Grain cleaning apparatus

Details Grain cleaning apparatus Grain cleaning apparatus

1980-08-11

1982-01-26

Halper, Robert

Classifying, separating, and assorting solids

Sifting

Drum sifters

209297, 209421, B07B 124

Patent

active

043127509

ABSTRACT:
A grain cleaning apparatus (10) for removing coarse and fine foreign materials from dirty grain before storage. The grain cleaning apparatus includes counter-rotating screen drums (18,20). Dirty grain is received in a frusto-conically shaped inner drum (18). Coarse foreign materials are prevented from passing through screen (100) of inner drum (18) and rather move to chute (38) where they fall to trough (40) for exiting from apparatus (10). Chute (38) is located between the output end (36) of the inner drum (18) and the output end (48) of the cylindrical outer drum (20). Grain is prevented from passing through screen (115) of outer drum (20). Fine foreign materials do pass therethrough, however, for exiting from apparatus (10). Clean grain drops from the output end (48) of outer drum (20).
A motor (22) drives a secondary drive shaft (24). Shaft (24) drives first and second pulley systems (26,28) to rotate inner and outer screen drums (18,20) in opposite directions simultaneously.

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