LOCK FEEDER Russian patent published in 2009 - IPC B65G53/46 

FIELD: technological processes.

SUBSTANCE: invention is related to devices for batching of loose materials inclined to arc formation, and may find application in food, construction, pharmaceutical, chemical and other industries. Lock feeder comprises hopper, vessel with loading and unloading nozzles, rotor installed inside vessel, comprising hollow shaft with blades. In shaft wall there are holes that communicate to shaft cavity and rotor cells. Holes in shaft wall are arranged at the angle relative to radial axis of shaft passing through hole. Holes are arranged with reduction of diametre.

EFFECT: invention makes it possible to increase efficiency, improve reliability and accuracy of highly dispersed loose materials batching process.

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