Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1992-03-23
1993-07-20
Bennett, Henry A.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 73, 34 77, F26B 504
Patent
active
052282090
ABSTRACT:
Apparatus for drying cut wood has a cylindrical vessel with end covers at least one of which can be opened. The interior of the vessel is divided by a horizontal partition into a drying chamber above the partition, in which the wood is placed, and a condensation chamber below the partition. An opening in the partition provides restricted communication between the chambers. The interior of the vessel is filled with a drying medium made up of air and water vapor. A heater in the drying chamber heats the drying medium and a fan produces circulation of the drying medium in the drying chamber. The upper portion of the vessel wall, above the partition, is heat insulated while the lower portion, below the partition, is uninsulated and serves as a condenser for condensing water vapor in the condensation chamber. The lower portion of the vessel wall is cooled by a blower and by cooling coils in a foundation which supports the vessel. In one embodiment, the wood is stacked on the load platform of a car which runs into the vessel through one end thereof, when open. The load platform of the car serves as the partition between the chambers. The operation of the apparatus is controlled by a microprocessor which has inputs connected with heat, pressure and humidity sensors provided in the vessel.
REFERENCES:
patent: 217273 (1879-07-01), Dowling
patent: 1672326 (1928-06-01), Kobiolke
patent: 3283412 (1966-11-01), Farnsworth
patent: 3574949 (1971-04-01), Farnsworth
patent: 3744144 (1973-07-01), Weis
patent: 3939573 (1976-02-01), Berti
patent: 4893415 (1990-01-01), Moldrup
Bennett Henry A.
Burns Robert E.
Gromada Denise L.
Lobato Emmanuel J.
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