人工通风对深凹露天矿复环流的影响研究  

Study on the Influence of Artificial Ventilation on Recirculation Flow in a Deep Open-pit Mine

作　　者：张瑞明[1] ZHANG Ruiming(Shanxi Engineering Vocational College,Taiyuan, Shanxi 030009,China)

机构地区：[1]山西工程职业技术学院

出　　处：《矿业研究与开发》2019年第9期89-92,共4页Mining Research and Development

基　　金：国家重点研发计划项目(2018YFC0604605);国家自然科学基金项目(51274023)

摘　　要：为探究人工通风措施对深凹露天矿内复环流的影响变化规律,运用Fluent软件模拟采取人工通风措施前后深凹露天矿内复环流体积的变化。研究结果表明:深凹露天矿复环流体积减少量随通风风速、巷道尺寸、巷道个数的变化呈现先上升后下降的趋势。通过正交实验极差分析和方差分析,确定影响因素重要度排序为:通风风速v>巷道尺寸A>巷道个数N。综合考虑经济因素,确定实例矿山的人工通风最优方案是:通风风速为10m/s,巷道尺寸为6m^2,巷道个数为2,该条件下的复环流体积减少量可达37.6%。In order to investigate the influence of artificial ventilation measures on recirculation flow in a deep open-pit mine,the Fluent software was used to simulate the volume change of the recirculation flow in the deep open-pit mine before and after artificial ventilation.The results showed that,the volume reduction of the recirculation flow in the deep open-pit mine showed a trend of increasing first and then decreasing with the change of ventilation velocity,roadway size and number of roadways.The importance ranking of the influencing factors was determined by orthogonal test range analysis and variance analysis:ventilation velocity v>roadway size A >number of roadway N.Considering the economic factors,the optimal scheme for artificial ventilation was determined that the ventilation wind speed was 10 m/s,the roadway size was 6 m^2 and the number of roadway was 2.The volume reduction of recirculation flow under this condition was 37.6%.

关 键 词：深凹露天矿 人工通风 复环流 体积减少量 

分 类 号：TD72[矿业工程—矿井通风与安全]