A novel approach for grinding operation scale-up

We have developed a continuous theory for grinding of solids in batch and c ontinuous mills which includes only a few parameters, the values of which c an be obtained directly from data on a laboratory scale batch mill. This al lows an easy scale-up from a laboratory-scale batch mill to an industrial c ontinuous mill. Furthermore, the analysis presented indicates that a charac teristic material parameter, the "critical volume", plays an important role on the grinding process in general, and it is the only parameter which is affected by the additives. The performance of industrial mills is due to th e influence that additives may have on the value of the critical volume. (C ) 2000 Elsevier Science Ltd. All rights reserved.