Mathematical modeling of load's movement in lifter of intramill recirculation device inside tubular mill

Abstract

The paper presents the results of the mathematical modeling of load's movement in the lifter of the intramill recirculation divided inside the tubular mill. The lifter is rotating together with the mill drum and has a form of a radially mounted pipe with a hole in its side surface. The results of the mathematical modeling allowed explaining causes of load's partial sling-out from the lifter cavity and obtaining equations to describe the load's movements at different stages. The developed model allows correcting the design process of the intra-mill device and specifying the nature of its influence onto milling in the tubular mill with a higher accuracy.