TWI289644B - Method and apparatus for treating waste - Google Patents

Abstract

The present invention provides a method and apparatus for treating waste, capable of solving problems of (a) stoppage of a duct, (b) time for charging waste in a furnace, (c) discharging of unused carbon, (d) controlling of a waste upper-face position, (e) recycling of halogen class materials, (f) charging of harmful waste materials, and (g) rising in internal pressure in a basin chamber. A waste treatment furnace comprises a furnace body, a gas outlet provided in the upper part of the furnace body, an outlet for molten slag and/or molten metal, located in the lower part of the furnace body, a waste inlet provided between the outlet for molten slag and/or molten metal and the gas outlet, a furnace center lance provided in the upper part of the furnace body along the furnace axis and for blowing a burn-assisting gas downward into the furnace, an upper tuyere arranged in more than one step in the furnace wall between the waste inlet and the gas outlet, and a tuyere arranged in more than one step in the furnace wall between the waste inlet and the outlet for molten slag and/or molten metal. When the waste is charged into the waste treatment furnace to perform at least one of the treatments of burning, gasification, and melting, discharge gas generated in the at least one of the treatments is cooled in the furnace in the vicinity of the inlet of a duct that is connected to the furnace body of the waste treatment furnace and guides discharge gas to outside the furnace body.

Description

1289644 (1) Technical Field of the Invention The present invention relates to at least combustion, gasification or melting of general waste or industrial waste (hereinafter, collectively referred to as "waste" in the specification of the present invention). One of the treatment methods and treatment devices for waste disposal. In particular, in the present invention, the organic matter contained in the waste gas is recovered and recovered as a fuel (hereinafter, simply referred to as "energy gas"), and the low-boiling metal contained in the waste is recovered as dust. The amount of ash contained in the waste, that is, the valuable metal (hereinafter simply referred to as "metal") is recovered as the slag and the molten metal, and the waste treatment method and treatment device for the treatment can be stably realized on a commercial scale for a long period of time. . In addition, in the present invention, the waste is represented by, for example, municipal waste represented by kitchen waste, plastic scraps or iron filings, and pulverized dust, ash, and sand dumped waste of discarded automobile or home appliance products. , sludge, sludge, iron dust, medical waste and waste wood. [Prior Art] Some wastes such as general waste such as domestic garbage and industrial waste have been incinerated in the past. However, when these wastes are incinerated, the treatment temperature is about 200 to 600 ° C, especially about 300 ° C. Moreover, the final disposal location of the ash is difficult to ensure, and from the point of view of efficient use of resources, it needs to be effectively recycled. Therefore, it is not possible to fully cope with the treatment of waste generated by incineration in the past. - 5,896, 546. (2) In view of the above problems, the inventors of the present invention have proposed to use a combustion-promoting property toward the lower side along the furnace axis by International Publication No. WO00/45090. The gas is injected into the center of the liftable furnace in the furnace, and the upper air outlet, the combustion-supporting gas, the combustion-supporting gas, and the fuel, which are disposed at an angle from the furnace axis, are separated from the arrangement of the combustion-supporting gas, and the fuel is sprayed toward the furnace shaft. The invention relates to a gasification furnace and a gasification melting method which can prevent the generation of a low temperature region inside the gasification furnace body by the lower tuyere of the one or more stages arranged in the furnace, and can collectively carry out the combustion treatment of the waste. . According to the invention, it is possible to stably recover the furnace slag having a high additional price and various metals and energy gases. [Invention] The inventors of the present invention have the gasification furnace proposed in the International Publication No. WO 00/45090 (hereinafter, referred to as "basic" In the gasification furnace, the basic gasification furnace has the following problems (a) to (g) in order to solve these problems (a) ~ ( g), providing a treatment method and a treatment device that can make the basic gasification furnace more high-performance and can be applied to refractory waste. (Clogged clogging) In recent years, many processing furnaces that use waste, burn, vaporize, or melt waste. However, these treatment furnaces may adhere to the inner wall of the pipeline which flows with the exhaust gas due to the type of waste, and may accumulate dust after the pipeline is blocked. For example, when the waste contains a large amount of low-boiling substances, the evaporation in the furnace causes a part of the evaporation to adhere to the inner wall surface of the pipe, and then grows to block the pipe. In the above case, there is a possibility that the operation of the treatment furnace has to be stopped, and there is a possibility that the operation cannot be stabilized for a long period of time. In order to suppress the discharge of the dioxin in the basic gasification furnace, the gas temperature in the upper part of the furnace body is 1000 ° C or more and 140 (TC or less, the gas is discharged from the gas discharge port, and the cooling device of the exhaust gas in the subsequent stage is quenched to 200 °. C or less. Especially in the case of completely suppressing the generation of dioxin, it is preferable to be higher than the temperature of the upper part of the furnace. However, since the temperature of the gas in the furnace is high, a low-boiling substance containing waste is evaporated in the furnace. The adhesion of the inner surface of the pipe to the inner surface of the pipe may cause clogging of the pipe. As a technique for preventing clogging of the relevant pipe, a refrigerant such as water or spray is sprayed toward the inside of the pipe to cool and solidify the exhaust gas. The low-boiling-point gas-like substance and the invention for preventing the adhesion of the pipe (Japanese Patent Laid-Open Publication No. 2001-33027, the same as JP-A-2002-349841, JP-A-7-197046 The invention discloses a method of scraping off a pipe attachment (JP-A-2002-168433). However, these inventions have the following problems: that is, when the refrigerant is injected into the inside of the pipe, Because the type of waste or the injection position of the refrigerant does not provide sufficient clogging suppression effect. For example, even if the refrigerant is injected into the inside of the pipeline, the exhaust gas temperature will remain high near the inlet of the pipeline. Low-boiling gaseous substances will adhere to the vicinity of the inlet of the pipeline, and finally there will be a flaw that will block the pipeline. And 'When the spray is sprayed into the inside of the pipeline', the inner diameter of the pipeline is not set as appropriate 1289644 (4) When the spread angle of the spray is sprayed, the refrigerant such as spray may collide with the inner wall of the pipe or adhere to form unvaporized water, which may cause difficulty in controlling the gas cooling device disposed downstream of the gasification furnace. When the low-boiling-point gas substance adheres to the inner wall of the pipe and blocks the pipe, it is most effective to use a mechanical removal means. For example, JP-A-2002-168433 discloses that the inside of the inserted pipe is provided. a pipe cleaning device that scrapes off a drive shaft of the vane and a drive means that rotates the drive shaft and reciprocates in the axial direction. At this time, the drive shaft rotates while rotating The reciprocating motion is carried out, so that the gas generated in the furnace leaks from the gas seal portion or causes a blow in the suction line of the outside air. In particular, there is a danger that CO gas leaks to the outside in the furnace of the CO gas generated by the operation. Moreover, when CO gas is used as an energy source, the intake of outside air is related to the reduction of the heat of the obtained gas. Further, in addition to the central axis of the drive shaft, there is air flow for cooling the drive shaft, but the inside of the pipe is formed. In the case of high temperature, the outer surface of the drive shaft may be thermally damaged. Especially when the inside of the pipeline is obviously blocked, the load on the drive shaft has to be increased, so that the time required for the plug to be removed is prolonged and the heat is increased. Damage, so that the damage of the device or the leakage of gas is more significant. (b) When the filling time of the furnace is used to treat the waste by the basic gasification furnace, the height of the upper end surface of the waste discharged into the furnace is controlled to a predetermined level. It is an important factor in the stabilization of operations. The rise of the gasification furnace is to start the waste charging after the temperature in the furnace reaches the pre--8 - 1289644 (5) constant temperature by the burner. Then the waste is slowly accumulated and the height of the upper end surface of the waste is adjusted. To the target level. However, it takes a considerable amount of time to raise the height of the upper end face of the waste to a predetermined level. In addition, in the middle of the temperature rise, the combustion temperature in the furnace is inevitably passed through a temperature range of 200 to 600 ° C which is likely to generate dioxin, so that the halogen-containing waste such as chlorine is a constituent element of the dioxin-like component. It is loaded from the stage of the temperature rise of the furnace, and when it is stacked, the dioxin is generated when the gasification furnace rises. (c) Exhaust of carbon is not used. The operation of the basic gasification furnace is such that a part of the carbon contained in the waste is scattered through the pipeline in an unused state, and is then recovered by dust using a dust removing device. In order to reduce unused carbon, an aqueous shift reaction (C + H20 = C0 + H2) can be used to convert unused carbon to CO gas. H2o is required to carry out the aqueous shift reaction. Among them, the moisture contained in the waste containing most of the waste is consumed in the gasification reaction of the carbon of the thermal decomposition residue at a position lower than the upper end surface of the waste. Therefore, the amount of carbon of the thermal decomposition residue burned before the lower tuyere is reduced, and the combustion temperature before the lower lower tuyere is maintained is difficult, and the amount of ash contained in the waste and the melting of the metal, and slag or melting are not stably performed. The discharge of metal. In addition, when a large amount of water is contained in the waste, a large instantaneous gas change occurs after the waste is introduced, and the operation cannot be stably performed, and the heat generation of the gas is lowered due to evaporation of water. Therefore, it is not ideal to contain a large amount of moisture in the waste. Japanese Laid-Open Patent Publication No. Hei 8-152118 discloses a combustion temperature by using a melting temperature of ash amount as an upper tuyere level by supplying steam from an upper tuyere provided in the 1289644 (6) waste charging layer. The generation of the thermal decomposition residue of the upper tuyere level or the semi-melt of the combustion of the combustible gas is suppressed, so that the invention in which the semi-molten adheres to the inner wall of the furnace can be suppressed. In other words, the steam injected from the upper tuyere provided in the sump can suppress the combustion temperature set at the height of the upper vent to a low temperature, and suppress the generation of the semi-melt at the level. Further, as the vapor is injected into the entangled layer, the aqueous shift reaction is carried out, and the progress of carbon gasification can be obtained. However, when steam is injected into the charging layer of the waste gas for carbonization, the reaction between the carbon contained in the thermally decomposed residue and the vapor is consumed. Therefore, it is difficult to reduce the amount of carbon to be supplied from the lower seal to the combustion of the combustion-supporting gas, and to maintain the combustion temperature before the high lower tuyere. Therefore, there is a possibility that the amount of ash contained in the waste and the melting of the metal, and the discharge of the slag or the molten metal are not stably performed. (d) The control of the upper end position of the waste is basically controlled. The organic matter in the product is gasified and recovered as an energy gas, and the vertical furnace in which the amount of ash in the waste and the metal are recovered as a melt. Each of the gasification furnaces includes: a gas discharge port disposed at an upper portion of the furnace body; a slag and a molten metal discharge port disposed at a lower portion of the furnace body; and a waste disposed between the slag and the molten metal discharge port and the gas discharge port The upper part of the furnace body is arranged along the axial direction of the furnace to spray the combustion-supporting gas into the furnace center block which can be freely raised and lowered; the furnace wall between the waste charging inlet and the gas discharge port is set to be sprayed into the combustion-supporting property. -10- 1289644 for gas (7) Upper tuyere; and the wall between the waste inlet and the slag and molten metal discharge outlet is set to be more than one stage toward the furnace, and the combustion-supporting gas or combustion-supporting gas and fuel are directed toward The lower tuyere sprayed in the direction of the furnace shaft. Moreover, the gasification furnace can melt the amount of carbon in the residue of the thermal decomposition of the waste after being heated at a high temperature by the upper end surface of the waste placed in the furnace, so that the amount of ash or metal in the residue can be melted without using expensive coke. . However, the composition of the waste is not necessarily a large number of inhomogeneities, and there is a possibility that almost no carbon is present in the thermal decomposition residue. For example, carbonaceous materials such as plastic chips and chopper dust are almost vaporized by thermal decomposition reaction, so that the thermal decomposition residue has a very small carbon content. Therefore, when maintaining the position of the upper end surface of the waste in the furnace, it is necessary to frequently perform the adjustment operation of injecting the amount of the combustion-supporting gas from the lower tuyere and the furnace center block, and it is necessary to have skilled operation. (e) Regeneration of halogen-based raw materials In addition to the source of dioxin, the halogens such as chlorine or bromine contained in the waste are highly expensive, and it is expected that the raw materials can be efficiently regenerated. However, an effective treatment method and a regeneration method for waste having a high chlorine content rate have not been established. At present, halogen-containing wastes such as chlorine are incinerated in an incinerator, but because of the low combustion temperature, it is necessary to have a high gas treatment technology for suppressing the discharge of dioxin. The basic gasification furnace is to vaporize and melt the waste at a high temperature by the injection of high-concentration oxygen, and the high-temperature gas generated by the gas cooling device is quenched, so that the dioxin is hardly discharged, and a large amount of halogen-containing can be treated harmlessly. Waste. The chlorine contained in the waste forms a hydrogen chloride gas such as hydrogen chloride gas in the furnace, and the halogenated hydrogen gas is placed in a dust removal device in the latter stage of the gas cooling device to be sprayed with an auxiliary agent such as slaked lime, and is separated and removed from the generated gas. In this case, in order to suppress the re-synthesis of dioxin and the corrosion of halogen, the outlet temperature of the gas cooling device is set to be 120 ° C or more and 2 ° C or less, and the temperature inside the dust removing device is set to 100 ° C or more. However, in the case of waste containing a large amount of halogens, in order to efficiently recover chlorine or bromine halogen, it is difficult to regenerate the halogen by fixing the halogen with calcium chloride in the gasification furnace. Moreover, the hydrogen halide gas generated forms a high concentration and is liable to cause corrosion of equipment. In addition, Japanese Laid-Open Patent Publication No. 2001-162248 discloses that a waste plastic containing vinyl chloride is thermally decomposed at 250 to 500 ° C, and a chlorine-containing exhaust gas is burned by a combustion device, and a combustion gas is used as a heat source to generate steam in the boiler. The combustion gas after the generation of the vapor is supplied to the cooling device for cooling, and the chlorine recovery device is used to recover the hydrogen chloride in the cooled gas. The exhaust gas temperature before the cooling device is maintained at 200 ° C or higher in order to suppress the corrosion caused by hydrogen chloride. However, temperatures above 200 °C will result in the re-synthesis of dioxin. In addition, when halogen-containing plastic waste is thermally decomposed and vaporized at a low temperature of 500 ° C or lower, tar is generated, which may cause blockage of the piping. Further, JP-A-2000-202419 discloses a method of treating a waste containing a halogen-containing flame-resistant material by removing hydrogen chloride generated by a gas water washing apparatus, but does not describe a detailed temperature piping condition for recalling equipment corrosion. Wait, for an unknown state. (f) Hazardous waste device-12- (9) 1289644 According to the basic gasification furnace, in addition to medical waste and contaminated soil, it can be used for the harmless treatment of hazardous waste such as polychlorinated biphenyl (PCB). . The harmful waste falls into the furnace after being placed in the furnace and reaches the upper end surface of the waste charging layer, but the waste contained in the furnace reaches a low boiling point before reaching the upper end surface of the charging layer. When the harmful components are vaporized, the harmful components that have been vaporized will be discharged from the gas discharge port before they are completely decomposed. (g) Internal Pressure Rise of the Melting Chamber In International Publication No. W000/45090, it is disclosed that the basic gasification furnace is expected to have a space in which it can be stored once before discharging the frit and molten metal. Melting chamber. The provision of the melt chamber allows the furnace to form a dry treatment tank in the furnace bottom without accumulating frit or molten metal, thereby stabilizing the operation of the furnace. However, in order to perform maintenance of the equipment or the like, the gasification furnace may be temporarily retained in a state where the residue or slag of the waste remains in the furnace. In the subsequent ascending operation, there is a possibility that the waste inside the residual gasification furnace or the cooling slag blocks the contact portion between the furnace and the melting chamber, and the gas generated inside the molten chamber may not easily flow in the furnace body. The problem is that the pressure in the molten chamber rises and the gas is exposed from the slag and the molten metal discharge port. SUMMARY OF THE INVENTION -13- (10) 1289644 The present invention provides the following solutions to the problems (a) to (g) of the above basic gasification furnace. (1) Solution to the problem (a) The present invention cools the high-temperature exhaust gas generated in the furnace, for example, in a furnace before the furnace body of the waste gas treatment furnace such as the basic gasification furnace flows into the pipeline. Specifically, for example, a refrigerant composed of at least one of water, an inert gas, a production gas, or a vapor is injected in the vicinity of the furnace outlet (in the furnace near the inlet of the pipeline), and the exhaust gas is exhausted near the inlet of the pipeline. Cooling in the furnace. Thereby, the surface temperature of the low-boiling gas-like substance in the exhaust gas near the inlet of the pipe is surely lowered to the temperature at which the inner wall of the pipe is not attached. It is preferable that the temperature of the exhaust gas flowing into the pipeline is blocked by the exhaust pipe, and the temperature is low. However, in order to suppress the re-synthesis of the dioxin, the exhaust temperature inside the pipeline is maintained at 80 (TC or more is preferable, preferably It is 850 ° C or higher, and when the refrigerant is sprayed into the vicinity of the furnace outlet, the temperature of the inlet of the gas cooling device provided in the vicinity of the rear portion can be lowered, so that the amount of the spray used in the gas cooling device can be reduced, and the burden can be reduced. Further, the present invention proposes a treatment device for a waste plugging device which can mechanically remove a plug in a short time when a pipe is clogged with a low-boiling gas substance adhered to an inner wall. First, since the mechanical removal operation of the clogging is performed for a short period of time, the operation of the clogging device can be effectively performed at a stage where the degree of clogging of the pipe is small. Therefore, the present invention can monitor the pipeline at the inlet and outlet of the pipeline - 14- 1289644 (11) The differential pressure gauge on the inlet side and the discharge side differential pressure is judged as being inclined when the differential pressure display has a tendency to rise from the operation start time. The clogging is started to operate the clogging device. Alternatively, the clogging device may be periodically operated regardless of the clogging of the pipe. (2) The solution to the problem (b) is to load as early as possible. The height of the upper end surface of the charge in the basic gasification furnace is increased to the control level at the time of operation, and the carbon material can be efficiently installed from the temperature rising stage of the furnace, and in order to improve the level of the upper end surface of the load. When the total concentration of the halogens contained in the carbon material is less than or equal to 1%, the temperature can be raised without causing the dioxin. In accordance with the present invention, the burner is burned while the temperature of the basic gasification furnace is being raised. It is possible to increase the height of the upper end of the load to a predetermined level and to shorten the charging time in the furnace. (3) Solution to the problem (c) The present invention proposes The vapor is sprayed from the enthalpy layer into the upper portion to reduce the unused carbon, whereby the vapor is vaporized only by contact with the unused carbon in the upper portion of the furnace. The injected vapor does not disintegrate with the thermal decomposition in the enthalpy layer. The slag is in contact with the carbon, so that the ash component and the metal contained in the waste can be stably melted, and the slag and/or the molten metal can be stably discharged. Even if the carbon in the waste cannot be completely vaporized, it is used as the unused carbon. When the dust removal equipment recovers the whitefly, it only needs to be put into the gasification furnace again. At this time, the particle size of the dust is less than 1 mm, so when it is put into the -15- (12) 1289644, there will be a furnace. In the meantime, it is possible to prevent the dust from scattering by mixing and compacting the powder containing unused carbon and the waste at the time of input. (4) The present invention is solved with respect to the problem (d) In the case of wastes having a small amount of carbon which is thermally decomposed, the carbon material can be easily controlled to control the position of the upper end surface of the smelting layer. Even in a basic gasification furnace, the carbon material can be mixed and then compacted. A piece is placed in the furnace. At this time, even if a carbon material having a fine particle diameter is used, there is no fear that the air permeability is poor. Further, in the basic gasification furnace, since the center portion of the fire point concentration furnace does not deteriorate the liquid conductivity of the melt, the molten slag cannot be stably discharged. Therefore, the carbon material is not limited to expensive coke at all, and a carbon material containing carbon which thermally decomposes residual carbon such as wood can also be used. Further, in the case of charging a carbon material having a large particle diameter after the pre-screening, it is preferable to use a charging device having two valves having a waste charging path for charging the waste into the furnace. When the external side valve is opened, the loading device supplies the space between the external side valve and the internal side valve while closing the internal side valve, and closes the external side valve and opens the internal side valve to open the carbon material. Loaded into the furnace. One of the valves on the outer side of the charging device or the inner side valve is constantly maintained in a closed state, so that a large amount of gas in the furnace can be prevented from leaking out of the furnace through the charging device, or a large amount of air outside the furnace can be sucked into the furnace. Further, in order to solve the problem (d), the carbon material to be charged is heated under the temperature conditions in the furnace so that the dioxin can be completely thermally decomposed. Therefore, there is no problem even if the halogen concentration in the carbon material is high. . -16- (13) 1289644 (5) Solution to Problem (e) The present invention is an exhaust gas guided by a pipe connecting a gas discharge port of a basic gasification furnace body, (i) The hydrogen halide gas contained in the exhaust gas after the dust removal is recovered as an acid by an acid recovery device, and the recovered acid is converted into a halogen, and/or (ii) cooled to 1 Torr (after cooling in TC or lower) The hydrogen halide gas contained therein is condensed, and the hydrogen halide contained in the exhaust gas is recovered as an acid, and the recovered acid is converted into a halogen. Thereby, the discharge of the dioxin or the corrosion of the equipment can be suppressed, and the waste can be carried out. Recycling of halogen-containing raw materials. (6) Resolving harmful wastes such as medical waste, contaminated soil, or polychlorinated biphenyls into basic gasification furnaces The sealed container can be efficiently inserted into the sealed container from the loading device having the two valve bodies arranged in parallel in the waste charging passage, thereby causing the generated harmful gas to pass through the furnace under a sufficiently high temperature condition. Residence time, complete decomposition (7) Resolving the problem with the problem (g), when the furnace is stopped, it is caused to cause clogging of the connection portion between the furnace and the melting chamber due to waste or cooling slag in the residual furnace. When the pressure in the refining chamber rises, the piping for discharging the gas generated in the refining chamber can be effectively provided. -17· (14) 1289644 [Embodiment] The present invention will be described in detail with reference to the accompanying drawings. The embodiment of the treatment method and the treatment apparatus relating to the waste is as follows. The first embodiment is a schematic diagram for the detailed description of the gasification furnace of the waste used in the embodiment. The same as the furnace of the gasification furnace 1 of the benzene embodiment is shown. The bed 1a is lined with the lining refractory 2, and the furnace body 1a has a waste charging port 4 for discharging the waste 3 and generating energy gas (hereinafter, simply referred to as "exhaust gas") and discharged. a gas discharge port for powder meal, and a pipe 6 through which the gas discharge port 5 communicates with the inner space of the furnace body la. The waste inlet 4 is provided with a push rod 7, and the charged carbon material 8 and the waste 3 are simultaneously pressed. Real state from waste The waste material inlet 4 is installed. The reference numeral 9 in Fig. 1 is such that the combustion-supporting gas 9a is sprayed downward into the furnace along the furnace shaft (the furnace center axis) to form a center block which can be lifted and lowered. The symbol 10 is in the furnace. One or more stages (two stages in this example) are disposed on the furnace wall of the body la, and the upper tuyere in which the combustion-supporting gas 1 〇a is sprayed in the direction away from the furnace axis direction is provided. Further, the symbol 1 1 is disposed on the furnace wall in the protruding furnace. One stage or more (in this example, two stages) is a lower tuyere in which the combustion-supporting gas 11 a or the combustion-supporting gas 1 1 a and the fuel lib are injected in the direction of the furnace shaft. In the vicinity of the exhaust gas outlet of the upper portion of the furnace body la, for example, one or more nozzles 13 for the refrigerant 12 which are formed by injecting at least one of an inert gas, a production gas or a vapor are provided. In the inside of the furnace body 1a of the gasification furnace 1, when the generated gas is heated to l〇〇〇t or more, -18-1289644 (15) is maintained for 2 seconds or longer to decompose the dioxin. The generated gas generated in the furnace heated to l 〇〇〇 ° C or higher is cooled by the refrigerant 1 2 injected from the refrigerant injection nozzle 13 provided in the vicinity of the exhaust outlet provided in the upper portion of the furnace body 1 a. The temperature of the exhaust gas flowing into the inside of the line 6 is preferably a low temperature side in order to suppress the clogging of the line 6, but the temperature of the exhaust gas in the resynthesis line 6 of the dioxin-like line is 800 ° C, preferably 850 °. Above C. The gas in the line 6 is maintained at 800 °C or higher, and the exhaust gas cooling device (not shown) in the rear stage is quenched to 200 °C or lower. Thereby, the re-synthesis of the dioxin is suppressed, and the discharge amount of the dioxin from the whole process can be remarkably suppressed. When the refrigerant 12 injected into the inside of the furnace body 1a from the nozzle 13 is composed of at least one of water, an inert gas, a production gas or a vapor, adhesion to a low-boiling gas substance on the inner surface of the pipe 6 can be suppressed. However, it is better to use water. When an inert gas is used as the refrigerant 12, the heat generation of the high-calorie gas in the furnace is lowered. Moreover, steam does not have latent heat of vaporization compared with water, and the original unit of cooling of the produced gas is high. Therefore, a large amount of unneeded water is introduced during the exhaust, which is disadvantageous for the economics including the post-treatment steps and the like. Therefore, in order to increase the cooling efficiency, it is preferred to use water (especially water-like water) which can be separated from the high-calorie gas generated in the subsequent step as the refrigerant. Since the atomization of water is atomized by a gas, it is preferable to use a production gas instead of an inert gas to suppress a decrease in heat generation gas. Further, when solid dust is deposited on the pipe 6, the gas 15 is injected into the pipe 6 from one or more nozzles 14 into which the high-pressure gas can be injected, and the solid dust is blown to the inside and/or the rear of the furnace body 1a. On the side of the gas cooling unit, clean the inside of the line -19- (16) 1289644. As described above, according to the present embodiment, the refrigerant is injected into the front side of the line 6, and clogging of the line 6 can be prevented. Fig. 2 is an explanatory view showing a deposit removing device 16 which constitutes a waste disposal device by mechanically removing the deposit on the inner wall of the pipe 6 in the gasification furnace 1 of the present embodiment. The degree of clogging of the deposits inside the pipe 6 can be predicted from the difference in pressure between the pressure of the inlet portion 6a of the pipe 6 and the pressure of the outlet portion 6b. The differential pressure change is performed by the differential pressure measuring device 18 for continuity monitoring. In other words, when the absolute enthalpy of the differential pressure measured by the differential pressure measuring device 18 is compared with the enthalpy at the initial stage (at the start of the operation), it is predicted that the clogging in the conduit is performed. In the present embodiment, in the above case, the attached mist removing device 16 is used to remove the attached matter. First, the drive shaft 19-1 is advanced and retracted, and then the forward and backward movement of the drive shaft 19-2 is performed, whereby the deposit 17 can be peeled off from the inner wall of the pipe 16. The drive shafts 19-1 and 19-2 are moved in the direction in which the line 6 extends by the lifting device 20. Further, the drive shafts 19-1 and 19-2 are cooled to the vicinity of the front end by water cooling. Thereby, the loss or damage of the drive shafts 19-1 and 19-2 due to the heat load is suppressed. The drive shafts 19-1 and 19-2 are provided with water supply and drainage pipes (not shown) for supplying water and water to the cooling water 21, and can also be used under high temperature conditions. Further, the drive portions of the drive shafts 19-1 and 19-2 are provided with the air leakage preventing means 22 in a dense manner, thereby preventing the gas in the system from leaking out of the system during the operation of the drive shafts 19-1 and 19-2. 1289644 (17) It is preferable to operate the drive shafts 19-1 and 19-2 at a time when the inner wall of the pipe 6 is blocked to a small extent. When the degree of clogging is small, the drive shafts 19-1 and 19-2 do not need to be rotated as disclosed in Japanese Laid-Open Patent Publication No. 2002-1 68433, and a large load for removing the clogging is not required for the drive shafts 19-1 and 19-2. , the plug can be removed in a short time. Therefore, gas leakage is not generated from the air leakage preventing device 22, and the life of the device can be improved. For example, it is preferable to increase the average enthalpy of the enthalpy of the differential pressure measuring device 18 from the start of the operation for 2 hours, and increase the time from 20 mmH2O to 400 mmH20, and the pipe 6 is not clogged, and the general gasification and melting operation is performed. The drive shafts 19-1, 19-2 are retracted to the bag position to 24, and the valve 23 is closed, whereby the leakage of the gas in the furnace can be completely prevented. The shut-off valve 23 can simultaneously perform maintenance of the deposit removing device 16 and the like during the operation of the gasification furnace 1. Further, when the drive shafts 19-1, 19-2 are not operating, the drive shafts 19-1, 19-2 are in standby to the standby position 24, and when the valve 23 provided at the standby position 24 is closed, gas leakage and air are prevented. Inhalation. The valve 23 is provided in the normal operation in which the drive shafts 19-1, 19-2 are not moved, and the air leakage preventing means 22 is hardly affected by the heat in the pipe 6, so that the life of the air leakage preventing means 22 can be increased at the same time. Further, when the recessed portion 25 of the drive shafts 19-1, 19-2 comes into contact with the air leakage preventing means 22, the gas is sealed as well. The outer diameter d of the largest diameter portion of the drive shafts 19-1, 19-2 is preferably set to 50% or more of the inner diameter D of the pipe 6. Further, the angle α of the scraping members 1 9 -1 a and 1 9 - 2 a at the U end of the drive shafts 19-1 and 19-2 is preferably 10 degrees or more - 21 - (18) 1289644 150 degrees or less. Further, a device such as the elevating device 20 is provided, and in order to remove the attached matter 17, the drive shafts 1 9 -1, 1 9 - 2 of sufficient length should be used, but the lengths of the drive shafts 19-1, 19-2 are too long. The height of the building must be raised to a height above necessary. Therefore, the lengths of the drive shafts 19-1, 19-2 are preferably three times the length L of the drive shafts 19-1, 19-2 from the standby position to the drive shafts 19-1, 19-2. The advancement limit 26 of the drive shafts 19-1, 19-2 is a drive shaft 19-2 as shown in Fig. 2, and it is preferable to advance from the gas discharge port 5 to a position of about 10 mm to 300 mm when advancing toward the inside of the furnace. Further, when the drive shaft 19-1 of Fig. 2 advances in the direction intersecting the pipe line, it is preferable to advance with respect to the center axis of the intersecting pipe: a position of t50 mm. Further, the front end portions of the drive shafts 19-1 and 19-2 are provided with the optical fiber observation mirror 27 of Fig. 3, and the clogging condition in the pipe 6 can be monitored while the drive shafts 19-1, 19-2 can be effectively Running. Basically, the clogging condition can be estimated by the differential pressure in the pipe 6, but the amount of the attached matter 7 is extremely small, and the measurement result of the differential pressure may not be noticeable. When the micro-adhesions 17 remain in the cleaning pipe 6, there is a possibility that the plugs are re-growth with these as the core. Therefore, it is possible to efficiently perform the work while observing the inside of the pipe 6 by the optical fiber observation mirror 27 or the like. When the inside of the pipe 6 is often observed by the optical fiber observation mirror 27, the necessity of differential pressure measurement is not required, but the drive shafts 19-1, 19-2 must be regularly inserted into the pipe 6, so that the drive shaft is made 19-1, 19-2 may be damaged by heat. Further, the optical fiber observation mirror 27 adheres to dust and the like and cannot be observed for a long time. -22-1289644 (19). Also, the valve 23 must be in an open state, resulting in a shortened life of the sealing device 22. The replacement or repair of the front end portions 19-la, 19_2a can be returned to the standby position 24, and the standby position 2 4 is closed, and the valve 2 3 can be performed even during operation. Next, referring to the first diagram of the gasification furnace 1 showing the waste used in the present embodiment, the control of the height of the upper end surface of the furnace charge during the temperature rise of the gasification furnace 1 is rapidly increased to the control during operation. The method of shortening the charging time in the furnace as follows is as follows. In the present embodiment, the carbon material 32 having a halogen concentration of 0.1% or less such as chlorine is charged to a predetermined height in the gasification furnace 1 from the stage before the temperature rise of the gasification furnace 1 is started. Here, the predetermined height is the height between the waste loading port 4 or the loading device 28 and the lower tuyere 11 . The temperature rise is formed, for example, from the loading device 26 in which the double gate valve 29 is disposed, into the furnace, and the state in which the valve 29a and/or the valve 29b are closed after the fire is applied to the upper end surface of the previously deposited carbon material 32, and is sent from the center block 9 The entry of the combustion-supporting gas 9a to start the combustion of the previously charged carbon material 32 is a simple sequence. The combustion condition of the carbon material 32 can often be carried out from the furnace monitoring window 30 provided at the upper portion of the furnace body la. Further, the combustion-supporting gas 1 1 a may be supplied from the lower tuyere 1 1 or the carbon material 32 may be burned in the vicinity of the lower tuyere 1 1 . The confirmation of burning in front of the lower tuyere 1 1 can be confirmed visually. The upper end surface level of the enthalpy layer of the carbon material 32 was measured one by one, and the amount of the carbon material 32 supplied to the furnace was adjusted to maintain the level of the above end surface level. As described above, the -23-(20) 1289644 height of the upper end surface of the furnace can be raised to the control level during operation in the heating stage of the furnace, thereby shortening the furnace charging time. Next, the means for reducing the unused carbon in the present embodiment will be described below. In the gasification furnace 1 shown in Fig. 1, the dust scattered from the pipe 6 to the outside of the furnace contains unused carbon. In the present embodiment, steam is injected into the furnace to reduce the amount of unused carbon. At least one of the nozzle 33, the furnace center block 9 or the upper tuyere 1 〇 between the upper end surface of the waste and the gas discharge port 5 provided in the gasification furnace 1 shown in Fig. 1 is sprayed with steam. The shift reaction (c + h2o = co + h2) converts unused carbon to CO gas. Among them, the amount of the vapor 34 to be injected can be easily controlled by the flow meter, so that the amount of water vapor necessary for the aqueous shift reaction can be correctly supplied. Further, since the injected steam 34 can effectively convert the unused carbon into CO gas, it is preferable that the vapor 34 is sprayed at a wide angle. Thereby, the vapor 34 can be uniformly sprayed into the peripheral direction of the furnace body 1a, and the above-described aqueous displacement reaction can be efficiently performed. Even if the carbon in the waste is not completely vaporized and the carbon is not recovered by the dust removing device, it can be put into the gasification furnace 1 again. At this time, the particle size of the dust is as small as 1 mm or less, although it is scattered in the furnace. However, in this example, the push rod 7 and the waste 3 shown in Fig. 1 can be mixed and compacted with unused carbon. After the powder is loaded, it can suppress the scattering of the powder in the furnace. In the gasification furnace 1 shown in Fig. 1, when the waste material having a small amount of carbon is thermally decomposed, the carbonaceous material 8 and/or the carbon material 36 are introduced, and the gas can be easily produced. The control of the filling level, that is, the control of the upper end position of the waste, is explained below. As described above, the gasification furnace 1 shown in Fig. 1 is provided with a waste charging inlet 4 to which the pusher 7 is attached, and the carbon material 8 is mixed and compacted in the furnace together with the waste 3. This can suppress scattering of the carbon material 8 having a fine particle diameter in the furnace. Further, when the carbon material 36 having a particle diameter of 5 mm or more is previously selected, it is preferable to use the double gate valve 29. At this time, only the carbon material 36 can be put in from the independent loading device 28 having the double gate valve 29. The loading device 28 having the double gate valve 29 freely drops the carbon material 36 between the upper gate valve 29a and the lower gate valve 29b by opening the upper gate valve 29a, then closes the upper gate valve 29a, and opens the lower gate valve 29b to load the carbon material 36. Into the furnace. According to this loading means, it is often operated in a state where one of the upper gate valve 29a or the lower gate valve 29b is closed, so that a large amount of furnace gas can be prevented from leaking out of the furnace through the loading device 28, or outside the furnace. A large amount of air is drawn into the furnace. , /

V As described above, when the carbon material 8 and/or the carbon material 36 are put into the furnace, even if the waste having less carbon residue is thermally decomposed, the height of the burring layer can be easily controlled. The carbon material 8 and/or the carbon material 36 are heated after the temperature in the furnace is hardly generated by the dioxin. Therefore, the concentration of the halogen in the carbon-containing material 8 and/or the carbon material 36 is not particularly limited. Next, in the present embodiment, the state in which the raw material of the halogen is regenerated will be described below. -25- (22) 1289644 Fig. 4 to Fig. 7 are explanatory views showing the flow of the system for recovering halogen in the present embodiment. First, the system shown in Figs. 4 and 5 will be described below, and the systems shown in Figs. 6 and 7 will be described below. In Fig. 4, the waste 3 is charged into the gasification furnace i of the present embodiment. A high-calorie gas 40 that vaporizes the organic matter contained in the waste 3 as a fuel is produced. The amount of ash and the valuable metal are converted into slag 38 and molten metal 39. Since the discharge of the dioxin in the gasification furnace 1 is reduced, the temperature of the upper portion can be suppressed to be less than 1 〇〇〇 ° C to 1400 ° C, and the waste 3 can be directly charged into the high temperature region of 500 1200 ° C or higher. After the gasification zone is decomposed and maintained at a high temperature of 1 ° C or higher in the furnace for 2 seconds or more, the high-calorie gas 40 which is discharged from the outside of the furnace is quenched by the spray 44 sprayed from the nozzle 43 by the cooling device 42 through the line 41. To 120 ° C or more and 200 ° C or less. Thereby, even when the waste having a large halogen content is treated, the re-synthesis and discharge of the dioxin can be suppressed, and the low discharge amount of the dioxin can be suppressed as a whole. Further, the halogen-containing plastics generate tar during low-temperature thermal decomposition, which causes problems such as adhesion to piping and the like. However, the gasification furnace 1 is subjected to high-temperature thermal decomposition and gasification, and tar is not generated. The gas passing through the line 45 at the outlet of the air-cooling device 42 contains hydrogen halide gas or the like together with carbon monoxide, hydrogen, and the like. These gases are removed by the dust removing device 46 and then introduced into the halogen recovery device 48. The halogen recovery device 48 cools the high-calorie gas to 100 ° C or lower after the nozzle 50 is sprayed with water, and condenses the hydrogen halide gas to form a mixed liquid of the condensed water 51 and the acid 5 such as hydrochloric acid, and separates the other energy gas 5 3 . With halogen. The mixture of acid 52 and condensate 51 is circulated through a nozzle 54 in a halogen return -26 - 1289644 (23) receiving unit 48 to concentrate the recovered acid 52. The mixture of the acid 52 and the condensed water does not use the nozzle 54, but may be circulated by mixing the water 49 from the nozzle 50. The recovered acid 52 is converted to a halogen 56 by a denaturing device 55. Further, the dust 47 separated from the gas by the dust removing device 46 and the air cooling device 42 and the refilled waste 3 are simultaneously introduced into the gasification furnace 1. Here, the period in which the gas cooled by the air-cooling device 42 flows into the halogen recovery to 48 is 100 ° C or higher, preferably 120 ° C or higher, from the viewpoint of preventing corrosion of the hydrogen halide gas. In particular, after the low-temperature dust removing device 46 is formed, an acid-resistant material such as a nickel-hydrochloride-resistant alloy can be effectively used. Further, the material used in the halogen recovery device 48 may be, for example, FRP or the like which is less likely to cause acid corrosion under TC. Further, the acid recovery method may be recovered by the air cooling device 42 as shown in Fig. 5, for example. The fifth method is a high temperature of 1 〇〇〇 ° C or more and 140 ° ° C or less generated by the gasification furnace 1 , and the high-heat gas 40 is quenched to 100 ° C or less by the air cooling device 42 to recover the energy gas. A method in which a halogen is contained in 40. In this embodiment, the moisture contained in the gas 40 and the spray sprayed from the air-cooling device 42 are condensed inside the air-cooling device 42, and are collected from the lower portion of the air-cooling device 42. The recovered condensed water Although the acid and the sludge 59 are contained in the 58, the recovered condensed water 58 is separated and removed by the filtering device 60 to form the acid-containing condensed water 6 2, and is converted into a halogen 56 by the halogenating device 5 5 . Although the temperature of the outlet gas of the cooling device 42 is below 100 ° C, the halogen has almost been converted into the condensed water 58 ' recovered under the air cooling device 42 and thus does not corrode the device in the latter stage of the air cooling device 42. However, by containing - 27- (24) 1289644 Several halogenations The gas, the water supply separation column 6 containing caustic 715, the recovered acid 66' and the acid 61 recovered in the lower portion of the air cooling device 42 are simultaneously halogenated by the halogenation device 55. The sludge 59 can be reintroduced into the gasification furnace 1 gas. In addition, the halogen concentration in the waste is wide, but the sampling side with a high halogen concentration forms a high recovery acid concentration. In addition, the halogen recovery amount per unit waste treatment amount is increased, and the recovery rate is high. Therefore, when the waste having a low halogen concentration is treated, the waste having a high halogen concentration can be effectively concentrated to concentrate the recovered acid. When the concentration of the halogen contained in the waste is low, the slaked lime is sprayed into the dust removing device 46 to remove _ When the dust removing device 46 is used to immobilize the halogen, it is not necessary to wash the halogen-based halogen recovery device 55, that is, it is not necessary to perform the process of discharging the water. Next, the system descriptions shown in Figs. 6 and 7 In the following description, only the differences from the system shown in Fig. 4 will be described, and the description of the common portions will be omitted. In Fig. 6, the air cooling unit 42 will be used. The gas of the dust 45 is removed from the halogen contained in the crucible device 46, and is introduced into the halogen recovery unit 48 to be the same as the system shown in Fig. 4. In this example, the halogen cooling device 48 sprays water 49 from the nozzle 50. The high-calorie gas 40 is cooled to 100 ° C or lower, and the hydrogen halide-containing gas is condensed as a mixture of the condensed water 51 and the acid 52, and the other energy gas 53 and the halogen are separated. The mixture of the acid 52 and the condensed water 51 passes through the nozzle. 43 is circulated in the air cooling unit 42 and concentrated to a concentration of acid -28-(25) 1289644 5 2 recovered by the halogen recovery unit 48. The recovered acid 52 is converted into a halogen 56 by a halogenating unit 55. The mixture of the acid 52 and the condensed water 51 is circulated in the air cooling unit 42, and the amount of the water 44 used in the air cooling unit 42 can be reduced. Further, the powders 47 and 57 which are separated from the gas by the removing device 46 and the air cooling device 42 are simultaneously charged into the gasification furnace 1 together with the waste 3. In the present embodiment, the period during which the energy gas cooled by the air-cooling device 42 flows into the halogen φ recovery device 48 is 100 ° C or higher, preferably 120 ° C or higher, from the viewpoint of preventing corrosion of the hydrogen halide gas. In particular, after the low-temperature dust removing device 46 is formed, an acid-resistant material such as a nickel-hydrochloride-resistant alloy can be effectively used. Further, the material used in the halogen recovery device 48 can be, for example, FRP or the like which is less likely to cause acid corrosion at 100 ° C or lower. Further, Fig. 7 is an example in which a gas cooling method is employed as an acid recovery method. In the following description, the differences from the system shown in Fig. 6 will be described, and the description of the common portions will be omitted. In Fig. 7, the gas of the dust 45 passing through the outlet of the air-cooling device 42 is the same as the system shown in Fig. 6 except that the dust 47 contained in the dust removing device 46 is introduced into the halogen recovery device 48. In this example, the halogen recovery device 48 cools the high-calorie gas 40 to 100 ° C or lower by a gas cooling method, and condenses the contained hydrogen halide gas to form a mixed liquid of the condensed water 5 1 and the acid 5 2, and separates the other. Energy gas 53 with halogen. Acid 52 is converted to halogen 56 by halogenation unit 5. Then, the dusts 47 and 57 separated and removed by the dust removing device 46 and the air cooling device 42 are simultaneously supplied to the gasification furnace 1 at the same time as the newly charged waste 3. -29 - (26) 1289644 In this example, the energy gas cooled by the air-cooling device 42 flows into the halogen recovery unit 48, and the hydrogen halide gas is 100 ° C or more from the viewpoint of preventing uranium gas. Good is above 120 °C. In particular, after the low-temperature dust removing device 46 is formed, an acid-resistant material such as a nickel-hydrochloride-resistant alloy can be effectively used. Next, a description will be given of a state in which hazardous waste such as medical waste, contaminated soil, or PCB is treated by the gasification furnace 1 of the present embodiment. The hazardous waste sealed in the sealed container can be used in the gasification furnace 1 shown in Fig. 1 . Harmless treatment. The charging of the furnace body 1a can be carried out from the double gate valve type loading device 29. The loading device 29 on the double gate valve freely drops the hermetic container between the upper gate valve 29a and the lower gate valve 29b by opening the upper gate valve 29a, and then closes the upper gate valve 29a and then opens the lower gate valve 29b to load the sealed container into the furnace. Thereby, the closed state of one of the upper gate valve 29a or the lower gate valve 29b can be constantly maintained, so that a large amount of furnace gas can be prevented from leaking out of the furnace through the charging device, or a large amount of outside air can be sucked into the furnace. Further, it is preferable that the pressure in the furnace is suppressed to be lower than atmospheric pressure by providing an air blower or the like downstream. Thereby, the harmful pyrolysis gas generated by the hazardous waste enclosed in the sealed container and filled into the furnace is not discharged from the sealed container, and the harmful waste can be reached to the upper end surface of the sputum layer. After the harmful waste reaches the upper end surface of the filling layer, the thermally decomposed thermal decomposition gas can be discharged from the sealed container by heat in the closed container opening. The harmful gas discharged from the closed container is completely decomposed in the furnace under high temperature conditions due to sufficient residence time, and is discharged outside the furnace. -30- (27) 1289644 The material and thickness of the sealed container are appropriately determined so that no holes are formed between the sealed container and the upper end surface of the squeezing layer. Further, in the present embodiment, the means for releasing the pressure rise inside the refining chamber will be described as follows. Fig. 8 is an explanatory view showing, in a simplified manner, a gasification furnace 1-1 in which the vaporizing chamber 73 is disposed in the gasification furnace 1 shown in Fig. 1. Further, the description of the subsequent gasification furnace 1-1 will be described only with respect to portions different from the gasification furnace 1, and the description of the common portions will be omitted. As shown in Fig. 8, the gasification furnace 1-1 is provided with a refining chamber 73 that communicates with the inside of the lower portion of the furnace body la. The pulverization chamber 73 is used for recovering the amount of ash discharged from the gasification furnace 1-1 and the valuable metal, and temporarily storing the generated slag and molten metal such as molten metal. The combustion-supporting gas 81a and the fuel 81b are injected from the slurry chamber tuyere 81 to maintain the temperature in the refining chamber. In this example, a gas discharge line 74 is provided in the upper portion of the melt chamber 73, and is connected between the upper end surface 76 of the waste inside the furnace body 1a and the gas discharge port 5. The valve 75 is disposed therebetween, and is normally operated while the valve 75 is closed. The internal pressure of the melting chamber 73 can be continuously measured by the pressure measuring device 77. In the normal operation, the crucible of the pressure measuring device 77 is set to operate at 0.5 times or less of the design pressure of the refining chamber 73. However, once the crucible exceeds 0.5 times the design pressure, the valve 75 can be opened from the gas discharge port 5 to be melted. The gas generated inside the slurry chamber 73 is discharged to the outside of the furnace body la. Thereby, the vaporization is temporarily stopped. When the furnace 1 rises, the waste in the furnace or the cooling slag, etc., blocks the connection portion 78 - 31 - (28) 1289644 of the furnace body la and the melt chamber 73, thereby preventing the melt from being melted. The internal pressure of chamber 78 rises excessively. As described above, the present embodiment can solve the problems of the basic gasification furnace, (a) clogging of the piping 6, (b) charging time in the furnace, (discharging of unused carbon, and (d) hazardous waste. Control of the position of the end face, (e) regeneration of the raw material of the halogen type, (f) loading of the hazardous waste, and (g) the increase of the pressure inside the melt 73 to obtain the high performance of the basic gasification furnace. According to the present embodiment, the gasification and melting operation is continuously carried out on a commercial scale for a long period of time, and a treatment method and a treatment apparatus for waste having high practicality are provided. EXAMPLES Further, the present invention will be specifically described below with reference to examples. In the description, the unit of the injection amount (Nm3/hr) is m3 (standard state) / hr. The gasification melting furnace 1 shown in Fig. 1 is used to carry out the gasification melting test of the waste. The number and arrangement of other mounting components of the size, upper tuyere 10, and lower tuyere 11 are as follows. In addition, the discharge port of molten slag and/or molten metal is abbreviated as a melt discharge port. Size furnace diameter: 2.0 m (however, the inner liner is resistant The inner diameter after the fire object 2) The height of the furnace: 6.0 m (however, the inner diameter of the lining after the refractory 2 is from the bottom of the furnace to the height of the furnace top) from the upper end of the melt discharge port 78 to the lower end of the waste charging inlet 4 Height: 2.8m • 32 - (29) 1289644 The degree from the upper end of the melt discharge port 78 to the lower end of the lower tuyere 11 of the lower section: 〇· 8 m from the upper end of the fume discharge port 7 8 to the lower end of the upper section Height from the lower end of n: 1.6 m Height from the upper end of the melt discharge port 7 8 to the upper tuyere i 1 of the lower stage: 3.9 m The height from the upper end of the melt discharge port 78 to the upper tuyere 11 of the upper stage: 4.7 m (2) Quantity lower tuyere 11: 3 in the circumferential direction, 1 in the furnace height direction, 1 in the circumferential direction, 3 in the furnace direction, 2 in the furnace direction, 3 in the circumferential direction, and 1 in the furnace direction Block 9: 1 melt discharge port: 1 position measuring device for measuring the position of the upper end face of the waste. ··1 (3) Configuring the lower air vent 1 1 : 120 degrees at equal intervals in the circumferential direction, lining from the front end The surface of the refractory material 2 is protruded to the inside of the furnace by 100 mm to set the upper tuyere 10: circumferential direction Each of the 120 degrees is equally spaced, and the furnace center block 9 is disposed offset from the furnace axis by 45 degrees: disposed at the furnace center (on the furnace shaft). The melt discharge port 78 is disposed at the bottom end position measuring device 79: the furnace center block 9 and The waste 3 used in the test between the side walls is chopper dust and high-concentration chlorine-containing plastic (30) 1289644, and its composition is shown in Tables 1 to 3. That is, Table 1 shows waste 3 and auxiliary materials. Industrial analysis 质量 (% by mass), Table 2 shows the composition (% by mass) of the combustible amount in the waste 3 and the auxiliary raw materials, and Table 3 shows the composition (% by mass) of the non-combustible amount of the metal in the waste 3 and the auxiliary raw material. .

-34- (31) 1289644 Table 1 Flammability (%) () Fixed carbon non-combustible amount (%) Moisture (%) Dry waste 8 1.2 (19.0) 9.8 9.0 Chopper dust 5 1.0 (5.4) 36.8 12.2 Plastic Chips*1 96.5 (11.9) 3.3 0.2 Waste wood 79.1 (40.0) 0.9 20.0 Limestone 0.0 98.3 1.7

*1: High-concentration chlorine-containing plastics for plastic chips Table 2 C Η 0 Ν S T.C1 Moisture-drying garbage 40. .0 6. ,3 33.2 0_ 9 0.1 0.7 9.0 Chopper dust 40 .3 5_ .1 2.1 1 , 7 0.5 1.3 12.2 Plastic shavings*1 37, .6 4. ,7 6.2 0. ,1 0.1 47.8 0.2 Waste wood 40 .0 4. .8 34.2 0. .1 20.0 Limestone 0. 0 0· ,0 0.0 0. , 0 0.0 1.7

*1: High-concentration chlorine-containing plastic for plastic chips •35- (32) 1289644 袠3

Si〇2 CaO Al2〇3 Fe2〇3 N a 2 Ο K〇0 CaCO^ Dry garbage 2.7 1.8 1.2 0.25 0.5 〇. 3 〇.〇Chopper dust 9.6 8.3 1.6 1.8 1.2 0 7 〇0 Plastic chips*1 0.4 0.9 0.1 一— 0.1 \J · L· 〇1 〇0 Waste wood 0.02 0.35 0.03 0.03 0.08 \J · 1 0 08 0.0 Limestone 0.5 0.0 〇.0 0.5 〇.〇i V/ · V/ 0.0 97.3 1 : Plastic shavings Use high concentration of chlorine-containing plastic g

(Setting procedure of processing conditions) The carbon material 32 was placed in the furnace from the loading set 28 and piled up to a height of 1.5 m. The fire is put into the upper end surface of the grave filling layer of the carbon material 32, and the charcoal material 32 in the furnace is deposited by the combustion-supporting hot body 9a from the furnace center block 9. The lower tuyere 11 and the upper tuyere 1 inflow oxygen.瘫 The air supply amount of the combustion-supporting gas and the amount of the carbon material 32 are adjusted so that the temperature in the furnace is raised to a predetermined temperature. The introduction of the waste 3 is started, and the charging of the carbon material 32 is stopped. It is lowered to the position where the upper end surface of the waste 3 is loaded with the combustion of the waste 3, so that the waste 3 is sequentially loaded so that the position is maintained at i.5 m. Adjusting the amount of oxygen injected from the furnace center block 9, the upper tuyere 10 and the lower tuyere 1 1 so that the temperature measured by the thermocouple near the upper end surface of the charged waste 3 is often maintained above 600 ° C, and the freeboard space The temperature measured by the thermocouple is often maintained below 1000 ° C and below i4 ° ° c. -36 - 1289644 (33) That is, the waste descending speed is increased, and the amount of the predetermined waste 3 is such that the position of the upper end surface of the loaded waste 3 cannot be maintained at a predetermined position, and the furnace is reduced according to the lower tuyere 1 1 and the occasion. The amount of oxygen injected into the center block 9. When the temperature near the upper end surface of the waste 3 is less than 600 °C, the amount of oxygen injected from the furnace center block 9 is increased. Also, when the temperature of the freeboard space is less than 1000 art, the amount of oxygen injected from the upper tuyere is increased. Conversely, when the temperature of the freeboard space exceeds 1400 °C, the amount of oxygen injected from the center block 9 of the furnace is reduced according to the upper tuyere 10 and the occasion. The temperature of the slag and the molten metal discharged from the melt discharge port 7 is measured, and is lower than a predetermined temperature (at least a temperature at which one of the slag and the molten metal is not hardened, and in this embodiment, 1400 ° C or more and 1 600 When the temperature is below °C, the supply amount of the combustion-supporting gas 1 1 a from the lower tuyeres 1 is increased. Further, the components of the molten slag and the molten metal are analyzed, and the amount of the input limestone is adjusted to form a predetermined slag basicity. The operations of (f) to (h) above are repeated. Hereinafter, (i) clogging of the line 6 of the present embodiment, (ii) furnace charging time, (iii) reduction of unused carbon, (iv) control of the upper end position of the waste, and (v) halogen The test results of the raw material regeneration are listed below. (Injection of the refrigerant 12 for exhaust gas is an effect of obtaining the plugging device 16 and the clogging preventing device in the pipe 6, and adding 20 kg/hr of low-boiling substances such as lead and zinc to the chopper dust. Tests are carried out under conditions that tend to block the line 6. The elements of the operation and the test results are summarized in Table 4. -37- (34) 1289644 (34)

Table 4 Comparative Example 1 Inventive Example 1 Inventive Example 2 Charge pulverized dust 400 400 400 (kg/hr) Lead 20 20 20 Zinc 20 20 20 Furnace pressure, change in the inlet-outlet differential pressure of the tube 6 Figure 9 Fig. 10 (no clogging) Fig. 11 (no clogging) Cold spray (kg/hr) at the outlet of the furnace 0 0 40 Medium 12 N2 Gas (Nm3/hr) 0 90 0 Air supply oxygen furnace center block 9 80 80 80 (Nm3/hr) Upper tuyere 10 80 80 80 Lower tuyere 11 60 60 60 Remove the upper temperature of the N2 (Nm3/h) 40 40 40 furnace from the LPG (Nm3/h) 8 8 8 furnace in the lower tuyere 11 (. C, measuring device 80) 1150 1150 1150 Pipeline inlet temperature (°C, measuring device 81) 1100 950 950 Discharge (wet-Nm3/hr) 1 643 733 691 CO 32.5 28.5 30.3 C〇2 14.9 13.1 13.9 h2 21.9 19.2 20.4 Exhaust (%) h2o 23.4 20.5 28.6 n2 6.2 17.7 5.8 h2s 0.1 0.1 0.1 HC1 1.0 0.9 0.9 Pipe ό outlet gas heat (kcal/dry-Nm3) 2019 1706 2019 -38 - (35) 1289644 (Comparative example 1) Comparative Example 1 is an example in which the refrigerant 12 is injected from the refrigerant injection nozzle 13 as shown in Fig. 1. The temperature at which the energy gas is generated is in the upper part of the furnace. The temperature measuring device 80 is 1 150 ° C, and the inlet temperature measuring device 81 of the line 6 is about 1100 ° C. The differential pressure measurement result of the inlet and outlet portions of the line 6 is shown in a graph in FIG. 9 . Further, in each of the drawings (Fig. 9 to Fig. 14) of the ninth and subsequent figures, the vertical axis P indicates the pressure (mmH20), the vertical axis d indicates the number of days of operation (day), and the symbol 〇 indicates the pipe 6 The differential pressure between the entry side and the exit side, the Δ mark indicates the furnace pressure. As shown in Fig. 9, this differential pressure is increased from the 20th day after the start of the operation. The differential pressure of the line 6 is 300mmH20. When the inside of the pipe 6 is observed, the inside of the pipe 6 is observed. (Example 1 of the present invention) In the first example of the present invention, the nitrogen gas as the refrigerant 12 is injected from the refrigerant jet nozzle 13 . The generated energy gas is cooled before flowing into the line 6. The temperature of the energy gas is 1150 ° C in the temperature measuring device 80, and the temperature measuring device 81 at the inlet of the line 6 is about 95 CTC. Further, the temperature of the energy gas immediately before the air-cooling device flowing into the rear stage is about 850 °C. The heat of the recovered energy gas was reduced by a small amount compared with Comparative Example 1 by the injection of nitrogen gas. Fig. 10 is a graph showing the measurement results of the differential pressure of the inlet portion and the outlet portion of the pipe 6 - 39 - (36) 1289644. As shown in Fig. 1, the differential pressure between the inlet portion and the outlet portion of the line 6 is not increased. Further, after the operation was stopped, the inside of the pipe 6 was observed, and no deposit was observed. (Inventive Example 2) The second embodiment of the present invention is an example in which mist-like water (spray) having a particle diameter of 200 // m or less is sprayed from the refrigerant jet nozzle 13 shown in Fig. 1 . The temperature of the energy gas was 1150 °C in the temperature measuring device 80, and the temperature measuring device 81 at the inlet of the pipe 9 was 950 °C. Further, the temperature of the energy gas immediately before the air-cooling device flowing into the rear stage is about 850 °C. Fig. 11 is a graph showing the measurement results of the differential pressure between the inlet portion and the outlet portion of the line 6. As shown in Fig. 1, the differential pressure between the inlet portion and the outlet portion of the conduit 6 was not increased during the operation, and even after the operation was stopped, the deposit was not observed even when the inside of the conduit 6 was observed. Further, the heat of the recovered energy gas was the same as that of Comparative Example 1, and the refrigerant 12 showed the preference of Inventive Example 1 in which the inert gas was injected. Further, the amount of spray used in the air-cooling device in the latter stage is reduced by substantially the same amount as the amount of spray injected into the nozzle 13. (2) Mechanical removal of the plugged material Comparative Example 2 and Examples 3 to 4 of the present invention are effects of explaining the plugging device 16 according to the present invention, and the elements of the operation and the test results are shown in Table 5. -40- (37) 1289644 Table 5 Comparative Example 2 Inventive Example 3 Inventive Example 4 Fume powder dust 400 400 400 (kg/hr) Wrong 20 20 20 Zinc 20 20 20 Furnace pressure, tube 6 way - Travel pressure chart 12 Figure 13 Figure 14 Operating conditions of the drive shaft 19-U9-2 In-furnace pressure g 50mm Line in-outside differential pressure 2 Every 5 hours, operate at 50° with h2o, operate with H20, and periodically operate the air supply oxygen furnace center block 9 80 80 80 (Nm3/hr) Upper tuyere 10 80 80 80 Lower tuyere 11 60 60 60 Remove N2 (Nm3/h) 40 40 40 furnace gas output from the LPG (Nm3/h) 8 8 8 furnace in the lower tuyere 11 (wet -Nm3/hr) 643 643 643 CO 32.5 32.5 32.5 C〇2 14.9 14.9 14.9 h2 21.9 21.9 21.9 Gas composition (%) h2o 23.4 23.4 23.4 n2 6.2 6.2 6.2 h2s 0.1 0.1 0.1 HC1 1.0 1.0 1.0 Running time approx. 1 hour approx. 3 In about 3 minutes, the drive shaft 19-1 is driven, and even if it is performed 300 times or more, even if it is performed 300 times or more, the operation of the 19-2 durability drive shaft deformation will not be deformed, and the operation will not be deformed. The operation of making a leak from 300 times or more from the sealing There is no problem of operation is not a problem

-41 - (38) 1289644 (Comparative Example 2) In Comparative Example 2, the degree of clogging was predicted from the pressure in the furnace, regardless of the enthalpy of the differential pressure predicting device 丨8 in Fig. 2 . Further, the drive shafts 19-1 and 19-2 are moved up and down to remove the blockage. The measurement result of the differential pressure between the inlet portion and the outlet portion of the line 6 is shown in Fig. 12 as a graph. At point A of the graph of Fig. 12, the drive shafts 19-1 and 19-2 are moved up and down to remove the blockage. As shown in Fig. 12, the differential pressure between the inlet and the outlet of the line 6 does not increase the pressure in the furnace even if the force is increased by more than 100 mmH2 Torr with respect to the substrate (0 mmH2O). That is, the change in the pressure in the furnace is compared with this differential pressure, and it is known that the reaction with respect to the clogging of the line 6 is sluggish. The reason why the pressure in the furnace is remarkably increased is that the enthalpy of the differential pressure measuring device 18 is increased by 300 mmH20 or more with respect to the substrate (0 mmH2O). At this time, although the drive shafts 19-1, 19-2 are operated, it takes about one hour to remove the clogging. Further, as a result of continuing the long-term work, the leak of the gas in the furnace can be confirmed from the airtight portion 22 of the differential pressure measuring device 18. • In order to increase the life of the clogging device 16, it is important to operate the drive shafts 19-1 and 19-2 when the clogging of the conduit 6 is light. Therefore, instead of observing the pressure in the furnace, it is better to continuously observe that the differential pressure between the inlet and the outlet of the line 6 relative to the blockage inside the line 6 can be effectively obtained as quickly as possible. (Example 3 of the invention) In the third example of the present invention, the drive shafts 19-1 and 19-2 shown in Fig. 1289644 (39) are moved up and down according to the enthalpy of the differential pressure measuring device 18 to remove the clogging. The measurement result of the differential pressure between the inlet portion and the outlet portion of the conduit 6 is shown in Fig. 13 as a graph. At point B of the 13th graph, the drive shafts 19-1 and 19-2 are moved up and down to remove the blockage. As shown in Fig. 1, the differential pressure measuring device 18 of the differential pressure measuring device 18 is operated by the differential pressure measuring device 18 which is operated for about 3 minutes when the driving shafts 19-1 and 19-2 are operated by 50 mm H2O or more with respect to the base (0 mmH2O).値Recover the substrate 値 (0mmH2O) and then operate stably. In this operation, even if the operation is performed 300 times or more, the deformation of the drive shafts 19-1 and 19-2 is not formed, and the gas in the furnace from the airtight portion 22 leaks. That is, the differential pressure of the line 6 is observed, and the differential pressure measuring device 18 is effectively operated to detect the sign of the blockage of the line 6 as quickly as possible. (Inventive Example 4) In the fourth example of the present invention, the drive shafts 19-1 and 19-2 shown in Fig. 1 are periodically raised and lowered once every eight hours regardless of the differential pressure measuring device 18 and the internal pressure of the furnace. . Fig. 14 is a graph showing the results of measurement of the differential pressure between the inlet portion and the outlet portion of the line 6. As shown in Fig. 14, the pressure of the differential pressure measuring device 18 does not form 10 mmH2O or more, and even if the operation is continuously performed for one turn, the pipe 6 is not clogged, and the deformation of the drive shafts 19-1, 19-2 does not occur. And the gas leaking from the airtight portion 22. (ii) Furnace filling time -43- (40) 1289644 The comparative example 3 shown in Table 6 and the example 5 of the present invention are all descriptions for heating the furnace using a carbon material. Table 6 Comparative Example 3 Inventive Example 5 Use of fuel LPG coke Charge completion + temperature rise completion time 96 hours 48 hours With octane discharge at temperature rise <0.01 ng-TEQ/Nm3 <0.01 ng-TEQ/Nm3

(Comparative Example 3) The temperature rise of Comparative Example 3 in which the temperature of the furnace was raised by the combustion of the burner was 48 hours. Subsequently, although the loading of the waste 3 was started, it took more than 48 hours to raise the height of the upper end surface of the load to 1.5 m of the target enthalpy (control enthalpy). That is, the adjustment completion time (in-furnace charging time) of the height level after the start of the temperature rise to the upper end surface of the load is required to be 96 hours (Inventive Example 5) In the fifth example of the present invention, the stage before the temperature rise is loaded. In the carbon material, the height level of the upper end surface of the load during the heating is measured, and the amount of the carbon material is adjusted in order. Therefore, the height level of the upper end surface of the load at the completion of the temperature rise reaches the target level (control level). Therefore, the time required to form -44-(41) 1289644 for the start of waste charging is 48 hours, and half of Comparative Example 3 can be reduced. Further, as a result of using a halogen concentration of 0.1% or less as a carbon material, it is possible to suppress the discharge amount of the oxin-like substance in the middle of the temperature rise to an extremely low level. (iii) Reduction of Unutilized Carbon Table 7 shows the test results of Comparative Example 4 and Inventive Example 6.

-45- (42) 1289644 Table 7 Comparative Example 4 Inventive Example 6 Chopper dust (kg/hr) 400 400 Air supply oxygen furnace center block 9 80 80 (Nm3/hr) Upper tuyere 10 75 84 Lower tuyere 11 60 60 Vapor injection (kg/hr) 0 18 Remove N2 (Nm3/h) from the LPG (Nm3/h) 8 8 furnace of the lower tuyere 11 40 40 top gas volume (wet-Nm3/hr) 643 688 top gas Temperature (.〇1150 1150 CO 33.3 33.4 C〇2 14· 1 14.2 h2 22.8 22.9 Gas (%) h2o 22.5 22.7 n2 6.2 5.8 h2s 0.1 0.1 HC1 1.0 0.9 Metal solid (kg/hr) 3.2 3.2 Temperature (°c) 1480 1480 Sludge solids (kg/hr) 142 142 Temperature (.C) 1480 1480 Unutilized C (kg-C/h〇15 3 gas heat generation (kcal/dry-Nm3) 2058 2070 (43) 1289644 ( Comparative Example 4) Comparative Example 4 is a test result when 18 kg/hr of steam was injected from the steam injection nozzle 33 in Fig. 1. The amount of unused carbon was reduced to 3 kg-C/hr, and the amount of unused carbon was decreased. , Increasing the amount of CO gas generated and converting steam into hydrogen, which can increase the calorific value of the generated gas by 3 units of waste. Moreover, the gas is heated per INm3 (dry air). The same result is obtained from 2058 kcal/Nm3 to 2070 kcal/Nm3. The same result can be obtained by simultaneously injecting steam from the furnace center block 9 or the upper tuyere 33 with the column flammable gas. (Inventive Example 6) Inventive Example 6 shows Fig. 1 shows the test results when the steam injection nozzle 33 is sprayed with 18 kg/hr of steam. The amount of unused carbon is reduced to 3 kg_c/hr. And, as the amount of unused carbon is reduced, the amount of CO gas generated is increased' and the vapor conversion is increased. For hydrogen, it can increase the heat generated by 3 units of waste gas. Moreover, the gas heat per INm3 (dry air) is also increased from 2058kcal/Nm3 to 2070kcal/Nm3. Also, from the furnace center block 9 or The upper tuyere 33 is sprayed with steam at the same time as the column flammable gas, and the same result can be obtained. (iv) Control of the upper end position of the waste Comparative Example 5 and Example 7 of the present invention indicate that the carbon material is put into the control level of the filling layer. The results are summarized in Table 8. -47- (44) 1289644 (44)

Table 8 Comparative Example 5 Inventive Example 7 Charge (kg/hr) Chopper dust 400 400 Waste wood 0 80 Air supply oxygen (Nm3/hr) Furnace center block 9 80 80 Upper tuyere 10 75 83 Lower tuyere 11 60 60 The number of oxygen operation times of the lower tuyere 11 (time/day) 20 2 The number of oxygen operation times of the upper tuyere 10 (time/day) 35 3 Remove N2 from the LPG (Nm3/h) 8 8 furnace of the lower tuyere 11 (Nm3/ h) 40 40 Waste upper level (mm) 1450~1550 1450~1550 Top gas quantity (wet-Nm3/hr) 643 766 Top gas temperature (.C) 1150 1150 Gas composition (%) CO 33.3 35.5 C 〇2 14.1 12.1 h2 22.8 25.8 h2o 22.5 20.5 n2 6.2 5.2 h2s 0.1 0.1 HC1 1.0 0.8 Metal solids (kg/hr) 3.1 3.2 Temperature (.C) 1470 1480 Slag solids (kg/hr) 142 145 Temperature (. C) 1470 1480 -48- (45) 1289644 (Comparative Example 5) In Comparative Example 5, the chopper dust was gasified and melted, and the fuel was not injected into the carbon material such as waste materials, but was sprayed from the lower tuyere 11 to 8 Nm 3 /hr. LPG. As shown in Table 1, the amount of carbon (fixed carbon) in the thermal decomposition residue contained in the chopper dust was 5.4%, which was less than that of the municipal waste after drying. In Comparative Example 5, the method of controlling the height level of the upper end surface of the waste 3 is the amount of the column flammable gas sent from the lower tuyere 1 1 . That is, when the height level of the upper end surface is lower than the target, the amount of the column flammable gas is lowered, and conversely, higher than the target enthalpy increases the amount of the column flammable gas. Further, as the combustion-supporting gas of the lower tuyeres 1 is lowered, the amount of the combustion-supporting gas from the lower tuyeres 1 is increased even when the amount of slag and molten metal discharged is lowered. As shown in Table 8, in Comparative Example 5, in order to maintain the level of the upper end surface of the waste 3 at 1450 mm to 1550 mm of the target crucible, the amount of combustion-supporting gas from the lower tuyere 11 and the combustion assist from the upper tuyere 10 must be frequently operated. The amount of the gas was such that the amount of the combustion-supporting gas from the lower tuyere 11 was 20 times/day, and the amount of the combustion-supporting gas from the upper tuyere 10 was 35 times/day. (Inventive Example 7) Inventive Example 7 is an example in which waste wood is used as a carbon material. The amount of combustion-supporting gas from the lower tuyere 1 1 and the upper tuyere 1 几乎 is hardly changed, and the position of the upper end of the waste 3 can be controlled within the target control range. In other words, when the waste material 3 having a small amount of carbon is targeted, the carbon material 8 and/or the carbon material 36 can be easily controlled by -49-(46) 1289644 at the upper end position of the waste 3. (v) Element regeneration of halogen Table 9 shows the elements and results of the halogen recovery test performed in accordance with the flow shown in Figs. 4 and 5. Among them, the recovery of chlorine as a representative substance of halogen is exemplified as follows.

-50· (47) 1289644 Table 9 Inventive Example 8 Inventive Example 9 Hydrochloric acid recovery method After dust removal (Fig. 4) After gas cooling (Fig. 5) Plastic chips (kg/h 〇 400 400 total amount of supplied air (N m3 / Hr) 191 191 From the lower tuyere 11 2LPG (Nm3 / h) 18 18 furnace to remove N2 (Nm3 / h) 60 60 top gas volume (wet-Nm3 / hr) 771 771 top gas temperature (. 〇 1150 1150 CO 42.2 42.2 C〇2 3.4 3.4 h2 25.6 25.6 Gas composition (%) h2o 5.3 5.3 n2 7.8 7.8 h2s 0.1 0.1 HC1 15.6 15.6 Metal. Solid (kg/hr) 0.1 0.1 Temperature (°c) 1460 1460 Solids ( Kg/hr) 13 13 Temperature (.C) 1460 1460 Chlorine (kg-Cl/hr) in the furnace 191 191 Chlorine recovery (kg-Cl/hr) 189 189

-51 - (48) 1289644 (Inventive Example 8) Inventive Example 8 was a chlorine recovery test according to the flow chart shown in Fig. 4. That is, the high-calorie gas 4〇 generated in the furnace of the gasification furnace 1 is cooled by the air cooling device 42, and the powder crucible 57 is placed in the lower portion of the air cooling device 42, and the powder crucible 47 is dedusted by the dust removing device 46, respectively, and hydrochloric acid recovery is performed. . The plastic chips used therein are plastic chips containing a high concentration of chlorine as shown in Table 2. As shown in Table 9, all of the chlorine introduced into the inside of the gasification furnace 1 was 191 kg-Cl/hr, but 189 kg-Cl/hr of chlorine was passed through the halogen recovery unit 48 and the halogenation unit 55, and recovered. Further, in the inside of the gasification furnace 1, the loaded plastic chips are thermally decomposed and vaporized at 1000 ° C or higher, and the generated gas is quenched to 170 ° C by the air cooling device 42 , and the dioxin contained in the exhaust gas 53 is contained. The concentration of the class is suppressed at an extremely low level. Further, the gas discharged from the air-cooling device 42 is maintained at 13 °C or higher while being introduced into the halogen recovery device 48. Further, the dust removing device 46 and the subsequent piping are made of a corrosion-resistant nickel-base alloy, and FRP is used as the material of the halogen recovery device 48. As a result, the uranium used in the equipment will not be presented. (Example 9 of the invention) Inventive Example 9 is a chlorine recovery test according to the flowchart shown in Fig. 5. That is, the high-energy gas 40 generated in the furnace is cooled to not more than 10 °C by the cooling device 42, and the hydrogen chloride-containing gas is condensed to recover hydrochloric acid. The chlorine introduced into the inside of the gasification furnace 1 as shown in Fig. 9 is i 9 1 kg-Cl/hr, but is recovered by hydrochloric acid in the lower portion of the air cooling device 42, and then converted into chlorine by the halogenation device 55 to recover 189 kg-Cl/ Chlorine of hr. Further, in the same manner as in Inventive Example No. 52-(49) 1289644, the plastic chips charged therein are thermally decomposed and vaporized in the inside of the gasification furnace 1 by 100 (TC or more, and the gas generated by the cooling device 42 is quenched to l. As a result of the 〇〇 ° C or lower, the concentration of the dioxin contained in the exhaust gas 70 is suppressed to a low level. (Industrial Applicability) According to the present invention, it is possible to provide a problem of solving the basic vaporization and melting, specifically (a) clogging of the pipeline, (b) charging time in the furnace, (c) discharge of unused carbon, (d) control of the position of the upper end surface of the waste, (e) regeneration of raw materials of halogens, (f) The charging of the hazardous waste, or (g) the internal pressure of the melting chamber is increased, whereby the basic gasification furnace can be further improved in performance. Therefore, according to the present invention, the commercial operation can be stably continued for a long period of time. In the gasification furnace operation of a large scale, it is a highly practical waste treatment method and treatment device. [Simplified description of the drawings] Fig. 1 is a schematic diagram for explaining the detailed description of the gasification furnace of the waste used in the embodiment. 2 is represented by a pattern in the implementation form In the gasification furnace of the present invention, an explanatory view of the attachment removing device of the processing device for removing the waste of the inner wall of the pipe by a mechanical method is shown in Fig. 3. Fig. 3 is an explanatory view showing a drive shaft in which the fiber mirror is provided at the tip end portion. Fig. 4 is a flow chart showing the system for recycling the halogen of the embodiment. Fig. 53-(50) 1289644 Fig. 5 is a flow chart showing the system for recovering the halogen of the embodiment. Fig. 6 is a view showing the system for recovering the halogen according to the embodiment. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 7 is a flow chart for explaining a system for recycling a halogen according to an embodiment. FIG. 8 is a schematic view showing a simplified portion of a gasification furnace in which a melting chamber is provided in a gasification furnace in a first embodiment. Fig. 9 is a graph showing the results of the differential pressure measurement at the inlet and outlet of the pipe. Fig. 10 is a graph showing the results of the differential pressure measurement at the inlet and outlet of the pipe. Fig. 1 shows the inlet of the pipe. A graph showing the results of the differential pressure measurement at the outlet portion. Fig. 1 is a graph showing the results of the differential pressure measurement at the inlet and outlet of the pipeline. Fig. 1 3 shows the differential pressure measurement at the inlet and outlet of the pipeline. Fig. 14 is a graph showing the results of the differential pressure measurement at the inlet and outlet of the pipeline. Component comparison table 1: gasification furnace 1: furnace body-54- (51) 1289644 2: lining refractory 3 : Waste 4 : Waste charging inlet 5 : Gas discharge port 6 : Pipe 6a : Inlet portion 6b : Outlet portion 7 : Push rod 8 : Charcoal material 9 · Furnace center, block 9a : Combustible gas 10 : Upper tuyere l 〇a : combustion-supporting gas 1 1 : lower tuyere 1 1 a : combustion-supporting gas lib : fuel 1 2 : refrigerant 13 , 14 : nozzle 15 : gas 1 6 : deposit removal device 17 : attachment 1 8 : differential pressure measurement Device 19-1, 19-2: Drive shaft 20: Lifting device - 55- (52) 1289644 21: Cooling water 22: Air leakage preventing device 23: Valve 24: Standby position 28: Loading device

29: Double gate valve 29a: Upper gate valve 29b: Lower gate valve 3 0 : Furnace monitoring window 3 2 : Charcoal material 3 3 : Nozzle 34 : Vapor 35 : Unutilized carbon 36 : Charcoal

3 8 : slag 39 : molten metal 40 : high heat gas 41 : line 42 : air cooling device 43 : nozzle 44 : spray 4 5 : line 46 : dust removal device 47 : line -56- (53) 1289644 48 : Halogen recovery unit 49: Water 50: Nozzle 5 1 : Condensate 52: Acid 53: Energy gas

54 : Nozzle 55 : Halogenation unit 56 : Halogen 5 8 : Condensate 5 9 : Sludge 60 : Filtration device 61 : Acid 62 : Condensate

65: Separation Tower 66: Acid 7 1 : Caustic soda 72: Water d: Outside diameter -57-

Claims (1)

1289644 Annex: Patent Application No. 92124500 Chinese patent application scope revision 'Revised by the Republic of China on March 6th, 1995. Patent application model 1-11. A waste disposal method, characterized in that waste is charged into a waste treatment furnace for the waste When at least one of the combustion, the heating, or the melting is processed, the exhaust gas generated by the at least one of the treatments is connected to the furnace body of the waste treatment furnace, and the exhaust gas is led to the inlet of the pipeline outside the furnace body. Cooling in the nearby furnace. 2. A method for treating waste, characterized in that: the waste is charged with: a furnace body; a gas discharge port disposed at an upper portion of the furnace body; and slag and/or molten metal disposed at a lower portion of the furnace body a discharge port; a waste charging port disposed between the slag and/or the discharge port of the molten metal and the gas discharge port; and the combustion chamber is sprayed downward into the furnace along the clock and the shaft in the upper portion of the furnace body a furnace center block; an upper tuyere in which one or more stages are disposed on the furnace wall between the waste charging inlet and the gas discharge port; and between the waste charging inlet and the slag and/or the molten metal discharge port When at least one of combustion, vaporization, or melting is performed in the waste treatment furnace including the tuyere having one or more stages of the furnace wall, the exhaust gas generated by the at least one of the treatments is connected The furnace body of the waste treatment furnace is cooled in a furnace near the inlet of the piping from which the exhaust gas is led out of the furnace body. 3. The method for treating waste according to the first or second aspect of the invention, wherein the exhaust gas is injected into at least one of water, a production gas, an inert gas or a vapor in the vicinity of an inlet of the pipeline. A constituent refrigerant is cooled. 4. A method of treating waste characterized by: 1289644 (2) The waste is charged with: a furnace body; a gas discharge port disposed at an upper portion of the furnace body; and a slag and/or a molten metal discharge port disposed at a lower portion of the furnace body: disposed in the row of the slag and/or molten metal a waste charging port between the outlet and the gas discharge port; and a furnace center block for discharging the combustion-supporting gas downward into the furnace along the furnace shaft in the upper portion of the furnace body; the waste charging inlet and the gas discharge port An upper air outlet of one or more stages is disposed between the furnace walls; and a waste treatment furnace comprising one or more air outlets between the waste inlet and the discharge port of the molten slag and/or the molten metal; When the waste is subjected to at least one of combustion, gasification or melting, the free reciprocating movement is configured to connect the exhaust gas generated by the at least one of the treatments to the pipeline outside the furnace body. The inside of at least one of the linear portions, the clogging condition inside the pipeline estimated by the differential pressure measurement result between the inlet portion and the outlet portion of the pipeline causes the inner surface of the pipeline to be scraped off At least one scraping member constituted by a conical shape is used. The method for treating waste according to the fourth aspect of the invention, wherein the measurement result of the differential pressure indicates that the at least one scraping member is operated when there is a tendency to increase as compared with the start of the operation. The method for treating waste according to the fourth aspect of the invention, wherein the at least one scraping member is continuously operated for a predetermined period of time in a range of from 1 hour to 24 hours. A method for treating wastes, comprising: a furnace body; a gas discharge port disposed at an upper portion of the furnace body; and a slag and/or a molten metal discharge port disposed at a lower portion of the furnace body; Melt-2-i 1289644 (3) a waste charging port between the discharge port of the slag and/or the molten metal and the gas discharge port; and a furnace center block for discharging the combustion-supporting gas downward into the furnace along the furnace shaft in the upper portion of the furnace body; One or more upper tuyères are disposed on the furnace wall between the object inlet and the gas discharge port; and a tuyere of one or more stages is disposed between the waste inlet and the discharge port of the slag and/or the molten metal. When the temperature of the waste treatment furnace is increased, the carbon material containing the total concentration of halogens is less than or equal to 9% by mass in the waste treatment furnace, and the upper end surface of the internal charge of the waste treatment furnace is adjusted from the temperature rise stage. High level. 8. The method for treating waste according to the seventh aspect of the invention, wherein the waste treatment furnace is preheated in the interior of the furnace body before heating First, a carbon material containing a total concentration of halogens of 0.1% by mass or less is charged, and the waste charging passage for charging the waste into the furnace has two valves arranged in parallel, and the internal side valve is closed while the external side valve is opened. In a state where the carbon material is supplied to the space between the outer side valve and the inner side valve, the outer side valve is closed, the inner side valve is opened, and the charging device is loaded from the charging material into the furnace. After the upper end surface of the carbon material, and then closing the valve on the outer side and/or the inner side, the combustion-supporting gas is fed from the center block of the furnace, and the combustion of the carbon material is started to start the waste treatment furnace. Warm up. A method for treating waste, characterized in that: the waste is charged with: a furnace body; a gas discharge port disposed at an upper portion of the furnace body; and a slag and/or a row of molten metal disposed at a lower portion of the furnace body An outlet; a waste charging port disposed between the slag and/or the discharge port of the molten metal and the gas discharge port; and -3- 1289644 n / (4) in the upper portion of the furnace body to provide combustion support a gas is sprayed downward into a furnace center block for furnace use; an upper tuyere of one or more stages is disposed on a furnace wall between the waste charging inlet and the gas discharge port; and the waste charging inlet and the slag and/or melting When the furnace wall of the metal discharge port is disposed in a waste treatment furnace composed of one or more air outlets, at least one of combustion, gasification, or melting of the waste is disposed in the center block of the furnace At least one of the upper tuyeres or one or more nozzles of the furnace wall between the waste charging inlet and the gas discharge port, the steam is directed toward the lower portion of the furnace body, toward the side wall Wherein at least one axis direction or the direction offset from a direction toward the side wall from the furnace into the axial direction of the jet. A method for treating wastes, comprising: charging a furnace body; a gas discharge port disposed at an upper portion of the furnace body; and slag and/or molten metal disposed at a lower portion of the furnace body a discharge port; a waste charging port disposed between the slag and/or the discharge port of the molten metal and the gas discharge port; and the combustion furnace gas is sprayed downward into the furnace along the furnace shaft in the upper portion of the furnace body a furnace center block; an upper tuyere having one or more stages disposed on the furnace wall between the waste charging inlet and the gas discharge port; and a furnace between the waste charging inlet and the slag and/or the molten metal discharge port When at least one of the waste is subjected to combustion, vaporization, or melting in the waste treatment furnace including the tuyeres having one or more air outlets, the at least one of the treatments described above is in an unused state. The carbon discharged from the waste treatment furnace is mixed with the waste and then refilled into the waste treatment furnace. 11. A method of treating waste characterized by: -4- 1289644 (5) The waste is installed in a furnace body; a gas discharge port disposed in an upper portion of the furnace body; a discharge port of molten slag and/or molten metal disposed in a lower portion of the furnace body; and a slag and/or a molten metal disposed in the slag and/or molten metal a waste charging port between the discharge port and the gas discharge port; and a furnace center block for discharging the combustion-supporting gas downward into the furnace along the furnace shaft in the upper portion of the furnace body; the waste charging inlet and the gas row The upper tuyere of one or more stages is disposed in the furnace wall between the outlets; and the waste treatment furnace comprising one or more air outlets between the waste inlet and the discharge port of the molten slag and/or the molten metal is disposed When the waste is subjected to at least one of combustion, gasification, or melting, the carbon material and the waste are mixed and compacted, and then charged into the waste treatment furnace. 1. The method of treating waste according to the above-mentioned aspect of the invention, wherein the carbon material has two valves arranged in parallel in a waste charging passage for charging waste into a furnace, and the external side valve is opened. At the same time, in the state where the internal side valve is closed, the carbon material is supplied to the space between the valve on the outer side and the inner side valve, and the valve on the outer side is closed, and the valve on the inner side is opened to convert the charcoal charged into the furnace. The material is loaded via a loading device. A method for treating waste, characterized in that: the waste is charged with: a furnace body; a gas discharge port disposed at an upper portion of the furnace body; and slag and/or molten metal disposed at a lower portion of the furnace body a discharge port; a waste charging port disposed between the slag and/or the discharge port of the molten metal and the gas discharge port; and the combustion furnace gas is sprayed downward into the furnace along the furnace shaft in the upper portion of the furnace body The center block of the furnace; the upper part of the furnace wall between the waste charging inlet and the gas discharge port is arranged in one or more sections - 5 - 1289644 ^ . 1 灭抓— (6) a tuyere; and a waste treatment furnace comprising a tuyere having one or more stages of a furnace wall between the waste inlet and the discharge port of the molten slag and/or the molten metal; the waste is burned, vaporized, or When at least one of the melts is processed, the two valves having the waste charging passages placed in the furnace in parallel are placed in parallel, and the external side valve is opened, and the carbon gas is supplied while the internal side valve is closed. The space between the valve on the outer side and the inner side valve closes the valve on the outer side and opens the valve on the inner side, so that the carbon material charged into the furnace is loaded into the carbon material via the loading device. 14. A method of treating waste characterized by: The waste is installed in a furnace body; a gas discharge port disposed in an upper portion of the furnace body; a discharge port of molten slag and/or molten metal disposed in a lower portion of the furnace body; and a slag and/or a molten metal disposed in the slag and/or molten metal a waste charging port between the discharge port and the gas discharge port; and a furnace center block for discharging the combustion-supporting gas downward into the furnace along the furnace shaft in the upper portion of the furnace body; the waste charging inlet and the gas row One or more upper tuyères are disposed in the furnace wall between the outlets; the tuyere between the waste inlet and the discharge port of the molten slag and/or the molten metal is disposed at one or more outlets; and the temporary storage is disposed in the above When the waste is subjected to at least one of combustion, vaporization, or melting in a waste treatment furnace composed of a slag generated by the bottom of the furnace body and a molten metal for molten metal, the fusion When the gas pressure inside the slurry chamber is 0.5 times or more of the design pressure of the melt chamber, the gas stored in the interior of the slurry chamber is discharged through the gas discharge port. 15. A waste treatment method characterized by: charging waste into a furnace body; gas disposed in the upper part of the furnace body -6-1289644 (7) March a discharge port; a discharge port for slag and/or molten metal disposed at a lower portion of the furnace body: a waste charging port disposed between the discharge D of the slag and/or the molten metal and the gas discharge port; The upper portion of the body is disposed along the furnace shaft to discharge the combustion-supporting gas downward into the furnace center block for the furnace, and the upper air outlet of the furnace wall between the waste charging inlet and the gas discharge port is disposed at one or more stages; and the waste At least one of burning, gasifying or melting the waste in a waste treatment furnace comprising a tuyere having one or more stages of a furnace wall between the inlet and the discharge port of the molten metal and/or the molten metal; At the time of the treatment, the exhaust gas outside the furnace body is taken out through a line connecting the gas discharge ports, and the hydrogenated gas contained in the exhaust gas after the dust removal is recovered as an acid by the acid recovery device, and the recovered acid is recovered. Converting to halogen, or discharging the exhaust gas outside the furnace body to a temperature below 1 〇〇 ° C via a line connecting the gas discharge ports, so that the hydrogen halide gas contained in the exhaust gas after cooling is dissolved in the condensation In the exhaust gas to the hydrogen halide contained as acid recovery, the recovery of the acid is converted to the halo. 1. The method of treating waste according to the above aspect of the invention, wherein the waste containing chlorine-containing waste material having a halogen concentration of 10% by mass or more is charged into the waste treatment furnace. 17. A waste treatment apparatus comprising: a furnace body; a gas discharge port disposed at an upper portion of the furnace body; a discharge port for slag and/or molten metal disposed at a lower portion of the furnace body; and the slag and / or a waste charging port between the discharge port of the molten metal and the gas discharge port; and a furnace center block for discharging the combustion-supporting gas downward into the furnace along the furnace shaft in the upper portion of the furnace body; Furnace wall arrangement between the inlet and the above gas discharge port (8) — · (8) — 1289644 an upper tuyere of one or more stages; a tuyere of one or more stages disposed between the waste inlet and the discharge port of the molten slag and/or the molten metal; and a temporary storage arrangement at the bottom of the furnace body a melting chamber for molten slag or molten metal, which is capable of performing at least one of combustion, vaporization, or melting of the waste, characterized in that: the gas pressure inside the inside of the molten chamber is formed to form When the pressure of the melt chamber design is 5 times or more, the gas stored in the inside of the inside of the refining chamber is exhausted through the gas discharge port. - a waste treatment apparatus comprising: a furnace body; a gas discharge port disposed in an upper portion of the furnace body; a discharge port of molten slag and/or molten metal disposed in a lower portion of the furnace body; and being disposed in the slag And/or a waste charging port between the discharge port of the molten metal and the gas discharge port; and a furnace center block for discharging the combustion-supporting gas downward into the furnace along the furnace shaft in the upper portion of the furnace body; An upper tuyeres of one or more stages are disposed on the furnace wall between the inlet and the gas discharge port; and a tuyere of one or more stages is disposed between the waste inlet and the discharge port of the slag and/or the molten metal, And performing at least one of burning, gasifying or melting of the waste, characterized in that: further comprising connecting the furnace body, and exhausting the exhaust gas generated by the treatment of at least one of the foregoing to the furnace body. The piping and the refrigerant composed of at least one of water, production gas, inert gas, and steam are injected into the furnace supply unit near the inlet of the pipeline. A waste treatment apparatus comprising a furnace body capable of performing at least one of combustion, gasification or melting of the waste material, characterized by -8-1289644 (9) Further, the refrigerant is connected to the furnace body, and the exhaust gas generated by the treatment of at least one of the gases is led to the outside of the furnace body, and the refrigerant is composed of at least one of water, production gas, inert gas or steam. The supply portion is disposed in the furnace near the inlet of the line. 20. A waste treatment apparatus comprising: a furnace body; a gas discharge port disposed at an upper portion of the furnace body; a discharge port for slag and/or molten metal disposed at a lower portion of the furnace body; and the slag and / or a waste charging port between the discharge port of the molten metal and the gas discharge port; and a furnace center block for discharging the combustion-supporting gas downward into the furnace along the furnace shaft in the upper portion of the furnace body; An upper tuyeres of one or more stages are disposed on the furnace wall between the inlet and the gas discharge port; and a tuyere of one or more stages is disposed between the waste inlet and the discharge port of the slag and/or the molten metal. At least one of processing for burning, vaporizing, or melting the waste, further comprising: a differential pressure measuring device for measuring a differential pressure between the inlet portion and the outlet portion of the conduit; Arranging the inside of at least one linear portion of the conduit outside the furnace body by connecting the gas generated by the at least one of the processes to the furnace body, and measuring the knot according to the differential pressure measuring device A scraping member that scrapes at least one of the conical shapes for the attachment of the inner surface of the pipe. 21. A waste treatment apparatus comprising: a furnace body; a gas discharge port disposed at an upper portion of the furnace body; a discharge port for slag and/or molten metal disposed at a lower portion of the furnace body; and the slag and / or the discharge of molten metal - 9 - 1289644 (10) A waste charging port between the port and the gas discharge port; a furnace center block for injecting a combustion-supporting gas downward into the furnace along the furnace shaft in the upper portion of the furnace body; One or more upper tuyères are disposed in the furnace wall between the gas discharge ports; and the tuyere between the waste charging inlet and the discharge port of the molten slag and/or the molten metal is disposed at one or more air outlets, and the air outlet can be disposed. At least one of the treatment of waste combustion, gasification or melting, characterized by: Further, at least one of one or more nozzles provided in the furnace center block, the upper tuyere, or the furnace wall between the waste charging inlet and the gas discharge port is provided in a direction toward the lower portion of the furnace body, A vapor supply system that injects steam from at least one of the side walls toward the furnace axis direction or from the side wall toward the furnace axis direction. -10- 1289644 柒, designated representative map: (1), the designated representative figure of this case is: _j_ diagram (2), the representative symbol of the representative figure is a simple description: 1: gasification furnace, la: furnace body, 2: lining refractory, 3: waste, 4: waste loading, 5: gas discharge, 6: piping, 7: putter, 8: charcoal, 9: furnace center block, 9a: combustion support Gas, 10: upper tuyere, l〇a: combustion-supporting gas, η: lower tuyere, 1 la: combustion-supporting gas, 1 lb: fuel, 12: refrigerant, 13: nozzle, 14: nozzle, 15 · gas, 28 : Loading device, 29: Double gate valve, 29a: Upper gate valve, 29b: Lower gate valve, 30: In-furnace monitoring window, 32: Charcoal material, 3 3: Nozzle, 34: Vapor, 35·. Unutilized carbon, 36· ·Charcoal material, 78: Connection part, 79: Position measuring device, 8〇: Temperature measuring device, 81: Temperature measuring temperature 掏, J If there is a chemical formula, please disclose the chemistry that best shows the characteristics of the invention. -4 -