Double-aeration sewage treatment device

Abstract

A double-aeration sewage treatment device relates to the field of sewage treatment and comprises an aeration barrel, a driving motor is fixedly mounted on the upper end face of the aeration barrel, a rotating shaft is fixedly connected to the output end of the driving motor, the rotating shaft extends downwards and penetrates into an inner cavity of the aeration barrel, a stirring disc is fixedly connected to the bottom end of the rotating shaft, and the stirring disc is fixedly connected to the bottom end of the rotating shaft. According to the sewage treatment device, sewage is preferentially scattered by the first stirring rods when entering the aeration barrel for the first time, and gas sprayed out of the aeration disc at the bottom is outwards expanded in a conical shape, so that the aeration barrel is more uniform in aeration, and the sewage treatment efficiency is improved. According to the sewage treatment device, gas sprayed out of the aeration discs on the triangular cone blocks on the left side and the right side intersects, air sprayed upwards continuously injects gas into sewage, and when the sewage is ready to pass through a water outlet in the bottom, the aeration discs conduct secondary gas injection on the sewage subjected to secondary stirring and scattering at the same time.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to a double aeration sewage treatment device. Background Art

[0002] Sewage aeration is an important part of the sewage treatment process. It is mainly used to increase the dissolved oxygen content in sewage and promote the degradation of organic matter by microorganisms. However, when aerating sewage, we find that the existing aeration plates basically inject gas upward from the bottom, and the injected air cannot fully contact the sewage, resulting in a low oxygen content in the sewage after aeration. Not only does it consume a large amount of air, but the overall aeration efficiency is very low. Utility Model Content

[0003] The purpose of the utility model is to provide a double aeration sewage treatment device to solve the problems raised in the above background technology.

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] A double aeration sewage treatment device comprises an aeration barrel, wherein a driving motor is fixedly mounted on the upper end surface of the aeration barrel, a rotating shaft is fixedly connected to the output end of the driving motor, the rotating shaft extends downward and penetrates into the inner cavity of the aeration barrel, a stirring disk is fixedly connected to the bottom end of the rotating shaft, meshing teeth are arranged on the outer ring end surface of the stirring disk, and two stirring rods are distributed and mounted at the outer ring position on the upper end surface of the stirring disk, each of the two stirring rods is tilted toward the direction of the rotating shaft, a gear disk is rotatably connected to the bottom inclined side wall in the inner cavity of the aeration barrel, the meshing teeth on the outer ring of the stirring disk mesh with the gear disk, a triangular cone block is fixedly mounted on the upper end surface of the gear disk, aeration disks are equidistantly mounted on the outer conical surface of the triangular cone block, and each of the aeration disks is connected to the inner cavity of the triangular cone block.

[0006] Preferably, an inflatable ring body is fixedly mounted on the bottom end surface of the aeration barrel at the center position of the triangular cone block, and an air inlet pipe is provided between the inner cavity of each triangular cone block and the inner cavity of the inflatable ring body.

[0007] Preferably, a mixing drum is fixedly sleeved on the rotating shaft, and stirring rods are evenly distributed on the outer end surface of the mixing drum.

[0008] Preferably, a base is fixedly mounted on the outer end surface of the aeration barrel, and support plates are mounted at four corner positions on the lower end surface of the base.

[0009] Preferably, a transverse plate is fixedly installed between the two supporting plates on the left side, an air aerator is fixedly installed on the upper surface of the transverse plate, and an air pipe is connected between the air outlet of the air aerator and the inflatable ring body.

[0010] Preferably, a water outlet pipe is fixedly installed at the water outlet at the bottom of the aeration barrel, and a water inlet pipe is fixedly installed on the outer end surface of the aeration barrel.

[0011] The advantages and positive effects of the utility model are:

[0012] The utility model is that when the sewage first enters the interior of the aeration barrel, it will be preferentially dispersed by the stirring rod 1, and the gas sprayed from the aeration plate at the bottom will expand outward in a cone shape, so that the gas sprayed from the aeration plates on the triangular cone blocks on the left and right sides will form a cross, and the air sprayed upwards will continue to inject gas into the sewage, and when the sewage is about to pass through the water outlet at the bottom, it will be stirred and dispersed for a second time by the stirring rod 2 at the bottom, and the aeration plate will also inject gas into the sewage that has been stirred and dispersed for the second time, thereby further increasing the oxygen content of the sewage, and then improving the aeration efficiency of the sewage treatment in the aeration tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of a double aeration sewage treatment device of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of a double aeration sewage treatment device according to the utility model from a bottom-up perspective;

[0016] Figure 3 This is a schematic diagram of the main cross-sectional structure of a double aeration sewage treatment device of the utility model;

[0017] Figure 4 For this utility model Figure 3 A is a schematic diagram of the locally enlarged structure.

[0018] The symbols in the accompanying drawings are described as follows: aeration barrel 10; drive motor 11; rotating shaft 12; mixing drum 13; stirring rod 14; base 15; supporting plate 16; water outlet pipe 17; cross plate 18; air aerator 19; air pipe 20; inflatable ring 21; air inlet pipe 22; gear plate 23; triangular cone block 24; aeration plate 25; stirring plate 26; stirring rod 27; water inlet pipe 28. DETAILED DESCRIPTION

[0019] The utility model will now be further described in detail in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic way, and therefore they only show the structures related to the utility model.

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] Combine the following Figure 1-4 The utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are the same as Figure 1 The view direction is consistent in front, back, left, right, up and down directions. Figure 1 The direction shown is consistent with the front, back, left, right, up and down directions of the device of the utility model when viewed from the front.

[0022] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of at least two elements or the interaction relationship between at least two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0024] See also Figure 1-4The utility model provides an embodiment: a double aeration sewage treatment device, including an aeration barrel 10, an inlet pipe 28 is installed in the upper area of ​​the aeration barrel 10, and the sewage to be treated enters the inner cavity of the aeration barrel 10 through the inlet pipe 28, and the outlet pipe 17 is installed at the water outlet at the bottom of the aeration barrel 10, and a driving motor 11 is fixedly installed on the upper end surface of the aeration barrel 10, and a rotating shaft 12 is fixedly connected to the output end of the driving motor 11, and the rotating shaft 12 extends downward and penetrates into the inner cavity of the aeration barrel 10, and a mixing drum 13 is fixedly sleeved on the rotating shaft 12, and stirring rods 14 are evenly distributed on the outer end surface of the mixing drum 13, which can be used for The sewage is stirred to improve the oxygen integration into the sewage. The bottom end of the rotating shaft 12 is fixedly connected with a stirring disc 26, and the stirring disc 26 is located at the water outlet at the bottom of the aeration barrel 10. The stirring disc 26 is hollow, and meshing teeth are arranged on the end face of the outer ring. At the same time, stirring rods 27 are distributed and installed at the outer ring position on the upper end face of the stirring disc 26. Each of the stirring rods 27 is inclined toward the direction of the rotating shaft 12. A gear plate 23 is rotatably connected to the side wall of the bottom slope in the inner cavity of the aeration barrel 10. The meshing teeth of the outer ring of the stirring disc 26 are meshed with the gear plate 23. A triangular cone block 24 is fixedly installed on the upper end face of the gear plate 23. The triangular cone block 2 Aeration discs 25 are evenly spaced and installed on the outer conical surface of 4, and each of the aeration discs 25 is connected to the inner cavity of the triangular cone block 24, so that when the sewage is treated, the drive motor 11 is started, and the sewage is first stirred and dispersed to a certain extent by using the stirring rod 14, and at the same time, the rotating shaft 12 drives the stirring disc 26 at the bottom to rotate. When the stirring disc 26 rotates, the stirring rod 27 at the top also rotates to stir and disperse the sewage at the outlet for a second time. At the same time, the stirring disc 26 drives the gear disc 23 to rotate, so that the triangular cone block 24 also rotates, so that the gas ejected from the aeration disc 25 is cone-shaped and moves outward. The gas ejected from the aeration disks 25 on the triangular cone blocks 24 on the left and right sides forms a cross, and aerates the stirred and dispersed sewage, increasing the contact area between the water and the air, thereby improving the oxygen dissolution efficiency. When the sewage first enters the interior of the aeration barrel 10, it will be preferentially dispersed by the stirring rod 14. At this time, the aeration disk 25 at the bottom will continue to inject air into the sewage by spraying air upwards. When the sewage is about to pass through the water outlet at the bottom, it will be stirred and dispersed for the second time by the stirring rod 27 at the bottom. At the same time, the aeration disk 25 will also perform a second injection of gas into the sewage that has been stirred and dispersed for the second time, thereby further increasing the oxygen content of the sewage, and then improving the aeration efficiency of sewage treatment in the aeration tank.

[0025] It should be noted that, in order to facilitate the injection of air, in the present embodiment, an inflatable ring body 21 is fixedly installed on the bottom end face of the aeration barrel 10 at the center position of the triangular cone block 24, and an air inlet pipe 22 is provided between the inner cavity of each triangular cone block 24 and the inner cavity of the inflatable ring body 21, and an air pipe 20 is connected between the air outlet of the aerator 19 and the inflatable ring body 21, so that the gas generated in the aerator 19 is input into the inner cavity of the inflatable ring body 21 through the air pipe 20, and then discharged into the inner cavity of the triangular cone block 24 through the air inlet pipe 22, and finally ejected from the aeration plate 25.

[0026] In addition, in one embodiment, a base 15 is fixedly installed on the outer end face of the aeration barrel 10, and support plates 16 are installed at four corner positions on the lower end face of the base 15. A cross plate 18 is fixedly installed between the two support plates 16 on the left side, and an air aerator 19 is fixedly installed on the upper end face of the cross plate 18.

[0027] In specific implementation, when sewage treatment is carried out, the sewage enters the inner cavity of the aeration barrel 10 from the water inlet pipe 28. At this time, the drive motor 11 is started, and the blower aerator 19 is started. First, the stirring rod 14 is used to stir and disperse the sewage to a certain extent. At the same time, the rotating shaft 12 drives the stirring plate 26 at the bottom to rotate. While the stirring plate 26 rotates, the stirring rod 27 at the top also rotates to stir and disperse the sewage at the water outlet for the second time. At the same time, the stirring plate 26 will drive the gear plate 23 to rotate, so that the triangular cone block 24 also rotates, so that the gas ejected from the aeration plate 25 is cone-shaped and expands outward. The gas ejected from the aeration plate 25 on the left and right sides of the triangular cone blocks 24 forms a cross, which stirs and disperses the sewage. Aeration is performed on sewage to increase the contact area between water and air, thereby improving the oxygen dissolution efficiency. When sewage first enters the interior of the aeration barrel 10, it will be preferentially dispersed by the stirring rod 14, and the gas generated in the air aerator 19 is input into the inner cavity of the inflatable ring body 21 through the air pipe 20, and then discharged into the inner cavity of the triangular cone block 24 through the air inlet pipe 22, and finally sprayed out from the aeration plate 25. At this time, the aeration plate 25 at the bottom will continue to inject air into the sewage by spraying air upward, and when the sewage is about to pass through the water outlet at the bottom, it will be stirred and dispersed for the second time by the stirring rod 27 at the bottom. At the same time, the aeration plate 25 will also perform secondary air injection on the sewage that has been stirred and dispersed for the second time, thereby further increasing the oxygen content of the sewage, and thus improving the aeration efficiency of sewage treatment in the aeration tank.

[0028] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A double aeration sewage treatment device, comprising an aeration tank (10), characterized in that: A driving motor (11) is fixedly mounted on the upper end surface of the aeration barrel (10); a rotating shaft (12) is fixedly connected to the output end of the driving motor (11); the rotating shaft (12) extends downward and penetrates into the inner cavity of the aeration barrel (10); a stirring disc (26) is fixedly connected to the bottom end of the rotating shaft (12); meshing teeth are arranged on the outer ring end surface of the stirring disc (26); two stirring rods (27) are distributed and mounted on the upper end surface of the stirring disc (26) at the outer ring position; each of the two stirring rods (27) has a plurality of teeth. They are all inclined toward the direction of the rotating shaft (12); a gear plate (23) is rotatably connected to the bottom inclined side wall in the inner cavity of the aeration barrel (10); the meshing teeth of the outer ring of the stirring plate (26) are meshed with the gear plate (23); a triangular cone block (24) is fixedly installed on the upper end surface of the gear plate (23); aeration plates (25) are evenly distributed and installed on the outer conical surface of the triangular cone block (24); each of the aeration plates (25) is connected to the inner cavity of the triangular cone block (24).

2. A dual aeration sewage treatment device according to claim 1, characterized in that: An air-filled ring body (21) is fixedly mounted on the bottom end surface of the aeration barrel (10) at the center position of the triangular cone block (24), and an air inlet pipe (22) is provided between the inner cavity of each triangular cone block (24) and the inner cavity of the air-filled ring body (21).

3. A double aeration sewage treatment device according to claim 2, characterized in that: A mixing drum (13) is fixedly sleeved on the rotating shaft (12), and stirring rods (14) are evenly spaced and arranged on the outer end surface of the mixing drum (13).

4. A dual aeration sewage treatment device according to claim 3, characterized in that: A base (15) is fixedly mounted on the outer end surface of the aeration barrel (10), and support plates (16) are mounted on the lower end surface of the base (15) at four corner positions.

5. A dual aeration sewage treatment device according to claim 4, characterized in that: A transverse plate (18) is fixedly installed between the two supporting plates (16) on the left side, an air aerator (19) is fixedly installed on the upper end surface of the transverse plate (18), and an air pipe (20) is connected between the air outlet of the air aerator (19) and the inflatable ring body (21).

6. A dual aeration sewage treatment device according to claim 5, characterized in that: A water outlet pipe (17) is fixedly installed at the water outlet at the bottom of the aeration barrel (10), and a water inlet pipe (28) is fixedly installed on the outer end surface of the aeration barrel (10).

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