西石门铁矿通风系统改造

西石门铁矿北区回风斜井井筒坍塌，中区部分通风巷道被破坏，南区40 m至80 m中段原有的通风巷道全部被破坏，使得各采区通风效果逐渐变差。井下通风不畅，炮烟难以及时有效排出，威胁着工人的生命健康，严重影响矿山的安全生产。在科学测量铁矿现有通风系统的井下风压、风速、温度、湿度及其巷道参数的基础上，对铁矿通风现状进行了具体分析研究，绘制了通风系统图和通风网络图，进行通风参数的计算，确定出通风改造方案。改造方案立足于西石门铁矿目前的采矿生产和巷道布置的实际条件，同时充分考虑了深部开拓的规划，便于深部通风方案与现通风方案的衔接，涉及巷道布置、通风系统、通风设施及设备、开采技术条件、开拓开采方法等现状和矿井总体规划、开拓开采计划、接替计划等因素。

Reform on Ventilation System of Xishimen Iron Mine

The returning air shaft in north of Xishimen iron mine has collapsed，the ventilation roadways in the central part have been destructed，and all original ventilation roadway at the middle section from 40m to 80m in the south of the mine have been totally destroyed，resulting that the ventilation system in each district became worse and worse. The poor ventilation system and the smoke generated by bombing threaten the life and health of the staff and also seriously influence to the safety production of the mine. Based on the exact measurement of the wind pressure，wind speed，temperature and humidity of the ventilation system of the underground mine and its roadway parameters，the ventilation status quo of the iron ore is specifically analyzed and the diagram of ventilation system and ventilation network are drawn to calculate the ventilation parameters and to determine the ventilation reforming program. The reforming program is based on the actual conditions of current mining activities and roadway layout in Xishimen Iron Mine. At the same time，the reforming program takes full consideration of the deep tunnel planning，and facilitates to joint the deep ventilation program with the current ventilation program together. It involves the factors of roadway layout，ventilation systems，ventilation facilities and equipment，the mining conditions，tunneling，the planning of overall mine，the exploitation plan and the relay planning etc.