摘要
为了彻底解决炮掘巷道内放炮后发生的炮烟熏人事故,确定放炮后爆破人员再次进入工作面作业的安全时间。针对西山煤电屯兰矿一段正在掘进的巷道内CO超限规律进行了较为详细的试验研究。通过改变几组试验条件,得到放炮后巷道内几个观测点处的CO浓度走时规律以及CO浓度超限的时间分布规律,并在此基础上建立放炮后爆破人员再次进入工作面安全时间的计算模型,定性给出了巷道内降低CO浓度的几点有效措施,对煤矿安全生产均起到了至关重要的作用。
In order to confirm safety time of personnel entering driving face after blasting for avoiding poisoning disaster,A test of CO overrun rule was made in a driving roadway of Tunlan Colliery. By changing test conditions,the CO concentration variation and overrun distribution rule was obtained. On the basis of this,a calculation model of safety time of personnel entering driving face was set up. Countermeasures for reducing CO concentration in roadway were put forward which had important significance for safety mining.
出处
《煤矿开采》
北大核心
2015年第6期119-122,共4页
Coal Mining Technology
基金
中央高校基本科研业务基金资助项目(AQ2013A01)
华北科技学院煤矿火灾防治新材料及应用技术研究创新团队项目(3142015021)
关键词
超限规律
控制对策
安全时间
事故预防
overrun rule
control countermeasure
safety time
disaster prevention
