Optimization And Study Of Ventilation Pattern In The High Gas And Large Mining Height Working Face

Based on the broken gas emission rule in working face of large mining height, Research in large mining height are broken working reasonable ventilation mode in this thesis, which can effectively solve the gas safety mining working face in major technical problems, guarantee high extraction rate,provide technical support for gas mining realize high production and efficiency.First of all, a lot of field survey, summed up the directly influence the effect of working face ventilation 7 indexes, set up evaluation index system of mine gas face ventilation effect model and subordinate function of these indicators. Then,using the numerical simulation software fluent to face different ventilation, to simulate the way get 7 indexes corresponding membership degree, combining with the evaluation system to evaluate and compare each other to get the optimal ventilation mode. Finally, the optimal ventilation way industrial test,using the evaluation system of examination of its rationality. The subject of the study can not only enrich mine ventilation and gas disaster management theory,the research results of the gas working face safe and efficient mining also has the important practical significance.