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SUN Yong-liang, WANG Jun. Analysis of Methane Distribution Laws Before and After Nitrogen Injection in Zhujiadian No.2 Pit Goaf[J]. Safety in Coal Mines, 2012, 43(S1): 145-147.
Citation: SUN Yong-liang, WANG Jun. Analysis of Methane Distribution Laws Before and After Nitrogen Injection in Zhujiadian No.2 Pit Goaf[J]. Safety in Coal Mines, 2012, 43(S1): 145-147.

Analysis of Methane Distribution Laws Before and After Nitrogen Injection in Zhujiadian No.2 Pit Goaf

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  • Published Date: October 14, 2012
  • Through the monitoring of gas concentrations in 4405 working face goaf, the paper analyzes the distribution law of gas concentration before and after nitrogen injection, and describes the division of “three zones” before and after nitrogen injection, and obtains safety area before nitrogen injection, eliminate the explosive region, which ensures the safety production.
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