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为了分析杨柳煤业10416工作面通风系统调整以后,风量增大而工作面回风巷瓦斯浓度下降不大、风排瓦斯量增大的原因,分析了通风系统调整以来通风设施及采掘的变化情况及其对工作面风排瓦斯量及10414工作面采空区漏风的影响。通过分析认为影响因素有:通风系统调整引起风量和风阻的变化;临时通风设施的影响;邻近的10412工作面回风巷局部通风机的影响;采掘条件变化的影响等,其中通风系统调整及10412工作面回风巷局部通风机是主要原因。
In order to analyze the reasons for the increase of air volume and the reduction of gas concentration in return airway of working face after the adjustment of ventilation system in Yangliu Coal Industry 10416 Face, the change of ventilation facilities and mining since adjustment of ventilation system was analyzed And its influence on the amount of air discharged by the working face and the air leakage in the gob of 10414 working face. According to the analysis, the influencing factors are as follows: the change of air volume and air resistance due to the adjustment of ventilation system; the influence of temporary ventilation facilities; the influence of the local ventilator on the return air passage near the 10412 working face; the influence of the change of mining conditions, among which ventilation system adjustment and 10412 Face to return airway local fan is the main reason.