中国矿山工程

The Jilong Mountain Gold Mine in Hubei Province has a lot of unfinished levels, and the stopes are scattered. Consequently, a number of ventilation issues occurred, including fresh air contamination, reversed, stagnant, and disordered air flow, and air leakage. To address these issues, after verifying the total air flow, a number of measures were taken in the deep underground ventilation system: adding another fan station, replacement by two fans of the same specs, relocating the fan stations. These measures have improved the ventilation, protected personnel health, prevented ventilation accidents such as smoke poisoning, and lifted production efficiency.