View Essay coal from COMPUTER 301 at UET Lahore Experiment Humphrey Coal Spiral Objectives 1 To perform a concentration test on the given coal sample 2 To determine
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Get PriceOriginally known as Humphreys spiral after the inventor a wide range of devices are now available A spiral concentrator consists of a helical conduit of semi circular cross section Feed pulp of between 15 and 45 percent solids in the size range 3 mm to 75 μm is introduced at the top of the spiral
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Get PriceHumphrey s spiral [ ′həm·frēz ‚spī·rəl] mining engineering An ore concentrator consisting of a stationary spiral trough through which ore pulp gravitates heavy particles stay on the inside and lighter ones climb to the outside
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