Abstract: A rotating bowl decanter centrifuge including a clarifier section and a beach section for separating a lighter phase from a heavier phase. The beach section includes a conveyor for conveying the heavier phase toward the exterior of the centrifuge. The centrifuge is without a conveyor in the effluent discharge end of the clarifier section. In a preferred embodiment, the clarifier section has an outward incline angle so that the clarifier wall bends away from the bowl's rotational axis. The beach section includes an inwardly inclined outer wall which bends towards the rotational axis of the bowl. It is preferred that the outward incline angle in the clarifier section be on the order of 5.degree. or less.

Abstract: A centrifuge bowl head including a bowl head plate, a bowl spoke attached to an outer circumference of the bowl plate, and a bowl spoke plow attached to the bowl spoke, the bowl spoke plow impinging upon a wearing material at an angle less than seventy-five degrees.A bowl head further including a bowl head plow connected to the bowl head plate, the bowl spoke plow having an additional directing angle, the bowl spoke plow being of unitary construction and the bowl spokes defining discharge ports, the area of the bowl spokes forming a ratio with the area of the discharge ports to allow material under the bowl spokes to have an included angle of 120 degrees or less.