Mine ventilation

Mine ventilation which plays a crucial role in safety is one of the most important equipment for making sure the safety in production of mine. The safety, reliability, stability and energy conservation of mine ventilation affect the safety and benefit of mine.

 
  • Abstract
  • Configurations
  • Applications

Mine ventilation which plays a crucial role in safety is one of the most important equipment for making sure the safety in production of mine. The safety, reliability, stability and energy conservation of mine ventilation affect the safety and benefit of mine.


This solution use medium-voltage VFD to implement speed regulation of fan. VFD reduces motor starting current, motor starting torque, grid voltage drop during starting period and mechanical impact of motor and fan. VFD also helps to increase the lifespan of mechanical equipment.

 

 
 
 

NANCAL mine ventilation VFD system solution which combines VFD with vector control and reliable automatic control platform with hardware redundancy can improve safety and reliability of system data communication with advanced and redundant industry communication network and protocol. It can also implement fan energy conservation with accurate, high efficient, convenient air regulation and control technology under the circumstance of satisfying technological requirements.

 
Use advanced sensor technology to measure actual data from field including fan speed, negative pressure, pressure, blast capacity, stator temperature, motor current, motor voltage, motor speed, motor power, etc. Those data will be used in monitoring and alarm function.
 
NANCAL mine ventilation VFD system solution implemented system integration as follow:
 
1) Medium/low voltage distribution and integrated protection system;
2) Medium VFD system;
3) Mine ventilation online monitoring system;
4) Mine ventilation automatic control system based on hardware redundant technology;
5) Mine ventilation computer operation and monitor system;
6) Redundant industry data communication system.

 
 
 
 

 

Shanyang mine center return vertical shaft fan project
Ventilator: total 2 sets, one spare.
Motor: Rated power 500kW, rated voltage 10kV, 4 sets;
VFD: input voltage 10kV, output voltage 10kV, output power 1000kW, 2 sets.
 
Shanxi Yanchang oil group Hengshan Weiqiang coal company ventilation project
Ventilator: total 2 sets, one spare.
Motor: Rated power 400kW, rated voltage 10kV, 4 sets;
VFD: input voltage 10kV, output voltage 10kV, output power 560kW, 4 sets.
 
 

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