Drying and gas or vapor contact with solids – Apparatus – For diverse operations on treated material
Patent
1990-11-02
1992-06-23
Bennett, Henry A.
Drying and gas or vapor contact with solids
Apparatus
For diverse operations on treated material
34 92, 34191, 34242, F26B 1900
Patent
active
051231778
ABSTRACT:
In a wood curing kiln, a chamber is sealed to retain a negative pressure with respect to the ambient and for storing stacked lumber to be cured and having a concrete floor with embedded heating pipes for circulating heated water to heat the concrete floor to a temperature preventing condensation thereon, and with means for circulating heated air within the chamber and through the stacked lumber to remove moisture therefrom and with the chamber being constantly vented to remove moist air and maintain the negative pressure within the chamber. A tarp is suspended from the ceiling of the chamber above the stacked lumber to enable the tarp to be lowered to cover and seal the top of the stacked lumber so that the heated air flows across the top of the tarp and down into and through an end of the stacked lumber.
REFERENCES:
patent: 2802281 (1957-08-01), Stone
patent: 3149929 (1964-09-01), Asplund
patent: 4893415 (1990-01-01), Moldrup
Koetter Richard A.
Koetter Thomas C.
Bennett Henry A.
Forestor-Koetter
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