Feeding methods and precautions of ball mill

What are the feeding precautions of ball mill? 1. Control the amount of material into the mill according to the quality requirements. 2. Strictly control the mixing ratio of various materials, try to be uniform feeding, not allowed a single material into the mill, sampling every hour 1-2 times the amount of feed. 3. Often observe changes in the current value of feeder, often listen to grinding sound, master the material into the mill. 4. According to the operation of the timely adjustment of feeding volume, to prevent the material inside the mill suddenly empty suddenly full, the material outside the mill suddenly crude suddenly thin. 5. Observe the various material flow, try to be stable. 6. Stable grinding sound, to prevent grinding sound too high or too low, strict control of the mill product quality. What are the main methods of uniform feeding of ball mill? 1. Spoon wheel feeding method: Material from the feed funnel into the spoon wheel, spoon wheel to lift it to the center of the cone into the sleeve, and then slipped into the mill. In order to avoid the leakage of material from the gap between the feeding hopper and the spoon wheel, the difference between the radius of the entrance to the spoon and the radius of the spoon should be greater than the height of the material, and add a seal in the annular gap. 2. Screw feeding method: After the material slides down from the feeding hopper to the spoon wheel, the rotating spoon wheel lifts the material, and then directly falls into the spiral sleeve located in the hollow shaft by the wheel. The inner spiral blade delivers the material to the ball mill. In order to prevent the hotter material and airflow from heat transfer to the main bearing, a certain gap is reserved between the hollow shaft and the spiral sleeve so as to form an air insulation layer. 3. Sliding tube feeding method: The material enters the tapered sleeve located in the hollow shaft of the mill through the slide tube and slides into the ball mill along the rotating cylinder wall. Sliding tube section oval. Sliding tube angle must be greater than the angle of repose of the material to ensure that the material flow. Sliding tube feed structure is simple, but there is a small amount of feeding the shortcomings of the hollow shaft for larger diameter and shorter length of the case.