煤矿回采工作面硫化氢综合治理方法及效果  

Comprehensive treatment method and effect of hydrogen sulfide in coal mining face

作　　者：杨宏伟 高宏 YANG Hongwei;GAO Hang(Shenyang Research Institute,China Coal Technology and Engineering Group,Shenyang 110016,China;State Key Lab of Coal Mine Safety Technology,Fushun 113122,China)

机构地区：[1]煤科集团沈阳研究院有限公司,辽宁沈阳110016 [2]煤矿安全技术国家重点实验室,辽宁抚顺113122

出　　处：《煤炭科学技术》2018年第9期170-175,共6页Coal Science and Technology

基　　金："十二五"国家科技支撑计划资助项目(2012BAK04B05)

摘　　要：针对某矿多构造地质条件下回采工作面的硫化氢治理问题,采用现场探头监测,人工便携仪检测,实时监控硫化氢浓度变化,通过选取工作面煤样在现场及实验室测定硫化氢含量,利用等值线软件绘制某矿硫化氢含量赋存等值线图,研究了工作面硫化氢浓度分布规律。并有针对性地采用了分阶段的治理方案,即工作面巷道落煤前长钻孔预注碱液和采面煤壁"钻墙"注碱液消除工作面煤层硫化氢,落煤中采用采煤机喷洒碱液以及落煤后采用风帘引排、支架水幕吸收措施治理硫化氢。采用了落煤前、落煤中、落煤后的综合治理措施,结果表明:综合治理措施在不同程度上降低了硫化氢的浓度,整体治理效果显著,从而保障了工作面矿工的人身安全和工作面的安全高效回采。According to the hydrogen sulfide control problem of the coal mining face under the multi structural geological condition in a coal mine,a site probe monitoring and the miner＇s portable detector monitoring were applied to real time monitor the variation of the hydrogen sulfide concentration. With the coal samples selected from the coal mining face,the hydrogen sulfide content was conducted at the mine site and the indoor lab. An isoline software was applied to draw the deposition isoline map of the hydrogen sulfide content in a coal mine and the distribution law of the hydrogen sulfide content in the coal mining face was studied. At the same time,the stage control plan was adopted. Thus,before the coal cutting operation at the gateway of the coal mining face,long borehole alkaline liquid pre-injection and the alkaline liquid injections in the drilling wall of the coal wall in the coal mining face were applied to eliminate the hydrogen sulfide in the seam of the coal mining face. During the coal cutting,alkaline liquid spraying from the coal shearer as well as the air curtain to guide the ventilation after the coal cutting and the powered support water curtain absorption measures were applied to control the hydrogen sulfide.The comprehensive control measures were conducted before the coal cutting,during the cutting and after the coal cutting. The control results showed that the comprehensive control measures could reduce the concentration of the hydrogen sulfide in a deferent degree and the overall control effect was obvious. Thus the coal miners in the coal mining face and the safety and high efficient coal mining of the coal mining face could be ensured.

关 键 词：硫化氢治理 长钻孔注碱液 钻墙 采煤机喷雾 风帘引排 

分 类 号：TD711[矿业工程—矿井通风与安全]