The materials used for the explosion-proof extraction type axial flow fan have passed the friction spark test of the Chongqing Branch Testing Center of the Chinese Academy of Coal Sciences and met the explosion-proof requirements. The explosion-proof performance of the whole machine has passed the explosion-proof inspection of the National Explosion proof Electrical Product Quality Testing Center.

Main features:

1. The simplest structure of the fan, which adopts a direct connection between an electric motor and an impeller, has changed the current coal mine extraction type axial flow ventilation and the complex structure of using belt drive or long shaft drive, which is conducive to operation and maintenance.

2. The FBCZ series explosion-proof extraction axial flow fan for coal mines is equipped with a fully enclosed and pressure resistant heat dissipation cover and pressure balance pipe outside the motor, ensuring that the motor always operates in gas free air and meets the requirements of relevant explosion-proof regulations for coal mines.

3. The FBCZ series explosion-proof extraction axial flow fan for coal mines is a single-stage working wheel structure, with a rear guide vane installed between the fan and the diffuser to improve static pressure efficiency.

4. The fan can reverse the reverse air flow, with a reverse air volume of up to 65% to 85% of the positive air volume. There is no need to set up a separate reverse air duct, which has the advantages of saving infrastructure investment and fast reverse air speed.

5. The installation angle of the impeller blades can be adjusted according to production requirements. The fan adopts a special design, with no hump in the performance curve, and can operate stably under any network resistance.

Technical performance parameters table of FBCZ series (formerly BK54 series) explosion-proof extraction axial flow fan for coal mines: