DOVE ® Spiral Concentrators are widely used in the closed circuits with ball mills, grading ore or gravity concentration, fine mud, metal beneficiation process, slurry particle size classification, sand ore and fine silt classification in the gravity dressing plants, dehydration, washing off mud and other operations.
Ira Boyd Humphreys ("I.B." was preferred), the mechanical genius of the famed Humphreys family, was the sole inventor of the Humphreys Spiral Concentrator. Its economical concentration permitted the utilization of low-grade ores previously regarded as having no value.
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