Froth flotation separation apparatus

Details Froth flotation separation apparatus Froth flotation separation apparatus

1985-10-15

1986-09-23

Nozick, Bernard

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209170, B03D 102

Patent

active

046134310

ABSTRACT:
An improved froth flotation installation for separating solid particles from an aqueous slurry by delivering a stream of the aqueous slurry directly into a vortex chamber along with a supply of bubble-forming gas. The kinetic energy of the slurry creates necessary froth bubbles, and provides mechanical agitation of the contents of a froth flotation separation zone upon discharge from the bottom of the vortex chamber. In multi-zone froth flotation installations, the direction of flow of the aqueous slurry of unrecovered solid particles is deliberately changed at least twice between a first froth flotation zone and a last froth flotation zone to improve solids-froth contact and to minimize the possibility of particles adopting a short circuit path through the installation. Multiple froth flotation zones are serviced by a single slurry pump in a preferred embodiment.

REFERENCES:
patent: 2765081 (1956-10-01), Evans
patent: 3048272 (1962-08-01), Miller
patent: 3400818 (1968-09-01), Tarjan
patent: 3446353 (1969-05-01), Davis
patent: 4220612 (1980-09-01), Degner et al.
patent: 4477338 (1984-10-01), Hellman

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