高山寒冷矿区通风系统的改进

酒钢镜铁山铁矿地和山寒冷山区，通风条件复杂，原设计的整体压入式大主扇通风系统没有正常运转。根据矿山具体条件，在新中段采用多级机站通风系统。本文着重介绍新系统的特点、多级机站的布置，并分析了矿山通风中存在的几个问题。

Improvement on Ventilation System of Mining Districtat High Mountain and Cold Climate Area

he ventilation condition of Jintieshan Iron Mine of Jiuquan Iron and Steel Company,which is located at high mountain and cold climate area,is very complicated. The integral forced ventilation system of large-sized main fan used in original design do not reach normal operation condition. According to the practical condition in this mine,the ventilation system of multiple fan stations is put forward at new level. In this paper,the characteristic of new ventilation system,the arrangement of multiple fan stations are presented emphatically,and the certain problems existed in mine ventilation systemare analysed.