Abstract:In order to find out the influence of various operating parameters of the ball mill on the stratification behavior of the internal medium, this paper studies the axial stratification behavior of the internal grinding medium during the operation of the ball mill. With the help of discrete element tools and Lacey mixing index theory, orthogonal simulation experiments were carried out, and the effects of four parameters, including medium filling rate, cylinder rotation rate, number of lifting bars, and the angle of the face of the lifting bar against the ball, on the media stratification were investigated. The study concluded that: the most influential factor on the stratification behavior of the medium in the ball mill is the number of lifting bars in the barrel of the ball mill, followed by the rotation rate of the ball mill and the medium filling rate, and the least influential factor is the angle of the impact surface of the lifting bar and when the rotating speed of the cylinder is 67 RPM, the number of lifting bars is 0, and the angle of the lifting bars is 55°, the mixing effect of the medium particles in the cylinder is the worst, and the particle layering behavior is the most obvious.