Cleansing device for fluidized bed reactors

Details Cleansing device for fluidized bed reactors Cleansing device for fluidized bed reactors

1978-02-24

1980-03-04

Schwartz, Larry I.

Drying and gas or vapor contact with solids

Apparatus

With apparatus using centrifugal force

34 85, 34 57D, 159 4CC, F26B 308

Patent

active

041909631

ABSTRACT:
In the chamber of a fluidized bed reactor for processing powdered products, a pneumatic cleansing device is arranged which comprises at least one pipe member mounted to be movable parallel to a perforated powder supporting plate at a small distance from the upper side thereof and having nozzles for ejecting air or gas towards the supporting plate to remove depositions of material from the upper side thereof between the perforations in the plate through which a fluidization gas flows upwardly to form a fluidized powder layer overlying the plate. The cleansing device may comprise additional pipe members with nozzles for ejecting air or gas towards the side wall and ceiling of the chamber and may be constructed for use in a box-shaped chamber as well as a cylindrical chamber for fluidized bed reactors of the plug-flow or spray granulation types.

REFERENCES:
patent: 1946566 (1934-02-01), Bowen
patent: 2761769 (1956-09-01), Elder
patent: 3780445 (1973-12-01), Hansen
patent: 4018262 (1977-04-01), Jaschinski et al.
patent: 4075766 (1978-02-01), Michel et al.

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