Patent ID: 7083565

Claim:
A solid-bowl screw centrifuge, comprising: a centrifugal drum having a drum casing and a screw, the screw having a screw body surrounded by a screw blade forming at least one screw spiral with a conveying path constructed between the at least one screw spiral for transporting material to be centrifuged; an inlet into the centrifugal drum; at least one solid matter discharge; at least one liquid outlet; a drum chamber axially closed by a drum cover having essentially a conical shape; a disk stack having at least one conical disk, the disk stack being mounted to the drum cover directly upstream of the liquid outlet and at least a portion of the disk stack being arranged in a cylindrical section of the drum chamber that has an essentially constant diameter; and a screw disk arranged on the screw body between the drum cover and a first screw spiral of the at least one screw spiral, the screw disk having an interior section and a conical exterior section.