WO2019156221A1 - Dispositif de poussée de cendres - Google Patents

Dispositif de poussée de cendres Download PDF

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Publication number
WO2019156221A1
WO2019156221A1 PCT/JP2019/004662 JP2019004662W WO2019156221A1 WO 2019156221 A1 WO2019156221 A1 WO 2019156221A1 JP 2019004662 W JP2019004662 W JP 2019004662W WO 2019156221 A1 WO2019156221 A1 WO 2019156221A1
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WO
WIPO (PCT)
Prior art keywords
ash
liquid
tank
scraper
liquid level
Prior art date
Application number
PCT/JP2019/004662
Other languages
English (en)
Japanese (ja)
Inventor
雄貴 牛尾
貴宏 小田野
大樹 牛込
克博 ▲高▼橋
Original Assignee
三菱重工環境・化学エンジニアリング株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱重工環境・化学エンジニアリング株式会社 filed Critical 三菱重工環境・化学エンジニアリング株式会社
Priority to RU2020124975A priority Critical patent/RU2744426C1/ru
Priority to CN201980009032.9A priority patent/CN111630322A/zh
Priority to EP19750979.7A priority patent/EP3730839A4/fr
Publication of WO2019156221A1 publication Critical patent/WO2019156221A1/fr

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    • 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
    • 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
    • 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 
    • F23J2700/00—Ash removal, handling and treatment means; Ash and slag handling in pulverulent fuel furnaces; Ash removal means for incinerators
    • F23J2700/003—Ash removal means for incinerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/01006—Airlock sealing associated with ash removal means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/01009—Controls related to ash or slag extraction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/01021—Removing ashes from the ash pit using reciprocating means, e.g. pushers

Definitions

  • the present invention relates to an ash extrusion apparatus.
  • This application claims priority on Japanese Patent Application No. 2018-022206 filed in Japan on February 9, 2018, the contents of which are incorporated herein by reference.
  • a garbage incinerator for example, a stoker furnace
  • main ash generated by burning garbage in a grate is dropped from an ash chute to an ash extrusion device and cooled with a liquid (for example, water) in the ash extrusion device.
  • a liquid for example, water
  • This liquid also has the function of preventing air from entering the stalker furnace from the ash extruder.
  • the ash extrusion device when the scraper is driven to push out the ash, the liquid is discharged together with the ash from the discharge port. Accordingly, in order to keep the liquid level in the apparatus at a predetermined liquid level, it is necessary to supply a liquid such as water into the apparatus.
  • Patent Document 1 discloses an ash extrusion apparatus that includes a mechanism for circulating the liquid in the ash extrusion apparatus and can reduce the amount of liquid to be newly supplied.
  • Patent Document 1 describes a technique for removing ash near the discharge port with a cutter in order to enable continuous operation of the ash extrusion apparatus.
  • Patent Document 2 it is necessary to separately arrange a special mechanism such as a cutter, which increases costs.
  • An object of the present invention is to provide an ash extrusion device that can easily continue the operation of the ash extrusion device at low cost.
  • the ash extrusion apparatus includes an ash inlet into which ash incinerated in a waste incinerator is introduced, and an inclined surface that is connected to the lower side of the ash inlet and has an upstream slope on the downstream side
  • a drive unit that is driven by the scraper, a discharge port that is connected to the inclined surface and from which the ash pushed out by the scraper is discharged, and is opposite to the discharge port as viewed from the scraper, with one end being the ash cooling unit
  • the return ash accumulated in the ash cooling tank is discharged to the float tank via the first communication part, so that adverse effects of the return ash on the drive unit can be reduced. Further, when the torque of the drive unit becomes a predetermined value or more, that is, when the ash is solidified and the ash is difficult to be discharged, the liquid is supplied to the ash near the discharge port, so that the solidified ash Is softened. With the above effects, it is possible to easily continue the operation of the ash extrusion apparatus at a low cost without separately arranging a special mechanism such as a cutter.
  • the first liquid supply device is disposed above the discharge port and is disposed in a liquid draining region of the ash cooling tank.
  • the ash can be efficiently softened by spraying the liquid to the liquid draining region where the solidified ash is easily deposited.
  • the scraper is connected to a scraper body that pushes out the ash, and the scraper body, And an auxiliary scraper for guiding to the first series passage.
  • the return ash that adversely affects the scraper and the drive unit can be positively discharged.
  • the ash extrusion apparatus in the ash extrusion apparatus according to the third aspect, further comprising an openable / closable opening lid provided above the float tank, and opening the opening lid, The inside of the float tank can be cleaned.
  • the first communication part is a pipe that communicates the ash cooling tank and the float tank. Yes, the ash cooling tank and the float tank communicate with each other only by the pipe.
  • the liquid level of the ash cooling tank and the liquid level of the float tank are physically separated because the ash cooling tank and the float tank communicate with each other only through the first communication section.
  • the liquid level of the ash cooling tank and the liquid level of the float tank are formed continuously.
  • the second communication part is further provided.
  • the return ash accumulated in the ash cooling tank is discharged to the float tank via the first communication part, it is possible to reduce the adverse effect of the return ash on the drive unit. Further, when the torque of the drive unit becomes a predetermined value or more, that is, when the ash is solidified and the ash is difficult to be discharged, the liquid is supplied to the ash near the discharge port, so that the solidified ash Is softened. With the above effects, it is possible to easily continue the operation of the ash extrusion apparatus at a low cost without separately arranging a special mechanism such as a cutter.
  • the ash extrusion apparatus is provided in a waste incinerator (for example, a stoker furnace) that incinerates garbage.
  • the ash extrusion device is a device that cools ash produced by incineration of garbage in a garbage incinerator and then discharges the ash to a conveyor, for example.
  • the ash extrusion apparatus 1 of the present embodiment is introduced into an ash inlet 2 into which ash A1 is introduced, an ash cooling tank 3 connected to the ash inlet 2, and an ash cooling tank 3.
  • the drive unit 5 that drives the scraper 4 so as to be able to advance and retreat, the discharge port 6 that discharges the ash A2 pushed out by the scraper 4, and one end 7a are connected to the ash cooling tank 3.
  • a communication pipe 7 (first communication part), a float tank 8 connected to the other end 7 b of the communication pipe 7, and a control device 9 are provided.
  • the ash inlet 2 is a rectangular tube that is connected to the ash chute of the waste incinerator and extends along the vertical direction.
  • the shape of the ash inlet 2 is not limited to this.
  • the ash cooling tank 3 is a tank connected to the lower side of the ash inlet 2 and is a tank for cooling the ash A2 introduced through the ash inlet 2.
  • the ash cooling tank 3 is filled with a liquid (for example, water).
  • the height of the liquid level W of the liquid can be appropriately set according to the shape of the ash cooling tank 3.
  • the height of the liquid surface W of the present embodiment is set to be higher than the lower end 2a of the ash introduction port 2.
  • the height of the liquid level W is adjusted by the control device 9.
  • the bottom surface 10 of the ash cooling tank 3 is formed so that the position directly below the ash inlet 2 is the lowest.
  • the bottom surface 10 of the ash cooling tank 3 has a first inclined surface 11 that is formed so as to gradually increase from directly below the ash inlet 2 toward the first direction D1 in the horizontal direction.
  • the first direction D1 is a direction toward the discharge direction (downstream side) of the ash A2. That is, the first inclined surface 11 is formed so as to be inclined upward in the ash A discharge direction (downstream side).
  • the discharge port 6 is connected to the first inclined surface 11 and is a rectangular opening through which the ash A2 pushed out by the scraper 4 is discharged.
  • the discharge port 6 is formed such that the lower end 6a of the discharge port 6 is higher than the liquid level W of the liquid.
  • a liquid drain region R is provided between the lower end 6a of the discharge port 6 and the liquid.
  • the liquid draining region R is an upper part of the first inclined surface 11 and is higher than the liquid level W of the liquid.
  • the ash A2a deposited in the liquid draining region R is not immersed in the liquid.
  • a conveyor C is disposed below the discharge port 6. The conveyor C carries out the ash A2 discharged from the discharge port 6 to a subsequent apparatus.
  • the bottom surface 10 of the ash cooling tank 3 has a second inclined surface 12 formed so as to gradually increase from directly below the ash inlet 2 toward the second direction D2 opposite to the first direction D1. Yes.
  • a mechanism for pushing out the ash A2 such as the scraper 4 and the drive unit 5 is disposed above the second inclined surface 12.
  • the scraper 4 is a device that is arranged on the second direction D2 side with respect to the ash inlet 2 and pushes out the ash A2 stored in the ash cooling tank 3.
  • the scraper 4 is connected to a first central axis S1 orthogonal to the first direction D1 and extending in the horizontal direction.
  • the scraper 4 is pivoted about the second central axis S2 at a pivot arm 14 pivotable about the first central axis S1 and an end of the pivot arm 14 opposite to the first central axis S1.
  • a scraper body 15 that is movably connected.
  • the scraper body 15 is arranged so that the tip thereof is in contact with the bottom surface 10 of the ash cooling tank 3 in the width direction WD (horizontal direction orthogonal to the first direction D1, see FIG. 2).
  • the rotating arm 14 rotates in the first rotation direction R1
  • the scraper body 15 pushes the ash A2 downstream.
  • the turning arm 14 is turned in the second rotation direction R2 opposite to the first rotation direction R1
  • the tip of the scraper body 15 is retreated in the second direction D2.
  • the scraper main body 15 is in the most retracted state, and the tip of the scraper main body 15 is located directly below the ash inlet 2.
  • a two-dot chain line in FIG. 1 the scraper main body 15 is in the most advanced state, and the tip of the scraper main body 15 is positioned downstream of the ash inlet 2 directly below.
  • the scraper 4 has an auxiliary scraper 16 that is swingably connected to the scraper body 15.
  • the auxiliary scraper 16 is connected to the scraper main body 15 via the third central axis S3.
  • the third central axis S3 is disposed near the second central axis S2 of the scraper body 15.
  • the tip of the auxiliary scraper 16 is in contact with the second inclined surface 12 of the bottom surface 10 of the ash cooling tank 3 over the width direction WD.
  • the auxiliary scraper 16 moves on the bottom surface 10 as the scraper body 15 moves.
  • the drive unit 5 is, for example, an electric motor.
  • the drive unit 5 rotates the first central axis S1 in the first rotation direction R1 or in the second rotation direction R2.
  • the drive unit 5 and the control device 9 are electrically connected. Information relating to the torque of the drive unit 5 is input to the control device 9.
  • the torque of the drive unit 5 increases as the load on the scraper 4 driven by the drive unit 5 increases.
  • the communication pipe 7 is formed such that one end 7a, which is a connection portion with the ash cooling tank 3, is connected to the second inclined surface 12 of the bottom surface 10 of the ash cooling tank 3, and the other end 7b is lower than the one end 7a. It is a tubular member.
  • the communication pipe 7 is disposed on the second direction D2 side with respect to the scraper 4. That is, the communication pipe 7 is disposed on the opposite side of the discharge port 6 with the scraper 4 as the center.
  • One end 7 a of the communication pipe 7 is connected to the lower side than the liquid level W.
  • the float tank 8 is a container connected to the other end 7 b of the communication pipe 7.
  • the float tank 8 is arranged so that the liquid level W of the liquid is formed in the internal space of the float tank 8.
  • the upper wall 8a of the float tank 8 is formed to be higher than the liquid level W.
  • the liquid moves between the ash cooling tank 3 and the float tank 8 only through the communication pipe 7.
  • the height of the liquid level W of the ash cooling tank 3 and the height of the liquid level W of the float tank 8 are the same.
  • a float tank discharge pipe 17 for discharging the liquid in the float tank 8 is provided below the float tank 8.
  • a float tank valve 18 is provided in the float tank discharge pipe 17.
  • the float tank valve 18 is a valve that opens and closes the float tank discharge pipe 17.
  • An openable lid 19 that can be opened and closed is provided on the upper wall 8 a of the float tank 8. By opening the opening lid 19, the operator can access the inside of the float tank 8.
  • An overflow liquid receiver 21 is provided inside the float tank 8.
  • the overflow liquid receiver 21 is formed to correspond to the set height of the liquid level W. That is, when the height of the liquid level W becomes higher than the set height, the liquid flows into the overflow liquid receiver 21 and the liquid is discharged to the sedimentation tank 23. No more than that.
  • a drainage pipe 22 is connected to the overflow liquid receiver 21, and a sedimentation tank 23 is provided at the lower end of the drainage pipe 22. The liquid flowing into the overflow liquid receiver 21 is stored in the precipitation tank 23.
  • the float tank 8 is provided with a liquid level gauge 24 for measuring the height of the liquid level W in the float tank 8.
  • the liquid level gauge 24 is electrically connected to the control device 9. The height of the liquid level W measured by the liquid level meter 24 is transmitted to the control device 9.
  • a sedimentation tank discharge pipe 25 for discharging the sediment in the precipitation tank 23 is provided in the lower part of the sedimentation tank 23.
  • a settling tank valve 26 is provided in the settling tank discharge pipe 25.
  • the settling tank valve 26 is a valve that opens and closes the settling tank discharge pipe 25. By opening the sedimentation tank valve 26, the sediment deposited in the sedimentation tank 23 can be discharged.
  • the ash extrusion device 1 has a first liquid supply device 27 that supplies liquid to the vicinity of the discharge port 6. Specifically, the first liquid supply device 27 sprays the liquid onto the ash A2a accumulated in the liquid draining region R of the ash cooling tank 3.
  • the first liquid supply device 27 is provided in the circulating fluid line 29, a circulating fluid injection nozzle 28 disposed above the discharge port 6, a circulating fluid line 29 connecting the circulating fluid injection nozzle 28 and the sedimentation tank 23, and the circulating fluid line 29.
  • a circulation pump 30 for circulating the liquid in the sedimentation tank 23 to the circulation liquid injection nozzle 28.
  • the first liquid supply device 27 Since the liquid stored in the settling tank 23 is the liquid that has flowed into the overflow liquid receiver 21, the first liquid supply device 27 substantially circulates the liquid inside the float tank 8 to the circulating liquid injection nozzle 28. Will be. The liquid can be supplied to the first liquid supply device 27 also from another supply source.
  • the circulating fluid injection nozzle 28 includes a main body portion 31 extending in the width direction, and a plurality of nozzle portions 32 that are formed in the main body portion 31 and spray the liquid WS.
  • the nozzle portion 32 of the circulating fluid injection nozzle 28 is oriented so as to spray the liquid to the liquid draining region R.
  • the circulation pump 30 is electrically connected to the control device 9.
  • the control device 9 can control the circulation pump 30.
  • the circulation pump 30 is operated by the control device 9, the liquid in the settling tank 23 is supplied to the circulation liquid injection nozzle 28 and dispersed on the ash A 2 a accumulated in the liquid draining region R.
  • the ash extrusion apparatus 1 has a second liquid supply apparatus 34 that supplies liquid to the ash cooling tank 3.
  • the second liquid supply device 34 is provided in the liquid tank 35 in which a liquid (for example, water) is stored, an injection nozzle 36 that injects the liquid in the liquid tank 35 into the ash cooling tank 3, and the injection nozzle 36.
  • the electric valve 37 and the control device 9 are electrically connected.
  • the control device 9 can control the electric valve 37. By controlling the electric valve 37 by the control device 9, the liquid in the liquid tank 35 is injected into the ash cooling tank 3 through the injection nozzle 36.
  • the control device 9 controls the second liquid supply device 34 based on the height of the liquid level W measured by the liquid level gauge 24 and supplies a liquid level control unit 92 for supplying the liquid to the ash cooling tank 3.
  • a liquid spraying unit 91 for controlling the first liquid supply device 27 based on the torque of the unit 5 and spraying liquid onto the ash A2a deposited in the liquid draining region R.
  • the liquid level control unit 92 controls to open the electric valve 37 of the second liquid supply device 34 when the height of the liquid level W measured by the liquid level gauge 24 is lowered from a predetermined liquid level, that is, to open the valve. Control.
  • the liquid spraying unit 91 receives information related to torque from the drive unit 5 and performs control for operating the circulation pump 30 when the torque of the drive unit 5 becomes equal to or greater than a predetermined value.
  • the ash A2 charged into the ash cooling tank 3 through the ash inlet 2 is cooled by the liquid.
  • the ash A2 cooled in the ash cooling tank 3 is pushed out in the first direction D1 by the scraper 4 and conveyed to the conveyor C.
  • the liquid inside the ash cooling tank 3 is also discharged along with the ash A2.
  • the liquid level control unit 92 of the control device 9 controls the height of the liquid level W by controlling the second liquid supply device 34 based on the height of the liquid level W measured by the liquid level gauge 24. Specifically, when the liquid is discharged from the discharge port 6 or the float tank discharge pipe 17 and the height of the liquid level W decreases from a predetermined liquid level, the control device 9 controls the second liquid supply device 34.
  • the electric valve 37 is controlled to open, and the liquid in the liquid tank 35 is injected into the ash cooling tank 3 through the injection nozzle 36. Thereafter, when the height of the liquid level W rises to a predetermined liquid level, the control device 9 controls the electric valve 37 to close the valve, and stops injecting liquid from the liquid tank 35.
  • the return ash A3 enters the second inclined surface 12 on the second direction D2 side with respect to the scraper 4.
  • the return ash A3 is ash that enters the second direction D2 side of the scraper 4 from the gap between the scraper 4 and the bottom surface 10 when the scraper 4 is retracted. Since the communication pipe 7 is formed in the ash cooling tank 3 of the ash extrusion apparatus 1 of this embodiment, the return ash A3 is introduced into the float tank 8 through the communication pipe 7.
  • the return ash A3 accumulated in the float tank 8 can be appropriately discharged through the float tank discharge pipe 17 by opening the float tank valve 18.
  • the auxiliary scraper 16 pushes the return ash A3 back toward the first direction D1.
  • the auxiliary scraper 16 guides the return ash A3 to the communication pipe 7. Since the one end 7 a of the communication pipe 7 is inclined above the other end 7 b, the return ash A 3 guided to the communication pipe 7 moves to the float tank 8.
  • the control device 9 operates the circulation pump 30 of the first liquid supply device 27 when the torque of the drive unit 5 becomes larger than a predetermined value. Thereby, the liquid WS is sprayed from the circulating liquid injection nozzle 28, and the ash A2a deposited in the liquid draining region R is softened. Thereafter, when the torque of the drive unit 5 becomes smaller than a predetermined value, the control device 9 stops the circulation pump 30 of the first liquid supply device 27. As a result, the liquid WS from the circulation liquid injection nozzle 28 is stopped. Spraying is stopped.
  • the return ash A3 accumulated on the second inclined surface 12 is discharged to the float tank 8 through the communication pipe 7, so that adverse effects of the return ash A3 on the scraper 4 and the drive unit 5 are suppressed. can do. Therefore, the scraper 4 can be operated smoothly without being disturbed by the return ash A3. Further, by installing the circulating liquid injection nozzle 28 toward the liquid draining region R (in the vicinity of the discharge port 6) where the solidified ash A2a is likely to be deposited, the solidified ash A2a is softened, and the ash carrying capacity is improved. The decrease can be suppressed. In particular, the ash can be efficiently carried out by spraying the liquid to the liquid draining region R where the ash A2a is easily solidified. As described above, the stability of the operation of the ash extrusion device 1 can be improved.
  • the opening lid 19 is provided on the upper wall 8a of the float tank 8, the amount of the return ash A3 accumulated in the float tank 8 can be confirmed.
  • the float ash valve 18 can be opened and the return ash A3 can be discharged while continuing the operation.
  • the liquid level W decreases, but the control device 9 controls the second liquid supply device 34 so that the height of the liquid level W can be raised to a predetermined liquid level and held.
  • the opening lid 19 of the float tank 8 the inside of the communication pipe 7 and the float tank 8 can be easily cleaned.
  • the ash cooling tank 3 and the float tank 8 communicate with each other only through the communication pipe 7, the liquid level W of the ash cooling tank 3 and the liquid level W of the float tank 8 are physically separated. As a result, scum (floating ash) drifting in the vicinity of the liquid surface W of the ash cooling tank 3 is unlikely to enter the float tank 8. For this reason, the risk that the liquid level meter 24 becomes dirty and the liquid level measurement is hindered is reduced.
  • the modified ash cooling tank 3 and float tank 8 include an opening 40 (second communication) formed in a partition wall 39 that partitions the ash cooling tank 3 and the float tank 8 in addition to the communication pipe 7. Part).
  • the opening 40 is formed so that the liquid level W of the ash cooling tank 3 and the liquid level W of the float tank 8 are made continuous.
  • the opening 40 is formed such that the lower end 40 a of the opening 40 is lower than the liquid level W and the upper end 40 b is higher than the liquid level W.
  • the modified ash cooling tank 3 and the float tank 8 communicate with each other not only through the communication pipe 7 but also through the opening 40 formed in the vicinity of the liquid surface W.
  • the 1st liquid supply apparatus 27 of this embodiment is comprised so that the liquid of the sedimentation tank 23 (float tank 8) may be circulated to the circulating liquid injection
  • pouring nozzle 28 it is not restricted to this.
  • a first liquid supply device 27 ⁇ / b> B that circulates the liquid stored in the ash cooling tank 3 to the circulating liquid injection nozzle 28 may be used.
  • the first liquid supply device 27B is controlled by the control device 9.
  • the return ash accumulated in the ash cooling tank is discharged to the float tank via the first communication part, it is possible to reduce the adverse effect of the return ash on the drive unit. Further, when the torque of the drive unit becomes a predetermined value or more, that is, when the ash is solidified and the ash is difficult to be discharged, the liquid is supplied to the ash near the discharge port, so that the solidified ash Is softened. With the above effects, it is possible to easily continue the operation of the ash extrusion apparatus at a low cost without separately arranging a special mechanism such as a cutter.

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

Abstract

L'invention concerne un dispositif (1) de poussée de cendres comprenant une ouverture (1) d'introduction de cendres, un réservoir (3) de refroidissement des cendres, un racleur (4), une unité d'entraînement (5) destinée à entraîner le racleur (4), une ouverture (6) d'évacuation des cendres, une première partie de communication (7) pourvue d'une pente vers le bas à partir du réservoir (3) de refroidissement des cendres, un réservoir (8) à flotteur relié à la première partie de communication (7), une jauge (24) de niveau de liquide, un premier dispositif (27) d'alimentation en liquide servant à alimenter en liquide l'ouverture d'évacuation, un second dispositif (34) d'alimentation en liquide servant à alimenter en liquide le réservoir (3) de refroidissement des cendres, et un dispositif de commande (9) destiné à commander le premier dispositif (27) d'alimentation en liquide et le second dispositif (34) d'alimentation en liquide. Le dispositif de commande (9) permet l'apport de liquide jusqu'à un niveau de liquide prescrit lorsque la surface de liquide baisse, et permet l'apport de liquide à proximité de l'ouverture (6) d'évacuation lorsque le couple est supérieur ou égal à une valeur prescrite.
PCT/JP2019/004662 2018-02-09 2019-02-08 Dispositif de poussée de cendres WO2019156221A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
RU2020124975A RU2744426C1 (ru) 2018-02-09 2019-02-08 Механизм разгрузки золы
CN201980009032.9A CN111630322A (zh) 2018-02-09 2019-02-08 灰推出装置
EP19750979.7A EP3730839A4 (fr) 2018-02-09 2019-02-08 Dispositif de poussée de cendres

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-022206 2018-02-09
JP2018022206A JP6417617B1 (ja) 2018-02-09 2018-02-09 灰押出装置

Publications (1)

Publication Number Publication Date
WO2019156221A1 true WO2019156221A1 (fr) 2019-08-15

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Application Number Title Priority Date Filing Date
PCT/JP2019/004662 WO2019156221A1 (fr) 2018-02-09 2019-02-08 Dispositif de poussée de cendres

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EP (1) EP3730839A4 (fr)
JP (1) JP6417617B1 (fr)
CN (1) CN111630322A (fr)
RU (1) RU2744426C1 (fr)
WO (1) WO2019156221A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111423907A (zh) * 2020-04-03 2020-07-17 重庆秋松环保科技有限公司 热解气化炉自动清渣系统
WO2021157323A1 (fr) * 2020-02-04 2021-08-12 三菱重工環境・化学エンジニアリング株式会社 Dispositif d'extrusion de cendres et procédé de remodelage de dispositif d'extrusion de cendres
WO2021157326A1 (fr) * 2020-02-04 2021-08-12 三菱重工環境・化学エンジニアリング株式会社 Dispositif d'extrusion de cendres et procédé de modification de dispositif d'extrusion de cendres
JP2021173476A (ja) * 2020-04-27 2021-11-01 三菱重工環境・化学エンジニアリング株式会社 灰押出装置及び灰押出装置の改造方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7391259B1 (ja) 2023-08-04 2023-12-04 三菱重工環境・化学エンジニアリング株式会社 灰押出装置
JP7391262B1 (ja) 2023-09-13 2023-12-04 三菱重工環境・化学エンジニアリング株式会社 灰押出装置

Citations (9)

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EP3730839A4 (fr) 2021-03-03
RU2744426C1 (ru) 2021-03-09

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