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Numerical Study of the Respirable Coal Dust Removal Performance of a Vortex Ventilation System at an Excavation Face

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  • Xiaofei Liu

    (State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China
    Department of Mining Engineering and Metallurgical Engineering, WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Kalgoorlie, WA 6430, Australia
    School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China)

  • Ping Chang

    (Department of Mining Engineering and Metallurgical Engineering, WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Kalgoorlie, WA 6430, Australia)

  • Enyuan Wang

    (State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China
    School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China)

  • Zhenguo Zhang

    (State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China
    School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China)

  • Shuai Yang

    (State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China
    School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China)

Abstract

Coal dust is one of the most serious issues in coal mines. The miners at an excavation face have a high potential for exposure to high concentrations of coal dust. The main method for removing coal dust is by ventilation. To better control the coal dust at the excavation face, it is important to understand the coal dust movement patterns and distribution characteristics. This paper used the computational fluid dynamics (CFD) approach to simulate coal dust movement under two different ventilation systems. The Eulerian-Lagrange method was used to study the gas‒solid two-phase fluid behavior. The coal dust concentration distributions under the two ventilation systems are presented and further compared. From the comparison results, it is found that a vortex ventilation system has better coal dust removal performance. This ventilation system is recommended for excavation for better coal dust control and miners’ health protection.

Suggested Citation

  • Xiaofei Liu & Ping Chang & Enyuan Wang & Zhenguo Zhang & Shuai Yang, 2018. "Numerical Study of the Respirable Coal Dust Removal Performance of a Vortex Ventilation System at an Excavation Face," Energies, MDPI, vol. 11(9), pages 1-18, September.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:9:p:2449-:d:169976
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    Citations

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    Cited by:

    1. Tadeusz Dziubak & Leszek Bąkała, 2021. "Computational and Experimental Analysis of Axial Flow Cyclone Used for Intake Air Filtration in Internal Combustion Engines," Energies, MDPI, vol. 14(8), pages 1-28, April.
    2. Ryszard Wójtowicz & Paweł Wolak & Agnieszka Wójtowicz-Wróbel, 2020. "Numerical and Experimental Analysis of Flow Pattern, Pressure Drop and Collection Efficiency in a Cyclone with a Square Inlet and Different Dimensions of a Vortex Finder," Energies, MDPI, vol. 14(1), pages 1-20, December.
    3. Dongmei Wu & Jie Gao & Ke Lu, 2022. "Dust Control Technology in Dry Directional Drilling in Soft and Broken Coal Seams," Energies, MDPI, vol. 15(10), pages 1-11, May.

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