Multi-element filter with rotary backwash arm

Details Multi-element filter with rotary backwash arm Multi-element filter with rotary backwash arm

1982-03-30

1984-07-31

Sadowski, David R.

Liquid purification or separation

Processes

Separating

2103232, 2103331, 210411, 210414, 210415, 210427, B01D 2538

Patent

active

044629168

ABSTRACT:
The apparatus comprises an enclosure divided into two compartments (13 and 14) by a partition wall (15) which has a circular row of apertures (16). Filtering elements (26) of hollow tubular shape are fixed in one (13) of the compartments by an open end on each one of the apertures (16). A rotary tubular arm (20) is mounted in the other compartment (14) and has an end which sweeps along the circle of apertures and coincides with each one of the apertures in turn. The arm has a device (21) at the rotatable end of the arm (20) for closing an aperture (16) of the partition wall (15) and the orifice (51) of the end of the arm and a suction pump (P) for applying a sudden counter-current hydraulic shock through the wall of each filtering element (26) in turn is provided.

REFERENCES:
patent: 3132099 (1964-05-01), Eilhaver
patent: 3280980 (1966-10-01), King
patent: 3317048 (1967-05-01), Kasten
patent: 3392835 (1968-07-01), Asper
patent: 3425557 (1969-02-01), Rosaen
patent: 3850803 (1974-11-01), Adams

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