黄金矿山的通风系统改造问题探讨

讨论了自然风压的特性及在黄金矿山通风系统改造中的利用问题,认为黄金矿山通风系统在改造前,首先应该优化通风网络。优化通风网络可应用通路法。非用风通路中不在用风通路中出现的分支可视为短路分支,应从通风网络中去掉。包含两条及以上的用风分支的通路可视为污风串联通路,应去掉某些分支消除这些通路,如果为了消除污风串联通路而使网络退化为不连通网络时,则只能通过调整井下作业时间去掉某些用风分支来解决。

Discuss on Reformation of Ventilation System in Gold Mines

The noticeable problems that should be noticed appear in reforming the ventilation systems of gold mines, in which the natural wind pressure is higher, are discussed in this paper. It is considered that the natural ventilation must be fully utilized in reforming the ventilation systems of gold mines, so the gradual low- power multi -fan ventilation system should be adopted in these gold mines. Before the optimization of ventilation system, one should optimize the ventilation network. The optimization of ventilation network can be achieved by using path method. The branch in non - duty paths but not in duty paths can be regarded as air escape branch and should be removed from the network. The paths that include two or more duty branches can be regarded as polluted air series path and some branches should be removed from the network to eliminate such paths. If the network is broken into two or more parts when polluted air series paths are eliminated, some duty branch in such path should be turned to non - duty branch through adjusting plan of underground Work.