Title (en)

METHOD AND APPARATUS FOR THE COMBUSTION OF SOLID, LIQUID, GASEOUS OR PASTE-LIKE FUELS IN A FLUIDIZED-BED FURNACE

Publication

EP 0202215 A3 19870415 (DE)

Application

EP 86890070 A 19860320

Priority

AT 128785 A 19850430

Abstract (en)

[origin: EP0202215A2] Solid, liq. gaseous or pasty materials can be burned in a fluidised bed furnace wherein one or more vertical partitions, e.g. an open-ended cylinder immersed in the bed, produce zones, which the O2-contg. fluidising gas fluidises to different extents, producing internal circulation of solids. Most of the fuel is delivered into a zone with reduced fluidistable, i.e. where the predominent, coarse wet fuel is supported by a laterally entering feed worm while fine dry fuel and also any liq. or pasty material) is taken by a lance into the bed centre. Sub-stoichiometric O2 supplies in the fuel admission area permit graduated combustion, with reduced NOX emission. The penetrates may be a heat exchanger, with fluid media circulating in internal tubing.

IPC 1-7

F23C 11/02; F22B 31/00; F23J 1/00

IPC 8 full level

F22B 31/00 (2006.01); F23C 10/02 (2006.01); F23C 10/24 (2006.01)

CPC (source: EP)

F22B 31/0092 (2013.01); F23C 10/02 (2013.01); F23C 10/24 (2013.01)

Citation (search report)

• [X] GB 1577717 A 19801029 - MITCHELL D A
• [Y] GB 1419811 A 19751231 - COAL INDUSTRY PATENTS LTD
• [A] EP 0090641 A2 19831005 - FOSTER WHEELER ENERGY CORP [US]
• [Y] EP 0124636 A1 19841114 - SULZER AG [CH]
• [A] FR 2254754 A1 19750711 - BABCOCK & WILCOX LTD [GB]
• [A] DE 2943376 A1 19800508 - EBARA CORP
• [A] DE 3324857 A1 19850117 - GEORG RASCHKA INGENIEUR BUERO [DE]
• [Y] RESEARCH DISCLOSURE, Nr. 210, Oktober 1981, Seite 381, Havant, Hampshire, GB; H. POSTHUMUS: "Multicell-fluidized bed boiler"

Designated contracting state (EPC)

BE CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0202215 A2 19861120; EP 0202215 A3 19870415; AT 382227 B 19870126; AT A128785 A 19860615

DOCDB simple family (application)

EP 86890070 A 19860320; AT 128785 A 19850430