EP3730839A1 - Dispositif de poussée de cendres - Google Patents

Dispositif de poussée de cendres Download PDF

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Publication number
EP3730839A1
EP3730839A1 EP19750979.7A EP19750979A EP3730839A1 EP 3730839 A1 EP3730839 A1 EP 3730839A1 EP 19750979 A EP19750979 A EP 19750979A EP 3730839 A1 EP3730839 A1 EP 3730839A1
Authority
EP
European Patent Office
Prior art keywords
ash
liquid
tank
cooling tank
scraper
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP19750979.7A
Other languages
German (de)
English (en)
Other versions
EP3730839A4 (fr
Inventor
Yuki Ushio
Takahiro ODANO
Daiki USHIGOME
Katsuhiro Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Environmental and Chemical Engineering Co Ltd
Original Assignee
Mitsubishi Heavy Industries Environmental and Chemical Engineering Co Ltd
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 Mitsubishi Heavy Industries Environmental and Chemical Engineering Co Ltd filed Critical Mitsubishi Heavy Industries Environmental and Chemical Engineering Co Ltd
Publication of EP3730839A1 publication Critical patent/EP3730839A1/fr
Publication of EP3730839A4 publication Critical patent/EP3730839A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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

  • Patent Document 2 describes a technology for removing ash in the vicinity of the discharge opening with a cutter in order to enable the continuous operation of the ash discharger.
  • a special mechanism such as the cutter needs to be provided, which increases costs.
  • An object of the present invention is to provide an ash discharger that can facilitate the continuous operation of the ash discharger at low costs.
  • the scraper in the ash discharger according to the second aspect, includes: a scraper body that pushes the ash; and an auxiliary scraper connected to the scraper body, the auxiliary scraper guiding return ash of the ash to the first communicating portion.
  • the ash cooling tank 3 is a tank connected to the lower side of the ash introduction opening 2 to cool the ash A2 introduced through the ash introduction opening 2.
  • the bottom surface 10 of the ash cooling tank 3 includes a second inclined surface 12 that gradually becomes higher from directly below the ash introduction opening 2 in a second direction D2 that is opposite the first direction D1.
  • the mechanisms for pushing the ash A2, such as the scraper 4 and the driving unit 5, are disposed above the second inclined surface 12.
  • the scraper body 15 is disposed such that a tip thereof contacts the bottom surface 10 of the ash cooling tank 3 in a width direction "WD" (horizontal direction orthogonal to the first direction D1, see FIG. 2 ).
  • the scraper body 15 pushes the ash A2 toward the downstream side by pivoting the pivoting arm 14 in a first rotating direction R1. Pivoting of the pivoting arm 14 in a second rotating direction R2 opposite to the first rotating direction R1 retracts the tip of the scraper body 15 in the second direction D2.
  • the float tank 8 is provided with a liquid level gauge 24 for measuring the height of the liquid surface "W” in the float tank 8.
  • the liquid level gauge 24 is electrically connected to the control device 9. The height of the liquid surface "W” measured by the liquid level gauge 24 is transmitted to the control device 9.
  • the ash discharger 1 includes a first liquid supply device 27 that supplies liquid to the vicinity of the discharge opening 6. Specifically, the first liquid supply device 27 sprays the liquid onto the ash A2a deposited in the drainage region "R" of the ash cooling tank 3.
  • the first liquid supply device 27 includes a circulation liquid injection nozzle 28 disposed above the discharge opening 6, a circulation liquid line 29 that connects the circulation liquid injection nozzle 28 to the sedimentation tank 23, and a circulation pump 30 provided in the circulation liquid line 29 to circulate the liquid in the sedimentation tank 23 to the circulation liquid injection nozzle 28. Since the liquid stored in the sedimentation tank 23 is the liquid flowing into the overflow liquid receiver 21, the first liquid supply device 27 substantially circulates the liquid inside the float tank 8 to the circulation liquid injection nozzle 28. Liquid may also be supplied to the first liquid supply device 27 from other sources.
  • return ash A3 moves on the second inclined surface 12 on the second direction D2 side with respect to the scraper 4.
  • the return ash A3 is ash that, when the scraper 4 retracts, enters the second direction D2 side with respect to the scraper 4 through a gap or the like between the scraper 4 and the bottom surface 10.
  • the return ash A3 is introduced into the float tank 8 via the communication pipe 7.
  • the return ash A3 deposited in the float tank 8 can be discharged as appropriate via the float tank discharge pipe 17 by opening the float tank valve 18.
  • the ash cooling tank 3 and the float tank 8 in the modification communicate with each other via an opening 40 (second communicating portion) formed in a partition wall 39 partitioning the ash cooling tank 3 and the float tank 8, in addition to the communication pipe 7.
  • the opening 40 is formed to connect the liquid surface "W” in the ash cooling tank 3 to the liquid surface "W” in the float tank 8.
  • the opening 40 is formed such that a lower end 40a of the opening 40 is lower than the liquid surface "W", and an upper end 40b is higher than the liquid surface "W”.
  • the first liquid supply device 27 is configured to circulate the liquid in the sedimentation tank 23 (float tank 8) to the circulation liquid injection nozzle 28, but the present invention is not limited thereto.
  • it may be a first liquid supply device 27B that circulates the liquid stored in the ash cooling tank 3 to the circulation liquid injection nozzle 28.
  • the first liquid supply device 27B is controlled by the control device 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasification And Melting Of Waste (AREA)
EP19750979.7A 2018-02-09 2019-02-08 Dispositif de poussée de cendres Withdrawn EP3730839A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018022206A JP6417617B1 (ja) 2018-02-09 2018-02-09 灰押出装置
PCT/JP2019/004662 WO2019156221A1 (fr) 2018-02-09 2019-02-08 Dispositif de poussée de cendres

Publications (2)

Publication Number Publication Date
EP3730839A1 true EP3730839A1 (fr) 2020-10-28
EP3730839A4 EP3730839A4 (fr) 2021-03-03

Family

ID=64098662

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19750979.7A Withdrawn EP3730839A4 (fr) 2018-02-09 2019-02-08 Dispositif de poussée de cendres

Country Status (5)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6718564B1 (ja) * 2020-02-04 2020-07-08 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
JP6718563B1 (ja) * 2020-02-04 2020-07-08 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
CN111423907B (zh) * 2020-04-03 2021-08-13 重庆秋松环保科技有限公司 热解气化炉自动清渣系统
JP6752988B1 (ja) * 2020-04-27 2020-09-09 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
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

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51142778U (fr) * 1975-05-13 1976-11-17
FR2323102A1 (fr) * 1975-09-05 1977-04-01 Martin Johannes Josef Dispositif d'evacuation de dechets pour grands foyers
JPS53111679U (fr) * 1977-02-15 1978-09-06
JPS60132537U (ja) * 1984-02-15 1985-09-04 川崎重工業株式会社 灰押出機の水位調整構造
US4520738A (en) * 1984-06-19 1985-06-04 Kabushiki Kaisha Takuma Device to force out incineration ash
JPH0116916Y2 (fr) * 1984-10-12 1989-05-17
JPS6252735U (fr) * 1985-09-20 1987-04-02
CH677140A5 (fr) * 1988-10-11 1991-04-15 W & E Umwelttechnik Ag
JP2988830B2 (ja) * 1994-06-16 1999-12-13 日立造船株式会社 水冷灰の排出装置
DE19508488C3 (de) * 1995-03-09 2001-03-15 Martin Umwelt & Energietech Verfahren und Vorrichtung zum Erzeugen von deponiefähigen oder weiterverarbeitbaren Verbrennungsrückständen aus einer Abfallverbrennungsanlage
JPH11166712A (ja) * 1997-12-03 1999-06-22 Sumitomo Heavy Ind Ltd 焼却灰回収装置
JP2002257319A (ja) * 2001-02-27 2002-09-11 Mitsubishi Heavy Ind Ltd 灰押出装置
DE10213789B4 (de) * 2002-03-27 2006-04-20 Martin GmbH für Umwelt- und Energietechnik Verfahren zur Behandlung von Verbrennungsrückständen einer Verbrennungsanlage
KR101302025B1 (ko) * 2011-05-12 2013-08-30 지에스플라텍 주식회사 플라즈마 아크를 이용한 소각재 처리 장치 및 방법
JP6293213B2 (ja) 2016-08-01 2018-03-14 三菱電機株式会社 車線区画線検知補正装置、車線区画線検知補正方法、及び自動運転システム

Also Published As

Publication number Publication date
CN111630322A (zh) 2020-09-04
JP2019138550A (ja) 2019-08-22
WO2019156221A1 (fr) 2019-08-15
JP6417617B1 (ja) 2018-11-07
RU2744426C1 (ru) 2021-03-09
EP3730839A4 (fr) 2021-03-03

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