Fluidized bed feeder

Details Fluidized bed feeder Fluidized bed feeder

1986-11-03

1987-09-15

Favors, Edward G.

Furnaces

Process

Burning pulverized fuel

110101CD, 110105, 110108, 406124, 406137, F23D 100

Patent

active

046931899

ABSTRACT:
A method and apparatus for fluidizing combustible material and feeding it to the burner of a furnace is disclosed. The apparatus includes a conventional hopper with a tubular element coupled to the lower most portion of a conical portion thereof. A fluidizing gas delivery apparatus is provided so as to deliver fluidizing gas to the bottom tube. Fluidizing nozzles are also preferably provided at symmetrically spaced circumferential portions of the conical portion of the hopper. With this apparatus, powdered material that is fed to the hopper is fluidized by the fluidizing gas and may be delivered to the burner of a furnace from the bottom tube of the fluidized bed feeder like a liquid and may be readily ignited in the burner and burned completely within the furnace.

REFERENCES:
patent: 3366282 (1968-01-01), Lucas
patent: 3501062 (1970-03-01), De Witt et al.
patent: 4311102 (1982-01-01), Kolze et al.
patent: 4496076 (1985-01-01), Tompkins

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