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A surface aeration device of a rigid-flexible combined aeration tank

A technology of surface aeration and surface aerator, applied in chemical instruments and methods, water/sludge/sewage treatment, biological water/sewage treatment, etc., can solve the problem of insufficient aeration capacity of aeration devices and water circulation in aeration tanks Problems such as poor flow force and easy clogging of small aeration holes achieve the effect of enhancing water circulation flow capacity, simple structure, and reducing additional equipment

Active Publication Date: 2020-12-11
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical problem: The object of the present invention is to provide a surface aeration device of a rigid-flexible combined aeration tank to solve the problem of insufficient aeration capacity of the aeration device in the prior art, the need for an additional aeration fan, easy blockage of the aeration holes, and the aeration problem. Problems such as poor water circulation in the air pool, uneven mixing, and low oxygen utilization

Method used

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  • A surface aeration device of a rigid-flexible combined aeration tank
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  • A surface aeration device of a rigid-flexible combined aeration tank

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Experimental program
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Embodiment 1

[0036] For the surface aeration device of the rigid-flexible combined aeration tank, see figure 1 , 2 , the number of connecting shafts 2 of the surface aeration device is 2, the connecting shaft and the rigid blade 3-1 are 90°, and the rigid blade 3-1 is square and welded on the connecting shaft 1; the rigid blade connected on the connecting shaft 2 The number of 3-1 is 5, and the rigid blades 3-1 are evenly distributed; the flexible blade 3-2 is screwed to the rigid blade 3-1, and the height of the flexible blade 3-2 is 1.6 times that of the rigid blade 3-1. The flexible blade 3-2 is made of polyvinyl chloride material.

[0037] The transmission device is connected to the middle part of one side of the support frame 4 of the surface aeration device. Driven by the motor, the transmission device drives the aeration device to move back and forth on the slide rail 1 at a constant speed of 0.7m / s. In order to ensure the stability of the aeration device during movement, the on...

Embodiment 2

[0040] Using the same connecting shaft 2 and the number of blades as in embodiment 1, the same connection method as in embodiment 1 is adopted between blades and between blades and connecting shafts, and the flexible blade 3-2 is made of polyvinyl chloride material. The rigid blades 3-1 have a curved three-curved shape, and the rigid blades 3-1 are uniformly distributed; the height of the flexible blades 3-2 is 1.5 times that of the rigid blades 3-1. Working process and operating conditions of the present invention are consistent with embodiment 1.

Embodiment 3

[0042] Adopt the same connecting shaft 2 and the number of blades as in embodiment 1, and adopt the same connection mode as in embodiment 1 between blades and between blades and connecting shafts. The rigid blades 3-1 are square, and the rigid blades 3-1 are uniformly distributed; the height of the flexible blades 3-2 is 1.6 times that of the rigid blades 3-1. The transmission device is connected to the middle part of one side of the support frame 4 of the surface aeration device. Driven by the motor, the transmission device drives the aeration device to move back and forth on the slide rail 1 at a constant speed of 1.0m / s. Working process of the present invention and not mentioning operating conditions are consistent with embodiment 1.

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Abstract

The invention provides a rigid combined-type aeration tank surface aeration apparatus. The apparatus comprises a hollow aeration tank (6), slide rails (1) oppositely and parallelly arranged at the opening of the aeration tank (6), a support frame (4) arranged on the slide rails (1), connection shafts (2) for connecting the support frame (4), surface aerators (3) arranged in the support frame (4) and perpendicular to the slide rails (1), and a transmission gear (5) arranged on the slide rail. In comparison with the prior art, the invention has the following beneficial effects: through oscillating of the transmission gear (5), rigid blades (3-1) are driven to interact with the liquid level and gas above the liquid level is automatically inhaled below the liquid, thus enhancing the efficiency of mixing the air and the liquid inside the aeration tank (6) and realizing efficient mixing of oxygen and the liquid.

Description

technical field [0001] The invention relates to an aeration device technology for an aeration tank, and belongs to the technical field of rigid-flexible combined aeration tank surface aeration devices. Background technique [0002] At present, the activated sludge method is widely used in my country to treat sewage. The technological process is to adjust and distribute the sewage, adjust the pH, decontaminate the sediment, adjust the content of phosphorus and nitrogen, etc., and then enter the aeration tank together with the return sludge, and use aeration pool for sewage treatment. A certain sewage residence time is provided in the aeration tank to meet the mixing conditions of oxygen required by aerobic microorganisms and full contact with activated sludge. The aeration tank is mainly composed of three parts: the tank body, the aeration cylinder and the water inlet and outlet. Aeration methods mainly include blast aeration and mechanical aeration. [0003] Blast aeration...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/18
CPCC02F3/18Y02W10/10
Inventor 骆培成张月乔丁莉王耀华
Owner SOUTHEAST UNIV