Filter apparatus

Details Filter apparatus Filter apparatus

1986-02-26

1987-10-27

Sever, Frank

Liquid purification or separation

Plural distinct separators

Filters

210347, 210410, B01D 2938

Patent

active

047028335

ABSTRACT:
A filter apparatus is disclosed having a multi-stage filter tower and a plurality of liquid reservoirs, each reservoir having an approximately horizontal filter surface at its lower surface. The reservoirs are connected to each other centrally and in a vertical direction, with such communication causing an inflow clearance between the upper surface of each reservoir and the filter surface. The multi-stage tower is provided within a tank having a liquid inlet, a liquid outlet, and a drain spout, which are controlled by valves. The interior of the filter tower is connected with the liquid outlet of the tank and the filter tower has a head connected with a source of pressurized air via a valve arrangement. The apparatus according to the invention provides for the advantageous, economical and efficient washing of filter surfaces that become clogged during the filtration and purification process.

REFERENCES:
patent: 2720314 (1955-10-01), Booth

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