焦家金矿焦家矿区通风系统优化研究

Optimization of Ventilation System in Jiaojia Mining Area of Jiaojia Gold Mine

摘要: 针对焦家矿区深部通风井巷工程滞后造成高温高湿问题，通过现场调研、核算总风量、机站优化设置、新增通风井巷工程等手段，确定了焦家矿区通风技术优化方案。研究结果表明：通过新掘4项通风工程，将新南风井−335 m回风机站风机更换为两台DK-12-№34轴流式风机，同时将−150 m北风井机站移至−570 m二分巷，运行DK45-6-№19轴流式风机，经Ventsim三维通风模拟软解算，系统总风量达到499.8 m³/s，能满足深部通风要求。研究成果为矿区深部系统优化奠定了基础。

Abstract: In response to the problem of high temperature and humidity caused by the lagging of deep ventilation shaft and roadway engineering in Jiaojia mining area, a ventilation technology optimization plan for Jiaojia Mining Area was determined through on-site research, calculation of total air volume, optimization of machine station settings, and addition of ventilation shaft and roadway engineering. The research results show that: through the excavation of four new ventilation projects, two DK-12-№34 axial flow fans were replaced for the return fan station at new ventilation shaft −335 m. At the same time, the −150 m north air shaft fan station was moved to the −570 m secondary lane, and DK45-6-№19 axial flow fans were operated. After Ventsim three-dimensional ventilation simulation software calculation, the total air flow of the system reached 499.8 m³/s, which can meet the requirements of deep ventilation. The research results lay a foundation for the optimization of deep mining system.