منزل •gearless mill drive system

gearless mill drive system

  • Gearless mill drives - ABB

    The ABB gearless mill drive (GMD) is the most powerful mill drive system available, combining the highest levels of efficiency, reliability, flexibility and availability. 3 Competence in grinding For many decades, ABB's optimized mill drive solutions have consistently set new productivity

  • 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, MCC's (for mill and drive auxiliaries), differential

  • to Build Largest SAG Mill for Newmont's Minas Conga ...

    E&MJ reported in October 2010 (See "SAG Mill Gearless Drives Go to South American Projects,"p. 102) ABB Group's Minerals Division had won an order from Newmont Mining Corp. to engineer three gearless mill drive (GMD) systems to be installed at its Yanacocha Minas …

  • Literature Review: Gearless Motor Failures – A Mill ...

    1 – Ring Motor and Mill Complexities. We have been fortunate to undertake detailed mechanical and structural design reviews and audits of all mill types from the five major mill vendors and of ring motors from both the gearless drive vendors. We have also been hired by mine owners to determine the causes of most of the major modern mill and ...

  • When it Comes to Mining, Bigger is Best | PTE

    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.

  • GRINDING: ABB commissions six gearless mill drives at ...

    Two 28 MW gearless mill drive systems (GMDS) are operating in the mine's 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.

  • (PDF) Operation of High-Power Cycloconverter-Fed Gearless ...

    814 IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, VOL. 43, NO. 3, MAY/JUNE 2007 Operation of High-Power Cycloconverter-Fed Gearless Drives Under Abnormal Conditions Jorge O. Pontt, Senior Member, IEEE, José P. Rodríguez, Senior Member, IEEE, Jaime C. Rebolledo, Student Member, IEEE, Kurt Tischler, and Norbert Becker Abstract—This paper presents the behavior of large …

  • gearless mill drives

    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. …

  • Go gearless with ABB's mill and conveyor drives for more ...

    A gearless mill drive is a major investment for a plant and as the beating heart of the production process is essential. Thus, having knowledge of how to make most of your GMD is crucial. The following advanced digital service can enable …

  • ABB to supply gearless mill drive to mine in Chile

    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 ...

  • gearless mill drive system

    Insurability of large gearless MILL drives698 Кб Figure 1 – The gearless mill drive With this innovative concept the gearless mill drive GMD eliminates all critical mechanical components inherent within a conventional mill drive system such as ring gear pinion gearbox coupling or air …

  • Michael Salinas – Gearless Mill Drives electrical project ...

    Electrical engineering for mill auxiliary system and ringmotor instrumentation. Interface and design review meetings held together to… Project engineering, service and commissioning for Drive Sytems focused on Gearless Mill Drives (Non-geared mill motors for mining industry, grinding applications).

  • Mining industry | Market-specific Solutions | Siemens Global

    The gearless drive system includes four low-speed synchronous motors (4.4 MW, 66 rpm) and the associated SINAMICS SL150 converters. The operators profit from high availability and less downtimes as well as from reduced operational and maintenance costs.

  • Gearless mill drive order - Cement Lime Gypsum

    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.

  • TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL …

    Gearless mill drives are a well established solution for grinding applications in the minerals and mining industries. The paper describes the functionality and technical features of such drive systems as well as their advantages compared to other drive solutions.

  • Commissioning Variable Speed SAG Mill Gearless Drive

    Commissioning Variable Speed SAG Mill Gearless Drive. The electric operation and design features of the 11,000 H.P. variable speed SAG mill gearless drive is presented. The function of the frequency-converter, control system drive and lubrication systems are described. An analysis of the harmonic characteristic in the Supply System and Motor is ...

  • ABB gearless mill drive & digital services help increase ...

    The company selected ABB's 26 MW gearless mill drive system (GMD) for the mine's 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.

  • Gearless Ball Mill Operation - 911metallurgist.com

    The reliability of large diameter, high horsepower ball mill is paramount when large production and minimum downtime is required. The 17 ft. x 56 ft. double compartment ball mill at St. Lawrence Cement Company has the first gearless drive …

  • Drive Systems | Metal Solutions | GE Power Conversion

    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 ...

  • Alzhan Kh - Field Service Engineer - ABB inc | LinkedIn

    GEARLESS MILL DRIVE (GMD) SYSTEM, ELECTRICAL AREA ABB SWITZERLAND Issued Sep 2017. Credential ID n/a RM3 Project Risk Management ABB Project Risk Management Steering Comittee Issued Feb 2012. Credential ID n/a AC800 PEC Control Builder ...

  • Gearless Mill Drives | Beneficiation | Siemens Bulgaria

    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%.

  • GMD technology for Minera Escondida - Mineral Processing

    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.

  • Gearless mill drive system in iron ore ­processing ...

    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 Mineração e ­Metálicos, an EBX Group company, is located in the iron quadrangle of ...

  • Cesar Bardales Torres - Senior Service Engineer - ABB ...

    Acerca de. Master's student of control and automation engineering. Electronics engineer. CIP 246576. Trainee at ABB Switzerland. Gearless Mill Drive - Electrical. System 800xA. Experience in commissioning and start-up of polymetallic plants, GMDs, process control, electrical systems, LV drives, instrumentation and third party integration.

  • mauritania abb mill

    Gearless mill drives • 28 MW GMD for 42 SAG mill Whether it is size or an installation at the highest altitude 4600 masl ABB's GMDs are well positioned to contribute to the building of larger and ever more powerful mills Leading the gearless mill drive evolution The ABB gearless mill drive GMD is the most powerful mill drive system available

  • Gearless mill drives - Grinding | ABB

    Gearless mill drive system (GMD) Go gearless to meet your business objetives by exceeding standard availability targets in your grinding operations. ABB's GMD is the most powerful mill drive system in the market to power semiautogenous (SAG), ball …

  • SAG MILLING - Gearless drive system from ABB - Canadian ...

    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 ...

  • The Siemens 42ft gearless mill drive, still an ...

    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.