Suspended sludge scraper for arcuate sedimentation zone

Details Suspended sludge scraper for arcuate sedimentation zone Suspended sludge scraper for arcuate sedimentation zone

1975-10-06

1976-08-31

Hart, Charles N.

Liquid purification or separation

Recirculation

Serially connected distinct treating or storage units

210197, 210202, 210218, 210530, C02C 108

Patent

active

039779742

ABSTRACT:
Apparatus for collection and removal of settled solids from the bottom part of an arcuate sedimentation zone, comprising a scraper blade suspended by cable means from a bridge and drawn reciprocatingly and repetitively in an arcuate path around the sedimentation zone. Means are provided for shortening the suspended lengths of the cable means at the approach of the bridge to a radial end wall of the zone so that the scraper blade is drawn toward the wall for radial alignment therewith, thereby eliminating unscraped `dead space` adjacent the end walls.

REFERENCES:
patent: 1879135 (1932-09-01), Downes et al.
patent: 1892648 (1932-12-01), Bousman
patent: 2734634 (1956-02-01), Knowles
patent: 3235083 (1966-02-01), Sontheimer et al.
patent: 3312346 (1967-04-01), Walker
patent: 3890231 (1975-06-01), LaClair et al.
patent: R27000 (1970-12-01), Klopper

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