EP 2499429 A4 20141217 - METHOD AND ARRANGEMENT FOR FEEDING FUEL INTO A CIRCULATING FLUIDIZED BED BOILER
Title (en)
METHOD AND ARRANGEMENT FOR FEEDING FUEL INTO A CIRCULATING FLUIDIZED BED BOILER
Title (de)
VERFAHREN UND ANORDNUNG ZUR ZUFUHR EINES KRAFTSTOFFS IN EINEN BOILER MIT ZIRKULIERENDER WIRBELSCHICHT
Title (fr)
PROCÉDÉ ET AGENCEMENT D'ACHEMINEMENT DE COMBUSTIBLE DANS UNE CHAUDIÈRE À LIT FLUIDISÉ CIRCULANT
Publication
Application
Priority
- FI 20096170 A 20091110
- FI 2010050863 W 20101029
Abstract (en)
[origin: WO2011058218A1] The present invention relates to a method and an apparatus for feeding fuel into a circulating fluidized bed boiler. The invention is specifically concerned on feeding fine, light and/or moist fuel into the boiler. The method and apparatus for feeding light, fine and/or moist fuel into a circulating fluidized bed boiler is based on collecting circulating bed material to a return flow and introducing the return flow into communication with the fuel being introduced in the furnace (12) so that the bed material return flow and the fuel are mixed together and flow downwards in the furnace (12) for increasing the residence time of the fuel in the furnace (12).
IPC 8 full level
F23C 10/20 (2006.01); F23C 10/22 (2006.01); F23K 3/00 (2006.01)
CPC (source: EP FI KR US)
B01J 8/24 (2013.01 - FI); F22B 31/0084 (2013.01 - FI); F23C 10/06 (2013.01 - FI); F23C 10/10 (2013.01 - EP US); F23C 10/20 (2013.01 - KR); F23C 10/22 (2013.01 - EP FI KR US); F23K 3/00 (2013.01 - KR)
Citation (search report)
- [XA] US 4777889 A 19881018 - SMITH RICHARD D [US]
- [A] WO 8905942 A1 19890629 - CHAMBERT LARS AXEL [SE]
- [A] US 4335662 A 19820622 - JONES BRIAN C
- See references of WO 2011058218A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2011058218 A1 20110519; CA 2778991 A1 20110519; CN 102725587 A 20121010; EP 2499429 A1 20120919; EP 2499429 A4 20141217; FI 20096170 A0 20091110; FI 20096170 A 20110511; JP 2013510288 A 20130321; KR 101378739 B1 20140327; KR 20120079845 A 20120713; US 2012251959 A1 20121004
DOCDB simple family (application)
FI 2010050863 W 20101029; CA 2778991 A 20101029; CN 201080050985 A 20101029; EP 10829569 A 20101029; FI 20096170 A 20091110; JP 2012538369 A 20101029; KR 20127014432 A 20101029; US 201013508597 A 20101029