Pingdingshan Coal Group
Mining industry solutions
Mining environments present multiple challenges such as explosion protection, dust, high gas levels, load impacts, and remote monitoring, and the safety and stability of power supply equipment directly affect production continuity. For mining scenarios, CEEG provides mining flameproof transformers, flameproof switchgear, and mobile power supply solutions.
Mining Industry Challenges
- Underground coal mines are flammable and explosive environments in which gas and coal dust can be ignited by an electrical spark at any moment. Power supply equipment must pass stringent explosion-proof certification, and any defect in sealing or structure can lead to serious consequences.
- Mining equipment starts and stops frequently and generates violent load impacts, subjecting transformers to wide current fluctuations over the long term. This imposes demands on active-part strength, insulation margin, and overload capability far higher than those of conventional scenarios.
- Underground spaces are cramped and dust concentrations are high, leaving poor heat dissipation and easy dust accumulation. Maintaining stable temperature rise and insulation performance in a sealed environment is the key to safe long-term operation.
- As mining sections advance with the excavation, power supply points must be relocated frequently, and remote monitoring of equipment operating status is urgently needed. Conventional fixed power supply schemes struggle to balance flexibility with safety.
Core technology of the new generation of mining flameproof transformers
We pair a 1MPa-class full-corrugated cylindrical flameproof enclosure with a precision interlocking structural design to create a dual protection system that locks electrical sparks securely inside the enclosure, providing reliable safety assurance for underground equipment operation.
To address the heat dissipation challenge underground, the product adopts a breakthrough patented full-corrugated cooling design. It integrates an active cooling tube network with a zoned heat dissipation layout, and combines a curved corrugated roof with open sides to expel heat efficiently and keep equipment at its optimal operating condition.
The insulation system uses DuPont NOMEX insulation paper combined with VPI vacuum pressure impregnation to build a comprehensive insulation barrier. The elliptical active part breaks through space constraints, while eight-point fastening technology and a vertical handhole design significantly improve maintenance efficiency.
To meet the dynamic power supply needs of mining sections, we provide a professional wheeled chassis system that lets high-power equipment relocate flexibly, matched by full-coverage safety early warning. Our innovative low-voltage double-split technology enables a single transformer to deliver two sets of three-phase power, and works with an intelligent PLC and dual-circuit protection system to further optimize underground space utilization.
Customer Cases
More customer casesSDIC New Energy Group
Shenhua Group
Uzbekistan Project
Qinfa No.1 Mine Coal Washing Plant Project, SDE Mine, Indonesia
Related Products
More productsConsultation Process
Contact Us01
Needs Assessment
We discuss project type, capacity, voltage class, application, installation environment, and delivery milestones to define basic requirements.
02
Parameter Confirmation
Load characteristics, energy efficiency class, cooling method, protection requirements, interface conditions, and applicable standards are confirmed as technical inputs.
03
Solution Sign-Off
Product selection, technical solutions, drawings, test requirements, and commercial terms are confirmed to advance contract signing.
04
Production Scheduling
Design, procurement, manufacturing, in-process inspection, and factory testing are organized per the confirmed technical documents to keep delivery on schedule.
05
Shipment and Delivery
Packaging, protection, logistics shipping, and delivery documentation handover are completed, supporting on-site acceptance and equipment positioning.
06
Installation Service
Installation and commissioning, operation guidance, O&M recommendations, and after-sales response support long-term stable equipment operation.