Ball Grinder

Ball grinder is referred to as ceramic mill, which is divided into two categories: batch and continuous, but usually the use rate of batch ball grinder is high. The ceramic mill liner plate and grinding ball are made of ceramic texture, in order to make up for the inapplicability of the steel ball mill in some grinding operations. Ball grinders generally grind non-metallic minerals such as ceramics, potassium feldspar, quartz, and albite
Ball grinder is the lining plate of the ball mill is made of ball grinder, the structure can be divided into integral and stand-alone, ball grinder compared with other ball mills save power and time, easy to operate, stable and reliable performance.

Ball grinder is mainly used for mixing and grinding materials, uniform fineness of products, saving power. It can be both dry and wet. The machine can adopt different liner types according to production needs to meet different needs.

The fineness of the grinding operation depends on the grinding time to control itself. The motor starts from decompression to reduce the starting current, and its structure is divided into integral and independent types. This product has the characteristics of less investment, energy saving and power saving than similar products, novel structure, easy operation, safe use, and reliable performance. It is suitable for mixing and grinding of ordinary and special materials. Users can choose the appropriate model, liner, and medium type according to the specific gravity of the material, hardness, and output and other factors.

When the batch ball grinder is working, the material is fed into the hollow cylinder through the hollow journal for grinding. The cylinder contains grinding media (gravel, ceramic balls) of various diameters. When the cylinder rotates at a certain speed around the horizontal axis, the raw materials and media contained in the cylinder are under the action of centrifugal force and friction, and as the cylinder reaches a certain height, when their own gravity is greater than the centrifugal force, they will be ejected from the inner wall of the cylinder and thrown down or rolled down, and the ore will be crushed due to the impact force. At the same time, during the operation of the mill, the sliding movement of the grinding medium between each other also has a grinding effect on the raw materials.

In order to find defects in time and eliminate hidden dangers, to ensure the normal operation of its mill, in addition to daily maintenance, it is also necessary to stop grinding regularly, (it is recommended to do it once a month) for important components such as hollow shafts, main bearings, cylinders, reducers, large and small gears, etc. to carefully inspect, make detailed records, and make appropriate treatment and arrange repair and overhaul plans according to the priority of defects. So how to properly maintain and overhaul during use.

1. All lubricating oil should be released when the mill is put into continuous operation for one month, thoroughly cleaned, and replaced with new oil. In the future, the oil should be changed about once every 6 months in combination with the medium repair.

2. Check the lubrication status and oil surface height of each lubrication point at least every 4 hours.

3. When the mill is running, the temperature rise of the main bearing lubricating oil shall not exceed 55°C.

4. When the mill is running normally, the temperature rise of the drive bearing and reducer shall not exceed 55°C, and the maximum shall not exceed 60°C.

5. The large and small gears are transmitted smoothly and without abnormal noise. The gap should be adjusted in time when necessary.

6. The ball mill runs smoothly without strong vibration.

7. There should be no abnormal fluctuations in motor current.

8. There is no loosening of each connecting fastener, and there is no oil leakage, five tax leakage, or ore leakage on the joint surface.

9. Steel balls should be added in time according to the wear and tear conditions.

10. If abnormal conditions are found, stop the grinding and maintenance immediately.

11. The mill liner should be replaced when it is worn by 70% or has 70mm long cracks.

12. The liner bolt should be replaced when the liner is loose due to damage.

13. The main bearing should be replaced when it is seriously worn.

14. The grate plate of the lattice ball mill should be replaced when it is worn out to the point where it can no longer be welded.

15. The gear surface of the large gear can be turned over and continued to be used after wearing to a certain extent.

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