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ABB the leading power and automation technology group announced that it has signed a contract with Polysius Corporation USA for the Penasquito High Pressure Grinding Rolls HPGR extension project The Penasquito property is located in the mining state of Zacatecas in Mexico Start 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
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Business Industries World Global High Pressure Grinding Roll HPGR Market Growth Forecast FL Co A/S Koppern Group KHD Humboldt Wedag International AG ABB Ltd Outotec Oyj SGS SA CITIC Heavy Industries Co Ltd CITIC HIC High pressure grinding rolls are an energy efficient grinding solution and now has improved this technology even further The HRC our innovative approach to HPGR technology is like no other HPGR on the market
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With high pressure grinding rolls firmly established on the mineral processing map advocates of this technology are looking to optimize its benefits ABB’s involvement with HPGR technology dates back to when its use in the mining industry diamond iron ore and hard rock intensified significantly Baden Switzerland September 24 ABB the leading power and automation technology group won an order to upgrade Anglo American Platinum’s high pressure grinding rolls HPGR drive system at the Mogalakwena North open pit mine South Africa
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ABB has manufactured variable speed drive systems for over 50 years We have delivered more drive systems for grinding solutions than any other supplier including 125 GMDs 112 RMDs and 46 HPGRs We have also increased drive performance through innovation enabling mills and rollers to become more powerful productive and profitableHigh pressure comminution process research is a fundamental element of process design in the such as Ammtec in Australia and Mintec in South Africa Specialists in High Pressure Comminution 7 Improved Cost Efficiency High pressure grinding roll presses HPGRs are emerging as an important comminution technology in the minerals processing
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High pressure grinding rolls A high pressure grinding roll often referred to as HPGRs or roller press consists out of two rollers with the same dimensions which are rotating against each other with the same circumferential speed The special feeding of bulk material through a hopper leads to a material bed between the two rollersHigh pressure grinding roll technology is gaining wider acceptance in non ferrous applications Newmont’s Boddington gold mine in Australia for example has installed four HPGRs shown here Photo courtesy of Polysius Suitability of HPGR to ore type The HPGR consists of a pair of counter rotating rolls one fixed and the other floating
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HPGR or high pressure grinding rolls have made broad advances into nonferrous metal mining The technology is now widely viewed as a primary milling alternative and there arc a number of large installations commissioned in recent years After these developments an HPGR based circuit configuration would often be the base case for certain ore types such as very hard abrasive orFrom high pressure grinding rolls to traditional primary and secondary grind ing mills ABB has worked with the industries leading mechanical suppliers to develop the most efficient and reliable electrical solutions The electrical design plays a role in determining the most economic and efficient grinding solution for a given plant
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POLYCOM Ž high pressure grinding roll953 Кб The larger the amount of grinding work performed by the high pressure grinding roll the greater is the energy savingThe self aligning roller bearings which compensate for tilting of the rolls have a multiple seal system to High pressure grinding rolls are preferred for their energy efficiency and flexibility in ore processing ’s unique take on this technology the HRC HPGR delivers even bigger as the most advanced high pressure grinding roll on the market
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ABB the leading power and automation technology group won an order to upgrade Anglo American Platinum’s high pressure grinding rolls HPGR drive system at the Mogalakwena North open pit mine South Africa The contract was awarded in the second quarter of rolls one ˛ xed and the other ˝ oating ˜ e ore is fed from a hopper into the gap between the rolls for crushing at high pressure ABB variable speed drive systems enable the grinding rolls to operate at optimal speed and provide accurate load sharing between the two rolls
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High Pressure Grinding Rolls Brunel’s proven ball detent design offers instant disconnect /quick reconnect Phone Fax brunelcorp Typical HPGR System with Dual ABB Master / Slave Drives Controlling High Speed Induction Motors Graphic Courtesy of ABB ABB the leading power and automation technology group won an order to upgrade Anglo American Platinum’s high pressure grinding rolls HPGR drive system at the Mogalakwena North open pit mine South Africa The contract was awarded in the second quarter of
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The order was booked in Q4 For the expansion project which aims to double the mine’s concentrator milling capacity from 60 000 to 120 000 t/d ABB is supplying two 25 ft gearless mill drive systems GMD of 15 MW and two complete high pressure grinding rolls HPGR drive systems of 2 High pressure comminution process research is a fundamental element of process design in the such as Ammtec in Australia and Mintec in South Africa Specialists in High Pressure Comminution 7 Improved Cost Efficiency High pressure grinding roll presses HPGRs are emerging as an important comminution technology in the minerals processing
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Baden Switzerland March 29 ABB the leading power and automation technology group was recently contracted to supply gearless mill drives GMDs for six ball mills and twin drive systems for eight high pressure grinding rolls HPGRs at Cerro Verde copper mine in PeABB has manufactured variable speed drive systems for over 50 years We have delivered more drive systems for grinding solutions than any other supplier including 125 GMDs 112 RMDs and 46 HPGRs We have also increased drive performance through innovation enabling mills and rollers to become more powerful productive and profitable
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Variable speed drive system for high pressure grinding rolls Reliable high pressure grinding and increased productivity High pressure grinding rolls HPGRs also known as roller presses are rapidly gaining acceptance in hard rock processing primarily due to ABB the leading power and automation technology group has successfully commissioned the world’s largest high pressure grinding roll HPGR drive system for the Boddington Gold Mine Expansion project in western Australia
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