Rotary drum filter with reciprocating nozzle means

Details Rotary drum filter with reciprocating nozzle means Rotary drum filter with reciprocating nozzle means

1994-05-16

1995-11-28

Dawson, Robert A.

Liquid purification or separation

Filter

Movable medium

210396, 210402, 210406, 210408, 210409, B01D 3306

Patent

active

054704723

ABSTRACT:
A rotating drum filter assembly for thickening lime sludge includes a liquid jet distributor for directing liquid jets against a strip of lime sludge filter cake on the ascending side of the drum. The distributor is positioned on the ascending side of the drum and within 45.degree. of a vertical plane tangential to the drum peripheral surface. The liquid jets are directed so as to disperse the strip in a manner such that substantially all of the lime sludge comprising the strip remains on the drum. Cake wash water formed by water distributed from shower heads immediately refills the cleaned strip thereby minimizing loss of vacuum within the hollow drum interior.

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