凡口铅锌矿深部通风系统测定与三维仿真优化研究

Study on measurement and 3D simulation optimization of deep ventilation system in Fankou Lead-Zinc Mine

为改善凡口铅锌矿深井通风条件,对深部通风系统进行了风量、风阻的测定与需风量的计算,深部通风系统总进风量为330.38 m^(3)/s,总回风量为345.95 m^(3)/s;矿井深部总风阻为0.0123 N·s^(2)/m^(8)。为解决其深部各中段及各工作面之间风量分配不合理、通风线路长且阻力大的问题,提出了4种优化方案并进行了三维仿真模拟。结果表明:深部通风系统的优化改造应选择“增加进、回风措施井+设置多级机站”的方案,既能够实现不同中段、采场风流的按需分配,也能够增加进入各个中段及分段采场的风量,适应未来生产需求。

In order to improve the deep ventilation conditions at Fankou Lead-Zinc Mine,the air volume and resistance were measured and the air volume demand was calculated.The total air inlet and return of the deep ventilation system were 330.38 m^(3)/s and 345.95 m^(3)/s,respectively.The total air resistance in the deep panel is 0.0123 N·s^(2)/m^(8).In order to solve the problems of unreasonable distribution of air volume,lengthy ventilation lines,and high resistance among deep levels and working faces,4 optimization schemes are proposed and simulated in 3D.The results show that the optimization and transformation of the deep ventilation system should choose the scheme of"adding air inlet and return shafts&setting multi-stage ventilators",which can not only realize on-demand air flow in different levels and stopes.It can also increase the air volume that enters each level and sublevel stope to meet future production needs.