Multiple parameter collaborative optimization of a particle separation equipment for coal cleaning production

Wang, Zhenqian; Wang, Xiaojie; Zhuang, Jiaojiao; Kou, Zhaojun; Liu, Chusheng

doi:10.1016/j.jece.2021.105646

Cited by 8 publications

(3 citation statements)

References 33 publications

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“…Vibrating screen is the key equipment in coal preparation industry, and it uses the vibration of the porous screen surface to complete the particle separation, so as to achieve the purpose of raw coal classification, dehydration, disintermediation, desliming, etc. [1,2]. The use of vibrating screen to screen coal can effectively improve the clean utilization rate of coal and achieve energy conservation, emission reduction and sustainable development [3,4].…”

Section: Introductionmentioning

confidence: 99%

Dynamic characteristics analysis of a circular vibrating screen

Wang¹,

Wang²,

Zhang³

et al. 2023

Vib. proced.

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Aiming at the structural reliability and operation stability of the vibrating screen, this study takes the 2460 double-layer circular vibrating screen as the research object, applies Creo to build a three-dimensional model of the vibrating screen, and uses ANSYS Workbench to analyze the dynamic characteristics of the vibrating screen. Through modal analysis, the natural frequencies and vibration modes of the vibrating screen are obtained. Through harmonic response analysis, the displacement and stress distribution of the vibrating screen at its working frequency are achieved. The analysis results show that the vibrating operates stably without transverse swing, the stress distribution of the screen body is uniform, can bear large dynamic loads, and has good structural strength and stiffness. This research provides a reference for the design of the domestic circular vibrating screen.

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Section: Introductionmentioning

confidence: 99%

Dynamic characteristics analysis of a circular vibrating screen

Wang¹,

Wang²,

Zhang³

et al. 2023

Vib. proced.

Self Cite

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“…Thus, it is the most cost-effective, reliable, and rudimentary guarantee for Chinese energy security -a base of its energy strategy. In 2020, Chinese raw coal output was 3.9 billion tons, with a year-on-year growth of 1.4 %, and coal consumption accounted for 56.8 % of the total energy consumption [2]. Chinese energy characteristics are as follows -it is coal-rich and has a low amount of oil and gas, which further cements coal as the main energy source.…”

Section: Introductionmentioning

confidence: 99%

Dynamic characteristics analysis of a novel vibrating screen based on electromechanical coupling simulation

Wang¹,

Wu²,

Kou³

et al. 2023

J. vibroeng.

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The vibrating screen with statically indeterminate mesh beam structure (VSSIMBS) is a novel type of large vibrating screen, which is widely used in coal preparation plants due to its high strength and processing capacity. In this study, the VSSIMBS motion differential equations were obtained via on Lagrange equation, and the dynamic vibration system model was established. The eccentric block force conditions during the operation were analyzed, and the stable vibrating screen operational conditions were obtained. The electromechanical coupling simulation model of VSSIMBS was built in Simulink, allowing frequency control and vibration synchronization experiments. Experimental frequency control results have shown that when the output characteristics of both motors are either the same or similar, synchronous movement can be achieved. Regarding vibration synchronization, experiment results have shown that when two motors are in synchronous motion, and the power supply of one motor is cut off, they still can operate synchronously. Thus, the experimental results obtained in this study provide a theoretical reference for improving the motion stability of large vibrating screens.

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“…When the linear vibrating screen screening operation, the material particles with the vibration of the screen surface rolling motion, improve the looseness of the material, to carry out the material stratification and according to the particle size separation, to achieve the purpose of screening (Kim et al, 2016;Li et al, 2015;Wang et al, 2021;Zhao et al, 2016). When the processing capacity of the screening operation is large, the material layer thickness of the single-layer vibrating screen is not conducive to the stratification and screening of materials.…”

Section: Introductionmentioning

confidence: 99%

Segmented research and parameter optimization of double-layer vibrating screen

Li¹,

Liang

Jia

et al. 2023

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PurposeThe purpose of this paper is to study the screen surface parameters of the double deck vibrating screen, in sections, to determine the influence of each part of the screen surface on the screening efficiency of the vibrating screen. Finally, the best screening parameters were calculated to obtain the best screening performance.Design/methodology/approachIn this paper, the discrete element method is used to simulate the process of two-layer subsection screening. Response surface test was used to analyze the influence of various factors and their interactions on screening results. Finally, based on the binomial regression model of screening efficiency, the optimal combination of vibration parameters is calculated.FindingsIn the screening process of vibrating screen, due to the different screening environments in each area of the screen surface, the single-layer linear vibrating screen with equal screen surface parameters cannot obtain the best screening performance. Among the single factors, the effect of vibration frequency is the most significant.Originality/valueTo address the issue of single layer linear vibrating screens with equal screen surface parameters being unable to maintain optimal screening performance when handling large amounts of materials. This article proposes a double layer vibrating screen with different screen surface grids and screen surface angles to address the problem of low screening performance of traditional single layer linear vibrating screens.

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Multiple parameter collaborative optimization of a particle separation equipment for coal cleaning production

Cited by 8 publications

References 33 publications

Dynamic characteristics analysis of a circular vibrating screen

Dynamic characteristics analysis of a circular vibrating screen

Dynamic characteristics analysis of a novel vibrating screen based on electromechanical coupling simulation

Segmented research and parameter optimization of double-layer vibrating screen

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