Screw-type solid bowl centrifuge

A screw-type solid-bowl centrifuge comprising,

• a rotatable drum including a tapering portion and a cylindrical portion;
• a rotatable screw having a screw body;
• at least one main screw blade surrounding the screw body and forming a plurality of screw flights, the plurality of screw flights forming a conveying path configured to transport a material to be processed in the centrifuge;
• two blade segments being arranged in the conveying path in portions of the plurality of screw flights;
• the at least one main screw blade being provided in a region of the blade segments that includes clearances configured to allow a throughflow of the material to be processed to flow between adjacent screw flights of the plurality of screw flights;
• the two blade segments being further arranged in only a first and a second of the plurality of screw flights;
• wherein a first of the two blade segments in the first screw flight lying nearer the tapering portion than the second screw flight,
• the first of the two blade segments being configured to be turned forward in relation to the at least one main screw blade;
• and
• a second of the two blade segments in the second screw flight located in a direction axially further away from the tapering portion than the first screw flight is formed in a plane substantially parallel to a plane of the at least one main screw blade.