Liquid purification or separation – Filter – Movable medium
Patent
1998-04-29
1999-10-12
Upton, Christopher
Liquid purification or separation
Filter
Movable medium
210401, 210406, B01L 3304, B01L 3374
Patent
active
059650206
ABSTRACT:
An endless belt filter for separating liquids and solids from a mixture comprises a liquid-permeable filter belt below the upper run of which is positioned at least one suction tray moveable in the direction of the upper run of the belt, at least one hollow, elongate vacuum rail below the suction trays extending the length of the upper run of the belt, the suction trays seating on the vacuum rail to be guided thereby in their longitudinal movement therealong, and a vacuum source connected to the hollow interior of the vacuum rail, the trays including one or more apertures communicating into the hollow interior of the vacuum rail whereby an under pressure is applied to the trays by the vacuum source to draw liquid from the trays into the vacuum rail. The trays are supported by a pneumatic cushion.
REFERENCES:
patent: 4153550 (1979-05-01), Lautrette
patent: 4265765 (1981-05-01), Gallottini
patent: 4285815 (1981-08-01), Gallottini
patent: 4338193 (1982-07-01), Lautratte et al.
patent: 4595501 (1986-06-01), Queyroix
D & C Limited
Upton Christopher
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