Flotation equipment

Details Flotation equipment Flotation equipment

1994-12-01

1997-01-07

Lithgow, Thomas M.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

261 87, 261 93, 366102, B03D 116

Patent

active

055913270

ABSTRACT:
The invention provides for flotation equipment which is locatable inside a container for a pulp to be subjected to a flotation process and a rotor or impeller or agitator rotatable within the container about a substantially vertical axis, the rotor including first means for imparting a radially upward pulp stream movement to pulp particles in the container, the first means being in the form of a set of arcuate surfaces located between the vanes and second means for moving air from atmosphere in a downward direction to below the pulp stream level in the container, the second means comprising a set of arcuate surfaces extending from the top of the rotor to outlets in the peripheral surfaces of the vanes.

REFERENCES:
patent: 2148445 (1939-02-01), Drake
patent: 2246559 (1941-06-01), Weinig
patent: 2246560 (1941-06-01), Weinig
patent: 2436375 (1948-02-01), Booth
patent: 3700103 (1972-10-01), Giebel
patent: 3972815 (1976-08-01), O'Cheskey
patent: 4078026 (1978-03-01), Fallenius
patent: 4290886 (1981-09-01), Takakuwa
patent: 4508619 (1985-04-01), Niitti
patent: 5039400 (1991-08-01), Kallioinen
"Introduction to Mineral Processing" by Kelly, E. and Spottiswood, D. pp. 301-307, Ch. 16, Copyright 1982, John Wiley & Sons.

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