When Ball mill grinds fine material, its settings during its movement will be based on the material, steel balls, lining and so on to adjust the output, and ensure stable operation of the ball mill. Generally, a specification of fine material ball mill when fine grinding is quite narrow, and have broken small particle size. If medium scale size is over the broken range, it will increase the fragmentation size, which could easily lead to over crushed. In addition, it may also reduce the amount of padding ball, increase the difficulty of finely ground; if the media is too small, ball mill crushing size will be reduced, which will lead to repeat grinding and increasing energy consumption.
Fine material grinding need not only higher requirement for ball mill, but also for ore particle size range. Xinhai developed a specialized mill equipment for fine grinding of materials – wet overflow type ball mill. Its particle size range is generally between 25mm-0.074mm, and final grinding size can reach 0.1mm-0.043mm. It mainly uses in fine materials grinding and the second stage grinding.
The hollow shaft diameter infeed end of Xinhai fine material ball mill is larger than general hollow shaft diameter so that the inner surface of the pulp mill has a certain inclination. When the pulp face is over the discharge port, the pulp will overflow discharge. This kind of design is non-coercive high level of discharge, which has fuller grinding and better results. It can be widely used in various types of ore, cement, silicate products, new building materials, refractory materials, non-ferrous or ferrous metals, and other production industries.