EP0029235A1 - Système pour enlever la cendre dégagée par une chambre de combustion chauffée au charbon - Google Patents
Système pour enlever la cendre dégagée par une chambre de combustion chauffée au charbon Download PDFInfo
- 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- Withdrawn
Links
Images
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)
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 (fr) | 1981-05-27 |
Family
ID=22248924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80107060A Withdrawn EP0029235A1 (fr) | 1979-11-16 | 1980-11-14 | Système pour enlever la cendre dégagée par une chambre de combustion chauffée au charbon |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0029235A1 (fr) |
JP (1) | JPS5681167A (fr) |
KR (1) | KR830004565A (fr) |
AU (1) | AU6437380A (fr) |
CA (1) | CA1145617A (fr) |
ES (1) | ES496759A0 (fr) |
IN (1) | IN154188B (fr) |
Cited By (5)
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 (fr) * | 1998-07-10 | 2000-03-01 | Babcock Kraftwerkstechnik GmbH | Procédé pour la déshydratation de cendres |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6243690U (fr) * | 1986-08-21 | 1987-03-16 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB134081A (fr) * | ||||
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)
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 |
-
1980
- 1980-08-11 CA CA000357957A patent/CA1145617A/fr not_active Expired
- 1980-08-26 IN IN979/CAL/80A patent/IN154188B/en unknown
- 1980-11-12 ES ES496759A patent/ES496759A0/es active Granted
- 1980-11-13 JP JP15894480A patent/JPS5681167A/ja active Pending
- 1980-11-14 AU AU64373/80A patent/AU6437380A/en not_active Abandoned
- 1980-11-14 KR KR1019800004377A patent/KR830004565A/ko unknown
- 1980-11-14 EP EP80107060A patent/EP0029235A1/fr not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB134081A (fr) * | ||||
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)
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 (fr) * | 1998-07-10 | 2000-03-01 | Babcock Kraftwerkstechnik GmbH | Procédé pour la déshydratation de cendres |
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 |
---|---|
JPS5681167A (en) | 1981-07-02 |
AU6437380A (en) | 1981-05-21 |
CA1145617A (fr) | 1983-05-03 |
ES8201719A1 (es) | 1982-01-01 |
KR830004565A (ko) | 1983-07-13 |
IN154188B (fr) | 1984-09-29 |
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 |