SELF-GRINDING DRUM MILL LINING Russian patent published in 2001 - IPC

FIELD: grinding equipment. SUBSTANCE: mill lining has alternating sets of lifters made in the form of elastomeric bars of different height with many-sided working surfaces defining wavy working surface of lining, whose lower parts are reinforced with insertion members arranged in slots and connected by fastening members to mill drum. Each set of bars has two outer bars of equal height and two middle bars extending beyond two outer bars of equal height. Working surfaces of all bars are made two-faced and are arranged in symmetry with respect to bar set plane of symmetry so as to define stepped ascending and descending branches of working surface waves. Each bar of each bar set is equipped with several longitudinal through channels arranged in middle portion. Reinforcing insertion members are connected to contacting slot surfaces by curing. EFFECT: increased efficiency in material grinding and prolonged service life. 7 cl, 4 dwg