The Gas Emission Rule And Control In Goaf At 50107 Working Face Of He Caogou Coal Mine

Gas emission is one of the important safety factors influencing the normal production of coal mine, the working face gas emission generally includes three aspects, the coal tile gushed out, gas emission of coal wall, goaf gas emission. Goaf gas emission of working face gas emission ratio is larger, so the governance goaf gas emission is the key of the governance working face gas. Because of the law of goaf gas occurrence regularity and vague, governance goaf gas emission has a lot of problems. This article through to the grass mine roadway.the phenomenon of fully mechanized working face 50107, calculate the goaf gas emission accounted for 54% of fully mechanized working face gas emission- 58%, governance goaf gas emission is the key of the governance of this working face gas overrun. Measurement of the distribution of goaf gas internal research, and the measured ground atmospheric pressure was studied in 50107 fully mechanized coal face gas emission, the influence of the 50107 working face is obtained the basic laws of gas emission. On the basis of the analysis of the mathematical model of gas migration, and through the Fluent software to simulate the migration of goaf. Buried pipes based on the simulation results made in return air suitability goaf governance, knot and 50107 face the actual situation of the scene made the corresponding drainage and drainage system, through the extraction effect of inspection and the Fluent software simulation situation analysis, reasonable extraction technology parameters is given. Ensure the grasses mine 50107 working face of normal production, and in the governance grass ditch when other goaf of fully mechanized working face gas emission can also draw lessons from.