煤矿安全2019，Vol.50Issue(10)：18-21,4.DOI:10.13347/j.cnki.mkaq.2019.10.005
煤矿密闭墙抗暴冲击压力的数值模拟及实验分析
Numerical Simulation and Experimental Analysis of Anti-explosion Impact Pressure of Closed Wall in Coal Mine
刘凤翔1
作者信息
- 1. 阳泉煤业集团有限责任公司,山西 阳泉 045000
- 折叠
摘要
Abstract
The explosion-proof wall of coal mine is an important facility to ensure the safety of goaf. In order to ensure the safe production of mine and provide scientific basis for the design of closed wall, this paper takes the explosion-proof wall of a mine in Shanxi Province as the research object and carries out the ball explosion test device. The closed anti-explosion impact pressure experiment is to obtain the maximum theoretical pressure in the explosion chamber. Based on the numerical simulation analysis of the gas explosion impact pressure by Fluent software, the maximum impact pressure of the gas dust explosion on the closed wall is obtained to verify its safety. The results show that the pressures measured by the explosion experiment and numerical simulation are 1.04 MPa and 0.7 MPa, respectively, which are far less than 5.3 MPa in the design of the closed wall of the mine, and the safety factor is 5.1.关键词
瓦斯爆炸/冲击压力/密闭墙/数值模拟/抗暴压力实验Key words
gas explosion/impact pressure/closed wall/numerical simulation/anti-explosion impact pressure experiment分类
矿业与冶金引用本文复制引用
刘凤翔..煤矿密闭墙抗暴冲击压力的数值模拟及实验分析[J].煤矿安全,2019,50(10):18-21,4.
