Explosion-proof Axial Flow Fan

When installing a newly purchased ventilation fan, it is necessary to handle the installation site well, clean the roadway, hang the various components of the ventilation fan in sequence onto the laid steel rails, connect and tighten the components, and connect the power and instrument wires according to the motor user manual.

The ventilation fan must be installed on the surface of the outlet of the branch air duct, with explosion-proof doors installed according to regulations, and ensure that the air exchange port of the partition chamber is connected to the atmosphere.

Before installing a new ventilation fan, the following aspects should be checked:

1. Check whether the voltage of the motor and control cabinet match, and whether the insulation is qualified.

2. Before powering on, use a megohmmeter to check the cold insulation resistance value of the motor, which should be greater than 50 M Ω.

3. Is the gap between the blades and the casing (or protective ring) even? The minimum gap on one side should be greater than 2.5mm.

4. Check if the installation angle of the blades is consistent and if there is any looseness.

5. The ventilation fan should be flexible, with complete and undamaged components. Any problems should be promptly addressed before installation.

The FBC (D) Z-series explosion-proof extraction (counter rotating) Axial Flow Ventilation Fan for coal mine surface can be used as a replacement product for large, medium, and small coal mines, as well as a product for new mines. The ventilation fan is equipped with non-stop air injection and oil discharge devices, which can add lubricating oil during operation. When the machine is shut down, the oil discharge port cover can be opened to discharge waste oil. The ventilation fan can transport underground air containing explosive gases of methane in the medium, and is generally designed for horizontal installation with a designed service life of not less than 20 years. The operating time before the first major overhaul is not less than 9000 hours. The impeller barrel of the ventilation fan is equipped with H62 brass protective ring, which can be used with two processes: riveting and explosive welding. It has passed the friction spark safety test of the National Coal Mine Dust Prevention Ventilation Fan Safety Quality Supervision and Inspection Center, solving the hidden danger of fire or explosion caused by blade collision during operation in dirty wind. The fan blades and the inside and outside of the casing have undergone multiple anti-corrosion and moisture-proof treatments, allowing the fan to operate for a long time in a humid environment, effectively solving the problem of corrosion caused by other conditions on the fan.

The blades adopt internationally leading curved swept combination three-dimensional twisted orthogonal and aviation wing blade profiles, and the impeller is directly connected to the motor for transmission. The aerodynamic performance is good, the high-efficiency area is wide, the static pressure efficiency is high, and the energy-saving effect is significant. The ventilation fan blades have steel hollow riveted structure and high-strength cast (forged) aluminum structure, and the installation angle can be adjusted. Users can adjust according to the required air volume and pressure in the front and rear stages; It can also be adjusted according to the frequency conversion control system to meet usage requirements and achieve energy-saving effects. At the same time, the unique blade structure design combined with a silencing device controls the noise during the operation of the ventilation fan within the national noise standards, reducing environmental pollution. The motor of the ventilation fan is placed in the flow channel and isolated from the polluted air containing gas through a flow separation chamber; When the ventilation fan is running, fresh air can be sent into the isolation chamber through the air flow pipe to cool the motor, making the operation of the ventilation fan safer and more reliable.

Our main products include: Coal mine fan,Fan distribution cabinet,Local ventilation fan,Equipment maintenance parts,mine ventilating fan,Tunnel Fan.