Drying and gas or vapor contact with solids – Apparatus – Gravity flow type
Patent
1996-04-25
1997-08-05
Bennett, Henry A.
Drying and gas or vapor contact with solids
Apparatus
Gravity flow type
34174, 34507, F26B 1712
Patent
active
056530439
ABSTRACT:
Apparatus of the present invention for batch drying crop in the shell comprises a bin having a generally cylindric bin wall, a conical upper drying floor carded by the bin wall, means floor for forming a substantially uniform layer of the crop to be dried on the upper surface of the upper drying floor, and selectively operable means for effecting the gravity discharge of the batch of crop from the upper drying floor. An inverted conical lower drying floor is carded by the bin below the upper drying floor for receiving the crop discharged from the upper drying floor. The lower drying floor has a hopper shaped crop supporting surface. Means is associated with the lower drying floor for forming a substantially uniform layer of crop on the lower drying floor upon the crop being gravity discharged from the upper drying floor. The lower drying floor further has a bottom outlet for the gravity discharge of the crop supported thereon. The upper and lower drying floors are of perforate construction so as to permit air under pressure to flow therethrough and through the layer of crop supported thereon. A lower plenum is provided within the bin below the lower floor, and an upper plenum is disposed between the upper and the lower drying floors. A lower fan/heater forces air under pressure into the lower plenum so that air from within the lower plenum flows through the perforate lower drying floor and through the peanut layer carried thereby and into the upper plenum. An upper fan/heater forces heated air into the upper plenum such that the heated air from the upper fan mixes with the air forced through the crop on the lower drying floor such that air from both the lower fan/heater and the upper fan/heater is forced through the upper drying floor and the layer of crop thereon so as to at least in part dry the crop on the upper floor. A method of batch drying a crop is also described.
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Bestwick Ronald
Decker Jeffrey D.
Bennett Henry A.
Doster Dinnatia
The GSI Group, Inc.
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