| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a small-sized installation device which installs an underwater stirrer in a sewage treatment tank and which makes lifting posts for moving the stirrer from the outside of the tank to a predetermined position unnecessary. <P>SOLUTION: The installation device 1 is provided with: first horizontal beams 4 laid from one side wall 3A to the other side wall 3B of the sewage tank 3; second horizontal beams 5 crossing with the first beams 4; supporting posts extending downward from the first and second beams 4, 5; and a supporting base provided at the lower end part of the posts. Guide rails with a cross section of a recessed type are formed on the first beams 4. A simple crane 30 loaded with the underwater stirrer travels on the guide rails to move the stirrer from the outside of the tank to a point directly above the installation position. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
