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Designed for ventilation of dead-end coal and ore mine workings, including mine workings with gas and dust hazard

VME FAN

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VME FAN APPLICATION

Axial single-stage local ventilation fan of VME series (VME-5; VME-6; VME-8; VME2-10A; VME-12A) with explosion-proof removable motor is designed for ventilation of dead-end coal and ore mine workings, including mine workings with gas and dust hazard, at air density up to 1.3 kg/m3, temperature from 253K to 308K, dust content up to 50 mg/m3, and relative humidity up to 95% (at a temperature of 298K).

Fans can be equipped with a monitoring and diagnostic system with the possibility of outputting information to the dispatcher's AWS.

Explosion-proof motor

Inlet manifold

Antistall device

VME fan design

The fan consists of an integrated removable motor with a special terminal box, straightener, impeller, inlet manifold, antistall device, connecting outlet nozzle, skids, and noise muffler.

Dynamic balancing of the impellers with a high accuracy class ensures durable and reliable operation of the fan.

The fan is manufactured for conditions U5 and T5 according to GOST 15150.

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The motor bed at the free end of the shaft is equipped with a groove for installing the motor in the fan housing. The motor is attached to the fan housing with a ring and four bolts.

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The impeller is installed at the cantilever end of the rotor shaft; the profiled rotating blades are mounted on a cone hub of the impeller. Regulation of the total pressure developed by the fan in the working area is performed by rotating the impeller blades when the fan is at a standstill.

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The housing is equipped with a straightener, which ensures the straightening of the air flow and increases the total pressure of the fan.

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The manifold improves air inlet conditions, increases total pressure, and reduces fan noise. The fan is connected to the pipe column by means of a nozzle on which the rubberized pipes are secured with a clamp.

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An antistall device extends the fan operating range and prevents its surging.

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The fan housing is equipped with arrows indicating the direction of air flow and the direction of the wheel rotation.

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The current from the mains is brought by cable type KOGESH through the terminal box.

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For ease of transportation and installation, the fan is mounted on skids and equipped with loops on the housing to hang it from the mine roof.

TECHNICAL SPECIFICATIONS

acoustic characteristics

*Note: Corrected sound power level according to GOST 23941-79, without noise muffler not exceeding 109 dBA at maximum full efficiency factor; 103 dBA with a muffler.

AERODYNAMIC CHARACTERISTICS