Brush feeder for disposal of thermoplastic waste in a fluidized

Details Brush feeder for disposal of thermoplastic waste in a fluidized Brush feeder for disposal of thermoplastic waste in a fluidized

1982-04-21

1984-01-03

Favors, Edward G.

Furnaces

Refuse incinerator

Refuse suspended in or supported by a fluid medium

110110, 110346, 198659, F23G 500

Patent

active

044236883

ABSTRACT:
In accordance with the invention, a means and method are provided for continuously delivering thermoplastic particles to an operating fluidized bed reactor in which they are thermally degraded. Conveyor systems of the type used to feed non-meltable feedstocks to fluidized bed reactors were found to be unsuitable for the application. Accordingly, a novel device was developed in which polymer particles are conveyed to a reactor in a specialized feed tube. The tube features a brush-screw auger-type feeder and a source of pressurized gas to agitate the particles therein and prevent backflow of hot reactor fluids.

REFERENCES:
patent: 1255275 (1918-02-01), Barnett et al.
patent: 3121501 (1964-02-01), Laidig
patent: 3472185 (1969-10-01), Burden, Jr.
patent: 4308806 (1982-01-01), Uemura et al.

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