Drying and gas or vapor contact with solids – Apparatus – For diverse operations on treated material
Patent
1997-01-23
1998-10-06
Bennett, Henry A.
Drying and gas or vapor contact with solids
Apparatus
For diverse operations on treated material
34 65, 34168, 414287, F26B 1900
Patent
active
058159410
ABSTRACT:
A pellet conditioning device (10) for the cooling and/or drying of preformed discrete pellets (148) is provided which includes an upright pellet-receiving bin (12) with a dual grate assembly (18) therein. The assembly (18) includes a stationary first grate comprising a plurality of upright, apertured grate wall members (86), and a shiftable second grate including a plurality of elongated, obliquely oriented plates (106) located between and in spanning relationship to adjacent pairs of the wall members (86). Shifting structure (20) is provided for selective and sequential translational, rectilinear shifting movement of the lower margins (110) of the plates (106) so as to successively open and close a pellet passageway (117) adjacent each lower margin (110). A duct and fan arrangement (38) is also provided with the bin (12) so as to draw cooling air currents through the grate assembly (18) and pellets (148) therein. The plates (106) may also be shifted upwardly to their maximum extent in order to dislodge pellet bridges above the grate assembly (18).
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Clark Douglas S.
Scott Nicholas B.
Wenger Lavon G.
Bennett Henry A.
O'Connor Pamela A.
Wenger Manufacturing Inc.
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