The traditional methods of airflow controlling and the layout forms of mine air curtain are introduced. It defines cavern type airflow control device—the mine air curtain, which is installed in the side chamber of mine tunnel, could cut off airflow as flexible damper, increase resistance to airflow reduction as flexible wind window, and eject airflow as cavern type accessorial fan or fan ventilator station. Field application results show that the airflow partition rate of flexible damper reaches 85%〖XC半字线.tif,JZ〗88%. The flexible wind window can effectively increase airflow resistance in transport tunnel. The airflow ejected by cavern type accessorial fan or fan ventilator station reaches 30〖XC半字线.tif,JZ〗40 m 3/s. In transportation tunnel where a damper, a wind window, an accessorial fan or a fan ventilator station are difficult to be set up, the cavern type airflow control device in mine can effectively control airflow short circuit, airflow reverse and airflow cycle, increase or decrease of roadway ventilation. It can strengthen the blasting fume and dust exhaust through stage ventilation network, protect workers healthy, and improve the efficient ventilation rate to promote the mine airflow. The technology boasts wide application prospect.
