Recirculating grain dryer

Details Recirculating grain dryer Recirculating grain dryer

1976-04-14

1977-09-20

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 65, 34169, F26B 700

Patent

active

040487270

ABSTRACT:
Improved process and apparatus for drying are disclosed whereby a moist granular material is dried by contact with a heated gas and is then cooled by contact with a cooler gas. The cooling gas is supplied to the cooling zone at a pressure which exceeds atmospheric pressure. During passage through the cooling zone, the temperature of the cooling gas is increased, and all of it is then circulated to the heating zone in order to reuse the heat thus absorbed for drying still more granular material. Fuel utilization and drying cost can be substantially reduced, and the invention is especially suitable for use with recirculating grain dryers.

REFERENCES:
patent: 707323 (1902-08-01), Hess, Jr.
patent: 1210166 (1916-12-01), Hess
patent: 1711574 (1929-05-01), Miller
patent: 3053522 (1962-09-01), Applegate
patent: 3092472 (1963-06-01), Figley
patent: 3440734 (1969-04-01), Batterton et al.
patent: 3629954 (1971-12-01), Lavalier
patent: 3751824 (1973-08-01), Kyle

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