Uni-directional anti-backsifting fluidization nozzle and a fluid

Details Uni-directional anti-backsifting fluidization nozzle and a fluid Uni-directional anti-backsifting fluidization nozzle and a fluid

1992-09-11

1994-02-15

Jones, Larry

Combustion

Fuel disperser installed in furnace

Disperser feeds into permeable mass, e.g., checkerwork, etc.

431 7, 431328, 110243, 110245, 13753331, 432 58, F23D 2100

Patent

active

052861880

ABSTRACT:
A fluidized bed system in which a plate is disposed in an enclosure and is adapted to support particulate material. A plurality of nozzles are supported by the plate for receiving air and directing the air through the plate and into the particulate material to fluidize same. Each of the nozzles includes a vertical tubular portion extending upwardly from the plate for receiving air from the air plenum, an angled tubular portion extending downwardly and outwardly from the vertical tubular portion for discharging the air, and a valve member movably housed in the vertical tubular portion, which permits air flow during operation but, upon shutdown, seals the nozzle and prevents backflow or backsifting of the particulate material.

REFERENCES:
patent: 4335661 (1982-06-01), Stewart et al.
patent: 4349969 (1982-09-01), Stewart et al.
patent: 4397102 (1983-08-01), Gamble et al.
patent: 4436507 (1984-03-01), Stewart et al.
patent: 4446629 (1984-05-01), Stewart et al.
patent: 4460330 (1984-07-01), Asai et al.
patent: 4521976 (1985-06-01), Stewart et al.
patent: 4574406 (1986-03-01), Sedlacek
patent: 4813817 (1989-03-01), Junier
patent: 4865540 (1989-09-01), Fitzgerald
patent: 5105559 (1992-04-01), Toth

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