Multiple filter dynamic washer

Details Multiple filter dynamic washer Multiple filter dynamic washer

1993-10-28

1996-07-23

Lamb, Brenda A.

Liquid purification or separation

Plural distinct separators

Filters

162 60, 162 55, 210336, 210314, 210415, 68148, 68181R, B01D 2400

Patent

active

055386326

ABSTRACT:
A pressurized dynamic pulp washer including an annular hollow housing in which the stock is driven axially along a plurality of stationary, annular, coaxial wash filters in axially reversible directions, with an annular rotatable shell between the wash filters to urge liquid through openings in the filters, to generate axial, radial and circumferential velocities in the slurry to create localized pulses in the slurry to urge liquid through the filters with wash liquid being introduced to replace liquid filtered from the fibers in the slurry.

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Crotogino/Poirier/Trinh, "The Principles of Pulp Washing" Jun. 1987, pp. 95-103, Tappi Journal.

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