Polymer wear resistant liner carbon steel up to 6 times, and the friction coefficient between coal only steel 1/3 ~ 1/4, Table friction conditions, the wear resistance is expected to reach carbon about 4 times stronger than steel, but low hardness polyethylene plate, with a knife can draw deep marks, coal bunker liner polymer, can not tolerate the impact of particulate material. In the coal drop tube in particular the use of coal in the coal crusher previous system is not feasible. To study the impact of coal bunker liner height mill power, high wear-resistant coal bin liner, were selected height 50MM, 100mm, 150mm and 200mm namely particle diameter of 0.5 1 1.5 2 times the coal bin liner, the other parameters are not change, the simulation results, the height of ultrahigh molecular weight polyethylene liner change will cause changes in the effective diameter of the ball, resulting in a greater impact on the mill's power. According mill power calculation formula, M is the effective mass of the material does not occur, i.e., moving away from the heart of the material quality, G is the gravitational acceleration Chong, R is the center of gravity of the material from the mill in a ball mill gravity center distance, W is the angular velocity of the rotating ball mill . At this time the speed of the ball mill was 60%, the material does not occur eccentric exercise, as the height increases UHMWPE linings, effective the same quality of materials, and to enhance the role of coal bunker liner material increases, Baotou coal bin liner, material lifting height increases, that R increases, therefore, mill power with increasing height increase coal bin liner, the impact frequency and the corresponding energy level of the material in the mill increases. Coal bunker liner polymer plastic _ Yu-cheap (certified) _ Baotou coal bunker liner by Dezhou Yu-Plastic Products Co., Dezhou Yu-Plastic Products Co., Ltd. (www.dezhouyuang.com) (www.dezhouyuang.com) is Dezhou, engineering leader, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. In Yu-plastic products led the staff warmly welcome all inquiries negotiations to create the Yu-plastic products a better future.