A sewage treatment aeration device

Abstract

The utility model discloses sewage treatment equipment technical field's a sewage treatment aeration device, including gas -liquid mixer, the bottom one side of gas -liquid mixer is connected with the air inlet pipe, the top of gas -liquid mixer is provided with aeration disc, the aeration disc is coniform, the bottom surface ring of aeration disc is connected and is installed with a plurality of aeration branch pipes, the upper surface of aeration disc is provided with multiple groups of air holes, after compressed air passes through vertical flow guide plate and rotates the flow guide plate, gas is spiral ascending airflow and the bubble generator in gas -liquid mixer is broken into fine bubble, fine bubble is inhaled again with liquid in gas -liquid mixer inside fully mixed spiral and enters the inner aeration disc from aeration branch pipe and sprays, can form the circulation flow around gas -liquid mixer, has increased the detention time of microbubble in water, thereby has improved the utilization of oxygen greatly.

Description

Technical Field

[0001] This utility model belongs to the technical field of sewage treatment equipment, and specifically relates to a sewage treatment aeration device. Background Technology

[0002] In the wastewater treatment process, certain methods and equipment are used to forcibly introduce air into the wastewater, allowing the wastewater to come into contact with the air and become oxygenated. This also agitates the liquid, accelerating the transfer of oxygen from the air into the liquid, preventing suspended matter from settling, and enhancing the contact between organic matter, microorganisms, and dissolved oxygen in the wastewater. This process of forcibly increasing oxygen in wastewater is called aeration. Wastewater treatment aeration devices are key equipment used in the wastewater treatment process. They are mainly used to provide oxygen to promote the growth of microorganisms and the degradation of organic matter in the wastewater.

[0003] Existing wastewater treatment aeration devices have an oxygen utilization rate of only 15-25%, and uneven bubble distribution leads to large fluctuations in dissolved oxygen concentration, resulting in unstable effluent quality and reduced device effectiveness. Therefore, we propose a wastewater treatment aeration device. Utility Model Content

[0004] The purpose of this invention is to provide a wastewater treatment aeration device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sewage treatment aeration device, including a gas-liquid mixer, an air inlet pipe connected to one side of the bottom of the gas-liquid mixer, an aeration disc provided at the top of the gas-liquid mixer, the aeration disc being conical, a plurality of aeration branch pipes being connected and installed in a ring on the bottom surface of the aeration disc, and a plurality of air holes being opened on the upper surface of the aeration disc.

[0006] Preferably, a vertical guide plate is installed on the lower inner side of the gas-liquid mixer near the air inlet pipe.

[0007] Preferably, the end of the air intake pipe is fixedly connected to a mounting plate, and the surface of the mounting plate is evenly provided with multiple sets of positioning holes in a circumferential direction.

[0008] Preferably, the gas-liquid mixer has a rotating guide plate on its inner side, and the rotating guide plate is located above the vertical guide plate.

[0009] Preferably, multiple sets of bubble generators are evenly distributed on the inner side of the gas-liquid mixer near the aeration plate.

[0010] Preferably, a threaded column is fixedly installed at the top of the gas-liquid mixer, a cap is installed at the bottom of the aeration disc, a sealing gasket is installed at the bottom of the cap, and the cap and the threaded column are connected by a threaded rotation.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. After compressed air passes through the vertical and rotating guide plates, the gas rises in a spiral and is broken into microbubbles by the bubble generator in the gas-liquid mixer. The microbubbles are then fully mixed with the sucked-in liquid inside the gas-liquid mixer and spiral into the aeration disc, where they are ejected from the aeration branch pipe. This creates a circulating flow around the gas-liquid mixer, increasing the residence time of the microbubbles in the water and thus greatly improving the oxygen utilization rate.

[0012] 2. By setting multiple sets of small toothed aeration branch pipes, the air resistance is increased, the direction of aeration is changed and diffused, the aeration area is increased, and the effect of the device is improved. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the top structure of the gas-liquid mixer of this utility model; Figure 3 This is a schematic diagram of the internal cross-sectional structure of the gas-liquid mixer of this utility model; Figure 4 This is a top view of the structure of this utility model.

[0014] In the diagram: 1. Gas-liquid mixer; 2. Air inlet pipe; 3. Mounting plate; 4. Positioning hole; 5. Threaded post; 6. Screw cap; 8. Aeration plate; 7. Sealing gasket; 9. Aeration branch pipe; 10. Air hole; 11. Vertical guide plate; 12. Rotating guide plate; 13. Bubble generator. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 This utility model provides a technical solution: a sewage treatment aeration device, including a gas-liquid mixer 1, an air inlet pipe 2 connected to one side of the bottom of the gas-liquid mixer 1, an aeration disc 8 set at the top of the gas-liquid mixer 1, the aeration disc 8 being conical, a plurality of aeration branch pipes 9 being connected and installed in a ring on the bottom surface of the aeration disc 8, and a plurality of air holes 10 being opened on the upper surface of the aeration disc 8.

[0017] Specifically, a vertical guide plate 11 is installed on the lower inner side of the gas-liquid mixer 1 near the air inlet pipe 2.

[0018] Specifically, the end of the intake pipe 2 is fixedly connected to the mounting plate 3, and the surface of the mounting plate 3 is evenly provided with multiple sets of positioning holes 4.

[0019] Specifically, a rotating guide plate 12 is provided on the inner side of the gas-liquid mixer 1, and the rotating guide plate 12 is located above the vertical guide plate 11.

[0020] Specifically, multiple sets of bubble generators 13 are evenly distributed on the inner side of the gas-liquid mixer 1 near the aeration disc 8.

[0021] Specifically, a threaded column 5 is fixedly installed at the top of the gas-liquid mixer 1, and a cap 6 is installed at the bottom of the aeration disc 8. A sealing gasket 7 is installed at the bottom of the cap 6, and the cap 6 and the threaded column 5 are connected by a threaded rotation.

[0022] In this embodiment, the installation plate 3 and positioning hole 4 facilitate the installation and connection of the air inlet pipe 2. A large flow of compressed air from the outside is directly sent into the gas-liquid mixer 1 through the small-diameter air inlet pipe 2. After passing through the vertical guide plate 11 and the rotating guide plate 12, the gas rises in a spiral airflow and is broken into microbubbles by the bubble generator 13 inside the gas-liquid mixer 1. The microbubbles are then fully mixed with the sucked-in liquid inside the gas-liquid mixer 1 and spiral into the interior of the aeration disc 8. Finally, they are ejected from the interior of the aeration branch pipe 9, forming a circulating flow around the gas-liquid mixer 1. This increases the residence time of the microbubbles in the water, thus greatly improving the oxygen utilization rate. The multiple sets of small toothed aeration branch pipes 9 increase the air resistance, causing the aeration direction to change and diverge, increasing the aeration area. Gas that does not diverge will come out from the air hole 10.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment aeration device, comprising a gas-liquid mixer (1), characterized in that: The bottom side of the gas-liquid mixer (1) is connected to an air inlet pipe (2), and the top of the gas-liquid mixer (1) is provided with an aeration disc (8). The aeration disc (8) is conical, and multiple aeration branch pipes (9) are connected in a ring on the bottom surface of the aeration disc (8). Multiple sets of air holes (10) are opened on the upper surface of the aeration disc (8).

2. The wastewater treatment aeration device according to claim 1, characterized in that: A vertical guide plate (11) is installed on the lower inner side of the gas-liquid mixer (1) near the air inlet pipe (2).

3. The wastewater treatment aeration device according to claim 1, characterized in that: The end of the air intake pipe (2) is fixedly connected to the mounting plate (3), and the surface of the mounting plate (3) is evenly provided with multiple sets of positioning holes (4) in the circumferential direction.

4. The wastewater treatment aeration device according to claim 1, characterized in that: The gas-liquid mixer (1) is provided with a rotating guide plate (12) on its inner side, and the rotating guide plate (12) is located above the vertical guide plate (11).

5. The wastewater treatment aeration device according to claim 1, characterized in that: Multiple sets of bubble generators (13) are evenly distributed on the inner side of the gas-liquid mixer (1) near the aeration plate (8).

6. The wastewater treatment aeration device according to claim 1, characterized in that: The top of the gas-liquid mixer (1) is fixedly installed with a threaded column (5), and the bottom of the aeration disc (8) is connected with a cap (6). A sealing gasket (7) is installed at the bottom of the cap (6), and the cap (6) and the threaded column (5) are connected by a threaded rotation.

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