Jiangsu Zhongbo Heavy Machinery Co., ltd

The most competitive enterprise in modern heavy machinery manufacturing!

Home > Knowledge > Content
Grate Ball Mill Maintenance
- Oct 15, 2018 -

The maintenance and repair of the grate ball mill is a regular work. The maintenance work directly affects the operation rate and service life of the ball mill. In order to find the defects and eliminate the hidden danger in time, the mill can run normally. In addition to routine maintenance, it is also necessary to stop grinding regularly. (it is recommended once a month) to carefully check and record important components such as hollow shafts, main bearings, cylinders, reducers, gears and so on. According to the defect situation, prioritize and arrange the middle repair and overhaul plan. So in the process of use how to correct maintenance and repair.

1All lubricating oils should be released, thoroughly cleaned and replaced when the ball mill is in continuous operation for one month. After the combination of repair about every 6 months to change oil.

2Lubrication conditions and surface height of each lubrication point are checked at least every 4 hours.

3When the grate ball mill is in operation, the temperature of the main bearing lubricating oil does not exceed 55 ℃.

4When the ball mill is in normal operation, the temperature rise of the drive bearings and reducers shall not exceed 55 ℃ and the highest temperature shall not exceed 60 ℃.

5Large, small gear running smooth, no abnormal noise. When necessary, the gap should be adjusted in time.

6Ball mill running smoothly, no strong vibration.

7There should be no abnormal fluctuation of motor current.

8No loose fasteners, no oil, water and ore leakage.

9The steel balls are added in time according to the wear condition.

10If abnormal condition is found, the ball mill should be stopped immediately.

11Mill liner should be replaced when worn by 70% or with long 70mm cracks.

12When lining bolt damage, damaged bolts should be replaced when the liner is loose.

13The main bearing should be replaced in case of serious wear.

14The grate plate of the grate ball mill should be replaced when it cannot be welded again.

15When large gear face wear to a certain extent it can be turned over to continue to use.