- Mon - Sat 8:00 - 18:00
- [email protected]
- 0086-21-58386256
A drive roller has a brushless D.C. motor with a stator or armature mounted on a fixed shaft and directly driving a 16 pole permanent magnet rotor mounted inside a roller tube. A motor controller drive supplies three-phase power to a Y-connected three phase winding having three groups of two coils, forming twelve electromagnets which drive the rotor.
ABB's gearless mill drive system should improve energy efficiency and provide increased process availability at Teck's Carmen de Andacollo copper mine. ABB has successfully completed the commissioning of a 13.4 MW gearless mill drive (GMD) system for the Hipogeno project. The GMD powers an 11 m SAG mill at the mine in central Chile.
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%.
Fig. 4. Air gap monitoring system in a gearless drive. Gearless Drives for grinding mills. Gearless Drives are well proven stateof- the-art technology for large grinding mills. 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.
Traction elevators are one of the most commonly used types of elevators. They use a rope and pulley system to raise and lower the elevator cab. The weight of their cab is balanced by using a counterweight, which was first introduced in 1900. Nowadays, some elevators are using steel belts in place of steel ropes. … Continue reading "Geared vs. …
The outdoor version of the SIMINE Gearless Mill Drives has been successfully in operation since 1998. The design of the outdoor version takes into account the tough ambi-ent conditions as well as the absorption of solar radiation. The sealing system of the SIMINE Gearless Mill Drives is a proven design incorporating extremely low mainte-
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 …
Gearless mill drive system (GMD) Maximum availability and productivity Go gearless to meet your business objetives by exceeding standard availability targets in your grinding operations.
The goal of this course is to provide participants with the required practical knowledge and information on safe operation and maintenance of the gearless mill drive (GMD) system. This training will help to enhance the operation and the maintenance of the GMD in order to ensure a flawless execution of the maintenance tasks.
99 Electronics world magazine is one of the top electronics world magazine, journal and newspapers in India. Provide information about electronics products, traders etc.
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.
tional mill drive system, such as ring-gear, pinion, gearbox, coupling,, Cie) commissioned the first GMD ever, a 64 MW gearless motor for a ball mill at Ciments Lambert-Lafarge in Le Havre, France Still operating today, it has proven to perform cost-effectively and with long-term reliability, our gearless mill drives are designed to.
CHAPTER 30 ELEVATORS AND CONVEYING SYSTEMS. 3006.6 Plumbing systems. Plumbing systems shall not be located in elevator equipment rooms. 2006 INTERNATIONAL BUILDING CODE® 527 ELEVATORS AND CONVEYING SYSTEMS 30_ibc_2006.prn 3 M:dataCODES2006 I-CodesBuildingFinal VP_Chgo30_ibc_2006.vp Monday, December 19, 2005 11:40:36 AM …
Gearless Drive Mill And Crusher. Gearless mill drives Go gearless The gearless mill drive eliminates all mechanical components of a conven-tional 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...
ABB commissions gearless mill drive system at Peru's largest gold mine. 09 June 2008. ABB announced it has successfully completed commissioning of a 16.5 MW gearless mill drive (GMD) system for a SAG (semiautogenous) mill at Minera Yanacocha. The mine, located in Cajamarca, Peru, is the largest gold producer in Latin America.
Gearless Mill Drive Protection Improvements and Its Behavior at Minera ndida Ltda. ... all driven by gearless mill drive (GMD) systems. Table 1 gives ... thyristor supervision cards in the power part provide an optical . signal to the XV C513 receiver cards and through the XV C512
The gearless PRA 230 wheel drive is an external-rotor motor with built-in wheel bearing and is mounted directly on the rim. Successfully employed many times over, this wheel drive is maintenance-free, quiet and boasts impressive braking energy recuperation and a …
ABB gearless mill drive systems feature numerous benefits when compared with conventional geared drive systems: superior reliability, increased process availability, extended life span and improved energy efficiency. ABB delivered the world s first gearless machine drive in 1969, which is still operating at the Ciment Lamberg-Lafarge cement ...
A 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 ...
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 ...
gearless mill drive optical systems glamface . gearless mill drive accionamiento molino. ball mill motor drives ABB gearless mill drives GMD . 28 Jan 2015, ABB''s GMD is the most powerful mill drive system in the market to power semiautogenous (SAG), ball and autogenous, By mounting the rotor poles directly onto the mill, the mill itself becomes the rotor of the gearless.
DRA Global has installed over 120 mills, including a 23MW SAG Mill and an 18MW gearless drive mill, both world firsts. Due to well-established relationships with equipment suppliers and commercial laboratories worldwide, DRA Global's process engineering team and process designs are unrivalled in the industry and are known to add value to all ...
Gearless Belt Conveyor Drives: New Technology for high Capacity Systems (M. Dilefeld) If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.
Gearless Mill Drive Optical Systems polyimpex . Advantages of gearless drives on ball mills for installation and commissioning of four gearless ball mill drive systems gearless mill drive optical systems Get Price sag mill maintenance Automatic Mill To be familiarized with the ABB s Gearless mill drive system is the most powerful mill ing methods iron ore Get Price And …
Thermowells have long been considered the best solution for measuring temperature in industrial applications. Dr. Guruprasad Sosale explains how developments in non-invasive temperature measurement are offering new possibilities for comparable performance while cutting the time, cost and disruption associated with setting up new measurement points.
Elevator Encoders. Ensuring a safe and dependable ride every time is the goal in the elevator industry. Elevator encoders allow precise vertical lift and speed measurement control, which is imperative to ensure passenger and mechanical safety within US and Canadian ASME A17.1, and CAN/CSA B44 manufacturing compliance standards.
The focus of this work is an investigation of the electromagnetic part of a gearless mill drive based on real system data which is part of a larger project building a multiphysics model including ...
gearless ball mill imag, gearless drive is used at Cadia 20 MW, a ball mill, and a SAG mill,, for example mills with a direct drive or gearless .... 465 mw vertical grinding mill motor siemens - …
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 …