Screening system and method

Details Screening system and method Screening system and method

1990-05-31

1991-10-29

Dawson, Robert A.

Liquid purification or separation

Processes

Separating

210601, 210780, 210806, 210154, 210161, 210297, 210298, 210386, 210391, 210407, 198608, 198789, 198784, C02F 300

Patent

active

050613804

ABSTRACT:
The invention is a screening device suitable for screening a liquid material having solid matter suspended in it, which comprises a number of sets of discs, the discs of each set being rigidly mounted on a shaft, with the discs on each shaft being separated from one another axially, means mounting the shafts about parallel axes, with the discs of adjacent shafts being interleaved with one another and means to cause the shafts to rotate independently in the same rotational sense such that successive shafts rotate progressively faster to cause the solid matter suspended in the liquid material to be moved in a direction from the slowest shaft to the fastest shaft. The device is used particularly in sewage processing plants.

REFERENCES:
patent: 2885079 (1959-05-01), Wormser
patent: 3002625 (1961-10-01), Lannert
patent: 3870627 (1975-03-01), Herkes
patent: 4919346 (1990-04-01), Chambers
Water and Waste-Water Technology, Author, Mark J. Hammer, copyright 1975, pp. (350-351) and (365-366).

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