Ball Mill is primarily used for fine grinding. It is key equipment which repulverises the material after it is crushed. Kefid company has been amongst the pioneers for many years in the design and application of milling systems for the size reduction of a wide variety of materials including minerals, ores, and coal. There are two kinds of ball mill, grate type and overfall types due to different ways of discharging material.

Ball Mill mainly includes the inlet part, outlet part, revolved part ,drying part(reducer, drive gear, engine , control panel). The main body of the grinding chamber adopts the welded frame and the liner is replaced. The revolved gear adopts the welded technique, and there are abrasion liners, which have good performance. Ball Mill is widely used in powder-making production line including cement process, new-type building material, refractory material, ore dressing of ferrous metal and non-ferrous metal, glass ceramics, etc.

Technical Parameter

Traditional methods, the ball mill during the processing of materials usually can play two effects, one is broken effect, one is the grinding effect. General sense, breaking effect can be broken using other ancillary equipment to complete.The ground level of the direct effect of the impact of factors can be attributed to the control of ball speed.

As a general rule, the speed of ball mill mainly from the basic power distribution equipment and gear drive gear and pulley device control.For large ball, since the drive motor to start the beginning of a great loss when the energy, and because the ball inertia force can not effectively use reducer mill to effectively control the speed in a short time.In cement production, cement ball mill into production, its breakdown of the number of cement particles and cement products taste directly linked to the size of ball speed.Well, that is, as long as improve their speed and the speed control system through the material out of a difference in their level of production or output to maintain a constant speed changes can greatly status companies to create more profits. However, because there are some reverse gear torque limit, can not indefinitely increase the speed of ball mill, after reaching a certain level, if that deliberately continue to increase speed, often driven gear coil mill burned, resulting in equipmentdiscontinued, the general maintenance cycle mill in 1-2 weeks.Such consequences are no different from a serious economic consequences for enterprises. 

Correct operation of the cement ball mill method
1.planetary ball mill gear dust cover must be tight to prevent dust, sand intrusion.

2.if found with the main gear bearing sediment may or invasive treatment should be immediately stopped and cleared, and definitely not delay.

3.the planetary ball mill large tile heating, the occurrence of an accident or near Burnt Burnt should take immediate measures for forced cooling may not be immediately stopped, to avoid causing “axle” vicious accident.

4.must be strictly enforced to the mining, water supply, add the ball of the provision prohibiting overload, attention to prevent “belly up” phenomenon, while to the amount of ore is not too small.Also not allowed to load Operation, avoid to damage the liner.

5.fixed ball screws should be added hemp liner ring seal to prevent leakage, leakage of slurry.

6.the gap between the liner for the 10-20mm for the replacement (available when oxygen welding cutting too tight).

7.the planetary ball mill no more than two consecutive start, the first and second should be an interval of 5 minutes.Starting the third time must be approved by electricians, fitters with the examination before starting.

8.the same workshop with several ball shall not also start two synchronized machine.