基于Q-H平衡图的小青矿通风系统分析

Analysis of Xiaoqing Mine's ventilation system based on its Q-H equilibrium graph

为了更好的管理小青的通风系统,保障矿井的安全生产。采用小青矿通风系统的Q-H平衡图,结合等积孔,分析了小青矿的通风系统。分析结果表明:小青矿的通风系统存在问题的主要症结为回风区阻力偏大,其中东翼的回风区阻力为1313.12 Pa,南翼回风阻力为911.43 Pa,这也导致了两翼的等积孔偏小,东翼的等积孔为1.56 m2,南翼的等积孔是1.85 m2,这大大的限制了小青矿的通风系统的发展潜力。根据小青矿的通风系统分析,提出了相应的改造方案,对小青的后续通风系统发展具有指导意义。

To manage Xiaoqing Mine＇s ventilation system efficiently and ensure the safe mining, Xiaoqing Mine＇s ventilation system is analyzed on the basis of its Q-H equilibrium graph and its equal area hole. The anaylsis results show that the problem of Xiaoqing Mine＇s ventilation system has high resistance in air-return area. The air-return area＇s resistance of east subarea is 1313.12 Pa; the air-return area＇s resistance of south subarea is 911.43 Pa. High resistance in air-return area leads to the small equal area hole of the ventilation system, the east subarea＇s equal area hole is 1.56m^2; the south subarea＇s equal area hole is 1.85m^2. The ventilation system＇s problem limits the potential of ventilation. The alteration project for Xiaoqing Mine＇s ventilation system is presented on the basis of the analysis of the ventilation system, which has guiding significance for Xiaoqing Mine＇s ventilation system＇s development.