Apparatus and method for postcombustion of heavy ash with high contents of unburnt matter

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EP 0 931 981 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	19.01.2000 Bulletin 2000/03

(43)	Date of publication A2:
	28.07.1999 Bulletin 1999/30

(21)	Application number: 99200062.0

(22)	Date of filing: 12.01.1999

(51)	International Patent Classification (IPC)⁷: F23J 1/00, F23B 5/00

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

15.01.1998 IT MI980051

(71)	Applicant: Magaldi Ricerche E Brevetti S.R.L.
	84135 Salerno (IT)

(72)	Inventors:
	Magaldi, Mario 84100 Salerno (IT) Carrea, Alberto 16145 Genova (IT)

(74)	Representative: Riccardi, Sergio
	Riccardi & Co. Via Macedonio Melloni, 32 20129 Milano 20129 Milano (IT)

(54)	Apparatus and method for postcombustion of heavy ash with high contents of unburnt matter

(57) An apparatus and method to promote the completion of the combustion of unburnt matter contained in ash arising from the combustion of solid fuel are described. The apparatus for the postcombustion of ash arising from the combustion of solid fuel comprises a combustion chamber (14) and an extractor (16) arranged so as to receive ash falling from the combustion chamber, the unburnt matter of said ash having to be burnt, said extractor comprising in turn a metallic belt (18) for ash transportation, said apparatus being characterized in that said conveyor belt is provided with parts or openings for the passage of combustion feeding air, said air thus passing through said ash during at least a part of the forward advancing stretch of said belt.

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