Method Of Producing Grinding Media Balls For Ball Mill

The Grinding Media Ball is the grinding material medium of the ball mill equipment. The friction between the steel ball and the material of the ball mill produces the grinding effect. Important basic parts, especially the precision industrial steel ball, play a huge role in the development of the national economy. Role. It is 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.

1. The steel ball manufacturing process used by the ball mill is roughly divided into two types: casting and forging. The main difference between them is that the wear resistance length is different. 1. Forged (rolled) steel balls: 50mn, 60mn, 65mn and high-alloy steel B2, B3, BU material forged hot-rolled steel balls, etc. 2. Cast steel balls: ordinary cast steel balls are produced by non-electric furnaces. Low chromium alloy cast steel balls are produced by electric furnace. Medium chromium alloy cast steel balls are melted by electric furnace. High chromium alloy cast steel balls are melted by electric furnace. %-30%).

2. Requirements for the steel balls of the ball mill: The output of the ball mill is not only affected by the load of the steel ball, but also related to the diameter of the steel ball. It is required to have a certain ball diameter and balls with different ball diameters to maintain a certain proportional relationship. Generally, the size range of the ball diameter in the cylinder is 25-60mm. If the cylinder body is filled with large-diameter balls, the impact force is large, which is beneficial to crushing large coals. However, due to the large gap between the balls and the small relative surface area, the squeezing and milling effects are weakened, which will affect the coal pulverizer. Both the output and the fineness of the coal powder are 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 relatively increased surface area of the steel balls, the wear of the steel balls will increase, and the coal grinding power consumption will increase accordingly.

3. The characteristics of the steel ball of the ball mill: The content of chromium in the cast ball is divided into high, medium and low chromium balls. Generally speaking, the medium and low chromium balls have poor wear resistance and high crushing rate. The price is relatively affordable. It's very high. The high chromium cast ball has good hardness and good wear resistance, so it has been well used in cement ball mills. However, the high chromium cast steel ball has poor toughness and is easy to break during the production process, and its cost is high. , The price is also high, which indirectly increases production costs.

 4. Application of ball mill steel ball: Ball mill steel ball is a kind of grinding medium used to grind ore in cylindrical ball mill. It is widely used in iron ore and non-ferrous metal mine concentrator, cement plant, thermal power plant, refractory plant , Steel mills, phosphate fertilizer plants and other grinding industries. When the ball milled steel ball grinds the ore, it will wear down and become smaller until it fails, so it consumes a lot of money.