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Roller for HPGR

Number of visits: Date:Apr 13,2016

Grinding technology has developed rapidly since 1980s, Roller press is also called extrusion mill or rolling mill, made a great progress of grinding technology first in the cement industry for increasing productivity and reducing costs.
Roller press includes two rollers rolling with the same speed. One roller is fixed on the bearing, the other one moves along level shift. Grinding starts while the material continually falls into the gap between the two rollers,. the rollers makes grinding material layer, the material is grinded with extrusion and friction, internal heat and fiction energy is strong enough to make material deformation, tearing, crushing, usually with the high pressure of about 100 mpa, then grinded material come out below the rollers. Initiated cracks in the grinded material after grinding contribute to further crushing process and greatly reduce the energy consumption.

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