Abstract. Based on screening analysis, laser size analysis, grindability and rigidity tests of samples collected on line from a cement and a power plant, a simulation of the grinding process in vertical roller mills was carried out. The simulation calculation used a breakage function, B.
Rolling Circles. The circle rolling is the main process of product forming, which is divided into one feed and multifeed process. The number of feed times depends on the process (such as the cold roll is not allowed to exceed the allowable maximum deformation rate) and the equipment constraints (such as nonslip conditions and power conditions).