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The technology's working principle is that two counter-rotating grinding rolls expose a column of material to high pressure, which is distributed across the gap between the rolls. Interparticle comminution is the HPGR specific grinding process in which material particles are crushed and ground within the compressed material bed and not by contact with the roll surface. 2016. 12. 19. •Roll Speed (m/s) •Moisture Content (%) •Feed Particle Size Distribution Specific throughput M* = throughput/D*L*V (ts/hm3) Flake thickness/strength in balance with the compressing force (floating roll situation) 2021. 4. 1. Highly efficient inter-particle grinding technology Superior quality stud-lined roll surface, industry leading wear protection (tungsten carbide material) Large roll sizes up to 3.0 m High size reduction ratio and micro- fracturing Small footprint Low vibration, low dynamic forces Low noise level, completely dust enclosed Energy Efficient. Our HPGR Rolls utilizes the principle of high pressure inter particle comminution to grind various types of ore, industrial minerals, or clinker for cement production. Using our proprietary edge, stud and roll design and unique state of-the-art wear technology, a CSP HPGR Roll consumes less energy resulting in reduced operational costs and exceptional long term reliability. 2017. 7. 29. POLYCOM® high-pressure grinding roll. The proven energy-saving grinding system. One of the principal reasons for the outstanding success of the high-pressure grinding roll in the cement industry is its low power requirement. Today, this mill is employed all around the world for the grinding of cement raw material, cement clinker and granulated blast Lower operating power required. Creation of microcracks for downstream processes. Provides a more stable grinding operation for variable ores. Reduces the need and consumption for grinding media. Optimise your results with our High Pressure Grinding Roll designed to What is HPGR? Used in mining applications for the last 30 years, high pressure grinding rolls (HPGR) reduce particles by compressing and crushing the feed between two counter rotating, parallel rollers with a small gap between them. This forces the rocks against each other and compresses the feed’s density to 80% of its solid volume, exceeding its compressive strength with equal pressure 2010. 1. 1. Low-purity hematite was crushed with high pressure grinding roll, and effects of operating factors such as roller surface pressure and speed, and ore 
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