我矿为年产35万吨的中小型矿井。井下大巷采用ZK 7-6/250型架线式电机车运输,主运输大巷长达3000多米。主斜井采用绞车提升,斜井总提升长度为1200米左右。全矿井下采用边界抽出式通风,实测大巷风速2.9米/秒,主斜井风速5.1米/秒。这样,原煤从采区煤仓装上矿车,直到运出井口一直是与风相对而行。电机车运行速度约为3.1米/秒,绞车提升速度约为3.8米/秒。因此,在运输大巷风、煤相对速度达6米/秒左右,在主斜井约为8.9米/秒。若矿车内原煤表层较干,则在整个运输、提升过程中,将引起煤尘严重飞扬,直接威胁着矿工的身体健康。为了从根本上解决这个问题, Mine is an annual 350,000 tons of small and medium-sized mine. Downhole Lane ZK 7-6 / 250 type electric locomotive transport, the main transport lanes up to more than 3,000 meters. The main inclined shaft is raised by a winch, and the total lifting length of the inclined shaft is about 1200 meters. The whole mine adopts boundary-type extraction ventilation, measured the wind speed of the roadway is 2.9m / s, and the wind speed of the main inclined shaft is 5.1m / s. In this way, the raw coal from the coal mines in the mining area to install the cart, until out of the wellhead has been relative to the wind. Electric locomotive running speed of about 3.1 m / s, winch lifting speed of about 3.8 m / s. Therefore, in the transportation laneway wind, the relative speed of coal is about 6m / s and about 8.9m / s in the main inclined shaft. If the surface of coal mine car drier, the entire transport, upgrading process, will cause serious flying coal dust, a direct threat to the health of miners. In order to fundamentally solve this problem,