Inversed umbrella type composite impeller surface aeration machine

A technology of surface aerator and composite impeller, applied in water aeration, sustainable biological treatment, water/sludge/sewage treatment, etc., can solve low power efficiency, poor aeration effect, high energy consumption cost high or low

Active Publication Date: 2005-08-24
中冶生态环保集团有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

Because the blades can only push and rotate the water, the impact of the blades on the water causes bubbles to break up and the flow direction is disordered. When the dissolved oxygen on the surface reaches a certain value, it is difficult to increase it, resulting in poor aeration effect and low power efficiency. Generally, it can only reach 1.6-2.4kgO 2 / kW h, the highest can only reach 2.5-2.6kgO 2 / kW h, so that the cost of energy consumption in the cost of urban sewage treatment in my country remains high

Method used

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  • Inversed umbrella type composite impeller surface aeration machine
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  • Inversed umbrella type composite impeller surface aeration machine

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Embodiment Construction

[0015] exist figure 1 Among them, the inverted umbrella type composite impeller surface aerator, which is fixedly connected by the motor and reducer 1 and the transmission connector 2, the coupling 8 at the lower end of the transmission connector 2 is connected with the impeller body 3, and the impeller body 3 is an inverted umbrella , is made up of skeleton supporting surface 4 and cone, and the top angle of cone is 120-150 degree. The blades 5 are radially fixed on the concave and convex surfaces of the cone of the impeller body 3, and can be fixed by welding, riveting or bolts. The transmission connector 2 includes a shaft coupling 8. The lower end of the shaft coupling 8 is located in the central through hole of the impeller body 3. The diameter of the central through hole is greater than the diameter of the lower end of the shaft coupling 8. The outer peripheral surface of the coupling 8 is connected to the impeller A plurality of rotating blades are evenly fixed between...

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Abstract

A surface aerating machine with reverse umbrella type compoiste blade wheel for filling O2 in water is composed of motor, drive shaft, blade wheel with radial blades and air sucking holes, and radial air-liquid mixing tubes with air inlet communicated to said air sucking hole.

Description

technical field [0001] The invention relates to an inverted umbrella type composite impeller surface aerator for sewage treatment. Background technique [0002] The inverted umbrella surface aerator is the key equipment used in the oxidation ditch of the urban sewage treatment project. All the impellers of the traditional inverted umbrella surface aerator are shaped like a paper umbrella opened upside down and installed in the oxidation ditch The surface of the water is driven by mechanical deceleration to rotate, relying on several blades on the impeller to scrape water and push the flow to wrap the air and dissolve the oxidized organic matter in the water to achieve the purpose of water purification. Because the blades can only push and rotate the water, the impact of the blades on the water causes bubbles to break up and the flow direction is disordered. When the dissolved oxygen on the surface reaches a certain value, it is difficult to increase it, resulting in poor aer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F7/00
CPCY02W10/10
Inventor 张鑫珩
Owner 中冶生态环保集团有限公司
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