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 ores
The Cerro Verde Primary Sulfide Project was an expansion of existing processing facilities that extract copper from oxide copper ore using conventional heap leach and SX/EW technology The concentrator processes sulfide copper ore from existing mining pits approximately tripling annual production at the site from 100 000 tonnes of copper to
At Cerro Verde HPGR tire wear life is projected conservatively as 6 000 hours is equivalent to SAG mill shell liner lives Based on this it was felt that HPGR liner wear does not represent a significant technical risk to the implementation of HPGR technology
Cerro Verde is a Peru-based mining company Its activities include the extraction exploitation and production of copper from the porphyry copper deposit located southeast of the city of Arequipa In addition the company holds a copper sale agreement with Sumitomo Metal Mining
A further aspect is the increase in mill throughput During the Cerro Verde project the throughput of the HPGRs was increased by 20 % in several optimization stages from 108 000 t/d (2006) to the current 130 000 t/d In 2001 KHD received its first order for an HPGR for the comminution of gold ore from Suchoi Log of Russia [6]
The 240 000 tpd Cerro Verde Production Unit Expansion concentrator design is based on conventional copper sulfide flotation unit operations replicating the C1 process but includes larger process equipment at a separate location on the mine property
HPGR – REVOLUTION IN PLATINUM? 21 Introduction 'Acceptance of the HPGR in the hard rock sector has been slow and cautious but has come to maturity in the successful commissioning of the Cerro Verde project' (Morley C 2008) High pressure grinding roll (HPGR) technology has been the subject of many technical presentations in the minerals
Comminution systems today and tomorrow VDMA Minerals Symposium Lima May 3rd 2013 Rilmar Ojeda HPGR in Hard Rock Comminution Freeport – Cerro Verde Peru First Copper Concentrator built on HPGR technology Freeport - Cerro Verde
ABB points out two typical examples of recent HPGR installations with variablespeed drive systems—the Cerro Verde copper mine in Peru and Adanac's Ruby Creek molybdenum operation in Canada The Cerro Verde Polysius HPGRs have 2 x 2 500-kW VSD Twin drives offering an operational speed range of 360–1 200 rpm and a power factor of 0 96
cerro verde cone crushers - deptoflawseminar cerro verde hpgr sizing Developed a line of 7 different size cone crushers ranging from Crusher Contacter le fournisseur cerro verde copper processing flowsheet cerro verde cone crushers cerro verde copper processing flowsheet hold a 21% equity interest in the Cerro Verde Copper Mine
HPGR—FAQ by C Morley* Synopsis The successful commissioning of the Cerro Verde project in Peru at the end of 2006 marked the culmination of the efforts of many in the industry over many years to have high pressure grinding roll technology recognized and accepted as a legitimate alternative to
Mar 29 2012ABB a 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 Peru
Cerro Verde's four HPGR Polycoms 24/17 Cerro Verde is a copper-molybdenum concentrator The circuit consists of four (4) HPGRs rolls 2 4 m diameter x 1 65 m wide working in closed-circuit with eight (8) 3 x 7 3 m wet screens Each is powered by 2 x 2500 kW variable speed drive units They were commis-sioned at the end of 2006
Cerro Verde's four HPGR Polycoms 24/17 Cerro Verde is a copper-molybdenum concentrator The circuit consists of four (4) HPGRs rolls 2 4 m diameter x 1 65 m wide working in closed-circuit with eight (8) 3 x 7 3 m wet screens Each is powered by 2 x 2500 kW variable speed drive units They were commis-sioned at the end of 2006
came into operation in Cerro Verde mine in 2006 and have the longest service life by now Mogalakwena began using one HPGR Polycom-22/16 in 2008 and four HPGR Polycom-24/17 have been operated in Boddington mine since 2009 UDC 622 732 M KESSLER E BURCHARDT (ThyssenKrupp Resource Technology) HIGH PRESSURE GRINDING ROLLS—A PROMISING
Es as como despus de muchos aos de aplicacin y consolidacin en faenas mineras de la industria del cemento el hierro y los diamantes en 2006 comenz una nueva arremetida en la industria del cobre de hecho ya Freeport McMoRan tiene cuatro modelos 24/17 operando en su mina de cobre y oro Cerro Verde en Per y dos modelos 20/15 en
Morrison Project - HPGR Trade-off Study Mining companies are now beginning to incorporate HPGR technology Freeport is a mining company that has taken the lead in introducing the HPGR at the Cerro Verde copper mine in Peru The circuit at Cerro Verde incorporates four HPGR units (2 4 m
The Cerro Verde mine is a very large copper mine located about 20 miles southwest of Arequipa in southwestern Peru Cerro Verde represents one of the largest copper reserves in Peru and in the world having estimated reserves of 4 63 billion tonnes of ore grading 0 4% copper and 113 2 million oz of silver
As como Cerro Verde otras que utilizarn tecnologa HRC de son Las Bambas y El Brocal y entre las empresas que se han acercado a indagar por esta figuran Volcan y Chinalco segn Lus Chia gerente de ventas senior de Capital Equipment de Per Y pruebas piloto se han hecho en la operacin Tintaya de Glencore
Mining companies are now beginning to incorporate HPGR technology and Phelps Dodge (now Freeport-McMoRan Copper Gold Inc ) is an example of a mining company that has taken the lead in introducing HPGR at Cerro Verde mine in Peru in 2006 The circuit at Cerro Verde incorporates
'Acceptance of the HPGR in the hard rock sector has been slow and cautious but has come to maturity in the successful commissioning of the Cerro Verde project' (Morley C 2008) High pressure grinding roll (HPGR) technology has been the subject of many technical presentations in the minerals comminution fraternity ever since the
HISTORIA DE LOS HPGR • El origen de la tecnologa HPGR se remonta a los inicios del siglo XX donde se utiliz en la briquetizacin de carbn • En el ao 1985 la tecnologa fue introducida en la industria del cemento Actualmente ste es el sector industrial que utiliza mayor cantidad de molinos HPGR en el mundo
the HPGR bins whereas Cerro Verde has the coarse screen oversize conveyed up and through two 4 90 transfers then up again to discharge into the HPGR feed bins (effectively double the distance and height of the equivalent stream at Boddington) The key output of Table 1 is the determination of what proportion of a conveyor's power is not
Whereas the HPGR drive systems work in accordance with the high demanding requirements for such machines without using tachometers or encoders ABB already supplied mine electrification and various drive systems also including GMDs and HPGR drives for the previous greenfield Cerro Verde project in
En general la molienda con HPGR se aplica en minerales competentes que presentan un alto CEE y la molienda SAG es recomendada para minerales de un bajo CEE As algunas instalaciones que han aplicado con xito la tecnologa con HPGR en yacimientos de cobre son Cerro Verde (Per) en 2006 y Boddington (Australia) en 2010
By providing sustainable solutions for HPGR applications ABB has set the standard in the minerals and cement industries Plants such as CVRD San Luis Cerro Verde and Boddington have been successfully operating with Polysius HPGR applications for several years The Spinifex Ridge project has a resource of 658 million tonnes of molybdenum and
Copper Hydrometallurgy Heap/stockpile leaching Early 1900s Iron cementation Early 1900s Direct electrowinning Early 1900s Roasting leaching electrowinning 1960-70s SX/EW 1970-80s Enhanced sulfide heap/stockpile leaching 1990-2000s Cerro Verde HPGR Rolls
48 Cada de personal a chute de descargas de HPGR Operaciones Concentradora Metalurgia C1 - C2 MEDIO 49 Intoxicacin por inhalacin de H2S Operaciones Concentradora Metalurgia C1 - C2 MEDIO 50 Ahogamiento caidas a distinto nivel Operaciones Concentradora 1
Also "HPGR also offers improved plant ramp-up times compared to SAG-based circuits as an HPGR can operate at full throughput almost immediately and has very high mechanical availability" (C Morley Fluor Australia in the 2010 SAIMM paper HPGR—FAQ In the 2012 CIM paper Cerro Verde concentrator – four years operating HPGRs S
1 2 UBICACIN GEOGRAFICA Sociedad Minera Cerro Verde S A A (SMCV) opera una mina de cobre al sudeste del Per aproximadamente a 25 Km del sur de la ciudad de Arequipa a una altura de 2700 msnm esta se ubica exactamente en el asiento minero Cerro Verde localizado a su vez en la concesin minera Cerro Verde 12
cerro verde hpgr sizing - vajirasri cerro verde cone crushers crusherscreenplate hpgr comminution for optimization of copper leaching sme 2 may 2011 tory jaw crusher to a p80 of 6 35 mm a cone crusher has a fixed part and a mobile part Read More Impact Crusher For Sale In Verde - nilatech
El proyecto de US$1 600 millones Mina Justa dejar a un lado la tecnologa de molienda SAG y optar por los rodillos de molienda de alta presin (HPGR) tal y como lo han hecho Cerro Verde y Toquepala Enrique Rodrguez gerente general de Marcobre en una entrevista con este medio confes
Furthermore after commissioning the HPGR roller wear life was found to average 5000 h with expectations to achieve 6000 h with improved profile design (Hart et al 2011) Cerro Verde has a design capacity of 108 000 t/d of hard copper-molybdenum ore (average BWi of 15 3 kWh/t)
La inauguracin de la expansin de Cerro Verde el pasado 23 de mayo es el resultado de un trabajo conjunto entre la empresa y los colaboradores que en su mayora (70%) son de Arequipa y del dilogo y cooperacin conjunta con las autoridades locales regionales y nacionales El desarrollo de las actividades previstas en el cronograma de la minera se realiz en armona con las
The 240 000 tpd Cerro Verde Production Unit Expansion concentrator design is based on conventional copper sulfide flotation unit operations replicating the C1 process but includes larger process equipment at a separate location on the mine property
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