Split countercurrent flow tube settler

Details Split countercurrent flow tube settler Split countercurrent flow tube settler

1985-11-29

1988-11-08

Spear, Frank

Liquid purification or separation

Processes

Separating

210522, B01D 2110

Patent

active

047832550

ABSTRACT:
The tube settler of this invention is comprised of a plurality of long and narrow tubular passages inclined to the horizontal. The tubular passages have an approximate boomerang cross-sectional shape with the central apex directed upward. Rapid separation of settleable suspended material from a liquid is achieved because of the enforcement of laminar flow and a minimal settling distance within the tubular passages. Improved performance of this settler is attributed to enhanced conveyance of settled solids resulting from reduced upward liquid velocity in the vicinity of the countercurrent solids flow and the utilization of two solids discharge groves in each passageway.

REFERENCES:
patent: 3385439 (1968-05-01), Bach
patent: 3768648 (1973-10-01), Anderson et al.
patent: 3837501 (1974-09-01), Pielkenrood
patent: 3928209 (1975-12-01), Pahvianen et al.
patent: 4122017 (1978-10-01), Tanabe

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