Center flow screening apparatus

Details Center flow screening apparatus Center flow screening apparatus

1980-03-17

1981-11-24

Halper, Robert

Classifying, separating, and assorting solids

Sifting

Feeding and discharging

209273, 209306, 210338, B07B 100

Patent

active

043023274

ABSTRACT:
A pressurized screening device has two pairs of concentric cylindrical screenplates, one pair mounted coaxially above the other in a common housing. Each pair of screenplates has a separate rotary impeller mechanism, the impellers being mirror images of each other. The pair of screenplates share a common central feed chamber, common accepts chamber, and a common drive for the two rotary impellers. Each pair of screenplates is provided with a separate rejects collection chamber, one located at the base of the housing and the other located near the top of the housing. This arrangement permits both high capacity operation as well as efficient removal of heavy and light impurities from a feed stream.

REFERENCES:
patent: 1106808 (1914-08-01), Haug
patent: 1209153 (1916-12-01), Haug
patent: 2975899 (1961-03-01), Cannon
patent: 3399772 (1968-09-01), Salomon
patent: 3497060 (1970-02-01), Tra
patent: 3767047 (1973-10-01), Rasmussen
patent: 3874509 (1975-04-01), Parker

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