FBDNO6.3/2 * 18.5 Mining Local Ventilation Fan 18.5KW Mining Explosion proof Ventilation Fan Stable and Energy saving

Description :

　　FBDNO6.3/2*18.5Mining local ventilation fan 18.5KW mining explosion-proof ventilation fan stable and energy-saving

　　Beautiful things are strengthened by quality rather than quantityFBDNO6.3/2 * 18.5 Mine Local Ventilation FanQuality embankment, striving to create a market brand,Stable and energy-saving mining explosion-proof ventilation fanConquer people's hearts with quality and make the market aware,FBDNO6.3/2 * 18.5 Mine Local Ventilation FanResponsibility lies on the shoulders, integrity lies in words and deeds.

　　1、 FBDNO6.3/2 * 18.5 Mine Local Ventilation FanStructure and Characteristics

　　Mining explosion-proof ventilation fanComposed of two or more working machines, with two or more stages of impellers rotating in opposite directions. The first stage impeller rotates clockwise, the second stage impeller rotates counterclockwise, and the number of blades in the two stages is prime to each other. The air obtains energy from the first stage impeller and is pressurized by the second stage impeller before being sent out. In addition to increasing airflow energy, the secondary impeller also has the function of static guide vanes in ordinary axial flow fans. While obtaining the velocity component in the circumferential direction of the guide, it smooths out the airflow impact, increases airflow energy, reduces wake vortices, and lowers noise. Compared with similar products in China, it reduces A-level noise by 10-20 decibels and has stable performance, making it safer and more reliable.

　　2、 FBDNO6.3/2 * 18.5 Mine Local Ventilation FanEnvironmental conditions for use:

　　1. The ambient air temperature ranges from -20 ℃ to 40 ℃;

　　2. Relative humidity of ambient air: ≤ 90% (at 25 ℃);

　　3. The altitude shall not exceed 1000m;

　　4. No strong vibrations or corrosive gases;

　　5. Installed in the air intake roadway of coal mines with gas explosion hazards

　　3、 FBDNO6.3/2 * 18.5 Mine Local Ventilation FanExplosion proof type:

　　1. Explosion proof type of ventilation fan: explosion-proof type; Explosion proof mark "Exd I";

　　2. Explosion proof type of electric motor: flameproof type

　　4、 FBDNO6.3/2 * 18.5 Mine Local Ventilation Fan

　　Mining explosion-proof ventilation fanThe fan is well-designed and has good craftsmanship. Its blades are designed with a ternary fluid, forming a twisted wing shape. The high-efficiency operating area of the fan is large, ensuring that the operating fan is always within the high-efficiency working range; Low noise: The FBD series mining ventilation fan adopts a counter rotating direct drive, which reduces the guide vane device compared to the old fan. It increases the fan pressure while straightening out the direction of air flow, reducing air scraping noise. The casing adopts an external compound noise reduction device, and the overall operating noise can be controlled below 85 decibels (below 35 decibels compared to A sound level), with ultra-low noise characteristics, and has a significant effect on changing the noise environment of underground confined spaces.

　　5、 FBDNO6.3/2 * 18.5 Mine Local Ventilation FanTechnical Specifications:

　　Model: FBDNo6.3/2 * 18.5Mining explosion-proof ventilation fan

　　Installed power (KW): 2 * 18.5

　　Rated speed (r/min): 2900

　　Airflow (cubic meter/min): 500-350

　　Full wind pressure (Pa): 870-5000

　　Total pressure efficiency (%): ≥ 80

　　Upgrade to A (dB): ≤ 25

　　Dimensions (mm): 2450 * 690 * 945

　　Weight (kg): 735

　　6、 FBDNO6.3/2 * 18.5 Mine Local Ventilation FanPurpose and Scope of Application

　　FBD seriesMining explosion-proof ventilation fanIt is developed by Shandong Hongyi based on summarizing the structure and technical performance of existing counter rotating axial flow fans in China, and producing a new generation of widely used energy-saving local ventilation fans. This product is mainly used in coal mines and underground coal mines with explosive gas hazards, for medium and long-distance ventilation in coal mining working faces. It is also widely used for ventilation and air exchange in industries such as metal mines, chemical mines, tunnels, metallurgy, chemical building materials, etc. It is suitable for places where the medium temperature does not exceed 40 ℃ and the relative humidity does not exceed 95% RH (at 25 ℃).

　　7FBDNO6.3/2 * 18.5 Mine Local Ventilation FanInstallation and precautions:

　　1. Before using a ventilation fan that has been transported over long distances or left unused for a long time, the cold insulation resistance of the stator of the motor must be measured

　　2. The edge resistance should not be less than 50 megohms. If it does not meet the requirements, it should be dried. After passing the inspection, the required power supply can be connected. The trial run should last for about ten minutes. If there is no abnormal noise, it can be put into operation.

　　3. Before use, the radial clearance between the wind turbine and the casing should be strictly checked to be 1.5 ‰ to 3.5 ‰ of the impeller diameter, and all clearances should not be less than 1.00mm. The clearance around should be uniform.

　　4. The direction of rotation of the impeller must be consistent with the direction indicated by the arrow on the casing.

　　5. Ventilation fans must be managed and operated by dedicated personnel.

　　6. The installation of ventilation fans must comply with the relevant provisions of the "Coal Mine Safety Regulations".

　　FBDNO6.3/2*18.5Mining local ventilation fanQualification is not high quality, satisfaction is the only way to have a market,Stable and energy-saving mining explosion-proof ventilation fanFor product quality, it is either 100 points or 0 points. Shandong Hongyi produces FBD and FBCD series mining local ventilation fans. We look forward to your inquiry and cooperation!

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