The impeller feeder, also known as the star discharger (star discharge valve, star discharge valve, electric air lock), can be used in the collection material system, as the discharger of the silo, the star discharger It is the most advanced unloading device in China. It has good sealing performance, stable transmission, durable and reliable, and easy maintenance. It adopts elastic impeller to enhance flexible sealing and works reliably. Bearing service life, easy maintenance. Equipped with cycloid reducer, compact structure, stable and reliable. It is often used in dust removal systems as one of the important equipment of dust removal systems. It is especially suitable for dust, small particles, pneumatic conveying, and is favored by environmental protection, metallurgy, chemical industry, grain, cement, construction, drying equipment and other industrial projects.