Ball Miller

 It is a frequent job to maintain and repair the ball mill, and the maintaining work will directly influence the operation rate and its service life. Followings are the introduction to how to properly maintain and repair the machine during its employment process.

1.All of the lubrication oil should be discharged when it has been added into the mill for a continuous month of operation, the mill ought to be cleaned thoroughly and oil should be changed. In the later period, oil should be changed every six months companied with medium maintenance. 

2.The lubrication condition of each lubrication point and the oil level should be examined every four hours. 

3.The temperature rise of the lubrication oil of the main shaft should not exceed 55℃ when the mill is operating. 

4.During the normal operation of the mill, the temperature of the transmission bearing as well as the reducer should not exceed 55℃ and the maximal temperature ought to be below 60℃. 

5.Big and small gears transmit steadily without abnormal noise. Adjustment of the internal should be prompt when necessary. 

6.The ball mill operates stably without strong vibration. 

7.No abnormal fluctuation happens to the motor current. 

8.There’s no start in each joint part, and there’s no phenomenon of leaking oil, water or ores.

9.Add steel balls promptly according to their abrasion.

10.Stop the mill for maintenance if finding out any abnormal situation.

11.The mill liner should be changed when its abrasion reaches 70% or there’s 70mm long crack.

12.Change the liner bolts promptly when their damage lead to the start of the liner.

13.Change the main shaft when the abrasion is serious. 

14.Replace the grate of the grate ball mill when it cannot be welded any more. 

15.The other side of the gear wheel surface can be reused when one side abraded to a certain degree. 

16.Replace the small gear when there’s severe abrasion.

17.Weld the spiral of the feed and discharge immediately when it abrades and replace it when there’s no way for welding.

18.Repair the anchor bolt when it starts or gets damaged. 

It is a frequent job to maintain and repair the ball mill, and the maintaining work will directly influence the operation rate and its service life. In order to find the defect and to eliminate it to ensure a normal operation of the mill, except for daily maintenance, it also needs regular stoppage. It is suggested that you should check the vital parts carefully like hollow shaft, main bearing, cylinder, reducer as well as big and small gears etc., and keep specific records. Handle properly and arrange the medium repair and overhaul project according to the condition of the drawback.