新庄煤矿井下出现不明雾气原因分析

Cause Analysis on Undefined Fog in Xinzhuang Coal Mine

根据新庄煤矿 1110 1进风巷出现不明雾气 ,笔者认为 ,研究和分析该雾气的成因及是否有毒 ,对煤矿安全生产和矿工的生命安全与健康至关重要。通过现场气象测定和实验室模拟试验 ,确定了雾气成因 ,经雾气发生地点采样分析 ,空气中未发现有毒气体。经实测分析和研究表明 ,进风巷雾气成因是 :当突然打开 1110 1工作面回风巷道中的调节风门时 ,巷道气压突然降低 ,空气膨胀 ,温度有所下降 ,使得空气中的水分凝结 ,从而形成雾气。通过实验室模拟实验再现了这一过程 。

Undefined fog occurred in the 11101 inlet gallery of Xinzhuang coal mine. It is important to make clear the cause of formation and toxicity of the fog, which was confirmed by determining local weather parameters and simulation experiment. The results of gas analysis showed that the fog was not toxic. The fog was formed in the way as follows. When the adjusting air door in the gallery was opened suddenly, the air pressure dropped quickly and the air expanded and its temperature dropped simultaneously. The moisture in air would condense to form fog. This phenomenon has been confirmed in laboratory by simulation experiment.