Method and apparatus for agitating and scrubbing filter bed

Details Method and apparatus for agitating and scrubbing filter bed Method and apparatus for agitating and scrubbing filter bed

1977-07-20

1978-10-03

Cuchlinski, Jr., William A.

Liquid purification or separation

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

Responsive to fluid flow

210 82, 210274, 210276, 210280, B01D 2324

Patent

active

041183207

ABSTRACT:
A method and apparatus for agitating and scrubbing a filter bed in which a tubular arm is disposed in the bed near the top thereof and is adapted for rotation on a vertical central axis. The arm has nozzles extending from opposite sides thereon on respective sides of the center and is caused to rotate in the filter bed by the supply of air under pressure through the arm to the nozzles. Other nozzles can be mounted on the ends of the arm to treat the filter bed outwardly from the ends of the arm. The air supplied to the nozzles may be enriched with oxygen. The filter bed is preferably backwashed by upward flow of water therethrough simultaneously with the agitation and scrubbing of the upper portion thereof with the air jets.

REFERENCES:
patent: 2309916 (1943-02-01), Palmer
patent: 3412863 (1968-11-01), Stuart, Sr.
patent: 3587975 (1971-06-01), Moffett
patent: 3925202 (1975-12-01), Hirs
patent: 3932278 (1976-01-01), Meidl et al.

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