Furnaces – With fuel treatment means – Preliminary refuse treatment means
Patent
1976-01-07
1977-09-13
Sprague, Kenneth W.
Furnaces
With fuel treatment means
Preliminary refuse treatment means
110 7R, 110 8P, 110 10, 110 49R, F23G 504
Patent
active
040474895
ABSTRACT:
An integrated method is disclosed for preparing and suspension firing of bagasse and the like as the primary fuel for steam power generation in a cane sugar refinery. The method comprises mixing wet bagasse with de-ashed hot flue gases of a steam boiler, thereby drying it; separating bagasse dried thereby from the drying flue gases, capturing substantially all suspended dust; sizing the dried bagasse; directing bagasse fines to temporary storage while grinding and resizing any oversize bagasse; metering out and pneumatically suspending the fines, providing a smooth-flowing fuel responsive to a burner fuel feed control means; combusting the suspended fuel in a scroll feed type burner firing the steam boiler; de-ashing the combustion effluent, and utilizing the resultant flue gases for drying wet bagasse. Alternatively, the wet bagasse may be dried partially by de-ashed hot flue gases and partially by a bagasse fired supplementary hot air dryer, thereby further improving boiler operation efficiency.
REFERENCES:
patent: 1817228 (1931-08-01), Bliss
patent: 2148981 (1939-02-01), Dundas et al.
patent: 3387574 (1968-06-01), Mullen
patent: 3734036 (1973-05-01), Abos
Voorheis Temple S.
White James H.
Coen Company, Inc.
Sprague Kenneth W.
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