武山铜矿通风系统优化研究

Study on Optimization of Ventilation System in Wushan Copper Mine

通过现场调查和测定,并对测定数据进行统计与分析,发现武山铜矿通风系统存在南北矿带风流干扰严重、通风构筑物不够完善、风速合格率偏低等问题。为此,提出了2个优化方案,并采用Ventsim三维仿真系统建立了三维仿真模型,解算出总需风量,经过技术、经济比较和数值模拟分析,最终确定完善通风构筑物、选用辅扇调节、增加中段回风天井、采场中央预设顺路回风通道的优化方案。工程实践证明,通风效果良好,有效解决了通风系统存在的问题。

Through on-site investigation and measurement,as well as statistics and analysis of the measured data,it was found that the ventilation system in Wushan copper mine had some problems,such as serious air flow disturbance in the north-south mining belt,imperfect ventilation structure and low qualified rate of wind speed.Therefore,two optimization schemes were put forward,and Ventsim three-dimensional simulation system was used to establish a three-dimensional simulation model for calculating the total air demand.After technical and economic comparison as well as numerical simulation analysis,the optimization scheme was finally determined as improving ventilation structures,selecting auxiliary fan for adjustment,increasing mid-level return-air raise and presetting downstream return-air passage in the center of stope.Engineering practice proved that the ventilation effect was good and the problems existing in the ventilation system were effectively solved.