摘要
矿井通风系统与井下各作业点相联合,对全矿井的通风安全状况具有全局性的影响,长期以来矿井通风系统优化是地下深部开采面临的重要难题。某大型地下超深部开采铜矿生产过程中存在矿体走向短、倾角大,多中段同时开采导致采区工作面分散,通风系统风路复杂的难题。基于此,利用Ventsim软件建立该矿井三维通风系统仿真模型,以矿井需风量为出发点,提出针对三、四、五采区的通风系统优化方案,模拟-300~-700 m深度内9个通风最不利中段同时开采情况,并进行通风系统网络解算。结果表明:矿井最不利通风条件下总风量为405.3 m^(3)/s,满足计算的矿井需风量395.5 m^(3)/s的要求。研究成果对矿山安全高效生产,提高矿山经济效益具有重要参考价值。
The Mine ventilation system,integrated with underground operating points,has a global impact on the ventilation safety of the entire mine.Optimizing the mine ventilation system has long been a significant challenge in deep underground mining.In a large underground ultra-deep mining copper mine,issues such as short ore body strikes,large dip angles,and dispersed working faces due to simultaneous multi-level mining have led to a complex ventilation system.The three-dimensional ventilation system simulation model of the mine was established by using Ventsim software.Based on the air demand of the mine,the optimization scheme of the ventilation system in the third,fourth and fifth mining areas is proposed.The simultaneous mining conditions of the nine most ventilation-challenged sections between-300 m and-700 m were simulated,and the ventilation system network was analyzed.The results show that the total air volume under the most unfavourable ventilation conditions of the mine is 405.3 m^(3)/s,which meets the calculated air requirement of 395.5 m^(3)/s for the mine.The research results have significant reference value for the safe and efficient production of the mine and for improving the economic benefits of the mine.
作者
李军
王海军
赵旭林
苗勇刚
朱坤磊
LI Jun;WANG Haijun;ZHAO Xulin;MIAO Yonggang;ZHU Kunlei(BGRIMM Technology Group,Beijing 100160,China)
出处
《矿冶》
CAS
2024年第3期356-361,共6页
Mining And Metallurgy
