A study of particles penetration in sieving process on a linear vibration screen

Li, Zhanfu; Tong, Xin

doi:10.1007/s40789-015-0089-7

Cited by 18 publications

(12 citation statements)

References 16 publications

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“…Obviously, screen's simple harmonic motion along the vibration direction leads to where A x and a x are the vibration amplitude and phase offset in the x direction, respectively, and A y and a y are the vibration amplitude and phase offset in the y direction, respectively. Substituting Equations (2) and 3in Equations (4) and (5) leads to…”

Section: Translation Dynamic Analyses As Shown Inmentioning

confidence: 99%

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Design and Efficiency Research of a New Composite Vibrating Screen

Tong

Zhou

et al. 2018

Shock and Vibration

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A new composite vibrating mode is presented in this paper. Modeling and dynamic analysis are studied according to two-degree-of-freedom systems theory. The effects of vibration parameters, including swing angle, swing frequency, vibrating direction angle, and translation frequency, on the screening efficiency were researched by means of experiment research over a new laboratory-scale composite vibrating screen which is designed based on the new composite vibrating mode. The results are analysed in terms of curves and fitting equations. Compared to the translation mode and swing mode, the screening performance of the new composite vibrating mode, both in screening efficiency and in processing capacity, is significantly improved.

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Section: Translation Dynamic Analyses As Shown Inmentioning

confidence: 99%

“…Owing to the fact that linear vibrating screens have constant transport velocity and throw index, which are very likely to bring about poor separation, changing throw index for a high screening performance was discussed [1,2]. Meanwhile, better understanding of screening processes is critical in optimizing vibrating parameters.…”

Section: Introductionmentioning

confidence: 99%

Design and Efficiency Research of a New Composite Vibrating Screen

Tong

Zhou

et al. 2018

Shock and Vibration

Self Cite

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“…However, the motion of particles on the screen surface can be increased by properly improving the amplitude in the horizontal direction, 19 which is more conducive to segregation of particles in the screening process. 20,21 Furthermore, from the perspective of engineering projects, high cost of disc spring will greatly increase the total price of vibration screen. 22 It brings challenges to mass production of disc spring vibration screen.…”

Section: Introductionmentioning

confidence: 99%

Study on dynamic characteristics of leaf spring system in vibration screen

Zhou

Wang

et al. 2021

Journal of Low Frequency Noise, Vibration and Active Control

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By studying dynamic characteristics of the leaf spring system, a new elastic component is designed to reduce the working load and to a certain extent to ensure the linearity as well as increase the amplitude in the vertical and horizontal directions in vibration screen. The modal parameters, amplitudes, and amplification factors of the leaf spring system are studied by simulation and experiment. The modal results show that the leaf spring system vibrates in horizontal and vertical directions in first and second mode shapes, respectively. It is conducive to loosening and moving the particles on the vibration screen. In addition, it is found that the maximum amplitude and amplification factor in the horizontal direction appear at 300 r/min (5 Hz) while those in the vertical direction appear at 480 r/min (8 Hz), which are higher than those in the disc spring system. Moreover, the amplitude of the leaf spring system increases proportionally with the increase of exciting force while the amplification factors are basically the same under different exciting forces, indicating the good linearity of the leaf spring system. Furthermore, the minimum exciting force occurs in the leaf spring system under the same amplitude by comparing the exciting force among different elastic components. The above works can provide guidance for the industrial production in vibration screen.

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“…Sieving is a technique for separating particles of different sizes. It is widely used in many granular media industries such as the construction, mineral separation, medicine and food fields [1][2][3]. When small particles penetrate the plate under suitable vibration source, other particles run to outlet indicating that the screening process finished.…”

Section: Introductionmentioning

confidence: 99%

Performance optimization of banana vibrating screens based on PSO-SVR under DEM simulations

Li¹,

Li²,

Ge³

et al. 2019

J. vibroeng.

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This paper carried out the numerical simulation about the movement of non-spherical particles on banana vibrating screen using direct element method (DEM) considering the complexity of particle collision and avoiding obtaining motion information with difficulty. Experimental prototype of banana vibrating screen under variable parameters was manufactured to verify the feasibility of simulations. Because the complex non-linear mathematical model is the basis of optimization. Based on the simulation data this paper applied the least squares support vector machines (LS-SVM) to establish relationships between vibrating parameters of banana screen and screening performance. LS-SVM based on statistical theory can effectively solve the mapping problem of small sample. At same time, in order to improving the quality of modeling, the kernel parameters of SVM were optimized by particle swarm optimization (PSO). Considering multi-extremum, large-scale, and non-differentiable of this computational model, the artificial fish-swarm algorithm (AFSA) with strong robustness and global convergence was applied to vibration parameters optimization. Finally, the optimal vibration parameters were: vibration amplitude 2.4 mm, vibration frequency 21 Hz, vibration direction angle 40 degrees.

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A study of particles penetration in sieving process on a linear vibration screen

Cited by 18 publications

References 16 publications

Design and Efficiency Research of a New Composite Vibrating Screen

Design and Efficiency Research of a New Composite Vibrating Screen

Study on dynamic characteristics of leaf spring system in vibration screen

Performance optimization of banana vibrating screens based on PSO-SVR under DEM simulations

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