Fine particulate feed system for fluidized bed furnace

Details Fine particulate feed system for fluidized bed furnace Fine particulate feed system for fluidized bed furnace

1982-12-27

1984-03-06

Yuen, Henry C.

Furnaces

Process

Burning pulverized fuel

110245, F22B 100

Patent

active

044347260

ABSTRACT:
A method and apparatus for feeding solids into the bed of a fluidized bed furnace (18). The feed solids are separated into a fine fraction and a coarse fraction. The coarse fraction is supplied to fluidized bed (16) in an in-bed pneumatic transport feed system or in an over-the-bed feed system. The fine fraction as well as fluidizing air are supplied to fines admission zone (24) wherein the fine fraction and fluidizing air are thoroughly mixed. The mixture of the fine fraction of feed solids and the fludizing air is then passed upwardly through air distribution means (38) into fluidized bed (16).

REFERENCES:
patent: 3366080 (1968-01-01), Albertson
patent: 4206712 (1980-06-01), Vatsky
patent: 4259911 (1981-04-01), Jones
patent: 4312280 (1982-01-01), Shearer et al.
patent: 4325327 (1982-04-01), Kantesaria et al.

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