Inline Duct Fans for Mine Ventilation and Reliability for Underground Safety Easy Installation and Wide Applicability DJT Serie

Optimized Technical Documentation for Diagonal Flow Ventilation Systems

1. Operational Significance in Mining Environments
Diagonal flow ventilation units serve as critical infrastructure for underground occupational safety. Engineered to maintain atmospheric equilibrium, these systems perform dual-phase air management: supplying purified airflow to subterranean workspaces while actively evacuating hazardous contaminants (e.g., methane, carbon monoxide, and particulate matter). Their optimized aerodynamic architecture ensures uninterrupted operation under extreme conditions, directly mitigating risks of asphyxiation, explosive gas accumulation, and heat stress—thereby safeguarding personnel welfare and operational continuity.

2. Adaptive Impeller Design for Multisector Applications
The turbine assembly of diagonal flow fans incorporates modular impeller configurations, enabling tailored compatibility across diverse industrial ecosystems. Key design parameters include:

• Scalable blade geometries (axial-radial hybrid profiles) to accommodate airflow rates from 1,500–25,000 m³/h;
• Material customization (aluminum alloys, fiber-reinforced polymers) for corrosion resistance in chemically aggressive environments;
• Dynamic pressure optimization (800–5,000 Pa static pressure range) supporting applications in confined tunnels, high-rise HVAC ducts, and civil emergency ventilation networks.
  This versatility ensures seamless integration with both conventional and smart ventilation infrastructures, complying with ISO 13349/ATEX standards.

3. Installation Efficiency and Deployment Flexibility
Deployment protocols prioritize rapid commissioning with minimal infrastructural disruption:

• Tool standardization: Assembly requires only ISO-certified mechanical kits (torque wrenches, flange aligners), eliminating dependency on specialized equipment.
• Space-agnostic mounting: Units support wall-, ceiling-, and duct-embedded installations via universal bracketing systems, adaptable to irregular surfaces or vibration-prone zones.
• Pre-commissioning automation: Integrated IoT-ready sensors auto-calibrate airflow parameters during setup, reducing manual configuration by 60–75%.
  Field trials demonstrate a 90-minute average installation timeline, with zero requirements for structural reinforcement or bespoke on-site modifications.

Product Parameters

Product Dimensions

Product size parameters

Guangdong Zhongdian Jiajin Environmental Technology Co., Ltd.

originated from Foshan City Nanhai Zhongxing Hardware and Electrical Appliance Factory (with brands including Zhongdian Fresh Air and Zhongdian New Science), is a modern National High-tech Enterprise mainly engaged in manufacturing:

DKT external rotor air conditioning fan (curved and square),

Mixed flow pressurized duct fan,

KTF stainless steel external rotor centrifugal fan cabinet,

Air curtain fan,

Purification type low-noise fan,

Centrifugal low-noise ventilation equipment,

EC frequency conversion digital energy-saving fans, etc.

The manufacturing base is located in Foshan City, Guangdong Province.

Since its establishment in 1997, we have always adhered to the quality line and actively created our own brand, Zhongdian. We have successively passed ISO9001, CE and CCC certifications, and obtained multiple utility model patents. Our comprehensive strength and brand influence rank among the top in the industry.

Guangdong Zhongdian Jiajin Environmental Technology Co., Ltd. adheres to the business philosophy of "technology driven development, respect for talent, reform and innovation, and pursuit of excellence", introduces numerous advanced automation equipment and 5S management systems, attaches importance to user experience of products, and takes continuous customer satisfaction as the business orientation. After unremitting efforts, we have become the leader in the fresh air system market.

Guangdong Zhongdian Jiajin Environmental Technology Co., Ltd. adheres to the principle of prioritizing quality over output, and has won the trust of users across the country with excellent quality and outstanding performance. And strive to enhance competitive advantages in pre-sales, in sales, after-sales and other aspects, and will continue to adhere to the creed of customer first and service first. It is the continuous iteration of products and services, striving to become a leading brand in mid to high end fresh air system equipment.