Home >> Product >> Frequency Converter >> Low Voltage Frequency Converter
Mine Fan Explosion-Proof Intrinsically Safe Frequency Converter Series
  • Mine Fan Explosion-Proof Intrinsically Safe Frequency Converter Series
Mine Fan Explosion-Proof Intrinsically Safe Frequency Converter Series

Mine Fan Explosion-Proof Intrinsically Safe Frequency Converter Series

This product is mainly used for gas discharging during underground tunnel excavation process in the coal mine. The fan blower adopts explosion-proof frequency speed regulation device to control the gas concentration in the underground roadway to avoid the gas exceeding and the low concentration gas drainage. When the main air supply circuit fails, the backup circuit put into operation automatically, and control the concentration of the gas to keep continuous wind supply for working face to ensure safety.


Product Details

• The maximum efficiency of automatic gas drainage

When discharging the gas, according to the methane concentration detected in the working face and the return airway, the ventilator automatically control the local fan speed, adjust the output air volume, control the gas concentration in a safe range return, to achieve maximum efficiency excessive automatic gas drainage

• Improve the ventilation environment of working face

When normal ventilation, under the premise that ensures gas concentration does not exceed, according to the need of air volume in excavation working surface, it can adjust output air volume of the fan automatically or manually to improve the working environment

• Soft start

Change the start way of local fan to soft start, extending the service of ventilator and ram

• Avoid "invariable speed"

Can adjust the air volume automatically according to the gas concentration

• Energy saving

The air volume is adjustable, no need to make the fan operate full year,energy saving effect is remarkable, saving period is short

• Automatic monitoring

Can achieve network communication with the underground substation of coal mine safety monitoring system, to achieve automatic monitoring and scheduling, especially in the mining corner and some other places without coal mine safety monitoring system to monitor automatically

• Gas lockout

Achieve gas lockout by controlling the power switch when gas concentration exceeds

• Wind lockout

Achieve wind lockout by controlling the power switch

• Dual power to automatically switch

When the special line system fails, the combination frequency inverter automatically controls the mixed line switch to put to use, and controls the backup fan start, after the special line repair and re-put into use, the combination frequency inverter automatically cuts off the mixed line switch and controls the ventilation of special line

• Function of operation state control

Fan reversing switch. Parameters setting. Parameter and operation state automatically display. Power down memory. Ventilation state and gas drainage state automatically operate and converse. Can achieve manual control. With bypass function, can automatically or manually switch to bypass state when the inverter fails

• Integrated structure

Adopt fast opening mechanism, the shell is stable and without deformation. Adopt superconducting heat pipe radiator. The inverter of host local fan and the backup local fan are with integrated structure, can simultaneously access to the main power supply and standby power supply, main and backup wiring cavity and switch chamber should be independent. Modular structure, the inverter, and low- voltage control unit can be removed to replace and maintain


ZJT1 series mining explosion-proof and intrinsically safe type dual-power and dual-frequency speed regulation device for ventilators and BPJ1 (F) series mining explosion-proof and intrinsically safe AC inverter for ventilators are a new type of automatic gas drainage device developed by adopting advanced digital frequency speed regulation technology, fast CPU fuzzy control technology and heat dissipation technology, mainly used to control the fan of working face in coal mine, to achieve safe, efficient, automatic, and fast drainage of gas through the intelligent adjustment of air volume, eliminate the hidden danger of explosion gas accidents caused by the "invariable speed" fundamentally, and eliminate gas explosion completely. It can also adjust the air volume of the fan, improve the environment of the

working surface, maintain the continuous supply of the wind for working face, to ensure safety and achieve significant energy saving effect when normal ventilation. ZJT1-75/660SF mining explosion-proof and intrinsically safe type dual-power and dual-frequency speed regulation device for ventilators is dual power input composed of two-speed regulation devices whose structures and electric are independent and can automatically switch, special power supply and backup power access to the speed regulation device at the same time. BPJ1 (F) series mining explosion-proof and intrinsically safe AC inverter for ventilators is single power input.