Extruder used for removing liquids from solid-liquid mixtures, especially fiber suspension comprises a casing divided into segments, a rotating screw, a hollow shaft, and a suspension feed region

摘要

Extruder comprises a casing divided into segments; a rotating screw; a hollow shaft; and a suspension feed region. A filtrate casing is also provided directly on one or more sieving baskets and run-off openings (6) are provided in the lowermost region. Preferred Features: The extruder has a filtrate sink (3) divided into several zones each having different filtrate overflows. The run-off openings are formed as holes. A perforated plate (4) is provided to adjust the profile of the run-off..