Chemistry: physical processes
Patent
1977-12-27
1979-03-06
Krizmanich, George H.
Chemistry: physical processes
B04B 120
Patent
active
041426690
ABSTRACT:
In a continuously operating centrifugal separator of the kind comprising a bowl which rotates at a high speed and a conveyor screw which rotates at a slightly different speed within the bowl and co-axially thereto in such manner as to move the solid phase separated against the inner wall of the bowl, towards solid discharge ports provided adjacent the smaller base of a frusto-conical end portion of the bowl, at a lower radial distance from the axis of the machine than liquid discharge ports located adjacent the periphery of the other end of the bowl and which determine the formation within the bowl of a rotating liquid mass or pond having a cylindrical inner surface, the liquid product to be treated being fed axially into an inner chamber of the hollow hub of the conveyor screw from which it flows toward the annular space provided between the said hub and the inner periphery of the bowl through generally radial feed channels located about midway of the ends of the bowl, these feed channels open substantially tangentially and forwardly with respect to the rotation of the conveyor screw, with their outlets close to, but still spaced from the inner surface of the rotating liquid pond. In a preferred embodiment these outlets are formed of right angle elbows fixed to the periphery of the hub and they are directed parallel to the adjacent turns of the conveyor.
REFERENCES:
patent: 3368747 (1968-02-01), Lavanchy et al.
patent: 3568919 (1971-03-01), Nielsen
patent: 3854658 (1974-12-01), Probstmeyer
Krizmanich George H.
Robatel S.L.P.I.
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