Method and apparatus for drying grain

Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor

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34 82, 34229, F26B 2108

Patent

active

040430510

ABSTRACT:
The embodiment of the invention disclosed herein is directed to a method and apparatus for drying grain. A refrigerating system is mounted within the closed-loop air duct structure which extends from an outlet to an inlet of a grain storage bin. The evaporator of the refrigerating system dries warm moisture-laden air as it passes through the closed-loop air duct. The air is then preheated by the compressor of the refrigeration system and finally heated by the condensor thereof. This heated air is then returned to the grain storage bin where it flows through a distributor for uniformly drying grain. An air flow bypass is provided at the inlet of the evaporator to take in outside air and vent off the warm moisture-laden air to atmosphere should the evaporator temperature increase beyond a predetermined point.

REFERENCES:
patent: 1119011 (1914-12-01), Grosvenor
patent: 1529808 (1925-03-01), Pike et al.
patent: 1711574 (1929-05-01), Miller
patent: 2172603 (1939-09-01), Adams et al.
patent: 2239246 (1941-04-01), Pike et al.
patent: 2479526 (1949-08-01), Touton
patent: 2799947 (1957-07-01), Elwess
patent: 3672068 (1972-06-01), Wilkison
patent: 3872686 (1975-03-01), Patrie

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