Verfahren für das Filtern einer Flüssigkeit und Drehfilter zur Ausführung des Verfahrens

摘要

A rotary filter machine has a rotary drum with a perforated peripheral wall supported on a horizontal shaft and extending into a tank adapted to contain slurry to be filtered. A continuous flexible filter paper sheet is continuously led from a source of supply to the drum, wound around the drum so as to travel with the drum through the slurry to be filtered and then stripped from the drum. Suction in the drum draws the liquid from the slurry through the filter paper sheet, and through the perforated peripheral wall of the drum to the interior of the drum and is conducted away from the machine. The solids filtered out of the slurry are entrapped in and on the filter paper sheet and are carried away from the machine with the paper sheet for disposal after stripping from the drum.