Abstract
In recent years the applicability of high-speed stirred ball mills has been extended to process coarser feedstock and to produce finer product particle size. This development has been made possible by design- and process-related innovations, like the invention of new agitating and media separating systems and a device for continuous grinding processes that avoids separate slurry preparation completely. Due to higher power density and better grinding efficiency high-speed stirred ball mills are an interesting alternative to conventional tumbling ball mills for fine-grinding in the mineral industry. As a typical example the grinding of coal for coal-water slurry preparation is discussed. Experimental results are given which prove the potential of stirred ball milling.
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