Transcription of TECHNICAL NOTES 4 VIBRATING SCREENS - Mineral Tech
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Copyright R P King 2000 TECHNICAL NOTES 4 VIBRATING SCREENS4-1 SIZE CLASSIFICATIONIt is always necessary to control the size characteristics of particulate material that is fed to processequipment that separates the mineralogical components. It is not possible within the productionenvironment to exercise precise control over the size of all particles in a population and, in mostcases, size classification equipment is designed to split a feed of particulate material into a coarseand a fine product. Occasionally one or two product streams of intermediate size may be producedsuch as by a double or triple deck screen . Probably the most common application of sizeclassification is its use to prevent oversize material leaving a comminution circuit.
4-3 half of the screen mesh size, the half-size factor will exceed unity and vice versa. K2 2P F(0.5h) 0.2 (4-5) The oversize factor K3 A screen can handle a greater tonnage of feed material that contains large quantities of oversize
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