A high-efficiency sewage swirling aeration device

Abstract

The utility model discloses a sewage's cyclone type high -efficient aeration device relates to sewage treatment technical field, including the aeration cylinder body and the aeration pipe of the bottom side end installation of aeration cylinder body all are open setting from top to bottom, the top of aeration cylinder body is fixed with the mounting bracket, the middle part rotation of mounting bracket is installed with the transmission shaft, and the bottom of transmission shaft is installed with the fan blade, and the inboard of aeration cylinder body is provided with cutting mechanism, and cutting mechanism includes first cutting part, second cutting part and reversing part. The utility model utilizes the high -speed gas to collide with sewage, still utilizes high -speed gas to drive the fan blade rotation, makes transmission shaft with first cutting part and second cutting part rotate, and the cyclone cutting is carried out to bubble and water, and a large amount of micro -bubble is produced after cyclone cutting and is dissolved in water, improves the metabolic efficiency of microorganism, and because the rotation direction of first cutting part and second cutting part is opposite, can effectively improve the cutting and tearing effect of bubble, improves the dissolved oxygen utilization of sewage treatment.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a vortex-type high-efficiency aeration device for wastewater. Background Technology

[0002] Wastewater treatment primarily relies on activated sludge within the wastewater treatment system to degrade harmful substances. Aerobic sludge bacteria utilize free oxygen in the water to digest and degrade organic matter. However, the free oxygen content in the wastewater limits the sludge bacteria's ability to digest and degrade harmful substances. Therefore, aerators are generally used as auxiliary equipment in wastewater treatment. An aerator is a device that disperses air introduced into the biological treatment tank by a blower into uniformly tiny bubbles. The main function is to thoroughly agitate the sludge-water mixture in the wastewater tank through these uniformly dispersed bubbles. Simultaneously, the air is dispersed into tiny bubbles through the aerator, improving dissolved oxygen utilization and achieving sufficient contact between microorganisms, pollutants, and oxygen.

[0003] According to the search, patent publication number CN219363420U provides a non-clogging cyclone aerator, which has a first cutter and a second cutter installed on the circumference of the rotating shaft. This can quickly cut and tear the mixture of mud, water and air, making it form dense bubbles, increasing the oxygen transfer rate and improving the working efficiency of the aerator.

[0004] However, the cutting structure of the aforementioned aerator only cuts the bubbles by rotating in one direction, and the bubbles follow the flow of the cutting structure, resulting in some bubbles not being effectively cut, thus leading to low dissolved oxygen utilization in wastewater treatment. Therefore, a vortex-type high-efficiency aeration device for wastewater treatment is proposed to improve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a high-efficiency swirl-type aeration device for wastewater to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a vortex-type high-efficiency aeration device for sewage, comprising an aeration cylinder body with open top and bottom and an aeration pipe installed at the bottom side of the aeration cylinder body, a mounting frame fixed to the top of the aeration cylinder body, a drive shaft rotatably mounted in the middle of the mounting frame, and a fan blade installed at the bottom end of the drive shaft.

[0007] A cutting mechanism is provided on the inner side of the aeration cylinder, which includes a first cutting part, a second cutting part, and a reversing part.

[0008] The first cutting part is mounted on the drive shaft, and the second cutting part is connected to the drive shaft through the reversing part. When the fan blades rotate with the drive shaft, the drive shaft rotates in the opposite direction with the second cutting part through the reversing part.

[0009] As a further supplement to this solution, the first cutting section includes a plurality of first cutting elements, which are fixed at equal intervals from top to bottom to the side end of the drive shaft.

[0010] As a further supplement to this solution, the reversing section includes a first bevel gear, a second bevel gear, and a third bevel gear;

[0011] A protective shell is installed in the middle of the mounting bracket, and the first bevel gear, the second bevel gear and the third bevel gear are all located inside the protective shell;

[0012] The first bevel gear is fixed coaxially to the top of the drive shaft. A rotating sleeve is rotatably sleeved on the outside of the drive shaft. The third bevel gear is fixed coaxially to the outside of the rotating sleeve. The second bevel gear is rotatably mounted on the inner wall of the protective shell. Both the first and third bevel gears mesh with the second bevel gear.

[0013] The second cutting section is connected to the side end of the rotating sleeve.

[0014] As a further supplement to this solution, the second cutting part includes multiple second cutting components. A horizontal bar is fixed to the side end of the rotating sleeve, and a vertical bar is fixed to the end of the horizontal bar away from the rotating sleeve. Multiple second cutting components are fixed at equal intervals from top to bottom to the side end of the vertical bar, and the multiple second cutting components are staggered with the multiple first cutting components.

[0015] As a further supplement to this solution, the vertical rod is slidably fitted to the inner wall of the aeration cylinder.

[0016] As a further supplement to this solution, a protective filter screen is installed at the bottom opening of the aeration cylinder.

[0017] As a further supplement to this solution, a cleaning rod is fixed at the bottom end of the drive shaft after it passes through the aeration pipe and the protective filter screen. The cleaning rod has cleaning bristles that are in contact with the outer surface of the protective filter screen.

[0018] In summary, the technical effects and advantages of this utility model are as follows:

[0019] In this invention, while high-speed gas collides with sewage, the high-speed gas also drives the fan blades to rotate, causing the transmission shaft to rotate the first and second cutting parts, which perform swirling cutting on the bubbles and water. After swirling cutting, a large number of microbubbles are generated and dissolved in the water, improving the efficiency of microbial metabolism. Furthermore, since the first and second cutting parts rotate in opposite directions, the cutting and tearing effect of the bubbles can be effectively improved, thereby increasing the dissolved oxygen utilization rate of sewage treatment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure in Embodiment 1;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure in Embodiment 1.

[0023] Figure 3 This is a schematic diagram of the cutting mechanism in Embodiment 1.

[0024] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0025] Figure 5 This is a schematic diagram of the structure in Embodiment 2.

[0026] In the diagram: 1. Aeration cylinder body; 2. Aeration pipe; 3. Mounting frame; 4. Drive shaft; 5. Fan blade; 6. First cutting component; 7. First bevel gear; 8. Second bevel gear; 9. Third bevel gear; 10. Rotating sleeve; 11. Horizontal bar; 12. Vertical bar; 13. Second cutting component; 14. Protective filter screen; 15. Cleaning rod; 16. Protective shell. Detailed Implementation

[0027] 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.

[0028] Example 1: Reference Figure 1-4The wastewater vortex-type high-efficiency aeration device shown includes an aeration cylinder 1 with open top and bottom and an aeration pipe 2 installed at the bottom side of the aeration cylinder 1. The aeration pipe 2 is connected to an external aeration blower. A mounting frame 3 is fixed to the top of the aeration cylinder 1. A drive shaft 4 is rotatably mounted in the middle of the mounting frame 3. A fan blade 5 is installed at the bottom of the drive shaft 4. A cutting mechanism is provided inside the aeration cylinder 1. The cutting mechanism includes a first cutting part, a second cutting part and a reversing part. The first cutting part is mounted on the drive shaft 4. The second cutting part is connected to the drive shaft 4 through the reversing part. When the fan blade 5 drives the drive shaft 4 to rotate, the drive shaft 4 drives the second cutting part to rotate in the opposite direction through the reversing part.

[0029] Air is compressed and blown into aeration pipe 2 using a conventional aeration blower, and then enters the aeration cylinder 1 through aeration pipe 2. The high-speed gas collides with the sewage, and at the same time, the high-speed gas drives the fan blades 5 to rotate, which causes the drive shaft 4 to rotate the first and second cutting parts, performing swirling cutting on the bubbles and water. After swirling cutting, a large number of microbubbles are generated and dissolved in the water, improving the efficiency of microbial metabolism. Moreover, since the first and second cutting parts rotate in opposite directions, the cutting and tearing effect of the bubbles can be effectively improved, thereby increasing the dissolved oxygen utilization rate of sewage treatment.

[0030] Specifically, the first cutting section includes multiple first cutting components 6, which are fixed at equal intervals from top to bottom to the side end of the drive shaft 4; the reversing section includes a first bevel gear 7, a second bevel gear 8, and a third bevel gear 9; a protective shell 16 is installed in the middle of the mounting bracket 3, and the first bevel gear 7, the second bevel gear 8, and the third bevel gear 9 are all located inside the protective shell 16; the first bevel gear 7 is coaxially fixed to the top end of the drive shaft 4, and a rotating sleeve 10 is rotatably sleeved on the outer side of the drive shaft 4; the third bevel gear 9 is coaxially fixedly sleeved on the outer side of the rotating sleeve 10, and the second bevel gear 8 rotates... The first bevel gear 7 and the third bevel gear 9 are both meshed with the second bevel gear 8, so that the first bevel gear 7 and the third bevel gear 9 rotate in opposite directions. The second cutting part is connected to the side end of the rotating sleeve 10. The second cutting part includes a plurality of second cutting parts 13. A horizontal bar 11 is fixed to the side end of the rotating sleeve 10. A vertical bar 12 is fixed to the end of the horizontal bar 11 away from the rotating sleeve 10. The plurality of second cutting parts 13 are fixed at equal intervals from top to bottom to the side end of the vertical bar 12, and the plurality of second cutting parts 13 are staggered with the plurality of first cutting parts 6.

[0031] The vertical rod 12 is slidably fitted to the inner wall of the aeration cylinder 1. During the rotation of the vertical rod 12, it can scrape off the sludge attached to the inner wall of the aeration cylinder 1, eliminating the need for manual cleaning.

[0032] In addition, a protective filter screen 14 is installed at the bottom opening of the aeration cylinder 1, which can filter out large-diameter impurities in the water and prevent large-diameter impurities from entering the aeration cylinder 1 and causing the cutting parts to get stuck.

[0033] Example 2: As Figure 5 As shown, the bottom end of the drive shaft 4 passes through the aeration pipe 2 and the protective filter screen 14 and is fixed with a cleaning rod 15. The surface of the cleaning rod 15 is fixed with cleaning bristles that contact the outer surface of the protective filter screen 14. As the drive shaft 4 rotates, the cleaning rod 15 can use the cleaning bristles to clean the protective filter screen 14, effectively preventing the protective filter screen 14 from clogging. It should also be noted that some impurities will be broken into smaller particles by the cleaning action of the cleaning bristles and enter the aeration cylinder 1. These small particles will not cause the cutting parts to get stuck.

[0034] It should be noted that the specific models and specifications of the electrical equipment involved in this solution need to be selected and determined based on the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, so they will not be described in detail here. The power supply and principles of the electrical equipment involved are clear to those skilled in the art, and will not be described in detail here.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency swirl-type aeration device for wastewater, comprising an aeration cylinder (1) with open top and bottom and an aeration pipe (2) installed at the bottom side of the aeration cylinder (1), characterized in that, The top of the aeration cylinder (1) is fixed with a mounting bracket (3), and a drive shaft (4) is rotatably mounted in the middle of the mounting bracket (3). A fan blade (5) is mounted at the bottom of the drive shaft (4). The aeration cylinder (1) is provided with a cutting mechanism on its inner side, the cutting mechanism including a first cutting part, a second cutting part and a reversing part; The first cutting part is mounted on the drive shaft (4), and the second cutting part is connected to the drive shaft (4) through the reversing part. When the fan blade (5) rotates with the drive shaft (4), the drive shaft (4) rotates in the opposite direction with the second cutting part through the reversing part.

2. The vortex-type high-efficiency aeration device for wastewater according to claim 1, characterized in that: The first cutting part includes a plurality of first cutting elements (6), which are fixed at equal intervals from top to bottom to the side end of the transmission shaft (4).

3. The vortex-type high-efficiency aeration device for wastewater according to claim 2, characterized in that: The reversing section includes a first bevel gear (7), a second bevel gear (8), and a third bevel gear (9); A protective shell (16) is installed in the middle of the mounting bracket (3), and the first bevel gear (7), the second bevel gear (8) and the third bevel gear (9) are all located inside the protective shell (16); The first bevel gear (7) is coaxially fixed to the top end of the transmission shaft (4), and a rotating sleeve (10) is rotatably sleeved on the outer side of the transmission shaft (4). The third bevel gear (9) is coaxially fixedly sleeved on the outer side of the rotating sleeve (10), and the second bevel gear (8) is rotatably mounted on the inner wall of the protective shell (16). Both the first bevel gear (7) and the third bevel gear (9) mesh with the second bevel gear (8). The second cutting part is connected to the side end of the rotating sleeve (10).

4. The vortex-type high-efficiency aeration device for wastewater according to claim 3, characterized in that: The second cutting part includes a plurality of second cutting parts (13). A horizontal bar (11) is fixed to the side end of the rotating sleeve (10). A vertical bar (12) is fixed to the end of the horizontal bar (11) away from the rotating sleeve (10). The plurality of second cutting parts (13) are fixed at equal intervals from top to bottom to the side end of the vertical bar (12), and the plurality of second cutting parts (13) are staggered with the plurality of first cutting parts (6).

5. A high-efficiency swirl-type aeration device for wastewater according to claim 4, characterized in that: The vertical rod (12) is slidably fitted to the inner wall of the aeration cylinder (1).

6. The vortex-type high-efficiency aeration device for wastewater according to claim 1, characterized in that: A protective filter screen (14) is installed at the bottom opening of the aeration cylinder (1).

7. A high-efficiency swirl-type aeration device for wastewater according to claim 6, characterized in that: The bottom end of the drive shaft (4) is movably connected through the aeration pipe (2) and the protective filter screen (14) and then fixed with a cleaning rod (15). The surface of the cleaning rod (15) is fixed with cleaning bristles that are in contact with the outer surface of the protective filter screen (14).

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