Fluidized bed apparatus for the production and/or further treatm

Details Fluidized bed apparatus for the production and/or further treatm Fluidized bed apparatus for the production and/or further treatm

1989-10-17

1990-11-20

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

With apparatus using centrifugal force

34 57R, 34 57B, F26B 1700

Patent

active

049708040

ABSTRACT:
A container (12) which is arranged at least approximately rotational symmetrical with respect to an at least approximately vertical container axis (A) has an interior which is made up of an inlet chamber (30) adapted to be traversed from the bottom to the top by a gas, in particular dry air, and a vortex chamber (32) which is arranged above the inlet chamber (30) and formed for fluidizing the material (10). Between the inlet chamber (30) and vortex chamber (32) a ring of guide plates (34) is arranged which, seen in the direction of the container axis (A), overlap each other and impart a twist to the upwardly directed gas flow. Between the guide plates (34) lances (40) are arranged at least approximately radially to the container axis (A) and each comprise at least one nozzle (42) arranged in the flow direction of the gas for introducing granulation substances into the vortex chamber (32). By the nozzles (42) large amounts of pulverulent and/or liquid substance per unit time may be sprayed into the vortex chamber (32) without the material forming lumps in uncontrollable manner or appreciable amounts of the substance depositing in the container (12).

REFERENCES:
patent: 4115929 (1978-09-01), Staub et al.
patent: 4320089 (1982-03-01), Huttlin
patent: 4530169 (1985-07-01), Okawara
patent: 4588366 (1986-05-01), Glatt
patent: 4685809 (1987-08-01), Huttlin
patent: 4697356 (1987-10-01), Huttlin
N.T.I.S. Technical Notes, Nr. 7, Teil D. Juli 1986, Seite 808, Springfield, Virginia, U.S.; "Agglomeration-Free Distributor for Fluidized Beds".

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