Fluidization kit for pneumatic discharge outlet

Details Fluidization kit for pneumatic discharge outlet Fluidization kit for pneumatic discharge outlet

1988-02-26

1989-11-14

Shaver, Kevin P.

Dispensing

With gas agitation

222189, 55511, 406 90, B65G 6906, B67D 558

Patent

active

048801488

ABSTRACT:
A fluidation kit for retrofit installation on a pneumatic outlet for a railway covered hopper car is disclosed. The outlet includes an outlet pan having downwardly sloping walls. The kit includes at least one air permeable fluidizing membrane on the inside face of the outlet pan wall to fluidize a powdered or pulverant lading. An externally mounted manifold assembly is attached to outside surfaces of the outlet pan for connecting the air permeable fluidizing membranes on the inside surfaces of the downwardly sloping walls of the outlet pan to a source of fluidizing air. The air permeable fluidizing membrane is supported in a peripheral extending frame member which supports the air permeable fluidizing membranes a small predetermined distance above the sloping wall surfaces to provide a plenum therebetween for diffusing fluidizing air throughout the entire extent of the air permeable fluidizing membrane. The air permeable fluidizing membrane is preferably constructed from a woven polypropylene fiber having a desired range of mesh sizes which provides a desired air permeability for fluid pressure unloading of powdered or pulverant ladings.

REFERENCES:
patent: 3305142 (1967-02-01), Caldwell
patent: 3659752 (1972-05-01), Carney, Jr. et al.
patent: 3693839 (1972-09-01), Shaver et al.
patent: 4015751 (1977-04-01), Rollins et al.
patent: 4340402 (1982-07-01), Catron

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