EP0029235A1 - Aschebeseitigungssystem für die Asche aus einer kohlebefeuerten Verbrennungskammer - Google Patents

Aschebeseitigungssystem für die Asche aus einer kohlebefeuerten Verbrennungskammer Download PDF

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Publication number
EP0029235A1
EP0029235A1 EP80107060A EP80107060A EP0029235A1 EP 0029235 A1 EP0029235 A1 EP 0029235A1 EP 80107060 A EP80107060 A EP 80107060A EP 80107060 A EP80107060 A EP 80107060A EP 0029235 A1 EP0029235 A1 EP 0029235A1
Authority
EP
European Patent Office
Prior art keywords
ash
water
hopper
disposal system
discharged
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Withdrawn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
EP80107060A
Other languages
English (en)
French (fr)
Inventor
William Stephen Mikus
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.)
Combustion Engineering Inc
Original Assignee
Combustion Engineering Inc
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 Combustion Engineering Inc filed Critical Combustion Engineering Inc
Publication of EP0029235A1 publication Critical patent/EP0029235A1/de
Withdrawn legal-status Critical Current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
    • F23J1/02—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

Definitions

  • the invention relates to an ash disposal system for ash discharged from a coal-fired combustion chamber, particularly for the pretreatment to dewater bottom ash from a steam generator firing solid fuels.
  • the invention as claimed is intended to provide a remedy.
  • the invention provides an ash handling system for the furnaces of steam generators, including an ash hopper beneath the furnace, a water transport system for carrying the ash away from the hopper, a screen arrangement for separating most of the water from the ash so it can be recycled, and a relatively small settling bin for separating the ash from the remainder of the water.
  • numeral 10 designates the furnace of a steam generator in which coal is burned as a fuel. Slag and ash fall through the bottom opening 12 into an ash hopper 14, which is kept filled with water to a level 16 by means of pipe 18,
  • An overflow pipe 20 keeps the water level constant.
  • a valve 22 is periodically opened to discharge the ash.
  • a clinker grinder 24 breaks up the large ash particles so that they will not become jammed in the discharge opening, and so that they may be easily transported in a stream of water away from the hopper 14.
  • the material discharged from'the hopper 14 contains 75% solids, and 25% water.
  • Water is added to the transport pipe 26, so that the mix transported therein is 20% ash and 80% water. This mixture is transported to a holding or surge tank 28.
  • a gate valve 30 in the bottom of tank 28 can be opened at short intervals, or be maintained in an opened position except when the equipment downstream thereof is being repaired, to discharge the ash and water into a vibrating dewatering screen arrangement 32.
  • a pair of screens, 34 and 36 are continuously vibrated in any well--known manner, to separate the ash from a majority of the water.
  • the first screen 34 can separate out the more coarse particles, and screen 36 can remove the fines.
  • the screens are preferably slightly inclined, so that the solids gravitate towards and are discharged through outlet 38. Some water will still be carried over with the ash.
  • the mixture being discharged through outlet 38 will be approximately 25% water and 75% ash, and is discharged into holding tank 40. 'From here, it can be discharged into a truck, storage pond, etc.
  • the water flowing through the screens is discharged through opening 42, and flows through pipe 44 and pump 46 back to the hopper discharge to be used again as transport water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Processing Of Solid Wastes (AREA)
  • Filtration Of Liquid (AREA)
EP80107060A 1979-11-16 1980-11-14 Aschebeseitigungssystem für die Asche aus einer kohlebefeuerten Verbrennungskammer Withdrawn EP0029235A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9504179A 1979-11-16 1979-11-16
US95041 1979-11-16

Publications (1)

Publication Number Publication Date
EP0029235A1 true EP0029235A1 (de) 1981-05-27

Family

ID=22248924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80107060A Withdrawn EP0029235A1 (de) 1979-11-16 1980-11-14 Aschebeseitigungssystem für die Asche aus einer kohlebefeuerten Verbrennungskammer

Country Status (7)

Country Link
EP (1) EP0029235A1 (de)
JP (1) JPS5681167A (de)
KR (1) KR830004565A (de)
AU (1) AU6437380A (de)
CA (1) CA1145617A (de)
ES (1) ES496759A0 (de)
IN (1) IN154188B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432288A (en) * 1980-12-09 1984-02-21 San Energy Co., Ltd. Combustion apparatus for granular solid fuel
FR2560970A1 (fr) * 1984-03-07 1985-09-13 Aiello Raymond Foyer a combustible solide
US5082572A (en) * 1990-09-05 1992-01-21 Ogden Martin Systems, Inc. Ash vibration process and apparatus
EP0971170A3 (de) * 1998-07-10 2000-03-01 Babcock Kraftwerkstechnik GmbH Verfahren zur Entwässerung von Asche
CN107300186A (zh) * 2017-06-06 2017-10-27 大唐贵州发耳发电有限公司 一种超强力脱水装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243690U (de) * 1986-08-21 1987-03-16

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB134081A (de) *
GB220749A (en) * 1923-06-12 1924-08-28 Underfeed Stoker Co Ltd Improvements relating to the removal of ashes and the like from furnaces
AT137077B (de) * 1932-07-02 1934-04-10 Anton Rothstein Verfahren und Anordnung zur Entfernung der Asche aus den Sammeltrichtern unter Feuerungs-Kesselanlagen und sonstigen Aschesammlern.
DE967861C (de) * 1948-10-29 1957-12-19 Babcock & Wilcox Dampfkessel W Entaschungsvorrichtung fuer eine mit UEberdruck im Brennraum betriebene Feuerung und Verfahren zum Entaschen mit einer solchen Vorrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5341861A (en) * 1976-09-29 1978-04-15 Oki Electric Ind Co Ltd Apparatus for removing solids or half-melted substances contained in treating solution

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB134081A (de) *
GB220749A (en) * 1923-06-12 1924-08-28 Underfeed Stoker Co Ltd Improvements relating to the removal of ashes and the like from furnaces
AT137077B (de) * 1932-07-02 1934-04-10 Anton Rothstein Verfahren und Anordnung zur Entfernung der Asche aus den Sammeltrichtern unter Feuerungs-Kesselanlagen und sonstigen Aschesammlern.
DE967861C (de) * 1948-10-29 1957-12-19 Babcock & Wilcox Dampfkessel W Entaschungsvorrichtung fuer eine mit UEberdruck im Brennraum betriebene Feuerung und Verfahren zum Entaschen mit einer solchen Vorrichtung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432288A (en) * 1980-12-09 1984-02-21 San Energy Co., Ltd. Combustion apparatus for granular solid fuel
FR2560970A1 (fr) * 1984-03-07 1985-09-13 Aiello Raymond Foyer a combustible solide
US5082572A (en) * 1990-09-05 1992-01-21 Ogden Martin Systems, Inc. Ash vibration process and apparatus
EP0971170A3 (de) * 1998-07-10 2000-03-01 Babcock Kraftwerkstechnik GmbH Verfahren zur Entwässerung von Asche
DE19830943B4 (de) * 1998-07-10 2010-09-09 Hitachi Power Europe Gmbh Verfahren zur Entwässerung von Asche
CN107300186A (zh) * 2017-06-06 2017-10-27 大唐贵州发耳发电有限公司 一种超强力脱水装置

Also Published As

Publication number Publication date
ES8201719A1 (es) 1982-01-01
KR830004565A (ko) 1983-07-13
CA1145617A (en) 1983-05-03
IN154188B (de) 1984-09-29
AU6437380A (en) 1981-05-21
JPS5681167A (en) 1981-07-02
ES496759A0 (es) 1982-01-01

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB SE

17P Request for examination filed

Effective date: 19811013

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19831118

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MIKUS, WILLIAM STEPHEN