Multi-shaft screw-type extruder, in particular twin-shaft extruder

Abstract From the Canadian patent

A multi-shaft screw-type extruder comprises - a casing;, - two parallel and partially intersecting casing bores; - two shafts disposed in the casing bores and drivable to rotate in the same direction;, - screw elements non-rotatably mounted on the shafts; and intermeshing kneading disks, which are non-rotatably mounted on the shafts and the respective crest portions of which are reduced in relation to the disk width for mixing-and-scraping-studs to form which are, located on the periphery. The mixing-and-scraping-studs on each kneading disk are axially misaligned relative to each other such that their peripheral faying surfaces jointly cover the entire disk width.