Intelligent coordinated control technology of dust-gas in underground excavation face in highly gas mine, China
- 1School of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, China (liqingwei90@126.com)
- 2Shaanxi Key Laboratory of Prevention and Control of Coal Fire, Xi’an University of Science and Technology, Xi’an, China (liqingwei90@126.com)
As a chronic hazard, coal mine dust is widely distributed in mines around the world, especially in China, and the number of cases of pneumoconiosis caused by coal mine dust remains high every year. In highly gas mines, excavation work is at risk of exceeding gas concentrations, which could cause gas-coal explosions under certain conditions. The underground excavation face of the high gas mine urgently needs to solve the gas overrun problem caused by dust prevention and control work. In this work, gas-coal dust monitoring and early warning technology was used, to establish a treatment concept combining intelligent wind control and dust removal and gas overrun prevention and control. Via numerical simulation with FLUENT, to determine the air volume ratio of gas over limit prevention and control, the optimal dust removal air volume ratio, and applied in the field. The results indicated that the intelligent wind control technology had a excellent prevention effect on the problem of dust-gas coexistence.
How to cite: Cao, Y., Xiao, Y., Wang, Z., and Li, Q.: Intelligent coordinated control technology of dust-gas in underground excavation face in highly gas mine, China, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-10406, https://doi.org/10.5194/egusphere-egu23-10406, 2023.
