The ball mill steel ball is the medium for grinding materials in the ball mill equipment. The friction and friction between the steel balls and the material produce the grinding and peeling effect. It is an important basic component.

Widely used in cement plants, power plants, etc. High and low chromium multi-element alloy steel balls, high and low chromium multi-element alloy casting and forging.

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It plays a huge role in the development of the national economy. Under some special conditions, steel balls of special materials are often needed to complete the functions required in different environments. In fact, some special material steel balls have been widely used in various fields of the national economy, including high chromium steel balls; high chromium steel forgings; low chromium steel balls; low chromium steel forgings; chromium series liners; manganese series liners; hammer heads; Multi-component alloy steel balls; multi-component alloy lining plates; various wear-resistant materials;. Their promotion and application not only promote the development of the ball mill steel ball production industry, but also promote the technological development and progress of related industries.

The output of the ball mill is not only affected by the loading capacity of the steel balls, but also related to the diameter of the steel balls. It is required to have a certain ball diameter and maintain a certain proportional relationship between balls with different ball diameters. Generally, the size range of the ball diameter in the cylinder is 25-60mm. If the cylinder is full of large-diameter balls, the impact force will be greater, which is beneficial to crushing large pieces of coal. However, due to the large gap between the balls and the small relative surface area, the squeezing and grinding effects will be weakened, which will be detrimental to the coal mill. The output and coal fineness are both unfavorable. There are too many small-diameter steel balls in the cylinder and the impact force is small, which will reduce the output of the coal mill. At the same time, due to the relative increase in the surface area of ??the steel balls, the wear of the steel balls will increase, and the power consumption of coal grinding will increase.

For example, during the operation of a coal mill, the weight and diameter of steel balls are constantly decreasing due to wear and tear, so new balls need to be added regularly to maintain a certain loading capacity of steel balls. Generally, large-diameter balls are replenished, and the amount of replenishing balls should be determined based on the steel ball wear rate (the amount of steel ball wear per ton of coal ground) and the amount of coal grinding. After the coal mill has been running for a certain period of time, the number of small-diameter steel balls in the cylinder increases. Therefore, generally after about 3,000 hours of operation, the machine needs to be shut down to clean the steel balls to remove balls with a diameter less than 15mm and broken balls, and to make up for new balls at the same time.