TY JOUR TI ENERGY-SAVING COMPLEX RESEARCH KW cube-shaped crushed stone KW directional feeds KW grinding units KW energy conservation KW anisotropic rocks JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Romanovich, A.A. AU Prokopenko, V.S. AU Lapteva, M.A. AU Chetverikov, B.S. AU Annenko, D.M. PY 2026 IS 11 PB Belgorod State Technological University named after V.G. Shukhov