Energy and Cost Comparisons of HPGRbased Circuits E
The HPGR-ball mill circuit when grinding to 75 um compared to 160 um used an extra 4.6 kWhmt but for the SABC circuit it only used an extra 1.8 kWhmt. The reported SABC circuit power for the 160 m grind size was based on actual site data. JKSimMet was used to fit a model to site DCS data. Thus there was considerable scope to reduce the .