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Experimental Study on Dust Suppression Effect and Performance of New Nano-Composite Dust Suppressant

Author

Listed:
  • Ming Li

    (School of Resources and Safety Engineering, Central South University, Changsha 410083, China)

  • Xinzhu Song

    (School of Resources and Safety Engineering, Central South University, Changsha 410083, China)

  • Gang Li

    (Sinosteel Maanshan General Institute of Mining Research Co., Ltd., Maanshan 243000, China)

  • Jiao Tang

    (School of Resources and Safety Engineering, Central South University, Changsha 410083, China)

  • Zhi Li

    (School of Resources and Safety Engineering, Central South University, Changsha 410083, China)

Abstract

In this paper, a nano-composite dust suppressant has been proposed to make up for the deficiency in wettability and moisturizing performance of a nanofluid dust suppressant. The nanometer material Al 2 O 3 , super absorbent polymer, carboxyl methyl starch sodium, and polyacrylamide were selected as effective components of it. The surface tension of the solution, evaporation resistance, and uniaxial compressive strength (UCS) were chosen as evaluation index to compare the suppression performance, these dust suppressants include the water, nanofluid dust suppressant and nano-composite dust suppressant, and the surface morphology of each tested material was observed by micro image analysis system. It was found that the surface tension and water loss rates of the nano-composite dust suppressants, respectively, decreased by 31.96% and 7.1%, and the maximum UCS increased by 31.82% compared with data of nanofluid dust suppressants. Since the nano-composite dust suppressant has good dispersion, permeability and bond performance, the suppressant film has fewer micro-cracks from the photos of microscopic image; it can improve the compactness and integrity of dust consolidation to prevent the evaporation of water and dust re-entrainment.

Suggested Citation

  • Ming Li & Xinzhu Song & Gang Li & Jiao Tang & Zhi Li, 2022. "Experimental Study on Dust Suppression Effect and Performance of New Nano-Composite Dust Suppressant," IJERPH, MDPI, vol. 19(10), pages 1-9, May.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:10:p:6288-:d:821174
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    References listed on IDEAS

    as
    1. Ming Li & Rujia Wang & Gang Li & Xinzhu Song & Huaizhen Yang & Huinan Lai, 2022. "Comprehensive Chemical Dust Suppressant Performance Evaluation and Optimization Method," IJERPH, MDPI, vol. 19(9), pages 1-14, May.
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    Cited by:

    1. Jianguo Liu & Tianyang Wang & Longzhe Jin & Gang Li & Shu Wang & Yixuan Wei & Shengnan Ou & Yapeng Wang & Jingge Xu & Minglei Lin & Jiahui Wang & Xianfeng Liu, 2022. "Suppression Characteristics and Mechanism of Molasses Solution on Coal Dust: A Low-Cost and Environment-Friendly Suppression Method in Coal Mines," IJERPH, MDPI, vol. 19(24), pages 1-19, December.

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