LUM Series Superfine Vertical Roller Grinding Mill
LUM Series Superfine Vertical Roller Grinding Mill

ring motor sag mill

  • Interface for Drives in Cement Plants - CiteSeerX

    Thus, the main fixed speed drives for SAG and ball mills are slip ring motors (also called wound rotor induction motor) and synchronous motors. Slip Ring Motors.

  • Literature Review: Gearless Motor Failures – A Mill Designer& 39;s .

    0 Sep 20 4 . Even the rotor poles of a ring motor are more complex than a mill . The SAG mill cracked through the flange and into the shell and this .

  • SAGmills semi-autogenous grinding mills -

    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 ding power at 28 MW. Today, is the world leading supplier of gearless SAG mills operating globally.

  • Drive Solutions for the Global Mining Industry - TMEIC

    Soft Starting One or Multiple Mill Motors, and Improved Power Factor . is a dual-pinion SAG mill driven by two 5,000 kW wound rotor induction motors (WRIM). . Slip Rings. Wound Rotor. Induction Motor. Liquid. Rheostat. Utility. Supply.

  • The Siemens 42ft gearless mill drive, still an evolutionary .

    analysis is the basis of the Siemens 42ft ring motor design. . The result is the design of a Gearless Mill Drive motor for . SAG-Mill GMD delivered by Siemens.

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  • What Are Ring Motors For Sag Mills

    Ringmotor driven SAG mill for gold . function of a trunnion on lube system on mills - mbba. sag mill trunnion lube ring gear lube. lubri ion systems for sag . Get Price And Support Online; sag mill slip ring motor – Grinding Mill China. ball mill slip ring specifi ion - crusherscreenplate. Synchronous Motors.

  • sagmillmotor stator کامل

    SagMill Syncronis Motor high axial vibration non drive . On site we have a Sag Mill Driven by a 5500KW Motor. We have a vibration issue right across the Mill. The highest vibration is 30mm/sec RMS axial on the motor non drive end bearing. White metal Bearing The gear mesh frequency is 4200 CPM. The dominant frequency is 2400 CPM.

  • Increasing availability through advanced Gearless Drive

    Gearless Mill Drive GMD systems are characterized by having the motor wrapped around the mill like a ring. For this reason, they are often referred to as ring motors. The rotor poles are attached directly to the mill head flange, and hence the rotor becomes an integral part of the mill, as shown in figure 4.

  • Increasing Availability through Advanced Gearless Drive . - CEEC

    SAG Mill, Ball Mill, Overland Conveyor, Antapaccay. 5 . The Gearless Mill Drive system consists of the ring motor with its feeding cyclconverter, pre- installed in .

  • SagMill Dual Pinion Geared Drive - kpjlangeveen.nl

    Finally the first field measurements on these low speed mill drives will be presented, with the main focus on the low mechanical stress impact of these mill drives on the pinion and ring gear, as well as the accuracy of the load sharing between the two motors KEYWORDS SAG mill, ball mill, ring gear, dual pinion, drive systems, variable speed

  • ring motor for ball mill - fotopalooza.nl

    Lo ed at Kennecott Utah Copper near Salt Lake, this mill uses a ring-motor drive, Figure 5. The SAG mill is followed by two 20-ft diam., 7,500-hp gear-driven ball mills. Cement mill motors Medium voltage motors. Slip ring electric motors for ball mill, cement mill and Seven Trust mills.

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    Search Motor For Sale. Compare Results on Zoo.com. Search For Motor For Sale & Get Awesome Results Find Top Results Qualitative Results Search and Find Now Search for More Multiple Search Related Information

  • Ring gear drives huge grinding mill | Machine Design

    Ring-motor drives were first used in cement industry mills and later in mining industry appli ions. The largest ringmotor- driven mill in the world is a 36-ft diam., 6,000-hp SAG mill that

  • SagMill Wrap Around Motor Grinding Mill China

    twin drive sag mill - bluegrassmd.us 7.76 m long, 26,0 6 HP 9,400 kw Siemens wrap around drive motor on large AG, SAG and ball mill ball mill. Scott Hunsicker Scott Hunsicker。

  • hs code of ball mill drive motor - topevion.de

    Lo ed at Kennecott Utah Copper near Salt Lake this mill uses a ring-motor drive Figure 5. The SAG mill is followed by two 20-ft diam. 7 500-hp gear-driven ball mills. What is …

  • Ring-geared mill drives - Grinding | ABB

    Ring-geared mill drive system. High performance and flexibility in grinding. Decreasing global mineral resources, exploitation of lower ore grades in more remote .

  • Mining - Grinding and Processing | WEG

    Variable Speed . Single or double pinion driving systems. Designed to drive and control the speed of the medium voltage motors coupled to the SAG/AG, ball and HPGR mills with single or double pinion, the MVW0 frequency drive uses state of the art technology through a multilevel structure with medium voltage IGBTs, reducing the harmonic currents on the motor to extremely low levels.

  • Ok Tedi plans for long term with SAG mill upgrades by

    For SAG 2, Siemens supplies two 8 pole, high speed induction motors to replace the existing slip-ring motors, eliminating all brush or slip-ring related outages and maintenance activities. The four identical variable speed drives VSD operating all four mill motors are Sinamics Perfect Harmony GH 80 units.

  • ABB ring geared mill drives - YouTube

    5 Jun 20 3 . We provide optimized mill drive solutions for all types of ring-geared mills: low . optimized solutions for grinding appli ions such as AG, SAG and ball mills. . ABB drives - simple and reliable motor control with ACS 2000.

  • ABB ring geared mill drives - YouTube

    在必应上点击查看3:075/06/20 3 & 0 83;& 32;For more information: bit.ly/ 5Iu5GG ABB continuously extends technical and performance frontiers of ring-geared mill drive technology to fit site req 作者: ABB

  • Paper 25 - Copper Mountain Overview on the Grinding

    the accuracy of the load sharing between the two motors. KEYWORDS SAG mill, ball mill, ring gear, dual pinion, drive systems, variable speed INTRODUCTION The project is lo ed 5 km southwest of Princeton, British Columbia BC , an established mining town. The initial exploration at Copper Mountain dates back to 884. In 923, Granby

  • ABB acquires ring motor business from Alstom

    The motor power, so far, can go up to 28 megawatts for such an appli ion. An infographic of the ring motor and further visual materials can be found here. Seven Trust material from the crushing stage is typically fed to SAG semi-autogenous , AG autogenous and ball mills for further processing to break the rock into smaller pieces.

  • Sentinel: Siemens Gearless Mill Drives - YouTube

    The mills at Sentinel in Zambia are amongst the world’s biggest, with 2 off 40 ft SAG mills complete with 28 MW drives, and 2 off 28 foot-ball mills with 22 MW drives. ABB ring geared mill

  • SAG Milling in Australia -Revised Submission

    The CCV – ring motor gearless drive is used at Cadia 20 MW and Olympic Dam 8 MW . It has been the industry standard for SAG mills above 3 MW capacity. However, 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

  • Ring gear drives huge grinding mill | Machine Design

    SAG mills can operate at a fixed speed or adjustable speed through the use of ac synchronous motors or dc motors. They typically range up to 6,000-hp. A .

  • When it Comes to Mining, Bigger is Best | PTE

    An SABC circuit consists of a semi-autogenous grinding (SAG) mill, ball mill, and . For example, ring-geared mill drive (RMD) systems are good solutions when the . In the GMD solution the drum of the mill forms the rotor of the motor, with the .

  • Sentinel: Siemens Gearless Mill Drives - YouTube

    The mills at Sentinel in Zambia are amongst the world’s biggest, with 2 off 40 ft SAG mills complete with 28 MW drives, and 2 off 28 foot-ball mills with 22 MW drives. ABB ring geared mill

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  • Why do we use carbon brushes in a slip ring motor? - Quora

    The carbon brushes are used in slip ring motor for the following reasons. . The carbon is conductor of electricity. 2. The carbon is soft meterial and when it touches to the slip ring it wears. The slip ring is made of steel or phosporous bronze .

  • ABB buys ring motor business to boost its gearless mill drives .

    30 Jul 20 3 . ABB is buying Alstom& 39;s ring motor business to enhance its gearless mill . enough to rotate a 2.8m SAG (semi-autogenous) mill at 8.9rpm.

  • gearless mill drives Archives - International Mining

    25 Oct 20 9 . Unlike more traditional ring-geared mill drives – where a ring-shaped gear . it with the stator ring, meaning the mill itself is incorporated into the motor. . semi-autogenous (SAG) and/or ball mills,” says Marcelo Perrucci, .

  • hs code of ball mill drive motor

    The mill used for this comparison is a 4.4-meter diameter by 3.6 meter long ball mill with a 5000 HP drive motor. It is designed for approximately 90 s.ton per hour. This type two-compartment mill is a state- of-the-art shell supported cement finish mill. The torque and time requirements of the mill with the ball

  • gearless ring motor for sag mill principles

    gearless sag mill slip ring motor ofspescaracolli what are ring motors for sag mills bsmr-doesburg ABB's Gearless mill drive system is the (SAG) ball and autogenous (AG) mills excitation via the slip rings to the rotor of the gearless motor abb drives sag mill dctm gearless ring motor for sag mill principles Grinding gearless ring motor for sag

  • SAG Mill Grinding Circuit Design - 9 metallurgist.com

    Semi Autogenous Design FactorsSag Mill Operation ExampleProcess Plant DescriptionSag Mill Design and Specifi ionOperating Problems Since CommissioningDesign Changes and Future Operating StrategiesThe design of large mills has become increasingly more compli ed as the size has increased and there is little doubt that without sophisti ed design procedures such as the use of the Finite Element method the required factors of safety would make large mills prohibitively expensive. In the past the design of small mills, up to /- 2,5 metres diameter, was carried out using empirical formulae with relatively large factors of safety. As the diameter and length of mills increased several critical problem areas were iden…

  • Gearless Mill Drives Beneficiation Global

    The Siemens 42-ft Gearless Mill Drive, still an evolutionary design approach? SAG Conf. 20 5 Optimization of the drive system for a cyclone feed pump SME 20 5 Increasing availability through advanced Gearless Drive Technology CMP 20 4 Design and dynamic behavior of large ring motors for grinding mills SMMH 20 2

  • PDF Evaluation of synchronous motors on grinding mills

    The c ombined motor and mill inertia is Ball mills and SAG mills, the slip-ring Induction motors are often preferred to synchronous motors due to their inherent ability to

  • RingMotor For Ball Mill - kpjlangeveen.nl

    9-2-20 7· - Starting a 6kV 3Ph 50Hz - 2,200kW - ,000rpm slip-ring motor for a cement ball mill. 00:55 - Starten eine 6kV 3Ph 50Hz - 2,200kW - ,000rpm Schleifringmotor für ein Zement-Kugelmühle.

  • SAG MILLING - Gearless drive system from ABB - Canadian

    In December 200 , Gold Fields acquired the St. Ives project near Kalgoorlie, and only in 2003 did the new owner decide to go ahead with the project and to install the 36-ft SAG mill and its 3.5-MW gearless mill drive at St. Ives.

  • ABB acquires ring motor business from Alstom - Mineral Processing

    “The acquisition will combine the leading ring motor product from Alstom with . is typically fed to SAG (semi-autogenous), AG (autogenous) and ball mills for .

  • Copper Mountain Overview on the Grinding Mills - 9 .

    KEYWORDS. SAG mill, ball mill, ring gear, dual pinion, drive systems, variable speed . mm [ 7.5 feet]. The mill is driven by two 8,500 horsepower ABB motors.

  • (PDF) Evaluation of synchronous motors on grinding mills

    Figure SAG Mill and synchronous motor . dback is that the brush and slip ring setup requires regular maintenance to replace brushes due to brush wear.

  • AYCA Services SAG mill Ring Motors - A&CA

    SAGmillRingMotors Ball mill Ring Motors Frequency Converters High current rectifiers for EW tank houses Medium and high power synchronous motors Routine maintenance, minor and major shutdowns in SAG GMD drives. Dielectric recovery through the appli ion of “Cryogenic Cleaning” in electric machines.

  • Milling - Energy intensive and high maintenance

    ring-geared mills. In fact the rotor of the ringmotor is the mill itself and the stator is built around the mill shell. This is also the reason why the ring motor is also known as wrap-around motor. 9 2 6 8 36 Presently SAG mills are mainly driven with variable speed drives, allowing the operator to react easily to the changes in ore

  • Ring-geared mill drives - Grinding | ABB

    Ring-geared mills operated with frequency converter (much more than just variable speed) (English - pdf - Article) Use of the latest technology to overcome the demands of mill operation (English - pdf - Article) Ring-Geared Mill Drives - Flexible and smooth operation - Brochure (English - pdf - Brochure)

  • What Are Ring Motors For Sag Mills

    A SAG mill with a 44' ( 3.4m . SAG mills are primarily used at gold, . Get Price And Support Online; sag mill ring gear failure iqsa. SAG mill pinion gear alignment: . motor power to the. slip ring induction motor for sag mills. and induction motor for the SAG mill, and Liquid Rheostat Starter (LRS) and slip ring motor for the ball mill. Get

  • Industrial Solutions Autogenous,

    SAGmill with COMBIFLEX drive for gold ore grinding. Ball mill with ring motor drive. Brake of a ring motor drive. 8 Flotation Wet grinding Grinding is one of the most energy-inten-sive production stages and therefore has a substantial energy-saving potential. The main demands made on grinding

  • Literature Review: Gearless Motor Failures – A Mill

    The Collahuasi motor was for a 40 ft SAG mill. The Antamina 38 ft SAG mill was also driven by an ABB motor and the hanger plates had not failed on that machine after several years of operation. Similarly, the Sossego motor for the 38 ft SAG mill had not failed. It too had an ABB motor and it had operated longer than the Collahuasi motor.

  • Design and dynamic behavior of large Ring Motors for

    RingMotors vary the speed of the mill by changing the sta-tor frequency. A cycloconverter provides variable frequency for start, stop and speed variation during operation. Figure : Ring Motor of the 38’ SAG-Mill of Rio Para ú Mineraçao; Brazil 3 Design Verifi ion To assure reliability of operation the mechanical design must be verified.

  • What Are Ring Motors For Sag Mills

    ring motor sag mill. . motor driving one of the SAG mills at its Cadia operations led to the .synchronous motors, UPS, process and intelligent controls, . Get Price And Support Online SAG Mills - Used Mineral Processing Equipment / Used .

  • Gearless Drives - static.dc.siemens.com

    autogenous grinding SAG mills in the framework of an order for two 32-foot SAG mills with a performance of ,200 kW. This project for the Chuquicamata mine in Chile represented a monumental achievement, as the difference between creating a drive for a 2 -foot diameter ring motor and a 32-foot ring motor re-

  • Mill grinding - Wikipedia

    SAG is an acronym for semi-autogenous grinding. SAG mills are autogenous mills that also use grinding balls like a ball mill. A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 2 %. The largest SAG mill is 42' 2.8m in diameter, powered by a 28 MW 38,000 HP motor.Related items: Mortar and pestle, Expeller, Extruder

  • Phoenix: Big mill and latest tech keep long-lived mine

    “The motor on our SAG mill is the fascinating part for me,” Hope said. “The mill is its own motor,” Tucker explained. “The mill is what would be considered the rotor in a motor.

  • Gear Motors Available - The Right Combination For You

    Wide selection - you are sure to find the gear motor that is right for your project. Narrow your results with our useful filter by setting known parameters.

  • Advantages of SER drives for SAG mills GoHz.com

    Advantages of SER drives for SAG mills. Friday, December 9, 20 4 So for a fixed torque and higher speed, the power obtained from the motor is higher than the motor nameplate rating. Brush/slip ring maintenance is one issue. However, when the brushes are specified correctly for the load, the wear is manageable.