综放面缩面期间防灭火技术研究与应用
发布时间：2019-04-04 18:22
【摘要】：为了解决某煤矿3304综放工作面缩面改造期间因采空区遗煤多、停采撤架时间长、漏风条件复杂而引起的采空区煤炭易于自燃的问题,分析了3304工作面缩面改造期间采空区遗煤易于自燃的原因,并提出了由注水、均压、注浆组成的综合防灭火技术体系。通过监测发现,采取上述措施后,回风隅角的CO浓度从停采初期的7.8×10-5下降到缩面完成时的1.0×10-5,回风流的CO浓度从5.8×10-5下降到0,有效地抑制了采空区遗煤自燃,保证了3304工作面缩面改造工作的顺利进行。
[Abstract]:In order to solve the problem of coal spontaneous combustion in goaf due to the large number of remaining coal in goaf, long time to stop mining and long withdrawal time and complicated air leakage condition, the coal in goaf is easy to self-ignite during the reconstruction of 3304 fully mechanized top coal caving face in a certain coal mine. This paper analyzes on the causes of spontaneous combustion of the remaining coal in goaf during the retrofit of face contraction of face 3304, and puts forward a comprehensive fire prevention and extinguishing technology system composed of water injection, pressure equalization and grouting. By monitoring, it is found that the CO concentration in the return air corner decreases from 7.8 脳 10 ~ 5 in the initial stage of stoppage to 1.0 脳 10 ~ 5 at the completion of the cut-off surface, and the CO concentration in the return air decreases from 5.8 脳 10 ~ 5 to 0. 8 脳 10 ~ 5 after the above measures are taken. The spontaneous combustion of coal remains in goaf is effectively restrained, and the reconstruction of face reduction in 3304 face is ensured.
【作者单位】： 神华乌海能源公司职工培训中心;
【分类号】：TD75
[Abstract]:In order to solve the problem of coal spontaneous combustion in goaf due to the large number of remaining coal in goaf, long time to stop mining and long withdrawal time and complicated air leakage condition, the coal in goaf is easy to self-ignite during the reconstruction of 3304 fully mechanized top coal caving face in a certain coal mine. This paper analyzes on the causes of spontaneous combustion of the remaining coal in goaf during the retrofit of face contraction of face 3304, and puts forward a comprehensive fire prevention and extinguishing technology system composed of water injection, pressure equalization and grouting. By monitoring, it is found that the CO concentration in the return air corner decreases from 7.8 脳 10 ~ 5 in the initial stage of stoppage to 1.0 脳 10 ~ 5 at the completion of the cut-off surface, and the CO concentration in the return air decreases from 5.8 脳 10 ~ 5 to 0. 8 脳 10 ~ 5 after the above measures are taken. The spontaneous combustion of coal remains in goaf is effectively restrained, and the reconstruction of face reduction in 3304 face is ensured.
【作者单位】： 神华乌海能源公司职工培训中心;
【分类号】：TD75
【参考文献】
相关期刊论文 前5条
1 高宗飞;林来彬;范向军;狄存绪;;特厚易自燃煤层综放面停采收作期间防灭火技术[J];煤炭工程;2012年07期
2 金永飞;郭军;邱吉龙;罗保明;;综放工作面停采撤架期间综合防灭火技术研究[J];煤炭科学技术;2014年02期
3 王步青;;综放面缩面调系统期间自然发火的防治[J];煤炭科技;2008年04期
4 王亚超;景兴鹏;张辛亥;肖e，
本文编号：2454053
本文链接：https://www.wllwen.com/kejilunwen/anquangongcheng/2454053.html
