Centrifugal separator with discharge of separated constituents b

Details Centrifugal separator with discharge of separated constituents b Centrifugal separator with discharge of separated constituents b

1990-08-30

1992-11-03

Dawson, Robert A.

Liquid purification or separation

Automatic control

210368, 2105121, 494 2, 494 5, 494 7, 494 11, 494 26, 494 56, 494 84, B01D 17038, B01D 1712, B04B 902, B04B 1102

Patent

active

051606097

ABSTRACT:
A separator comprises a frame supporting a closed cylindrical drum, a motor for rotating the drum about a central, longitudinal axis, an inlet through which a liquid from which constituents are to be separated is introduced into the drum, and an outlet through which relatively clean liquid is dischargeable from the drum. During the separating process, centrifugal force causes a layer of the heavier constituents to collect on the interior surface of the drum, displacing the relatively clean liquid into an annular layer situated concentrically with and between the constituent layer and the entering volume of liquid, such that the contents of the annular layer is separately dischargeable from the drum in a continuous manner. In order to discharge the collected constituents from the drum, the inlet and outlet are closed and the motor is controlled to impart a braking moment on the rotating drum and thus cause churning of the liquid remaining in the drum so as to aid in removing the collected constituents from the inner surface of the drum and, thereafter, a valve is actuated to discharge the remaining contents from the drum.

REFERENCES:
patent: 1303203 (1916-05-01), Hughes et al.
patent: 1882389 (1932-10-01), MacIsaac
patent: 3167509 (1965-01-01), Steinacker
patent: 3403848 (1968-10-01), Windsor et al.
patent: 3648926 (1972-03-01), Pause
patent: 3861584 (1975-01-01), Dudrey
patent: 3931928 (1976-01-01), Kido
patent: 3990631 (1976-11-01), Schall
patent: 4008856 (1977-02-01), Sears
patent: 4155503 (1979-05-01), Sears
patent: 4406651 (1983-09-01), Dudrey et al.

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