Venturi powder pump having rotating diffuser

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

1985-06-12

1986-05-06

Nase, Jeffrey V.

Conveyors: fluid current

Intake to fluid current conveyor

Upstream of suction source

137888, 239311, 239405, 366165, 366280, 406138, 406142, 406191, B65G 5314

Patent

active

045868549

ABSTRACT:
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.

REFERENCES:
patent: 3030152 (1962-04-01), Hoshino
patent: 3746254 (1973-07-01), Duncan et al.
patent: 3870375 (1975-03-01), Duncan et al.

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