Chain-type rotary discharge valves are large-scale rotary discharger devices. Star-type ash discharge valves are classified into round star-type ash discharge valves and square star-type ash discharge valves based on their external structure. Their advantages include: stable and reliable operation, uniform and accurate discharge, optimized structure, compact size, excellent sealing performance, easy maintenance, lightweight and energy-saving, long service life, etc. They are also indispensable equipment in drying, dust, particle, and solid material conveying systems. This valve is installed at the ash discharge outlet of dust collector hoppers,,and is widely used in feeding and ash discharge systems in industries such as chemical, metallurgy, mining, cement, dust removal, environmental protection, power, and grain. Customized non-standard star-type ash discharge valves are also available according to customer requirements.

Star-type ash discharge valves rely on the gravity of the material and the forced action of the feeder's working mechanism to discharge materials from the silo and continuously and uniformly feed them into the next device. The star-type ash discharge valve mainly consists of a motor, reducer, housing, impeller, main shaft, bearings, and left and right end covers. It adopts a high-quality steel plate welded structure, with wear-resistant blades, integrating the transmission device, drive shaft, and blades into one unit. Since the bearings and reducer of the star-type ash discharge valve protrude outward, they prevent dust from entering the bearings and avoid jamming by large particles. During operation, the geared motor drives the impeller to rotate via a coupling, evenly conveying the material from the upper part of the housing to the lower part, where it is transported away by the next device. Therefore, the star-type ash discharge valve can only be installed vertically and is not allowed to be installed horizontally. The upper part of the feeder must maintain a certain material column.

This valve is also known as a star-shaped ash discharge valve, star-type discharger, or rotary feeder. It consists of a valve body, drive shaft, blades, and reducer, among other components. The geared motor drives the drive shaft and impeller to rotate, achieving the purpose of ash discharge. It features wear-resistant blades, high airlock performance, thorough discharge, smooth connection, and compact structure. The elastic impeller feeder uses an elastic rotor for better sealing, ensuring uniform feeding. Chain-type rotary discharge valves are large-scale rotary discharger devices.