Cotton drying apparatus

Drying and gas or vapor contact with solids – Apparatus – With apparatus using centrifugal force

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Details

34109, 34236, F26B 1710

Patent

active

040621286

ABSTRACT:
Apparatus for removing a certain amount of moisture from moisture laden cotton bolls. The apparatus includes a hopper for receiving the moist cotton bolls and rotatable dispensing structure for controllably metering optimum measures of moist cotton bolls into a fast moving airstream leading into a plenum. The midsection of the plenum houses at least one rotatably driven saw drum which is rotated at a controllable slow rate, e.g., 10-20 RPM. The teeth of the saw drum are arranged with the pointed tip portions respectively trailing the root portions or successively pointed into the airstream as the saw drum is rotated. Accordingly, the cotton bolls are impaled upon the pointed tip portions by the force of the circumfluent air. Therefore, movement of the cotton bolls through the midsection of the plenum is controllably retarded since the velocity of the circumferential surface of the saw drum determines the period of time in which the cotton bolls are exposed to the fast moving airstream, i.e., the saw drum preferably being driven by a variable speed motor. Moisture is drawn from the fibers of the suspended cotton bolls by the uninterrupted airstream which passes through the interstices and opens the locks of the cotton bolls. Accordingly, the slower the saw drum is turned, the dryer the cotton bolls become. The dry cotton bolls are doffed from the saw drum by directing a blast of air onto the saw drum, i.e., this blast of air now being in the same direction in which the teeth are canted.

REFERENCES:
patent: 1128592 (1915-02-01), Evans
patent: 2096208 (1937-10-01), Streun
patent: 2189099 (1940-02-01), Bennett
patent: 3069730 (1962-12-01), Vandergriff

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