The application of HiCr grinding media at MMG Century Mine for improved grinding media consumption and metallurgy performance

The dual approach of examining the grinding media wear through a series of marked ball tests and investigating the impact of grinding chemistry on lead and zinc metallurgy using the MagotteauxMill® at MMG’s Century mine (Century) has resulted in the conversion of the plant to high chrome grinding media. The consequences of this change have been positive in terms of wear, with a reduction in media consumption, and no adverse effect on either the lead or zinc metallurgy.

C. Greet, D. Obeng, J. Kinal and P. de Bosscher