Ventilation fans for coal mine

The large -scale shaft circulation fan of coal mine is a device specifically used in the under -gymnobic ventilation system. Because there are dangerous substances such as combustible gas and coal dust under the coal mines, ventilation equipment needs to have explosion -proof function to ensure the safe environment under the well. The explosion -barriers use special design and materials, which can prevent the spark or high temperature inside the device from explosion of flawed gas. It is usually composed of motor, impeller, shell, and explosion -barrier device. The impeller of the device uses axial flow design, which can generate a large amount of air flow, and discharge harmful gases and coal dust under the well to keep the underground air flow and fresh. At the same time, the explosion -barriers can effectively prevent sparks or high temperatures from entering the device and avoid explosion. The large -scale shaft circulation fans of coal mines play a vital role in the ven…