Vacuum belt filter

Details Vacuum belt filter Vacuum belt filter

1981-12-03

1983-03-22

Therkorn, Ernest G.

Liquid purification or separation

Filter

With movable means to compress medium

210386, 210400, 210406, 100118, 100211, B01D 3304

Patent

active

043774792

ABSTRACT:
Slurry required to be filtered is supplied to a downwardly inclined feed section of intermittently-moving belt 25 by way of supply pipe 20. Inclination of succeeding vacuum section of belt 25, over vacuum boxes 17, ensures even distribution of thin layer of slurry over belt 25, dependent upon angle of inclination, in range 4.degree. to 20.degree. to horizontal (an angle of 8.degree. being illustrated).
Subsequently resultant filter cake layer is subjected to mechanical dewatering by an expansible membrane of a lower pressure plate 23 being expanded to press belt 25 with filter cake thereon against underside of counterplate 24.

REFERENCES:
patent: 3307704 (1967-03-01), Pashaian
patent: 3506128 (1970-04-01), Pashaian
patent: 3870641 (1975-03-01), Pierson
patent: 4008158 (1977-02-01), Davis
patent: 4081375 (1978-03-01), Deal
patent: 4147635 (1979-04-01), Crowe
patent: 4153550 (1979-05-01), Lautrette
patent: 4203836 (1980-05-01), Hallack
patent: 4285815 (1981-08-01), Gallottini
patent: 4310414 (1982-01-01), Lux
patent: 4324659 (1982-04-01), Titoff

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