Cereal grain cleaning system

Details Cereal grain cleaning system Cereal grain cleaning system

1991-12-13

1992-10-27

Watts, Douglas D.

Solid material comminution or disintegration

Processes

Cereal and other seeds or seed parts

241 9, B02B 502

Patent

active

051582376

ABSTRACT:
A method for cleaning a cereal grain such as wheat includes the steps of separating a quantity of incoming wheat into a light fraction and a heavy fraction. The light fraction is then cleaned by passing it through a vertically oriented treatment chamber defined between inner and outer chamber walls. The inner chamber wall includes a set of inner abrasive elements and the outer chamber wall includes a set of outer abrasive elements and a screen. One of the sets of abrasive elements is rotated with respect to the other and a gas is forced through the treatment chamber. In this way, a substantial fraction of any oats in the cereal grain is fragmented. The light fraction is aspirated after it is passed through the treatment chamber to clean the light fraction further. Conventional scouring and tempering steps can then be used.

REFERENCES:
patent: 866942 (1907-09-01), Little
patent: 2962230 (1960-11-01), Dilley et al.
patent: 4583455 (1986-04-01), Salete-Garces
patent: 4744523 (1988-05-01), High et al.
patent: 5089282 (1992-02-01), Wellman
Henry Simon, Gravity Selector, Henry Simon Limited, Stockport Cheshire, England.
SGS, Gravity Selector T/10-T/20, Aspetti 232, Italy.
Carter Day, Disc Separators, CD-DS90.

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