青海木里煤田高海拔地区煤矿井下通风增氧技术探索

Probe into Ventilation and Oxygen Increasing Technology in High Altitude Area of Muli Coal Field in Qinghai Province

高海拔地区由于氧气含量较低,对人体的生理特征带来不利影响,严重时危及人体健康。根据煤矿采煤工作面和掘进工作面的作业方式特点提出了3种增氧方式,即弥散增氧、硐室吸氧和携带氧气吸氧,弥散增氧增氧量初步确定为5%,硐室吸氧供氧量初步确定为2~4 L/min。分析其优缺点,选取了合适的增氧方式,设计了针对木里煤矿井下通风增氧的实验方案。

Due to lower oxygen content of high altitudes, it is unfavorable to the physiological characteristics of the body, serious when endanger human body health. According to the operation characteristics of coal mining face and tunneling working face, three ways of increasing oxygen were put forward,including oxygen increases oxygen mass,cavern and carry oxygen oxygen, the content of oxygen increasing is determined to be 5% ,the oxygen supply of cavern oxygen oxygen is identified as 2 - 4 L/min preliminarily. The advantages and disadvantages were analysed, and the appropriate way of increasing oxygen was chosen,the experiment scheme of coal mine ventilation oxygen increasing was finally designed.