| 摘要 |
<p>PURPOSE:To prevent bubbles from flowing and covering on aerator blades to perform stable aeration, by providing a bubble stop ring above and near blades of the surface aeration type aerator. CONSTITUTION:Above aerator blade 7 provided in the position near the draft line of liquid (a) to be subjected to aeration treatment in areation tank 1, bubble stop ring 8 on a short cylinder is suspended near aerator blade 7. Though many bubbles a' are generated when aerator blade 7 is operated, they are jetted to the outside diameter part and are gathered in space 1a of the upper part of the outside diameter part, and they are stopped by bubble stop ring 8 even if they try to flow into the inside diameter part gradually. Consequently, a stable aeration effect can be always obtained.</p> |
