Apparatus for continuously withdrawing solids which form a sedim

Details Apparatus for continuously withdrawing solids which form a sedim Apparatus for continuously withdrawing solids which form a sedim

1975-07-07

1977-01-25

Hart, Charles N.

Liquid purification or separation

Particulate material type separator, e.g., ion exchange or...

Gravity flow of particles type

23270R, B01D 1502

Patent

active

040050165

ABSTRACT:
This disclosure pertains to an apparatus within a container wherein solid particles of the type that form a sediment in a liquid, are withdrawn from a liquid-filled processing chamber at the upper side of a funnel-shaped plate into a liquid-filled collecting chamber below the plate. In one embodiment, the funnel-shaped plate includes a central discharge nozzle that forms an annular discharge gap by extending downwardly within the side walls of a bell-shaped chamber that is inverted and contains a mushroom-shaped distributor supported above its bottom wall by a liquid supply pipe. The top surface of the mushroom-shaped distributor has a conical shape with the apex extending upwardly to the terminal end of the discharge nozzle.
In a second embodiment, the annular opening in the funnel-shaped plate contains a cylindrical hood to form an annular space that is closed at its bottom by an oblique wall forming part of a fluid discharge chamber which delivers fluid upwardly along a ring-shaped sleeve that projects into the hood and forms an annular discharge gap therewith for the solid particles that pass downwardly within the sleeve into the underlying collecting chamber.

REFERENCES:
patent: 1861295 (1932-05-01), Bramwell
patent: 2683109 (1954-07-01), Norris
patent: 3137651 (1964-06-01), DeLara et al.
patent: 3715868 (1973-02-01), Biasi
patent: 3738814 (1973-06-01), Cloete et al.

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