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Ring

Mill application features. Frozen charge protection – Detects frozen charge in the mill, minimizing equipment wear and liner replacements.; Coupling supervision – Detects if a failure or slippage occurs in the couplings and stops the system in case, preventing major damages.; Stand-still detection – Prevents the motors from re-starting if the mill is still rocking or moving after a stop Get price

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Low

2021-2-12ABB has successfully commissioned four low-speed dual pinion drive systems at the Detour Lake gold mine in Ontario, Canada.. These systems include the largest low-speed dual pinion mill drives in the world. The low-speed concept operates without a gearbox, with motors driving the pinions directly, thus increasing overall system efficiency.Get price

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Horizontal Mill Pinion Drives

Our high-speed drive solutions provide operational flexibility and full modularity. The power ranges from 100 kW to 24 MW. Our low-speed drives reduce wear and help cut energy costs by up to 5%. Offered up to 24 MW, the variable speed of low-speed drives provides optimized start, stop, inching, and creeping procedures to reduce downtime for Get price

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ABB wins contract for worlds largest low speed dual

ABB's scope of supply includes four sophisticated dual pinion low speed mill drive systems for two semiautogenous (SAG) and two ball mills, each consisting of synchronous motors, a converter transformer and a frequency converter ACS6000 including active rectifier units who will allow the mill drives to achieve a power factor of 0.90 leading.Get price

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Paper # 25

2016-11-14Finally 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 speedGet price

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Ring

Mill application features. Frozen charge protection – Detects frozen charge in the mill, minimizing equipment wear and liner replacements.; Coupling supervision – Detects if a failure or slippage occurs in the couplings and stops the system in case, preventing major damages.; Stand-still detection – Prevents the motors from re-starting if the mill Get price

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Drive Solutions for the Global Mining Industry

2017-4-9mills, fans, and pumps use VFDs to provide high power and speed control, as well as generate signifi cant associated energy and maintenance savings. • The TMdrive-10/30/50/70 family of drives and TMEIC motors are also well-suited for mine hoist applications. • Drives are useful in soft starting large mill motors. MotorGet price

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Sugar Mill Drives

A very compact drive system compared to old method of power transmission from turbine to mill through High and low speed gearboxes followed by Pinion and Gear arrangement driving the sugar mills. Figure IV. Helical Planetary Gearbox for Mills. These gearboxes give a high flexibility of ratios with a helical stage at the input.Get price

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SIMINE Gearless mill drives

2021-2-19Gearless mill drives. Longer service intervals thanks to low-wear drive processes SIMINE Gearless mill drives' rpms can be tailored to your operations at any time, and are infinitely variable and uncomplicated. Whether manually or fully automatic – rpms can be adjusted to account for the proper-ties of the ore, resulting in significantly lessGet price

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Kumera Steel Mill Drives

Kumera Steel Mill Drives Kumera Drives is a prominent designer, manufacturer and service provider of mechanical power transmissions. The experience gathered over decades guarantees high expertise and innovative quality products and services for today's Steel Mills.Get price

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A state observer for speed regulation in rolling mill

A regulator aimed at damping the torsional vibrations of the rolling mill drive-train and thus reducing the electric motor speed fluctuations is presented in this paper. The proposed regulator relies on a reduced order state observer able to estimate the shaft torque amplifications due to the working process.Get price

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for horizontal mill drives

2019-12-3Auxiliary or maintenance drives are available in accordance with your re-quirements. The auxiliary drive is fit-ted behind the electric motor or on the opposite side of the gear unit. The auxiliary drive is a cost effective drive used during build-up welding on the mill or for convenient positio-ning of the mill during maintenance.Get price

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LOW SPEED ASYNCHRONOUS MOTORS FOR MILL

2018-2-20Case Study- Application of Asynchronous Low Speed Motors for Mining Ball Mill Application . Mills are often the bottleneck in the beneficiation process rendering their continuous operation critical to a mine. In June 2014, four low speed asynchronous motors were commissioned for two28' ball mills at a copper mine in the United States.Get price

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Mill Drives

Mill motor gear drives can be offered for AGSAG grinding mill as dual pinion drives with power deliver of up to 20 MW (2 x 10, 000 kW), and this can be accomplished on mill sizes up to 36 ft in diameter. Gearless mill drive (GMD) technology has further expanded the use of large A moreGet price

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OUTOTEC GRINDING TECHNOLOGIES

2019-11-29Mill drives We offer both high-speed induction and low-speed synchronous motors. High-speed motors require an intermediate gearbox. Although large mills exceeding 18,000 kW normally use gearless drives, Outotec can offer geared drives in excess of 24 MW. Smaller mills up to 450 kW are also available in a direct-driven arrangement.Get price

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SIMINE Gearless mill drives

2021-2-19Gearless mill drives. Longer service intervals thanks to low-wear drive processes SIMINE Gearless mill drives' rpms can be tailored to your operations at any time, and are infinitely variable and uncomplicated. Whether manually or fully automatic – rpms can be adjusted to account for the proper-ties of the ore, resulting in significantly lessGet price

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Tech

Rolling mill DC motors are best at low speed, high torque applications, while AC motors typically need to run above 800rpm to be cost effective. Also the case for higher efficiency of AC motors is many times negated by the wasteful braking methods of some AC drive systems. Low voltage AC drives consist of a rectifier (AC to DC) section Get price

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Medium Voltage Drives

Mainly used in large high-power and high-speed applications such as pumps, fans, compressors, main marine drives, extruders and rolling mills, shaft generators, boiler feed pumps, wire rod mills, starting generators, pump storage and starting applications (e.g., blast furnaces).Get price

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ABB Ring

2014-7-17speed solution—i.e., a combination of frequency converter and squirrel-cage induction motor. Or, the ABB low-speed solution— including a frequency converter and brushless synchronous motor—elimi-nates the costly gearboxes of the high-speed solution. Both solutions start with the motor directly coupled to the mill—thus elim-Get price

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Tech

Rolling mill DC motors are best at low speed, high torque applications, while AC motors typically need to run above 800rpm to be cost effective. Also the case for higher efficiency of AC motors is many times negated by the wasteful braking methods of some AC drive systems. Low voltage AC drives consist of a rectifier (AC to DC) section Get price

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Ball Mill Drives

2021-2-20Several types of ball mill drives can be furnished, made up of various combinations of gearing, motors and transmission equipment. The correct combination to be selected takes into consideration power requirements, gear ratings, floor space, interference from other plant equipment and motor characteristics. The main types are described and illustrated on these Get price

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SOPHISTICATED RING GEARED MILL DRIVES: FEATURES

2018-5-10Dual pinion high-speed mill drive (with gearbox) and dual-pinion low-speed mill drive (without gearbox). By using the latest generation medium voltage frequency converter drives of ABB as shown in figure 2, with exclusive DTC (direct torque control) technology, these demands can not only be reached, but even exceeded.Get price

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ABB Commissions Dual

2020-4-8ABB'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 to achieve a power factor of 0.90 leading.Get price

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OUTOTEC GRINDING TECHNOLOGIES

2019-11-29Mill drives We offer both high-speed induction and low-speed synchronous motors. High-speed motors require an intermediate gearbox. Although large mills exceeding 18,000 kW normally use gearless drives, Outotec can offer geared drives in excess of 24 MW. Smaller mills up to 450 kW are also available in a direct-driven arrangement.Get price

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Low Speed Gearboxes Provided by Philadelphia Gear

2021-1-20Low Speed Gearboxes There is not a low speed industrial gearbox application for which Philadelphia Gear has not designed and manufactured a solution. Throughout its storied history the company has made some of the highest torque gear drives ever conceived.Get price

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Drives Motors

2021-2-13These drives offer a motor current up to 720 A, for synchronous or induction motors. Our PowerFlex 6000 drives meet applications that require variable speed motor control from 2.211 kV, with motor current up to 680 A. These easy-to-use drives are well-suited for variable torque applications like simple, standalone centrifugal fans and pumps.Get price

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ABB Commissions Dual

2020-4-8ABB'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 to achieve a power factor of 0.90 leading.Get price

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Low Speed Gearboxes Provided by Philadelphia Gear

2021-1-20Low Speed Gearboxes There is not a low speed industrial gearbox application for which Philadelphia Gear has not designed and manufactured a solution. Throughout its storied history the company has made some of the highest torque gear drives ever conceived.Get price

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SOPHISTICATED RING GEARED MILL DRIVES: FEATURES

2018-5-10Figure 2: simplified overview of dual pinion high-speed mill drive (with gearbox) and dual-pinion low-speed mill drive (without gearbox) By using the latest generation medium voltage frequency converter drives of ABB as shown in figure 2, with exclusive DTC (direct torque control) technology, these demands can not only beGet price

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mill drives

mill drives Articles About mill drives. Articles are sorted by RELEVANCE. Sort by Date.. 1 How to Spec a Mill Gear (February 2014). This paper outlines the design considerations that go into construction of a drive system in order to explain the importance of specific data, why it is required, and where design freedom is necessary.Get price

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