An exhaust cooling fan is a device that draws air into the extruder during the extrusion production process, while discharging exhaust gases and water vapour. When selecting and installing an exhaust cooling fan, companies need to consider factors such as exhaust capacity, sensor location, temperature control system, and the purpose of the cooling fan.

The main function of the exhaust cooling fan is to discharge the heat and exhaust gases inside the extruder to keep the temperature and pressure inside the extruder stable, so as to ensure the normal operation of the extruder. The exhaust fan is usually installed on the top or side of the extruder to dissipate heat and ventilate the inside of the extruder by drawing in air and discharging it.

The performance of an exhaust fan is affected by a number of factors, such as exhaust capacity, speed, number and size of blades, blade inlet angle, etc. The performance of an exhaust fan is determined by its ability to exhaust air, its speed, the number and size of blades, and the angle of blade inlet. Exhaust capacity refers to the amount of exhaust gas and water vapour that can be discharged by the exhaust fan, the greater the exhaust capacity, the more stable the temperature and pressure inside the extruder. The rotational speed refers to the rotational speed of the exhaust fan, the higher the rotational speed, the stronger the exhaust capacity of the exhaust fan. The number and size of blades, blade inlet angle and other factors will also affect the performance of the exhaust fan.

In the selection and installation of exhaust cooling fan, enterprises need to choose the appropriate exhaust cooling fan according to the specifications of the extruder and production process. At the same time, enterprises also need to pay attention to the maintenance and repair of the exhaust cooling fan, regular inspection and cleaning of the exhaust cooling fan to ensure its normal operation.