Apparatus for use in producing droplets

Details Apparatus for use in producing droplets Apparatus for use in producing droplets

1977-08-02

1979-05-15

Scherbel, David A.

Dispensing

Drop formers

264 9, 264 13, B01J 204

Patent

active

041543793

ABSTRACT:
A system for producing droplets of a liquid, particularly for pelletizing the material. The liquid is delivered under a controlled pressure to a relatively shallow horizontal chamber, the lower wall of which is a plate having nozzles therein and the top wall of which is formed by a flexible diaphragm. There is a chamber above the flexible diaphragm which contains oil and connects through its top wall to a chamber of variable volume having a bellows side wall construction and a movable top wall. The oil also fills that chamber so that when the movable top wall is pushed downwardly, a uniform pressure is exerted on the diaphragm so as to press it downwardly and to cause a drop of the liquid to be discharged from each of the nozzle. The movable top wall is vibrated or oscillated vertically so as to produce a continuous series of droplets from each nozzle. The droplets can be solidified by falling through a heat transfer gas or by falling onto a steel belt conveyor which is cooled on its underside by a brine spray.

REFERENCES:
patent: 1878220 (1932-09-01), Willshaw et al.
patent: 2931067 (1960-04-01), Delaloye et al.
patent: 4030640 (1977-06-01), Citrin et al.

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