Efficiency in technology
FLSmidth has several types of static and dynamic air classifiers that steepen the product curve and help to reduce or eliminate ultra-fines that could be problematic downstream. This can help with both mineral recovery and dewatering processes.
Vertical roller mill (VRM) and high pressure grinding roll (HPGR) technologies are highly efficient grinding tools capable of producing a fine product size that can reduce, or eliminate, the need for grinding media.
“Currently, our vertical roller mill technology lies in the cement group as almost all of our applications are cement or cement-based opportunities. We are looking to migrate this machine into mining — specifically our OK™ Mill which we believe is the best of the vertical roller mills available today,” says Joe.
If mines transferred to a more efficient dry grinding circuit, they could save between 20-30% energy consumption in the milling section, compared to a traditional wet milling circuit.