Optimized design of a linear vibrating screen based on efficiency maximisation and mesh wear minimisation employing discrete element method--颗粒学报PARTICUOLOGY

Afsari, O., & Hashemnia, K. (2024). Optimized design of a linear vibrating screen based on efficiency maximisation and mesh wear minimisation employing discrete element method. Particuology, 90, 307-322. https://doi.org/10.1016/j.partic.2024.01.004

Optimized design of a linear vibrating screen based on efficiency maximisation and mesh wear minimisation employing discrete element method

Omid Afsari, Kamyar Hashemnia^*

School of Mechanical Engineering, Shiraz University, Molla Sadra St., Shiraz, Iran

10.1016/j.partic.2024.01.004

Volume 90, July 2024, Pages 307-322

Received 2 February 2023, Revised 11 September 2023, Accepted 5 January 2024, Available online 18 January 2024, Version of Record 7 February 2024.

E-mail: khashemnia@shirazu.ac.ir

Highlights

• Vibrating screen was numerically studied using the discrete element method.

• Optimal values for maximising efficiency and minimising mesh wear were determined.

• Screening efficiency and particles average velocity were inversely related.

• The most effective parameter on screening efficiency was the inclination angle.

• The most influential parameter on screen mesh wear rate was the feed rate.

Abstract

This article investigates the combined effect and the order of influence of feed rate, inclination angle, vibration amplitude, frequency, and angle on the efficiency and mesh wear rate of a linear vibrating screen, as well as the average velocity, and mass of the accumulated particles. The discrete element modeling simulations were conducted using LIGGGHTS open-source code to analyze particles behaviour. The Taguchi method was employed to evaluate the combined effect of the parameters. Finally, the simulation results were analyzed using analysis of variance. The optimal values of the parameters for maximising efficiency and minimising mesh wear were determined using grey relational analysis. The results indicated that the most effective parameters on screening efficiency and average velocity of particles were the inclination angle, vibration angle, frequency, amplitude, and feed rate, respectively. The most influential parameters on screen mesh wear rate were feed rate, inclination angle, vibration angle, frequency, and amplitude, respectively.

Graphical abstract

Keywords

Discrete element modeling; Granular material; Taguchi method; Vibrating screen; Wear

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