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以同煤大唐塔山煤矿有限公司8105工作面为研究对象,对当前8105综放工作面瓦斯治理方案进行了分析和探讨,根据矿井通风实际情况,建立反映矿井通风实际的数值模型,然后采用Comsol Multiphysics软件对两进风巷(2105巷道和5105巷道)的进风量相同(方案一)和不相同(方案二)2种工况下的8105工作面通风以及瓦斯浓度进行了分析。由于方案二中2105巷比5105巷设计风量较大,伴随压差的影响,使得与5105巷以及与其相接的回采工作面风流呈现全断面强紊流状况,对矿井安全生产造成一定影响。另外,由于两顺槽端头压力不一样,造成一定的风压损失,造成一定的经济浪费。所以采用方案一的通风方式及设计风量。
Taking Datang Tashan Coal Mine Co., Ltd. 8105 face as the research object, the current 8105 fully mechanized top coal caving face gas treatment scheme is analyzed and discussed. According to the actual situation of mine ventilation, the actual numerical model of mine ventilation is established, and then Comsol Multiphysics software analyzes the ventilation and gas concentration of the 8105 face under the same two conditions (Option 1) and the same (Option 2) for both inlet airways (2105 and 5105). Because of the larger design air volume of 2105 lane in lane 2 than in lane 2 of lane 2, with the effect of pressure difference, the strong turbulent flow with full cross-section appears on the side of 5105 lane and its adjacent mining face, which will affect mine safety production to a certain extent. In addition, the pressure is not the same as the end of the two grooves, resulting in a certain loss of wind pressure, resulting in a certain degree of economic waste. Therefore, the use of a program of ventilation and design of wind.