Chlorine-containing-waste treatment device and method for dechlorinating chlorine-containing waste

Abstract

To provide a chlorine-containing-waste treatment device, etc., with which it is possible to reduce the volume of an obtained regenerated article, to obtain a regenerated article in which the chlorine content is reduced by a substantial amount, and to obtain a regenerated article in which the chlorine content is further reduced by rapidly using the obtained regenerated article as a resource.SOLUTION: A chlorine-containing-waste treatment device 1 has: a pressure-resistant container 11 provided with an introduction port 2, a residual steam discharge port 31, and a regenerated article discharge port 4; and superheated steam supply means 5 located within the pressure-resistant container, wherein the chlorine-containing-waste treatment device comprises residual steam suction / discharge means 3 for performing hydrolysis treatment and suctioning / discharging residual steam generated due to the hydrolysis treatment from the residual steam discharge port 31 to the outside of the pressure-resistant container 11 when an electric resistance value pertaining to the agitation resistance of a treated product of the chlorine-containing waste falls.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a chlorine-containing waste treatment apparatus and a method for decontaminating chlorine-containing waste, and more specifically, to a chlorine-containing waste treatment apparatus which hydrolyzes the chlorine-containing waste under high temperature and high pressure conditions, the apparatus comprising a sealable pressure-resistant vessel having an inlet for introducing chlorine-containing waste, a residual steam outlet for discharging residual steam, and a regenerated product outlet for discharging regenerated product, and a superheated steam supply means for supplying superheated steam into the pressure-resistant vessel, the apparatus comprising: a pressure-resistant vessel having a superheated steam supply means for supplying superheated steam into the pressure-resistant vessel; and a pressure-resistant vessel having a superheated steam supply means for supplying superheated steam into the pressure-resistant vessel; The present invention relates to a chlorine-containing waste treatment apparatus comprising a residual steam suction and discharge means for suctioning and discharging the residual steam from a residual steam discharge port to the outside of the pressure-resistant vessel, a chlorine-containing waste treatment system comprising the chlorine-containing waste treatment apparatus, and a method for desalting chlorine-containing waste comprising the steps of: introducing chlorine-containing waste into a sealable pressure-resistant vessel; hydrolyzing the chlorine-containing waste under high-temperature and high-pressure conditions in the pressure-resistant vessel to obtain a regenerated product; and, following the hydrolysis, sucking and discharging the residual steam after the hydrolysis to the outside of the pressure-resistant vessel. [Background technology]

[0002] General waste such as food waste, construction waste, medical waste, and urban waste such as industrial waste are chlorine-containing wastes that contain a lot of organic chlorine compounds such as polyvinyl chloride (PVC). When such chlorine-containing wastes are incinerated using an incinerator or heat recovery furnace, harmful substances such as dioxins and environmental hormones may be generated. For this reason, a method of hydrolyzing chlorine-containing wastes using supercritical water (temperature 374.2°C or higher and pressure 22.12MPa or higher) or subcritical water (temperature 100-300°C and pressure 1-8MPa), which is in a region slightly lower than the critical point, has been proposed. This is because the chlorine is separated (desalinated) from the chlorine-containing wastes by hydrolysis using supercritical water or subcritical water, and can be transferred to the residual steam after hydrolysis, which is saturated steam.

[0003] For example, a reaction apparatus has been proposed (Patent Document 1), which is a reaction apparatus for hydrothermal reaction treatment of organic waste containing organic chlorine compounds under high temperature and pressure conditions, the reaction apparatus having a sealable reaction vessel equipped with an inlet for feeding organic waste containing organic chlorine compounds, an exhaust valve for exhausting exhaust steam and exhaust gas, and an outlet for exhausting regenerated material, and a second steam supply port for supplying superheated steam into the reaction vessel, and which is equipped with an exhaust gas treatment facility that can suck and discharge the exhaust steam and exhaust gas generated by the hydrothermal reaction treatment outside the reaction vessel through the exhaust valve.

[0004] The reaction apparatus disclosed in the above-mentioned Patent Document 1 is a drying apparatus equipped with a hydrothermal reaction device to modify (hydrolyze) organic compounds and organic chlorine compounds in the raw organic waste material by a hydrothermal reaction using saturated steam or superheated steam, and a drying device to volatilize the organic chlorine compounds in the hydrothermal reaction product. However, with this method, the organic chlorine compounds that have migrated to the residual steam at the time of modification treatment return to the hydrothermal reaction product, and it is difficult to sufficiently volatilize the organic chlorine compounds that have returned to the hydrothermal reaction product by drying.

[0005] On the other hand, a rotating barrel type tea leaf steamer has been disclosed that can obtain steamed tea leaves with a consistent level of steaming by detecting the rotational resistance of the agitator shaft by connecting a resistor to the drive motor of the agitator shaft to which the agitator blades are attached and measuring the electrical resistance acting on the drive motor, thereby allowing the steaming condition of the tea leaves added to the device to be confirmed while operating the device (Patent Document 2). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2010-185021 A [Patent Document 2] Japanese Patent Application Publication No. 8-070770 Summary of the Invention [Problem to be solved by the invention]

[0007] However, the rotating drum type tea leaf steamer disclosed in the above-mentioned Patent Document 2 is a device that processes tea leaves to an appropriate steaming level in order to obtain steamed tea leaves with a consistent steaming level. Therefore, it is necessary to operate the device while checking the steaming level of the tea leaves fed into the device. The purpose and effect of the device are different from those of a device that completely modifies (hydrolyzes) the organic waste material by hydrothermal reaction.

[0008] The present invention aims to provide a chlorine-containing waste treatment device, a chlorine-containing waste treatment system including the chlorine-containing waste treatment device, and a method for desalination of chlorine-containing waste, which can prevent chlorine, which has been separated from chlorine-containing waste by hydrolysis using supercritical water or subcritical water and migrated to the residual steam after the hydrolysis treatment, which is saturated steam, from returning to the generated regenerated product as much as possible, thereby obtaining a regenerated product with a significantly reduced chlorine content, and the obtained regenerated product can be used as a resource such as carbon-neutral fuel. In addition, the obtained regenerated product can be reduced in volume and quickly washed, thereby obtaining a regenerated product with an even reduced chlorine content. Furthermore, the obtained regenerated product can be dried in a pressure-resistant container, thereby allowing the generated regenerated product to be quickly used as a resource. [Means for solving the problem]

[0009] As a result of intensive research, the present inventors have found that the volume of the regenerated product can be reduced by hydrolyzing chlorine-containing waste under high-temperature and high-pressure conditions in a sealable pressure-resistant container, and then sucking and discharging the residual steam after the hydrolysis from the residual steam outlet of the pressure-resistant container to the outside of the container, that the chlorine separated from the chlorine-containing waste by the hydrolysis using supercritical water or subcritical water and transferred to the residual steam after the hydrolysis, which is saturated steam, can be prevented from returning to the regenerated product obtained, and a regenerated product with a significantly reduced chlorine content can be obtained, that the regenerated product obtained in this way can be quickly washed to obtain a regenerated product with an even reduced chlorine content, and that the regenerated product obtained in this way can be quickly used as a resource by drying it in a pressure-resistant container, and have completed the following inventions.

[0010] (1) A chlorine-containing waste treatment apparatus for hydrolyzing and treating the chlorine-containing waste under high temperature and high pressure conditions, comprising a sealable pressure-resistant vessel having an inlet for feeding chlorine-containing waste, a residual steam outlet for discharging residual steam, and a regenerated product outlet for discharging regenerated product, and a superheated steam supply means for supplying superheated steam into the pressure-resistant vessel, wherein the apparatus further comprises a residual steam suction and discharge means for suctioning and discharging the residual steam generated by the hydrolysis treatment from the residual steam outlet to the outside of the pressure-resistant vessel when the value of the electrical resistance associated with the stirring resistance of the treated chlorine-containing waste drops after the hydrolysis treatment.

[0011] (2) A chlorine-containing waste treatment apparatus for hydrolyzing the chlorine-containing waste under high temperature and high pressure conditions, comprising a sealable pressure-resistant vessel having an inlet for introducing chlorine-containing waste, a residual steam outlet for discharging residual steam, and a regenerated product outlet for discharging regenerated product, and a superheated steam supply means for supplying superheated steam into the pressure-resistant vessel, wherein the apparatus further comprises a residual steam suction and discharge means for suctioning and discharging the residual steam generated by the hydrolysis treatment from the residual steam outlet to the outside of the pressure-resistant vessel when the electric resistance value related to the stirring resistance of the treated chlorine-containing waste drops after the hydrolysis treatment, and a cleaning liquid injection means for injecting a cleaning liquid for washing the regenerated product obtained by the hydrolysis treatment into the pressure-resistant vessel while the residual steam generated by the hydrolysis treatment is suctioned and discharged to the outside of the pressure-resistant vessel, or after the residual steam generated by the hydrolysis treatment is suctioned and discharged to the outside of the pressure-resistant vessel.

[0012] (3) The chlorine-containing waste treatment device according to (1), further comprising a residual steam-containing solid matter recovery means for recovering solid matter contained in the residual steam sucked and discharged.

[0013] (4) A chlorine-containing waste treatment device as described in (2), characterized in that it is provided with a drying air supply means for supplying air for drying the washed regenerated material into the pressure vessel after the regenerated material is washed in the pressure vessel.

[0014] (5) A chlorine-containing waste treatment system comprising the chlorine-containing waste treatment device according to any one of (1) to (4).

[0015] (6) A method for desalting chlorine-containing waste, comprising the steps of: introducing chlorine-containing waste into a sealable pressure vessel; supplying superheated steam into the pressure vessel; hydrolyzing the chlorine-containing waste while stirring it under high temperature and high pressure conditions in the pressure vessel to obtain a regenerated product; and, when the hydrolysis is completed and the value of the electrical resistance associated with the stirring resistance of the treated chlorine-containing waste drops, sucking and discharging the residual steam produced by the hydrolysis outside the pressure vessel.

[0016] (7) A method for desalting chlorine-containing waste, comprising the steps of: feeding the chlorine-containing waste into a sealable pressure vessel; supplying superheated steam into the pressure vessel; hydrolyzing the chlorine-containing waste in the pressure vessel while stirring it under high temperature and high pressure conditions to obtain a regenerated product; sucking and discharging the residual steam generated by the hydrolysis treatment outside the pressure vessel when the value of the electrical resistance associated with the stirring resistance of the treated chlorine-containing waste drops after the hydrolysis treatment; and injecting a washing liquid into the pressure vessel to wash the regenerated product while the residual steam generated by the hydrolysis treatment is being sucked and discharged outside the pressure vessel or after the residual steam generated by the hydrolysis treatment is being sucked and discharged outside the pressure vessel.

[0017] (8) The method according to (6), further comprising a step of recovering solid matter contained in the residual steam discharged by suction.

[0018] (9) The method according to (7), further comprising a step of supplying air into the pressure vessel after washing the regenerated material in the pressure vessel to dry the washed regenerated material. Effect of the Invention

[0019] According to the chlorine-containing waste treatment device, the chlorine-containing waste treatment system including the chlorine-containing waste treatment device, and the method for desalination of chlorine-containing waste of the present invention, the chlorine-containing waste is hydrolyzed under high temperature and high pressure conditions in a sealable pressure-resistant container, and then the residual steam after the hydrolysis is sucked and discharged from the residual steam outlet of the pressure-resistant container to the outside of the pressure-resistant container, thereby reducing the volume of the obtained regenerated material. In addition, the chlorine separated from the chlorine-containing waste by the hydrolysis using supercritical water or subcritical water and transferred to the residual steam after the hydrolysis, which is saturated steam, can be prevented from returning to the obtained regenerated material as much as possible, and a regenerated material with a significantly reduced chlorine content can be obtained. In addition, by quickly washing the obtained regenerated material, a regenerated material with an even reduced chlorine content can be obtained. Furthermore, by drying the obtained regenerated material in the pressure-resistant container, the obtained regenerated material can be quickly used as a resource. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is a diagram showing a pressure vessel 11 of a chlorine-containing waste treatment apparatus 1 according to an embodiment of the present invention. [Diagram 2] FIG. 1 is a diagram showing a chlorine-containing waste treatment device 1 according to an embodiment of the present invention. [Diagram 3] FIG. 1 is a diagram showing a first embodiment of a method for desalting chlorine-containing waste according to the present invention. [Figure 4] 1 shows different aspects of a first embodiment of a method for desalting chlorine-containing waste according to the present invention; FIG. [Diagram 5] FIG. 2 is a diagram showing a second embodiment of the method for desalting chlorine-containing waste according to the present invention. [Figure 6] 3A-3D show different aspects of a second embodiment of the method for desalting chlorine-containing waste according to the present invention. [Figure 7] FIG. 2 is a diagram showing a third embodiment of the method for desalting chlorine-containing waste according to the present invention. [Figure 8] 3A-3C show different aspects of a third embodiment of the method for desalting chlorine-containing waste according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, the chlorine-containing waste treatment apparatus according to the present invention, the chlorine-containing waste treatment system including the chlorine-containing waste treatment apparatus, and the method for desalination of chlorine-containing waste will be described in detail with reference to the drawings. First, a first embodiment of the chlorine-containing waste treatment apparatus according to the present invention will be described. As shown in FIG. 1 and FIG. 2, the chlorine-containing waste treatment apparatus 1 of the first embodiment is a chlorine-containing waste treatment apparatus 1 that hydrolyzes the chlorine-containing waste under high temperature and high pressure conditions, and has a sealable pressure-resistant container 11 including an inlet 2 for introducing chlorine-containing waste, a residual steam outlet 31 for discharging residual steam, and a regenerated product outlet 4 for discharging regenerated product, and a superheated steam supply means 5 for supplying superheated steam into the pressure-resistant container 11. The apparatus is also provided with a residual steam suction and discharge means 3 for sucking and discharging the residual steam generated by the hydrolysis treatment from the residual steam outlet 31 to the outside of the pressure-resistant container 11 following the hydrolysis treatment. Hereinafter, each component will be described in detail.

[0022] In the chlorine-containing waste treatment device 1 of the first embodiment, the "chlorine-containing waste" is not particularly limited as long as it is waste that contains chlorine, and examples thereof include household waste such as food waste, construction waste, medical waste, nursing care waste, food residues, livestock waste, various resins such as waste plastic, paper sludge, sewage sludge, wastewater sludge, wood, plants, paper, rags, activated carbon, asphalt, and also includes waste containing inorganic matter because it can be precipitated after hydrolysis treatment.

[0023] In addition, in the chlorine-containing waste treatment device 1 of the first embodiment, the "regenerated material" refers to a material obtained by hydrolyzing chlorine-containing waste under high temperature and high pressure conditions, and can be reused as fuel such as carbon-neutral fuel, fertilizer, feed, etc.

[0024] In the chlorine-containing waste treatment device 1 of the first embodiment, "steam" means water vapor, and the steam may contain impurities within a range that does not impair the characteristics of the present invention, and includes not only the gas phase of a substance below its critical temperature but also the gas phase of a substance above its critical temperature. Also, "superheated steam" means steam obtained by heating water to a temperature above its saturation temperature (boiling point), in other words, high-temperature steam obtained by further heating the saturated steam generated by boiling water.

[0025] In addition, in the chlorine-containing waste treatment device 1 of the first embodiment, the "high temperature and high pressure conditions" refer to subcritical water conditions (temperature of 100 to 300°C and pressure of 1 to 8 MPa, temperature of 300 to 374.2°C and pressure of 8 MPa to 22.12 MPa) and supercritical water conditions (temperature of 374.2°C or higher and pressure of 22.12 MPa or higher), with a temperature of 200 to 250°C and pressure of 1 to 5 MPa being preferred, a temperature of 210 to 240°C and pressure of 2 to 4 MPa being more preferred, a temperature of 220 to 240°C and pressure of 2 to 4 MPa being even more preferred, a temperature of 225 to 235°C and pressure of 2.5 to 3.5 MPa being even more preferred, and a temperature of about 230°C and pressure of about 3 MPa being the most preferred. In the chlorine-containing waste treatment device 1 of the first embodiment, the most preferable "high temperature and high pressure conditions" are a temperature of 230°C and a pressure of 3 MPa. However, since some variation in both the temperature and pressure conditions is unavoidable, the most preferable "high temperature and high pressure conditions" are a temperature of approximately 230°C and a pressure of approximately 3 MPa.

[0026] As shown in Fig. 1, the pressure vessel 11 in the chlorine-containing waste treatment apparatus 1 of the first embodiment includes an inlet 2 for introducing chlorine-containing waste into the pressure vessel 11, a residual steam outlet 31 for discharging residual steam from the pressure vessel 11, and a regenerated product outlet 4 for discharging the regenerated product from the pressure vessel 11. The pressure vessel 11 is not limited as long as it has heat resistance and pressure resistance, as well as oxidation resistance and electrolytic corrosion resistance corresponding to hydrolysis treatment of chlorine-containing waste under high temperature and high pressure conditions, and can be sealed. Examples of such a pressure vessel 11 include stainless steel, nickel alloy, and steel vessels. The shape of the pressure vessel 11 is not particularly limited, but a cylindrical shape or a spherical shape that has excellent pressure resistance is preferable, and when a stirring and transporting means 12 is provided in the pressure vessel 11, a cylindrical shape is more preferable. Furthermore, the inlet 2 is not particularly limited as long as it can input chlorine-containing waste into the pressure vessel 11 and can be sealed, and one that can be appropriately selected by a person skilled in the art can be used; the residual steam outlet 31 is not particularly limited as long as it can discharge the residual steam in the pressure vessel 11 after treatment to the outside of the pressure vessel 11 and can be sealed, and one that can be appropriately selected by a person skilled in the art can be used; and the regenerated product outlet 4 is not particularly limited as long as it can discharge the regenerated product obtained by hydrolyzing the chlorine-containing waste in the pressure vessel 11 to the outside of the pressure vessel 11 and can be sealed, and one that can be appropriately selected by a person skilled in the art can be used.

[0027] 1 and 2, the superheated steam supply means 5 in the pressure-resistant vessel in the chlorine-containing waste treatment device 1 of the first embodiment includes a superheated steam inlet 51 in the pressure-resistant vessel, a superheated steam regulating valve 52 in the pressure-resistant vessel, a steam boiler 53, a steam supply pipe 54, a header 55, a superheated steam supply pipe 56, a high-temperature air generator 57, and a high-temperature air supply pipe 58. In the superheated steam supply means 5 in the pressure-resistant vessel of the chlorine-containing waste treatment device 1 of the first embodiment, the steam boiler 53 and the steam supply pipe 54 constitute the steam supply means, the high-temperature air generator 57 and the high-temperature air supply pipe 58 constitute the high-temperature air supply means, and the header 55 and the superheated steam supply pipe 56 constitute the superheated steam supply means in the mixed pressure-resistant vessel.

[0028] The superheated steam inlet 51 in the pressure vessel is an inlet for injecting the superheated steam supplied from the superheated steam supply pipe 56 into the pressure vessel 11, and is provided with a superheated steam control valve 52 in the pressure vessel for adjusting the amount of superheated steam supplied from the superheated steam supply pipe 56 to be injected into the pressure vessel 11. Such superheated steam inlet 51 in the pressure vessel and superheated steam control valve 52 in the pressure vessel are not particularly limited as long as they can inject the superheated steam supplied from the superheated steam supply pipe 56 into the pressure vessel 11 and adjust the amount of superheated steam supplied from the superheated steam supply pipe 56 to be injected into the pressure vessel 11, respectively, and can be appropriately selected by a person skilled in the art. In addition, the steam boiler 53 generates saturated steam (wet saturated steam or dry saturated steam) when the high-temperature air supply means functions, and generates superheated steam when the high-temperature air supply means does not function. Such a steam boiler 53 is not particularly limited as long as it can generate saturated steam and superheated steam, and one that can be appropriately selected by a person skilled in the art can be used. In addition, the steam supply pipe 54 is not particularly limited as long as it can transmit saturated steam and superheated steam and is pressure-resistant, and one that can be appropriately selected by a person skilled in the art can be used. In addition, the header 55 can mix the saturated steam supplied from the steam boiler 53 with the high-temperature air supplied from the high-temperature air supply means to generate superheated steam and send it to the superheated steam supply pipe 56 when the high-temperature air supply means functions, and can send the superheated steam supplied from the steam boiler 53 to the superheated steam supply pipe 56 when the high-temperature air supply means does not function, but as long as it is such a header 55, there is no particular limitation. In addition, the superheated steam supply pipe 56 can be appropriately selected by a person skilled in the art as long as it can transmit the superheated steam sent from the header 55 and is pressure-resistant, and one that can be appropriately selected by a person skilled in the art can be used. Here, when the high-temperature air supply means is functioning, the superheated steam supply pipe 56 is connected to the steam supply pipe 54 and the high-temperature air supply pipe 58 without going through the header 55, and the saturated steam supplied from the steam boiler 53 and the high-temperature air supplied from the high-temperature air supply means are mixed in the superheated steam supply pipe 56 to generate superheated steam, which is then sent into the pressure-resistant vessel 11.The high-temperature air generator 57 is not particularly limited as long as it can generate high-temperature air and send it to the high-temperature air supply pipe 58, and can be appropriately selected by a person skilled in the art. The high-temperature air supply pipe 58 is not particularly limited as long as it can pass the high-temperature air sent from the high-temperature air generator 57 and is pressure-resistant, and can be appropriately selected by a person skilled in the art. Here, the "high temperature" in the terms "high-temperature air generator 57", "high-temperature air supply pipe 58", "high-temperature air" and "high-temperature air" refers to a temperature of 600°C or higher, preferably a temperature of 700 to 1300°C, more preferably a temperature of 750 to 1250°C, even more preferably a temperature of 800 to 1200°C, even more preferably a temperature of 850 to 1150°C, and most preferably a temperature of 900 to 1000°C.

[0029] The residual steam suction and discharge means 3 in the chlorine-containing waste treatment device 1 of the first embodiment includes a residual steam discharge port 31, a residual steam discharge valve 32, a residual steam suction device 33, and a residual steam delivery pipe 34, as shown in Fig. 1 and Fig. 2. As shown in Fig. 1, the residual steam discharge port 31 is formed with a residual steam discharge valve 32, which adjusts the discharge amount of residual steam discharged from the pressure vessel 11 after treatment. Also, as shown in Fig. 2, the residual steam suction device 33 is installed so as to communicate with the residual steam discharge port 31 via the residual steam delivery pipe 34, and after the chlorine-containing waste is hydrolyzed under high temperature and high pressure conditions in the pressure vessel 11, the residual steam generated by the hydrolysis is sucked and discharged from the residual steam discharge port 31 to the outside of the pressure vessel 11. Here, the term "following" means as soon as possible after the hydrolysis treatment, and may be substituted with the terms "immediately after", "next", and "after". In addition, the residual steam exhaust port 31, the residual steam exhaust valve 32, the residual steam suction device 33, and the residual steam delivery pipe 34 are not particularly limited as long as they can perform their respective roles described above, and any suitable device that can be selected by a person skilled in the art can be used.

[0030] In addition, the motor 82 of the chlorine-containing waste treatment device 1 of the first embodiment is provided with a resistor 36 constituting the residual steam suction and discharge means 3. When the chlorine-containing waste put into the pressure vessel 11 is hydrolyzed under high temperature and high pressure conditions, the stirring resistance of the treated product is significantly reduced, and the time point at which the value of the electrical resistance related to the stirring resistance drops can be grasped by monitoring with the resistor 36. As a result, when the value of the electrical resistance related to the stirring resistance of the treated chlorine-containing waste drops after the hydrolysis, the residual steam generated by the hydrolysis can be sucked and discharged from the residual steam outlet 31 to the outside of the pressure vessel 11, and the residual steam and the generated regenerated product can be quickly separated. Therefore, it is possible to prevent chlorine, which has been separated from the chlorine-containing waste and transferred to the residual steam by the hydrolysis, from returning to the generated regenerated product as much as possible, and it is possible to obtain a regenerated product with a significantly reduced chlorine content. The resistor 36 is not particularly limited as long as it can measure the value of the electrical resistance related to the stirring resistance, and any resistor that can be appropriately selected by a person skilled in the art can be used.

[0031] The chlorine-containing waste treatment device 1 of the first embodiment further includes a residual steam-containing solid matter recovery means 35 for recovering solid matter contained in the sucked and discharged residual steam, as shown in Fig. 2. Examples of such residual steam-containing solid matter recovery means 35 include a clean room and a dust removal device. The residual steam-containing solid matter recovery means 35 is not particularly limited as long as it can fulfill its role, and any means that can be appropriately selected by a person skilled in the art can be used.

[0032] In the chlorine-containing waste treatment device 1 of the first embodiment, as shown in Fig. 2, an input conveyor 21 is provided connected to the input port 2 and transports chlorine-containing waste to the input port 2. The input conveyor 21 is not particularly limited as long as it can fulfill the above-mentioned roles, and any conveyor that can be appropriately selected by a person skilled in the art can be used.

[0033] In the chlorine-containing waste treatment device 1 of the first embodiment, as shown in Fig. 2, a discharge conveyor 41, a sorting device 42, and a transport conveyor 43 are arranged in connection with the regenerated material discharge port 4, and after a series of treatments, the regenerated material is discharged from the pressure vessel 11, sorted, and transported to a container 44. The discharge conveyor 41, the sorting device 42, the transport conveyor 43, and the container 44 are not particularly limited as long as they can fulfill the respective roles described above, and each of them can be selected appropriately by a person skilled in the art.

[0034] As shown in FIG. 1, a horizontal rotating shaft 121 with a plurality of blades 122 attached at approximately equal intervals is disposed in the pressure vessel 11 of the chlorine-containing waste treatment device 1 of the first embodiment. When stirring under high temperature and high pressure conditions, the shaft continues to rotate forward at 15 to 20 rpm, and when the hydrolysis treatment is completed, the shaft rotates backward at 30 to 40 rpm to transfer the regenerated material to the regenerated material discharge port 4. The plurality of blades 122 attached to the horizontal rotating shaft 121 can be attached at an angle of 15 to 35° with respect to the regenerated material discharge port 4, which allows easy replacement when worn. In addition, instead of the horizontal rotating shaft 121 with the plurality of blades 122 attached at approximately equal intervals, a rotating element such as a helix, a turbine, or an anchor can be disposed in the pressure vessel 11. The form of the blade 122 in the chlorine-containing waste treatment device 1 of the first embodiment can be a flat blade or the like.

[0035] The chlorine-containing waste treatment device 1 of the first embodiment is provided with a pressure-resistant vessel internal pressure adjustment means 13, and as shown in Fig. 1, the pressure-resistant vessel internal pressure adjustment means 13 is provided with a pressure-resistant vessel internal pressure adjustment valve 131, a safety valve 132, and a pressure-resistant vessel internal temperature / pressure gauge 133. The pressure-resistant vessel internal pressure adjustment valve 131 is a type of self-control valve that works to keep the pressure inside the pressure-resistant vessel 11 constant, the safety valve 132 is also called a relief valve, and refers to a valve that automatically releases pressure when the pressure inside the pressure-resistant vessel 11 rises abnormally and automatically closes as the internal pressure drops, and the pressure-resistant vessel internal temperature / pressure gauge 133 is an instrument that measures the temperature and pressure inside the pressure-resistant vessel 11, and for each of them, one that can be appropriately selected by a person skilled in the art can be used.

[0036] A drain 14 is formed at the bottom of the pressure vessel 11 in the chlorine-containing waste treatment device 1 of the first embodiment, as shown in Fig. 1. Such a drain 14 can be selected appropriately by a person skilled in the art.

[0037] As shown in Fig. 1, the chlorine-containing waste treatment device 1 of the first embodiment is provided with an agitation transfer drive means 8, which includes a bearing 81, a motor 82, and a reducer 83. The bearing 81, the motor 82, and the reducer 83 are not particularly limited as long as they can fulfill the above-mentioned respective roles, and any suitable selection can be made by a person skilled in the art. For example, if the regenerated material can be agitated and transferred to the regenerated material discharge port 4 by other means or configurations other than the supply of the cleaning agent into the pressure-resistant container 11 described later, the chlorine-containing waste treatment device 1 of the first embodiment does not need to include the horizontal rotation shaft 121 and the blade 122, and part or all of the configuration of the agitation transfer drive means 8.

[0038] 2, the chlorine-containing waste treatment apparatus 1 of the first embodiment includes a control panel 91 and a fuel tank 92. The chlorine-containing waste treatment apparatus 1 is operated by the control panel 91, and receives fuel from the fuel tank 92. The control panel 91 and the fuel tank 92 are not particularly limited as long as they can fulfill the respective roles described above, and any suitable one that can be selected by a person skilled in the art can be used.

[0039] Next, a second embodiment of the chlorine-containing waste treatment device according to the present invention will be described. As shown in Fig. 1 and Fig. 2, the chlorine-containing waste treatment device 1 of the second embodiment further includes a cleaning liquid injection means 6 for injecting a cleaning liquid for washing the regenerated material obtained by the hydrolysis treatment into the pressure vessel 11 while the residual steam generated by the hydrolysis treatment is sucked and discharged outside the pressure vessel 11, or after the residual steam generated by the hydrolysis treatment is sucked and discharged outside the pressure vessel 11. Each component will be described in detail below. In addition, among the chlorine-containing waste treatment device 1 of the second embodiment, the components that are the same as or correspond to the components of the chlorine-containing waste treatment device 1 of the first embodiment described above are assigned the same reference numerals and will not be described again.

[0040] As shown in Figs. 1 and 2, the cleaning liquid injection means 6 in the chlorine-containing waste treatment apparatus 1 of the second embodiment includes a cleaning liquid inlet 61, a cleaning liquid tank 62, and a cleaning liquid supply pipe 63. The cleaning liquid inlet 61 in the chlorine-containing waste treatment apparatus 1 of the second embodiment is an inlet for injecting the cleaning liquid supplied from the cleaning liquid tank 62 through the cleaning liquid supply pipe 63 into the pressure vessel 11. In the chlorine-containing waste treatment apparatus 1 of the second embodiment, the "cleaning liquid" is not particularly limited as long as it can clean the regenerated material obtained by hydrolysis and the regenerated material after cleaning can be reused as fuel such as carbon-neutral fuel, fertilizer, feed, etc., and any suitable one can be selected by a person skilled in the art. As such a cleaning liquid, water, an alkaline aqueous solution, an acidic aqueous solution, a neutral detergent, an alcohol aqueous solution, or other water-soluble solvent can be used, and a surfactant or an antifoaming agent may be added as necessary. However, water or Warm water is preferred, more preferably water or hot water at 5 to 100 ° C, more preferably water or hot water at 6 to 90 ° C, more preferably water or hot water at 7 to 80 ° C, more preferably water or hot water at 8 to 70 ° C, more preferably water or hot water at 9 to 65 ° C, more preferably water or hot water at 10 to 60 ° C, more preferably water or hot water at 11 to 55 ° C, more preferably water or hot water at 12 to 50 ° C, even more preferably water or hot water at 13 to 45 ° C, even more preferably water or hot water at 14 to 40 ° C, and particularly preferably water or hot water at 15 to 35 ° C. The "cleaning liquid" in the chlorine-containing waste treatment device 1 of the second embodiment may be used to clean the regenerated product obtained by hydrolysis treatment and at the same time clean the inside of the pressure-resistant container 11.

[0041] In the chlorine-containing waste treatment device 1 of the second embodiment, the cleaning liquid inlet 61 is not particularly limited as long as it can inject the cleaning liquid supplied from the cleaning liquid tank 62 through the cleaning liquid supply pipe 63 into the pressure vessel 11, and any suitable selection can be used by a person skilled in the art. The cleaning liquid tank 62 is not particularly limited as long as it can store the cleaning liquid, and any suitable selection can be used by a person skilled in the art. The cleaning liquid supply pipe 63 is not particularly limited as long as it can pass the cleaning liquid, and any suitable selection can be used by a person skilled in the art.

[0042] Next, as shown in Figures 1 and 2, the chlorine-containing waste treatment apparatus 1 of the second embodiment further includes a drying air supply means 7 for supplying air for drying the regenerated material after cleaning the regenerated material in the pressure vessel 11 into the pressure vessel 11, and such drying air supply means 7 includes an inlet side drying air supply port 71, a residual steam outlet side drying air supply port 72, a drying air supply device 73, and a drying air supply pipe 74 capable of supplying drying air into the pressure vessel 11.

[0043] The inlet side drying air supply port 71 and the residual steam outlet side drying air supply port 72 are supply ports for drying air for the washed regenerated material, which is supplied from the drying air supply device 73 to the pressure vessel 11 through the drying air supply pipe 74 after the regenerated material is washed in the pressure vessel 11. Such inlet side drying air supply port 71 and residual steam outlet side drying air supply port 72 are not particularly limited as long as they can be supplied from the drying air supply device 73 to the pressure vessel 11 through the drying air supply pipe 74 after the regenerated material is washed in the pressure vessel 11, and any suitable selection can be used by a person skilled in the art. Note that, as a supply port for drying air for the washed regenerated material, the cleaning liquid inlet 61 can be used together with the inlet side drying air supply port 71 and the residual steam outlet side drying air supply port 72, or instead of the inlet side drying air supply port 71 and the residual steam outlet side drying air supply port 72.

[0044] The drying air supply device 73 is a device that supplies drying air for the washed regenerated material into the pressure vessel 11 through the drying air supply pipe 74. Such a drying air supply device 73 can be appropriately selected by a person skilled in the art as long as it is capable of supplying drying air for the washed regenerated material, and is not particularly limited. In addition, the drying air supply pipe 74 can be appropriately selected by a person skilled in the art as long as it can supply drying air for the washed regenerated material that is supplied by the drying air supply device 73 into the pressure vessel 11 through the inlet side drying air supply port 71 and the residual steam outlet side drying air supply port 72.

[0045] In the chlorine-containing waste treatment apparatus 1 of the second embodiment, the "air" for drying the washed regenerated material is preferably dry. The temperature of the air is preferably 20 to 100°C, more preferably 30 to 95°C, even more preferably 35 to 90°C, still more preferably 40 to 85°C, and most preferably 45 to 80°C.

[0046] The chlorine-containing waste treatment device 1 of the first and second embodiments may further include any configuration within the scope of the present invention, such as a heat-resistant and pressure-resistant jacket surrounding the pressure vessel 11, an air exhaust means in the pressure vessel for exhausting the air in the pressure vessel 11 to the outside from the start of the introduction of the chlorine-containing waste into the inlet 2 to the closing of the inlet 2, a low-temperature air supply means for supplying low-temperature air into the pressure vessel 11 from the generation of the regenerated product to the discharge of the regenerated product outside the pressure vessel 11, and a steel plate replacement unit provided at the bottom of the pressure vessel 11. However, the configuration of the chlorine-containing waste treatment device according to the present invention is not limited to the configuration of the first and second embodiments described above.

[0047] Next, an embodiment of the chlorine-containing waste treatment system according to the present invention will be described. In the chlorine-containing waste treatment system 0 (not shown) of this embodiment, the same or corresponding configurations as those of the first and second embodiments of the chlorine-containing waste treatment device according to the present invention will be given the same reference numerals and will not be described again. The chlorine-containing waste treatment system 0 (not shown) of this embodiment is equipped with at least one of the chlorine-containing waste treatment devices 1 of the first and second embodiments. Such a chlorine-containing waste treatment system 0 (not shown) of this embodiment may be equipped with at least one of the chlorine-containing waste treatment devices 1 of the first and second embodiments, and may further include any configuration such as a circulator, a deodorizer, a cooling tower, a condenser, an oil-water separator, a water treatment device, a boiler water circulation device, etc., as long as it does not impair the characteristics of the present invention. However, the configuration of the chlorine-containing waste treatment system according to the present invention is not limited to the configuration of the above-mentioned embodiment.

[0048] Next, a first embodiment of the method for desalting chlorine-containing waste according to the present invention will be described. In the method DM for desalting chlorine-containing waste according to the first embodiment, the same or corresponding components as those in the first and second embodiments of the chlorine-containing waste treatment device according to the present invention and the embodiment of the chlorine-containing waste treatment system according to the present invention will be denoted by the same reference numerals and will not be described again. As shown in FIG. 3, the method DM for desalting chlorine-containing waste according to the first embodiment has the following steps (i) to (iv); (i) a step of introducing chlorine-containing waste into a sealable pressure-resistant container (waste introduction step S1); (ii) a step of supplying superheated steam into the pressure-resistant vessel (superheated steam supply step S2); (iii) a step of hydrolyzing the chlorine-containing waste under high temperature and high pressure conditions in the pressure vessel to obtain a regenerated product (hydrolysis treatment step S3); (iv) A process for sucking and discharging the residual steam generated by the hydrolysis treatment outside the pressure vessel when the value of the electrical resistance associated with the stirring resistance of the treated chlorine-containing waste material has dropped after the hydrolysis treatment (residual steam suction and discharge process S4).

[0049] The "chlorine-containing waste", "steam", "superheated steam", "high temperature and high pressure conditions" and "regenerated material" in the waste input step S1, the superheated steam supply step S2, the hydrolysis treatment step S3 and the residual steam suction and discharge step S4 are the same as those in the first embodiment of the chlorine-containing waste treatment device according to the present invention. The "pressure-resistant container" in the waste input step S1, the superheated steam supply step S2, the hydrolysis treatment step S3 and the residual steam suction and discharge step S4 is not limited as long as it has heat resistance and pressure resistance, as well as oxidation resistance and electric corrosion resistance corresponding to the hydrolysis treatment of the chlorine-containing waste under high temperature and high pressure conditions and can be sealed, and examples of such pressure-resistant containers include stainless steel, nickel alloy and steel containers, and examples of which include the pressure-resistant container 11 in the first embodiment of the chlorine-containing waste treatment device according to the present invention.

[0050] In the residual steam suction and discharge step S4, for example, a resistor is provided, and the time point at which the value of the electric resistance related to the stirring resistance drops can be grasped by monitoring using the resistor, and thus, when the value of the electric resistance related to the stirring resistance of the treated chlorine-containing waste drops after the hydrolysis treatment, the residual steam generated by the hydrolysis treatment can be sucked and discharged outside the pressure vessel. As a result, the residual steam and the generated regenerated material can be quickly separated, and therefore, it is possible to prevent as much as possible the chlorine that has been separated from the chlorine-containing waste by the hydrolysis treatment and transferred to the residual steam from returning to the generated regenerated material.

[0051] Furthermore, the method DM for desalting chlorine-containing waste of the first embodiment may include the following step (v) as shown in FIG. 4 : (v) A step of recovering solid matter contained in the residual steam discharged by suction (residual steam solid matter recovery step S5).

[0052] The residual steam solids recovery process S5 can be carried out, for example, by using a clean room or a dust removal device, but is not limited to these, and can be carried out using anything that can be appropriately selected by a person skilled in the art.

[0053] Next, a second embodiment of the method for desalting chlorine-containing waste according to the present invention will be described. Note that, in the method DM for desalting chlorine-containing waste according to the second embodiment, the same or corresponding components as those in the first and second embodiments of the chlorine-containing waste treatment device according to the present invention, the embodiment of the chlorine-containing waste treatment system according to the present invention, and the first embodiment of the method DM for desalting chlorine-containing waste according to the present invention will be denoted by the same reference numerals and will not be described again. As shown in FIG. 5, the method DM for desalting chlorine-containing waste according to the second embodiment has the following steps (I) to (V); (I) A step of introducing chlorine-containing waste into a sealable pressure-resistant container (waste introduction step S1); (II) a step of supplying superheated steam into the pressure-resistant vessel (superheated steam supply step S2); (III) a step of hydrolyzing the chlorine-containing waste under high temperature and high pressure conditions in the pressure-resistant vessel to obtain a regenerated product (hydrolysis treatment step S3); (IV) A process for aspirating and discharging the residual steam generated by the hydrolysis treatment to the outside of the pressure vessel at the time when the value of the electrical resistance related to the stirring resistance of the treated chlorine-containing waste is dropped after the hydrolysis treatment (residual steam suction and discharge process S4). (V) A process for washing the regenerated material by injecting a washing liquid into the pressure vessel while the residual steam generated by the hydrolysis treatment is being sucked and discharged outside the pressure vessel, or after the residual steam generated by the hydrolysis treatment is being sucked and discharged outside the pressure vessel (regenerated material washing process S6).

[0054] The "washing liquid" in the regenerated product washing step S6 is the same as that in the second embodiment of the chlorine-containing waste treatment device according to the present invention. In addition, the regenerated product washing step S6 can be performed, for example, by using a washing liquid tank and a washing liquid supply pipe, but is not limited thereto, and can be performed by using one that can be appropriately selected by a person skilled in the art.

[0055] Moreover, the method DM for desalting chlorine-containing waste according to the second embodiment may include the residual steam solids recovery step S5 described above, as shown in FIG.

[0056] Next, a third embodiment of the method for desalting chlorine-containing waste according to the present invention will be described. In the method DM for desalting chlorine-containing waste according to the third embodiment, the same or corresponding components as those in the first and second embodiments of the chlorine-containing waste treatment device according to the present invention, the embodiment of the chlorine-containing waste treatment system according to the present invention, and the first and second embodiments of the method DM for desalting chlorine-containing waste according to the present invention will be denoted by the same reference numerals and will not be described again. As shown in FIG. 7, the method DM for desalting chlorine-containing waste according to the third embodiment has the following steps (a) to (f); (a) a step of introducing chlorine-containing waste into a sealable pressure-resistant container (waste introduction step S1); (b) a step of supplying superheated steam into the pressure-resistant vessel (superheated steam supply step S2); (c) a step of hydrolyzing the chlorine-containing waste under high temperature and high pressure conditions in the pressure-resistant vessel to obtain a regenerated product (hydrolysis treatment step S3); (d) A step of aspirating and discharging the residual steam generated by the hydrolysis treatment to the outside of the pressure vessel at the time when the value of the electrical resistance related to the stirring resistance of the treated chlorine-containing waste drops after the hydrolysis treatment (residual steam suction and discharge step S4). (e) A process of injecting a cleaning liquid into the pressure vessel to clean the regenerated material while the residual steam generated by the hydrolysis treatment is being sucked out of the pressure vessel or after the residual steam generated by the hydrolysis treatment is being sucked out of the pressure vessel (regenerated material cleaning process S6). (f) after washing the regenerated material in the pressure vessel, supplying air into the pressure vessel to dry the washed regenerated material (regenerated material drying step S7);

[0057] The "air" in the regenerated material drying step S7 is the same as that in the second embodiment of the chlorine-containing waste treatment device according to the present invention. In addition, the regenerated material drying step S7 can be performed, for example, by using a drying air supply device and a drying air supply pipe, but is not limited thereto, and can be performed by using one that can be appropriately selected by a person skilled in the art.

[0058] Moreover, the method DM for desalting chlorine-containing waste according to the third embodiment may include the residual steam solids recovery step S5 described above, as shown in FIG.

[0059] The first, second and third embodiments of the method for desalting chlorine-containing waste according to the present invention may further include any configuration within the scope of the present invention, such as, for example, a blower for assisting the suction of residual steam, a deodorizing means, a cooling means, a condensing means, an oil-water separating means, a water treating means, etc. However, the configuration of the method for desalting chlorine-containing waste according to the present invention is not limited to the configuration of the first, second and third embodiments described above.

[0060] Next, the operation of the chlorine-containing waste treatment device according to the present invention will be described in detail based on the first and second embodiments of the chlorine-containing waste treatment device according to the present invention. In the operation of the chlorine-containing waste treatment device 1 of the first and second embodiments, the same or corresponding configurations as those of the chlorine-containing waste treatment device according to the present invention described above are denoted by the same reference numerals and will not be described again.

[0061] First, the chlorine-containing waste is transported by the feeding conveyor 21 to the feeding port 2 of the pressure vessel 11, and the chlorine-containing waste is fed into the pressure vessel 11 through the feeding port 2. At the same time that the chlorine-containing waste is fed into the pressure vessel 11, the bearing 81 and the motor 82 of the agitation transport drive means 8 of the chlorine-containing waste treatment device 1, which receives fuel from the fuel tank 92, are driven, thereby rotating the horizontal rotation shaft 121 of the agitation transport means 12, and the chlorine-containing waste fed into the pressure vessel 11 is agitated by the action of the multiple blades 122 attached to the horizontal rotation shaft 121.

[0062] Next, the inlet 2 is closed, and the superheated steam is supplied into the pressure vessel 11 by the superheated steam supply means 5 in the pressure vessel. When saturated steam (wet saturated steam or dry saturated steam) is supplied to the header 55 by the steam boiler 53 and the steam supply pipe 54, high-temperature air is supplied to the header 55 by the high-temperature air generator 57 and the high-temperature air supply pipe 58, and the supplied saturated steam (wet saturated steam or dry saturated steam) and the high-temperature air are mixed in the header 55 to generate superheated steam, which is then injected into the pressure vessel 11 through the superheated steam supply pipe 56. This allows the use of superheated steam without the need to install a superheated steam boiler, so that the running costs can be reduced and the superheated steam can be handled simply and safely. On the other hand, when superheated steam is supplied to the header 55 by the steam boiler 53 and the steam supply pipe 54, the supplied superheated steam is directly injected into the pressure vessel 11 through the superheated steam supply pipe 56. After the superheated steam is injected into the pressure vessel 11, the chlorine-containing waste that has already been put into the pressure vessel 11 and stirred is hydrolyzed under high temperature and high pressure conditions. Then, after the hydrolysis process is completed, the driving bearing 81 is stopped by the reducer 83 of the stirring / transporting driving means 8, and the movement of the horizontal rotating shaft 121 to which the multiple blades 122 are attached is stopped.

[0063] The residual steam generated by the hydrolysis treatment is sucked by the residual steam suction device 33 of the residual steam suction and discharge means 3 at the point when the value of the electric resistance related to the stirring resistance of the treated chlorine-containing waste drops after the hydrolysis treatment, and is discharged from the residual steam discharge port 31 to the outside of the pressure vessel 11. The residual steam discharged from the residual steam discharge port 31 moves to the residual steam suction device 33 through the residual steam delivery pipe 34 while the discharge amount is adjusted by the residual steam discharge valve 32. This allows the residual steam and the generated regenerated material to be quickly separated, so that the chlorine that was separated from the chlorine-containing waste by the hydrolysis treatment and transferred to the residual steam can be prevented from returning to the generated regenerated material as much as possible, and a regenerated material with a significantly reduced chlorine content can be obtained. As a result, such regenerated material can be reused as fuel such as carbon-neutral fuel, fertilizer, feed, etc.

[0064] Furthermore, the solid matter contained in the residual steam that has moved to the residual steam suction device 33 is collected by residual steam-containing solid matter collection means 35 .

[0065] In addition, while the residual steam is sucked by the residual steam suction device 33 of the residual steam suction and discharge means 3 and discharged from the residual steam discharge port 31 to the outside of the pressure vessel 11, or after the residual steam is sucked by the residual steam suction device 33 of the residual steam suction and discharge means 3 and discharged from the residual steam discharge port 31 to the outside of the pressure vessel 11, the cleaning liquid stored in the cleaning liquid tank 62 of the cleaning liquid injection means 6 is injected into the pressure vessel 11 from the cleaning liquid injection port 61 of the pressure vessel 11 through the cleaning liquid supply pipe 63, and the regenerated product obtained by the hydrolysis treatment is washed. At this time, the inside of the pressure vessel 11 may be washed at the same time. As a result, most of the chlorine that has returned to the regenerated product is removed, and a regenerated product with a reduced chlorine content can be obtained.

[0066] After the regenerated material is washed by the washing liquid injection means 6, air for drying the washed regenerated material is supplied from the drying air supply port 71 on the inlet side of the pressure vessel 11 and / or the drying air supply port 72 on the residual steam outlet side through the drying air supply pipe 74 by the drying air supply device 73 of the drying air supply means 7. As a result, the washed regenerated material is dried in the pressure vessel 11 by the washing liquid injection means 6, and the dried regenerated material can be immediately reused.

[0067] The regenerated material obtained by the hydrolysis treatment, the washed regenerated material, or the dried regenerated material is pushed out by a plurality of blades 122 attached to the horizontal rotating shaft 121 by the rotation of the horizontal rotating shaft 121 of the mixing and transporting means 12 and transported to the regenerated material discharge outlet 4. The regenerated material transported to the regenerated material discharge outlet 4 is carried by the discharge conveyor 41 to the sorting device 42, and after being sorted in the sorting device 42, the sorted regenerated material is transported by the transport conveyor 43 to a container 44.

[0068] Furthermore, even if the chlorine-containing waste contains inorganic materials such as metals, ceramics, glass, and inorganic rubber, these inorganic materials are not decomposed and are discharged in the same state as when the waste was input. Therefore, separation after decomposition is easy, and since the materials are completely sterilized, they can be recycled.

[0069] The process of hydrolyzing chlorine-containing waste to generate a regenerated product under high temperature and high pressure conditions by the above-mentioned chlorine-containing waste treatment device 1 can be operated and controlled by a control panel 91.

[0070] According to the chlorine-containing waste treatment device, the chlorine-containing waste treatment system, and the method for desalting chlorine-containing waste according to the present invention, the following effects can be obtained. 1. The inside of the pressure vessel 11 of the chlorine-containing waste treatment device 1 can be maintained in a subcritical or supercritical state. 2. Because chlorine-containing waste can be reliably hydrolyzed, even chlorine-containing waste that is difficult to handle can be safely decomposed and reduced in volume. The recycled material can be reused as carbon-neutral fuels, fertilizer, feed, etc. 3. A regenerated product with a significantly reduced chlorine content can be obtained. 4. The recycled material obtained after drying can be quickly used as a resource. 5. Inorganic materials such as metals, ceramics, glass, and inorganic rubber that are mixed in with chlorine-containing waste can be easily recycled. 5. Unlike incinerators and other large-scale treatment devices, the chlorine-containing waste treatment device and chlorine-containing waste treatment system of the present invention do not require the consent of residents or official permission to be installed.

[0071] The chlorine-containing waste treatment device, the chlorine-containing waste treatment system, and the method for desalination of chlorine-containing waste according to the present invention are not limited to the above-mentioned embodiments, and may be modified as appropriate without impairing the characteristics of the present invention. For example, configurations other than the above-mentioned embodiments and configurations may be appropriately adopted as long as the characteristics of the present invention are not impaired. [Explanation of symbols]

[0072] 0 Chlorine-containing waste treatment system 1. Chlorine-containing waste treatment equipment 2 Inlet 3. Means for suction and exhaust of residual vapor 4 Recycled material outlet 5. Means for supplying superheated steam to pressure vessel 6. Cleaning solution injection means 7 Drying air supply means 8. Agitation and transport drive means 11 Pressure vessels 12 Mixing and transporting means 13 Pressure-resistant vessel internal pressure adjustment means 14 Drain 21 Input conveyor 31 Residual steam exhaust port 32 Residual steam exhaust valve 33 Residual vapor suction device 34 Residual steam transport pipe 35 Means for recovering residual vapor-containing solids 36 resistor 41 Discharge conveyor 42 Sorting Equipment 43 Transport Conveyor 44 Container 51 Superheated steam inlet in pressure vessel 52 Pressure vessel internal superheated steam control valve 53 Steam Boiler 54 Steam supply pipe 55 Header 56 Superheated steam supply pipe 57 Hot Air Generator 58 Hot air supply pipe 61 Cleaning solution inlet 62 Cleaning solution tank 63 Cleaning fluid supply pipe 71 Drying air supply port on the inlet side 72 Residual steam exhaust side drying air supply port 73 Drying air supply device 74 Drying air supply pipe 81 Bearing 82 Motor 83 Reducer 91 Control Panel 92 Fuel Tank 121 Horizontal Rotation Axis 122 Blade 131 Pressure-resistant vessel internal pressure regulating valve 132 Safety valve 133 Pressure vessel temperature and pressure gauge DM: Method for desalination of chlorine-containing wastes S1 Waste input process S2 Superheated steam supply process S3 Hydrolysis treatment process S4 Residual vapor suction and discharge process S5 Residual steam solids recovery process S6 Regeneration cleaning process S7 Regenerated material drying process

Claims

1. A sealable pressure vessel having an inlet for introducing chlorine-containing waste, a residual steam outlet for discharging residual steam, and a regenerated product outlet for discharging the regenerated product; a superheated steam supply means for supplying superheated steam into the pressure-resistant vessel; A chlorine-containing waste treatment apparatus for hydrolyzing the chlorine-containing waste under high temperature and high pressure conditions, comprising: a residual steam suction and discharge means for suctioning and discharging the residual steam generated by the hydrolysis treatment from the residual steam discharge port to the outside of the pressure vessel when the value of the electrical resistance associated with the stirring resistance of the treated chlorine-containing waste drops after the hydrolysis treatment; a cleaning liquid injection means for injecting a cleaning liquid for washing the regenerated material obtained by the hydrolysis into the pressure vessel while the residual steam generated by the hydrolysis is being sucked and discharged outside the pressure vessel or after the residual steam generated by the hydrolysis is being sucked and discharged outside the pressure vessel; A chlorine-containing waste treatment device comprising:

2. 2. The chlorine-containing waste treatment apparatus according to claim 1, further comprising a residual steam-containing solid matter recovery means for recovering solid matter contained in the residual steam sucked and discharged.

3. 2. The chlorine-containing waste treatment apparatus according to claim 1, further comprising a drying air supply means for supplying air for drying the washed regenerated material into the pressure vessel after the regenerated material is washed in the pressure vessel.

4. A chlorine-containing waste treatment system comprising the chlorine-containing waste treatment device according to any one of claims 1 to 3.

5. 1. A method for desalting a chlorine-containing waste product, comprising the steps of: placing the chlorine-containing waste in a sealable pressure-resistant container; supplying superheated steam into the pressure vessel; A step of hydrolyzing the chlorine-containing waste while stirring it under high temperature and high pressure conditions in the pressure-resistant vessel to obtain a regenerated product; a step of sucking and discharging residual steam generated by the hydrolysis treatment to the outside of the pressure vessel at a point in time when the value of the electrical resistance associated with the stirring resistance of the treated chlorine-containing waste drops after the hydrolysis treatment; The method according to claim 1, further comprising a step of injecting a cleaning liquid into the pressure vessel to clean the regenerated material while the residual steam generated by the hydrolysis treatment is being sucked out of the pressure vessel or after the residual steam generated by the hydrolysis treatment is being sucked out of the pressure vessel to clean the regenerated material.

6. 6. The method of claim 5, further comprising the step of recovering solids contained in the residual vapor drawn off by suction.

7. 6. The method according to claim 5, further comprising the step of: after washing the regenerated material in the pressure vessel, supplying air into the pressure vessel to dry the washed regenerated material.

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