Liquid purification or separation – Flow – fluid pressure or material level – responsive – Filter cleaning
Patent
1992-01-29
1994-07-19
Dawson, Robert A.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Filter cleaning
210134, 210168, B01D 2962
Patent
active
053306384
ABSTRACT:
A filtering system used to filter contaminated fluid. The filtering system (10) includes a supply pump (12); a filter tank (14) having a plurality of removable filter cassettes (16) disposed therein, each filter cassette housing in proper orientation a filter pad (164); a suction pump (18); a level control mechanism (148) maintaining a substantially uniform level of contaminated fluid within the filter tank; and a control panel (20) housing other process control components. Operation of the filtering system includes a backflush cycle and a relaxation cycle to extend the loading life of the filter pads. Also included is a preventive measure designed to eliminate fluid shear that may result as the filter pads approach the end of their loading life.
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Article entitled Evaluation of Frying Oil Filtration Systems, Journal of Food Science, vol. 57, No. 3, .COPYRGT.1992 Institute of Food Technologists, pp. 651-654, mailed Jun. 4, 1992.
Burklund Sidney A.
Olson Terry D.
Dawson Robert A.
Filtercorp Partners L.P.
Walker W. L.
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