Analysis of Advanced Process Control for Grinding

Johannes Sikström, Senior Development Engineer, Boliden

The most energy-intensive step in a mineral concentration plant is grinding, in some cases 40% – 50% of the total site consumption. Optimizing the grinding operations has the most impact in power consumption and mill throughput. Seeq was used to perform analysis of the mill power utilization in Boliden Garpenberg to identify the potential and then the performance of a new advanced process control system. The results of the assessment and early evaluation will be presented here.