Automatic filter level control by dilution with filtrate

Details Automatic filter level control by dilution with filtrate Automatic filter level control by dilution with filtrate

1971-07-28

1976-06-01

Adee, John

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 86, 210104, 210110, 210196, B01D 3302

Patent

active

039607267

ABSTRACT:
An automatic control is disclosed to keep rotary vacuum filter slurry feed below an upper overflow level and above a lower prime level in a continuous operation in closed circuit with at least one rotary separation stage comprising the slurry feed supply and into which excess filtrate is returned to maintain a predetermined slurry level at filtration. An operator regulates speed of separator rotation in accordance with measurement of level to provide selected speed of rotation for longest dry time for lowest cake moisture.

REFERENCES:
patent: 2360779 (1944-10-01), Lang et al.
patent: 2576275 (1951-11-01), Bench
patent: 2678733 (1954-05-01), Reeves
patent: 2851161 (1958-09-01), Dahlstrom et al.
patent: 3381821 (1968-05-01), Hellstrom
Denver Equipment Co. Bulletin FG-B1 of Nenuga Colo., pp. 2-8 relied on. Copy received in group 176 on 3/1956.

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