Method and apparatus for separation by flotation in a centrifuga

Details Method and apparatus for separation by flotation in a centrifuga Method and apparatus for separation by flotation in a centrifuga

1994-11-10

1996-07-16

Lithgow, Thomas M.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209169, 209170, 209724, 209451, 209452, 209 18, B03D 124, B03D 102, B03B 700, B04B 106

Patent

active

055358934

ABSTRACT:
Method and apparatus for the separation of particles from a particulate suspension. The apparatus comprises a rotating flotation drum (10) with a feed distribution chamber (13). Particulate suspension feed enters the chamber through a delivery pipe (20). The feed passes through holes (21) into the particle collection chamber (22). Air is passed into the particulate suspension through a porous inner wall (29) and a froth is generated. The froth and particulate suspension pass into a froth cleaning chamber (32). The froth is washed by being sprayed from a washwater distribution pipe (47). Froth is removed from the drum by a froth scraper (49) through a froth removal chute (50). Unfrothed particulate suspension passes through openings (40) into a weir chamber (41) and is removed through a launder (45).

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