JPS5748331A - Treatment of coal ash - Google Patents

Treatment of coal ash

Info

Publication number
JPS5748331A
JPS5748331A JP55122155A JP12215580A JPS5748331A JP S5748331 A JPS5748331 A JP S5748331A JP 55122155 A JP55122155 A JP 55122155A JP 12215580 A JP12215580 A JP 12215580A JP S5748331 A JPS5748331 A JP S5748331A
Authority
JP
Japan
Prior art keywords
coal ash
ammonia
accumulated
air
ammonium salt
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.)
Pending
Application number
JP55122155A
Other languages
Japanese (ja)
Inventor
Kikuji Tsuneyoshi
Kazuto Masai
Naohiko Ugawa
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP55122155A priority Critical patent/JPS5748331A/en
Publication of JPS5748331A publication Critical patent/JPS5748331A/en
Pending legal-status Critical Current

Links

Landscapes

  • Processing Of Solid Wastes (AREA)
  • Chimneys And Flues (AREA)
  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To efficiently remove ammonia from coal ash adhered with an ammonium salt by blowing air into an accumulated body obtained by adding water to coal ash collected in a dust collecting apparatus from a conduit below said accumulated layer to return generated ammonia to a flue.
CONSTITUTION: An exhaust gas generated in a coal boiler 1 is introduced into a denitrification apparatus 2 and coal ash (d) adhered with an ammonium salt collected in a dust collecting apparatus 4 is introduced into a humidiying apparatus 5 and water (e) is added thereto. The resultant humidified coal ash (f) is introduced into an ammonia releasing apparatus 6 to be accumulated therein and, thereafter, air (g) is blown into an accumulated body from a lower part thereof through a conduit and a generated ammonia gas is removed from the coal ash. Air containing ammonia is supplied to a preceeding stage of the denitrification apparatus 2 through a line (c). The coal ash after the ammonium salt is decomposed and removed is conveyed out from the ammonia releasing apparatus 6 when supply of air (g) stopped.
COPYRIGHT: (C)1982,JPO&Japio
JP55122155A 1980-09-03 1980-09-03 Treatment of coal ash Pending JPS5748331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55122155A JPS5748331A (en) 1980-09-03 1980-09-03 Treatment of coal ash

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55122155A JPS5748331A (en) 1980-09-03 1980-09-03 Treatment of coal ash

Publications (1)

Publication Number Publication Date
JPS5748331A true JPS5748331A (en) 1982-03-19

Family

ID=14828956

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55122155A Pending JPS5748331A (en) 1980-09-03 1980-09-03 Treatment of coal ash

Country Status (1)

Country Link
JP (1) JPS5748331A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61182720A (en) * 1986-01-24 1986-08-15 Nikken Kosakusho:Kk Tool holder
JPH08187484A (en) * 1995-01-09 1996-07-23 Kawasaki Heavy Ind Ltd Coal ash deammonification treatment method and device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61182720A (en) * 1986-01-24 1986-08-15 Nikken Kosakusho:Kk Tool holder
JPH08187484A (en) * 1995-01-09 1996-07-23 Kawasaki Heavy Ind Ltd Coal ash deammonification treatment method and device

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