Patent ID: 8702576

Claim:
A nozzle centrifuge that adjusts a radial position of an interface layer in the nozzle centrifuge for separating a light phase liquid having a relatively low density and a heavy phase liquid having a relatively high density from a mixture containing the light phase liquid, the heavy phase liquid, and a solid, the nozzle centrifuge comprising: a rotor, said rotor being rotatable around a rotational axis and forming an inlet for said mixture; a separating chamber communicating with said inlet and having a radially inner part and a radially outer part; nozzles at the separating chamber distributed around the rotational axis, said nozzles being unblocked and continuously open to throw out the heavy phase liquid and the solid during operation of the nozzle centrifuge; an outlet for discharging the light phase liquid; an overflow outlet being radially delimited by a cover or level ring for discharging the heavy phase liquid; an inlet for supplying additional heavy phase liquid to the separating chamber; and a sensor, said sensor being arranged in a flow path of the heavy phase liquid leaving the separating chamber for monitoring the magnitude of the flow and transmitting a corresponding signal, wherein supply of the additional heavy phase liquid via the inlet is adjusted in reply to the signal to maintain the interface layer at a predetermined radial level.