7.1 Ball Mill drives with synchronous motor and air clutch/fluid coupling. 7.2 Ball Mill with slip ring induction motor. 8. Maintenance and operational issues 18 8.1 Synchronous motor and exciter 8.2 Slip ring induction motor and rheostat 8.3 Air clutch 8.4 Fluid coupling 9. Conclusions 21
Oct 22, 2016 When using a synchronous motor we recommend having 200% starting torque, 120% to 130% pull-in torque, and 225% pull-out torque. These assume no greater than a 10% voltage drop at the motor terminals. V-BELT Ball Mill DRIVE. V-belt or poly-V drives are generally used on grinding mills consuming 350 HP or less.
Synchronous machines can be found wherever there is a demand for highly efficient, cost-effective, dependable machines. They are frequently used for rolling, ball and sag mills, chippers, mixers, pulp refiners, pumps, fans, and compressor (reprocating and centrifical) drives.
Ball Mills for Sale RAM Opportunities LLC. 1, Ball Mill, GM085, 2ft x 3ft Ball Mill, Stainless Steel, Reliance Motor 1/2 hp, . with a 1,500hp Westinghouse Synchronous Motor, 720rpm, 4,000volts, Flak Drive...
Gearless Ball Mill Operation. The mill is powered by a synchronous motor rated 8750 hp, 14.5 rpm, 1.0.pf, 1900 volts, 3 phase, 4.84 hz, 1.0 service factor, class b insulation.the motor is mounted outside the mill discharge end bearing with the rotor overhung on a torque tube extension of the mill. Live Chat.
sincronous motor drive ball mill greenrevolution.in. Ball MILL drive motor choices666 Кб. In North America, the most common drive in the past has been the low speed synchronous motor driving through an open pinion and
Table 4, 5 and 6 include the technical data for the Copper Mountain ball mills. Table 4 general ball mill data Specification Data Mill size 7.315 M [24 feet] diameter by 12.039 M [39.5 feet] long Mill type Wet grinding, overflow discharge Mill drive motor size 17,000 HP Mill drive motor type Synchronous 200 RPM Inside diameter 7,315 mm
Variable Frequency Drive In Coal Grinding Mill. Jul 15 2019nbsp018332The Benshaw variable frequency drive powers the 4160v synchronous ball mill motor during positioning to smoothly rotate the ball mill providing full torque at zero speed to start and rotate the mill during the positioning process The use of a drive also provides speed
motors, and has the 4000kW test platform with grid feedback function for load test of synchronous/induction motors. The production capacity can reach 1500 units/year. Vector control is one of the high performance AC motor control modes. The vector control of induction motor is based on
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