With the increase of coal mining depth,under the dual interference of kilometer deep mines and large single wing mining layout,it is necessary to optimize the ventilation system of the underground working face to ensure that it has good ventilation capacity.Taking 37 and 39 mining areas of A Mine in Shanxi Province as an example,as the mining area gradually extended and became farther away,there were problems such as high ventilation resistance and excessive wind speed caused by the interference of the existing main ventilation fan performance and ventilation network system.Therefore,based on previous cases,the ventilation system was renovated from the aspects of fan selection and excavation of the west wing air return roadway.Through practical application,it can be concluded that the air volume in 37 and 39 mining areas is sufficient to effectively meet the needs of coal mining.
关键词
大埋深矿井/通风系统/系统改造
Key words
deep buried mine/ventilation system/system renovation
维普
万方数据