| 摘要 |
<p>PURPOSE:To alleviate the work of maintenance, while preventing clogging caused by a change with time, by providing a plurality of blades for dividing an annular space between an outer cylinder and a strut into oblique parts and shearing rods at several stages projecting into the annular space above the blades. CONSTITUTION:A strut 7 is provided inside an outer cylinder 6, and tightened and fixed with a rod 10 and nuts. Air from a blower 3 is introduced into the hollow part of the strut 7 at its lower end and discharged through air-supply holes 7a. Each of four blades 8 is attached with inclination of 45 deg. to an upper part near the air-supply holes 7a, and an annular part between the strut 7 and the outer cylinder 6 is divided into four chambers by the blades 8. Shearing rods 9 are provided at proper stages with right angles to the further upper parts of the strut 7, so that the turning-ascending stream of water mixed with air is agitated into the mixed body of gas-liquid in which fine gas bubbles are mixed by the action of the rods 9. Said stream is revolved and lifted through the annular part between the outer cylinder 6 and the strut 7, and then drained through the top end of the outer cylinder 6.</p> |
