Powder feed hopper

Details Powder feed hopper Powder feed hopper

1990-04-13

1991-05-28

Peters, Jr., Joseph F.

Conveyors: fluid current

Intake to fluid current conveyor

Load receptacle type

406 89, 406144, B65G 5338, B65G 5318

Patent

active

050189093

ABSTRACT:
A powder feed hopper includes a housing which mounts a porous plate adapted to support particulate 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 downwardly toward the center of the porous plate. Additionally, 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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