DK45 withdrawable counter rotating main fan

The DK45 withdrawable counter rotating main fan adopts twisted wing blades, which have high aerodynamic efficiency and significant energy-saving effects. Diverse performance and complete specifications, it can be well matched with ventilation networks of various resistance and air volume types, and can maintain long-term efficient operation. Equipped with a stabilizing ring device, the characteristic curve has no hump. There is no risk of surge, it can operate safely and stably under any resistance state, and is suitable for multi fan joint operation. The structure adopts a direct connection between the motor and the impeller, with good overall stability, easy installation, easy maintenance, and low local resistance of the device. Higher transmission efficiency than belts and long shafts, no transmission faults, no danger of shaft breakage, and mild foundation subsidence and slippage do not affect normal operation. Compact structure and good moisture resistance. The main body of the fan adopts a welded structure of steel plate and section steel, and the blades are made of steel plate material, hollow. The blades and overall strength are high, and the ability to resist underground blasting shock waves is strong. It can be installed on the surface and is also suitable for installation underground, especially as a fan station for multi-stage ventilation systems. Reversible reverse wind, with a reverse wind rate greater than 60%, does not require the construction of a reverse air duct. The blade installation angle can be adjusted, and the fan operating conditions can be adjusted at any time according to the changes in mine production.