Centrifuge with ejector for solids

US6547972B1 · kind B1 · utility

Assignee

• FERRUM AG · CH

Inventors

• Werner Stahl · Heimstetten, DE
• Harald Reinach · Remetschwiel, DE

Key dates

• Filing date: Nov 14, 2001
• Grant date: Apr 15, 2003
• Expiry date: Nov 14, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B04B3/02
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a centrifuge comprising a rotating drum (1) and comprising an ejection element (2) which rotates together with the drum in order to eject a cake (3) of solids, which is deposited on the inner side of the drum, in the axial direction (4). The ejection element (2) has a helix (5) which extends over the length of the drum. The helix (5) and the drum (1) are kinematically connected in such a manner that a reference point (A) at the circumference of the helix executes a rotational movement relative to the drum in the form of a sawtooth line (6, 8), with a first flank (7) of the sawteeth (8) corresponding approximately in its inclination (&agr;) to the pitch (&bgr;) of the helix whereas a second flank (9) of the sawteeth (8) corresponds to an approximately axial ejection movement.