Product Introduction:
BK54 and BK55 series fans have been successfully developed in combination with the ventilation network parameters of small and medium-sized coal mines. With the advantages of high efficiency, energy saving and low noise, they are used as the main fan for small and medium-sized coal mines. The materials used in the fan have passed the friction spark test of chongqing Branch of Chinese Academy of Coal Sciences and met the explosion-proof requirements. The explosion-proof performance of the whole fan has passed the explosion-proof test of the National Explosion-proof electrical products Quality testing center.
Main Features:
1. The simplest structure of the fan is the direct connection between the motor and the impeller, which changes the current coal mine shaft ventilation and the complex structure of belt transmission or long shaft transmission, which is conducive to operation and maintenance.
2. The fan is equipped with a fully enclosed heat dissipation hood and air pressure balance tube with certain compressive strength outside the motor, so that the motor can always run in gas-free air, which meets the requirements of relevant explosion-proof regulations in coal mine.
3. This series of fans is of single-stage working wheel structure. The rear guide vane is set between the fan and the diffusion to improve the static pressure efficiency.
4, the fan can be reversed counter-wind, its counter-wind volume can reach 65% ~ 85% of the positive air volume, there is no need to set another counter-wind channel, has the advantages of saving infrastructure investment and fast counter-wind speed.
5. The blade installation Angle of the impeller can be adjusted. The blade Angle can be adjusted according to the requirements of production. The fan adopts special design, the performance curve has no hump, and it can run stably under any network resistance.
Table of technical Parameters of FBCZ series (original BK54 series) explosion-proof extractor axial flow fans for coal mine:
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