A centrifuge system includes a centrifuge and a feed line fluidly connected to centrifuge with the centrifuge driven by a hydraulic system. The hydraulic system includes an electric motor driving a hydraulic pump connected to a fluid reservoir with the hydraulic pump providing hydraulic fluid to one or more hydraulic motors which in turn rotate the centrifuge. The system includes a pressure sensor for measuring fluid pressure and a speed sensor for measuring the rotational speed of the centrifuge. A controller can be in communication with the hydraulic system and the sensors and can receive measurements from the sensors and adjust the pressure of hydraulic fluid flowing to the one or more hydraulic motors to maintain a rotational speed of the centrifuge based on differing loads. The system can include one or more valves, controlled by the controller, which can also adjust the hydraulic pressure of the system.

A centrifuge system includes an inlet fluid conduit to receive a flow of raw fluid, an outlet fluid conduit to receive a flow of effluent fluid, an effluent sensor to determine a density of the effluent fluid, a centrifuge including an inlet to receive the raw fluid, an effluent outlet to discharge the effluent fluid, and a solids outlet configured to discharge solids separated from the raw fluid by the centrifuge, a feed pump to pump the raw fluid to the inlet of the centrifuge at a selected flowrate, and a controller to automatically adjust at least one of a speed of the feed pump, a rotational speed of a bowl of the centrifuge about a rotational axis, and a rotational speed of a conveyor of the centrifuge about the rotational axis in response to a change in the density of the effluent fluid as determined by the effluent sensor.

Decanter centrifuges and associated acceleration pipes and methods are provided. In accordance with an example, an acceleration pipe for use with a decanter centrifuge including a feed pipe and a screw conveyor having an acceleration chamber includes an acceleration pipe body adapted to be coupled to and rotate with the screw conveyor. The acceleration pipe body includes an acceleration pipe inlet and an acceleration pipe outlet. The acceleration pipe body defines an acceleration pipe flow path extending between the acceleration pipe inlet and the acceleration pipe outlet. The acceleration pipe body is adapted to receive a suspension at the acceleration pipe inlet from the feed pipe and to rotate the suspension, based on a corresponding rotation of the screw conveyor, prior to the suspension exiting the acceleration pipe outlet and being received by the acceleration chamber of the screw conveyor.