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Star/unloader device also called discharge bar, discharging valve, rotating feeder, lock valves, usually unloading the structures of the star by has several leaves rotor impeller, shell, seal and reducer, electromotor etc.
When the materials by falling weight bin filling the gap between the blade, with the rotation of the blade in discharged, therefore, star feeder can discharge quantitative for discharging. Star/discharge in strength output system feeder commonly used for pressure output system or negative pressure system output. Star feeder can discharge even, continuously to transporting pipe for material. In order to ensure that the strength of the gas and solid output tube is stable, and pneumatic conveying to work, at the same time, and will discharge the place on the lower pressure partition, an air lock function. Therefore, star feeder is unloading pneumatic conveying system used in the important components. It is especially applicable to dust, small particle materials, by the environmental protection, metallurgy, chemical industry, food, cement, building roads, drying equipment industry engineering project select.