Mining Ball mill for Sale

Ball mills still see extensive use for the production of fine powders; however, these tend to be predominantly dry applications in specific industries. Industrial minerals applications make extensive use of dry ball mills, often using ceramic grinding media (to avoid metal contamination of the product) for the production of fine and ultrafine powders. Ball mills in these applications are typically operated in closed circuit with dynamic classifiers. Long tube mills (length-to-diameter ratios in excess of 3 to 1) and batch mills are also used. For wet minerals applications, the application of tumbling ball mills is declining and limited primarily to very large tonnage applications and relatively coarse grinds. The efficiency advantages of stirred media mills over ball mills have largely seen the fine and ultrafine applications move away from conventional tumbling ball mills. At coarser grinds, the stirred media mill requires approximately 30% less energy than a ball mill. For ultrafine grinds, this advantage increases to more than 50%. The data shown in this example are comparative data from closed-circuit pilot milling campaigns using a conventional ball mill and a Vertical mill. Media size and feed were identical for both mills. These relationships hold for full-size mills and are typical of the relative performance of stirred media mills in general when compared to conventional ball mills.