Optimized study on location to measure average air velocity with air velocitysensor in wind measuring station of underground mine

In order to have an optimal layout location to measure an average air velocity in a mine roadway with the wind air velocity sensor in the wind measuring station of an underground mine, based on the wind measuring station in a -175 m level and an air income crosscut of Baiping Underground Mine, Zhengzhou Coal Group as the study object, according to the measured ventilation parameters of the wind measuring station in the mine roadway, a CFD calculation model of the mine roadway air velocity field was established in the wind measuring station. In comparison with the site measured results and the simulation results, the reliability of the simulation calculation by the CFD model of the mine roadway air velocity field in the wind measuring station was verified. The CFD model of the mine roadway air velocity field in the wind measuring station was applied to the quantitative simulation analysis on the mine roadway wind measuring station with the personnel of the station under the condition of the extreme location. The study results showed that the optimum layout area of the air velocity sensor would be a zone distance of 3.63 m, 3.64 m from the mine roadway floor distance to the central vertical line of the mine roadway in the wind measuring station. The air velocity sensor set up within the area could ensure the personnel in the area near the wind measuring station have the wind measuring accuracy of the air velocity sensor in the wind measuring station and they would provide the science guidance and proposals on the accurate wind measuring work in the mine roadway.