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synchronous motor clutch mill

  • Clutches for Grinding Mills Eaton

    mills with synchronous mo tors, or high speed motor and gearbox designs with the clutch mounted on the output shaft of the gearbox, to avoid the need for the additional costly invest ment required for high torque equipment. Where speeds permit, Airflex® clutches can also be used for inching or jogging the grinding mill 

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  • Allis Chalmers 13' x 21' ball mill, 2000 HP Machinery & Equipment

    Description: Ball Mill, 13' Diameter X 21' Long, Manufactured By Allis Chalmers (Svedala), RubberLined Mill, With SiemensAllis 2,000 Hp, 4000 Volt, 200 Rpm Synchronous Motor, Eaton Airflex Clutch. Includes Trommel Discharge, Ball Mill Rejects Conveyor, Lube System, Etc. Offered Complete With Controls. New In 

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  • Mills and GMDs ABB

    Mills and GMDs. Maarten van de Vijfeijken* looks at large, larger and the largest units in grinding ore. The gearless motor (also called wrap around motor or ring motor) is a very large synchronous motor. The poles of the motor are directly gear, pinion, gearbox, coupling or air clutch, motor shaft and motor bearings.

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  • Eaton Airflex Gringing Mill Product SlideShare

    Jun 8, 2016 S Airflex Dual VC Clutch Pinion Low Torque Synchronous Motor Typical Drive with Clutch 5. S 650% 175% 250% Amperage Time LowTorque Synchronous Motor Start Clutch Engagement High Torque Motor Start Time to Start Mill with Either Drive LowTorque Synchronous Motors Require Less 

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  • US2939023A Synchronous homopolar magnetic clutch Google

    The metal employed for coating or covering the teeth serves at the same time as a support to magnetic parts. When one rotor is previously rotating and one switches on the energizing current, the other rotor is progressively driven for rotation like the rotor of a homopolar asynchronous motor. For given dimensions, the torque 

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  • ABB commissions Clarabelle mill upgrade for Vale in Canada CNW

    BADEN, Switzerland, Feb. 6, 2014 /CNW Telbec/ ABB, the leading power and automation technology group, has commissioned an upgrade to Vale's existing Clarabelle dual pinion semiautogenous (SAG) mill. The mill is used to reduce the size of the ore at the company's nickel and copper mines in the Sudbury area, 

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  • Mills CJT Surplus Equipment

    STOCK NUMBER: DS#06303. Ball Mill: Dominion Engineering 1used DominionEngineering Ball mill 12.5' dia. X 16' Long 1250 HP Synchronous Motor Fawick VC 1000 Clutch Rubber Liners (New) 24" wide Herringbone Gears Removed, cleaned and ready for shipment. Dominion Engineering Ball Mill 

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  • paper ABB Group

    synchronous or wound rotor motors with the power of about 2 MW. Around 10 years later, the mill sizes increased, but the necessary torque could not be transmitted by one pinion therefore dual pinion solutions were developed to power the mills. However, realization of the dual pinion solution was only possible when load 

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  • NFF: ClutchBrake units, Asynchronous induction AC motors

    NFF: ClutchBrake units. System advantage. NFF: ClutchBrake units, Asynchronous induction AC motors. The NFF series is compact and easy to install, these units are completely closed (IP54 protection) and do not need any maintenance or adjustment of magnetic gap thanks to the special system for taking up any 

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  • Synchronous Condensing Using the Generator of Peak Load Plant

    SSS Clutch Company, Inc. New Castle, Delaware. John C. McGough. B.C. Hydro. Vancouver, B.C., Canada. ABSTRACT. This paper will describe how a generator of a peak load turbine, when operated as a synchronous condenser, can help improve electrical system power factor and therefore help maintain reactive.

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  • Grinding in Ball Mills: Modeling and Process Control De Gruyter

    The mill is driven by a girth gear bolted to the shell of the vessel and a pinion shaft moved by a prime mover. The prime movers are usually synchronous motors equipped with an air clutch or gear transmission. After the mill is charged with the starting material (ore, rock, etc.) and the grinding media (balls),. Brought to you by 

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  • Adjustablespeed drive Wikipedia

    An adjustable speed drive might consist of an electric motor and controller that is used to adjust the motor's operating speed. The combination of a constantspeed motor and a continuously adjustable mechanical speedchanging device might also be called an adjustable speed drive. Power electronics based variable 

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  • Evaluation of Synchronous Motors on Grinding Mills IEEE Xplore

    frequency drives (VFDs) or used with direct start with a clutch system that would synchronize the motor first to overcome low starting torques. This paper reviews various Mill drive configurations and improved synchronous motor characteristics when used with more advanced Current Source Inverter (CSI) drives. It will also 

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  • paper ABB Group

    synchronous or wound rotor motors with the power of about 2 MW. Around 10 years later, the mill sizes increased, but the necessary torque could not be transmitted by one pinion therefore dual pinion solutions were developed to power the mills. However, realization of the dual pinion solution was only possible when load 

    Online
  • Autogenous mills, semiautogenous mills and ball mills for Polysius

    Lowspeed lowtorque motors use air clutches for a controlled mill start. Installation of a ring motor on a. SAG mill. Synchronous motor drive with air clutch. COMBIFLEX® drive (5,400 kW) with high speed synchronous motor and fluid coupling. Oil lubri ed standar dised pinion arrangement with induction motor.

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  • Milling Energy intensive and high maintenance

    A squirrelcage motor or a synchronous motor started direct on line without any help of a frequency converter normally cannot produce sufficient starting torque. Therefore it is required to accelerate the mill without load until the rated speed and then, by means of a clutch system, couple the motor to the mill. Another 

    Online
  • Allis Chalmers 13' x 21' ball mill, 2000 HP Machinery & Equipment

    Description: Ball Mill, 13' Diameter X 21' Long, Manufactured By Allis Chalmers (Svedala), RubberLined Mill, With SiemensAllis 2,000 Hp, 4000 Volt, 200 Rpm Synchronous Motor, Eaton Airflex Clutch. Includes Trommel Discharge, Ball Mill Rejects Conveyor, Lube System, Etc. Offered Complete With Controls. New In 

    Online
  • ball mill drive motor choices Artec Machine Systems

    Drive 1 A 5000 HP, 1200 rpm wound rotor motor with liquid rheostat and power factor correction capacitors to a dual pinion gear driven mill. . Drive 2 A 5000 HP, 514 rpm synchronous motor with an air clutch and gear box to a center drive mill a. Drive 3 A 5000 HP, 514 rpm synchronous motor with softstart and an air 

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  • Clutches for Grinding Mills Eaton

    mills with synchronous mo tors, or high speed motor and gearbox designs with the clutch mounted on the output shaft of the gearbox, to avoid the need for the additional costly invest ment required for high torque equipment. Where speeds permit, Airflex® clutches can also be used for inching or jogging the grinding mill 

    Online
  • Mill Throughput Capacity

    34, MOTOR DESCRIPTION : Speed, Motor Drive, Transmission, %Loss. 35, SAG Mill Motor Type, Fixed, Synchronous Motor, Clutch, 1.06, 1, 3, 1, 131. 36, Ball Mill Motor Type, Fixed, Synchronous Motor, Clutch, 1.06, 1, 3, 1, 131. 37. 38, OPERATING CONDITIONS : %Critical, Speed, %Total, %Steel, Allowance. 39, Speed 

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  • Interface for Drives in Cement Plants Semantic Scholar

    Since this drive depends on the clutch to accelerate the mill, it may not be acceptable for some of the pinion gear trains used for ball mills. Synchronous motors for dual pinion appliions have shown problems with torque oscillations. Therefore, special load sharing devices (Quadramatic) were developed. This functionality 

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  • GRINDING MILLSROD MILLSNew & Used Mining & Mineral

    Nelson Machinery supplies used and refurbished Rod Mills worldwide manufactured by Allis Chalmers, , and more. A rotating drum 1250 HP synchronous motor. New lubriion systems. 13' X 18Ǝ. L00096. (1) 13' X 18Ǝ" BALL/ROD MILL. 1500 HP synchronous motor. Eaton Fawick air clutch.

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  • Milling Energy intensive and high maintenance

    A squirrelcage motor or a synchronous motor started direct on line without any help of a frequency converter normally cannot produce sufficient starting torque. Therefore it is required to accelerate the mill without load until the rated speed and then, by means of a clutch system, couple the motor to the mill. Another 

    Online
  • Used Mining Equipment for sale, Mine Hoists, Grinding Ball Mills

    A full selection of the most reliable Mining Equipment including Mine Hoists, Ball Mills, Rod Mills, Crushers, Synchronous Motors & any Mining Equipment you require.

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  • Evolution of direct coupled pinion drive technology for grinding mills

    Introducing synchronous AC technology drastically increased the limits of power draw for milling. In a relatively short period of time, large airclutch start solutions, current source drive appliions and gearless mill drives were being installed. Figure 2: 3000hp, 150rpm, 6900V Synchronous Motor for Ball Mill designed in 

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  • 1 Page STEPPING FORWARD: USING 911 Metallurgist

    Current grinding technology based on tumbling mills is a mature and wellknown process which enjoys the confidence of most end users. An electric motor (asynchronous or synchronous machine, depending on the appliion) is the link between the electrical energy source and the mechanical load, the tumbling mill.

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  • Mills CJT Surplus Equipment

    STOCK NUMBER: DS#06303. Ball Mill: Dominion Engineering 1used DominionEngineering Ball mill 12.5' dia. X 16' Long 1250 HP Synchronous Motor Fawick VC 1000 Clutch Rubber Liners (New) 24" wide Herringbone Gears Removed, cleaned and ready for shipment. Dominion Engineering Ball Mill 

    Online
  • Sugar Cane Mill Plants Bonfiglioli

    Sugar cane is a raw material that can be transformed into many end products. Bonfiglioli has developed special, large size gearmotors specifically for these appliions.

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  • Mills and GMDs ABB

    Mills and GMDs. Maarten van de Vijfeijken* looks at large, larger and the largest units in grinding ore. The gearless motor (also called wrap around motor or ring motor) is a very large synchronous motor. The poles of the motor are directly gear, pinion, gearbox, coupling or air clutch, motor shaft and motor bearings.

    Online
  • News :Eaton Airflex new Inching drive and the biggest Airflex clutch

    Jun 10, 2015 Eaton's new Airflex 76VC2000 dual clutch system transmits rotary torque from highspeed electric motors that drive gearboxes or lowspeed synchronous motors to highperforming mills up to 14,750 horsepower per pinion. The clutch's 76inchdiameter friction drum enables it to transmit adequate torque 

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