TY JOUR TI RESULTS OF EXPERIMENTAL STUDIES OF A GRINDER WITH CURVED CUTTING ELEMENTS KW grinder KW curved cutting elements KW feed grain KW grain dirt KW particle size distribution KW grinding module KW specific energy intensity JO Vestnik of Omsk SAU AU SABIEV, U.K. AU SOYUNOV, A.S. PY 2023 IS 52 PB FSBEI HE Omsk SAU