A Lifting Inverted Umbrella Surface Aerator

Abstract

The invention provides a lifting type inverse-umbrella-shaped surface aeration machine which comprises an installation bottom plate, an inverse umbrella impeller and a lifting piece. The installation bottom plate is fixed to an installation foundation. A hollow shaft of the inverse umbrella impeller is connected with the lower end of a hollowed shaft in a transmission mode. The hollowed shaft penetrates through the installation bottom plate and is connected with the installation bottom plate through a bearing. The lifting piece is connected with the lower end of a rotating shaft penetrating through the hollow shaft and the hollowed shaft and is arranged below the inverse umbrella impeller. The lifting piece is of a box-shaped structure. A plurality of water flow holes are formed in the bottom of the lifting piece. Water flow hole covers matched with the water flow holes are arranged above the water flow holes. The first ends of the water flow hole covers are connected with the lifting piece in a rotating mode, and the second ends of the water flow hole covers are connected with the first ends of springs, and the second ends of the springs are connected with the inner bottom face of the lifting piece. The rotating shaft penetrates through a guide hole of an auxiliary installation plate, and the upper end of the rotating shaft is connected with a supporting plate. The auxiliary installation plate is installed on the installation bottom plate through a support. The portion, below the supporting plate, of the auxiliary installation plate is connected with a cam in a rotating mode. The surface aeration machine is reasonable in design, simple in structure, sufficient in aeration and large in oxygenation capacity.

Description

technical field [0001] The invention relates to the technical field of sewage treatment equipment, in particular to a lifting type inverted umbrella type surface aerator. Background technique [0002] In the process of sewage treatment, it is necessary to oxygenate the sewage for the growth and reproduction of beneficial bacteria to achieve the purpose of decomposing the organic matter in the sewage. In the prior art, the surface aerator is often used to oxygenate the sewage, and the surface aeration Under the strong propulsion of the impeller, the water is thrown out from the edge of the impeller in the form of a water curtain, forming a water curtain, engulfing a large amount of air, the water circulates up and down, and the liquid level is constantly updated. A large area of ​​sewage is in contact with the air, and the rotation of the impeller drives the water flow. , forming a negative pressure zone, inhaling air, the oxygen in the air quickly dissolves into the sewage, ...

AI Technical Summary

Problems solved by technology

The surface aerator in the prior art is submerged in the water for only 1 meter, which has a poor effect on lifting the sewage at the bottom of the pool, and the water flow velocity at the bottom of the biological pool is low, prone to sedimentation, and the effect of aeration and oxygenation is poor

Images