并联空气幕在维护井巷安全中的应用

Application of Air Curtain by Paralleled Fans in the maintenance of Mine Security

在金川二矿主斜坡道用4台风机并联空气幕引射干燥新风进入主斜坡道,有效的降低其风流湿度,从而减少主斜坡道的冒顶和片帮,维护了主斜坡道的稳定性。安庆铜矿应用2台风机并联空气幕减少主井进风量,从而达到了防止主井结冻的目的,确保主井的提升安全。

In Jinchuan＇s No. 2 mining district, air curtain by paralleled four fans is used to eject dry and fresh air to the main ramp, the results are that the humidity of air flowing into the main ramp is reduced availably, and the roof fall and wall spalling accidents are reduced, so the stability of the main ramp can be kept. In Anqing Copper Mine, air curtain by paralleled two fans is used to reduce the air quantity into the main shaft, the freezing phenomenon on the wall of the main shaft is prevented effectively in winter, so the operation security of the main shaft can be ensure.