Analysis on new motor speed of rotary vibration screenaffected to material kinematic characteristics

In order to solve a cumbersome of the available screening equipment and a not suitable fine coal sample preparation problem of the coal samples, a repeated applied inclined screen for a small rotary vibration screen was provided. Based on a multimer kinematics theory, a virtual prototype technology was applied to simulate the kinematic characteristics of the materials on the screen. With the comparison on the kinematic track, speed and angular speed curve of the material under the revolution of five set electric motors, the best motor revolution of the material kinematic characteristics and the interval between the motor speeds in the late test were obtained. A screening efficiency test was conducted at the interval of the manufactured test equipment and the verification was conducted on the simulation results. The result showed that when the material kinematic characteristics were in optimum, a max interval of the motor speed obtained from the simulation was 600 ～ 1 200 r/min. After the test conducted at the interval, the screening effect obtained within a motor speed ranging from 960 ～ 1 020 r/min was best and the simulation results could tally with the test results. The study could provide a new method to design the screen equipment and could provide an important basis to the late study.