煤矿安全2017，Vol.48Issue(7)：169-172,4.DOI:10.13347/j.cnki.mkaq.2017.07.046
上隅角不同插管深度瓦斯抽采效果研究
Research on Gas Drainage Effect with Different Depth of Cannula in Upper Corner
于宝种1
作者信息
- 1. 中煤科工集团重庆研究院有限公司,重庆454003
- 折叠
摘要
Abstract
In order to study the effect of different depth of cannula in upper corner on gas drainage,FLUENT is used to simulate the gas distribution of working face and goaf without gas drainage and under the condition of 1 m,3 m,5 m cannula depth at the background of 104 working face in Dangjiahe Coal Mine.Numerical simulation results show that the deeper of the cannula is,the lower gas concentration of the upper corner is.But the gas drainage of cannula can hardly influence the gas distribution of the other area except for the upper corner.Apply the research results into practice,measured data show that gas concentration of the upper corner of 104 working face is lower than 0.7％.Study shows that gas drainage of cannula can extract gas of upper corner effectively,the gas concentration of upper corner is effectively controlled at the same time.关键词
上隅角/插管深度/瓦斯浓度/瓦斯抽采/数值模拟Key words
upper corner/cannula depth/gas concentration/gas drainage/numerical simulation分类
矿业与冶金引用本文复制引用
于宝种..上隅角不同插管深度瓦斯抽采效果研究[J].煤矿安全,2017,48(7):169-172,4.
