The size of the mining air duct varies depending on the condition of the tunnel. Some coal mines have different tunnel sizes. If you encounter a small part of the tunnel, create a mining air duct with a large or small head. In this case, the construction will be carried out here. The device will then not be affected by the hair dryer. Many customers also choose to upgrade from larger to smaller in order to save money, because the price of the smaller diameter hair dryer will definitely be cheaper.
What are the precautions for installing and using mining fans?
Normal mining air ducts are made of PVC coated fabric. If the material is good, you can choose 3*3 or 3*4. The colors of mining air ducts are black, ** and green. The diameter If the diameter is less than 1000mm, use loops at both ends, and if the diameter is greater than 1000mm, uUse zippers (and most of them are**).
The diameter of the air duct used in mining fans should be larger than the diameter of the fan impeller to reduce the resistance of the air duct itself and improve the efficiency of the ventilation. Mining fans larger than 2 × 18.5 kW should be used; powerful air ducts, to prevent the wind pressure from being too high and blowing the dryer. Regularly clean the silencer inside the hull
2. The FBD series has two motors inside. When wiring, only one unit should be tested first; FB series fan has a motor inside. The direction of rotation of the motor is consistent with the direction arrow.
3. When starting the FBD series counter-cyclone fan, the first stage fan should be started first, then the second stage fan should be started after a fonnormal operation.
4. For high-power local fans, the front and rear bearings of the motor should be lubricated regularly to prolong the service life; dust and debris on the orifice plate should be kept clean with a special sound deadener. Materials to improve noise reduction.
5. When the mining fan is not in use, it should be placed where air circulates to avoid moisture and corrosion.
6. The exposed section of the motor input wire peeled off connection should not be more than 1.5mm, the insulation resistance should not be less than 1 megohm, and the ground wire inside the fan should be connected correctly and reliably.
7. During the transportation and installation process, it should not be subjected to significant impacts to prevent the housing from deformation and causing friction between the blades and the housing.
8. HASBefore using the mining fan, check whether all the fixings are complete, whether the connection is firm and reliable, whether the operation is flexible and whether there is any abnormal noise, etc.
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