Large Electromotor Ball Mill Drive System

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. ABB’s GMD is the most powerful mill drive system in the market to power semiautogenous (SAG), ball and autogenous (AG) mills, This ’workhorse’ for grinding operations combines a robust, service-friendly and fit for

large electromotor ball mill drive system As a leading global manufacturer of crushing grinding and mining equipments we offer advanced reasonable solutions for any size-reduction requirements including quarry aggregate and different kinds of minerals

Ball mill includes electric motor (driving force) reducer, fluid coupling, auxiliary motor, brake coil, belt pulley, cylinder and etc. Original control system runs at a constant speed, we can only determine the necessary time of manufacturing

This cylinder rotates around its axis and transmits the rotating effect to the balls. The material fed through the mill is crushed by the impact and ground as a result of the friction between the balls. The drive system can either consist of a central drive (central gear unit: helical gear unit or planetary gear unit) or a girth gear unit with pinion design (central gear unit: helical gear unit)

Oct 22, 2016 Oct 22, 2016 Motor speeds should be between 580 and 1160 rpm. The lower speeds apply to large diameter mills, the higher speeds to the smaller. 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

TMEIC2 installed its first AC adjustable-speed motor drive system for a rolling mill main stand in 1980; by January 2004 TMEIC had installed AC adjustable-speed motor drive systems on more than 700 main mill stands, coilers and reels, constituting more than 2,400 MW of installed main drive power. 2. TMEIC: includes equipment supplied by Toshiba

Variable Speed, Variable Speed Drive, Semi-autogenous mill, Ball mill, efficiency, drive system . INTRODUCTION . ... development efforts over the last few years have resulted in the appearance of a large variety of cost and ... An electric motor (asynchronous or synchronous machine

secondary mill power that permits the range of vari- ability samples to be processed according to whether a “SAG Mill limiting” condition, i.e., harder ore, or a “Ball Mill limiting” condition, i.e., softer ore exists. For example, a ratio of 1:1.5 or up to 1:2 would indicate a trend away from processing harder ore types and

drive, barring drive, turning gear, jack drive, or auxiliary drive. It is a mechanical system used to turn the equipment at a slower than normal operating speed. The device normally utilizes an electric motor or a multi-cylinder internal combustion (IC) engine in conjunction with

2. When the original ball mill drive system is replaced by the variable frequency speed regulation system, the mill will surely work normally at low speed, and the normal process control will be guaranteed. The ball mill and the motor will have longer life and low maintenance. 3. With the variable frequency drive, the ball mill will be able to

Jun 19, 2015 Jun 19, 2015 The ball mill motor power requirement calculated above as 1400 HP is the power that must be applied at the mill drive in order to grind the tonnage of feed from one size distribution. The following shows how the size or select the matching mill required to draw this power is calculated from known tables ‘the old fashion way’

Slip ring electric motors for ball mill, cement mill and raw mills. The first class manufacurer and suplier of large slip ring motors with fast delivery time and high flexibility. Type asynchronous slip ring electric motor Power 160 to 5000kW Voltage 400V, 690V, 3300V, 6000V, 6600V, 11000V Frequency 50Hz or 60Hz Number of poles 4, 6, 8, 10

Ball mills are known worldwide as straightforward and a reliable comminution system, used in cement and mining applications. Two fundamentally different philosophies exist to drive horizonal mills: While the gear unit and the electric motor of a central drive are located at the front of the mill and take up a lot of space, the lateral drive is

The Department of Mechanical and Material Engineering at UWA had a batch ball mill which was available for the tests. This batch ball mill was adapted to suit the experimental equipment. The rig consisted of an electric motor, a 20:1 gearbox, drive shaft and a 0.3 m diameter by 0.3 m long drum