The high-temperature unloader has an upper feeding port and a lower discharging viewing port. Under normal circumstances, when the material enters the rotating impeller from above, the rotating impeller and other volume grids are filled and rotated to the discharging port to be discharged. But under negative pressure, the material is often blown back to the upper bin, making it difficult to discharge through the impeller outlet. Therefore, a pressure equalization tube is installed on one side of the shell to balance the air pressure in the impeller compartment with that in the upper compartment, which facilitates material unloading and improves the unloading effect.

1、 The star shaped unloading device, also known as the unloader, rotary feeder, and air lock valve, is usually composed of a rotor impeller with several blades, a housing, seals, a reducer, an electric motor, and other components.

2、 When the material in the upper silo falls by its own weight and fills the gaps between the blades, it is discharged from the lower part as the blades rotate. Therefore, the star shaped unloader can discharge the material in a quantitative and continuous manner.

3、 The upper and lower flange ports of the star shaped feeder are generally square or circular, and can also be selected by the user.

4、 Star shaped unloaders are commonly used in pneumatic output systems. For pressure output systems or negative pressure output systems, star shaped unloaders can uniformly and continuously feed the conveying pipe to ensure that the gas and solid inside the pneumatic output pipe are relatively stable, so that the pneumatic conveying can work normally. At the same time, they can also block the upper and lower air pressure of the unloader and play a role in air lock; Therefore, the star shaped unloader is an important component commonly used in pneumatic conveying systems.

5、 Star shaped unloaders can be used in material collection systems as unloaders for silos; Star shaped unloader is currently an advanced unloading device in China, commonly used as one of the important equipment in dust removal systems. It is particularly suitable for dust and small particle materials, and is highly selected for engineering projects in industries such as environmental protection, metallurgy, chemical engineering, grain, cement, road construction, and drying equipment.

6、 The high-temperature resistant type can transport materials with a temperature of up to 280 ° C. The bearings at both ends are isolated from the impeller to prevent ultrafine powder from coming into contact with the bearings.

7、 The characteristic of the wear-resistant enclosed rotor impeller star shaped feeder is that the end of the rotor blade is lined with a polytetrafluoroethylene sealing strip, which can ensure good contact between the blade end and the inner wall of the shell. After wear, the blade end can be easily adjusted to maintain good contact with the inside of the shell, with better air locking performance.