Powder feed hopper

Details Powder feed hopper Powder feed hopper

B - Operations, Transporting

65

G

302/18

B65G 51/00 (2006.01) B05B 7/14 (2006.01) B65G 53/26 (2006.01)

Patent

CA 2038582

POWDER FEED HOPPER Abstract of the Disclosure A powder feed hopper includes a housing which mounts a porous plate adapted to support par- ticulate powder material and receive an upwardly directed flow of fluidizing air to form an air- entrained fluidized bed in the housing above the porous plate. In order to improve fluidization, a baffle plate is mounted beneath the porous plate in the path of the pressurized air discharged from one or more air nozzles to create a circulating flow of air- entrained particulate powder material within the fluidized bed in which the flow moves upwardly along the wall of the housing and then inwardly and down- wardly toward the center of the porous plate. Addi- tionally, stirrer blades are located immediately above the porous plate to create turbulence and reduce the formation of concentrated channels of air atop the porous plate.

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