Abstract: In order to effectively solve the problem of low separation efficiency of breathing dust in coal mines, a mathematical model describing the coupled airflow-dust transport inside the virtual impact separator was established based on the Euler-Lagrange method. A three-dimensional separator, materialized by precise 3D printing technology, was used to study the separation efficiency, and the maximum deviation of the separation efficiency between the experimental results and the simulation results was 6.32%. Then, the mechanism of the three influencing factors of dust density, secondary flow ratio and sampling flow rate on the separation efficiency was analyzed by mathematical model. It was found that the separation efficiency curve of each particle size showed a gradual decrease with the increase of dust size, and the separation efficiency curve with a density of 1 610 kg/m3 was the closest to the BMRC curve. The effect of sampling flow rate on the separation efficiency of each particle size can be effectively reduced when the sampling flow rate is controlled between 1.8 L/min and 4.5 L/min. The results of the study provide theoretical guidance for the development and application of virtual impact separation technology.
于海明, 程煜, 程卫民, 王玉环, 董慧, 徐荣萧. 虚拟冲击分离效能的多因素影响机制研究[J]. 材料导报, 2025, 39(7): 24010217-8.
YU Haiming, CHENG Yu, CHENG Weimin, WANG Yuhuan, DONG Hui, XU Rongxiao. Study on the Mechanism of the Influence of Multiple Factors on the Effectiveness of Virtual Impact Separator. Materials Reports, 2025, 39(7): 24010217-8.
1 Wang G F, Liu F, Meng X J, et al. Coal Science and Technology, 2019, 47(8), 01 (in Chinese). 王国法, 刘峰, 孟祥军, 等. 煤炭科学技术, 2019, 47(8), 01. 2 Liao X X, Zhang J X, Guo G L. Journal of China Coal Society, 2010, 35(1), 1 (in Chinese). 缪协兴, 张吉雄, 郭广礼. 煤炭学报, 2010, 35(1), 1. 3 Hai Y. Jilin Labour Protection, 2015, 11, 39 (in Chinese). 海洋. 吉林劳动保护, 2015, 11, 39. 4 National Health Commission. Occupational disease report 2010-2021, 2021(in Chinese). 中华人民共和国国家卫生健康委员会. 2010-2021年职业病报告, 2021. 5 Hounam R F, Sherwood R J. American Industrial Hygiene Association Journal. 1965, 26(2), 122. 6 Hu J Y, Su S, Wu F K, et al. Computer Aided Engineering, 2013, 22(2), 10 (in Chinese). 胡景彦, 苏圣, 吴丰凯, 等. 计算机辅助工程, 2013, 22(2), 10. 7 Xu Y X. The numerical simulation and analysis on separation perfor-mance of vertical oil-water separator in ship. Master's Thesis, Dalian Maritime University, China, 2012 (in Chinese). 许永信. 船用立式油水分离器分离性能的数值模拟与分析. 硕士学位论文, 大连海事大学, 2012. 8 Wu X C, Wang H, Hu Q, et al. Journal of Zhejiang University (Engineering Science), 2011, 45(8), 1458 (in Chinese). 吴学成, 王怀, 胡倩, 等. 浙江大学学报(工学版), 2011, 45(8), 1458. 9 Wang H. Study of velocity and size measurement of coal particles based on trajectory imaging. Master's Thesis, Zhejiang University, China, 2011 (in Chinese). 王怀. 基于轨迹图像的煤粉颗粒速度和粒径测量试验研究. 浙江大学, 2011. 10 Chen H Y, Huang H. Journal of Aerosol Science, 2015, 94, 43. 11 Liang X J, Zhang B Y, Ge Q X, et al. Journal of Environment and Health, 2012, 29, 593 (in Chinese). 梁晓军, 张宝莹, 葛覃兮, 等. 环境与健康杂志, 2012, 29, 593. 12 Zhao J, Liu M, Liang L, et al. Sensors and Actuators A-physical, 2016, 238, 379. 13 Kamiya H, Tsukada M, Szymanski W W, et al. Journal of the Society of Powder Technology, Japan, 2017, 54(6), 402. 14 Yamasaki S, Takahashi H. U. S. patent application, US9146188, 2015. 15 Jiang J K, Deng J G, Duan L, et al. Environmental Science, 2014(10), 3639 (in Chinese). 蒋靖坤, 邓建国, 段雷, 等. 环境科学, 2014(10), 3639. 16 Jiang J K, Deng J G, Li Z, et al. Environmental Science, 2016, 37(6), 2003 (in Chinese). 蒋靖坤, 邓建国, 李振, 等. 环境科学, 2016, 37(6), 2003. 17 Nie W, Liu Y H, Wang H, et al. Process Safety and Environmental Protection, 2017, 109, 716. 18 Nie W, Wei W, Ma X. Tunnelling and Underground Space Technology, 2017, 70, 400. 19 Camelli F E, Byrne G, Lohner R. Tunnelling and Underground Space Technology, 2014, 43, 20. 20 Cen K F, Fan J R. Journal of Zhejiang University (Engineering Science), 1987(6), 6 (in Chinese). 岑可法, 樊建人. 浙江大学学报(工学版), 1987(6), 6. 21 Shi X G, Xu X C, Feng J K. Journal of Engineering Thermophysics, 1989(3), 320 (in Chinese). 施学贵, 徐旭常, 冯俊凯. 工程热物理学报, 1989(3), 320. 22 Zhou G, Zhang L C, Liu R L, et al. Journal of Environmental Chemical Engineering, 2021, 9(6), 106861. 23 Zhou G, Liu Y W, Kong Y, et al. Journal of Environmental Chemical Engineering, 2022, 10(3), 107732. 24 Wang Y H, Yu H M, Yang X H, et al. Process Safety and Environmental Protection, 2023, 171, 119. 25 Shingler T, Dey S, Sorooshian A, et al. Atmospheric Measurement Techniques, 2012, 5, 1259. 26 Gao F. Coal and Chemical Industry, 2017, 40(1), 54 (in Chinese). 高飞. 煤炭与化工, 2017, 40(1), 54. 27 Liu Y. Coal Quality Technology, 2011(4), 14 (in Chinese). 刘焱. 煤质技术, 2011(4), 14.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2025, Vol. 39 
