全岩综掘工作面抽出式通风除尘系统的设计与应用  

Design and application of drawout ventilation and dust removal system for fully rock comprehensive excavation working face

作　　者：杨俊磊 Yang Junlei(China Coal Technology & Engineering Group Chongqing Research Institute, Chongqing 400037, China)

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400037

出　　处：《黑龙江科技大学学报》2020年第6期614-618,共5页Journal of Heilongjiang University of Science And Technology

基　　金：国家重点研发计划项目(2017YFC0805200)。

摘　　要：针对全岩综掘工作面粉尘污染严重的问题,以红柳林煤矿3-1煤辅运巷全岩段为研究对象,建立工作面物理模型,利用数值模拟方法,对比分析影响抽出式通风除尘效果的风量、风筒直径、进风口与工作面距离3个参数,得出了最佳的系统设计参数,并进行现场验证。结果表明,采用最佳设计参数的抽出式通风系统,司机位置总粉尘、呼吸性粉尘质量浓度可分别控制在15.3、8.9 mg/m3以下,与压入式通风相比,降尘效率分别提升到98.7%、98.5%以上。This paper seeks to address notorious dust pollution in full rock comprehensive excavation working face by taking the whole rock section of 3-1 coal auxiliary transportation lane of Hongliulin Coal Mine as the research object.The study involves developing the physical model of the working face and using the numerical simulation method to compare and analyze the three parameters affecting the effect of extraction ventilation and dust removal:the air volume,the diameter of the air cylinder,the distance between the suction port and the working surface;producing the optimal system design parameters and performing on-site verification.The results show that the extraction ventilation system featuring optimum design parameters allows the mass concentration of the total dust and respirable dust in the driver’s position to be controlled below 15.3 and 8.9 mg/m3,respectively,raising the dust removal efficiency to 98.7%and 98.5%,respectively,compared with the press-in ventilation.

关 键 词：全岩综掘工作面 抽出式通风 除尘效果 数值模拟 

分 类 号：TD714[矿业工程—矿井通风与安全]