JPS5753224A - Treatment of coal ash - Google Patents
Treatment of coal ashInfo
- 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
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
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)
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 |
-
1980
- 1980-09-17 JP JP55128803A patent/JPS5753224A/en active Granted
Cited By (9)
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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