银山铅锌矿北山深部通风探讨

Discussion on Air ing of Beishan Deep of Yinshan Mine

介绍和分析了北山区通风现状，为探讨其深部通风最优效果，拟定了二个改造方案进行技术经济比较、选择。

This paper introduces and analyses beishan current airing,propose two rebuilt plan,and compare economics and technology,to discuss the best a iring effect