Dry kiln having bidirectional air flow with unidirectional fan r

Details Dry kiln having bidirectional air flow with unidirectional fan r Dry kiln having bidirectional air flow with unidirectional fan r

1976-11-08

1978-07-04

Sprague, Kenneth W.

Drying and gas or vapor contact with solids

Apparatus

Reversible or pulsating treating gas or vapor flow

34216, 34225, F26B 2106

Patent

active

040980081

ABSTRACT:
In a dry kiln, a plurality of in-tandem air control compartments and a fan between each pair of adjacent compartments. The fans are rotated in one direction only. The compartments have lateral air flow ports in which air valves are mounted. The fans are of opposite pitch and the valves are so alternately operated that although the fans blow the air unidirectionally, the air can be controlled to flow in one direction through the drying chamber of the kiln, or optionally in the opposite direction, for uniform drying purposes.

REFERENCES:
patent: 1903063 (1933-03-01), Olsson et al.
patent: 2032628 (1936-03-01), Nelson et al.
patent: 2055073 (1936-09-01), Ferre
patent: 3065553 (1962-11-01), Olin

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