Method and device for measuring the filtrate content on a screw press
AssigneeAndritz Inc.
InventorsMarkus Egger, Franco Pichler, Daniel Stelzer, Stefan Willberger
Life of this patent
Estimating the term…
Abstract
The invention relates to a screw press for separating filtrate from a feed material. It is characterised in that a sensor arrangement comprising a sensor for measuring the filtrate content is arranged in the discharge area, the feed material flowing towards and/or around the sensor. This allows simple, prompt, and accurate measurement of the filtrate content.
Claims13
A screw press (1) for separating filtrate from a feed material, comprising a feed area (2), a dewatering area (3) and a discharge area (4), where the feed material can be fed to the screw press (1) via the feed area (2), the dewatering area (3) comprises a pressing screw (6) arranged in a filter drum (5) so as to be rotatable around an axis of rotation (13) and, by rotation of the pressing screw (6), the feed material can be fed from the feed area (2) via the dewatering area (3) to the discharge area (4), where the feed material is guided in the dewatering area (3) between the filter drum (5) and the pressing screw (6), the filtrate can be separated through the filter drum (5), and a sensor arrangement (9) comprising a sensor (7) for measuring the filtrate content is arranged in the discharge area (4), where the feed material can flow against or around the sensor (7), wherein a pressure acting on the sensor (7) from the feed material can be compensated via the sensor arrangement (9), where the sensor arrangement (9) comprises a guide (10) and the sensor (7) can be moved by means of the guide (10) in the discharge area (4) to compensate for the pressure acting on the sensor (7) from the feed material.
Dependencies are inferred from the claim text.