Lifting apparatus for surface aeration systems of sewage treatment plants

摘要

A lifting apparatus for surface aeration systems of sewage treatment plants has a framework (13, 16) in which a holder device (15) can be raised and lowered in a vertical direction, a pivoting device (8) rigidly connected to the surface aeration system, pivotable about a vertical axis of rotation and attached to the holder device (15), a drive device (5) for the raising and lowering of the holder device (15) and an arresting device (11) fixing the pivoting device (8) in at least one position. IMAGE