Ball mill is widely used in cement, silicate products, new building materials, refractory materials, fertilizer, ferrous and nonferrous metal and glass ceramics and other industries. After the material to be broken, and then to smash the key equipment. If the daily operations, pay attention to proper procedures, not only can improve operational efficiency, but also extend the life of the equipment. Before the operation 1, the connecting bolts should be checked before driving each ball is loose; if found loose in a timely manner will be tightened. 2. Check all lubrication points lubrication is reasonable, to ensure that the lubricant oil is suitable and clean. Also, check whether the normal and reliable transmission, guard is intact. 3. Check the rotating part of the device or around obstructions, and eliminated. Normal operation is an operation, check and correct, press the start button to start the motor, pay attention to current changes. Ball no more than two consecutive start, the first and second every 5 minutes. If the third start dry ball mill, to be with electricians, fitters with the check after beneficiation mill before starting. 2, after the normal operation of the ball mill, water supply to the mine, the amount of added according to the provisions of the ball. Non overload, idle time can not be more than 15 minutes of ball mill liner, so as not to damage the liner. 3, pay attention to check the operation of the cylinder for leaks pulp mill, carefully observe the current, voltage, feed, water supply is normal. 4, it should be inspected once every half-hour motor and spindle with the temperature not higher than 60 ° С, if problems should be addressed promptly. Operation after a shutdown, ball park should be preceded by stop to the mining, ore processing within the After standby, stop water supply. And all ready before shutdown. 2, after a period of time to run, to deal with all the ball selection, change into the new ball, in order to ensure the efficient operation of the ball mill. The speed of the ball mill grinding efficiency of the mill speed motion which always affect the mill grinding media and materials, and, due to changes in the rotational speed of the grinding media and materials doing different sports, different sports in the state , ball mill grinding efficiency is also changing. Ball mill grinding media and the material inside the ball at different speeds, can be divided into the following three types of motion: diarrhea fall-motion; the falling motion; centrifugal movement. Mill normal operating state or drain off into the falling type motion. Mill critical speed empirical formula where n - ball mill critical speed (r / min) D - the inner diameter of the cylinder (cm) by observing the experiment and practice analysis, the more the greater the amount of close to Ball Mill, grinding media, give full play to the role of the outermost layer of crushed material to, in order to make bigger mill efficiency. When informed by a theoretical calculation, from the angle of the outermost layer of the grinding media is 54.73 °, the outermost layer can obtain the maximum drop height of the material to most effectively crushed. From the practice found that when the ball's operating speed is adjusted to the critical speed of 0.75 to 0.85, you can make grinding media at a higher drop height. From the above analysis showed that the speed of the ball mill in which the best efficiency at work. Can also be seen, much more research analysis ball sport, you can benefit from. Dry-type ball mill, North mine Zhongcheng (certified), Ball from Shenyang North Mine Zhongcheng machinery Limited. Shenyang North Mine Zhongcheng equipment Limited (sybkzc.com) (www.sybkzcjq.com) Liaoning Shenyang, machining leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In North mine public into leadership with the staff warmly welcome all inquiries negotiations to create the North mine public into a better future.