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Ball and SAG Mills
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Ball and SAG mills form the heart of many mining processes. Drive systems used must be very reliable. Drives are often required to produce high torque (typically 150% of rated or more) during starting.
Frequently mills turn at constant speed, but must be started on weak power systems. Variable speed drives are often used in such situations to accelerate the mill to synchronous speed, and then switch the motor to the utility for continuous operation. One drive often is used to service several mills, using contactors or breakers to select the starting motor. This makes the best use of drive hardware and gives high value to the mill.
When wound rotor motors are employed, the TMDrive-10 Slip Power Recovery Drive (SPR) can help make operations more efficient. This drive operates at high power factor with low harmonics. When operating below base speed the drive returns power to the line, saving on power consumption. The TMEIC SPR drive also allows operation above synchronous speed enabling increased throughput, within the mechanical limits of the system. It is also ideal for retrofits of existing previous generation current source SPR drives.
TMEIC Dura-Bilt5i MV, TMdrive-10, TMdrive-10 SPR, and TMdrive-70 are drives commonly applied to ball and SAG mills. Please click on any of these products for more details.
TMEIC application and sales engineers have extensive experience in the mining industry and are eager to work with you on your next project. Please call or email us using the contact information below.
| Contact Information | International |
|---|---|
| gi@tmeic.com +1-540-283-2300 Fax: +1-540-283-2392 |
gi@tmeic.com +1-540-283-2300 |
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