Andritz Ag

Wolfgang Magor

Peter Scheucher

Hubert Riemer

Rudolf Stadlauer

Daniel Stelzer

Markus Egger

Roland Kanzler

Peter Ortner

Johannes Knafl

Erwin Buchberger

Roland Zuschnig

The invention relates to a screw press () comprising a shaft () and a spiral helix () provided thereon, wherein the helix () goes over in the inlet region () of the screw press () into a freely projecting helix (). It is principally characterized in that a tube () is provided in the inlet region () of the screw press (). As a result, on the one hand the screen area can be increased greatly in size, on the other hand the co-rotation of the suspension with the shaft can be reduced or avoided.

Screw press

Screw press, preferably for removing liquid from a material to be conveyed, comprising a screw shaft () complete with a helical conveying flight () mounted on the screw shaft () and a housing shell () surrounding it, where a transport channel () is formed for the material to be conveyed between the screw shaft (), the conveying flight (), and the housing shell (). In order to prevent conveyed material components from adhering to the screw shaft (), and thus uneven filling of the transport channel (), the invention provides for the screw shaft () to have a surface profile (), at least in one section of the transport channel ().

Screw shaft surface

Growing community of inventors

Kumberg, Austria

Wolfgang Magor