Because the mineral resources of our country is rich, so the kinds of mining equipment is also varied. Since the nineties, China began to introduce all kinds of new mining technology and mining equipment. Therefore, mining equipment moving towards automation and large, the efficiency and precision are also constantly improving. However, due to the excessive…

Ball mill is an important grinding in mineral processing production line equipment, the critical value of ball mill, here mainly refers to the rotational speed of ball mill barrel threshold for the effects of the production efficiency. Critical speed is one of the main data measure grinding machine working condition. The rotational speed of ball…