大气压变化影响回风隅角氧气浓度异常变化的原因分析及防治技术

Reasons Brief Analysis of Effect of Change in Atmospheric Pressure on Change in Abnormal Oxygen Concentration in Reeturn Air Corner and Preventing Techniques

根据大气压变化规律,总结了大气压变化引起的采空区"呼吸"现象及其规律。结合补连塔煤矿22306工作面实际情况,全面分析了大气压变化对工作面回风隅角氧气浓度异常变化的影响,重点阐述了工作面回风隅角氧气浓度不足的解决措施,为工作面安全高效生产提供了有效保障。

According to laws of change in atmospheric pressure,summarized phenomena and law of the goaf breathe caused by changing in atmospheric pressure.Combined ctual conditions of 22306 coal face in bulianta coal,analyzed the effect of change in atmospheric pressure on the change in abnormal oxygen concentration,described the measures to solve deficiencies of oxygen concentration in reeturn air corner,provided effective guarantee of safety and efficient production in coal face.