| 摘要 |
The invention relates to an apparatus for introducing a gaseous medium, especially air and exhaust gases, into a liquid medium, especially into water and waste waters, comprising a tank which accommodates a cylindrical hollow body which is rotatable about a horizontal central axis, partially projects from the filled tank part and is provided with discs which run radially perpendicular to the axis of rotation and are disposed one behind the other in the longitudinal direction of the axis of rotation, and is further provided with webs which are arranged on the discs, run outwards from the axis of rotation and extend in the longitudinal direction of the axis of rotation so as to form reaction chambers with adjacent webs of adjacent discs, the webs, on their front side seen in the direction of rotation, pointing downwards in the outer region in the submersed position. The object of the invention is to provide an apparatus of the type mentioned in which, achieving approximately the same degree of reaction as in the apparatus disclosed by DE-OS 3140472, production and assembly can be simplified and the amount of material can be considerably reduced. The object is achieved in that the webs (8 to 11, 24 to 27) are formed by indentations (24 to 27, 8 to 11) sunk into each disc (22) from the side facing away from the webs, and the webs (8 to 11) on the one side of each disc (22) are ... with respect to the webs (24 to 27) on the other side of the same disc (22) by an angle of rotation (a) ... Original abstract incomplete. <IMAGE>
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