Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1981-03-24
1982-08-10
Camby, John J.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 92, F26B 504, F26B 1330
Patent
active
043430953
ABSTRACT:
A process and apparatus for accelerated drying of green and partially dried lumber at pressures above atmospheric pressure to rapidly remove selected portions of moisture from the wood without degradation of the wood structure. A kiln for performing the method comprises a generally cylindrical kiln chamber to contain a stack of lumber, a by-pass line from the front to the back of the chamber to heat and distribute steam evenly to the lumber surfaces, a pressure-controlled steam vent to regulate kiln temperature, and temperature control to regulate the rate of drying. Conditions of pressure and temperature in the kiln can be regulated by heat added from an external source to equalize and condition the lumber rapidly in steam.
REFERENCES:
patent: 3434222 (1969-03-01), Malmquist
patent: 3744144 (1973-07-01), Weis
patent: 3971139 (1976-07-01), Rochon
patent: 4058906 (1977-11-01), Pagnozzi
patent: 4176466 (1979-12-01), Pagnozzi et al.
patent: 4194296 (1980-03-01), Pagnozzi et al.
patent: 4198763 (1980-04-01), Kurihara
Bodkin Robert E.
Gaddis Kenneth D.
Rosen Howard N.
Camby John J.
McConnell David G.
Silverstein M. Howard
The United States of America as represented by the Secretary of
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