基于动网格技术的水动力旋转喷雾降尘装置性能分析  

performance analysis of hydrodynamic rotary spray dust reduction device based on moving grid technology

作　　者：关维娟 陈清华 王德俊[2,3,4] 江丙友 许曾生[2,3,4] GUAN Weijuan;CHEN Qinghua;WANG Dejun;JIANG Bingyou;XU Zengsheng(School of Mathematics and Big Data,Anhui University of Science and Technology,Huainan 232001,China;Institute of Environment-friendly Materials and Occupational Health,Anhui University of Science and Technology,Wuhu 241003,China;Anhui Provincial Key Laboratory of Mining Intelligent Equipment and Technology,Anhui University of Science and Technology,Huainan 232001,China;Key Laboratory of Industrial Dust Prevention and Control,Occupational Safety and Health,Ministry of Education,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学数学与大数据学院,安徽淮南232001 [2]安徽理工大学环境友好材料与职业健康研究院(芜湖),安徽芜湖241003 [3]安徽理工大学矿山智能装备与技术安徽省重点实验室,安徽淮南232001 [4]安徽理工大学工业粉尘防控与职业安全健康教育部重点实验室,安徽淮南232001

出　　处：《工程设计学报》2025年第2期240-251,共12页Chinese Journal of Engineering Design

基　　金：国家重点研发计划资助项目(2022YFC2503201);安徽理工大学芜湖研究院研发专项资金资助项目(ALW2021YF12)。

摘　　要：水动力旋转喷雾降尘装置具有仅需水动力驱动、雾化效果好等优点,在煤矿井下工作面得到广泛应用。为了实现安全、精准、高效降尘,基于动网格技术对其性能进行了系统分析。采用DesignModeler软件建立了降尘装置三维模型,采用动网格技术分析了水轴出口角度对水流出口速度和水轴转速的影响规律,并基于UDF(userdefined function,用户自定义函数)编程技术和VOF(volume of fluid method,流体体积法)模型,分析了降尘装置混合出口处的雾粒轴向速度和风流进口处的风流轴向速度随水轴出口角度的变化规律。结果表明:随着水轴出口角度的增大,水流最大出口速度从63.19 m/s减小到24.97 m/s,水轴转速逐步增大到1786.4 r/min;雾粒最大轴向速度从39.178 m/s减小到10.637 m/s,后增大到12.854 m/s,最后减小到8.014 m/s,速度均匀性先增强后减弱;风流最大轴向速度从0.804 m/s增大到1.524 m/s,后减小到1.272 m/s,速度均匀性先基本不变后减弱;当水轴出口角度为45°时,降尘装置的雾化性能最佳。搭建了水轴转速和风流轴向速度测试平台,通过实验验证了仿真结果的正确性。将降尘装置进行了现场应用,结果表明,采用水动力旋转喷雾降尘装置后,转载机进料口区域总粉尘和呼吸性粉尘的降尘率有了明显提高,均达到了75%以上,其中工人作业处的呼吸性粉尘质量浓度降到6.31 mg/m^(3)。研究结果为创建安全、健康、绿色的煤矿生产环境提供了新思路。hydrodynamic rotary spray dust reduction device has the advantages of only hydrodynamic drive and good atomization effect,and has been widely used in coal mine underground working face.In order to realize safe,accurate and efficient dust reduction,its performance was analyzed systematically based on dynamic grid technology.The 3D model of the dust reduction device was established by DesignModeler software,and the influence rules of the water axis outlet angle on the outlet speed of water flow and the rotational speed of water axis were analyzed by using the dynamic grid technology.The programming technique of UDF(user-defined function)and the VOF(volume of fluid method)model were used to analyze the variation rules of the axial velocity of fog particles at the mixing outlet and the axial velocity of wind flow in the wind flow inlet with the water axis outlet angle.The results showed that with the increase of water axis outlet angle,the maximum outlet velocity of water flow decreased from 63.19 m/s to 24.97 m/s,and the rotation speed of water axis gradually increased to 1786.4 r/min;the maximum axial velocity of fog particles at mixing outlet decreased from 39.178 m/s to 10.637 m/s,then to 12.854 m/s,and finally to 8.014 m/s,the velocity uniformity increased firstly and then decreased;the maximum axial velocity of wind flow firstly increased from 0.804 m/s to 1.524 m/s and then decreased to 1.272 m/s,and the velocity uniformity was unchanged firstly and then decreased.When the water axis outlet angle was 45°,the atomization performance of the dust reduction device was the best.The test platform of water axis rotation speed and wind flow axial speed was set up,the correctness of simulation results was verified by experiments.The dust reduction device was applied in the field.The results showed that the reduction rates of total dust and respirable dust in the feed port area of the transfer machine were significantly increased after the adoption of the hydrodynamic rotary spray dust reduction device,both of which re

关 键 词：旋转喷雾 动网格 数值模拟 负压除尘 降尘效率 

分 类 号：TD714[矿业工程—矿井通风与安全]