

  The hydrogen-oxygen mixed gas introduction part 222d is provided in the lower part (upstream side) of the crater body 222. The hydrogen-oxygen mixed gas introduction part 222 d communicates with a plenum (charging chamber) 226. The hydrogen-oxygen mixed gas introduction part 222d is connected to the outlet pipe 112g of the hydrogen-oxygen generator 110 through a conduit. A plurality of nozzle bodies 224b are preferably provided. Although a configuration in which twelve nozzle bodies 224b are provided is illustrated, the number of nozzle bodies 224b may be two, or may be three or more. The outer peripheral portions of the plurality of reinforcing rings 224c are preferably arranged so as to contact each other. With this configuration, it is possible to ensure that the mutual positions of the plurality of reinforcing rings 224c are not separated. The tip end portion 144b of the spark device 144 is disposed in the vicinity of the crater 224f. A spark control device (not shown) controls the operation of the spark device 144 to generate a spark at the tip end portion 144b of the spark device 144 and to burn the hydrogen-oxygen mixed gas ejected from the crater 224f safely and reliably. Configured to be able to.

  The structure of the third type combustion crater or burner 230 will be described with reference to FIGS. The burner 230 includes a cylindrical or hexagonal column-shaped crater body 232, a plurality of pipe-shaped burner nozzles 234 extending from the upper surface of the crater body 232, and a hydrogen-oxygen mixed gas for receiving a hydrogen-oxygen mixed gas from the hydrogen-oxygen generator 110. An introduction portion 232d and a holding plate 238 for holding the burner nozzle 234 are provided. The crater body 232, the burner nozzle 234, the hydrogen-oxygen mixed gas introducing portion 232d, and the holding plate 238 can be manufactured from SUS303, brass, or the like. The crater body 232 can be formed such that the distance between two opposing sides is 27 mm and the thickness is 10 mm. The crater body 232 has a sealed structure, and no air intake hole is provided on the outer peripheral cylindrical surface. A hollow and cylindrical plenum (charging chamber) 236 is formed inside the crater body 232. The plenum (charging chamber) 236 can be formed to have a diameter of 26 mm and a thickness of 5 mm.

  Each of the plurality of burner nozzles 234 includes a nozzle body 234b located in the center and a reinforcing ring 234c located outside the nozzle body 234b. The nozzle body 234b has an inner diameter of 2 mm and an outer diameter of 4 mm. The reinforcing ring 234c has an inner diameter of 6 mm and an outer diameter of 8 mm. The nozzle body 234b and the reinforcing ring 234c are arranged concentrically. The craters 234f at the downstream ends of the plurality of burner nozzles 234 are arranged at equal angular intervals along the circumferential direction. The upstream end of each of the plurality of burner nozzles 234 communicates with a plenum (charging chamber) 236. The inner diameter of the nozzle body 234b is preferably 0.3 to 5 mm. The inner diameter of the nozzle body 234b is more preferably 0.5 to 3.5 mm. More preferably, the inner diameter of the nozzle body 234b is 1.5 to 3 mm. By setting it as such a dimension, hydrogen-oxygen mixed gas can be burned efficiently.

  The hydrogen-oxygen mixed gas introduction part 232d is provided in the lower part (upstream side) of the crater body 232. The hydrogen-oxygen mixed gas introducing portion 232 d communicates with a plenum (charging chamber) 236. The hydrogen-oxygen mixed gas introduction part 232d is connected to the outlet pipe 112g of the hydrogen-oxygen generator 110 through a conduit. A plurality of nozzle bodies 234b are preferably provided. Although a configuration in which twelve nozzle bodies 234b are provided is illustrated, the number of nozzle bodies 234b may be two, or may be three or more. The outer peripheral portions of the plurality of reinforcing rings 224 c are preferably arranged so as to be fixed to the guide portions of the holding plate 238. With this configuration, it is possible to ensure that the mutual positions of the plurality of reinforcing rings 234c do not change. The tip portion 144b of the spark device 144 is disposed in the vicinity of the crater 234f. A spark control device (not shown) controls the operation of the spark device 144 to generate a spark at the tip end portion 144b of the spark device 144, so that the hydrogen-oxygen mixed gas ejected from the crater 234f is burned safely and reliably. Configured to be able to.

  The structure of the fourth type combustion crater or burner 240 will be described with reference to FIGS. 14 and 15. The burner 240 includes a cylindrical burner body 241, a plurality of hexagonal crater bodies 242, a pipe-like burner conduit 244 for connecting the crater body 242 and the burner body 241, and hydrogen from the hydrogen oxygen generator 110. A hydrogen-oxygen mixed gas introducing portion 242d for receiving the oxygen-mixed gas, and a holding plate 248 fixed to the burner main body 241 and holding the crater main body 242 are provided. The burner main body 241, the crater main body 242, the burner conduit 244, the hydrogen-oxygen mixed gas introducing portion 242d, and the holding plate 248 can be made of SUS303, brass, or the like. Each crater body 242 can be formed such that the distance between two opposing sides is 20 mm and the thickness is 23 mm. Each crater body 242 has a sealed structure, and no air intake hole is provided on the outer peripheral cylindrical surface. A hollow, cylindrical plenum (charging chamber) 246 is formed within each crater body 232. The plenum (charging chamber) 246 can be formed to have a diameter of 16 mm and a thickness of 3 mm.

  A plurality of gas ejection ports 258 are disposed on the upper surface 242 c of the crater body 242. The gas outlets 258 have a diameter of 1 mm and are provided on the upper surface 242c of the crater body 242 at equal angular intervals along the circumferential direction. The plurality of gas ejection ports 258 are configured by a set of a plurality of gas ejection ports arranged at equal angular intervals in the circumferential direction. Each gas outlet 258 communicates with a plenum (charging chamber) 246. The diameter of the gas outlet 258 is preferably 0.3 to 5 mm. The diameter of the gas jet outlet 258 is more preferably 0.5 to 3.5 mm. Even more preferably, the diameter of the gas outlet 258 is 1.5-3 mm. By setting it as such a dimension, hydrogen-oxygen mixed gas can be burned efficiently. A plurality of crater bodies 242 are preferably provided. Although a configuration in which eight crater bodies 242 are provided is illustrated, the number of crater bodies 242 may be two, or may be three or more.

  The hydrogen-oxygen mixed gas introduction part 242d is provided subsequent to the main body hollow part 242g provided inside the crater main body 242. The main body hollow portion 242g communicates with a plenum (charging chamber) 236 through a burner conduit 244. The hydrogen-oxygen mixed gas introduction part 242d is connected to the outlet pipe 112g of the hydrogen-oxygen generator 110 through a conduit. The outer peripheral portions of the plurality of crater bodies 242 are preferably arranged so as to be fixed to the guide portions of the holding plate 248. With this configuration, it is possible to ensure that the mutual positions of the plurality of crater bodies 242 do not change. The front end portion 144 b of the spark device 144 is disposed in the vicinity of the gas ejection port 258. A spark control device (not shown) controls the operation of the spark device 144 to generate a spark at the front end 144b of the spark device 144, so that the hydrogen-oxygen mixed gas ejected from the gas ejection port 258 can be safely and reliably produced. It is configured to be able to burn.

(2) Second embodiment:
Next, a second embodiment of the waste treatment apparatus of the present invention will be described. In the following description, the difference between the second embodiment of the waste treatment apparatus of the present invention and the first embodiment of the waste treatment apparatus of the present invention will be mainly described. Accordingly, the description of the first embodiment of the waste treatment apparatus of the present invention described above applies mutatis mutandis to the portions not described below.

  Referring to FIG. 16, in the second embodiment of the waste treatment apparatus of the present invention, the waste treatment apparatus 300 is configured to be used for treating contaminated soil such as PCB soil. The waste treatment apparatus 100 receives the waste, that is, the treated product 122, and the hydrogen / oxygen generation apparatus 110 for supplying the hydrogen / oxygen gas generated by decomposing water into hydrogen gas and oxygen gas and supplying the generated hydrogen / oxygen mixed gas. The hydrogen-oxygen mixed gas received from the apparatus 110 is combusted to treat the waste, that is, the treated product 122. The treated product processing apparatus 330 is disposed inside the treated product processing apparatus 330, and the hydrogen-oxygen generating apparatus 110. The hydrogen-oxygen mixed gas is received from the burner 142 that constitutes a combustion crater for burning the hydrogen-oxygen mixed gas, and the burner 142 is disposed inside the treatment object processing device 330 and is ejected from the gas outlet of the burner 142. And a spark device 144 constituting an ignition device for igniting the hydrogen-oxygen mixed gas.

  The processed material processing apparatus 330 includes a charging device 120 that constitutes a processed material input unit for receiving the waste, that is, the processed material 122, and a process for discharging the processed waste processed by burning the hydrogen-oxygen mixed gas. A discharge conveyor 146 that constitutes a spent waste discharge unit, and a discharge pipe 332 that constitutes an exhaust gas discharge unit for discharging combustion exhaust gas.

  The waste treatment apparatus 300 further includes a heater 360 that constitutes a gas heating apparatus that receives the combustion exhaust gas from the exhaust pipe 332 and heats the combustion exhaust gas. A burner 162 constituting a combustion crater is disposed inside the heater 360. The burner 162 is configured to receive a hydrogen-oxygen mixed gas from the hydrogen-oxygen generator 110 and burn the hydrogen-oxygen mixed gas. A spark device 164 is disposed inside the heater 360 and constitutes an ignition device for igniting a hydrogen-oxygen mixed gas injected from a gas outlet of the burner 162. The exhaust pipe 168 constitutes an exhaust gas exhaust unit for exhausting combustion exhaust gas from the heater 360. The design temperature of the heater 360 can be designed to be in the range of 1800 ° C to 2000 ° C, for example.

  The waste treatment apparatus 300 further includes an exhaust gas treatment apparatus 170 that constitutes a heated exhaust gas cooling apparatus that receives the heated exhaust gas from the discharge pipe 168 of the heater 360 and cools the heated exhaust gas. The treatment exhaust pipe 178 constitutes a treated exhaust gas discharge unit for discharging the treated exhaust gas from the exhaust gas treatment device 170. An exhaust cylinder 180 is provided for receiving the treated exhaust gas from the treatment exhaust pipe 178 and discharging the exhaust gas 190 to the atmosphere.

(3) Waste treatment method of the present invention:
Next, the waste disposal method of the present invention will be described.
(3.1) Waste treatment method:
Referring to FIG. 1, the waste treatment method of the present invention includes a mixed gas combustion apparatus (primary furnace 130) for receiving waste such as asbestos and processing the waste. Next, waste is introduced into the mixed gas combustion apparatus (primary furnace 130) using the pusher 124. Next, water is decomposed into hydrogen gas and oxygen gas by the hydrogen-oxygen generator 110 to generate a hydrogen-oxygen mixed gas. Next, the hydrogen-oxygen mixed gas is received in the mixed gas combustion apparatus (primary furnace 130), the hydrogen-oxygen mixed gas is injected from the combustion crater, and ignited by the ignition device, and the hydrogen-oxygen mixed gas is 1500 °. Burn in the range of C-1700 ° C. The burned treated waste can be dropped directly into the water for rapid cooling and crushing. Next, the treated waste that has been subjected to the combustion treatment is discharged from the waste outlet. The discharged conveyor 146 can be used to transport the treated waste. By the waste treatment method of the present invention, for example, heat of 1500 ° C. or more can be applied to asbestos to dissolve mineral fibers in units of several microns. The crystal collapse temperature of asbestos is 400 ° C. to 1000 ° C., but it can be solidified and made completely harmless by applying heat of 1500 ° C. or more to asbestos. This method has an advantage that the exhaust gas from the heating source does not contain CO ₂ .

  In the waste treatment method of the present invention, the combustion exhaust gas is received from the exhaust gas discharge part of the mixed gas combustion apparatus (primary furnace 130), and the combustion exhaust gas is heated in the range of 1700 ° C to 1900 ° C in the secondary furnace 160. be able to. In the secondary furnace 160, the exhaust gas from the primary furnace 130 can be thermally decomposed at a high temperature. The combustion exhaust gas is heated by receiving the hydrogen-oxygen mixed gas generated by the hydrogen-oxygen generator 110 and burning the hydrogen-oxygen mixed gas. Further, in the waste treatment method of the present invention, the exhaust gas treatment device 170 can receive the heated exhaust gas, neutralize the heated exhaust gas, cool it, and collect dust. The gas that has passed through the exhaust gas treatment device 170 becomes clean and is released from the exhaust pipe 180 into the atmosphere. That is, in this method, the gas discharged from the secondary furnace 160 is cooled to about 100 ° C. with the circulating cooling water containing neutralized water by the jet scrubber 174, separated into gas and liquid by the separator 172, and discharged by the induction fan. It is sent to the cylinder 180.

(3.2) Contaminated soil treatment method:
The waste treatment method of the present invention can also be applied to the treatment of waste such as contaminated soil. Referring to FIG. 16, the waste processing method of the present invention is provided with a mixed gas combustion apparatus (processed material processing apparatus 330) for receiving waste such as contaminated soil and processing the waste. Next, the contaminated soil is introduced into the mixed gas combustion apparatus (processed material processing apparatus 330). Next, water is decomposed into hydrogen gas and oxygen gas by the hydrogen-oxygen generator 110 to generate a hydrogen-oxygen mixed gas. Next, the hydrogen-oxygen mixed gas is received inside the mixed gas combustion device (processed material processing device 330), the hydrogen-oxygen mixed gas is injected from the combustion crater, and ignited by the ignition device. Chemical substances (dioxin, PCB, etc.) contained in the contaminated soil are gasified at 600 ° C, the gas is sent to the secondary furnace, and the gas is 1800 ° C to 2000 ° in the secondary furnace. Process with C. In the case of contaminated soil, if a high temperature is directly applied to the contaminated soil, the contaminated soil becomes stone and cannot be reused, so only chemical substances (dioxin, PCB, etc.) contained in the contaminated soil It is necessary to first gasify the gas, send the gas to the secondary furnace, and detoxify the gas in the secondary furnace. According to this method, since the harmful substances contained in the contaminated soil can be removed from the contaminated soil in the primary furnace, there is an advantage that the contaminated soil becomes a reusable soil.

  In the waste treatment method of the present invention, the combustion exhaust gas is received from the exhaust gas discharge part of the mixed gas combustion device (processed material treatment device 330), and the heater 360 heats the combustion exhaust gas to a range of 1800 ° C to 2000 ° C. be able to. The combustion exhaust gas is heated by receiving the hydrogen-oxygen mixed gas generated by the hydrogen-oxygen generator 110 and burning the hydrogen-oxygen mixed gas. In the waste treatment method of the present invention, the exhaust gas treatment apparatus 170 can receive the heated exhaust gas and cool the heated exhaust gas.

  The waste treatment apparatus of the present invention is suitable for environmental protection, and can reliably decompose hazardous substances such as contaminated soil containing harmful substances (such as PCB) and asbestos at high temperatures. Further, the waste treatment apparatus of the present invention can be easily moved because the structure of the apparatus is compact. Furthermore, since the waste treatment apparatus and the waste treatment method of the present invention use a hydrogen oxygen generator, the safety is high and there is no danger of causing a gas explosion.

1 is a block diagram showing a schematic configuration of an apparatus in a first embodiment of a waste treatment apparatus of the present invention. FIG. 3 is a block diagram showing a specific configuration of the apparatus in the first embodiment of the waste treatment apparatus of the present invention. 1 is a cross-sectional view showing a structure of a hydrogen oxygen generator in a first embodiment of a waste treatment apparatus of the present invention. In 1st Embodiment of the waste disposal apparatus of this invention, it is a longitudinal cross-sectional view which shows the structure of a primary furnace. In 1st Embodiment of the waste disposal apparatus of this invention, it is a longitudinal cross-sectional view which shows the structure of a secondary furnace. In 1st Embodiment of the waste-processing apparatus of this invention, it is a longitudinal cross-sectional view which shows the structure of a jet scriber. In 1st Embodiment of the waste disposal apparatus of this invention, it is a longitudinal cross-sectional view which shows the structure of a separator. In 1st Embodiment of the waste disposal apparatus of this invention, it is a front view which shows the structure of a 1st type burner. In 1st Embodiment of the waste-treatment apparatus of this invention, it is a fragmentary sectional view which shows the structure of a 1st type burner. In 1st Embodiment of the waste disposal apparatus of this invention, it is a front view which shows the structure of a 2nd type burner. In 1st Embodiment of the waste disposal apparatus of this invention, it is a fragmentary sectional view which shows the structure of a 2nd type burner. In 1st Embodiment of the waste disposal apparatus of this invention, it is a front view which shows the structure of a 3rd type burner. In 1st Embodiment of the waste disposal apparatus of this invention, it is a fragmentary sectional view which shows the structure of a 3rd type burner. In 1st Embodiment of the waste disposal apparatus of this invention, it is a front view which shows the structure of a 4th type burner. In 1st Embodiment of the waste disposal apparatus of this invention, it is a fragmentary sectional view which shows the structure of a 4th type burner. FIG. 5 is a block diagram showing a specific configuration of the apparatus in the second embodiment of the waste treatment apparatus of the present invention. In the conventional asbestos melting furnace, it is an upper top view which shows the combustion crater arrange | positioned in a melting furnace. It is a side view which shows the combustion crater arrange | positioned in a melting furnace in the conventional asbestos melting furnace.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Waste processing apparatus 110 Hydrogen oxygen generator 120 Input apparatus 122 Processed material 130 Primary furnace 142 Burner 144 Spark apparatus 146 Discharge conveyor 160 Secondary furnace 162 Burner 164 Spark apparatus 170 Exhaust gas processing apparatus 180 Exhaust pipe

Claims (12)

A waste treatment apparatus for treating waste,
A hydrogen-oxygen generator for decomposing water into hydrogen gas and oxygen gas and supplying the generated hydrogen-oxygen mixed gas;
A mixed gas combustion device for receiving waste and treating the waste by burning a hydrogen-oxygen mixed gas;
A combustion crater disposed inside the mixed gas combustion device and receiving the hydrogen oxygen mixed gas from the hydrogen oxygen generator and burning the hydrogen oxygen mixed gas;
An ignition device that is disposed inside the mixed gas combustion device and ignites a hydrogen-oxygen mixed gas injected from the combustion crater;
The mixed gas combustion apparatus includes a processed material input unit for receiving waste, a processed waste discharge unit for discharging processed waste processed by burning a hydrogen-oxygen mixed gas, and a combustion exhaust gas. An exhaust gas discharge part for discharging,
The combustion crater includes a closed crater body having a hollow plenum,
The crater body circulates in the plenum for injecting a hydrogen-oxygen mixed gas introduction unit for receiving a hydrogen-oxygen mixed gas from the hydrogen-oxygen generator and injecting the hydrogen-oxygen mixed gas into the mixed gas combustion device. A plurality of gas outlets arranged in the
A waste treatment apparatus characterized by that.   The apparatus further comprises a gas heating device for receiving combustion exhaust gas from the exhaust gas discharge unit and heating the combustion exhaust gas, disposed inside the gas heating device, and receiving a hydrogen-oxygen mixed gas from the hydrogen-oxygen generator A combustion crater for a gas heating device for burning the hydrogen-oxygen mixed gas, and a hydrogen-oxygen mixed gas disposed inside the gas heating device and injected from the combustion crater for the gas heating device The waste gas treatment apparatus according to claim 1, further comprising:   The waste treatment apparatus according to claim 2, further comprising a heated exhaust gas cooling device for receiving the heated exhaust gas from the exhaust gas discharge portion of the gas heating device and cooling the heated exhaust gas.   The waste gas treatment apparatus according to claim 1, wherein the plurality of gas ejection ports are arranged at equal angular intervals in the circumferential direction.   2. The waste treatment apparatus according to claim 1, wherein the plurality of gas ejection ports are configured by a set of a plurality of gas ejection ports arranged at equal angular intervals in a circumferential direction.   A combustion crater used in the waste treatment apparatus according to claim 1, wherein a plurality of gas jets are received in the combustion crater for receiving the hydrogen-oxygen mixed gas from the hydrogen-oxygen generator and burning the hydrogen-oxygen mixed gas. A combustion crater characterized in that outlets are arranged at equal angular intervals in the circumferential direction.   A combustion crater used in the waste treatment apparatus according to claim 1, wherein a plurality of gas jets are received in the combustion crater for receiving the hydrogen-oxygen mixed gas from the hydrogen-oxygen generator and burning the hydrogen-oxygen mixed gas. A combustion crater characterized in that the outlets are arranged at equal angular intervals in the circumferential direction, and the inner diameter of each gas outlet is 0.3 to 5 mm. A method for treating waste,
Providing a mixed gas combustion device for receiving waste and processing the waste;
Introducing waste into the mixed gas combustion device;
Decomposing water into hydrogen gas and oxygen gas to generate a hydrogen-oxygen mixed gas;
Receiving a hydrogen-oxygen mixed gas in the mixed gas combustion device, injecting the hydrogen-oxygen mixed gas from a combustion crater, and burning it;
Discharging the burned treated waste,
The combustion crater includes a closed crater body having a hollow plenum,
The crater body has a hydrogen-oxygen mixed gas introduction part for receiving a hydrogen-oxygen mixed gas, and a plurality of gas jets arranged to flow to the plenum for injecting the hydrogen-oxygen mixed gas.
A waste treatment method characterized by the above.   The method further includes the step of receiving the combustion exhaust gas from the exhaust gas discharge unit of the mixed gas combustion apparatus and heating the combustion exhaust gas, and the heating of the combustion exhaust gas receives the hydrogen oxygen mixed gas and combusts the hydrogen oxygen mixed gas. The waste treatment method according to claim 8, wherein the waste treatment method is performed by:   The waste treatment method according to claim 9, further comprising the step of receiving the heated exhaust gas and cooling the heated exhaust gas.   The waste treatment method according to claim 8, wherein the plurality of gas ejection ports are arranged at equal angular intervals in the circumferential direction.   The waste gas treatment method according to claim 8, wherein the plurality of gas jet nozzles include a plurality of sets of gas jet nozzles arranged at equal angular intervals in the circumferential direction.

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