ball mill grinding media size

Cement grinding Vertical roller mills versus ball mills cement industry the ball mill was really an epoch-making breakthrough as for almost 80 years it was the predominant mill for grinding of raw materials and coal, and still today is the most used mill for cement grinding. ball mill big size grinding media distribution ball mill big size grinding media distribution offers 126 silica microspheres products. About 31% of these are refractory, 24% are oxide, and 6% are silica. A wide variety of silica microspheres options are available to you, such as powder, ball, and brick. Cement Kilns: Size Reduction and Grinding The length of the drum was around 50-55% of the internal diameter. Steel balls at about 25% volume loading were the grinding media. The mill was run at around 50% of critical speed, since cascading of the charge was not desirable because of the central shaft, and to avoid breaking the peripheral castings.    Read More

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