Slit-tube filter

Details Slit-tube filter Slit-tube filter

1989-06-30

1991-01-08

Fisher, Richard V.

Liquid purification or separation

Filter

With residue removing means or agitation of liquid

21049701, 55289, 55296, 55477, 209386, 209390, B01D 2446, B01D 2923, B01D 2964

Patent

active

049832905

ABSTRACT:
A slit-tube filter has a hollow cylindrical filter element of bent wires which are attached to vertical retaining supports and form horizontal slits between themselves through which the liquid to be filtered passes, the cylindrical inner wall of the filter elements forming the filter surface adjacent the flow of liquid. The liquid flows from the inside of the filter element to the outside. A stripping device passes over the filter surface adjacent the flow of liquid, and bears against the inner wall of the cylinder. The stripping device is a coaxial helix of brushes which rotates in relation to the filter element in a direction such that the suspended and settleable solids disposed on and in front of the filter surface are conveyed downwards.

REFERENCES:
patent: 442120 (1890-12-01), Hutchins
patent: 738166 (1903-09-01), Davidson
patent: 891424 (1908-06-01), Jessup
patent: 1275299 (1918-08-01), Pellerin
patent: 3145164 (1964-08-01), Jonkman
patent: 3246754 (1966-04-01), Sackett
patent: 4214878 (1980-07-01), Weiss

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