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sag mill dual pinion geared drive

  • Gearbox Condition MonitoringUnderstanding Dynamic

    We re experiencing high gear mesh vibrations at certains speeds on our SAG Mill Pinion. It s a dual drive Mill. It s not gear defect or bearing related. We re thinking it may be process related. If anyone has experience resolving this type of vibration on SAG pinion systems to 8 MW per pinion and dual motor systems with quadruple pinions extend the range of gear driven mills to a theoretical limit of 32 MW. The Ernest Henry SAG mill (11 MW) is currently the largest twin pinion single drive mill installed in Australia. Problems have been experienced with the twin pinion drive at Fimiston and with the

  • SAG Milling in Australia -Revised Submission

    pinion systems to 8 MW per pinion and dual motor systems with quadruple pinions extend the range of gear driven mills to a theoretical limit of 32 MW. The Ernest Henry SAG mill (11 MW) is currently the largest twin pinion single drive mill installed in Australia. Problems have been experienced with the twin pinion drive at Fimiston and with the We re experiencing high gear mesh vibrations at certains speeds on our SAG Mill Pinion. It s a dual drive Mill. It s not gear defect or bearing related. We re thinking it may be process related. If anyone has experience resolving this type of vibration on SAG

  • ABB mill drives control systems chosen by Zijin for

    As part of the modernisation project, ABB will provide ring-geared mill drives and intelligent control systems for one SAG mill (2 x 6.5 MW) and one ball mill (2 x 7.5 MW), including electric control systems, drives, motors, transformers and end-to-end GMDs are used on the larger ball and semi-autogenous grinding (SAG) mills, where power transfer through the con- ventional gearbox, pinion and girth gear drivetrain becomes the limiting factor.

  • ABB ring geared mill drivesYouTube

    For more information http //bit.ly/15Iu5GG ABB continuously extends technical and performance frontiers of ring-geared mill drive technology to fit site req explained that in the past, grinding mills operating between 18MW and 28MW required a large electrical wrap-around motor, known as a gearless mill drive (GMD). The QdX4 mill drive system is an alternative option to the GMD. Until now, the gear-driven solution for large SAG and ball mills was limited to 18MW.

  • Outotec® MH Series Grinding MillsOutotec

    The automated lubrication systems are either a cabinet or drum type depending on the mill size and the application in question.The systems provide lubrication to the main bearings and seals, pinion bearings and seals, and pinion gear. Drive. A pinion assembly with lubrication system comes as standard, and includes the drive train with main gear Mill Pinion Gears Our high torque, high precision integral and non-integral mill pinions are used in SAG, horizontal ball mill and rotary kiln applications across the globe. Supplied as an individual component or as a fully optimised system comprising a girth gear, mill drive gearbox, pinion and barring drive, our pinions are manufactured

  • ABB Ring-Geared Mill Drives

    ABB ring-geared mill drive solutions correspond to the latest technology and are designed for reliable, long life and low maintenance operation. Different configurations can be designed for sin-gle- and dual-pinion mills. The most economical electrical capital expenditure is provided by ABB s high-speed solution—i.e., a combination of Feb 07, 2017 · Logistic challenge New stage goal. The arrival of the low speed dual-pinion mill drives for Collahuasi Copper Mine, Chile Siemens Mining

  • Ring-geared mill drivesGrinding ABB

    If in the past single pinion mills were enough to process all material, today dual pinion or gearless driven mills are necessary. Not only the mill equipment was adapted to exceed its technical and Our mills use conventional geared drives for transmitting up to 18,000 kW of power by use of a twin pinion system. Depend on years of proven reliability and productivity We ve been producing the highest quality SAG and AG Mills since the 1980s.

  • An electrical impact study between variable speed dual

    Conventional mining process circuits use both Semi-Autogenous Grinding (SAG) and Ball mills. It is very common that the SAG mills are operated with adjusta An electrical impact study between variable speed dual pinion mills and gearless mill drives Figure 1Top view of SAG mills with alternative drive options left side dual pinion drive including motor, gearbox, pinion and girth gear right side gearless ring motor Declining ore grades, leading to increased material transport and plant throughput requirements, are one of the

  • The arrival of Siemens low speed dual-pinion mill drives

    Feb 07, 2017 · Logistic challenge New stage goal. The arrival of the low speed dual-pinion mill drives for Collahuasi Copper Mine, Chile Siemens Mining http //industry The QdX4™ Mill Drive features internal torque splitting capability transmitting motor input power to the pinion shaft and equally dividing into two mill pinions. This type of torque splitting gear box

  • Outotec® MH Series Grinding MillsOutotec

    The automated lubrication systems are either a cabinet or drum type depending on the mill size and the application in question.The systems provide lubrication to the main bearings and seals, pinion bearings and seals, and pinion gear. Drive. A pinion assembly with lubrication system comes as standard, and includes the drive train with main gear For more information http //bit.ly/15Iu5GG ABB continuously extends technical and performance frontiers of ring-geared mill drive technology to fit site req

  • The arrival of Siemens low speed dual-pinion mill drives

    Feb 07, 2017 · Logistic challenge New stage goal. The arrival of the low speed dual-pinion mill drives for Collahuasi Copper Mine, Chile Siemens Mining GMDs are used on the larger ball and semi-autogenous grinding (SAG) mills, where power transfer through the con- ventional gearbox, pinion and girth gear drivetrain becomes the limiting factor.

  • ABB Commissions Dual-pinioned Mill Drives at Detour Lake

    ABB s supply scope included four dual-pinion low-speed mill drive systems for two SAG mills and two ball mills, each consisting of two synchronous motors, converter transformers and ACS6000 frequency converters. These include active rectifier units allowing the mill drives We are essentially providing up to twice the power transmission of a conventional dual pinion drive. Gearless mill drive (GMD) technology has further expanded the use of large SAG milling allowing to produce the world s largest SAG mill of 42 in diameter drawing power at 28 MW. Today, is the world leading supplier of gearless SAG

  • Mill drives the desire for increased power and the

    For single pinion and dual pinion drives, with 21 MW now a distinct possibility, the probability of pinion changes to a higher mill speed should always be considered when set-ting gear ratios, service factors, and motor power ratings. For gearless drives, motor torque output at the maximum desired operating mill speed and ball charge volume has to drive application is a dual-pinion SAG mill driven by two 5,000 kW wound rotor induction motors (WRIM). Two TMdrive-10SPRs control motor speed by recovering rotor current and returning the power to the utility supply. Confi gured in a twin motor arrangement, the motors share load in the tandem mill

  • QdX4™ Mill DriveMetso

    The natural progression in gear/pinion mill drives We are essentially providing up to twice the power transmission of a conventional dual pinion drive. Going from a dual pinion to a quad pinion arrangement is in fact the natural progression to a robust, innovative mechanical solution allowing our customers to move forward with large gear driven via a mechanical drive train with single or dual pinion and girth gear. This solution reaches its economic and design limits with increasing drive sizes. Today mills are powered by up to 20,000 kW (Figure 1) and mills with up to 32,000 kW are in the engineering stage.

  • Advantages of SER drives for SAG mills GoHz

    Dec 19, 2014 · For large mills requiring variable speed, the wound rotor motor and SER drive are economical for a total rating of approximately 2MW to 16MW. Above 16MW, the gearless drive (cyclo-converter) is typically used because gearboxes and pinion gears Gearless mill drives 26th June 2009 GMDs are used on the larger ball and semi-autogenous grinding (SAG) mills, where power transfer through the con- ventional gearbox, pinion and girth gear

  • ABB appointed to modernize Zijin Mining Group s copper

    ABB s solution provides dual pinion mill drives, frozen charge detection, controlled roll back, automatic positioning, variable speed and cascade monitoring functionalities. The dual pinion mill drive is a variable speed technology which will effect low mechanical stress impact on the pinion and ring gear by realizing precise load sharing drive application is a dual-pinion SAG mill driven by two 5,000 kW wound rotor induction motors (WRIM). Two TMdrive-10SPRs control motor speed by recovering rotor current and returning the power to the utility supply. Confi gured in a twin motor arrangement, the motors share load in the tandem mill. The Customer Need

  • ABB ring geared mill drivesYouTube

    For more information http //bit.ly/15Iu5GG ABB continuously extends technical and performance frontiers of ring-geared mill drive technology to fit site req via a mechanical drive train with single or dual pinion and girth gear. This solution reaches its economic and design limits with increasing drive sizes. Today mills are powered by up to 20,000 kW (Figure 1)

  • A Mechatronic Solution Design and Experience with Large

    via a mechanical drive train with single or dual pinion and girth gear. This solution reaches its economic and design limits with increasing drive sizes. Today mills are powered by up to 20,000 kW (Figure 1) and mills with up to 32,000 kW are in the engineering stage. The natural progression in gear/pinion mill drives We are essentially providing up to twice the power transmission of a conventional dual pinion drive. Going from a dual pinion to a quad pinion arrangement is in fact the natural progression to a robust, innovative mechanical solution allowing our customers to move forward with large gear