Fluidized bed process

Details Fluidized bed process Fluidized bed process

1980-03-31

1981-05-12

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

127 71, F26B 308, C13L 100

Patent

active

042663482

ABSTRACT:
A process and apparatus for fluidized bed operations wherein the fluidized bed includes an upper fluidized zone and a lower fluidized zone, with each of the upper and lower fluidized zones equipped with agitating means therein. Positioned intermediate the upper and lower fluidized zones are a plurality of tubular zones. Substantially parallel to the fluidized zones is a discharge leg positioned to receive fluidized solids from the lower fluidized zone in which the fluidized solids are fluidized in the leg at a level substantially equal to the level of fluidized solids in the upper zone whereby a portion of the solids can be removed from a repositionable discharge means in the discharge leg. The process involved in this invention utilizes a fluidized system for starch drying wherein the moisture content of the starch supplied to the fluidized bed is controlled to a level not exceeding 27% whereby the fluidized bed can be operated at higher temperatures without damaging the starch.

REFERENCES:
patent: 3233336 (1966-02-01), Oldweiler et al.
patent: 3349500 (1967-10-01), Wall
patent: 3967975 (1976-07-01), Idasnak
patent: 4021927 (1977-05-01), Idasnak
patent: 4106210 (1978-08-01), Jukkola

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