高海拔多中段金属矿通风方案优选

Optimization of Ventilation Schemes for Metal Mines at High Altitude and Multilevel

高海拔多中段矿山普遍存在受自然风压影响大、风流短路和作业区域风量不匹配等问题。以会东大梁铅锌矿井下通风系统为工程依托,根据矿山通风系统存在的问题,提出了3种通风系统优化方案。对3种方案的通风阻力、设备与运行费用和工程量进行了技术经济对比。得出利用各中段平硐及斜坡道进风、两翼回风的压抽混合式通风方案为最优。研究成果为矿山安全健康发展提供基础。

Multilevel mines at high altitude are generally affected by natural wind pressure,short-cir⁃cuited wind flow,and mismatched air volume in operating areas.Relying on the underground ventilation system of the Huidong Daliang lead-zinc mine,and according to the actual problems of the mine ventilation system,three kinds of ventilation system optimization schemes are proposed.The technical and economic comparisons of the ventilation resistance,equipment and operating costs and engineering quantities of the three schemes were carried out.It is concluded that the compressed-exhaust mixed ventilation scheme using the flat tunnels and ramps in each middle section to enter the air and the return air from the two wings is the best.The research results provide the foundation for the safe and healthy development of mines.