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Outokumpu Mintec Oy

David Taylor

Peter Gerard Bourke

Peter Bourke

Jouko Kallioinen

Timo Niitti

The invention relates to a flotation machine which at least contains a flotation cell having a means for feeding slurry in the flotation cell, a means for feeding air into the slurry and producing froth, a means for removing froth from the flotation cell and a means for removing tailings from the flotation cell. According to the invention the flotation cell () is provided with at least one rotating froth removal device () immersed at least partly in the froth () and so shaped that one end of the froth removal device () is extendible over the launder () attached to the flotation cell () in order to recover the froth () from the flotation cell () using the centrifugal force generated by the froth removal device ().

Flotation machine

An apparatus for extracting floatable minerals from a slurry (3). Slurry (3) is fed into a tank (2) via a feed inlet (25) and agitated and aerated so as to create an upper zone containing froth enriched with the floatable minerals. The agitation and aeration are also regulated to create a lower zone (41) containing a relatively dense or coarse component of the slurry (3), and an intermediate zone (42) containing a substantially less dense or finer component of the slurry (3). The surface froth is progressively withdrawn via a launder (30) thereby to produce a flotation concentrate. Similarly, the relatively dense component of the slurry (3) is progressively withdrawn from the lower zone (41) via a bottom inlet (26), and the relatively less dense of the slurry (3) is progressively withdrawn from the intermediate zone (42) via a side outlet (28).

Flotation method and apparatus for treatment of cyclone sands

An apparatus for separating froth from liquid includes a feed conduit to carry partially aerated feed liquid, and a separator to receive and separate the feed liquid into a first component of froth or gas and a second component of de-aerated liquid or sludge.

Growing community of inventors

Gordon, Australia

David Taylor