| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas-liquid agitation blade capable of acquiring a satisfactory gas absorption performance, i.e., an excellent gas-liquid performance, and capable of being easily applied even to agitation vessels of different depths and sizes.SOLUTION: Blade body parts 2A and 2B which are formed in such a way that a clearance is formed between the confronting faces of a pair of upper and lower blades 2a and 2b and the clearance becomes narrower in the rotational direction of the blades, are attached radially at a plurality of vertical stages to a revolving shaft 3. The blade body parts 2A and 2B of the upper and lower steps are attached at rotational angles different from each other to the revolving shaft 3, and are attached at continuous portions without any axial clearance to the revolving shaft 3. |
