| 摘要 |
<p>PURPOSE:To execute aeration of filthy water under stirring securely and uniformly by travelling an self-suction type stirrer with a float automatically by the thrust generated by the driving of the stirrer itself and changing the direction of the thrust to let the stirrer travel back and forth in the tank. CONSTITUTION:Liquid to be treated in an aeration tank 1 is aerated under stirring with a self-suction type stirring device 5 capable of stirring the water by the stream generated by the revolution of a propeller 53d a attached to a foot end of a hollow shaft 53b, dispersing air into the stream utilizing the low pressure part generated at the top end of the hollow shaft 53b. An aerating device 5 supports a inclined hollow shaft 53b and a float 51 floating in the tank 1 and a guide 2 which guides the device 5 moved in the tank 1 by the stream generated by the revolution of a propeller 53d to a specified position, are installed. As the result, aeration under stirring of filthy water is performed securely and uniformly without requiring any other driving device.</p> |
