Research progress and prospects of CO2 fire prevention and extinguishing technology in mine goafs

Abstract

As coal mining continues to deepen, the issue of goaf fires has become increasingly prominent, posing a significant threat to mine safety and the ecological environment. Understanding carbon dioxide (CO₂) fire prevention and extinguishing technology is crucial for preventing and controlling goaf fires. This paper explores the mechanisms of CO₂ fire prevention and extinguishing, including inertization and asphyxiation, adsorption inhibition, cooling, and explosion suppression. Additionally, it analyzes the impact of CO₂ injection locations and volume on fire prevention and extinguishing effectiveness, and outlines the advantages of using CO₂ for fire prevention and extinguishing. Furthermore, the paper proposes future research directions, such as optimizing CO₂ injection parameters, utilizing the Internet of Things to achieve intelligent management of CO₂ fire prevention and extinguishing, and exploring the synergistic application of CO₂ fire prevention and extinguishing technology with other technologies. These efforts aim to drive innovation and development in CO₂ fire prevention and extinguishing technologies, providing more efficient and sustainable solutions for coal mine safety.