Mine fan with electric drive VVM-8
The VVM-8 counter-rotating shaft mine fan with an explosion-proof electric drive is designed to ventilate dead-end mines with a cross section of 16 to 35 m2 at an air density of 1.3 kg / m3, a temperature of 268 to 308 K, dust content of up to 50 mg / m3 and relative humidity up to 95% (at a temperature of 298 K).
During operation, the fan is installed in a horizontal position with a permissible deviation of the fan axis from the horizontal of not more than ± 30 °. A distinctive feature of this type of fan from VME-2 fans is a significantly higher created head with a smaller nominal diameter and greater efficiency, due to the absence of losses in rectifying devices and loss of twisting at the fan outlet. If necessary, VVM-8 fans can operate with one engine turned on, which increases the efficiency of the machine. At the request of the consumer, the fans can be supplied with voltage 380/660 V and 660/1140 V.
- modern aerodynamic design with high pressure characteristic.
- thermal protection with the ability to turn off the fan when the normal temperature of the motor winding is exceeded.
- fan blades are made of non-combustible materials.
- at the request of the customer, the fan can be equipped with a silencer.
|Nominal diameter mm||800|
|Nominal flow, m³ / s||15|
|Nominal total pressure, Pa||8000|
|Maximum Full Efficiency||0,67|
|Electric drive power, kW||90х2|
|Rotation frequency, min||3000|
|Length no more than, mm||2270|
|Height, mm, no more||1257|
|Width, mm, no more||1211|
|Set weight, kg, no more||1700|