Review of intelligent monitoring and extinguishing technology of electrical fire in coal mine

According to the characteristics of underground electrical fire in coal mine, this paper analyzes the causes of underground electrical fire in coal mine, summarizes the research status of underground electrical fire intelligent monitoring and fire extinguishing technology in coal mine from the aspects of substation electrical monitoring system, electrical intelligent fire inspection, gas fire extinguishing system, water mist fire extinguishing system and new microcapsule fire extinguishing technology, and puts forward the research direction of underground electrical fire intelligent monitoring and fire extinguishing technology in coal mine in the future.