Fluid flow airlock valve

Details Fluid flow airlock valve Fluid flow airlock valve

1996-10-31

1997-10-14

Kashnikow, Andres

Dispensing

With gas agitation

2224245, B67D 506

Patent

active

056762810

ABSTRACT:
An improved airlock valve is shown which is used to pass a particulate solid from a first pressure environment to a second, different pressure environment. The valve includes an inlet chamber for receiving particulate solids entering at a first pressure and has an outlet chamber for receiving particulate solids passing from the inlet chamber. The outlet chamber has a discharge opening which communicates with a second pressure environment which is different from the first pressure environment. At least one baffle divides the inlet chamber and the outlet chamber. Compressed air is supplied to the lower regions of the inlet and outlet chambers by means of a supply tube having downwardly facing apertures in order to fluidize the particulate solids. The fluidization of the particles causes the solids to pass from the inlet chamber to the outlet chamber and out the discharge opening of the outlet chamber to the second, different pressure environment while maintaining an air tight seal between the inlet and discharge openings.

REFERENCES:
patent: 2316814 (1943-04-01), Schemm
patent: 4017281 (1977-04-01), Johnstone
patent: 4189263 (1980-02-01), Krug, Jr. et al.
patent: 4481022 (1984-11-01), Reier
patent: 5035543 (1991-07-01), Medemblik et al.
patent: 5037067 (1991-08-01), Ray
patent: 5163656 (1992-11-01), Sigmon

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