Furnaces – Refuse incinerator – With means for advancing or handling refuse or residue
Patent
1992-12-04
1994-02-08
Yuen, Henry C.
Furnaces
Refuse incinerator
With means for advancing or handling refuse or residue
110257, 110345, 110346, F23G 500, F23D 102
Patent
active
052841030
ABSTRACT:
A bio-mass burner construction for alternate fuels at temperatures from about 1,800 degrees F. to about 2,800 degrees F. to replace oil and gas burners. The burner utilizes a first burning chamber having a falling fuel, entrained bed zone positioned above a traveling grate having a porous metallic woven belt. Primary air is directed through the porous belt to establish an oxygen-starved first burning chamber. A second burning chamber in fluid communication with the first burning chamber, but having a restricted diameter, effectively provides a hot air gas nozzle. The second burning chamber receives a superheated secondary air source from cored apertures in interfitting refractory block members which provide a refractory lining for a portion of the first burning chamber and receive heat from the first burning chamber to heat the secondary air. In larger sized units a plurality of conveyors constitute the traveling grate with the conveyors being arranged in head-to-head stepped relationship so that unburned fuel received by gravity from the entrained bed zone is agitated or jostled to enhance its burning. An automatic ash removal system receives ashes from the traveling grate in a U-shaped trough through which travels a heavy duty auger. A water misting bath is provided in the U-shaped trough to lower the ash temperature.
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Abrams Stan E.
Hand David J.
Hand, Jr. Calvin H.
Waste Conversion Systems, Inc.
Yuen Henry C.
Zegeer Jim
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