深部开采矿井通风系统优化改造

Optimization and Reformation of Ventilation System of Deep Mining Shaft

为确保矿井生产安全,通过通风阻力测定确定高阻巷道分布范围,并提出以新掘底板回风巷、高阻巷道修整和扩刷等为核心的通风系统优化改造方案,后通过网络解算分析降阻方案的可行性。优化后的王庄西立井及北风井通风系统等积孔分别从0.98 m^(2),1.89 m^(2)提升至1.52 m^(2),2.77 m^(2),主要通风机月电费降低2.23×10^(5)元,降幅为29.7%,取得了显著的优化效果。

In order to ensure the safety of mine production,the distribution range of high-resistance roadways was determined through the measurement of ventilation resistance.This paper proposed a ventilation system optimization plan with the return air-ways floor with newly excavated,high-resistance roadway repair and expansion,etc.as the core,and then analyzed the feasibility of the resistance reduction program through the network calculating.The optimized mine orifice of the ventilation system of Wangzhuang west vertical shaft and north air shaft have been increased from 0.98 m^(2) and 1.89 m^(2) to 1.52 m^(2) and 2.77 m^(2) respec-tively,the monthly electric charge of the main fans has been reduced by 2.23×10^(5) yuan with a decrease of 29.7%,which has achieved significant optimization effect.