the speed of the ball mill: the current manufacturer's specified speed is about 75%, most of which is below 85%, the ball mill speed is slightly lower, it is difficult to achieve high productivity, the experience of some concentrators in China shows that the ball mill speed is properly increased The output of the ball mill has a certain increase, but the increase is small, and the energy and the consumption of the liner are very serious, and the vibration of the ball mill is also intensified. Therefore, if you want to control the ball mill, you must start from these three aspects to achieve better and more ideal work efficiency.