Grinding In the ball mill, the grain size of the ore is further reduced by grinding and forging by the effect of grinding and forging between the steel grinding cylpebs used in iron mining until it is ground into a powder. Among them, the grinding steel forging used in iron mining plays a two-fold role in the ball mill, namely impact and grinding.
That is to say, after this process, the useful minerals and gangue minerals that make up the ore can be dissociated to the maximum extent to provide materials that meet the requirements of the next beneficiation process. Therefore, for the concentrator, grinding is a more important task. It is important to know that in the process of grinding steel forging and ore for iron mining, it is often the process of maximizing power consumption and metal materials consumption.
In the grinding operation, in the initial stage, the material is mainly subjected to impact from the forged steel for iron mining. After reaching a certain degree of fineness, the material is mainly pulverized by grinding between the steel forging or between the grinding steel forging and the inner lining. Normally, there is a point contact between the ground steel forging and between the ground steel forging and the inner lining, which is difficult to contact by wire or surface.
In view of this feature, when selecting the steel grinding cylpebs used in iron mining, it is generally considered to have its bulk density, strength, self-wear, appearance and surface condition. Because these factors have a great impact on the efficiency of the ball mill, that is, the quality of the slurry.
For example, if the steel grinding cylpebs used in iron mining has the same volume, when its bulk density increases, it means that the greater the mass, the greater the kinetic energy, the greater the impact and grinding force on the material, the easier it is to hit. Crushed and ground material. In addition, the ball mill of the same specification has a large bulk density of the steel grinding cylpebs used in iron mining, and the effective space of the ball mill in the case of the same load is small.