Process for the pneumatic transfer of a pulverulent material

Details Process for the pneumatic transfer of a pulverulent material Process for the pneumatic transfer of a pulverulent material

1979-08-08

1981-05-05

Nase, Jeffrey V.

Conveyors: fluid current

Intake to fluid current conveyor

Movable inlet

406137, 406141, 406152, B65G 5324

Patent

active

042655722

ABSTRACT:
Process for the pneumatic transfer of a pulverulent material contained in a cylindrical container, wherein it comprises the introduction, via a sealed passage located in the upper part and in the axis of the container, of a suction member which is movable in translation along said axis and having at its suction end located in the container an annular nozzle which is able to direct a gas jet towards the walls of the container so as to ensure the scavenging of said walls during suction, the level of said annular nozzle in the container being maintained constantly above the level of the pulverulent material contained therein until all the material has been sucked out, including that on the bottom of the container. The process is performed by an apparatus for the pneumatic transfer of a pulverulent material comprising a cylindrical container containing the pulverulent material and pneumatic extraction duct for emptying the container. As a result of the invention it is possible to extract all the material contained in a container, particularly when the material is of a clogging or tacky nature.

REFERENCES:
patent: 3097017 (1963-07-01), Turner et al.
patent: 3994532 (1976-11-01), Hahn
patent: 4029364 (1977-06-01), Salzer

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