Abstract: In a centrifugal machine, collecting chambers, which are in a rotary bowl allocated to centrifugal separation of at least two phases, include a discharge port that can be opened or closed as desired by pistons, movement of which is controlled from outside by a reduced-friction system. Drawing volume is adjustable and proportional to volume of a transverse aperture in the pistons, the ports and the openings of the collecting chambers being offset. The machine enables pseudo-continuous drawing which makes it possible to maintain a continuous supply. The drawing volume, composition of the drawn product, and compactness thereof, in a case of a near-solid phase, are controlled.

Abstract: The rotary bowl (1) of this centrifugal separator is lined with conical structures divided into sectors (7) separated by angularly offset gaps (9) so as to promote a regular spiral fluid flow therein, which is laminar and enhances separation efficiency significantly: in the case of two-phase or three-phase suspensions, a “cake” is obtained on the side wall (8). A scraper (15) rotating at a slightly different speed may be added to enable simultaneously routing of the solid cake to the outlet and continuous processing.

Abstract: In a centrifugal machine, collecting chambers, which are in a rotary bowl allocated to centrifugal separation of at least two phases, include a discharge port that can be opened or closed as desired by pistons, movement of which is controlled from outside by a reduced-friction system. Drawing volume is adjustable and proportional to volume of a transverse aperture in the pistons, the ports and the openings of the collecting chambers being offset. The machine enables pseudo-continuous drawing which makes it possible to maintain a continuous supply. The drawing volume, composition of the drawn product, and compactness thereof, in a case of a near-solid phase, are controlled.