矿井空气幕隔断巷道风流影响因素分析及实验  

Influencing factors of air curtain in cutting off roadway airflow

作　　者：蒋仲安[1] 罗晔[1] 牛伟[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083

出　　处：《采矿与安全工程学报》2013年第1期149-153,共5页Journal of Mining & Safety Engineering

基　　金：国家自然科学基金项目(51274024)

摘　　要：针对目前矿用空气幕隔断巷道风流的特点和结构设计的要求,通过对单机循环型空气幕流动模型理论分析得到空气幕控制风流的主要影响因素。进一步运用相似原理,建立空气幕隔断巷道风流实验的模型,通过实验得出该巷道空气幕的最优角度为30°和最佳供风器出口宽度为8 cm。最后,利用FLUENT进行数值模拟计算,来验证实验结果的正确性。本研究结果对矿用空气幕隔断巷道风流的结构设计具有重要的理论指导作用。In this paper, in view of the characteristics of mine air curtain in cutting off roadway airflow and the requirement of structural design, the main influencing factors of air curtain in controlling airflow were obtained by theoretical analysis on the flow model of single-machine recycling-type air curtain. Furthermore, the experimental model of air curtain to cut off roadway airflow was established by using similar principles. The experiment results show that the optimum angle of air curtain and optimum width of air supply outlet in the roadway are 30° and 8 cm, respectively. Finally, numerical simulation by FLUENT was conducted to verify the correctness of experiment results. The results can provide reliable theoretical guide to the structural design of mine air curtain in cutting off roadway airflow.

关 键 词：空气幕 隔断风流 相似实验 数值模拟 

分 类 号：TD726[矿业工程—矿井通风与安全]