Ultrafine Grinding in an Annular Ball Mill

The influence of stirring speed, solids concentration, media density and size on grinding in a CoBall mill is described. The relationship between the product size and the process parameters was determined. It was observed that the product fineness is dependent on the balance between energy input and the ease with which the slurry-media (grinding bed) can be fluidized. It was found that the capacity and energy requirements are the decisive factors in optimizing the process parameters. Media colour, wear rate and separation problems would exert appreciable influence on the choice of grinding media. Very fine particles can be produced at a high throughput under optimal grinding conditions, but the associated rapid rise in temperature may be a hindrance in some applications.

Abstract licence: CC BY

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