Automatically controlled splash plate

Details Automatically controlled splash plate Automatically controlled splash plate

1990-11-13

1992-01-28

Cintins, Ivars

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

210793, 210794, 210275, 210291, B01D 2440, B01D 3700

Patent

active

050841637

ABSTRACT:
An improved apparatus and process for the operation of a down-flow granular medium bed filter is disclosed. A splash plate for dissipating the force of influent liquid is rotatably connected to support means, allowing the plate to rotate from a position parallel to the bed surface to a position perpendicular to the bed surface upon the liquid above the bed rising to a selected first level. The splash plate is maintained in the perpendicular position for the remainder of the filtration cycle, the backwash cycle and any chemical cleaning cycle, allowing unobstructed operation of the filter bed. The splash plate returns to the original position at the start of another filtration cycle.

REFERENCES:
patent: Re28458 (1975-07-01), Ross
patent: 3459302 (1969-08-01), Ross
patent: 3516930 (1970-06-01), Ross
patent: 3587861 (1971-06-01), Ross
patent: 3817378 (1974-06-01), Ross
patent: 3933641 (1976-01-01), Hadden et al.
patent: 4076625 (1978-02-01), Scholten et al.
patent: 4366058 (1982-12-01), Wolde-Michael
patent: 4627923 (1986-12-01), Ross
patent: 4983308 (1991-01-01), Edwards

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