center drive for horizental ball mill for cement grinding

Center drive and side drive are two common drive modes for a ball mill Center drive grinding mill means the motor shaft extends along the axis of mill body while side drive has a motor located on the side of the mill and torque is transmitted via the large girth gear which is bolted on the flange of the mill body Materials are fed into the mill at a fixed flow rate along the shaftless

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 servicefriendly and fit for purpose design to provide highest throughput reliability

Ball mill with Central Drive Mill length Mil l diame te r M il l di amet er 5 3 2 3 2 1 3 5 6 6 4 4 Ball mill with Sid e Driv 1 Inlet 2 Outlet casing 3 Slide shoe bearing 4 Main gearbox 5 Mill motor 6 Auxiliary drive 1 3 Ball mill for cement grinding 3 Cement grinding – taking on the tough tasks Cement ball mills have to achieve the desired

In ore processing grinding is an essential step for the overall performance of any mine That is why the gearless drive of a grinding mill is one of the most crucial pieces of equipment in the concentrator and why it is subject to particularly high demands Siemens has provided about 80 SIMINE Gearless mill drives to the mining industry since

The grinding media balls in the ball mill are used in cement plant to help grind blocky or granular grindable materials produced in the cement manufacturing process so as to achieve the effect of grinding Vertical roller millVRM and clinker grinding mill and other cement grinding mill are also very common in cement plant

Horizontal roller mill Roll Press 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 7080 of critical speed on two trunnions in white metal bearings or slide shoe bearings for large

Nov 04 2020 · Mr Thangarasu has served as a process specialist at FLSmidth Pvt Ltd between 20082017 and a grinding expert horizontal ball mill and VRMs at HeidelbergCement’s Technical Centre – APAC region He is now general manager at Fives Combustion Systems Pvt Ltd

The cement ball mill is mainly used to grind cement clinker in cement production process and it also applies to grinding various ores and other grindable materials in industrial and mining enterprises such as metallurgical plant chemical plant and power plant and so on Our company has more than 40year experience on the manufacture of cement ball mill the quality of our product takes a

A 15 mio ta cement plant is having a closed circuit ball mill for cement grinding The mill has been operating with satisfactory performance interms of system availability and output however power consumption was on higher side 31 System Description Mill Rated capacity 150 th OPC at

In general ball mills can be operated either wet or dry and are capable of producing products on the order of 100 um This duty represents reduction ratios as great as 100 The ball mill an intermediate and finegrinding device is a tumbling drum with a 40 to 50 filling of balls

cement industry the ball mill was really an epochmaking breakthrough as for almost 80 years it was the predominant mill for grinding of raw materials and coal and still today is the most used mill for cement grinding Over the last three decades the vertical roller mill has become the preferred mill for grinding of

Working Principle The material enters into the cylinder through the feeding screw in the hollow shaft for grinding The cylinder is equipped with various sizes of grinding medium such as steel ball steel forging or the cylinder rotates at a certain speed around the horizontal axis the medium and raw materials packed in the cylinder under the action of centrifugal force and

Horizontal Ball Mill Drives Extensively field tested and proven in harsh cement applications our mill drive gearboxes cover all grinding applications up to 10MW per drive and we have single double and triple reduction gearing available depending on the required ratio and motor speed

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 servicefriendly and fit for purpose design to provide highest throughput reliability

Mill application features Frozen charge protection – Detects frozen charge in the mill minimizing equipment wear and liner replacements Coupling supervision – Detects if a failure or slippage occurs in the couplings and stops the system in case preventing major damages Standstill detection – Prevents the motors from restarting if the mill is still rocking or moving after a stop

the requirements The optimal drive type can only be selected after determining the mill size the need for variable speed and the characteristics of the electrical system of the plant Comparison of Drives Systems for Grinding Applications The question what drive system is optimal for SAG and ball mills

Oct 10 2016 · A cylindrical ball mill used for grinding the coarse material This mill should have a short length because the balls distributed uniformly over the entire length of the mill and during rotation obtained the same pulse The drum diameter of the cylindrical ball mill should be the greater the larger the pieces of crushed material Pic 3 Pipe

Grinding Equipment Grinding is the required powdering or pulverizing process when customers have a strict demand on final size ZENITH can provide proper grinding equipment and solutions for different applications such as XZM Series Ultrafine Grinding Mill whose output size

Sourcing Guide for Cement Ball Mill China manufacturing industries are full of strong and consistent exporters We are here to bring together China factories that supply manufacturing systems and machinery that are used by processing industries including but not limited to ball mill ball mill machine mill

Jan 07 2015 · Raw mills usually operate at 7274 critical speed and cement mills at 7476 32 Calculation of the Critical Mill Speed G weight of a grinding ball in kg w Angular velocity of the mill tube in radialsecond w 2314n60 Di inside mill diameter in meter effective mill diameter n Revolution per minute in rpm

Roller presses grind raw materials and cement in a costefficient way However the highly dynamic process causes excessive stress on the bearings of the grinding rolls and the two drive trains which ultimately fail and lead to unplanned stoppages An online condition monitoring system that uses acceleration sensors can help avoid such stoppages

Figure 82 Media motion in the tumbling mill 81 Grinding 811 Grinding action Figure 85 Effect of mill filling on power draft for ball mills The data is taken from Rexnord Process Machinery as critical speed is reached the center of gravity moves towards the center of the mill

Grinding mill grinding pulverizer vertical roller grinding Roller Grinding Mill Ball mill is widely used in Wet or dry open or closed circuit grinding Surface grinding of cement and building materials Grinding of ores and

Working Principle The material enters into the cylinder through the feeding screw in the hollow shaft for grinding The cylinder is equipped with various sizes of grinding medium such as steel ball steel forging or the cylinder rotates at a certain speed around the horizontal axis the medium and raw materials packed in the cylinder under the action of centrifugal force and

The cement mill is key equipment for the grinding process of the cement clinker after the crushing process of it It is mainly used in the cement silicate product industry After long term design and manufacture of the cement mill our company now has series of cement mill with various specifications to meet with different requirement from our

Mill application features Frozen charge protection – Detects frozen charge in the mill minimizing equipment wear and liner replacements Coupling supervision – Detects if a failure or slippage occurs in the couplings and stops the system in case preventing major damages Standstill detection – Prevents the motors from restarting if the mill is still rocking or moving after a stop

Flexible drive solutions for use in ball mills A ball mill is a horizontal cylinder filled with steel balls or the like 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

In mineral processing horizontal grinding mills must endure vibration shock loads moderate to slow speeds and a high concentration of particulates In these conditions contamination loss of lubricant and even improper mounting techniques can all lead to failures for pinions or trunnions

Oct 10 2016 · A cylindrical ball mill used for grinding the coarse material This mill should have a short length because the balls distributed uniformly over the entire length of the mill and during rotation obtained the same pulse The drum diameter of the cylindrical ball mill should be the greater the larger the pieces of crushed material Pic 3 Pipe

As the cement mill has the similar working principle with the ball millit is also called the cement ball other names of cement grinder and cement grinding machinethe cement mill owns multiple cabin separating boards which do better in grinding materials into the required particle size

Raw material ball mill also called raw meal ball mill is important grinding equipment in cement production process After being crushed the raw meal enters the raw material mill The raw meal is grinded into fine powder by the motion and squeezing of steel balls The raw material mill manufactured by Great Wall Machinery can meet the raw material supply of 2502500t d

Ball mill is the most widely used kind of grinding equipment Zenith Ball mills are widely used in various types of ores benefication electricity cement and chemical industries With high comminution ratioit can carry out dry or wet pulverizing and can meet demand for sustainable largescale production

Ball Mill Single chamber ball mills with classifying liners and dam ring with drying chamber and static or dynamic separator are commonly existing for coal grinding in cement plant for one or more kilns as per capacity Ball mill is a cylinder rotating at about 7080 of critical speed on two trunnions in white metal bearings or slide shoe

FLSmidth provides sustainable productivity to the global mining and cement industries We deliver marketleading engineering equipment and service solutions that enable our customers to improve performance drive down costs and reduce environmental impact

The cement mill is key equipment for the grinding process of the cement clinker after the crushing process of it It is mainly used in the cement silicate product industry After long term design and manufacture of the cement mill our company now has series of cement mill with various specifications to meet with different requirement from our

In the value stream map of cement manufacturing the raw mill feeding is an intermediate activity between Prehomogenization and raw milling and has not been discussed separately by most of the authors which can damage the grinding path and give rise vibrations issues For ball mills the installation is not considered generally necessary

Metallurgical ContentBall Mill TRUNNION BEARINGSTrunnion BRONZE BUSHINGSTRUNNION BASE AND CAPBall Mill LUBRICANT JACKSBall Mill PINION SHAFT BEARINGS The first part of the mill that we will look at is the TRUNNION BEARING This is a HYDROSTATIC BEARING which is a slow moving bearing that carries a heavy load Usually it is constructed from Babbitt’s metal If you happen to

Energyefficient Technologies In Cement Grinding Intechopen Oct 23 2015018332This mill is a major improvement of the cement grinding systems known today which are ball mill roller press HPGRball mill vertical roller mill and closedcircuit roller press for finish grinding Views of mill interior are given in Figures 10 and 11 Cemex 174 grinds the material by compressing it between a ring and a