A new cell has been developed the Concorde Cell in which the pre-aerated feed is raised to supersonic velocities before passing into a high-shear zone in the flotation cell. The local dissipation rate is of the order of 100 kW/m 3 one to two orders of magnitude higher than is available in conventional mechanical cells.
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> For 6 cells recovery = 94% > For a single large cell same total volume = 6 x 2 = 12 min > Recovery = 1 – - 1 0.3 x 12 1 = 78% > The difference in recovery is the result of a difference in the residence time distribution of particles in the bank which changes for more than one cell in series though the mean
A recent outcome of this effort at FLSmidth culminated in the development of the company’s new 600 Series SuperCell flotation machine. With an active volume of 660 m 3 the massive cell is considered to be the world’s largest operating flotation cell and makes it possible for users to take advantage of economies of scale.