Availability of sports ball mill cylinder body of research mill in grinding process, the cylinder body grinding media and mineral material situation is very complicated sport. Meanwhile, in the grinding process, because many variable parameters, it is very difficult to study, especially a ball mill at different sizes, speed and media filling ratio, etc., the mill material (including material and grinding media composition), the movement of It will become more complex and more diverse. Ball mill cylinder body material and grinding media are doing the falling motion, it is difficult to do a detailed study of their motion; specifications as ball mill, due to the different application sectors and loading, resulting in the required drive power vary widely, this so accurately determine the mill drive power of great difficulty. In a ball mill, whether falling or dropping the ball spilled to do sports, or a mix of both sports, moving the ball mill energy state is changing. When the motion to the highest point, ball mill also has potential energy and kinetic energy. When the ball thrown down from the highest point of contact as for mineral aggregate, all the energy is converted to kinetic energy of the ball against the mineral aggregate, finally converted to mineral material deformation, cracks and expansion energy and the surface energy of broken material, the ball reaches the cylinder bottom, cement mill, a sports cycle. For the grinding media to obtain the highest possible energy from the outside world, and as much as possible and reasonable is absorbed mill steel balls get more kinetic energy, the sun ball, to crush the material, it is necessary that the ball mill grinding media group Paola do as much movement. With the advent of discrete element method numerical simulation method of ball movement more intuitive media group research with new ideas and methods. According to Ball Mill cylinder body and the characteristics of the material, we based on the discrete element method, numerical simulation with PFC3D as calculation tools. Model ignores the crushing process and the loading of the axial movement of materials. By setting the density of the ball in the proceedings, the motion characteristics of gravity and surface friction coefficient and the wall of the cylinder body, ball mill price, achieve medium cylinder body motion simulation, and ultimately get the media role in the liner strip and the cylinder wall of force to give the ball kinetic energy, vibrational energy, and energy boundary. At the same time, you can get visual contact force media groups and media motion vectors between populations. Noise pollution noise pollution ball mill method of governance is troubled mill manufacturers a big problem, opposite noise on workers, maintenance personnel injury and damage to the health of the environment, which we conducted in-depth exploration and analysis. The following is a summary of the content, conclusions, we see it, that we can play a supporting role in the research. Sources of noise mill (1) noise generated in the cylinder when the cylinder is rotated, the ball and the ball hit each other, between the ball and the steel cylinder mechanical noise generated, processing mill, out through the barrel 115dBA radiated noise levels up above the noise, wide bandwidth. (2) motor noise electromagnetic noise generated by the motor and gear machinery operation generated airflow generated by the fan noise. Noise with motor power and speed is proportional to the motor, the noise level is generally 90dBA-115dBA. Transmission machinery noise is mainly due to the interaction between the friction between the gears collide and components produced. Mill noise control method (1) damping insulation layer wrapped with insulation material Zuni mill cylinder wrapped up, thereby reducing noise barrel. This method is generally lower 5-10dBA, less than ideal. (2) acoustic cover with insulation cover the barrel portion mill closed, blocking the way to the noise of the rumor, which reduces the radiated noise barrel. This method is effective, generally noise may increase to 20dBA. But after installing acoustic enclosures, maintenance and operation work so difficult. At the same time as the motor and transmission machinery enclosed in acoustic enclosures, resulting in the ventilation equipment, cooling difficulties, inspection, maintenance work is also very inconvenient. (3) rubber liner instead of manganese steel liner cylinder liner was changed from the original manganese steel liner rubber lining, can greatly reduce the impact noise between double ball and barrel, noise reduction is 12-15dBA, the effect is obvious, but there are still problems like rubber liner life. Dry ball mill | North Mine Zhongcheng (certified) | Chaoyang ball from Shenyang North Mine Zhongcheng machinery Limited. Shenyang North Mine Zhongcheng equipment Limited (sybkzc.com) (www.sybkzcjq.com) Liaoning Shenyang, machining leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In North mine public into leadership with the staff warmly welcome all inquiries negotiations to create the North mine public into a better future.