How You View the Optimization of Gold Screw Separator?

Spiral concentrators can be made with multiple starts (multiple spirals interwound) to save floor space. I have seen up to 3 start spirals, which would essentially give 3 spirals in about the same space that one would take up. Spiral concentrators are normally used in banks of multiple spirals. Typical capacities for spirals run from 1-3 tons per hour of feed for minerals and 3-5 tons per hour for coal. Typical construction of a spiral concentrator is fiberglass and urethane to reduce wear from abrasion.

The three significant operational parameters of spiral concentrator, such as feed rate (m3/h.), feed pulp density (% solids by wt.), splitter position (radial distance from the central axis in cm) were considered for the investigation. The obtained results were evaluated with the Box–Behnken factorial design, RSM and also Quadratic Programming (QP). Second-order response functions were produced for Cr2O3 in terms of grade (%) and recovery (%) of the concentrate fraction. Taking advantage of the QP, it was observed that maximum grade of 51.05% Cr2O3 achieved at the feed rate of 1.2 m3/h, feed pulp density of 14.81% solids by wt. and splitter position of 12 cm. Similarly, maximum Cr2O3 recovery of 46.73% can be achieved at the same feed rate, feed pulp density of 10% solids by wt. and 16 cm of splitter position.

The term spiral separator can refer to either a device for separating slurry components by density, or for a device for sorting particles by shape. Here, these are termed wet anddry spiral separators, respectively. Many things can be done to improve the separation efficiency of gold screw separator, they includes: Changing the rate of material feed; Changing the grain size of the material; Changing the slurry mass percentage; Adjusting the cutter bar positions; Running the output of one spiral separator (often, a third, intermediate, cut) through a second. Adding washwater inlets along the length of the spiral, to aid in separating light minerals; Adding multiple outlets along the length, to improve the ability of the spiral to remove heavy contaminants.

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