Heavy Media Separation
In beneficiation plant , as a important way of gravity separation , Heavy media separation (HMS) has been used industrially to ---Produce a finished concentrate and a rejectable waste in one operation ---Reject a relatively coarse waste leaving an enriched product ready for further processing (a step that can greatly reduce expensive grinding costs) ---Produce a finished concentrate and a lower-grade product ready for further processing ---Produce two finished products of differing composition Ordinarily, HMS is used for the first two of these functions—the first for coal, the second for ores. The most successful way to achieve a float – sink separation has been to use a quasi-stable suspension of a solid that is appreciably heavier than the mineral to be floated. Various solids have been employed to make an aqueous heavy media suspension (Table 1). Silica sand in an inverted conical vessel is used in the Chance Cone system,. Because this suspension is relatively unsta...