矿井瓦斯事故注氮灭火诱发再次爆炸的研究
曹运江¹，赵彦名¹，蔡昌和²，黄祥宽³，曹建辉³，吴兴建³，董太华³，罗福义⁴
（1. 湖南科技大学煤炭资源清洁利用与矿山环境保护湖南省重点实验室，湖南 湘潭 411201；2. 湖南联新煤矿，湖南 新化
417000；3. 四川广旺能源发展（集团）有限责任公司，四川 广元 628017；4. 贵州省煤田地质局159 队，贵州 盘州 561600）
摘要： 多年来矿井瓦斯事故防治过程中只注重CH₄气体，导致瓦斯防治理论的片面性和局限性。注氮灭火是常规公
认的矿井灭火方法，在不合适的条件下直接盲目地注氮灭火，非但不能灭火，反而会诱发二次瓦斯爆炸或加剧爆炸事故
势态。因此，为完善对矿井瓦斯爆炸防治方面的理论认知，从理论上分析了N 元素的客观作用特性，诠释了N 元素在矿
井瓦斯事故中的真实作用，指出在防治瓦斯事故中CH₄气体的同时，要特别重视N 在瓦斯爆炸事故中的作用。
关键词： 瓦斯事故；N 元素；瓦斯防治；火药
中图分类号： TD712     文献标识码： A     文章编号： 2095-0802-(2021)07-0119-03
Study on Re-explosion Induced by Nitrogen Injection in Mine Gas Accidents
CAO Yunjiang¹, ZHAO Yanming¹, CAI Changhe², HUANG Xiangkuan³, CAO Jianhui³, WU Xingjian³,
DONG Taihua³, LUO Fuyi⁴
(1. Hunan Province Key Laboratory of Coal Resources Clean-utilization and Mine Environment Protection, Hunan University of
Science and Technology, Xiangtan 411201, Hunan, China; 2. Lianxin Coal Mine of Hunan, Xinhua 417000, Hunan, China;
3. Guangwang Energy Development (Group) Co., Ltd. of Sichuan, Guangyuan 628017, Sichuan, China; 4. No.159 Team,
Guizhou Coal Geological Bureau, Panzhou 561600, Guizhou, China)
Abstract: For many years, only CH₄ has been paid attention to in the process of mine gas accident prevention and control, which
leads to the one-sidedness and limitation of gas prevention and control theory. Nitrogen injection fire extinguishing is a well-known
method of mine fire-fighting. Direct and blind injection of nitrogen under unsuitable conditions will not only cause fail in firefighting,
but also induce secondary gas explosion or aggravate the situation of explosion accidents. In view of this situation, in order
to improve the theoretical cognition of mine gas explosion prevention and control, this paper analyzed the objective function
characteristics of N element in theory, interpreted the real function of N element in mine gas accidents, and put forward that while
preventing and controlling CH₄ gas in gas accidents, special attention should be paid to the role of N in gas explosion accidents.

Key words: gas accident; N element; gas prevention and control; gunpowder