Method and apparatus for drying flat structural components

Details Method and apparatus for drying flat structural components Method and apparatus for drying flat structural components

1988-10-17

1990-01-02

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 17, 34 60, 34210, F26B 334

Patent

active

048903949

ABSTRACT:
Flat structural components such as sheetrock panels are dried sequentially by two different drying methods and devices. The first drying is performed as a convection drying, whereby surface layers of the panels are dried. The second drying is performed by a high frequency drying, whereby a still moist central core layer is dried down to a desired remainder moisture content. During the second drying by a high frequency generator, the moisture is driven out by diffusion, whereby any over-drying of outer surface layers is reversed again so that any over-drying, or rather damages that may be caused by dehydration of the gypsum in the sheetrock panels is repaired again since the outwardly diffusion moisture enables the gypsum to cure and set again.

REFERENCES:
patent: 2408434 (1946-10-01), Mann et al.
patent: 2543618 (1951-02-01), Wood
patent: 3435535 (1969-04-01), Blair
patent: 3548513 (1970-12-01), Taylor
patent: 3775860 (1973-12-01), Barnes et al.
patent: 4204337 (1980-05-01), Roos et al.

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