JPS5753224A - Treatment of coal ash - Google Patents

Treatment of coal ash

Info

Publication number
JPS5753224A
JPS5753224A JP55128803A JP12880380A JPS5753224A JP S5753224 A JPS5753224 A JP S5753224A JP 55128803 A JP55128803 A JP 55128803A JP 12880380 A JP12880380 A JP 12880380A JP S5753224 A JPS5753224 A JP S5753224A
Authority
JP
Japan
Prior art keywords
coal ash
ash
ammonium compound
coal
thrown
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.)
Granted
Application number
JP55128803A
Other languages
Japanese (ja)
Other versions
JPS6357094B2 (en
Inventor
Tadashi Shirakata
Kunihiko Mori
Hayamizu Ito
Chiaki Nagai
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.)
Electric Power Development Co Ltd
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Electric Power Development Co Ltd
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
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 Electric Power Development Co Ltd, Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Electric Power Development Co Ltd
Priority to JP55128803A priority Critical patent/JPS5753224A/en
Publication of JPS5753224A publication Critical patent/JPS5753224A/en
Publication of JPS6357094B2 publication Critical patent/JPS6357094B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Processing Of Solid Wastes (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Chimneys And Flues (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

PURPOSE: To efficiently remove an ammonium compound and black coal ash in coal ash respectively to utilize the same effectively by heating coal ash collected from an exhaust gas of a coal boiler in a dust collecting apparatus to a specific temp.
CONSTITUTION: An exhaust gas from a coal boiler 1 is successively passed through a denitration apparatus 2, an air preheater 3, a dust collecting apparatus 4, a heat exchanger 5 and a desulfurization apparatus 6 to be treated. Coal ash from which dust is removed in the dust collecting apparatus 4 contains black coal ash and an ammonium compound. Said coal ash is thrown into an ammonium compound pyrolysis furnace 11 and subjected to solid-gas contact at 300W500°C to decompose said ammonium compound and a decomposed gas containing ammonia is separated in a solid-gas separator 13 to be utilized in the denitration apparatus 2. Further, separated coal ash is thrown into a classifier 14 to be classified into a fine powder and a crude powder containing black coal ash such as uncombusted carbon or the like. The crude powder is thrown into a decoloring furnace 15 to be baked at 500W 1,100°C and, after decoloring, transported to an ash treating installation through an ash cooler 16.
COPYRIGHT: (C)1982,JPO&Japio
JP55128803A 1980-09-17 1980-09-17 Treatment of coal ash Granted JPS5753224A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55128803A JPS5753224A (en) 1980-09-17 1980-09-17 Treatment of coal ash

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55128803A JPS5753224A (en) 1980-09-17 1980-09-17 Treatment of coal ash

Publications (2)

Publication Number Publication Date
JPS5753224A true JPS5753224A (en) 1982-03-30
JPS6357094B2 JPS6357094B2 (en) 1988-11-10

Family

ID=14993805

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55128803A Granted JPS5753224A (en) 1980-09-17 1980-09-17 Treatment of coal ash

Country Status (1)

Country Link
JP (1) JPS5753224A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0288872U (en) * 1988-12-27 1990-07-13
JPH02193761A (en) * 1989-01-23 1990-07-31 Narita Seisakusho:Kk Automatic connecting/releasing device for vehicle hood
JPH03153459A (en) * 1989-11-09 1991-07-01 Narita Seisakusho:Kk Connecting hood for vehicle
KR100460624B1 (en) * 2002-10-31 2004-12-09 한국전력공사 Device for removing an adhesive gas of coal ash
US20080314242A1 (en) * 2007-06-19 2008-12-25 Progress Materials, Inc. Mercury removal systems using beneficiated fly ash particles and methods thereof
US7641878B2 (en) 2006-02-21 2010-01-05 Pmi Ash Technologies, Llc Fly ash beneficiation systems with sulfur removal and methods thereof
US7867462B2 (en) 2006-09-25 2011-01-11 Pmi Ash Technologies, Llc Coal combustion systems with emissions control and fly ash beneficiation and methods thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0288872U (en) * 1988-12-27 1990-07-13
JPH02193761A (en) * 1989-01-23 1990-07-31 Narita Seisakusho:Kk Automatic connecting/releasing device for vehicle hood
JPH03153459A (en) * 1989-11-09 1991-07-01 Narita Seisakusho:Kk Connecting hood for vehicle
JPH0624930B2 (en) * 1989-11-09 1994-04-06 株式会社成田製作所 Connecting hood for vehicles
KR100460624B1 (en) * 2002-10-31 2004-12-09 한국전력공사 Device for removing an adhesive gas of coal ash
US7641878B2 (en) 2006-02-21 2010-01-05 Pmi Ash Technologies, Llc Fly ash beneficiation systems with sulfur removal and methods thereof
US7867462B2 (en) 2006-09-25 2011-01-11 Pmi Ash Technologies, Llc Coal combustion systems with emissions control and fly ash beneficiation and methods thereof
US20080314242A1 (en) * 2007-06-19 2008-12-25 Progress Materials, Inc. Mercury removal systems using beneficiated fly ash particles and methods thereof
US8545598B2 (en) * 2007-06-19 2013-10-01 Pmi Ash Technologies, Llc Mercury removal systems using beneficiated fly ash particles and methods thereof

Also Published As

Publication number Publication date
JPS6357094B2 (en) 1988-11-10

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