Method of, and apparatus for, filtering a slurry

Details Method of, and apparatus for, filtering a slurry Method of, and apparatus for, filtering a slurry

1983-12-16

1986-01-21

Turk, Arnold

Liquid purification or separation

Processes

Separating

210228, 210231, 210350, 210385, 210780, 100211, B01D 3700, C02F 100

Patent

active

045656371

ABSTRACT:
Filter cake formed from a slurry is dried in a filter press comprising a plurality of filtration units each having a chamber bounded by a pair of opposed flexible walls with at least one of said walls being constituted by a filter medium. The flexible walls are sandwiched between flexible membranes. The filter cake is formed and compressed in the chambers by hydraulic fluid pressure acting on the flexible membranes. By means of pressure oscillations set up in the hydraulic fluid, the filter cake in the chambers is deformed by bowing from side to side of an initial central plane, whereby drying is improved.

REFERENCES:
patent: 1705908 (1927-07-01), Witt
patent: 3180825 (1965-04-01), Couvreur et al.
patent: 3613563 (1971-10-01), Sumskay et al.
patent: 3655049 (1972-04-01), Krachlaner
patent: 3695440 (1972-10-01), Mori
patent: 3807567 (1974-04-01), Iwatani
patent: 3957645 (1976-05-01), Karita et al.
patent: 4397746 (1983-08-01), Kratochvil

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