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在开拓新井时,往往是先掘单井筒,待掘到井底后再增加施工队、组与工作面数。由于单井筒构不成通风系统,若采用地面放局扇往井下压入式通风,随着巷道的延伸势必会出现通风能力不足。根据我处历年施工的实践,新井开拓应用局扇群(指多台局扇联合运转)解决施工中的通风问题,不仅简单易行,而且也较可靠。现将我处使用局扇群的情况及其分析意见介绍如下。一、局扇群的使用单井筒使用局扇群通风,是待井下形成回路后构筑密闭墙,将局扇群装在墙之内侧,而风筒通过密闭墙的预留孔接出,直至
When pioneering a new well, it is often the first step to dig a single wellbore. After excavating the well, the number of construction teams, groups and work surfaces should be increased. As the single well bore structure does not have a ventilation system, if the ground is used, the fan can be pressed into the well for downhole ventilation. As the extension of the roadway inevitably there will be insufficient ventilation capacity. According to the practice of our office in the past years of construction, the new wells to open up the application of fan group (referring to the multi-board fan operation) to solve the construction of ventilation problems, not only simple, but also more reliable. Now I am using the situation of the bureau sector and its analysis of views described below. One, the use of Council Fan Group single-well use of fan-sector ventilation is to be formed underground after the formation of a closed loop circuit, the fan will be installed inside the wall inside the fan, and the duct through the confined wall exit hole until