A virtual experiment showing single particle motion on a linearly vibrating screen-deck

A virtual sieving experimental simulation system was built using physical simulation principles. The effects of vibration frequency and amplitude, the inclination angle of the screen-deck and the vibration direction angle of screen on single particle kinematics were predicted. Properties such as the average velocity and the average throw height were studied. The results show that the amplitude and the angle of vibration have a great effect on particle average velocity and average height. The vibration frequency and the screen-deck inclination angle appear to have little influence on these responses. For materials that are difficult to screen the vibration frequency and amplitude, the screen-deck inclination angle and the vibration angle should be set to 14 Hz, 6.6 mm, 6° and 40°, respectively, to obtain optimal particle kinematics. A screening process can be simulated reliably by means of a virtual experiment and these results provide references for both screening theory research and sieving practice.