International Journal of Frontiers in Engineering Technology, 2026, 8(1); doi: 10.25236/IJFET.2026.080108.
Wang Xiang1,2, Nie Yunhui1,2,3
1National Engineering & Technology Academy for Coal Mining, Huainan City, Anhui Province, 232001, China
2Ping’an Kaicheng Intelligent Security Equipment Co., Ltd., Huainan City, Anhui Province, 232001, China
3School of Safety Science and Engineering, Anhui University of Science and Technology, Huainan City, Anhui Province, 232001, China
The contra-rotating axial-flow fan for mining is a local ventilator used in underground coal mining operations. However, the fan generates loud aerodynamic noises during operations, severely impacting the physical and mental health of operators as well as safe production. Based on the FBDNQ7.0/2*45 contra-rotating axial-flow fan for mining, this study employed model design, numerical simulations, and experimental validation to develop and design inlet and outlet silencers for the fan, so as to reduce fan noises to meet standard requirements, and carried out structural optimization on the silencers to reduce pressure losses and ensure the fan’s operational efficiency.
Axial-flow fan; Silencer; Numerical simulation; Noise control
Wang Xiang, Nie Yunhui. Design Research on Contra-rotating Axial-flow Fan Silencers for Mining. International Journal of Frontiers in Engineering Technology (2026), Vol. 8, Issue 1: 50-58. https://doi.org/10.25236/IJFET.2026.080108.
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