Drying and gas or vapor contact with solids – Apparatus – Gravity flow type
Patent
1998-04-16
2000-12-26
Ferensic, Denise L.
Drying and gas or vapor contact with solids
Apparatus
Gravity flow type
34172, 34174, 34182, F26B 1700
Patent
active
061639788
ABSTRACT:
A seed corn dryer capable of being switched between a single pass mode and a dual path mode of operation. The invention includes an air supply unit adapted to delivery drying air to only one dryer plenum in a dual path mode and to both dryer plenums in a single pass mode. One air supply unit includes a supply upper plenum and a supply lower plenum with a closable air passage therebetween. The dryer includes a center plenum partitioned into upper and lower plenums, with a series of corn bins on either side. Each bin has an upper inside air door, a lower inside air door, a lower outside air door and an upper inside air door. In one single pass mode, air is forced into both upper and lower dryer plenums, then either up or down in a single pass through an individual bin, exiting to the outside. In one dual path mode, air is forced only through the upper dryer plenum, then downward through a first bin, through the lower plenum, upward through a second bin, exiting through an upper outside air door.
REFERENCES:
patent: 3435540 (1969-04-01), Sanders, Jr. et al.
patent: 4050164 (1977-09-01), Campbell
patent: 4212115 (1980-07-01), Adler
Drake Malik N.
Ferensic Denise L.
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