The star-type unloader commonly known as discharge, star discharge, also known as rotary feeder valve lock, dust unloading valve. Usually star-shaped discharge structure with the number of blades of the rotor impeller, housing, seals, and reducer, motor and other components. When the upper silo filling materials fall by gravity in leaves between the gap, with the blade rotation while the upper unloading. Thus, the discharger of the star quantitative continuous discharge. 

 Discharge the main structure of the star 

 Star unloader flange mouth is basically a square or round, A is square, B is round, can be selected by the user. 
 Second, resistance to wear closed Rotor and the star discharger is characterized by the end of the shift the child leaves with special wear-resistant materials. To ensure good contact with the blade end of the shell inner wall, and wear can easily adjust the blade end, it still manage a good contact inside the shell, with better air lock performance.