Venturi powder pump having rotating diffuser

Details Venturi powder pump having rotating diffuser Venturi powder pump having rotating diffuser

B - Operations, Transporting

05

B

302/21

B05B 7/14 (2006.01) B65G 53/14 (2006.01)

Patent

CA 1245251

Abstract of the Disclosure An improved powder pump for pumping air entrained solid particulate powder material comprising a pneumatic conveyor line within which there is located a low pressure venturi pumping chamber. This venturi pumping chamber is intersected by a powder supply passage through which powder is drawn into the conveyor line. Located within the powder supply passage is a rotatable tubular powder diffuser through which the powder passes in the course of passage through the powder supply passage. Rotation of the diffuser is effected by atomizing or metering air flow to the powder flow passage upstream of the venturi pumping chamber. This atomizing air flow, in addition to effecting rotation of the diffuser, also controls the rate of flow of powder through the powder supply passage and into the venturi pumping chamber.

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