EP 0993582 A1 20000419 - OVERFEED BURNER FOR SOLID FUEL AND METHOD OF ITS OPERATION
Title (en)
OVERFEED BURNER FOR SOLID FUEL AND METHOD OF ITS OPERATION
Title (de)
VON OBEN GESPEISTER BRENNER FÜR FESTEN BRENNSTOFF UND VERFAHREN ZU DESSEN BETRIEB
Title (fr)
BRULEUR A ALIMENTATION PAR LE HAUT DESTINE A UN COMBUSTIBLE SOLIDE ET SON MODE DE FONCTIONNEMENT
Publication
Application
Priority
- SE 9801218 W 19980623
- SE 9702515 A 19970630
Abstract (en)
[origin: WO9900626A1] Overfeed burner with controllable output for solid fuels, such as chips or coal, comprising a combustion chamber (2), downwardly delimited by a grate (3), a burner pipe (14) for unburned gases connected to the combustion chamber, and means for supplying primary and secondary air. Distinguishing features are that the grate (3) is horizontally rotatable and vertically movable for changing the volume of the combustion chamber (2), that a restrictable secondary air inlet (16) and a damper (13), which is equipped with a controllable secondary air inlet (15), are arranged in the passage (12) between the combustion chamber and the burner pipe, and a controllable fan (21) for feeding combustion air. A method of operation includes lowering the output by lowering the speed of the fan (21), then throttling the passage (12) between the combustion chamber and the burner pipe, reducing the supply of secondary air, reducing the rotation speed of the grate (3) and closing a damper (23) for over-fire air.
IPC 1-7
F23B 1/16; F23B 1/24; F23B 5/04; F23N 5/20; F23H 9/00; F23H 17/06; F23L 9/00; F23L 11/00
IPC 8 full level
F23H 17/06 (2006.01); F23J 1/06 (2006.01); F23K 3/16 (2006.01); F23L 9/04 (2006.01); F23L 11/00 (2006.01); F23M 11/02 (2006.01)
CPC (source: EP)
F23B 1/24 (2013.01); F23B 5/04 (2013.01); F23H 17/06 (2013.01); F23J 1/06 (2013.01); F23K 3/16 (2013.01); F23L 9/04 (2013.01); F23L 11/00 (2013.01); F23M 11/02 (2013.01); F23G 2209/261 (2013.01); Y02E 20/34 (2013.01)
Citation (search report)
See references of WO 9900626A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9900626 A1 19990107; AU 8135898 A 19990119; CA 2293779 A1 19990107; CN 1258342 A 20000628; EA 001628 B1 20010625; EA 200000079 A1 20000626; EP 0993582 A1 20000419; NO 996247 D0 19991216; NO 996247 L 19991216; SE 520073 C2 20030520; SE 9702515 D0 19970630; SE 9702515 L 19981231
DOCDB simple family (application)
SE 9801218 W 19980623; AU 8135898 A 19980623; CA 2293779 A 19980623; CN 98805593 A 19980623; EA 200000079 A 19980623; EP 98931172 A 19980623; NO 996247 A 19991216; SE 9702515 A 19970630