DRAWING UP A BALANCE FOR A GRINDING PLANT FOR PRODUCING LIMESTONE MEAL

Dry production of fine powders < 10 mu m is best carried out in ultra- fine grinding and classifying processes. To draw up a balance for an e ffective closed-circuit grinding system the grinding process can be de scribed by grinding invariants (throughput characteristics), and the u se of grading efficiency curves has proved successful for the classifi cation system. Simulation calculations for closed-circuit grinding sys tems for producing limestone meal are introduced on the basis of disco ntinuous and continuous grinding trials and corresponding classifier g rading efficiency curves, supported by CGC*) software solutions.