Ball mill should be based on

　　The reasonable planning of the ball mill grinding body is mainly determined according to the physical chemical properties of the powder mill, the polishing method, and the product details of the product, mainly the following eight basis:

　　1, into the granularity of the material.

　　When the steel ball is loaded, the small steel ball is larger than the total surface area of ​​the large steel ball, and there are many opportunities to contact the material, and the energy of a single large steel ball is large and the impact is large. The average particle size of the powder grinded is large, the hardness is large, and the average scaller in which the steel ball should be large, and it should be small. The mill is small, and the average steel ball is also small. In addition, the raw material mill is larger than the cement grinding steel ball.

　　2. Enter the wear resistance of the material.

　　The easy milling of the material is good, and small steel balls can be used; the easy mill is poor, the big steel ball must be selected.

　　3, the volume of gas in the grinding unit is passed.

　　The size of the steel ball is also used to pass the amount of the inner unit volume material. When closed-circuit grinding, the retraction of the polishing machine increases the volume of the inner unit volume material, so that the steel ball is subjected to a certain buffer, and the amount of circulating is large, so the diameter of the steel ball should be selected. Some, it is ointment.

　　4. Fine requirements for abrasive materials.

　　When the fineness of the abrasive material is quieter, small steel ball should be selected appropriately.

　　5, single coal mills are generally used as steel balls without steel sections;two coarse mills are generally exfoliated with steel balls, and they use steel sections.

　　6, the grinding body must be equipped with the specifications of the steel ball usually 3-5, and the steel sections are generally 2-5.

　　7. The proportion of steel balls at all levels can be matched according to the two small and middle principles.

　　When using two steel sections, it can each account for half. 8. Under the premise of satisfying material granularity, the average particle size should be as small as possible to increase the number of contact area and unit time, and the diameter and length of the steel section are smaller, because the radial wear is fast, steel The difference between the length and the diameter is preferably 5 mm.