FEEDER Russian patent published in 2006 - IPC B65G53/46 

FIELD: construction materials production, chemical, food, pharmaceutical and other industries.

SUBSTANCE: invention relates to devices for metering out loose material susceptible to arch forming. Proposed feeder consists of hopper, housing with charging and discharge branch pipes, rotor with perforated blades and hollow shaft, sealing members and filter. Pipe with rectangular form hole in its wall is installed inside shaft. Said hole communicates with holes in rotor blades being directed to side of charging branch pipe. Sealing members are installed between inner wall of shaft and side surface of pipe precluding air passing to blades outside charging branch pipe.

EFFECT: reduced pressure and flow rate of air delivered for arch breaking, reduced dusting of loose material coming out of feeder.

2 cl, 3 dwg