Abstract
By a technique involving injection of closely sized batches of Perspex spheres into the feed of a 3 in. hydraulic cyclone, the effect of several variables on solid elimination efficiency have been investigated. A 1 4 in. feed diameter results in maximum efficiencies on this cyclone for a wide range of conditions. It is considered impossible to derive simple power relationships to describe the effect on particle elimination efficiency of change in feed diameter, overflow diameter and throughput, to cover a range including the optimum conditions. The importance of turbulent mixing in the feed section due to shock effects and of the short circuit flow down the outside wall of the vortex finder have been demonstrated.
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