The study of the lining layer abrasing wear in the semi-autogenous grinding mill Mykola Sokur, Volodymyr Biletskyi, Mykhailo Fyk, Oleksandr Fyk and Igor Zaselskiy E3S Web Conf., 166 (2020) 03008 Published online: 22 April 2020 DOI: 10.1051/e3sconf/202016603008