| 摘要 |
An apparatus for mixing gas with liquid comprising: (a) an inner cylindrical member comprising an elongated tube having upper and lower ends and a plurality or turbines, which are free to rotate about their longitudinal axis, mounted within the tube, the turbines being spaced apart from one another and so constructed that adjacent turbines have different rotational direction or velocity; (b) optionally, an outer cylindrical member comprising an elongated tube having upper and lower ends and a plurality of openings in the lower half of the tube wall; (c) a base member to which the lower ends of the outer and inner cylindrical members are attached so that the lower ends are sealed, the outer and inner cylindrical members being arranged in a concentric manner; and (d) a gas inlet pipe for introducing gas bubbles into the apparatus. The apparatus is useful for aerating sludge, separating the lower end of the fine particles contained in a slurry, and separating particles having smooth surfaces from particles having jagged surfaces. Problems regarding plugging and tangling of the turbines with foreign materials are eliminated. |
