How to Add Ball Mill Steel Ball in Proportion of Ball Diameter

Proportioning principle of ball mill 1 steel ball. According to the power of the main motor of the ball mill, the total amount of steel balls allowed to be loaded is determined. The load rate of steel ball filled space is generally 25%-35%. The lower the steel ball load rate, the lower the power consumption, but the lower the productivity. Therefore, the first prerequisite for verifying the total amount of steel balls added is that the sum of the weight of steel balls and the weight of materials in the mill should be less than or close to the allowable value of the motor power of the ball mill. 2. Determine the maximum diameter of the steel ball. 3. Use the specific surface area of steel balls to measure the rationality of steel ball ratio. The specific surface area of steel balls in the silo should reach 9.5- 10.5m2 per ton of steel balls. Roller press closed-circuit ball milling, this value can be adjusted to 12- 14m2/t steel ball. The lining used is of continuous lifting type. The specific surface area of the steel balls in the second bin should be 35-38m2/t, and it can be 38-40m2/t by roller press. The specific ratio between various ball diameters should be calculated according to the maximum packing density. 4, in line with the main functions of steel balls in each warehouse, and combined with the types of liners used. The largest clinker particle entering the silo is 30mm, so its main function is crushing. The diameter of the loaded steel balls should be between 50-90mm, and the clinker entering the second bin of the ball mill is less than 2-3 mm, so its function is fine grinding, and the range of steel balls in this bin should be15-50 mm. Because the fine grinding is mainly mutual grinding, the highest efficiency can be achieved by using a single size ball (20-25 mm) and setting a single corrugated liner. If steel balls with a certain diameter range are still selected in the second bin, a graded gasket can be used, so that the larger balls are close to the partition plate and the smaller balls are located at the discharge end. 5. Calculate the unit steel ball output and verify the rationality of ball matching.