EP0031098A1 - Aschebeseitigungssystem mit Tauchkratzförderer - Google Patents

Aschebeseitigungssystem mit Tauchkratzförderer Download PDF

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Publication number
EP0031098A1
EP0031098A1 EP80107837A EP80107837A EP0031098A1 EP 0031098 A1 EP0031098 A1 EP 0031098A1 EP 80107837 A EP80107837 A EP 80107837A EP 80107837 A EP80107837 A EP 80107837A EP 0031098 A1 EP0031098 A1 EP 0031098A1
Authority
EP
European Patent Office
Prior art keywords
ash
hopper
disposal system
water
beneath
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Withdrawn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
EP80107837A
Other languages
English (en)
French (fr)
Inventor
Anthony James Cozza
Joseph Gerard Singer
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 EP0031098A1 publication Critical patent/EP0031098A1/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Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to an ash-disposal system for ashes discharged from a coal-fired or other ash-bearing fuel-fired combustion chamber.
  • the invention as claimed is intended to provide a remedy by providing an ash-handling or ash-disposal system for the furnaces of steam generators, including an ash hopper beneath the furnace into which the ash and slag initially falls.
  • a pair of scraper conveyors which are submerged in water are located below the ash hopper from which the ash is continuously disposed of.
  • Water nozzles are located in the ash hopper for cooling and moving the ash.
  • numeral 10 denotes the furnace bottom opening of a coal-fired steam generator, through which molten ash and slag are discharged.
  • a water seal 12 permits thermal expansion of the top-supported furnace, while preventing exposure of the interior of ash hopper 14 to the atmosphere.
  • Ash falls into the ash hopper ( Figure 2), sliding down the angled floor to one of-the openings 18,20. These openings can be closed by gates 22,-24 when necessary, as later described.
  • This hopper may or may not be refractory-lined and may or may not be water-cooled.
  • the ash falls through the openings 18, 20 into one or the other of the longitudinal tanks 26, 28.
  • Each tank contains a scraper conveyor 30, 32, the upper runs of which are'submerged, or located beneath the water level maintained in each tank.
  • the upper runs of the conveyors carry the clinkers to the end of the tanks, where they can be discharged into trucks or onto mechanical conveyors (not shown) and transported away.
  • a portion of the water in the tanks is constantly removed and replenished to maintain the main body of water at a temperature not exceeding 160°F (71°C).
  • the conveyors are in constant operation, continuously removing ash.
  • its corresponding gate valve for example 22, can be closed, so all of the ash is then discharged through opening 20 into tank 28.
  • Tank 26 can then be drained so-that the conveyor 30, or other broken equipment, can be repaired without necessitating shutdown of the steam generator.
  • both gate valves 22 and 24 can be closed. Water from the nozzles 40 can then be used.to fill the ash hopper 14 to a given level, and the ash can be temporarily stored in the ash hopper for a short time while minor repair or maintenance work is done to the conveyors.
  • An overflow pipe 42 keeps the water at a constant level during this type of operation.
  • the water nozzles 40 provide an additional function. During normal operation, they direct jets or sprays of water onto the falling ash, thus providing hydraulic fracturing and sluicing of large ash particles, preventing the openings 18 and 20 from becoming clogged.
  • the gates can be kept closed, and the ash hopper normally filled with water. The gates could then be intermittently opened to allow discharge of the ash.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasification And Melting Of Waste (AREA)
EP80107837A 1979-12-13 1980-12-11 Aschebeseitigungssystem mit Tauchkratzförderer Withdrawn EP0031098A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10272279A 1979-12-13 1979-12-13
US102722 1979-12-13

Publications (1)

Publication Number Publication Date
EP0031098A1 true EP0031098A1 (de) 1981-07-01

Family

ID=22291350

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80107837A Withdrawn EP0031098A1 (de) 1979-12-13 1980-12-11 Aschebeseitigungssystem mit Tauchkratzförderer

Country Status (7)

Country Link
EP (1) EP0031098A1 (de)
JP (1) JPS5697724A (de)
KR (1) KR850000354B1 (de)
AU (1) AU6534280A (de)
CA (1) CA1149678A (de)
ES (1) ES497123A0 (de)
IN (1) IN154577B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6053594A (ja) * 1983-07-29 1985-03-27 ケイアールダブリュ　エネルギー　システムズ　インク 流動床ガス化装置
CN112833669A (zh) * 2020-12-31 2021-05-25 重庆长江造型材料（集团）股份有限公司 一种高效节能的热裂解炉
CN114210145A (zh) * 2021-12-17 2022-03-22 南京工业大学 一种高温陶瓷膜除尘器底部的卸灰密封系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5866233U (ja) * 1981-10-19 1983-05-06 バブコツク日立株式会社 多重溝型クリンカホツパ
JPS6050305A (ja) * 1983-08-29 1985-03-20 Mitsubishi Heavy Ind Ltd 灰出装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE360613C (de) * 1922-10-05 Anton Rothstein Vorrichtung zur Entfernung der Verbrennungsrueckstaende aus Feuerungsanlagen
US1525048A (en) * 1919-11-10 1925-02-03 Underfeed Stoker Co Ltd Ash-conveying mechanism
DE529695C (de) * 1932-10-22 Kosmos G M B H Spuelvorrichtung fuer auf Stuetzflaechen liegende Aschemengen
US2379998A (en) * 1942-11-02 1945-07-10 Frederick L Stokoe Ash storage and conveying apparatus
US2589317A (en) * 1945-01-10 1952-03-18 Standard Oil Dev Co Nonfoaming oil composition containing polymeric silicone
US3440978A (en) * 1967-04-27 1969-04-29 Foster Wheeler Corp Corrugated furnace seal
DE1932152A1 (de) * 1969-06-25 1971-01-14 Dreismann Dr Robert Nassentascher fuer Kesselanlagen
DE2114070A1 (de) * 1971-03-23 1972-10-05 Steinmueller Gmbh L & C Stauvorrichtung
US3915105A (en) * 1973-05-22 1975-10-28 Babcock & Wilcox Ag Wet bin for collection and quenching of ashes from a pulverized coal combustion chamber
US3931773A (en) * 1973-12-22 1976-01-13 Evt Energie-Und Verfahrenstechik Gmbh Ash removal apparatus for coal-dust firing equipment

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE360613C (de) * 1922-10-05 Anton Rothstein Vorrichtung zur Entfernung der Verbrennungsrueckstaende aus Feuerungsanlagen
DE529695C (de) * 1932-10-22 Kosmos G M B H Spuelvorrichtung fuer auf Stuetzflaechen liegende Aschemengen
US1525048A (en) * 1919-11-10 1925-02-03 Underfeed Stoker Co Ltd Ash-conveying mechanism
US2379998A (en) * 1942-11-02 1945-07-10 Frederick L Stokoe Ash storage and conveying apparatus
US2589317A (en) * 1945-01-10 1952-03-18 Standard Oil Dev Co Nonfoaming oil composition containing polymeric silicone
US3440978A (en) * 1967-04-27 1969-04-29 Foster Wheeler Corp Corrugated furnace seal
DE1932152A1 (de) * 1969-06-25 1971-01-14 Dreismann Dr Robert Nassentascher fuer Kesselanlagen
DE2114070A1 (de) * 1971-03-23 1972-10-05 Steinmueller Gmbh L & C Stauvorrichtung
US3915105A (en) * 1973-05-22 1975-10-28 Babcock & Wilcox Ag Wet bin for collection and quenching of ashes from a pulverized coal combustion chamber
US3931773A (en) * 1973-12-22 1976-01-13 Evt Energie-Und Verfahrenstechik Gmbh Ash removal apparatus for coal-dust firing equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6053594A (ja) * 1983-07-29 1985-03-27 ケイアールダブリュ　エネルギー　システムズ　インク 流動床ガス化装置
EP0139092A1 (de) * 1983-07-29 1985-05-02 KRW Energy Systems Inc. Entaschungsapparat für Wirbelbettvergaser
CN112833669A (zh) * 2020-12-31 2021-05-25 重庆长江造型材料（集团）股份有限公司 一种高效节能的热裂解炉
CN114210145A (zh) * 2021-12-17 2022-03-22 南京工业大学 一种高温陶瓷膜除尘器底部的卸灰密封系统

Also Published As

Publication number Publication date
CA1149678A (en) 1983-07-12
ES8202127A1 (es) 1982-01-16
JPS5697724A (en) 1981-08-06
KR850000354B1 (ko) 1985-03-22
IN154577B (de) 1984-11-10
AU6534280A (en) 1981-06-18
KR830004421A (ko) 1983-07-13
ES497123A0 (es) 1982-01-16

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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: 19830427

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SINGER, JOSEPH GERARD

Inventor name: COZZA, ANTHONY JAMES