DIMENSIONING A FORCED MOVEMENT WET GRINDER WITH A MACCABE AND THIELE CONSTRUCTION

The investigation into wet grinding, with the forced movement grinder, RSK LAB 10-25 MATTER PARTNER proved the efficiency of this grinder. T he essential parameters are the rotor and the feeding speed. The popul ation balance method showed that the coarse particles display a first order grinding reaction and a non linear grinding according to time du ration while the finest particles don't display a first order grinding reaction, but a linear grinding according to time. The energy study i ndicated that Bond's law applies to the first grinding cycle(s), subse quently Rittinger's law is confirmed. A dimensioning method, derived f rom the Mac Cabe and Thiele method, was used. This construction offers the advantage of anticipating the number of cycles needed for a prede termined size distribution.