| 摘要 |
An agitation device for wastewater treatment is provided to agitate uniformly a fluid within a reaction tank even at high and low rotation speeds without dead pockets, supply oxygen into the fluid, improve the agitation efficiency of the fluid, obtain excellent treatment capability of wastewater compared with other agitation devices, reduce the treatment cost accordingly, and simply manufacture an agitation device that is defectless and used consistently for a long time. An agitation device(1) for wastewater treatment comprises a casing(100), a main agitation part(200) installed on an inner peripheral surface of the casing, and a motor connecting part(300) for connecting a motor to a second agitation part(10) installed on an outer face of the casing. The casing is formed in a trumpet shape and has an inclined plate(120) formed on an upper end thereof and inclined upward such that fluid pulled up from the respective agitation parts is discharged along the inclined plate. The main agitation part includes a plurality of main vanes(220). The main vanes each has an inlet(240) formed on a bottom side thereof and an outlet(260) formed between the inclined plate and the inlet. The second agitation part includes a plurality of second vanes(20). The second vanes each has an inlet(22) formed on a bottom side thereof and an outlet(24) formed between the inclined plate and the inlet. The motor connecting part includes a circular plate(320) fixed by fixing pins(322) installed on the main vanes, a reinforcement member(340) of which one end is fixed to the circular plate, and of which the other end is installed toward a central part of the circular plate, and a bearing member(360) formed on the central part of the circular plate and fixed by the reinforcement member. |
