Horizontal roller mill (Horomill®) application versus hybrid HPGR/ball milling in finish grinding of cement

Industrial scale Horomill® and hybrid HPGR/two-compartment ball mill applications at puzzolanic portland cement production were presented with emphasis on the general operational characteristics of the circuit configurations, size reduction and energy efficiencies of the Horomill® and two-compartment ball mill grinding conditions. Horomill® circuit configuration indicated to have advantages in terms of production of high strength cement as compared to Hybrid HPGR/two-compartment ball milling, depending on the classification performance of the separators influencing the circuit performance.