KDW660/24B Mining Multi channel Explosion proof and Intrinsi
The KDW660/24B mining multi-channel explosion-proof and intrinsic safety DC stabilized power supply provides intrinsic safety working power for various sensors or intrinsic safety power supplies used in coal mines.
Product Overview
The KDW660/24B mining multi-channel explosion-proof and intrinsic safety DC stabilized power supply can be used in various occasions such as coal mine entrance, underground mining face, return air roadway, coal bunker, etc., providing intrinsic safety working power supply for various sensors or intrinsic safety power supplies used in coal mines.
safe and reliable
Complete explosion-proof qualifications, explosion-proof and intrinsic safety explosion-proof type, dual explosion-proof technology, can be safely used in gas and coal dust explosion hazardous environments.
stable output
The AC power supply, after being stepped down by a transformer and processed and protected through rectification, filtering, and voltage stabilization, continuously outputs a stable DC voltage.
Multi channel power supply
After processing and protection, the external input AC660V or AC127V power supply outputs intrinsic safety power supplies DC24V, DC18V, and DC12V.
Working Principle
Dual voltage input conversion
The external input AC 660V/127V power supply is stepped down by a transformer to AC 127V and output to the switching power supply module, completing the AC-DC conversion and generating a DC 24V primary power supply.
Multiple intrinsically safe power outputs
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The DC 24V power supply is isolated by the protection control board and outputs multiple safe voltages of DC 24V/18V/12V through an intrinsic safety circuit board to ensure explosion-proof performance for underground equipment.
Seamless battery switching for power supply
When the external power supply is interrupted, the backup battery automatically activates and continues to output DC 24V/18V/12V intrinsic safety power after isolation by the protection control board, maintaining the continuous operation of the equipment.
Structural Composition
housing
Stainless steel Q235 explosion-proof material; High temperature resistance, anti-corrosion, explosion-proof, dustproof and waterproof; Suitable for various harsh working environments.
power supply
Continuous and stable multi-channel power supply; Protection functions such as overvoltage, overcurrent, and short circuit; Automatically start working after fault recovery.
transformer
Assist in transmitting power; Three way transformer; Insulation isolation.
spare battery
7 lithium ion batteries connected in series; Working time ≥ 4h; Quick start, conversion time ≤ 500ms.
Project Case
Guonuo weighing equipment has been successfully applied to multiple domestic and foreign enterprises and has gained widespread recognition
Production Process
Guonuo Technology adopts internationally leading production processes and equipment to ensure stable and reliable quality
Dual explosion-proof safety
Adopting a dual explosion-proof design of explosion-proof and intrinsic safety, certified by the national coal safety certification, the shell is made of high-strength alloy material, and the internal circuit is double isolated to ensure safe operation in gas and coal dust explosion environments.
Voltage stabilization output processing
After being stepped down by a transformer, the AC power supply is processed through rectification, filtering, and voltage stabilization circuits, combined with overvoltage/overcurrent protection modules, to output a stable DC voltage with a ripple of ≤ 5%, ensuring the reliability of equipment power supply.
Multi channel intrinsic safety power supply
Supports AC660V/127V input. After transformer voltage reduction, rectification and filtering, it outputs multiple safe voltages of DC24V/18V/12V through an intrinsic safety circuit board. Each channel has independent overcurrent protection and is suitable for different equipment requirements underground.
Intelligent battery management
Integrated triple protection circuit for overcharging, overdischarging, and short circuit. The backup battery uses a lithium-ion battery pack and supports seamless switching of power supply; The power system is equipped with overvoltage/overcurrent/short circuit protection to ensure continuous output of intrinsic safety power supply in case of power failure.
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Sustainable Development Commitment
Guonuo Technology integrates the concept of sustainable development into the weighing industry, committed to balancing resource development and environmental protection
Environmental protection
- Invest 200 million yuan to build a mine water treatment system, with a water recycling utilization rate of 95%
- Adopting a closed coal transportation system to reduce dust emissions by over 80%
- Implementing the mine land reclamation plan, 1200 acres of vegetation have been restored
social responsibility
- Provide over 500 job opportunities for the surrounding communities of the mining area
- Invest in the construction of 3 Hope Primary Schools and 2 Community Medical Centers
- Annual investment of 10 million yuan for community development and poverty alleviation projects
Future goals
- Reduce carbon emissions intensity in production processes by 20% by 2030
- Invest 500 million yuan to develop low-carbon coal washing technology and clean utilization technology
- Realize 100% land reclamation and ecological restoration of mines by 2030
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