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gearless mill drive system

Jun 30, 2014 ABBs delivery included one gearless mill drive system (GMD) for a 40-feet semi-autogenous mill and two low-speed dual pinion ring-geared mill drive

ABB gearless mill drive system to power SAG mill

ABB gearless mill drive system to power SAG mill

ABB has successfully commissioned three variable-speed mill drive systems at Thompson Creek Metals Mount Milligan copper/gold mine in Canada. ABBs delivery included one gearless mill drive system (GMD) for a 40-ft semi-autogenous (SAG) mill and two low-speed dual pinion ring-geared mill drive systems (RMDs) for two 26-ft ball mills making Mount Milligans grinding circuit one of the ... Gearless Drives from Siemens Helping Improve Efficiency and Reliability of Mine Conveyor System . The SAG mill was fitted with a gearless drive with a power rating of 24 MW and the ball mills were .The Gearless Mill Drive system consists of the ring motor with its

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SAG MILLING Gearless drive system from ABB Canadian

SAG MILLING Gearless drive system from ABB Canadian

2 GEARLESS MILL DES The gearless mill drive eliminates ring-gear, pinion, gearbox, coupling, motor shaft and motor bearings, used within a conventional mill drive system. By mounting the rotor poles directly onto the mill, the mill itself becomes the rotor of the gearless motor. Building a track record Oct 29, 2019 Two 28 MW gearless mill drive systems (GMDS) are operating in the mines 12-metre SAG mills and four 16.5 MW GMDS are employed in 26 ball mills along with associated control systems. Gearless mill drives are the workhorses for grinding operations which are at the heart of any mine.

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Gearless Mill Drive systems for copper mine in Zambia

Gearless Mill Drive systems for copper mine in Zambia

FQM has opted for Siemens Gearless Mill Drives to be used in the two SAG mills having a diameter of 40 feet and an output of 28 MW and the two ball mills with a diameter of 28 feet and an output of 22 MW. With these mill drive systems there is no wear in the drive train since all forces are transferred touch-free via a magnetic field. Jul 08, 2014 Gearless mill drive system in iron ore processing. ABB was recently contracted to supply gearless mill drive (GMD) systems for two 38 foot semiautogenous grinding (SAG) mills at the Serra Azul iron ore mine in Brazil. The Serra Azul mine unit, owned by MMX Minerao e Metlicos, an EBX Group company, is located in the iron quadrangle of ...

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gearless mill drive system

gearless mill drive system

The Gearless Mill Drive system consists of the ring motor with its feeding cyclconverter, pre-installed in an E-house. It also includes the excitation rectifier, the automation system (for mill and motor) including HMI, monitoring and diagnostic system, MCCs (for mill and drive auxiliaries), differential ABB commissions gearless mill drive system at Perus Jun 9, , ABB announced it has successfully completed commissioning of a 165 MW gearless mill drive (GMD) system for a SAG (semiautogenous) mill. Live Chat. The engineering and process effects of choosing a motor design

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Gearless mill drive system in iron ore processing

Gearless mill drive system in iron ore processing

Oct 29, 2019 In all, two 28-megawatt gearless mill drive systems (GMDs) are in use at the mines 40ft SAG mills, and four 16.5MW GMDs are employed in 26 football mills. Gearless mill drives are the workhorses for grinding operations, which are at the heart of any mine, ABBs Cobre Panama project manager Rene Chacon said. Feb 02, 2005 SAG MILLING Gearless drive system from ABB. WESTERN AUSTRALIA - Five years in storage have failed to affect the performance of the ABB gearless drive on a SAG mill at the St. Ives gold mine belonging to GOLD FIELDS of South Africa. The mill was originally ordered in May 1997, but shortly before the manufacturing was completed, the then ...

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Gearless Mill Drive System

Gearless Mill Drive System

Aug 28, 2010 38-foot SAG mill with gearless drive system from Siemens. Throughput can be almost doubled with a 42-foot mill. The 42-foot ring motor is the centerpiece of the gearless drive and wrapped around the tube mill. An increase in tube diameter means that the mass of the ore being ground rises dramatically, and hence also the strain on structural ... Sep 01, 2010 Newmont Mining Corporation selects ABB to design three gearless mill drive systems for their new high-altitude copper gold project in Peru. September 1, 2010 - ABB won an order from Newmont Mining Corporation to engineer three gearless mill drive (GMD) systems to be installed at the Yanacocha Minas Conga oxide copper gold project in Peru.

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Siemens Delivers First Gearless Mill Drive System to

Siemens Delivers First Gearless Mill Drive System to

Jul 08, 2014 GMD technology for Minera Escondida. ABB gearless mill drive, installed 2002 at the Minera Escondida in Chile. 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. Siemens, the company that introduced Gearless Mill Drives (GMD) to mining industry started up its first GMD on a ball mill in Norway in 1980. The mill and its drive system are still in service. Today, GMDs are mainly used for SAG mills between 36 and 40 feet (10.7 to

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Cobre Panama starts up gearless mill drive systems

Cobre Panama starts up gearless mill drive systems

next size Gearless Mill Drive, i.e. a 42ft mill. It is a dual design approach considering, on the one hand, the experi-ences Siemens made with Gearless Mill Drive (GMD) instal-lations over the past 40 years and, on the other hand, using computerized design tools calculating the system behavior where experience does not yet exist. Jun 30, 2014 ABBs delivery included one gearless mill drive system (GMD) for a 40-feet semi-autogenous mill and two low-speed dual pinion ring-geared mill drive

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ABB successfully commissions largest gearless mill drive

ABB successfully commissions largest gearless mill drive

Gearless mill drive order. ABB has received an order for the first gearless mill drive (GMD) system ever to be installed in an Indian manufacturing plant. The order was placed at the end of October 2009, by the Indian cement manufacturer Lalitha Cement Ltd. (LCL), located in Hyderabad, the capital of the Indian state of Andhra Pradesh. Gearless mill drive. The limitation of an RMD system was overcome by ABB when it introduced the first gearless mill drive (GMD) in 1969 for the cement industry. ABB introduced the first GMD into the minerals industry in 1985 and since then it has become the de facto standard equipment for mines with larger throughput requirements.

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GRINDING ABB commissions six gearless mill drives at

GRINDING ABB commissions six gearless mill drives at

Gearless mill drive order - Cement Lime Gypsum ABB has received an order for the first gearless mill drive (GMD) system ever to be installed in an Indian manufacturing plant. Feb 28, 2011 ABB gearless mill drive systems feature numerous benefits when compared with conventional geared drive systems superior reliability also with weak networks, increased process availability, extended life span and improved energy efficiency. Furthermore the system brings advantages such as optimal space conditions, a minimum number of spare ...

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ABB gearless mill drive digital services help increase

ABB gearless mill drive digital services help increase

The sealing system of the SIMINE Gearless Mill Drives is a proven design incorporating extremely low mainte-nance with ingress protection that is rated at IP 55, and complemented by a purpose-built rain shield. The outdoor version of the SIMINE Gearless Mill Drives allows omitting the concentrator building, a considerable saving of invest- Jan 09, 2019 The company selected ABBs 26 MW gearless mill drive system (GMD) for the mines 40 ft SAG mill, as well as other drives, electrical infrastructure equipment and a long-term service agreement (LTSA). This is expected to reduce operating costs, improve process throughput and reliability while saving energy and keep equipment in top form.

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Gearless mill drive order Cement Lime Gypsum

Gearless mill drive order Cement Lime Gypsum

1. GMD (Gearless Mill Drive) BBC Cycloconverter ABB, Operation and Maintenance of main system components (Converter Transformer, Ring Motor, Drive Control System control (PLC) and Auxiliaries), Spare part handling, Comunication options (overview), Fault Tracing and Troubleshooting. 2. Siemens Simatic PCS7 V6.1_CEMAT V6.1 3. Sep 13, 2006 Simine Mill GD provides a gearless drive with no mechanical parts between the motor and the mill. Stepless adjustment of the rotational speed aids optimum start-up and means that the system can be controlled in accordance with the varying demands of the material in the mill. This reduces wear, maintenance and energy consumption.

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Gearless Mill Drives Beneficiation Siemens Bulgaria

Gearless Mill Drives Beneficiation Siemens Bulgaria

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda) AbstractA cycloconverter-fed gearless mill drive is a drive system that has hardware and software protection functions to protect the equipment in case of abnormal operating conditions, malfunctions or failures. For demanding applications in the mining industry, protections systems need to be reviewed considering ... The Truck Trolley System helps deliver copper ore in the form of rock particles in the open pit to the crushing/conveyor system. The gearless mill drives for...

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gearless mill drives

gearless mill drives

The $1.2 billion expansion, which saw throughput rise from 60,000 t/d to 120,000 t/d, involved the addition of two new thyssenkrupp-made ball mills, with ABB providing the gearless mill drives (GMD) technology. This came on top of the 33 mills the miner already had up and running as part of the existing 60,000 t/d plant at the operation. GEs LV7000 Low Voltage drives cover the needs from 0.75kW up to 3.6MW and can substantially improve the quality and efficiency of our customers process or production. All GEs AC drive ranges (low and medium voltage) can be either stand-alone or connectable to a common DC bus system. GEs DC bus system concept reduces the overall AC power ...

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Concepts of Gearless BallMill Drives IEEE Journals

Concepts of Gearless BallMill Drives IEEE Journals

Oct 08, 2021 The SIMINE Gearless mill drives pump system significantly enhances concentrator productivity by eliminating the reducer gear between motor and pump and all corresponding maintenance. In addition, the cyclone pumps with variable speed can adjust their energy consumption to the optimized flow of pulp, resulting in energy savings of up to 30%. In the past the conventional method of driving large ball mills included some form of speed reducing gear between the higher speed driving motor and the lower speed ball mill. Process developments in the mining and cement industries have increasingly tended toward the use of ever larger ball mills for grinding their products. As the horsepower drive ratings required have increased to several ...

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