JIANG Xiaolong , SUN Ming , CHANG Jianping , DONG Hongjuan
(Mining and Coal School , Inner Mongolia University of Science and Technology , Baotou 014010 , China)
Abstract : Spontaneous combustion in coal mines is the most common and influential type of mine fire , which seriously restricts the safe mining of coal mines in China , endangers the safety of workers , and causes environmental pollution and great waste of resources . Al- though the prevention and control technology of mine fire has made significant development , the situation of preventing and controlling coal spontaneous combustion in mines is still severe . The influencing factors of coal spontaneous combustion in different mines or min- ing areas are numerous and complex , and different fire extinguishing materials and flame retardant mechanisms are used. This paper summarizes the flame retardant mechanism of mine fire prevention and extinguishing materials such as grouting , inert gas , inhibitor , gel , foam , etc . , and indicates the research direction of the flame retardant mechanism of mine fire prevention and extinguishing materi- als , which provides a reference for the research of fire prevention and extinguishing materials for preventing and controlling spontaneous combustion in coal mines .
Key words : mine; coal spontaneous combustion; fire prevention and extinguishing materials; flame retardant mechanism