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abb ball mill motor construction paper - ABB Group synchronous or wound rotor motors with the power of about 2 MW. Around 10...
M. Ahrens, ABB, Switzerland J. Gonser, ABB, Switzerland ... simple using the mill body as motor rotor and mounting the poles there. As a result the motor does not have a separate (motor) rotor and thus ... The question what drive system is optimal for SAG and ball mills is project specific and depends on the plant layout and the design of
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ABB's AXR 5000 and 5800 motors offer more HP (horse power) per pound than conventional TEFC (totally enclosed fan cooled) motors but with a smaller frame size in some power ratings. This helps save space, up to 8 inches in overall length in some cases, which enables more compact installations on oil platforms and in refineries.
ABB's scope of supply consists of three complete GMD systems including transformers, ring motors and E-house. One 26 MW GMD system will be installed for a 40′ diameter SAG mill, while two 20.5 MW GMD systems will be installed to drive two 27′ diameter ball mills. In addition, Kinross ordered the new ABB GAP-Watch TM for each system. GAP ...
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In 1969, ABB commissioned the first GMD for a ball mill at Ciments Lambert-Lafarge, France. The 6.4 MW gearless motor is still operating today and is proving to perform cost-efficiently and with long-term reliability. Significantly, it met the challenge of heat related .
Dec 01, 2010· GMD technology for Minera Escondida ABB announced that it will supply a new 15.7 MW gearless mill drive (GMD) system for a 26 ft ball mill, including transformers, ring motor and a complete electrical room entirely equipped, to Minera Escondida/Chile. The contract was awarded in June 2010 and equipment deliveries are scheduled for May 2011.
Jun 05, 2013· Our variable-speed mill drives offer optimized solutions for grinding applications such as AG, SAG and ball mills. These drive systems are based on ABB.
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.
Abb Ball Mill Motor ConstructionRistorante Il Bettolino. Gearless mill drives Grinding ABB. ABB s GMD is the most powerful mill drive system in the market to power semiautogenous (SAG) ball and autogenous (AG) mills This workhorse for grinding operations combines a robust service-friendly and fit for purpose design to provide highest throughput ...
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 ...
Combine ABB's variable-speed drive system with advanced process control - ABB Ability™ Expert Optimizer for grinding - to provide maximum mill control. It can be applied to new or existing AG, SAG and ball mills, powered by either ring-geared mill drives (RMD) or gearless mill drives (GMD).
Whether you're talking about SAG or ball mill, space is a sensitive subject, especially in the concentrator. That's why we always design our SIMINE MILL Gearless Drives to combine maximum performance with limited space requirements. Suitable foundation and adequate ground conditions Since our solutions have a low motor weight, this notice-
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Abb 8 5 E 10 Coal Mill Power Plant. Abb 8 5 e 10 coal mill power plant catherineclaryssebe technosparkcoin 8 5 e coal mill gear box of david brown hydraulic system davidbrown gearbox 96540 rpm and drive motor 228 kw 984 rpm 6 gearbox of 8 5e coal mill e mill gear box for coal grinding in in ball mill function of. Get Details
As a result, ABB developed three of the largest diameter and most powerful drive systems for a SAG and two ball mills installed at the highest altitude to date. The fully integrated and optimized solution for the grinding circuit consists of: 1 x 28 MW GMD to power the 40 ft SAG mill; 2 x 22 MW GMDs to power two 28 ft ball mills
The coal is feed into the coal mill via a inlet pipe so that the roller coal mill such as ball mill or vertical mill can pulverize the coal into particles. Technical data. Coal Mill Model specification (m) Capacity (t/h) Rotating speed (r/min) Transmission type Motor Reducer Weight(t) Remark Model: Power (kw) Model: Reduction ratio: Ø2.2×3: 5 ...
Inventory ID: 6C-HM01. 3 Units - UNUSED 26' x 43' Dual Pinion Ball Mill with 2 ABB 9,000 kW (12,069 HP) Motors w/ ABB VFD for Total Power of 18,000 kW (24,138 HP)
ABB's GMD is the most powerful mill drive system in the market to power semiautogenous (SAG), ball and autogenous (AG) mills, This 'workhorse' for grinding operations combines a robust, service-friendly and fit for purpose design to provide highest throughput, reliability .
Jan 19, 2018· The full scope of supply for the GMD system consisted of a 23.5-MW ring motor, cycloconverter transformers, excitation transformer, cycloconverter, and ABB control system for the mill and its ...
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 services which will increase productivity, reduce downtime and boost energy efficiency.
ball charge., but not less than 18% of the total volume." This states that AG mills are designed at 18% ball safety, mills operating at maximum 12% balls get 6% ball safety, while operations at maximum 18% get 3% ball safety. The original statement was that all mills should be designed at 3% ball safety over their maximum operating load.
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