Research In Effect Of Ball Mill Angular-Spiral Lining Configuration On Grinding Effect

Ball mill is an important powder-made machine that has been extensively used in industries, such as mineral dressing. However, there are so many disadvantages such as higher consumption of power and steel, lower rate of energy utilization. Thus, according to these major problems, this paper mainly studies the structure of angular spiral liners for improving its comminuting efficiency.In this paper a0.6m×0.9m flutter ball mill is designed in the laboratory. To attain a reasonable performance from the angular spiral liners’ structures reform, some research work is carried out as follows:First of all, according to the main parameters--release angle and landing site--analyze the effects on media movement as the structures reform of the angular spiral liner. Secondly, based on the discrete element software of EDEM, the simulation on the structures reform is completed, the data of the media collision energy from it points out the grinding effect regularity. Finally, the actual experiment is designed in the prototype mill in the laboratory, aimed to establish a comparison with the simulation. The results are different from the simulation. However, the general trend is consistent. The number of edges increased, while the grinding effect is worse, and the30degrees mounting angle shows the best.Simulation and experimental results show that there is an optimal angle spiral liner structural parameters, where grinding effect is the best. Thus, this study could provide valuable reference for the design of angular spiral liners in ball mills.