Study on Impact of Vibration Direction on Linear Vibration Screening Effect
Based on Hertz-Mindlin contact model in software EDEM by discrete element method, using linear vibrating screen 360 mm×600 mm, movement characteristics of particle group on sieve plate and law of particles going through sieve plate were studied in screening process of coal in certain conditions, which were as follows: dip angle was 0 °, amplitude was 5 mm, frequency was 11 Hz.The simulation test results show that there are important influences of vibration direction on screening process.And influence law of vibration direction on screening effect was revealed finally.The paper also gained mathematical model between particle groups screening efficiency and vibration direction angle, and mathematical models of particles easy or hard to sieve and material between average movement speeds and vibration direction angle.
Discrete element method Vibration direction angle Screening efficiency Movement speed
Yue Min Zhao Ke Wang Liang Dong Bo Zhang Xu Liang Yang Zai Sheng Zhu
School of Chemical Engineering and Technology,China University of Mining and Technology,Xuzhou 221008,China
国际会议
上海
英文
186-190
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）