1)Operational principle of ball mill
Generally speaking ceramics factories adopt intermittent ball mill. Within the inner tube of ball mill loaded are some alumina balls, materials to be grinded and a proper amount of water which are properly matched according to process requirement. When the inner tube turns around under the effect of motor, the grinding body will turn around and upward closely together with the inner wall and body of the inner tube with the effect of centrifugal force. The grinding body will be shot off with the effect of gravitation when it is brought to a certain height, and will dropt at a certain speed. During the above process, the materials within the inner tube will be crushed up with the dual effect of shock of grinding body and grinding.

2)Correctly install
Before installation, all the partial remaining of bricks and cement on the inner surface should be thoroughly removed, The smooth surface should be made hoarse, damaged iron surface should be repaired through welding if it is badly worn.
For installation, grout width should be about 1mm using #425 white cement. Brick should be laid from level area of ball mill and moving upward.
Surface area should be clean and kept wet by spraying water for 1 to 2 days to increase the cohesion for max hardness.
Finally, the ball mill should be filled with water for minimum of 10 days.