| abstract |
The invention relates to hyperboloid stirring bodies for circulating liquids, in particular water, waste water or the like, in the center of which a connection section (2) is provided for connection to a hollow stirring shaft (1) characterized, that the hyperboloid stirring body is designed as a hollow body, a central opening (3) for supplying air being provided in the connecting section (2), and that an air distribution device (9, 10, 11) is provided downstream of the opening (3) for distributing air supplied through the opening (3) to a plurality of air outlet openings (14) provided in the hollow body. |