Energy estimation of the interaction of a roller vibratory classifier’s blade with crushed rock mass for solving design problemsVolodymyr Nadutyi, Valentyna Chеlyshkinа, Vitalii Sukhariev and Jamil HaddadE3S Web Conf., 168 (2020) 00058DOI: https://doi.org/10.1051/e3sconf/202016800058