China Standard High-Pressure Underground Coal Mine Axial Fans Mining Fan
The China Standard High-Pressure Underground Coal Mine Axial Fans Mining Fan (hereafter referred to as the fan) is a novel, domestically-produced ventilation solution boasting wide applicability in underground coal mines. This innovative fan features a compact design for minimal space requirements, remarkably low noise operation, and the ability to generate high wind pressure with exceptional efficiency. It maintains stable operation even in areas with restricted airflow and offers a broad range of high-efficiency operation conditions. To accommodate the specific driving face length and ventilation needs of each tunnel, the fan can be operated as a complete unit or in individual stages. This versatility allows for significant energy consumption reduction, translating to substantial energy savings. The China Standard High-Pressure Underground Coal Mine Axial Fans Mining Fan is the ideal equipment for long-distance ventilation in mine roadways.
Structures
1. Current collector 2. Panel-type muffler front tube 3. First-level panel-type muffler host 4. First-level impeller 5. Second-level impeller
6. Secondary panel-type muffler main engine 7. Third-stage impeller 8. Guide vane tube 9. Panel-type muffler diffuser tube
Two-stage design: The fan combines a no guide vane axial flow local fan with an embedded panel type silencer. It utilizes a 2-stage impeller configuration for increased efficiency (refer to figures 1 and 2 in the original text).
Contra-rotating impellers: Each stage consists of an impeller directly mounted onto the shaft extension of a flameproof motor. Adjacent stages employ impellers rotating in opposite directions for enhanced airflow acceleration.
Integrated structure: The fan boasts a welded steel plate barrel and structural parts. Noise reduction is achieved through a front silencer, anechoic main unit, anechoic diffuser, and soundproof outer barrel filled with sound-absorbing cotton. This panel mount design allows for direct airflow contact with the cotton, maximizing noise elimination.
Streamlined runner: Unlike motor assembly type contra-rotating local fans, this fan integrates the motor junction box mounting plate directly onto the outer casing. This creates a smoother runner profile, leading to improved efficiency and simplified junction box assembly.
Tight structure: Flange bolts connect each air duct section, while the impeller directly connects to the motor. This construction ensures a rigid, durable, and secure fan that is easy to maintain and repair.
Contra-rotating, guide vane-less design: The absence of guide vanes and the contra-rotating structure minimize internal resistance, thereby enhancing overall fan efficiency.
Multi-stage operation: The fan offers operational flexibility. Depending on ventilation needs, it can be operated as a single stage or utilize all stages for maximum airflow. However, efficiency may be slightly lower in single-stage mode.
Parameters Table
| No. | motor power | air Volume（m3/min） | full pressure（Pa） | Maximum full pressure efficiency（%） | compared to a sound levels[dB(A)] |
|---|---|---|---|---|---|
| No3.5 | 2×1.1 | 153～76 | 250～1500 | ≥75 | ≤30 |
| No3.5 | 3×1.1 | 153～76 | 350～2100 | ≥75 | ≤30 |
| No3.5 | 4×1.1 | 153～76 | 450～2700 | ≥75 | ≤30 |
| No4 | 2×2.2 | 220～113 | 300～1800 | ≥75 | ≤30 |
| No4 | 3×2.2 | 220～113 | 420～2520 | ≥75 | ≤30 |
| No4 | 4×2.2 | 220～113 | 540～3240 | ≥75 | ≤30 |
| No4.5 | 2×4 | 220～150 | 300～2300 | ≥75 | ≤30 |
| No4.5 | 3×4 | 220～150 | 420～3220 | ≥75 | ≤30 |
| No4.5 | 4×4 | 220～150 | 540～4140 | ≥75 | ≤30 |
| No4.5 | 2×5.5 | 240～160 | 320～3100 | ≥75 | ≤30 |
| No4.5 | 3×5.5 | 240～160 | 440～4340 | ≥75 | ≤30 |
| No4.5 | 4×5.5 | 240～160 | 580～5580 | ≥75 | ≤30 |
| No5.0 | 2×7.5 | 300～180 | 340～3500 | ≥75 | ≤30 |
| No5.0 | 3×7.5 | 300～180 | 480～4900 | ≥75 | ≤30 |
| No5.0 | 4×7.5 | 300～180 | 610～6300 | ≥75 | ≤30 |
| No5.6 | 2×11 | 400～200 | 350～4000 | ≥80 | ≤25 |
| No5.6 | 3×11 | 400～200 | 350～4000 | ≥80 | ≤25 |
| No5.6 | 4×11 | 400～200 | 630～7200 | ≥80 | ≤25 |
| No6.0 | 2×15 | 450～250 | 440～5100 | ≥80 | ≤25 |
| No6.0 | 3×15 | 450～250 | 620～7100 | ≥80 | ≤25 |
| No6.0 | 4×15 | 450～250 | 790～9200 | ≥80 | ≤25 |
| No6.0 | 2×18.5 | 500～250 | 450～5500 | ≥80 | ≤25 |
| No6.0 | 3×18.5 | 500～250 | 630～7700 | ≥80 | ≤25 |
| No6.0 | 4×18.5 | 500～250 | 810～9900 | ≥80 | ≤25 |
| No6.0 | 2×22 | 550～250 | 450～6000 | ≥80 | ≤25 |
| No6.0 | 3×22 | 550～250 | 630～8400 | ≥80 | ≤25 |
| No6.0 | 4×22 | 550～250 | 810～10800 | ≥80 | ≤25 |
| No6.3 | 2×30 | 630～260 | 460～6300 | ≥80 | ≤25 |
| No6.3 | 3×30 | 630～260 | 640～8820 | ≥80 | ≤25 |
| No6.3 | 4×30 | 630～260 | 830～11340 | ≥80 | ≤25 |
| No6.7 | 2×37 | 730～410 | 920～6500 | ≥80 | ≤25 |
| No6.7 | 3×37 | 730～410 | 1200～9000 | ≥80 | ≤25 |
| No6.7 | 4×37 | 730～410 | 1480～1160 | ≥80 | ≤25 |
| No7.1 | 2×45 | 820～550 | 1480～6650 | ≥80 | ≤25 |
| No7.1 | 3×45 | 820～550 | 1480～9130 | ≥80 | ≤25 |
| No7.1 | 4×45 | 820～550 | 1850～11740 | ≥80 | ≤25 |
| No7.5 | 2×55 | 980～630 | 1850～6800 | ≥80 | ≤25 |
| No7.5 | 3×55 | 980～630 | 1850～9240 | ≥80 | ≤25 |
| No7.5 | 4×55 | 980～630 | 2200～11880 | ≥80 | ≤25 |
| No8.0 | 2×75 | 1250～680 | 2200～7100 | ≥80 | ≤25 |
Application
Underground Mines: The FBCZ series underground axial flow fan can be used for ventilation in various underground mines, such as coal mines, metal mines, and non-metallic mines.
Tunnel Projects: The FBCZ series underground axial flow fan can also be used for ventilation in various tunnel projects, such as highway tunnels, railway tunnels, and water conservancy tunnels.
Other Places Requiring Explosion-proof Ventilation: The FBCZ series underground axial flow fan can also be used in other places requiring explosion-proof ventilation, such as chemical plants, petrochemical plants, and power plants.
Advantages
1. Enhanced efficiency and energy savings: The fan’s unique two-stage, contra-rotating impeller design effectively accelerates airflow, leading to higher wind pressure and efficiency compared to traditional single-stage axial fans.
2. Reduced noise levels: The fan incorporates a comprehensive noise reduction system, including a front silencer, anechoic main unit, anechoic diffuser, and soundproof outer barrel filled with sound-absorbing cotton.
3. Sturdy and durable construction: The fan’s welded steel plate barrel and structural parts provide a robust and durable framework, ensuring long-lasting operation in harsh underground mining environments. The tight structure, featuring flange bolts connecting each air duct section and a direct impeller-to-motor connection, enhances overall rigidity and stability.
Intelligent advantages
We have integrated intelligent design into our underground axial flow fan ventilation systems, catering to the unique needs of both mining and tunneling projects. Our intelligent ventilation monitoring system boasts a comprehensive suite of features and cutting-edge technologies, enabling seamless optimization and enhanced safety across diverse underground environments.
Our intelligent ventilation monitoring system meticulously crafts customized ventilation plans for various mine zones, including coal working faces, excavation working faces, and development tunnels prone to disasters. Similarly, for tunnel engineering projects, our system ensures optimal airflow distribution throughout the tunnel, maintaining a safe and productive working environment.
Proactive monitoring and analysis of system performance ensure the stability and reliability of your ventilation system, minimizing downtime and safeguarding the safety of your operations, whether in mines or tunnels.
Granular control over airflow allocation reduces energy consumption, enhances worker comfort and productivity, and optimizes ventilation efficiency in both mining and tunneling operations.
Continuous monitoring of gas concentrations and detection of anomalies trigger timely alerts, enabling rapid intervention and averting potential disasters, preventing mine and tunnel accidents.
Product Cases
A large iron mine has adopted our High Pressure Energy Saving Axial Flow Fans to address its ventilation challenges. These fans have proven their ability to handle high air volumes and harsh mining conditions, ensuring a safe and productive work environment while minimizing energy expenditure.
Customized axial fan ventilation system for a tunnel project in South America. Using FBDY series axial flow fans, the ventilation distance reaches 10km. This innovative ventilation solution stands as a testament to the exceptional performance and versatility of FBDY axial flow fans, ensuring adequate airflow even in the challenging environment of a lengthy tunnel.
A South American gold mine has chosen our High Pressure Energy Saving Axial Flow Fans as their preferred ventilation solution. These fans excel in providing adequate air circulation even in the most demanding underground environments, ensuring optimal working conditions for miners while reducing energy consumption.
Client Support Services
Our commitment extends beyond providing high-performance fans. Our team of ventilation experts is readily available to assist you in selecting the right fan solution for your specific needs, providing expert advice and technical support throughout the entire process.
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