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Products > Mine ventilation fan > > BDJ62-II Series Mine Flameproof Rotary Axial Fan
Product name : BDJ62-II Series Mine Flameproof Rotary Axial Fan
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  Details:
BDJ62-II Series Mine Flameproof Rotary Axial Fan
 
1. BDJ flameproof counter-rotating local fan is a new type of local fan with international advanced level wide use. It has compact structure, ultra-low noise, high wind pressure, high efficiency and good backwind performance. According to the length of tunneling face and different ventilation requirements of roadway, it can be used as a whole machine and can be used by stages, thus reducing energy consumption and saving energy. It is an ideal equipment for local ventilation in mine. This series fan is mainly used for local ventilation in coal mine with gas or coal dust explosion danger, and also suitable for metal mine, chemical mine and tunnelConveying medium temperature no more than 40 ℃, humidity less than 95% and non-corrosive.
 
2, model description
 
BDJ62- II No. 515
 
B flameproof type
 
D-counterrotating type
 
J local fan
 
62 hub ratio 0.62
 
II low noise type (type I is common)
 
No. 5, impeller diameter D0. 5 m
 
15 blower rated power 15kW, single motor power 7.5kW

3. Structural characteristics
 
1) as shown in the structural diagram of the combination of the series of counterrotating local fans with an outsourced duplex muffler, the series is composed of a collector, a rectifier cap, an inlet silencer, a flameproof motor, a first stage impeller, a second stage impeller, and an outlet muffler, The diffusive anechoic tube consists of 8 parts.
 
2) the outer tube and structure frame are welded by steel plate, the inner cylinder is welded by perforated plate, and the inner tube is filled with silencing materials.
 
3) the two motors are fabricated, the motors are bolted to the inner air ducts, and the YBF series of electric motors are used as two-pole three-phase asynchronous motors for mine flameproof fans, which are used in the voltage grade of 380 V / 660V. The connection box of the motor is located on the outer side of the fan shell for easy wiring. There are six terminals and one grounding terminal in the connection box, and the user selects the wiring method according to the power supply voltage. When the supply voltage is 380V, the Δ connection method is selected, and the Y connection method is used when the supply voltage is 660V. the motor is connected by Δ when the fan leaves the factory.
 
4) each section of silencing duct is bolted by flange and adopts direct connection between impeller and motor. The machine is compact, durable, safe and easy to maintain
 
5) adopting counterrotating structure, two stage impeller equal speed counterrotating, vane twist direction is opposite to each other, the guide vane reduces the inner resistance of the fan, and improves the efficiency of the fan.
 
6) the series fans can be used for many purposes. In the process of tunneling, according to the requirements of ventilation, the first stage fans and the second stage fans are used alone or at the two level.
 
7) this series of fans can reverse the backwind, the backwind rate can reach more than 60%, and the backwind performance is good.
 
8) grounding device is soldered on the support foot, which is reliable to ensure safe use.

Please contact us and get detailed Technical parameters and Drawings.
 
We could Design and Produce the Marine fan,Industrial Fan,and Other Ventilation Equipment according to your detailed requirement !

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