Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1975-02-10
1976-07-27
Camby, John J.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 165, 34 30, 34 36, 34 48, 34 51, F26B 700
Patent
active
039711390
ABSTRACT:
A process and an apparatus for decreasing the moisture content in wood which comprises the step of maintaining the wood in a vapor atmosphere made essentialy from sap until the center of the wood has substantially reached the temperature of the vapor, then gradually raising the temperature of the vapor atmosphere to a degree and during a time sufficient to bake the resinous substances inside the wood and reduce the moisture content to a predetermined percentage and subsequently reducing gradually the temperature of the housing to the temperature of the vapor, wherein the vapor is maintained during the process at a pressure slightly above the atmospheric pressure. The wood boards are disposed vertically to form vertical channels and the source of heat is located to obtain a vertical circulation of the vapor through the boards.
REFERENCES:
patent: 1413018 (1922-04-01), Fujino
patent: 1760444 (1930-05-01), Secord
patent: 2535925 (1950-12-01), Hudson
patent: 3131034 (1964-04-01), Marsh
Camby John J.
Morneau Roland L.
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