综掘工作面抽尘区域对旋流风幕控尘的影响
Influence of dust extraction area on swirling air curtain dust control in fully mechanized excavation face
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摘要: 为提高综掘工作面旋流风幕控尘效率，降低高浓度粉尘污染，运用数值模拟与工程实测相结合的方法分析了抽尘区域对旋流风幕控尘的影响规律。结果表明：随着抽风口距工作面距离增大，抽风筒距压风筒对侧巷道边壁越远，工作面流场控尘能力逐渐降低，高浓度粉尘扩散距离及扩散角均随之增大。基于模拟结果，确定了综掘工作面旋流风幕控尘的最优抽尘区域为抽风口距工作面2 m，抽风筒安设于压风筒对侧巷道边壁。通过工程应用，验证了数值模拟结论的有效性，掘进司机处粉尘浓度可降至24.6 mg/m3，风幕控尘效率达到91%。Abstract: In order to improve the dust control efficiency of swirling air curtain in fully mechanized excavation face and reduce the pollution of high concentration dust, this paper analyzes the influence of dust extraction area on swirling air curtain dust control by combining numerical simulation with engineering measurement. The results show that with the increase of the distance between the air extraction vent and the working face, the farther the air extraction duct is from the side wall of the roadway opposite to the air compression duct, the lower the dust control ability of the working face flow field, and the higher the diffusion distance and diffusion angle of the high concentration dust. Based on the simulation results, it is determined that the optimal dust extraction area of the swirling air curtain dust control in the fully mechanized excavation face is 2 m away from the working face, and the air extraction duct is installed on the side wall of the roadway opposite to the air compression duct. Through engineering application, the validity of the numerical simulation conclusion is verified. The dust concentration at the driver of driving machine can be reduced to 24.6 mg/m3, the dust control efficiency of the air curtain reaches 91%.
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[1] 胡胜勇，廖奇，王和堂，等.高瓦斯煤层综掘工作面风流-粉尘两相流动特性[J].煤炭学报，2019，44（12）：3921-3930. HU Shengyong, LIAO Qi, WANG Hetang, et al. Gas-solid two-phase flow at high-gassy fully mechanized within high gassy coal seam[J]. Journal of China Coal Society, 2019, 44（12）: 3921-3930.
[2] 董军，汪日生，于贵生，等.基于DPM压入式通风全岩巷综掘面粉尘运移规律数值模拟[J].煤矿安全，2016， 47（6）：190-193. DONG Jun, WANG Risheng, YU Guisheng, et al. Numerical simulation of dust migration law at fully mechanized excavation face of rock roadway with forced ventilation based on DPM[J]. Safety in Coal Mines, 2016, 47（6）: 190-193.
[3] 聂文，马骁，程卫民，等.通风条件影响长压短抽掘进面粉尘扩散的仿真实验[J].中南大学学报（自然科学版），2015，46（9）：3346-3353. NIE Wen, MA Xiao, CHENG Weimin, et al. Simulation experiment on effects of ventilation conditions on dust diffusion of the forced with long duct fan accompanied with short duct exhaustor in heading face[J]. Journal of Central South University（Science and Technology）, 2015, 46（9）: 3346-3353.
[4] 王文才，李晓芳，安宁.综掘工作面长压短抽通风系统风筒合理位置研究[J].煤炭技术，2019，38（4）：123-125. WANG Wencai, LI Xiaofang, AN Ning. Study on reasonable position of blower in long pressure short draft ventilation system in fully mechanized heading face[J]. Coal Technology, 2019, 38（4）: 123-125.
[5] ZHANG Xiaotao, CAO Shugang, LI Dewen, et al. Research on the air flow distribution law on the driving face based on wall-attached jet dust control[J]. Powder Technology, 2020, 360: 1006-1016. [6] 张义坤，蒋仲安，孙雅茹.附壁风筒对掘进工作面通风除尘的促进作用[J].煤矿安全，2017，48（12）：161-163. ZHANG Yikun, JIANG Zhong’an, SUN Yaru. Promotion effect of dust removal in heading face by ventilation duct with coanda effect[J]. Safety in Coal Mines, 2017, 48（12）: 161-163.
[7] 程卫民，王昊，聂文，等.压抽比及风幕发生器位置对机掘工作面阻尘效果的影响[J].煤炭学报，2016，41（8）：1976-1983. CHENG Weimin, WANG Hao, NIE Wen, et al. Impact of pressure pumping ratio and location of air curtain generator on the dust resistance effect in fully mechanized workface[J]. Journal of China Coal Society, 2016, 41（8）: 1976-1983.
[8] 马胜利，张强，张凯铭.综掘工作面风幕控尘除尘系统数值模拟研究[J].煤炭技术，2022，41（2）：87-89. MA Shengli, ZHANG Qiang, ZHANG Kaiming. Numerical simulation study on air curtain dust control system of fully mechanized excavation face[J]. Coal Technology, 2022, 41（2）: 87-89.
[9] 王建国，王康，樊亦洋.附壁风筒条缝参数对综掘工作面控尘效果的影响[J].煤矿安全，2021，52（6）206-210. WANG Jianguo, WANG Kang, FAN Yiyang. Influence of slot parameters of wall-attached air duct on dust control effect of fully mechanized mining face[J]. Safety in Coal Mines, 2021, 52（6）: 206-210.
[10] LI Yongjun, WANG Pengfei, LIU Ronghua, et al. Determination of the optimal axial-to-radial flow ratio of the wall-mounted swirling ventilation in fully mechanized excavation face[J]. Powder Technology, 2020, 360: 890-910. [11] 陈芳，张设计，马威，等.综掘工作面压风分流控除尘技术研究与应用[J].煤炭学报，2018，43（S2）：483-489. CHEN Fang, ZHANG Sheji, MA Wei, et al. Research and application of the technology of forced ventilation diversion to control and reduce dust in fully mechanized excavation face[J]. Journal of China Coal Society, 2018, 43（S2）: 483-489.
[12] WANG Hao, CHENG Weimin, SUN Biao, et al. Effects of radial air flow quantity and location of an air curtain generator on dust pollution control at fully mechanized working face[J]. Advanced Powder Technology, 2017, 28（7）: 1780-1791. [13] 龚晓燕，秦少妮，张永强，等.基于改变风筒出风口参数的综掘工作面风流场优化研究[J].煤矿安全，2017，48（12）：168-171. GONG Xiaoyan, QIN Shaoni, ZHANG Yongqiang, et al. Study on optimization of air duct outlet parameters of wind flow field in fully mechanized excavation face of coal mine[J]. Safety in Coal Mines, 2017, 48（12）: 168-171.
[14] WANG Hao, CHENG Weimin, SA Zhanyou, et al. Experimental study of the effects of air volume ratios on the air curtain dust cleaning in fully mechanized working face[J]. Journal of Cleaner Production, 2021, 293: 126109. [15] CHENG Weimin, YU Haiming, ZHOU Gang, et al. The diffusion and pollution mechanisms of airborne dusts in fully-mechanized excavation face at mesoscopic scale based on CFD-DEM[J]. Process Safety and Environmental Protection, 2016, 104: 240-253. [16] 王文才，张伟，耿荣，等.基于ANASYS的综掘工作面通风参数优化[J].煤矿安全，2018，49（3）：178-181. WANG Wencai, ZHANG Wei, GENG Rong, et al. Ventilation parameters optimization of fully mechanized excavation face based on ANSYS[J]. Safety in Coal Mines, 2018, 49（3）: 178-181.
[17] 陈绍杰，祁银鸽，李改革.压入式通风掘进巷道粉尘悬浮运移规律研究[J].煤矿安全，2022，53（4）：178-182. CHEN Shaojie, QI Yinge, LI Gaige. Study on dust suspension law in driving roadway with forced ventilation[J]. Safety in Coal Mines, 2022, 53（4）: 178-182.
[18] HUA Yun, NIE Wen, LIU Qiang, et al. The development and application of a novel multi-radial-vortex-based ventilation system for dust removal in a fully mechanized tunneling face[J]. Tunneling and Underground Space Technology, 2020, 98: 103253. [19] YIN Wenjing, ZHOU Gang, GAO Danhong, et al. Simulation analysis and engineering application of distribution characteristics about multi-stage atomization field for cutting dust in fully mechanized mining face[J]. Advanced Powder Technology, 2019, 30（11）: 2600-2615. [20] 聂文，程卫民，陈连军，等.旋流风幕扰动硬岩综掘面风-尘流场数值模拟[J].中国安全科学学报，2014， 24（3）：120-125. NIE Wen, CHENG Weimin, CHEN Lianjun, et al. Numerical simulation of swirl air curtain disturbed air-dust flowing field at hard rock fully mechanized workface[J]. China Safety Science Journal, 2014, 24（3）: 120-125.
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