gearless mill drive comparison echtscheidingen . GD gearless drive system with a power rating of 20.1 MW was used for the SAG mill, and an 11.2 MW system was chosen for the ball mill. x Siemens is supplying three gearless Simine Mill GD mill drives together with the electrical equipment to Minera Lumina Copper Chile S.A.

gearless mill drive optical systems mgcricket.co.za. Geared vs gearless drive solutions for grinding mills gearless ball mill images grinding mill china preprint 13050 ceecthefuture gearless mill drives grinding abb abbs gearless mill drive system is the most powerful mill drive system in the market to power semiautogenous sag ball and ...

The belt system had three individual segments equipped with a total of 5 integrated drive systems. The largest belt used two direct drives at 6,000 kilowatts (kW) each. The two smaller feeder and takeoff belts were run by two low-voltage motors at 500 kW and one medium-voltage motor at 1,200 kW.

Periodic Maintenance Reports for Gearless Mill Drives DriveMonitor (DM) ABB DriveMonitor is a diagnostic intelligent system: Industrial PC with H/W firewall and optical link Framework for data acquisition and processing Features: Data acquisition from different signal sources Data storage and consolidation in dedicated database

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 Mineração e ­Metálicos, an EBX Group company, is located in the iron quadrangle of Minas Gerais, next to Belo Horizonte – the heart of ...

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%.

The first Gearless Mill Drive (GMD) with a power of 6.5 MW was installed 1969 in a cement milling process in the cement plant Le ... When a drive system is selected for grinding applications, a large number of items need to be checked and many questions must be answered. Depending on the mill size and type, the mill can be driven

Gearless mill drive systemluigispizzapastashawano. gearless mill drive optical systems. abb commissions the most powerful gearless mill drives ever built sep 22 2010 two gearless mill drives (gmd) power two new 38-foot (116 meter) autogenous grinding mills included is the first high speed dual-pinion drive system in this

Gearless mill drive optical systems - cgm grinding plant gearless mill drive protection improvements and its behaviour at abstracta cycloconverter-fed gearless mill drive is a drive system that has hardware and software thyristor supervision card... Details. Intranetdgipusmcl. behaviour of anaerobic digestion at different ph and so42 ...

a given issue for a gearless drive system. A harmonic study determines on a case-by-case basis whether the plant configuration and network in question need harmonic filtering. As the drive concept is a 12-pulse system, only the 11th and the 12th harmonics and their related sidebands have to be looked at. Harmonics with higher harmonic

Drive systems for crushers Increasing efficiency and extending the crusher life cycle. ... How digitalized gearless drive technology results in energy savings and improved performance. Downloads. Extracting Potential with Gearless Mill Drives and Gearless Conveyor Drives - Global Mining Review - May/June 2020 (English - pdf - Article) ...

Our GMD eliminates all mechanical components of a conventional mill drive system, such as ring-gear, pinion, gearbox, coupling, motor shaft and motor bearings: By mounting the rotor poles directly onto the mill, the mill itself becomes the rotor of the gearless motor.

Gearless mill drives go gearless - bsmr-doesburgnl.Gearless drive mills and crushers insurability of large gearless mill drives - gearless drive mills and crushers geared vs gearless drive solutions for grinding mills crusher, this investment is a large copper production line, and finally.Gearless mill drive optical systems - lovingbirthnl.

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.

cement mill drive system - mill for sale. ... mill inching drives in south ... gearless mill drive Optical Systems - CGM Grinding Plant. ABB's gearless mill drive systems are designed ... cement mill mv drive ... Read more. Raw Mill In Cement Plant - How Much Crusher

Presently the gearless drive is more costly than the complete mechanical portion (mill rotating element and accessories supplied by the mill manufacturers) and hence the customer/consultant needs to have two parties to deal with from the start of any project. There is an interface between the mill vendor and the gearless motor supplier.

Furthermore, ABB gearless mill drive systems feature several benefits compared to conventional geared drive systems: superior reliability, availability, extended life span and efficiency, frozen charge protection, positioning in creeping and inching mode without additional motor and controlled roll-back.

An induction motor fed by GE's MV7000 Medium Voltage drive is one of the latest solutions designed and offered by GE for all rolling mill applications. As the induction motor provides more availability, reliability, lower maintenance and reduced electrical distribution equipment, this solution can contribute to significant savings for our ...

Gearless mill drive (GMD) technology has further expanded the use of large SAG milling allowing to produce the world's largest SAG mill of 42' in diameter drawing power at 28 MW. Today, is the world leading supplier of gearless SAG mills operating globally.

Gearless mill drives (GMDs) have been installed on platinum-miner Anglo Platinum's Potgietersrust Platinum (PPRust) 600 000 t/m concentrator.

Jan 19, 2016· The mills at Sentinel in Zambia are amongst the world's biggest, with 2 off 40 ft SAG mills complete with 28 MW drives, and 2 off 28 foot-ball mills with 22 ...

ABB's 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 systems (RMDs) for two 26-feet ball mills; making Mount Milligan's grinding circuit one of the most advanced and powerful in North America. The full scope of supply for the GMD system consisted ...

Aug 23, 2011· Baden, Switzerland, August 18, 2011 — ABB, the leading power and automation technology group, has won an order from Newmont Mining Corporation to deliver three gearless mill drive (GMD) systems ...

of large gearless cycloconverter drive sys-tems for SAG-Mills has become more and more common in the recent years. Very high power ratings with excellent dynamic performance and high efficiency over a wide speed range allow advanced optimi-zation of the process. The design of such large mill drive systems requires modern

Gearless Mill Drive System,Apr 24, 2008· Baden, Switzerland Gearless mill drive systems will maximize productivity and energy efficiency at a new copper mine in northern Brazil. ABB says it recently won an order from Vale (formerly CVRD) to deliver such a system to the Salobo mine, located at the Tapirape-Aquiri National Forest, in the state ...

This gearless drive pro-vides an astonishing 20,400 kW of power. In 1998, Siemens supplied the first gearless drive for a 40-foot SAG mill at the Cadia Hill Mine in Australia. While the details vary, there is a theme that links these projects – careful development and analysis, timely results and ultimately the delivery of reliable, efficient ...

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

Gearless Mill Drive (GMD) systems are characterized by having the motor wrapped around the mill like a ring. For this reason they are often referred to as ring motors. The rotor poles are attached directly to the mill (head) flange, and hence the rotor becomes an integral part of the mill, as shown in Fig.

ABB Motor Gearless Mill Drive GMD System

Commissioning and start-up of Canada's first gearless mill drive (GMD) system has been completed at Osisko Mining Corp's Malarctic project and will increase production capacity at the mine. The system was commissioned by ABB, a leading power and automation technology group. The GMD powers a 38′ (SAG) mill at the Canadian Malartic gold mine.

In all, two 28-megawatt gearless mill drive systems (GMDs) are in use at the mine's 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," …