Title:
【発明の名称】主に塊状または断片状の固体燃料を燃焼させるための方法および装置
Document Type and Number:
Japanese Patent JPS61500234
Kind Code:
A
Abstract:
PCT No. PCT/SE84/00342 Sec. 371 Date Jun. 24, 1985 Sec. 102(e) Date Jun. 24, 1985 PCT Filed Oct. 17, 1984 PCT Pub. No. WO85/02007 PCT Pub. Date May 9, 1985.Method and device for firing solid fuels, substantially in the form of lumps or pieces, in a furnace having a combustion chamber (1) with a sustantially horizontal bottom (10), upon which is maintained a fuel bed (3) with relatively great thickness while supplying fuel within the very bed (3), through which bed primary combustion air is fed from below through mutually spaced primary air passages (18) in the combustion chamber bottom (10), the combustion gas which leaves said chamber (1) furthermore being subjected to a subsequent secondary combustion in a secondary combustion chamber after addition of secondary combustion air. In order to provide for a mechanical removal of ash the invention suggests that the fuel is supplied into the bed positively and intermittently at a position on an end wall of said combustion chamber (1) at a vertical height spaced above the bottom (10) of the latter but below the upper surface of the fuel bed during operation of the furnace and substantially in horizontal direction, whereby at each occasion newly supplied fuel provides an agitation of the bed (3 ) such that a concentrated combustion zone is obtained at the upper portion of the bed while finally combusted fuel in the form of ash is progressively moved towards the opposite end wall of the combustion chamber (1) and downwards and along the combustion chamber bottom (10), wherefrom the ash is removed in horizontal direction during furnace operation.
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Inventors:
Asplund Frank Eskill William
Giantze Ulrica Margareta
Giantze Ulrica Margareta
Application Number:
JP50402284A
Publication Date:
February 06, 1986
Filing Date:
October 17, 1984
Export Citation:
Assignee:
Energweckling Frank Asplund Actier Borage
International Classes:
F23B99/00; F23J1/00; F23J1/02; F23B30/08; F23K3/00; (IPC1-7): F23B1/22; F23B5/04
Attorney, Agent or Firm:
Akihide Sugimura (1 outside)