采煤工作面囊袋封堵漏风技术研究

Study on air leakage sealing technology with bag in coal face

采空区域中出现大量漏风是造成矿区煤自燃现象的主要原因之一。为了有效减少该现象的出现,我国提出囊袋封堵漏风技术并实际运用到现场[1]。结果表明,在对工作面进行囊袋封堵且封堵效果较好的现场,采空区氧气浓度大幅降低,从而提高回采工作面的安全系数,确保后续工作顺利进行。将对采煤工作面囊袋封堵技术进行研究。

A large number of air leakage in the goaf is one of the main causes of coal spontaneous combustion in the mining area.In order to effectively reduce the occurrence of this phenomenon,the bag sealing technology is proposed in China and applied to the field.The results show that the oxygen concentration in the goaf is greatly reduced when the working face is sealed by bag and the sealing effect is good,so as to improve the safety factor of the working face and ensure the follow-up work smoothly.The sealing technology of bag in working face will be studied.