Drying kiln for lumber

Details Drying kiln for lumber Drying kiln for lumber

1976-04-07

1977-03-29

Sprague, Kenneth W.

Drying and gas or vapor contact with solids

Apparatus

Reversible or pulsating treating gas or vapor flow

34196, 34216, 34225, F26B 2106

Patent

active

040141071

ABSTRACT:
A drying kiln for lumber. The kiln comprises a drying chamber having two spaced drying sections each to receive a stack of lumber. There is a second chamber above the drying chamber and drivable, reversible, circulating means in the second chamber. The kiln also has heating means for air circulated by the circulating means. A first passageway permits the circulating means to force heated air across the drying sections, across the space between them and back to the circulating means. A second passageway extends downwardly into the space between the dryer section. There is a first and a second closable inlet for the second passageway. Each inlet is positioned on a side of the circulating means to receive a proportion of air forced towards it by the circulating means. A plurality of outlets to said space are in said second passageway. Means control the first and second inlets whereby if one is open the other is closed.

REFERENCES:
patent: 1594549 (1926-08-01), Noel
patent: 3149932 (1964-09-01), Bachrich
patent: 3386186 (1968-06-01), Tiefenbach
patent: 3659352 (1972-05-01), Cook

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