TY JOUR TI THE STUDY THE OBJECTIVE FUNCTIONS OF THE CAGE MILL WITH PRE-GRINDING OF MATERIALS KW disintegrator KW percussive elements KW pre-grinding KW performance KW energy consumption. JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Bulgakov , S.. AU Semikopenko, .. AU Vyalykh, S.V. PY 2017 IS 2 PB Belgorod State Technological University named after V.G. Shukhov