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Experiment Research on the Material Controlling Gas Explosion in Underground Coal Mine

Author: ZhangHui
Tutor: XuJingCai；ChenXiaoKun
School: Xi'an University of Science and Technology
Course: Safety Technology and Engineering
Keywords: Gas explosion Controlled Blasting Material Flame propagation
CLC: TD712.7
Type: Master's thesis
Year: 2005
Downloads: 277
Quote: 7
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Abstract


Worsening China coal mine gas explosion severely threaten the lives and safety of the underground staff , restricting the development of the mine production , a heavy burden to the coal enterprises . Gas explosion accidents occur frequently , but at home and abroad have not a technology can effectively control the gas mixture of the three elements have the coal mine gas explosion . So find better control explosive materials combined with new technology to curb gas explosion has important significance for the prevention of disasters . Build their own gas explosion experiment station on the basis of using high-speed photography method , initial gas explosion flame propagation characteristics , inert nano powder and carbon dioxide inert gas Controlled Explosion effect of the gas explosion . The experimental results on the one hand , in theory, to verify the feasibility of gas explosion experimental pipeline , on the other hand inspection control explosive performance of the selected material and controlled blasting effect . Inert nano Dust in a certain extent can extend gas explosion induction period , slowing the explosion flame propagation speed and other effects ; carbon dioxide inert gas can be effectively controlled gas explosion , and a preliminary analysis of the mechanism of carbon dioxide Controlled Explosion . The results of this experiment show that in the case of normal temperature and pressure , when the inert gas of carbon dioxide concentration is over 21% , the conditions are satisfied , even if the gas explosion three elements explosive mixed gas is still go explosive . Gas explosion experiment station structures , debugging completion of inert gas and carbon dioxide control gas explosion experiment 's success lay a foundation for further study of the coal mine gas control blasting technology and control explosive materials .

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CLC: > Industrial Technology > Mining Engineering > Mine safety and labor protection > Mine atmosphere > Mine Gas > Prevention and treatment of gas explosion
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