Technology research on injecting limewater into coal bed to prevent hydrogen sulfide
The problem of the over-limits of hydrogen sulfide gas in the 51520(middle) working face in Taiyuan Dongshan coal mine threats operating personnel safety and leads production to stop. Based on the characteristics of hydrogen sulfide gas which is easy to dissolve in the water and to make a chemical reac tion with limewater, applying the method of injecting limewater in the working face experiment may prevent the problem of the over-limits of hydrogen sulfide gas and control it. Through analyzing the injection effec tive radius and the increasing of moisture content, ascertain fundamental parameters of reasonable arrange ment of injecting hole, spacing and pressure, and inspect the moisture content of coal, the hydrogen sul fide gas density in air flow and the change of drilling depth in working face after injection, studied the technology in injecting limewater into coal bed to prevent hydrogen sulfide gas over-limit in working face. The practice has showed that the method of injecting limewater into coal can increase coal moisture content to dissolve the problem of the over-limits of hydrogen sulfide gas effectively by making a chemical reaction with limewater. Thereby, it can reduce the emission of hydrogen sulfide gas and will have good effects on preventing and controlling the over-limits of hydrogen sulfide gas in the working face.
coal bed injecting limewater injecting parameters preventing and controlling the gas of hy sulfide
Yanpeng Xu Zhaofeng Wang Jifu Ma
Safty Science and Engineering Institute Henan Polytechnic University, Jiaozuo 454003,China Safty Science and Engineering Institute Henan Polytechnic University,Jiaozuo 454003,China Dongshan Coal Mine, Taiyuan 030001,China
国际会议
重庆
英文
321-325
2009-05-20（万方平台首次上网日期，不代表论文的发表时间）