首页|A study of particles penetration in sieving process on a linear vibration screen
A study of particles penetration in sieving process on a linear vibration screen
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This paper presented an investigation of particle collision and penetration using the discrete element method to understand the motion of particles and improve theoretical treatment in the sieving process. The process progressively was divided into looseness, stratification, collision, and penetration. Particle penetration has a direct effect on the screening performance. The penetration probability was defined, and the mathematical relationships between particle penetration and vibration parameters were established using the least squares method. To obtain the ideal penetration probability for materials the amplitude and frequency should preferably be near 3.0 mm and 25 Hz, respectively. The vibration direction angle has only a slight effect on penetration. The stage of the screening process from 0.1 to 0.7 s is the primary region for collision and penetration. This paper focused on the sieving process to more fully understand how particle collision and penetration influence the screening efficiency.
Penetration probabilityCollisionDiscrete element methodSieving process
Zhanfu Li、Xin Tong
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School of Mechanical Engineering and Automation, Huaqiao University, Xiamen 361021, China
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