Patent ID: 7793601
Filing Date: 2010-09-14
Classification: C10J,F23B,F23G

Abstract:
1. An apparatus for gasifying solid fuel, said solid fuel including solid organic materials comprising: a primary oxidation chamber defined by a top, a bottom and sides, and having an inner surface lined with a refractory material to promote catalytic oxidation of the solid organic materials; at least one inlet opening in one of said sides for infeed of said solid fuel into said primary oxidation chamber; a storage container for storing the solid fuel; transfer means connecting said storage container with said at least one inlet opening and for transferring in an upwardly inclined direction the solid fuel from said means for storing the solid fuel through said inlet opening into said primary oxidation chamber to form an upwardly mounted fuel bed of the solid fuel including the organic materials on said bottom of said primary oxidation chamber, wherein said transfer means includes a hydraulic ram feeder and a compression tube, said hydraulic ram feeder driving fuel from said means for storing the solid fuel into said compression tube thereby compacting said fuel; means for supplying an oxidant into said primary oxidation chamber to gasify the solid organic materials to produce gasified organic materials including a first gaseous effluent, thereby leaving a residue of said solid fuel; cooperating with the primary oxidation chamber, a means for removing said first gaseous effluent from said primary oxidation chamber; at least one opening in said bottom of said primary oxidation chamber, said at least one opening having mounted thereunder means for the removal of said residue, said means for the removal of said residue includes a walking-floor feeder wherein a reciprocating rack having upstanding rigid members is seated on, and slides reciprocally relative to, said bottom so as to urge said residue out from underneath said fuel bed; and wherein said reciprocating rack reciprocating linearly from a first position adjacent a first side of said primary oxidation chamber to a second position away from said first side.