application of the hyper ser drive to sag mills

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A structured approach to modelling SAG mill liner wear - monitoring wear ... The voltage output from the la ser is directly proportional to the . ... (SAG) mills-such as rapid failure, mill shell ...

hyper synchro drive sag mills - terapie-plzen.cz

Semi-Autogenous Grinding (SAG) and ball mills - Installed some of the biggest mills seen in the mining industry: 20 MW mill at Cadia was a first for the industry; 13 MW twin pinion Wound Round Induction Motor (WRIM) Slip Energy Recovery (SER) SAG mill for …

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An EPM starter equipped with a heat exchanger is suitable for applications requiring: - high starting cadenza - speed variation or permanent sliding of the engine An exchanging system can be mounted on any EPM started, with the addition of a regulation servo-motor and a heat exchanger. Heat dissipation and capacity are increased significantly.

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COPPER MOUNTAIN: OVERVIEW ON THE GRINDING MILLS AND THEIR DUAL PINION MILL DRIVES ABSTRACT This paper will first give a short overview of the Copper Mountain project in British Columbia, which just has started commercial operation earlier this year. The grinding process with one 34' x 20' SAG

SER DRIVE

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Oct 27, 2004· Hi, I´m trying to find some theory information about S.E.R. (slip energy recovery) drives, basically how this kind of drive can drive a motor above of the synchronous speed, if somebody can tell me where I can get this information or know well this kind of drive I will be grateful

AN OVERVIEW OF THE DESIGN, CONSTRUCTION, …

With successful operation of 2 x 6.5MW (Phu Kham, Laos) and three 2 x 7MW units under manufacture (Pascu Lama) and a further 40 projects worldwide, energy efficient Hyper Synchronous SER drives are now mature and ready for use on 2 X 10MW dual drive mills. Speed variation required is in the range of +/- 15% of synchronous motor speeds.

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The Slip Energy Recovery Drive (S.E.R. Drive) is a technology well proven in the industry for large power motoring systems that allows precise motor speed control at the same time that recover the slip energy in the wound rotor induction motors (WRIM). The typical applications include SAG …

Electrodrives- ElectroDrives SL Ser. Drive Specialist

Variable speed was required for the SAG mill. Various options were considered to meet the specified speed range of 65 to 85% of mill critical speed, and the final selection was the IES Hyper-Synchronous drive Slip Energy Recovery (SER), in conjunction with Wound Rotor Induction motors (WRIM).

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Paper # 25 - Copper Mountain Overview on the Grinding ...

Dec 19, 2014· Advantages of SER drives for SAG mills. Friday, December 19, 2014. ... At a hyper-synchronous speed, the SER drive feeds power into the motor rotor allowing it to run faster than synchronous speed. So for a fixed torque and higher speed, the power obtained from the motor is higher than the motor nameplate rating. ...

OIL & GAS DEFENDING ELECTRIC DRIVES

We are experts in Slip Energy Recovery Drives (SER Drives), Liquid Resistor Starters (LRS), Static Excitation Systems and Harmonics filters. Find out the solutions we provide our customers for their SAG mills, AG mills and ball mills commonly used in the mining sector.

Updates on geared vs gearless drive solutions for grinding ...

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Variable frequency drive Vector control VS V/F control

The CSE Uniserve Rotor Drive Slip Energy Recovery System (SER) is designed for reliable and repeatable mill starting and speed control and to return all unused energy into circuit below when operating speed. It exclusively offers operators full torque at hyper synchronous speeds. Typical applications include mills, crushers, fans and pumps.

Advantages of SER drives for SAG mills | GoHz.com

ABB to supply drive systems for molybdenum development project in the USA Mount Hopes new molybdenum mine in central Nevada will be equipped with most energy efficient gearless mill drive and dual pinion ball mill drive systems the SAG mill as well as the ball mill will be powered by gearless drive systems which allow that the . Get Price

STEPPING FORWARD: USING VARIABLE SPEED DRIVES FOR ...

Sep 17, 2013· Starter of SAG Mills with rotor resistance Hi everybody, For now I am working on a mining project which involves starting two SAG mills, the method of starting these mills is by rotor resistance and likewise we are using an energy recovery system (SER), could someone tell me how this system works SER?

siemens.com/mining Flexible Slip Energy Recovery Drive

Flexible Slip Energy Recovery Drive (SER) for variable-speed applications Fig. 1 – Visualization at the operator panel Fig. 2 – SER with SINAMICS S120 converter. 4 Applications • SAG mills and ball mills in the mining industry, where an increase of efficiency and productivity is desired

S.E.R. Drives - Electric motors & generators engineering ...

SINGLE STAGE SAG/AG MILLING DESIGN ABSTRACT Single stage semi-autogenous / autogenous (S/AG) milling has become a common design for a variety of ore ... number of the largest SAG mills designed are installed in single stage configuration. This paper discusses the ... This puts the application in the realm of a single mill, single pinion operation.

(PDF) A structured approach to modelling SAG mill liner ...

STEPPING FORWARD: USING VARIABLE SPEED DRIVES FOR OPTIMIZING THE GRINDING PROCESS IN SAG AND BALL MILLS *I. Atutxa and I. Legarra . Ingeteam Power Technology . Parque Tecnológico de Bizkaia, Edificio 110 . ... (grinding mills are applications of …

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SAG Mill Grinding Circuit Design. SAG mill make use of steel balls included with some large and hard rocks for grinding. These mills utilize the balls in making the large fragments of materials broken into pieces. The ball charge of a SAG mill is about 9% to 20%.This process takes place inside the large rotating drum of SAG mill which is ...

Slip Energy Recovery System Rotor Drive (SER) | CSE Uniserve

operating speed range, so voltage sag is almost never a problem. An electric drive and motor can be applied to any defined load on a compres-sor application. Electric drives have been applied to loads with high overload requirements, such as metal rolling mills, for many years. With a defined torque-versus-speed envelope for the compres-

inching control in ball mill - populareducation.co.za

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zenith''s latest innovation, the zenith QdX4(TM) Mill Drive System ... Nov 2, 2015 ... Until now, the gear-driven solution for large SAG and ball mills was limited to 18 MW. ... inching and creep capabilities, and standard cooling, the zenith ... the mining and aggregates industries and in the flow control business.

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Improved characterisation of ball milling energy requirements for HPGR products. ... (and SAG mills) ... (SER) drive is used to control the mill speed by running at slower than synchronous speeds, therefore rotor current and shaft power are not directly proportional. The site have also identified differences in ball size, trajectory and liners ...

super energy saving ball mill with abb motor

Oct 10, 2008· The simple, modular design of the Frontier Hyper SER-Drive also allows fast change-out of most components by HV technicians. In 2008, Outotec subsequently supplied an additional 9.75m (32’) diameter, 12MW SAG mill with Hyper-SER Drive and 5.8MW Ball Mill at the Kansanshi site, again with common, interchangeable drive train components.

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Starter of SAG Mills with rotor resistance - Gozuk

Oct 27, 2004· Thanks Skogsgurra, I was talking with the people of IES that supply this kind of drives, this drive works as you said, while you can drive the motor up to the synchronous speed you always going to have a constant torque, this is the main condition to the system while the torque depends of the relation between power and speed, and when the ...

Improved characterisation of ball milling energy ...

Variable frequency drive Vector control VS V/F control. ... For now I am working on a mining project which involves starting two SAG mills, the method of starting these mills is by rotor resistance and likewise we are using an energy recovery system (SER), could ...

sag mill advantages - polisol.be

Advantages of SER drives for SAG mills GoHz. Dec 19, 2014 Advantages of SER drives for SAG mills. Friday, December 19, 2014. At a hyper-synchronous speed, the SER drive feeds power into the motor rotor allowing it to run faster than synchronous speed.

SINGLE STAGE SAG/AG MILLING DESIGN - Metallurgy

Advantages Of Ser Drives For Sag Mills | Gohz.Com. Advantages of ser drives for sag mills. friday, december 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 ...

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