Classifying – separating – and assorting solids – Sifting – Elements
Patent
1990-07-30
1992-07-28
Rosenbaum, Mark
Classifying, separating, and assorting solids
Sifting
Elements
209393, 241 81, B07B 150
Patent
active
051338521
ABSTRACT:
A self-cleaning size-segregating grid for a coal crusher has two parallel clearing combs made up of rigid steel fingers which rotate through the grid bars to clear jammed materials therefrom. The propeller-like fingers are preferably staggered in angular orientation on their respective shafts. The shafts are spaced so that the swept volumes of the fingers overlap. A surge detector senses drive motor current as an indication of stall or incipient stall and automatically reverses the direction of rotation of the clearing combs.
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Chin Frances
Rosenbaum Mark
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