WO2020059036A1 - Procédé de retrait de cendres et système de retrait de cendres pour dispositif de traitement d'incinération par gazéification par distillation sèche - Google Patents

Procédé de retrait de cendres et système de retrait de cendres pour dispositif de traitement d'incinération par gazéification par distillation sèche Download PDF

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Publication number
WO2020059036A1
WO2020059036A1 PCT/JP2018/034577 JP2018034577W WO2020059036A1 WO 2020059036 A1 WO2020059036 A1 WO 2020059036A1 JP 2018034577 W JP2018034577 W JP 2018034577W WO 2020059036 A1 WO2020059036 A1 WO 2020059036A1
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WO
WIPO (PCT)
Prior art keywords
ash
bottom door
furnace
dry distillation
waste
Prior art date
Application number
PCT/JP2018/034577
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English (en)
Japanese (ja)
Inventor
正元 金子
Original Assignee
株式会社キンセイ産業
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Publication date
Application filed by 株式会社キンセイ産業 filed Critical 株式会社キンセイ産業
Priority to PCT/JP2018/034577 priority Critical patent/WO2020059036A1/fr
Publication of WO2020059036A1 publication Critical patent/WO2020059036A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/24—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a vertical, substantially cylindrical, combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00—Removing ash, clinker, or slag from combustion chambers
    • F23J1/02—Apparatus for removing ash, clinker, or slag from ash-pits, e.g. by employing trucks or conveyors, by employing suction devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00—Removing ash, clinker, or slag from combustion chambers
    • F23J1/06—Mechanically-operated devices, e.g. clinker pushers

Definitions

  • the present invention relates to an ash removal method and an ash removal system for a dry distillation gasification and incineration plant.
  • the dry distillation gasification and incineration treatment apparatus is of a batch type (batch type)
  • the waste stored in the dry distillation furnace is incinerated to become incinerated, the next waste disposal is performed.
  • the ash out of the distillation furnace it is necessary to take the ash out of the distillation furnace.
  • the operation of taking out the ash out of the dry distillation furnace is referred to as “ashing”.
  • a bottom door is provided that allows the bottom to be opened and closed, and the ash is lowered by lowering the bottom door, and the ash deposited on the bottom door is manually dispensed. It is done by.
  • the present invention provides a dry distillation gasifier that can automatically perform ash removal in a short time without scattering ash when lowering the bottom door of the dry distillation furnace and without relying on human power. It is an object of the present invention to provide an ash extraction method and an ash extraction system for an incineration treatment device.
  • the ash removal method of the dry distillation gasification and incineration apparatus of the present invention is characterized in that a part of the stored waste is burnt while the remaining heat of the waste is distilled and burnt by the combustion heat.
  • a ash removal method for a dry distillation gasification and incineration apparatus comprising a dry distillation furnace for generating gas and a combustion furnace for burning combustible gas introduced from the dry distillation furnace, wherein all of the waste in the dry distillation furnace is removed.
  • the ash removal method of the dry distillation gasification and incineration treatment device of the present invention comprises: a dry distillation furnace that burns a part of the stored waste and dry-burns the remainder of the waste by the combustion heat to generate a combustible gas;
  • a ash extraction system for a dry distillation gasification and incineration apparatus comprising: a combustion furnace for burning flammable gas introduced from the dry distillation furnace, wherein the bottom door is provided at the bottom of the dry distillation furnace and the bottom can be opened and closed.
  • a surfactant aqueous solution spraying means for spraying an aqueous solution of a surfactant on the ash of the waste, which is provided on the bottom of the still, and moves up and down the bottom with respect to the bottom of the still.
  • Bottom door elevating means for moving the bottom door lowered from the bottom of the dry distillation furnace by the bottom door elevating means to move the ash deposited on the bottom door from one side to the other side.
  • Ash discharging means for discharging from the top of the door; and
  • An incineration container for accommodating the incinerated matter discharged from above, and a bottom door which is moved from one side of the bottom door from which the incinerated matter is dispensed by the incinerated matter discharging means to the other side, and And a cleaning means for cleaning the ash remaining on the ash removal system.
  • the ash extraction system of the dry distillation gasification and incineration treatment apparatus of the present invention is used to take out the ash ashed in the dry distillation furnace of the dry distillation gasification and incineration treatment equipment from the dry distillation furnace.
  • the ash removal system of the dry distillation gasification and incineration treatment device of the present invention is characterized in that, if all of the waste is incinerated and turned into incineration, first, the surfactant aqueous solution spraying means deposits on the bottom door. An aqueous solution of a surfactant is sprayed on the ash. Since the aqueous solution contains a surfactant, the aqueous solution can penetrate from the surface of the ash to the surface of the bottom door, and the ash can contain moisture.
  • the bottom door is lowered below the bottom of the still by the lifting means.
  • the ash is deposited on the bottom door, but since the ash contains moisture as described above, it is possible to prevent the ash from scattering.
  • the ash discharging means moves the ash deposited on the bottom door from above the bottom door by moving from one side of the bottom door to the other side. Dispense to the ash containing means provided below.
  • the cleaning means moves from one side of the bottom door from which the ash has been dispensed by the ash dispensing means to the other side, and cleans the ash remaining on the bottom door. This completes the ash extraction.
  • the bottom door is raised by the lifting / lowering means toward the bottom of the distillation furnace, and the bottom of the distillation furnace is closed, so that the bottom door is used for the next dry distillation gasification. Waste can be input.
  • the ash extraction system of the dry distillation gasification and incineration treatment device of the present invention the ash is not scattered when the bottom door of the dry distillation furnace is lowered, and the automatic ash removal is performed without relying on human power for a short time. Ashing can be done at home.
  • the ash removal system of the dry distillation gasification and incineration treatment device comprises a pair of one ash disposed on both sides of the bottom door moved downward from the bottom of the dry distillation furnace by the bottom door elevating means.
  • the ash removal system of the dry distillation gasification and incineration treatment device of the present invention since the ash discharging means and the cleaning means are mounted on the frame, the frame is moved along the rail member to the bottom door. By moving from one side to the other side, the ash dispensing means and the cleaning means can be moved from one side of the bottom door to the other side.
  • the ash removal system of the dry distillation gasification and incineration treatment device of the present invention further includes a drive unit that allows the ash discharge unit to move forward and backward with respect to the frame.
  • the ash removal system of the dry distillation gasification and incineration treatment device of the present invention the ash deposited on the bottom door is removed by advancing the ash discharge means with respect to the frame by the driving means. The ash can be collected at the center of the bottom door, and the ash can be easily discharged from the bottom door.
  • the cleaning means includes a rotating brush.
  • the cleaning means includes the rotating brush, so that the ash remaining on the bottom door can be easily cleaned by the rotating brush.
  • the ash extraction system of the dry distillation gasification and incineration treatment apparatus of the present invention further includes a waste input means for inputting waste into the dry distillation furnace, the bottom of which is closed by the bottom door.
  • a waste input means for inputting waste into the dry distillation furnace, the bottom of which is closed by the bottom door.
  • the waste removal system of the dry gasification and incineration treatment apparatus of the present invention by providing the waste charging means, after the completion of the ash removal, the next dry distillation gas is supplied to the dry distillation furnace whose bottom is closed by the bottom door. Waste used for chemical conversion can be input.
  • FIG. 1 is a system configuration diagram showing a configuration of a dry distillation gasification and incineration apparatus used in the present invention.
  • BRIEF DESCRIPTION OF THE DRAWINGS Explanatory sectional drawing which shows the structure of the ash removal system of the dry distillation gasification incineration processing apparatus of this invention.
  • the top view which shows the structure of the waste discharge means and the cleaning means in the ash removal system of the dry distillation gasification incineration processing apparatus of this invention.
  • the ash extraction system of the present embodiment can be applied to, for example, a dry gasification and incineration apparatus 1 having the configuration shown in FIG.
  • the dry distillation gasification and incineration apparatus 1 stores waste A such as waste tires, and performs dry distillation gasification and incineration of the dry distillation furnaces 2a and 2b, and gas passages 3a and 3b in the dry distillation furnaces 2a and 2b. And a combustion furnace 4 connected thereto via the
  • Input ports 6a and 6b having openable input doors 5a and 5b, respectively, are formed on the upper surfaces of the distillation furnaces 2a and 2b, and the waste A can be input into the distillation furnaces 2a and 2b from the input ports 6a and 6b. It has been.
  • the lower portions of the stills 2a, 2b are openable and closable bottom doors 7a, 7b. When the charging doors 5a, 5b and the bottom doors 7a, 7b are closed, the interiors of the distillation furnaces 2a, 2b are substantially shut off from the outside.
  • Vacancies 8a, 8b are formed below the bottom doors 7a, 7b and are isolated from the interior of the dry distillation furnaces 2a, 2b.
  • the vacancies 8a, 8b are provided with a plurality of supply chambers provided in the bottom doors 7a, 7b. It communicates with the inside of the stills 2a, 2b through the air nozzles 9a, 9b.
  • Drying oxygen supply passages 10a and 10b are connected to the empty chambers 8a and 8b at the lower portions of the dry distillation furnaces 2a and 2b, respectively.
  • the dry distillation oxygen supply passages 10a and 10b are connected via an oxygen supply passage 11 by a pushing fan or the like. It is connected to the configured oxygen supply source 12.
  • Control valves 13a and 13b are provided in the dry oxygen supply passages 10a and 10b, respectively, and the opening of the control valves 13a and 13b is controlled by valve drivers 14a and 14b.
  • the valve drivers 14a and 14b are controlled by a control device 15 configured by an electronic circuit including a CPU and the like.
  • ignition devices 16a and 16b for igniting the waste A stored in the distillation furnaces 2a and 2b are mounted below the distillation furnaces 2a and 2b.
  • the ignition devices 16a and 16b are constituted by ignition burners and the like, and supply combustion flame to the waste A by burning fuel supplied from the fuel supply devices 17a and 17b via the fuel supply passages 18a and 18b.
  • the combustion furnace 4 burns a combustible gas mixed with oxygen (air) and a burner unit 19 that mixes combustible gas generated by the dry distillation of the waste A with oxygen (air) necessary for complete combustion thereof.
  • the combustion unit 20 communicates with the burner unit 19 downstream of the burner unit 19.
  • Gas passages 3a and 3b are connected to the upstream side of the burner section 19 through dampers 21a and 21b, respectively, and the combustible gas generated by the dry distillation of the waste A in the dry distillation furnaces 2a and 2b passes through the gas passages 3a and 3b. It is introduced into the burner unit 19 through the.
  • An empty space (not shown) is formed in the outer peripheral portion of the burner portion 19 and is isolated from the inside thereof.
  • the empty space is formed by a plurality of nozzle holes (not shown) formed in the inner peripheral portion of the burner portion 19. ) Communicates with the inside of the burner 19.
  • a combustion oxygen supply passage 22 branched from the oxygen supply passage 11 is connected to the vacant space.
  • a control valve 23 is provided in the combustion oxygen supply passage 22, and the opening degree of the control valve 23 is controlled by a valve driver 24.
  • the valve driver 24 is controlled by the control device 15.
  • a combustion device 25 is mounted on the upstream side of the burner section 19.
  • the combustion device 25 is configured by an ignition burner or the like, and ignites the combustible gas introduced into the burner unit 19 by burning fuel supplied from a fuel supply device 26 via a fuel supply path 27, or a combustion furnace.
  • Heat 4 is configured by an ignition burner or the like, and ignites the combustible gas introduced into the burner unit 19 by burning fuel supplied from a fuel supply device 26 via a fuel supply path 27, or a combustion furnace.
  • a hot water boiler 28 that is heated by the combustion exhaust gas burned in the combustion furnace 4 is attached downstream of the combustion unit 20.
  • a duct 29a for discharging the combustion exhaust cooled by the hot water boiler 28 is provided on the outlet side of the hot water boiler 28.
  • the duct 29a is connected to the upper end of the air-cooled heat exchanger 31 via an on-off valve 30.
  • the combustion exhaust gas cooled by the air-cooled heat exchanger 31 is taken out by a duct 29 b connected to a lower portion of the air-cooled heat exchanger 31 via an on-off valve 32.
  • a duct 29c branches off from the duct 29a on the upstream side of the on-off valve 30, and the duct 29c is connected to the upper end of the quenching tower 34 via the on-off valve 33.
  • the quenching tower 34 includes a spray 35 for spraying and cooling the combustion exhaust gas introduced from the duct 29c.
  • the spray 35 is a water supply device (not shown) for supplying cooling water and an air compressor (not shown). It is connected to the.
  • the combustion exhaust gas cooled by the quenching tower 34 is taken out by a duct 29d connected to a lower part of the quenching tower 34 via an on-off valve 36.
  • the duct 29d joins the duct 29b on the downstream side of the on-off valves 32 and 36.
  • the duct 29b is connected to one end of the bag filter 37, and slaked lime and activated carbon supplied from the chemical silo 38 are mixed with the combustion exhaust gas introduced from the duct 29b into the bag filter 37 to perform desulfurization and deodorization.
  • a duct 29e is connected to the other end of the bag filter 37, and the duct 29e is connected to a chimney 40 via an induction fan 39 for inducing combustion exhaust gas in the combustion furnace 4. As a result, the combustion exhaust gas flowing through the duct 29e is released from the chimney 40 into the atmosphere.
  • a duct 29f for discharging combustion exhaust when the hot water boiler 28 is not used is provided downstream of the combustion furnace 4, and the duct 29f is connected to a duct 29a via an on-off valve 41.
  • the input door 5a of the dry distillation furnace 2a is opened with the bottom door 7a closed, and waste such as waste tires is input through the input port 6a. A is charged into the still 2a.
  • the input door 5a is closed and the inside of the distillation furnace 2a is closed.
  • the combustion device 25 of the combustion furnace 4 is operated to start the preheating of the combustion furnace 4.
  • the valve driver 14a is driven by the control device 15, and the opening Va of the control valve 13a becomes a predetermined opening, for example, 25%. Then, the supply of oxygen (air) to the distillation furnace 2a is started.
  • the controller 15 detects that the input of the waste A into the distillation furnace 2a is completed, that the waste A is stored in the distillation furnace 2a, and that the damper 21a is open,
  • the ignition device 16a of the distillation furnace 2a is operated to ignite the waste A, and the partial combustion of the waste A is started.
  • the valve driver 14a is controlled by the control device 15, and the opening Va of the control valve 13a is increased stepwise. Accordingly, the partial combustion of the waste A in the distillation furnace 2a gradually expands and stabilizes, and a grate is formed at the bottom of the waste A. When the grate is formed, the igniter 16a is stopped, and the heat of the partial combustion of the waste A starts the dry distillation of the other part of the waste A, and the generation of the flammable gas starts. Is introduced into the burner section 19 via the gas passage 3a.
  • the valve driver 24 is driven by the control device 15 to set the opening of the control valve 23 to a predetermined opening, and the oxygen is supplied from the oxygen supply source 12 through the oxygen supply path 11 and the combustion oxygen supply path 22. (Air) is supplied. Then, the combustible gas is mixed with oxygen (air) supplied through the combustion oxygen supply passage 22, ignited by the combustion flame supplied from the combustion device 25, and the combustion in the combustion unit 20 is started. .
  • the temperature in the combustion furnace 4 gradually increases, and the first temperature (hereinafter referred to as a first temperature) set in advance. , For example, 930 ° C.).
  • the combustion device 25 When the temperature in the combustion furnace 4 reaches the first set temperature due to the combustion of the combustible gas, the combustion device 25 is stopped, and the control device 15 determines the temperature in the combustion furnace 4 by the combustion of the combustible gas.
  • the opening Va of the control valve 13a is adjusted so as to maintain the first set temperature, and the generation of the flammable gas in the dry distillation furnace 2a is feedback-controlled.
  • the combustion exhaust gas generated by the combustion of the combustible gas in the combustion section 20 is cooled by the hot water boiler 28 and discharged to the duct 29a, or discharged to the duct 29a via the duct 29f without passing through the hot water boiler 28. Is done.
  • the combustion exhaust gas discharged to the duct 29a passes through the hot water boiler 28, the combustion exhaust gas is introduced from the duct 29a to the air-cooled heat exchanger 31, further cooled, and discharged to the duct 29b.
  • the air does not pass through the hot water boiler 28, it is introduced from the duct 29c into the quenching tower 34, cooled, and discharged to the duct 29b via the duct 29d.
  • the combustion exhaust gas discharged to the duct 29b is mixed with slaked lime and activated carbon supplied from the chemical silo 38, desulfurized and deodorized, introduced into the bag filter 37 to remove ash, dust, and the like. It is discharged to the duct 29e and further discharged from the chimney 40 to the atmosphere.
  • the control device 15 sets the opening of the control valve 13a to a predetermined opening through the valve driver 14a. For example, it is maintained at 70%, and the waste A in the dry distillation furnace 2a is ashed. Then, after the waste A is incinerated, the control device 15 decreases the opening degree of the control valve 13a at a predetermined rate via the valve driver 14a until the control valve 13a is closed.
  • the bottom door 7a is lowered to discharge the ash (ashing), and then the bottom door 7a is opened. Return to the original position. Then, the charging door 5a is opened, and waste A such as waste tires is charged into the dry distillation furnace 2a from the charging port 6a to prepare the next processing.
  • the distillation furnace 2a has exactly the same configuration as the distillation furnace 2a and operates in exactly the same manner.
  • the ash extraction system 51 of the present embodiment includes a bottom door 7a provided at the bottom of the dry distillation furnace 2a, a surfactant aqueous solution spray nozzle 52 as a surfactant aqueous solution spraying means provided in the dry distillation furnace 2a, and a bottom door. And a cylinder 53 as a bottom door elevating means for elevating and lowering 7a.
  • the bottom door 7a is provided with a square tray 54 extending outward from the outer edge of the bottom door 7a in order to prevent the ash B from falling around when the bottom door 7a is lowered by the cylinder 53.
  • the receiving tray 54 is provided so as to be flush with the upper surface of the bottom door 7a (the surface serving as the bottom of the distillation furnace 2a), and has a pair of side wall members 54a and 54b on opposite sides of a square.
  • the side wall members 54a and 54b are provided at positions outside the distillation furnace 2a so as not to interfere with the distillation furnace 2a when the bottom door 7a closes the bottom of the distillation furnace 2a.
  • the cylinder 53 is, for example, a hydraulic cylinder.
  • four cylinders 53 are disposed on the base 53a so as to support the bottom door 7a at a plurality of locations.
  • the ash extraction system 51 may include a pantograph jack or the like instead of the cylinder 53 as the bottom door lifting / lowering means.
  • the bottom door 7a when the bottom door 7a is lowered to a predetermined ash position (hereinafter referred to as an ash stage) by the cylinder 53, one ash removal system 51 of this embodiment is provided on each side of the bottom door 7a.
  • the bottom door 7a includes a pair of rail members 55, 56 disposed therein and a frame 57 movably provided from one side of the bottom door 7a to the other side along the rail members 55, 56.
  • the bottom door 7a In the ash removal stage, the bottom door 7a is configured such that the side wall members 54a and 54b of the tray 54 are accommodated inside the rail members 55 and 56, and are parallel to the rail members 55 and 56.
  • the rail members 55 and 56 have an etch steel shape in which an upper plate member 55a and a bottom plate member 55b are connected by a column member 55c, as shown in FIG. 2 as an example of the rail member 55, and the lower surface of the bottom plate member 55b. Is provided with a rack 58.
  • the frame body 57 includes sliding members 57a and 57b that slide along the rail members 55 and 56, a plurality of connecting members 57c that connect the sliding members 57a and 57b thereunder, and a sliding member 57a or 57b. And a reinforcing member 57d provided obliquely from the sliding member 57b to the connecting member 57c.
  • the sliding members 57a and 57b include a pinion 59 that meshes with the rack 58 and a roller 60 that is rotatably contacted with the upper surface of the bottom plate member 55b, as shown in FIG. 2 as an example of the sliding member 57a. , The pinion 59 and the roller 60 sandwich and hold the bottom plate member 55b.
  • the pinion 59 is provided on a rotating shaft 59a that is driven to rotate by a motor (not shown), and is disposed at the center of the sliding members 57a and 57b.
  • the rollers 60 are disposed at the front and rear of the sliding members 57a and 57b.
  • the frame body 57 includes two cylinders 61 mounted diagonally to the connecting member 57c with respect to the direction in which the frame body 57 moves forward and backward.
  • a soil discharge plate 62 is attached as ash discharging means for discharging ash.
  • the earth discharging plate 62 is movable forward and backward by a cylinder 61.
  • the frame body 57 is provided with a rotating brush 63 as cleaning means for cleaning the incinerated matter B remaining on the bottom door 7a after the incinerated matter B is dispensed by the earthing out sheet 62, behind the earthing sheet 62.
  • a rotating brush 63 as cleaning means for cleaning the incinerated matter B remaining on the bottom door 7a after the incinerated matter B is dispensed by the earthing out sheet 62, behind the earthing sheet 62.
  • scrapers 64a and 64b made of rubber plates.
  • the rotating brush 63 is suspended from the sliding members 57a and 57b by the arm member 65, and the scrapers 64a and 64b are fixed to the connecting members 57c before and after the rotating brush 63 at a predetermined angle.
  • the earth removal plate 62, the rotating brush 63, and the scrapers 64a, 64b are all located between the side wall members 54a, 54b of the tray 54 and are located between the tray 54 and the bottom door 7a. It is adapted to operate along the upper surface. Note that the discharging plate 62 may be fixed at a predetermined position without using the cylinder 61.
  • the ash extraction system 51 of the present embodiment is disposed below the bottom door 7a lowered by the cylinder 53, and is a container as an ash storage means for storing the ash B discharged from the bottom door 7a. 66, and a hopper 66a for guiding the ash B to the container 66.
  • the control device 15 determines that the incineration of the waste A has been completed in the dry distillation furnace 2a, and deposits the waste water on the bottom door 7a by the surfactant aqueous solution spray nozzle 52.
  • a surfactant aqueous solution is sprayed from above the incinerated material B.
  • the surfactant aqueous solution contains, for example, a dishwashing detergent at a concentration of 40% by mass, and foams when sprayed from the surfactant aqueous solution spray nozzle 52 to envelop the incinerated B with the foam F while maintaining the surfactant.
  • the agent By the action of the agent, it penetrates from the surface of the ash B to the surface of the bottom door 7a, and the ash B can contain moisture.
  • the bottom door 7a is then lowered from the bottom of the distillation furnace 2a to the ash stage by the cylinder 53 as shown in FIG.
  • the ash B contains water as described above, while the surface is covered with the surfactant foam F, so that the ash can be prevented from being scattered. Further, since the ash B scattered from the bottom door 7a is stored in the tray 54, it can be prevented from falling to the surroundings.
  • the ash removal stage is provided with a frame 57 between rail members 55 and 56 arranged on both sides of the bottom door 7a.
  • FIG. 57 stands by at a standby position on one side of the bottom door 7a.
  • the pinion 59 is driven to rotate by the motor (not shown) via the rotating shaft 59a.
  • the frame 57 moves forward along the rail members 55 and 56 and moves from the standby position to the vicinity of the edge on one side of the bottom door 7a. .
  • FIG. 3 shows the above state.
  • the pinion 59 is driven to rotate by a motor (not shown) via the rotating shaft 59a to further advance the frame 57. Then, the waste B is discharged from the bottom door 7a to the container 66 via the hopper 66a shown in FIG. At this time, a small amount of the waste B is left on the bottom door 7a, for example, over the top edge of the earth discharging plate 62, but the frame 57 is provided behind the rotating brush 63 and the rotating brush 63. Since the scrapers 64a and 64b are provided, the waste B remaining on the bottom door 7a can be discharged to the container 66 by the rotating brush 63 and the scrapers 64a and 64b, and the surface of the bottom door 7a can be cleaned.
  • the earth discharging plate 62 is returned to the initial state, and the pinion 59 is rotationally driven in the reverse direction by the motor (not shown) via the rotating shaft 59a.
  • the body 57 is retracted and returned to the standby position.
  • the bottom door 7a is raised by the cylinder 53, the bottom of the distillation furnace 2a is closed by the bottom door 7a, and the ashing is completed.
  • ash extraction can be automatically performed within a short time without relying on human power.
  • the ash extraction system 51 of the present embodiment may further include waste input means for inputting the waste A into the dry distillation furnace 2a whose bottom is closed by the bottom door 7a.
  • waste input means for inputting the waste A into the dry distillation furnace 2a whose bottom is closed by the bottom door 7a.
  • the waste A used for the next dry distillation gasification treatment is charged by the waste charging means into the dry distillation furnace 2a whose bottom is closed by the bottom door 7a.
  • the frame 57 is provided with the rotating brush 63 and the scrapers 64a and 64b, and the rotating brush 63 and the scrapers 64a and 64b move in synchronization with the frame 57.
  • the rotating brush 63 and the scrapers 64a and 64b move in synchronization with the frame 57.
  • the rotating brush 63 and the scrapers 64a and 64b are independent of the frame 57. You may make it move.

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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

La présente invention concerne un procédé de retrait de cendres et un système de retrait de cendres pour un dispositif de traitement d'incinération par gazéification par distillation sèche, dans lequel l'élimination de cendres peut être effectuée rapidement et automatiquement, sans permettre la diffusion de substances incinérées. Un système de retrait de cendres 51 est utilisé pour un dispositif de traitement d'incinération par gazéification par distillation sèche 1 comprenant un four de distillation sèche 2a et un four de combustion 4 qui brûle un gaz inflammable. Le système de retrait de cendres comprend : une porte inférieure 7a disposée au fond du four de distillation sèche 2a ; une buse de pulvérisation de solution aqueuse de tensioactif 52 qui pulvérise une solution aqueuse de tensioactif sur une substance incinérée B ; un cylindre 53 qui élève/abaisse la porte inférieure 7a ; une lame 62 qui retire la substance incinérée B ; un récipient 66 qui loge la substance incinérée B qui a été retirée ; et une brosse rotative 63 qui balaye la substance incinérée B laissée sur la porte inférieure 7a.
PCT/JP2018/034577 2018-09-19 2018-09-19 Procédé de retrait de cendres et système de retrait de cendres pour dispositif de traitement d'incinération par gazéification par distillation sèche WO2020059036A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/034577 WO2020059036A1 (fr) 2018-09-19 2018-09-19 Procédé de retrait de cendres et système de retrait de cendres pour dispositif de traitement d'incinération par gazéification par distillation sèche

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/034577 WO2020059036A1 (fr) 2018-09-19 2018-09-19 Procédé de retrait de cendres et système de retrait de cendres pour dispositif de traitement d'incinération par gazéification par distillation sèche

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WO2020059036A1 true WO2020059036A1 (fr) 2020-03-26

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11118134A (ja) * 1997-10-16 1999-04-30 Okawa Toransuteiru Kk 廃棄物の焼却処理装置
JP2005024211A (ja) * 2003-07-01 2005-01-27 Arashima Toshiro 廃棄物ガス化燃焼システム
JP2016050710A (ja) * 2014-08-29 2016-04-11 株式会社キンセイ産業 廃棄物の乾溜ガス化焼却処理方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11118134A (ja) * 1997-10-16 1999-04-30 Okawa Toransuteiru Kk 廃棄物の焼却処理装置
JP2005024211A (ja) * 2003-07-01 2005-01-27 Arashima Toshiro 廃棄物ガス化燃焼システム
JP2016050710A (ja) * 2014-08-29 2016-04-11 株式会社キンセイ産業 廃棄物の乾溜ガス化焼却処理方法

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