Aeration device for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, and discloses an aeration device for sewage treatment, the aeration device comprises a mounting plate, the mounting plate is provided with an aeration assembly, the aeration assembly comprises a main pipe rotatably arranged on the mounting plate, the main pipe is provided with a plurality of aeration pipes, the lower end of the main pipe passes through the mounting plate and is connected with a driving box, and the driving box is provided with a plurality of aeration pipes. The driving box comprises a sealing cover arranged on the outer side of the driving piece on the mounting plate, and the driving piece is arranged in the sealing cover; through cooperative use of the driving box, the aeration assembly and the gas inlet end, gas is conveyed into the sealing cover through gas conveying equipment, a turbine is pushed by gas flow to drive the main pipe to rotate, so that the aeration pipe rotates, sewage is stirred, meanwhile, the aeration pipe is pushed by jet flow sprayed by an aeration nozzle, rotation of the aeration pipe is further accelerated, and the aeration efficiency is improved. The aeration device accelerates sufficient mixing of oxygen and sewage, enhances the aeration effect, and has the effects of high aeration efficiency, high oxygen utilization rate and good mixing effect.

Description

TECHNICAL FIELD

[0001] The application relates to the sewage treatment technical field, in particular to a sewage treatment aeration device. BACKGROUND

[0002] In the sewage treatment process, aeration is a key link, which aims to fill sufficient oxygen into the sewage to promote the growth and reproduction of aerobic microorganisms, so that the aerobic microorganisms can effectively decompose the organic pollutants in the sewage to realize the purification of the sewage.

[0003] However, the traditional sewage treatment aeration device has many deficiencies. On the one hand, the traditional aeration device often simply injects air or oxygen into the sewage through an aeration head or an aeration disc and the like, which easily leads to uneven distribution of oxygen in the sewage, oxygen excess in some areas and oxygen deficiency in some areas, influences the overall activity of the aerobic microorganisms, and reduces the sewage treatment effect. At the same time, due to insufficient mixing of oxygen and sewage, a large amount of oxygen escapes the water surface without being effectively utilized, causing waste of energy and increasing the sewage treatment cost. On the other hand, the traditional aeration device has limited stirring effect on the sewage in the aeration process, cannot form a good water flow circulation and turbulent state, and makes the pollutants in the sewage difficult to fully contact with the oxygen, further reducing the treatment efficiency. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems of uneven oxygen distribution, insufficient mixing, limited stirring effect, influence on the treatment effect, waste of energy and increase of the treatment cost of the traditional aeration device, the application provides a sewage treatment aeration device.

[0005] The sewage treatment aeration device provided by the application adopts the following technical scheme:

[0006] The sewage treatment aeration device comprises a mounting plate, an aeration assembly is arranged on the mounting plate, the aeration assembly comprises a main pipe rotatably arranged on the mounting plate, a plurality of aeration pipes are arranged on the main pipe, the lower end of the main pipe penetrates through the mounting plate and is connected with a driving box, the driving box comprises a sealing cover arranged on the outer side of a driving member on the mounting plate, and the driving member is arranged in the sealing cover.

[0007] Preferably, the driving member is detachably arranged on the main pipe, and the driving member can be a turbine.

[0008] Preferably, a plurality of air inlet holes are arranged on the main pipe, and the air inlet holes are located on the inner side of the driving member.

[0009] Preferably, an air inlet end is arranged on the end of the sealing cover away from the aeration assembly, and the air inlet end is in communication with the sealing cover.

[0010] Preferably, the aeration pipe comprises a branch pipe arranged on the main pipe, and a plurality of aeration nozzles are arranged on the branch pipe, and the jet direction of the aeration nozzles is opposite to the rotating direction.

[0011] In summary, the present application has the following beneficial technical effects:

[0012] By the cooperation of the driving box, the aeration assembly and the air inlet end, the gas is delivered into the sealing cover by the gas delivery device, the turbine is driven by the airflow to rotate the main pipe, the aeration pipe is rotated to stir the sewage, and the jet flow sprayed by the aeration nozzles is used to push the aeration pipe, so that the rotation of the aeration pipe is further accelerated, the oxygen and the sewage are fully mixed, and the aeration effect is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is a first perspective three-dimensional structure schematic diagram of the embodiment of the application;

[0014] Fig. 2 is a second perspective three-dimensional structure schematic diagram of the embodiment of the application;

[0015] Fig. 3 is a third perspective three-dimensional structure schematic diagram of the embodiment of the application.

[0016] Reference Signs: 1, mounting plate; 2, driving box; 201, sealing cover; 202, turbine; 3, aeration assembly; 301, main pipe; 302, aeration pipe; 3021, branch pipe; 3022, aeration nozzle; 4, air inlet end; 5, air inlet hole. DETAILED DESCRIPTION

[0017] The following will be described in detail with reference to the accompanying drawings. Figs. 1-3 The application will be further described in detail.

[0018] The embodiment of the application discloses a sewage treatment aeration device. Figs. 1-3 The sewage treatment aeration device mainly comprises a mounting plate 1, a driving box 2 and an aeration assembly 3, gas is uniformly dispersed in sewage by the efficient aeration mode, the oxygen utilization rate is improved, the stirring effect is realized by the water flow power generated by aeration, and the sewage treatment efficiency is enhanced.

[0019] The embodiment of the application discloses a sewage treatment aeration device. Fig. 1, the mounting plate 1 is made of stainless steel plate or high-strength plastic plate, and is provided with appropriate mounting holes and fixing structures, which greatly facilitates the connection with the sewage treatment tank. For example, bolt connection is adopted, which has the advantages of relatively simple installation and disassembly, facilitating equipment maintenance and replacement; welding can provide more stable connection stability, ensuring that the device does not shake or shift during operation, ensuring the stability and reliability of the aeration process, and laying a solid foundation for the continuous and efficient operation of sewage treatment.

[0020] Referring to FIG. 3, the drive box 2 is composed of a sealing cover 201 and a turbine 202. The sealing cover 201 is made of corrosion-resistant metal material or engineering plastic, has good sealing performance, can effectively prevent gas leakage, and can ensure that the gas acts on the turbine 202 to make it work efficiently. The shape and size of the sealing cover 201 are accurately designed according to the specifications and installation requirements of the turbine 202, and sufficient space is reserved inside to enable the gas to flow smoothly therein and impact the blades of the turbine 202 at the best angle and force, thereby efficiently converting the kinetic energy of the gas into the rotational power of the turbine 202, which in turn drives the main pipe 301 to rotate.

[0021] Referring to Fig. 2 , the gas inlet end 4 adopts a standard gas connection interface, such as a flange connection or a threaded connection interface. This standardized design facilitates quick and stable connection with external gas conveying equipment, ensuring that the gas can smoothly enter the sealing cover 201. The pipe diameter is reasonably selected according to the gas flow and pressure requirements to ensure that the gas can enter at a stable flow rate and pressure, providing sufficient power support for the stable rotation of the turbine 202 and avoiding the influence of poor gas intake or insufficient pressure on the operating efficiency of the device. The turbine 202 is the core driving part for driving the main pipe 301 to rotate, and the shape and angle of the blades are optimized to efficiently convert the kinetic energy of the gas and drive the main pipe 301 to rotate, reducing energy loss. The connection part between the main pipe 301 and the turbine 202 is precisely machined to ensure firm and high concentricity, reduce vibration and wear, and prolong the service life. A detachable connection, such as a bolt or clamp connection, is adopted to facilitate installation, disassembly and maintenance, and the device can be quickly replaced during failure or maintenance, thereby shortening downtime, improving production efficiency and economic benefits.

[0022] Referring to Fig. 3 , the aeration assembly 3 is composed of the main pipe 301 and the aeration pipe 302, which are made of high-strength engineering plastic or stainless steel pipe. The pipe diameter and wall thickness are designed according to the gas and aeration pipe parameters to ensure the service life and rotation stability. The number, size and distribution of the gas inlet holes 5 are reasonable, and the edges are precisely machined to be smooth, ensuring uniform gas distribution, improving flow and turbine efficiency, and enhancing the performance of the aeration device. The connection between the main pipe 301 and the mounting plate 1 adopts mechanical sealing to ensure the sealing of the connection.

[0023] Referring toFig. 3 The branch pipe 3021 is made of the same material as the main pipe 301, and the diameter and length thereof are selected according to the aeration range and the depth of the sewage, and the connection is reliable and leakage-proof. The aeration nozzle 3022 is specially designed, the size and shape of the spray hole thereof are optimized to generate fine bubbles, the specific surface area is large, the mixing with the sewage is good, and the oxygen dissolution efficiency is high. The jet direction is opposite to the rotation direction of the main pipe, and the structure design and material ensure that the jet direction is not deviated and blocked, the rotation speed is accelerated, the turbulence of the sewage is promoted, and the aeration effect and the device efficiency are improved.

[0024] The implementation principle of the aeration device for sewage treatment in the embodiment of the present application is as follows:

[0025] In the sewage treatment site, the aeration device is installed on the sewage treatment tank through the mounting plate 1 to ensure firm and stable installation, and the aeration assembly 3 can be completely immersed in the sewage, and the air inlet end 4 is tightly connected with the external air supply equipment without leakage.

[0026] When the sewage treatment system is started, the external air supply equipment starts to work, and air or oxygen and the like is delivered into the sealing cover 201 through the air inlet end 4. The gas forms a certain pressure in the sealing cover 201, and enters the inside of the main pipe 301 through the air inlet hole 5 on the main pipe 301. Due to the optimized design of the position and direction of the air inlet hole 5, the gas entering the main pipe 301 can directly impact the blades of the turbine 202, so that the turbine 202 starts to rotate around the axis of the main pipe 301. A reliable connection mode such as a key connection or a spline connection is adopted between the turbine 202 and the main pipe 301, so as to ensure that the rotation of the turbine 202 can be stably transmitted to the main pipe 301, and drive the main pipe 301 and the aeration pipe 302 thereon to rotate together.

[0027] With the rotation of the main pipe 301, the aeration pipe 302 forms a circular motion in the sewage, and the sewage is stirred to generate turbulence. At the same time, the aeration nozzle 3022 on the branch pipe 3021 sprays the gas in the main pipe 301 into the sewage in the form of a jet. Since the jet direction of the aeration nozzle 3022 is opposite to the rotation direction of the main pipe 301, the jet will generate a reaction force on the aeration pipe 302, and push the aeration pipe 302 to rotate faster, further enhancing the stirring effect on the sewage and the dispersion effect of the gas.

[0028] During the aeration process, the gas sprayed from the aeration nozzle 3022 forms fine bubbles, and these bubbles contact the sewage fully during the rising process in the sewage, and the oxygen is gradually dissolved into the sewage to provide sufficient oxygen supply for the aerobic microorganisms. At the same time, since the sewage is in a turbulent state, the organic pollutants in the sewage can be more fully contacted with the oxygen, the decomposition efficiency of the aerobic microorganisms on the pollutants is improved, the speed of the sewage treatment is accelerated, and the treatment effect is improved.

[0029] Finally should be explained a few points are: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the term "installation", "connected", "connection" should be broad, can be mechanical or electrical connection, but also can be two elements inside the communication, can be directly connected, "up", "down", "left", "right" and so on, only for indicating the relative position relationship, when the absolute position of the described object changes, the relative position relationship may change;

[0030] Second: the utility model discloses the embodiment in the drawing, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of not conflicting, the same embodiment and different embodiments of the utility model can be combined with each other;

[0031] Finally: the above only for the preferred embodiment of the utility model has, and does not for limiting the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

[0032] The above are the preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application, should be covered within the scope of protection of the present application.

Claims

1. An aeration device for sewage treatment comprising a mounting plate (1), characterised in that: The installation plate (1) is provided with an aeration assembly (3), the aeration assembly (3) comprises a main pipe (301) rotatably arranged on the installation plate (1), a plurality of aeration pipes (302) are arranged on the main pipe (301), the lower end of the main pipe (301) penetrates through the installation plate (1) and is connected with a driving box (2), the driving box (2) comprises a sealing cover (201) arranged on the outer side of the driving member on the installation plate (1), and the driving member is arranged in the sealing cover (201).

2. The aerator according to claim 1, wherein: The driving member is detachably arranged on the main pipe (301), and the driving member can be a turbine.

3. The aerator according to claim 1, wherein: A plurality of air inlet holes (5) are arranged on the main pipe (301), and the air inlet holes (5) are located on the inner side of the installation plate (1) and the driving member.

4. The aerator according to claim 1, wherein: An air inlet end (4) is arranged on the end of the sealing cover (201) away from the aeration assembly (3), and the air inlet end (4) is in communication with the sealing cover (201).

5. The aerator according to claim 1, wherein: The aeration pipe (302) comprises a branch pipe (3021) arranged on the main pipe (301), a plurality of aeration nozzles (3022) are arranged on the branch pipe (3021), and the jet direction of the aeration nozzle (3022) is opposite to the rotating direction.

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