综掘面附壁风筒的优化设计与应用  

Optimization Design and Application of Wall-attached Air Duct in Fully-mechanized Excavation Face

作　　者：凌峰涛 杨俊磊 LING Feng-tao;YANG Jun-lei(Shenmu Hongliulin Mining Co.,Ltd.,Shaanxi Coal Industry Group,Shenmu 719316,China;Chongqing Research Institute,China Coal Technology and Engineering Group,Chongqing 400037,China)

机构地区：[1]陕煤集团神木红柳林矿业有限公司,陕西神木719316 [2]中煤科工集团重庆研究院有限公司,重庆400037

出　　处：《煤炭技术》2021年第3期124-127,共4页Coal Technology

基　　金：国家重点研发计划项目(2017YFC0805200)。

摘　　要：为提高综掘面附壁风筒分风控尘的效果,采用文献研究法,分析得出影响附壁风筒的设计因素,并据此进行了优化设计。采用数值模拟与现场实测的方法,对优化设计的合理性进行了验证分析。数值模拟表明:轴径向出风比为1∶3、距工作面15 m时,优化后的附壁风筒可形成厚度为1.9 m的控尘风幕,司机位置粉尘浓度从1170 mg/m^(3)降低到125 mg/m^(3)。现场应用表明:应用优化后的附壁风筒,司机处总尘、呼尘平均降尘效率分别提高了24.7%、26.9%,工作环境显著改善。In order to improve the effect of forced ventilation diversion to control and reduce dust of the wall-attached air duct in comprehensive excavation face,the factors affecting the design of the wall-attached air duct were analyzed by using the literature research method,and the wall-attached air duct was optimized according to the literature research results and site conditions.The rationality of the optimal design is verified by numerical simulation and field measurement.Numerical simulation shows that the ratio of axial and radial outgoing air volume is 1:3 and 15 m from the working face,the optimized wall-attached air duct can form a dust control air curtain with a thickness of 1.9 m,and the dust concentration at the driver's position decreases from 1170 mg/m^(3) to 125 mg/m^(3).The field application shows that the average dust removal efficiency of total dust and respirable dust at the driver's place has been increased by 24.7%and 26.9%,respectively,and the working environment has been significantly improved.

关 键 词：综掘工作面 附壁风筒 优化设计 数值模拟 

分 类 号：TD714[矿业工程—矿井通风与安全]