In the ball mill, the liner and the wear-resistant stee […]
In the ball mill, the liner and the wear-resistant steel ball need to be used in conjunction with each other, and form a three-body abrasive wear with the material. Only by choosing the best liner and wear-resistant steel ball, the use of the ball mill can reach the ideal level and improve the grinding efficiency.
But what should we do? It should be said that the concept of basic hole system or basic shaft system in mechanical design is best understood. For the ball mill, the liner has a much greater impact on the production than the wear-resistant steel ball, so it should be made of a base plate.
Therefore, when choosing the liner and wear-resistant steel ball, the first thing to be determined is the liner, and the service life of the liner must be more than two major repair periods, and maintenance should not be carried out as much as possible. The liner with good reliability and high wear resistance is preferred. For example, the professional ball mill liner produced by Ningguo Kaiyuan Electric Power Wear-resistant Material Co., Ltd. has high wear resistance, can be customized according to customer needs, and has a long service life.
The hardness of the liner and wear-resistant steel ball should be greater than HRC50. Theoretically, the hardness of the grinding medium should be greater than or equal to 80% of the hardness of the grinding material in order to achieve the ideal wear resistance.
The liner is well decided, and the choice of wear-resistant steel balls is also very important. As long as the service life of the liner guarantees two major repair periods, it is necessary to advocate the best wear resistance of wear-resistant steel balls as the first choice. The principles of reducing costs, reducing labor intensity, and increasing operating rates should be adhered to. At present, many mines have begun to choose high chromium alloy cast balls. Compared with traditional forged balls and rolled balls, high chromium balls have better wear resistance and corrosion resistance, and are more cost-effective. They are ideal for mining and cement industries.