Inherent inefficiencies of the ball mill Vertical roller mill (VRM) technology was largely driven by the tremendous inefficiencies inherent to traditional ball mill grinding of finish cement. It is widely recognised that ball mills have the greatest specific power consumption along with the lowest energy utilisation of all grinding mills (Rosemann and Ellerbrock, 1998). The vast majority of power absorbed by a ball mill is converted into heat and sound. Although figures van,', it is not uncommon to see reports of 10% or less of the power absorbed within a ball mill converted into actual grinding energy.
展开▼
