Patent ID: 9302268
Filing Date: 2016-04-05
CPC Classification: B02C

Claim Text:
1. A ball mill comprising a wear-resistant lining and a charge of grinding bodies or balls ( 6 ) having a non-worn state and, after use, a smaller worn state, the wear-resistant lining comprising a base ( 3 ) made of a material that is elastically deformable at a work surface ( 4 ), said material being rubber or other synthetic material having similar elastic deformability, the wear-resistant lining having a plurality of cavities or hollows ( 5 ) each of which is structurally shaped and dimensioned in relation to the structural shape and structural size of the grinding bodies or balls ( 6 ) such that the structure of the cavities or hollows ( 5 ) effectively correspond to the structure of the grinding bodies or balls ( 6 ) such that (A) when the ball mill is started and rotated and contains solely the charge of grinding bodies or balls ( 6 ), a portion of the grinding bodies or balls ( 6 ) in the non-worn state find themselves effectively inserted into and stably housed in said cavities or hollows ( 5 ), and (B) after the ball mill is operated thereafter, the grinding bodies or balls ( 6 ) which are stably housed in the cavities or hollows ( 5 ) become worn into the smaller worn state and come out of the cavities or hollows ( 5 ) and are thereafter replaced in the cavities or hollows ( 5 ) by other grinding bodies or balls ( 6 ) having the non-worn state.