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<p>Screening Efficiency (SE) and Screen Surface Load (SSL) are important factors for the vibrating screening process design. In this work, inherent mechanism for the collaborative optimization of SE and SSL in our previous study is further explored numerically. Firstly, the particle-screen collision motion and the particle swarm screening motion are studied to reveal the SE&amp;SSL related particle behavior. Then, the particle swarm behavior characteristics in both high SSL and low SSL modes are comparatively studied. In addition to enhanced local screened particles mass uniformity, the low SSL mode is about 47% lower in particle mass and 55% faster in flow velocity. Finally, the correlation between particle swarm behavior and process parameters, leading to high SE and low SSL, has been summarized. With small vibration amplitude 4.3&#xa0;mm, low frequency 13&#xa0;Hz and small vibration direction 50°, the vibration intensity <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\:{K}_{v}\)</EquationSource> </InlineEquation> is maintained at the lowest level 2.24, which indicates small particle-screen impact force and short throwing cycle. A large inclination angle 4.7° helps release the gravitational potential energy of particles, together with the small vibration direction, resulting in a rapid flow velocity, which suggests low particles mass. While small impact force and low particles mass are beneficial to the SSL reduction, rapid flow velocity with short throwing cycle, enabling sufficient particle-screen contacts, tends to maintain the high SE. This paper provides a deeper insight into the mechanism of high-performance vibrating screening.</p> Graphical abstract <p></p>

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Mechanism analysis of collaborative optimization for screening efficiency and screen surface load in vibrating screening process

  • 期刊论文

  • 发表日期：

    2025年11月13日

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  • Weimin Jing,
  • Tong Wang,
  • Huan Zhang

摘要

Screening Efficiency (SE) and Screen Surface Load (SSL) are important factors for the vibrating screening process design. In this work, inherent mechanism for the collaborative optimization of SE and SSL in our previous study is further explored numerically. Firstly, the particle-screen collision motion and the particle swarm screening motion are studied to reveal the SE&SSL related particle behavior. Then, the particle swarm behavior characteristics in both high SSL and low SSL modes are comparatively studied. In addition to enhanced local screened particles mass uniformity, the low SSL mode is about 47% lower in particle mass and 55% faster in flow velocity. Finally, the correlation between particle swarm behavior and process parameters, leading to high SE and low SSL, has been summarized. With small vibration amplitude 4.3 mm, low frequency 13 Hz and small vibration direction 50°, the vibration intensity \(\:{K}_{v}\) is maintained at the lowest level 2.24, which indicates small particle-screen impact force and short throwing cycle. A large inclination angle 4.7° helps release the gravitational potential energy of particles, together with the small vibration direction, resulting in a rapid flow velocity, which suggests low particles mass. While small impact force and low particles mass are beneficial to the SSL reduction, rapid flow velocity with short throwing cycle, enabling sufficient particle-screen contacts, tends to maintain the high SE. This paper provides a deeper insight into the mechanism of high-performance vibrating screening.

Graphical abstract