Abstract
The development of coal industry is restricted by dust pollution. Air curtain dust control technology was proposed as a solution to the serious problem of pollution. A mixture of numerical modeling and field tests has been used to study this technology. Numerical simulation is used to analyze the dust control effect of this technology under different dust generation conditions. Field measurements are used to verify the effectiveness of this technology. The results show that following the application of this technology, the fan-shaped air curtain generated by the fans forms a trapezoidal protective area between the coal cutter and the sidewalk. This protective area prevents dust from entering the coal-cutter driver’s workspace. The average dust concentrations where the coal-cutter driver works were 1590 and 466 mg/m3, severally, before and after the implementation of this technology. The dust control rate in this space is approximately 70.69%. This research provides useful data for dust control technology in fully mechanized mining faces, and will contribute to the stable development of coal fuel.
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Funding
This work has been funded by the National Natural Science Foundation of China (NO. 51874191 and 51404147), the Focus on Research and Development Plan in Shandong Province (NO. 2017GSF20111), the National Key R&D Program of China (2017YFC0805201), and the China Post Doctoral Science Foundation (NO. 2015M570601 and 2017T100503).
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Wen Nie: supervision, project administration. Xu Zhang: conceptualization, methodology, software, numerical simulation. Huitian Peng: investigation, data curation. Dawei Chen: software, validation. Tao Du: assist in numerical simulation. Bo Yang: resources. Chengyi Liu: software.
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Nie, W., Zhang, X., Peng, H. et al. Research on air curtain dust control technology for environmental protection at fully mechanized working faces. Environ Sci Pollut Res 29, 43371–43384 (2022). https://doi.org/10.1007/s11356-022-18775-1
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DOI: https://doi.org/10.1007/s11356-022-18775-1