Numerical Modelling of Grinding in a Horizontal Bead Mill

Bead mill is the most widely used wet grinding equipment in the field of ultrafine grinding. The grinding device is the main working part of the bead mill. In order to optimize the design parameters of the grinding device and improve the grinding effect of the horizontal bead mill, it is necessary to conduct in-depth research on the flow field in the grinding chamber. In this paper, the structure and working principle of the bead mill were described, the physical model of the grinding device of the bead mill was established by using 3D modelling software, and the velocity, shear rate and turbulent kinetic energy of the flow field were obtained by numerical simulation of the flow field in the grinding device of the bead mill, the distribution and variation of flow field at different speeds were analysed. Concluding that the grinding near the pin rod and the cylinder wall is more fully obtained. With an appropriate speed, the grinding structures near these areas can be optimized to enhance the grinding effect.