Thickener

Details Thickener Thickener

1989-11-15

1991-05-14

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210801, 210127, 210129, 210207, 2101951, 210519, B01D 2124

Patent

active

050153927

ABSTRACT:
A thickener for liquids or pulps comprising a tank in which flocculation takes place and dilute liquid is displaced toward the top of the tank, a feedwell having a bottom opening in fluid communication with said tank, conduit means to supply feed liquid to said feedwell, and apertures in said feedwell or said conduit disposed above said bottom opening and positioned to permit the flow of said dilute liquid directly from the tank into the feed liquid for dilution thereof.
The thickener preferably comprises a weir plate assembly connected with a side wall of the feedwell adjacent a side opening therein. The weir plate is preferably moveable by means of a float assembly between an open position permitting said dilute liquid to flow from the tank to the feedwell, and a closed position substantially closing the side opening.

REFERENCES:
patent: 1344370 (1920-06-01), Allen
patent: 1452016 (1923-04-01), Allen
patent: 1472317 (1923-10-01), Allen
patent: 2528094 (1950-10-01), Walker
patent: 2678730 (1954-05-01), Coulter
patent: 3532218 (1970-10-01), Von Blottnitz et al.
patent: 3926805 (1975-12-01), Walker
patent: 4267052 (1981-05-01), Chang
patent: 4293416 (1981-10-01), Keoteklian
patent: 4357242 (1982-11-01), Chandler
patent: 4541850 (1985-09-01), Oda et al.

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