40 foot autogenous grinding mills

  • AG mills for Sino Iron Project Australian Mining

    Five 40-foot AG (autogenous grinding) mills will be used for grinding the ore. For the ore mills, Siemens is supplying the gearless drives, each with an output of 28 MW. These systems are the most

  • OUTOTEC GRINDING TECHNOLOGIES

    4 Autogenous and semi-autogenous mills Outotec has delivered everything from small, low-cost, single-stage SAG mills to the largest mill in the world with a 40-foot diameter and 28 MW of motor power. Ball mills Ball milling is the most common application for

  • Semi Autogenous Grinding Mill Mt Milligan

    Semi autogenous grinding mill mt milligan-Henan Mining ABB commissions mills at Mount Milligan International Mining. ABB's delivery included one gearless mill drive system (GMD) for a 40 ft semi-autogenous mill and two low-speed dual pinion ring-geared mill drive systems (RMDs) for two 26 ft ball mills; making Mount Milligan's grinding circuit one of the most advanced and powerful in North America

  • Sag Mill Grinding Ball Automation

    After extrac-tion in the open-pit mine, the ore is crushed in a huge 40-foot semi-autogenous grinding sag mill and two 27-foot ball mills, all three of which are driven and controlled by abb gearless mill drive systems with a massive power output of 22.4 and 18.6

  • Blasting for Improved Autogenous Milling at Hibbing Taconite

    Fully autogenous mills rely on the large, competent fraction of feed to act as grinding media. 40 foot depth 5 feet of sub drilling 18 feet of stemming water resistant anfo blend (70/30) Burden and spacing is varied according to the following table: Design Burden

  • CONGA: THE WORLD’S FIRST 42 FOOT DIAMETER 28 MW

    2 CONGA: THE WORLD’S FIRST 42 FOOT DIAMETER 28 MW GEARLESS SAG MILL ABSTRACT In 2010 Newmont made the decision to purchase a 42 foot (ft) Semi-Autogenous Grinding (SAG) mill from peter&x and a 28 Mega-Watt (MW) Gearless Mill Drive

  • Autogenous AG & SAG Mills for Sale 911Metallurgist

    Starting as small as 13 feet (4 m) in diameter on 330 HP and as large as 24' (14.5 m) in diameter on 3,300 HP, the 911MPE Semi & Fully Autogenous Mills tumble crushed ore without iron or steel grinding media. They are used when the crushed ore pieces are hard enough to perform all the grinding. SAG mills tumble mainly ore but they use up to 15% volume of steel balls to assist grinding

  • US3404846A Autogenous grinding mill Google Patents

    AUTOGENOUS GRINDING MILL Original Filed Oct. 9, 1962 8 Sheets-Sheet 2 a E i i a FIG. 3: IN VENTOR5. Iii/7 i. Ml: FJ IIJ'd/V 11k g far/er Oct. 8, 1968 A. R. MacPHERSON ETAL 3,404,846 AUTOGENOUS GRINDING MILL 8 Sheets-Sheet 5 Original Filed

  • Gearless Drives Siemens

    autogenous grinding (SAG) mills in the framework of an order for two 32-foot SAG mills with a performance of 11,200 kW. This project for the Chuquicamata mine in Chile represented a monumental achievement, as the difference between creating a drive for a 21-foot

  • Autogenous and Semi-Autogenous Mills ScienceDirect

    1/1/2016· Mills that use intermediate size rock or pebbles as a grinding medium are also autogenous mills but are known as pebble mills. Mills that grind hard ores with fracture characteristics that do not lend themselves to fully autogenous milling are charged with a

  • OUTOTEC GRINDING TECHNOLOGIES

    4 Autogenous and semi-autogenous mills Outotec has delivered everything from small, low-cost, single-stage SAG mills to the largest mill in the world with a 40-foot diameter and 28 MW of motor power. Ball mills Ball milling is the most common application for

  • Sag Mill Grinding Ball Automation

    After extrac-tion in the open-pit mine, the ore is crushed in a huge 40-foot semi-autogenous grinding sag mill and two 27-foot ball mills, all three of which are driven and controlled by abb gearless mill drive systems with a massive power output of 22.4 and 18.6

  • Mineral processing in the digital age Australian Mining

    Bradken is working on a digital simulation model that has potential to revolutionise the way grinding mills are designed the improvements on a 40-foot semi-autogenous grinding (SAG) mill for

  • Blasting for Improved Autogenous Milling at Hibbing Taconite

    Fully autogenous mills rely on the large, competent fraction of feed to act as grinding media. 40 foot depth 5 feet of sub drilling 18 feet of stemming water resistant anfo blend (70/30) Burden and spacing is varied according to the following table: Design Burden

  • CONGA: THE WORLD’S FIRST 42 FOOT DIAMETER 28 MW

    2 CONGA: THE WORLD’S FIRST 42 FOOT DIAMETER 28 MW GEARLESS SAG MILL ABSTRACT In 2010 Newmont made the decision to purchase a 42 foot (ft) Semi-Autogenous Grinding (SAG) mill from peter&x and a 28 Mega-Watt (MW) Gearless Mill Drive

  • Autogenous AG & SAG Mills for Sale 911Metallurgist

    Starting as small as 13 feet (4 m) in diameter on 330 HP and as large as 24' (14.5 m) in diameter on 3,300 HP, the 911MPE Semi & Fully Autogenous Mills tumble crushed ore without iron or steel grinding media. They are used when the crushed ore pieces are hard enough to perform all the grinding. SAG mills tumble mainly ore but they use up to 15% volume of steel balls to assist grinding

  • Gearless Drives Siemens

    autogenous grinding (SAG) mills in the framework of an order for two 32-foot SAG mills with a performance of 11,200 kW. This project for the Chuquicamata mine in Chile represented a monumental achievement, as the difference between creating a drive for a 21-foot

  • Publications SMC Testing

    The Modelling Of Autogenous And Semiautogenous Mills Design Of The 40 Foot SAG Mill Installed At The Cadia Gold Copper Mine The Prediction Of Power Draw In Comminution Machines Developments In AG/SAG Mill Modelling Tracking And Quatifying Value

  • FULLY AUTOGENOUS GRINDING AT UNKI MINE

    The Southern African Institute of Mining and Metallurgy Platinum 2012 361 T. Nyakudarika, S. Makumbe, C.Rule FULLY AUTOGENOUS GRINDING AT UNKI MINE CONCENTRATOR A CASE OF SUCCESSFUL VALUE ENGINEERING T. Nyakudarika DRA

  • Testing for autogenous and semiautogenous grinding:

    This paper reviews current testing methods for sizing autogenous and semiautogenous mills in the North American context with comments on the necessity for test work and requirements for different circuits and equipment selection. The economics of testing and