FD Series Mine Axial Flow Local Ventilators are mainly used for medium to long-distance ventilation in non-coal mine underground areas, suitable for ventilation at mining faces. They are a new generation of versatile local ventilators. FD Series Axial Flow Mine Ventilator Product Advantages: 1. The FD Series mine axial flow ventilators feature reasonable structure, complete specifications, significant effects, low noise, and long air delivery distance. Ventilation can be maintained normally without moving the ventilator within a tunnel length of 2000m, reducing labor intensity for workers, saving ventilation time, and making it an ideal equipment for local ventilation in non-coal mine underground areas. 2. The FD Series mine double-screw axial flow local ventilators consist of two working main units, with two impellers rotating in opposite directions. The first impeller rotates clockwise, and the second impeller rotates counterclockwise, with the number of blades in each stage being prime numbers. Air gains energy from the first impeller and is boosted by the second impeller before being discharged. In addition to increasing the airflow energy, the second impeller also has the function of a static guide vane in a conventional axial flow ventilator, straightening the airflow impact, increasing airflow energy, reducing wake vortices, and lowering noise. 3. The FD Series mine double-screw axial flow local ventilators are equipped with an outer casing noise reduction device, offering ultra-low noise characteristics and improving the noise environment in the confined space of the underground. 4. The main body of the FD Series mine double-screw axial flow local ventilator is made of steel plate welding structure, with blades and internal housing treated for corrosion and moisture resistance, allowing the ventilator to operate for a long time in humid environments, effectively solving the corrosion issues caused by other conditions. zmjt062 5. The FD Series mine double-screw axial flow local ventilators are matched with Y series three-phase asynchronous motors, with a voltage level of 380V. The ventilator can be equipped with a non-stop operation oil injection and extraction device, ensuring that oil injection and extraction are carried out during operation, guaranteeing the long-term reliable safe operation of the motor under harsh conditions. 7. The operating environment for the FD Series mine double-screw axial flow local ventilators has a gas temperature of -20℃ to +40℃, relative humidity not exceeding 95% (at 25℃), and an altitude not exceeding 1000m. The dust content of the medium transported by the ventilator must not exceed 200mg/m3. The ventilator mainly transports air and non-corrosive, non-self-igniting media that do not contain sticky substances, with a dust content not exceeding 200mg/m3.