Rotary drum filter with improved deck structure

Details Rotary drum filter with improved deck structure Rotary drum filter with improved deck structure

1991-12-06

1993-09-14

Lithgow, Thomas M.

Liquid purification or separation

Filter

Movable medium

210404, 210406, 209270, B01D 33067

Patent

active

052445720

ABSTRACT:
A drum filter is provided including a rotatably mounted, generally cylindrical drum with a filter and vacuum drainage associated therewith. The deck structure comprises a plurality of circumferentially spaced, axially extending, and radially projecting imperforate members affixed at one end to the outer peripheral surface of the drum and having an outer end on which said filter is supported. The members each include a pair of circumferentially spaced, axially extending, and radially projecting imperforate surfaces. Perforate members are preferably formed in a substantially "U" shaped cross-sectional configuration comprising a pair of sidewall members connected to a floor member, which in turn is joined to and supported on the outer peripheral surface of the filter drum. The opposed surfaces of the members together define filtrate slots which form open axially extending channels adapted to receive at least a substantial portion of the filtrate after the drum rotates past the twelve o'clock position. In this way, rewetting of a fibrous mat formed on the filter is minimized. The ratio of the radially projecting height of the of the imperforate channel to the width in the circumferential direction between opposed surfaces of adjacent members is at least about 1.25:1

REFERENCES:
patent: 2204928 (1940-06-01), Culver
patent: 2991218 (1961-07-01), Cirrito
patent: 2998883 (1961-09-01), Rich
patent: 3306457 (1967-02-01), Putnam
patent: 3323654 (1967-06-01), Lee
patent: 3363774 (1968-01-01), Luthi
patent: 3409139 (1968-11-01), Jackson
patent: 3419150 (1968-12-01), Davis
patent: 3590453 (1971-07-01), Bryand
patent: 3680708 (1972-08-01), Luthi
patent: 3695996 (1972-10-01), Frezzotti
patent: 3794178 (1974-02-01), Luthi
patent: 3837499 (1974-09-01), Luthi
patent: 3894899 (1975-07-01), Konopatov
patent: 4001119 (1977-01-01), Hunter
patent: 4101374 (1978-07-01), Nebel
patent: 4154687 (1979-05-01), LaValley
patent: 4266413 (1981-05-01), Yli-Vakkuri
patent: 4289624 (1981-09-01), Golczewzki
patent: 4370231 (1983-01-01), LaValley
patent: 4383877 (1983-05-01), LaValley
patent: 4407720 (1983-10-01), Bratten
patent: 4419165 (1983-12-01), LaValley

Affiliated with

Also associated with

Rating

Rotary drum filter with improved deck structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotary drum filter with improved deck structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary drum filter with improved deck structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2024186