Function: A cement mill is a drive used to grind the hard, nodular clinker from the cement kiln into the fine grey powder that is cement. Most cement is currently ground in ball mills and also vertical roller mills which are more effective than ball mills. Process: Raw materials are fed to the mill in right proportion with the help of weighfeeders.
The Baldor•Reliance Severe Duty motor line offers a variety of choices. These motors are designed to operate at any cement plant application and are inverter... Get Price. CG Double Cage Motor for Cement Mill. ( High Voltage Motors ) For the raw and cement ball-mill twin drives Slip Ring or other wound type rotor ...
the motor, analyzes the fault reason of ball mill ... One ball mill used in a cement factory,the drive arrangement is as shown in Figure 1. ... being ground passes through the sieve by rotor ...
The EPM rotor starter is normally used to control the starting of a slipring motor, and the starting current is generally limited to a maximum of 250% FLC. Optimal starting torque for each application is normally selected by the choice of the initial value of resistance.
DOUBLE CAGE MOTOR FOR CEMENT MILL. For the raw and cement ball-mill twin drives Slip Ring or other wound type rotor motors are used all over the world. CG Hungary is the first in the world to successfully break this tradition with double Squirrel Cage motors supplied to Duna-Dráva Cement Company at Beremend.
Havre in France. In the first few years, the GMD was only used in the cement industry. The GMD is also known as "wrap-around motor" or "ringmotor". Almost 25 years later, the first GMD with 12.0 MW power and 13.0 rpm was installed in the minerals industry. Since then, numerous GMDs for ball mills and SAG mills have been installed in the
14 x 23 ft (4.3 x 7 m) FLS ball mill with 3,000 HP - Two piece shell - Run for only 1.5-2 years - Currently installed - Lubrication system - 3,000 HP induction motor - Clutch - 284 tooth bull gear, with 28 in face - 18 tooth pinion with 28.5 in face - Babbitt bea...
1. The base strength and stiffness of the ball mill are not enough. Many cement plants have changed directly into a closed-circuit system by the open system in the technical transformation, and neglect the basis of the ball mill, thereby causing the ball mill body vibration.In this case, the cement plant can be solved by the basis of the reinforcing ball mill.
DIRECT CONNECTED Ball Mill DRIVE. When power exceeds 300 HP a direct connected drive is recommended. This drive is also applicable for lower power requirements if desired. Synchronous motors are preferred, but in some cases wound rotor motors may be used. Motor speeds will vary from 225 rpm to 450 rpm.
Aug 28, 2016· First start for cement mill in cement plant driven by Elin motor 63 MW 138 KV with liquid rotor starterElectric motors, generators & controls engineering - Liquid starter The motor drives a cement ball mill,, In an old motor shop we had a liquid starter that we used to load test our generatorsWe used a brine solusion in it and.
For ball and SAG /AG mills with a single or double pinion, motors with squirrel cage rotor are normally used when constant speed and low starting current are required.
Ball Mills | Air Classification | United States. RSG Inc, located in Sylacauga, Alabama U.S.A. specializes in fine powder technology. The company manufactures air classifiers, ball mills and stirred media mills for the production of fine, superfine and ultrafine powders for the mineral, mining, cement, lime, metal powder and chemical industries.
For the raw and cement ball-mill twin drives Slip Ring or other wound type rotor motors are used all over the world. CG Hungary is the first in the world to successfully break this tradition with double Squirrel Cage motors supplied to Duna-Dráva Cement Company at Beremend.
Cantoni Motor. three-phase motor 2SUg200L8. 400V IP55 with slip ring. three-phase motor. 2SUg200L8. Torque: 147 Nm ... raw and cement ball-mill twin drives Slip Ring or other wound type rotor motors are used all over the world. CG Hungary is the first in the world to successfully break this tradition ...
Strong relationships. For the raw and cement ball-mill twin drives slip-ring or otherwound type rotor motors are used all overthe world. Ganz - first in the world - successfully broke this tradition with double squirrel cage motors supplied to Duna-Drՠva Cement Company at Beremend.
difficultto process, transport, install and maintain the gearless ball mill because of its vast volume, and the coils cannot be decoupled freely. Therefore, this work proposes a module combined permanent magnet motor with wrapped type for mine ball mill (MBMWT‐MCPMM). Based on the principle of removing coils, the stator is modular-ized.
Ball Mill Positioning Introduction Ball mills are used in many industries to grind coarse material into a finer powder. A ball mill typically consists of a horizontal cylinder partly filled with steel balls that rotates on its axis, imparting a tumbling and cascading action to the balls. In cement manufacture, clinker is fed
Roller press with Ball mill. Ball Mill Ball mills with high efficiency separators have been used for raw material and cement grinding in cement plants all these years. Ball mill is a cylinder rotating at about 70-80% of critical speed on two trunnions in white metal bearings or slide shoe bearings for large capacity mills.
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.
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 ABB's experience in optimizing gearless solutions for grinding applications extends over 50 years,
why it is used wound rotor motor in cement mills. Ball Mill Drives Mineral Processing Metallurgy. Motors considered are the squirrel cage motor wound rotor motor and synchronous motor One important advantage of the synchronous motor is the possible correcting of power factor within your operation through its use When using a synchronous motor we recommend …
ball mill liquid rotor starter - Hitlers Hollywood. MORE DETAILS: Ball Mill Liquid Rotor Starter. ball mills the starting torque restrictions of some of the newer mill drive configurations and the softness of some utility drive 1 a 5000 hp 1200 rpm wound rotor motor with liquid rheostat and power factor drive 3 a 5000 hp 514 rpm synchronous motor with …
In the past the conventional method of driving large ball mills included some form of speed reducing gear between the higher speed driving motor and the lower speed ball mill. Process developments in the mining and cement industries have increasingly tended toward the use of ever larger ball mills for grinding their products. As the horsepower drive ratings required …
1. The basic strength and rigidity of the ball mill are insufficient. During the transformation process, many cement plants directly converted to closed-circuit systems through open-circuit systems, ignoring the foundation of the ball mill equipment, resulting in vibration of their main bodies. In this case, the cement plant can solve it by ...
High Voltage Wound Rotor Induction Motor YRKS series High Voltage Wound Rotor Induction Motor are used in the motors of heavy-duty starting equipment such as ball mills, rolling mills, sugar mills, crushers, etc. Inquire Now. JR slip ring motor for ball mill JR ball mill motor adopts rotor string resistance full-voltage start-up, which has the ...
Mill Drives. For electric motors, mills count amongst the most complex machines in the industry. The heavy starting alone makes the start-up of an electrical machine noticeable. In addition to this, there are also frequent ignitions and unwanted vibrations. A ball mill, which already has a high moment of inertia in itself, is filled with ...
Cement plant motor manufacturing is one of our main product focuses. Cement mills, fans, shredders - in the production of cement, particularly large and efficient motors are required for the most diverse processes. MENZEL offers individual motor solutions for all applications in the cement industry up to 13.8 kV and 25 MW.
The subject of this paper is a synchronous drive of grinding ball mills 4 MW, 150 rpm, 6 kV, 50 Hz on the base of PWM CSI. The system is installed at the …
The cement ball mill is mainly used for grinding the finished products and raw materials of cement plants, and is also suitable for grinding various ore and other grindable materials in industrial and mining enterprises such as metallurgy, chemical industry, and electric power. Cement grinding is the last process of cement production, it is to ...