JP2007298251A - Incineration system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an incineration system capable of preventing occurrence of a poisonous gas with relatively simple structure, and allowing metal and the like to be slagged, in relation to an incineration system for incinerating waste with metals and polymer-based waste plastic materials mixed therein. <P>SOLUTION: This incineration system is characterized by including: a primary treating part for heating an incineration object; a secondary treating part for introducing gas generated from the incineration object in the primary treating part to burn the introduced gas; a cooling part for introducing the gas burnt in the secondary treating part to rapidly cool the introduced gas; and a control device for controlling the heating temperature of the primary treating part wherein the incineration object is heated at low temperature in the primary treating part to be gasified, introduced into the secondary treating part, and thereafter residues of the incineration object is heated at high temperature to melt them. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an incineration system, and more particularly to an incineration system that incinerates waste mixed with metals and polymer plastic waste.

  2. Description of the Related Art In recent years, a lot of wastes in which metal such as injection needles and high polymer waste plastics such as paper diapers and infusions are mixed are disposed of in the medical field. The handling of these wastes is very troublesome, and it has become expensive when the industrial waste disposal contractor is requested to treat them. For this reason, it is desired to incinerate with an incinerator.

  However, a general incinerator is configured to burn waste at a temperature of about 800 to 1,200 ° C. at once. When high-molecular waste plastics are burned at a temperature of about 800 to 1,200 ° C., harmful substances such as dioxins, carbon dioxide, nitrogen compounds and sulfur oxides are generated. In addition, metals such as injection needles remain as they are, making handling difficult.

In addition, as an incinerator for incinerating waste such as polymer waste plastics, an incinerator for incineration at an ultrahigh temperature of 2,000 to 2,500 ° C. has been proposed (Patent Document 1). 2). Generation of harmful substances such as dioxins is reduced by incineration at an ultrahigh temperature of 2,000 to 2,500 ° C.
Japanese Patent Laid-Open No. 11-82980 JP 2004-167305 A

  As described above, in the conventional incineration system, it has been impossible to treat waste mixed with polymer-based waste plastics and metals.

  In addition, in an incinerator that performs incineration at an ultra-high temperature, the furnace and the heating device are very expensive and generally not applicable.

  Therefore, an incineration system that can incinerate waste mixed with metals and polymer waste plastics at a relatively low cost has been desired.

  The present invention has been made in view of the above points, and an object thereof is to provide an incineration system that can prevent the generation of toxic gas at a low cost with a relatively simple configuration and that can be made into slag such as metal. To do.

  The present invention includes a primary processing unit for heating an incinerated product, a gas generated from the incinerated product in the primary processing unit, a secondary processing unit for burning the introduced gas, and a gas burned in the secondary processing unit. And a control unit that controls the cooling unit that quenches the introduced gas, a primary processing unit, a secondary processing unit, and a cooling unit. Heat at a low temperature, gasify the polymer plastics in the incinerated product, introduce it into the secondary processing unit, incinerate the gas introduced from the primary processing unit in the secondary processing unit, After molecular plastics are gasified in the primary processing unit and incinerated in the secondary processing unit, the incinerated residue is heated at a high temperature in the primary processing unit to melt the metals in the incinerated product. It is characterized by controlling to.

  The primary processing unit includes a first heating device that heats the incinerated product from the side surface by a heating coil, and a second heating device that heats the incinerated product from the bottom surface by the heating coil.

  The secondary processing unit is disposed in the gas introduction portion from the primary processing unit, and is heated by the third heating unit and the third heating unit that heats the gas introduced from the primary processing chamber by the heating coil. And an auxiliary combustion device for combusting the introduced gas.

  The second heating device has a funnel shape, is disposed on the bottom surface of the primary processing unit, and is provided with a funnel portion that collects the melt at the discharge port, a heating member that is placed on the funnel portion, and an alternating current. And a heating coil for generating heat by inductively heating the heating member.

  The third heating device includes a conductor member having a plurality of paths for introducing the gas generated in the primary processing unit into the secondary processing unit, and a heating coil for inductively heating the conductor member to generate heat. Features.

  According to the present invention, a primary processing unit for heating an incinerated product, a gas generated from the incinerated product in the primary processing unit, a secondary processing unit for burning the introduced gas, and a secondary processing unit are burned. And a cooling unit that rapidly cools the introduced gas, the incinerated product is heated at a low temperature in the primary processing unit, gasified, introduced into the secondary processing unit, and then the incinerated residue is removed. By controlling the heating temperature of the primary processing section so that it is heated and melted at a high temperature, polymer waste plastics can be incinerated without generating toxic substances, and the metal can be melted to slag. Can be

[Combustion system]
FIG. 1 shows a system configuration diagram of an incineration system according to an embodiment of the present invention.

  The incineration system 100 of the present embodiment is a system for incinerating wastes such as medical waste and polymer waste plastics, for example, an incineration unit 111, a cooling unit 112, a filter unit 113, and a control device 114. It is composed of

  The incinerator 111 heats the waste at a low temperature, generates a gas from the polymer waste plastic or the like in the waste, burns it, heats it at a high temperature, melts the metal, and slags. Exhaust gas from the combustion unit 111 is supplied to the cooling unit 112 through the pipe 121. Note that generation of graphite or the like can be prevented by heating the waste at a low temperature by the incinerator 111. In addition, the generation of toxic gas can be reduced by burning the gas generated by heating at a low temperature.

  The cooling unit 112 rapidly cools the exhaust gas of the gas burned in the incineration unit 111. The exhaust gas cooled by the cooling unit 112 is supplied to the filter unit 113 through the pipe 122. In addition, the recombination of toxic substances such as dioxins can be prevented by quenching the exhaust gas from the incineration unit 111 by the cooling unit 112.

  The filter unit 113 filters the exhaust gas cooled by the cooling unit 112 and discharges it to the outside. The control device 114 performs sequence control and pressure control of the heating process in the incineration unit 111 and also controls the water level of the cooling water in the cooling unit 112.

[Incineration part 111]
The incineration unit 111 includes a primary processing unit 131 and a secondary processing unit 132.

[Primary processing unit 131]
First, the primary processing unit 131 will be described.

  FIG. 2 is a cross-sectional configuration diagram of the primary processing unit 131.

  The primary processing unit 131 heats the waste at a low temperature to dry it, generates gas from the polymer waste plastics in the waste, decomposes the polymer waste plastics, and then heats the waste at a high temperature. This is a part for performing a process of dissolving the metals, and includes a primary processing chamber 141, a first heating device 142, a second heating device 143, a blower 144, a temperature detector 145, a pressure detector 146, and a nitrogen gas introduction unit. 147, a slag receiving portion 148, and a hatch 149.

  The primary processing chamber 141 has a configuration in which a refractory material 151 is formed in a bottomed cylindrical shape, and is placed on a pedestal 152. The first heating device 142 is provided on the inner wall of the primary processing chamber 141. The second heating device 143 is provided on the bottom surface side of the primary processing chamber 141.

[First heating device 142]
Here, the first heating device 142 will be described.

  In the first heating device 142, a substantially cylindrical stainless steel plate 161 is disposed along the inner wall of the primary processing chamber 141, and a fireproof glass wool 162 is interposed between the inner wall of the primary processing chamber 141 and the stainless steel plate 161. Thus, the heating coil 163 is arranged. The heating coil 163 is connected to the control device 114, and AC power is supplied from the control device 114. By supplying AC power to the heating coil 161, an induced current flows through the stainless steel plate 161, and the stainless steel plate 161 is heated. When the stainless steel plate 161 is heated, the waste put into the primary processing chamber 141 is heated from the side wall.

  The waste is heated by the first heating device 142 at a low temperature and dried, and gas is generated from the polymer waste plastics in the waste to decompose the polymer waste plastics.

[Second heating device 143]
Next, the second heating device 143 will be described.

  FIG. 3 shows a perspective view of the second heating device 143.

  The second heating device 143 includes a funnel 171, a refractory material 172, a heating coil 173, and a heating element 174. The funnel portion 171 is configured by molding a refractory material into a funnel shape. A heating coil 173 is disposed on the lower surface of the funnel portion 171 via a refractory material 172. The heating coil 173 is spirally wound around the funnel 171 and is connected to the control device 114. The heating coil 173 is supplied with AC power from the control device 114. At this time, the heating coil 173 is wound at a lower portion of the funnel portion 171 so as to be denser than the upper portion. Thereby, the heating element 174 can be efficiently heated.

  A heating element 174 is provided on the upper surface side of the funnel portion 171. The heating element 174 is made of carbon, for example. When AC power is supplied from the control device 114 to the heating coil 173, an induced current flows through the heating element 174, and the heating element 174 is heated. When the heating element 174 is heated, the upper portion of the funnel portion 171 is heated.

  The metal can be melted by heating the heating element 174 to a high temperature. The metal melted by the heating element 174 is collected in the hole 181 at the bottom by the funnel 171. The hole 181 is formed slightly above the bottom surface. Thereby, slag can be formed.

  A slag receiving portion 148 is provided below the hole portion 181 of the funnel portion 171. The slag receiving part 148 receives and collects the metal slag that flows down from the hole 181 of the funnel part 171. The blower 144 is controlled by the control device 114 to introduce outside air into the primary processing chamber 141.

  The temperature detector 145 includes, for example, a thermocouple, detects the temperature inside the primary processing chamber 131, and supplies a detection signal corresponding to the temperature to the control device 114. The pressure detector 146 detects the pressure inside the primary processing chamber 141 and supplies it to the control device 114.

  The nitrogen gas introduction unit 147 introduces nitrogen gas into the primary processing chamber 141 through the slag receiving unit 148. By introducing nitrogen gas at the time of incineration, combustion of waste in the primary treatment chamber 141 can be prevented, and generation of graphite can be prevented.

[Secondary processing unit 132]
The secondary processing unit 132 includes a secondary processing chamber 191, a third heating device 192, an auxiliary burner 193, blowers 194 and 195, and a temperature detector 196.

  The secondary processing chamber 191 has a structure in which the refractory material 201 is formed in a substantially cylindrical shape, and communicates with the primary processing chamber 141 through the third heating device 192.

  FIG. 4 shows a configuration diagram of the third heating device 192.

  The third heating device 192 includes a heat generating part 211, a refractory part 212, and a heating coil 213. The heat generating portion 211 has a structure in which a large number of pipes 211 having an outer diameter of 21.7 mm, an inner diameter of 16.1 mm, and a length of 250 mm are bundled. The heat generating part 211 is held on a cylinder having a diameter of about 200 mm by the fireproof part 212.

  The refractory portion 212 has a thickness of about 10 mm, and a heating coil 213 is wound around the outer surface. The heating coil 213 is connected to the control device 114, and AC power is supplied from the control device 114.

  When AC power is supplied from the control device 114 to the heating coil 213, an induced current flows through the heat generating part 211, and the heat generating part 211 generates heat.

  The third heating device 192 is disposed between the primary processing chamber 141 and the secondary processing chamber 191, and the secondary processing chamber 191 communicates with the primary processing chamber 141 and the secondary processing chamber 191 through the heat generating part 211. The gas generated in the primary processing chamber 141 is heated and supplied to the secondary processing chamber 191.

  The auxiliary burner 193 is a device for burning the gas introduced from the primary processing chamber 141 into the secondary processing chamber 191 via the third heating device 192. Combustion of the auxiliary burner 193 is controlled by the control device 114. The control device 114 is ignited by the control device 114 and burns the gas from the third heating device 192 when the temperature inside the secondary processing chamber 191 is not sufficiently increased by the temperature detector 196.

  The blower 194 supplies oxygen necessary for combustion, and is controlled by the control device 114. The drive of the blower 195 is controlled by the control device 114 and blows air toward the pipe 121.

  An air flow is generated in the direction of the pipe 121 by the blower 195, and the gas does not flow backward to the primary processing chamber 141 side. The temperature detector 196 includes a thermocouple and the like, and supplies a detection signal corresponding to the temperature in the secondary processing chamber 191 to the control device 114.

[Cooling section 112]
Next, the cooling unit 112 will be described.

  The cooling unit 112 is connected to the secondary processing chamber 191 through a pipe 121. A negative pressure destruction valve 200 is attached to the pipe 121 to prevent the gas from flowing back from the cooling unit 112 side to the secondary processing chamber 191 when the pipe 121 becomes negative pressure. Yes.

  The cooling unit 112 includes a cooling tank 221, a shower nozzle 222, a water storage unit 223, a pump 224, a water supply valve 225, a water level detector 226, a drying chamber 227, and a drain valve 228. The cooling tank 221 is constituted by a hollow housing made of, for example, metal or resin, the water storage part 223 is provided at the lower part, and the shower nozzle 222 is provided at the upper part. The pipe 121 is connected between the water storage unit 223 and the shower nozzle 222.

  Cooling water is supplied to the shower nozzle 222 from the water storage unit 223 via the pump 224. The temperature of the exhaust gas supplied from the pipe 121 is rapidly lowered by the cooling water released from the shower nozzle 222. This prevents recombination of dioxins and the like. The cooling water discharged from the shower nozzle 222 passes through the cooling tank 221 and is stored in the water storage unit 223. At this time, a part of the exhaust gas supplied from the pipe 121 is absorbed by the cooling water discharged from the shower nozzle 222 and dissolves in the water of the water storage unit 223.

  Note that the water in the water storage unit 223 can be discharged to the outside by a drain valve 228. The drain valve 228 is adjusted so that about 10 liters per hour are drained to the water treatment facility during the incineration process. Thereby, the water of the water storage part 223 can be kept at a predetermined water quality. By treating the water discharged from the drain valve 228 in the water treatment facility, it is possible to treat the harmful substance as exhaust gas without releasing it into the outside air.

  Note that the gas cooled by the shower nozzle 222 is supplied to a drying chamber 227 disposed above the shower nozzle 222. The drying chamber 227 has a structure in which a large number of metal fins and the like are stacked, and gas is dried by adsorbing moisture onto the fins.

  The drying chamber 227 is connected to the pipe 122. The pipe 122 is supplied to the filter unit 113. The filter unit 113 includes an exhaust pump 231 and a filter 232.

  The water supply valve 225 is connected to a water supply pipe or the like. When the water level falls below a predetermined water level, the valve is mechanically opened by a float, and water is poured into the water storage unit 223. When the water level reaches the predetermined water level, the valve is mechanically opened by the float. Is closed and water injection into the water storage unit 223 is stopped. For this reason, when 10 liters of water are drained from the drain valve 228 per hour by the water supply valve 225, 10 liters of water is replenished to the water storage part 223, and the water level of the water storage part 223 is kept constant.

  The exhaust pump 231 draws gas from the pipe 122 and supplies it to the filter 232. The filter 232 adsorbs harmful components contained in the exhaust gas and discharges them to the outside.

[Control device 114]
The control device 114 includes a sequencer and a computer system. Based on detection signals from the timer, the temperature detectors 145 and 196, and the pressure detector 146, the control device 114 includes a first heating device 142, a second heating device 143, and a third heating device. The heating device 192, auxiliary burner 193, blowers 144, 194, 195, nitrogen gas introduction part 147, etc. are controlled to incinerate waste mixed with metals and polymer waste plastic material without releasing harmful substances. .

[Operation]
FIG. 5 shows a processing flowchart of the control device 114 according to an embodiment of the present invention.

In the control device 114, waste is put into the primary processing chamber 141 from the hatch 149, the hatch 149 is locked in step S1-1, and the pump 224 of the cooling unit 112 is activated by the operation panel in step S1-2. The cooling water is controlled to be discharged from the shower nozzle 222, and
When an incineration start operation is performed in step S1-3, a timer is started in step S1-4, the third heating device 192 is turned on in step S1-5, and auxiliary burner control is started in step S1-6. In step S1-7, the first heating device 142 and the second heating device 143 are set to low temperature control. Further, the control unit 114 starts the control of the blower 195 of the secondary processing unit 132 in step S1-8, setting the vacuum pump 231 of the filter unit 113 to -8mmH ₂ O control in step S1-9.

  In addition, if the 3rd heating apparatus 192 is turned on by step S1-5, it will operate | move by the output of 8 kW until completion of 1 batch. Further, in the auxiliary burner control in step S1-6, the blower 194 is activated, the auxiliary burner 193 is ignited, and the combustion of the auxiliary burner 193 is controlled so that the temperature detected by the temperature detector 196 is 800 to 900 ° C. To do. Further, in the low temperature control in step S1-7, the detection value of the temperature detector 145 of the first heating device 142 and the second heating device 143 is 150 ° C., that is, the temperature of the primary processing chamber 141 is 150 ° C. Control to be. For example, the temperature control is performed by increasing or decreasing the power of the AC power supply supplied to the first heating device 142 and the second heating device 143. By setting the room temperature of the primary processing chamber 141 to 150 ° C., the waste is dried and the polymer waste plastics are gasified without being burned. As a result, polymer waste plastics can be turned into gas without generating harmful substances such as dioxins, carbon dioxide, nitrogen compounds, and sulfur oxides.

Further, in control of the blower 195 in step S1-8, the detected pressure of the pressure detector 146 is turned on at -2mmH ₂ O or less, and controls to turn off at -10mmH ₂ O or more.

Further, in the −8 mmH ₂ O control in step S1-9, the exhaust pump 231 of the filter unit 113 is controlled so that the detected pressure of the pressure detector 146 becomes −8 mmH ₂ O.

  Next, when the time measured by the timer reaches 120 minutes in step S1-10, the controller 114 determines that the polymer waste plastics have been decomposed into gas, and in step S1-11, the first heating device is determined. 142 and the second heating device 143 are switched to high-temperature processing.

  In the high temperature control in step S1-11, the first heating device 142 is stopped, and the second heating device 143 is controlled so that the heating element 174 is about 1,850 ° C. At this time, the control device 114 controls the second heating device 143 so that the heating element 174 becomes about 1,850 ° C., for example, by controlling the power supplied to the second heating device 143. .

  Next, when the time measured by the timer reaches 210 minutes in step S1-12, the control device 114 turns on the blower 144 in step S1-13. By turning on the blower 144, oxygen is supplied to the primary processing chamber 141, and the carbonized waste remaining in the primary processing chamber 141 is burned and processed.

Next, when the time measured by the timer reaches 300 minutes in step S1-14, the control device 114 determines that the metals have been slagged, and in step S1-15, the first heating device 142 and the second heating device 142 are determined. the heating device 143 is turned off, to change the exhaust pump 231 of the filter portion 113 from -8mmH ₂ O controlled -2mmH ₂ O control at step S1-16. Moreover, the control apparatus 114 stops the air blower 195 of the secondary process part 132 by step S1-17. Note that in the −2 mmH ₂ O control in step S1-15, the exhaust pump 231 of the filter unit 113 is controlled so that the detected pressure of the pressure detector 146 becomes −2 mmH ₂ O.

  Next, when the time measured by the timer reaches 360 minutes in step S1-18, the control device 114 determines that the incineration is complete and has been sufficiently cooled, and turns off all the devices in step S1-19.

  FIG. 6 shows a timing chart of an embodiment of the present invention.

  The controller 114 controls the primary processing chamber 141 to 150 ° C. by the first heating device 142 and the second heating device 143 for 120 minutes from the start of the incineration process. As a result, the polymer plastics are gasified in the primary processing chamber 141. For example, polyethylene melts at 100 to 130 ° C. and is gasified. When polymer plastics are treated at 400 to 500 ° C., thermal decomposition starts abruptly, generating a large amount of hydrocarbons and generating black smoke.

  At this time, the pressure in the primary processing chamber 141 is controlled by the exhaust pump 231, and the gas generated in the primary processing chamber 141 is introduced into the secondary processing chamber 191.

  In the secondary processing chamber 191, the third heating device 192 and the blower 194 are turned on, and the temperature is controlled to 800 to 900 ° C. by the auxiliary burner 193. As a result, the gas generated in the primary processing chamber 141 is combusted. At this time, the gas in the primary processing chamber 141 passes through the third heating device 192 and is introduced into the secondary processing chamber 191. By passing through the third heating device 192, the gas is heated and easily combusted. In the secondary processing chamber 191, the gas heated by the third heating device 192 is burned by the auxiliary burner 193, and the temperature of the room temperature rises. When the temperature of the secondary processing chamber 191 rises and becomes 900 ° C. or higher, the auxiliary burner 193 stops. This makes it possible to save energy.

The incineration process is performed for 120 minutes. In about 120 minutes, polymer plastics out of the waste in the primary processing chamber 141 are gasified and decomposed. At this time, the blower 195 is driven to control the pressure in the secondary processing chamber 191 to the optimum value, −8 to −10 mmH ₂ O. For this reason, the gas is completely burned in the secondary processing chamber 191 and can be processed.

  After 120 minutes, the first heating device 142 is stopped, and the heating element 174 of the second heating device 143 is controlled to about 1,850 ° C. As a result, the metals are dissolved and slag is formed. By similarly performing this incineration process for about 120 minutes, it can accumulate | store in the slag receiving part 148 which turned metal into slag.

  Further, the carbide remaining in the primary processing chamber 141 can be processed by turning on the blower 144 in 240 minutes from the start of the incineration process and introducing outside air into the primary processing chamber 141. This can reduce the generation of incineration ash.

  According to the present embodiment, polymer plastics are gasified at a low temperature in the primary processing chamber 141, burned in the secondary processing chamber 191, and the gas burned in the secondary processing chamber 191 is rapidly changed in the cooling unit 112. Cooling can prevent recombination of harmful substances such as dioxins. In addition, after gasifying and treating the polymer plastics, the metal waste can be treated at a high temperature in the primary treatment chamber 191 to treat metal waste. Therefore, it is possible to easily incinerate waste mixed with metals and polymer waste plastic material. Moreover, incineration ash can be decreased by incinerating carbide. For example, since an injection needle or the like can be discarded as slag, infectious waste can be effectively treated.

  Further, in the present embodiment, the auxiliary burner 193 is the only installed burner, and this auxiliary burner 193 is also used primarily when the amount of gas generated is relatively small, gas burns, and the secondary processing chamber. When the temperature of 191 reaches 900 ° C. or higher, the operation is stopped. For this reason, energy saving is attained.

  Moreover, by not using a burner, the influence of the combustion air and the heating power of the burner can be reduced, and the treated product is not agitated and a stable incineration process can be performed. Further, nitrogen can be introduced by the nitrogen introduction part 147 and incineration can be performed in a low oxygen state. For this reason, generation | occurrence | production of a harmful substance can be reduced. Generation of harmful substances can be reduced.

  In addition, this invention is not limited to the said Example, It cannot be overemphasized that a various modified example can be considered in the range which does not deviate from the summary of this invention.

It is a system configuration figure of one example of the present invention. Cross-sectional configuration diagram of the primary processing unit 131 It is a perspective view of the 2nd heating device 133. FIG. It is a block diagram of a 3rd heating apparatus. It is a process flowchart of the control apparatus 114 of one Example of this invention. It is a timing chart of one Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Incineration system 111 Incineration part, 112 Cooling part, 113 Filter part, 114 Control apparatus 121, 122 Piping 131 Primary processing part, 132 Secondary processing part 141 Primary processing chamber, 142 1st heating apparatus, 143 2nd heating apparatus 144 Blower, 145 Temperature detector, 146 Pressure detector, 147 Nitrogen gas introduction part 148 Slag receiving part, 149 Hatch 151 Refractory material 161 Stainless steel plate, 162 Refractory glass wool, 163 Heating coil 171 Funnel part, 172 Refractory material, 173 Heating coil, 174 Heating element 181 Hole 191 Secondary processing chamber, 192 Third heating device, 193 Auxiliary burner 194, 195 Blower, 196 Temperature detector 200 Negative pressure breaking valve 201 Refractory material 211 Heating part, 212 Refractory part, 213 Heating coil 221 Cooling tank, 222 Sha Nozuru 223 reservoir, 224 pump 225 water valves 226 water level detector, 227 drying chamber 228 drain valve 231 exhaust pump, 232 filter

Claims (5)

A primary processing section for heating the incinerated materials;
A gas generated from the incinerated product in the primary processing unit is introduced, and a secondary processing unit for burning the introduced gas;
A gas burned in the secondary processing unit is introduced, and a cooling unit for rapidly cooling the introduced gas;
A controller for controlling the primary processing unit, the secondary processing unit, and the cooling unit;
The controller heats the incinerated product at a low temperature in the primary processing unit, gasifies polymer plastics in the incinerated product, introduces the polymer into the secondary processing unit, and the secondary processing unit The gas introduced from the primary processing unit is incinerated, and the polymer plastics in the incinerated product are gasified in the primary processing unit, incinerated in the secondary processing unit, and then in the primary processing unit An incineration system, wherein the residue of the incinerated product is heated at a high temperature to control the metals in the incinerated product to melt. The primary processing unit includes a first heating device that heats the incinerated product from a side surface by a heating coil;
The combustion system according to claim 1, further comprising a second heating device that heats the incinerated product from a bottom surface by a heating coil. The secondary processing unit is disposed in a gas introduction portion from the primary processing unit, and a third heating device that heats the gas introduced from the primary processing chamber by a heating coil;
The combustion system according to claim 1, further comprising: an auxiliary combustion device that combusts the gas introduced by being heated by the third heating unit. The second heating device has a funnel shape, is disposed on the bottom surface of the primary processing unit, and collects the melt at the discharge port,
A heating member placed on the funnel,
The incineration system according to claim 2, further comprising: a heating coil that is supplied with an alternating current and generates heat by induction heating of the heating member. The third heating device includes a conductor member having a plurality of paths for introducing the gas generated in the primary processing unit into the secondary processing unit;
The combustion system according to claim 3, further comprising a heating coil that generates heat by induction heating of the conductor member.

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