Research Progress on Ball Mill Grinding Technology

Ball mill grinder has been widely used in mineral processing, building materials, metallurgy, chemical industry, meanwhile crushing and grinding technology has also been a greater emphasis on, the current grinding technology process is mainly reflected in the following areas:

1. Large-scale mill research
One of the biggest advantages of large-scale mill for media is that you can simplify the grinding series, simplifying the operation and management, thereby reducing production costs. Moreover, large ball mill can reduce the ball size, ball height can compensate for lacking of ball diameter. But the utilization factor of large-scale ball mill is not as high as small and medium-sized mill. So from the energy point of view, the usage of too large scale mill is not much benefit. So before in the 1980s century proceeded large-scale grinding equipment after this trend has stopped.
2. The model of the motion of the medium
The model can be used to predict the impact force, velocity, wear and energy consumption of the ball. The experiment and industrial test results are compared and feedbacked to modify the model in order to achieve better prediction effect. .
3. Self-grinding instead of conventional grinding
The development trend of foreign self-grinding is: semi-self-grinding and ball milling, self-grinding and ball milling, self-grinding and gravel grinding. Because the self-grinding grind to a more fine-grained and its production capacity will reduce, energy consumption increase, so the back then connected to the ball mill or gravel mill is more cost-effective. Even so, in front of the self-grinding process power is still relatively high, some people think that non-industrial test have a very good grasp in order to choose, or risk.
4. " More crushing less grinding to replace of grinding " the technical principles and application are universal accounted
Crushing ore is restricted crushing, broken probability up to 70 ~ 100%, while the grinding is random broken, the probability is very low, the efficiency can as low as 10%. Therefore, from the ore grinding mill overall consideration, should increase the efficiency of the crushing of the load, and reduce the efficiency of low grinding load, that is, more broken and less grinding and grinding to grinding. In layman's terms the most favorable way is to reduce the size of crushed to ore crushing mill in general. Different researchers have different conclusions on this: the law of special twist • Knowles from the point of the lowest energy consumption, use the map method to determine the crushed ore particle size reduced to 12.7mm crushing and grinding of the lowest energy consumption; Professor Li Qiheng propose that crushing and grinding ore have equal capacity is most favorable balance.

Drawing on foreign and domestic research experience, and predecessor, Henan Zhengzhou Mining Machinery Co., Ltd. Owns ball mill production line base, which build factories in 1956, during the operation proceed continuous improvement of products. Our company can change the mill according to the customers actual needs to meet the requirement , in the practical application, and has been a good effect, grinding efficiency is better than other manufacturers of the same type of product.