煤矿井下综采工作面硫化氢气体防治技术研究

Study on control technology of hydrogen sulfide on underground fully-mechanized working face of coal mine

硫化氢是矿井主要有毒有害气体之一,该气体存在毒性强、对人体危害大、致人员伤亡浓度低等特性。该气体在煤体中赋存不均匀,局部存在异常区,从产生到消失时间短,在矿井采煤作业时,经常被忽略,井下作业人员对其危害性和防治措施往往处于未知状态,因此,易造成人员伤亡事故。针对以上现状,结合煤矿综采工作面硫化氢赋存规律,制定抽采、煤层注水、注碱性溶液等治理方案,并进行现场实际效果考察比对,最终确定切合实际的治理措施,以期为地质条件相似矿井提供借鉴。

Hydrogen sulfide is one of the main poisonous and harmful gases in mine, which has the characteristics of strong toxicity, great harm to human body and low concentration of casualties. Hydrogen sulfide is not evenly distributed in the coal body, and there are some abnormal areas in it. It is often neglected in the mining operation of coal mines.Underground workers often do not know their hazards and preventive measures, so it is easy to cause casualties.In view of the above present situation, combined with the law of hydrogen sulfide occurrence in fully mechanized mining face in coal mine.The authors of the paper drew up drainage, coal seam water injection and alkaline solution, and carried on the field actual effect inspection, and finally determined the practical treatment measures,which can provide reference for other coal mines with similar geological conditions.