Clarifier cleaning apparatus

Details Clarifier cleaning apparatus Clarifier cleaning apparatus

1990-04-18

1992-01-07

Silverman, Stanley S.

Liquid purification or separation

Recirculation

Serially connected distinct treating or storage units

210256, 210527, 210926, 210541, 198747, 15 931, B01D 2120, C02F 314

Patent

active

050788698

ABSTRACT:
The apparatus of the present invention is a cleaning system to be employed in the clarifier. A track is mounted to opposing sides of the clarifier. A scraping blade spans the two rails. A mechanism connects the two ends of the blade to the tracks and provides for stepwise movement of the blade bidirectionally within the clarifier. Movement of the blade over slots found in the clarifier bottom results in displacement of sludge from the clarifier back into the orbital ditch. The moving mechanisms are preferably located adjacent the clarifier floor. The scraping blade moves in stepwise motion over each of the slots, displacing sludge through such slots. At the same time a suction header, with inlets on both sides of the blade, allows some of the sludge to be suctioned from the bottom of the clarifier and removed from the orbital ditch system.

REFERENCES:
patent: 3421626 (1969-01-01), Schramm
patent: 3510110 (1970-05-01), Klein
patent: 3846292 (1974-11-01), LeCompte, Jr.
patent: 4303516 (1981-12-01), Stensel et al.
patent: 4362625 (1982-12-01), Beard
patent: 4383922 (1983-05-01), Beard
patent: 4401576 (1983-08-01), Meurer
patent: 4457849 (1984-07-01), Beard
patent: 4487692 (1984-12-01), Kersten
patent: 4780206 (1988-12-01), Beard
patent: 4936982 (1990-06-01), DiGregorio et al.
EIMCO Equipment Catalog: EIMCO Water Treatment Equipment.
EIMCO Equipment Catalog: EIMCO Carrousel Biological Oxidation System.
"Assessment of Design Trade-Offs When Using Intrachannel Clarifiers", Jon. H. Bender, Journal WPCF, vol. 59, No. 10, pp. 871-876.

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