Patent ID: 6908423
Filing Date: 2005-06-21
Classification: B04B,Y10S

Abstract:
1. A screw for a solid-bowl screw-type centrifuge, comprising: a screw body; at least one screw blade surrounding the screw body several times and forming several screw spirals; a delivery path formed between the screw spirals for conveying material to be centrifuged; blade segments arranged in the delivery path between adjacent screw spirals; recesses in the at least one screw blade constructed such that the material to be centrifuged can flow through between adjacent screw spirals; wherein a cylindrical section of the screw body includes a first portion having at least one screw spiral without recesses and blade segments, and a second portion having at least one screw spiral with recesses and blade segments; and wherein the second portion of the cylindrical section with the recesses and the blade segments extends to a conically tapering section of the screw body but not into it.