Method for raising fluid materials has a spiral tube on a rotating cylinder with a ventilation opening to exclude air pockets

摘要

A cylinder (1), rotating about an axis (3), has a flexible tube (2) spirally wound round the outer surface with one end (5) in a container (7) of liquid or flowable material and the upper end (6) above a receiving vessel (9). A vent hole (11) is positioned above the maximum fluid level (8).