The main structure and characteristic parameters affecting the working performance of vertical screw stirring mill were analyzed and studied,and the selection method of key working parameters was proposed.Based on the discrete element method,the simulation model of vertical screw stirring mill was established,and the effects of spindle speed,agitator lead and grinding medium size distribution on grinding performance were analyzed.The comprehensive grinding performance index was put forward,orthogonal tests were carried out for each parameter,and the quantitative value of grinding effect was obtained,and then the optimal working parameter combination under specific weight coefficient was obtained,which provided a reference method for the optimal design of the mill.
关键词
立式螺旋搅拌磨机/磨矿性能/离散元/工作参数/正交试验
Key words
vertical screw stirring mill/grinding performance/discrete element/operating parameters/orthogonal test
维普
万方数据