Dewatering machine

Details Dewatering machine Dewatering machine

1976-03-22

1976-11-16

Adee, John

Liquid purification or separation

With program actuator

210138, 210143, 210401, 100118, B01D 3302, B01D 3336

Patent

active

039922987

ABSTRACT:
A dewatering machine comprising an integral and cooperative combination of a vacuum filter of the rotary drum type and an expression device of the type wherein a diaphragm is pressed against a drainage deck. An intermittently-indexed first endless filter medium belt carries filter cake to the expression device after the cake is formed on the vacuum filter. A second endless filter belt is trained to run beneath the diaphragm of the expression device parallel to the drainage deck and above the first filter belt so that the filter cake is sandwiched between the two filter belts. The belt indexing action is coordinated with pressurization of the expression device so that the filter drum is indexed only when the diaphragm is relaxed and the pressurization is effected only at such times as the drum is not being indexed. The second filter belt prevents the pressed material from adhering to the diaphragm of the expression device.

REFERENCES:
patent: 2867324 (1959-01-01), Hirs
patent: 3317052 (1967-05-01), Davis
patent: 3375932 (1968-04-01), Ishigaki
patent: 3426908 (1969-02-01), Davis
patent: 3704788 (1972-12-01), Goodman

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