Stirring aeration device for sewage treatment

Abstract

The utility model relates to the field of sewage treatment devices, in particular to a stirring aeration device for sewage treatment, which comprises an aeration tank, four supporting legs, upright posts, a supporting plate, a moving module, a stirring module and a gas transmission unit, the lower end of the aeration tank is fixedly connected with the four supporting legs for supporting, and the four corners of the upper end of the aeration tank are fixedly connected with the upright posts; the upper ends of the four stand columns are jointly and fixedly connected with a supporting plate. Through the cooperative work of the moving module, the stirring module and the gas transmission unit, the aeration depth can be flexibly adjusted, the contact between organic matters and microorganisms in sewage and dissolved oxygen can be promoted through the stirring effect, the oxygenolysis process is accelerated, and the sewage treatment efficiency is improved. And the gas transmission unit uniformly distributes sufficient oxygen into the sewage in the form of tiny bubbles, so that the contact area between the oxygen and the sewage is obviously increased, the degradation speed of organic matters is increased, and the sewage treatment efficiency is enhanced.

Description

Technical Field

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

[0002] In the sewage treatment process, aeration equipment is used. It uses specific technologies and devices to force air into the sewage, aiming to improve the contact and oxygenation efficiency between sewage and air, while promoting water agitation, effectively accelerating the transfer of oxygen from air to water, avoiding the deposition of suspended matter, and strengthening the interaction between organic matter, microorganisms and dissolved oxygen in sewage, thereby promoting the oxidation and decomposition process of organic matter.

[0003] Most existing aeration devices usually bury a large number of aeration heads underwater and use blowers for aeration. This requires laying a lot of pipes, and the gas pipelines are usually fixed, which makes it impossible to adjust the aeration depth. In addition, most aeration tanks generally do not have a stirring structure installed, which results in a small contact area between air and sewage, which in turn affects the aeration efficiency.

[0004] Therefore, in view of the fact that the above-mentioned aeration device cannot change the aeration depth and does not have a stirring structure, resulting in reduced aeration efficiency, a stirring aeration device for sewage treatment can be designed. Through a threaded transmission structure and a rotating structure, while flexibly adjusting the aeration depth, the sewage in the aeration tank can be automatically stirred, thereby accelerating the aeration rate. Utility Model Content

[0005] In order to overcome the problem that the aeration device cannot change the aeration depth and does not have a stirring structure, resulting in reduced aeration efficiency.

[0006] The technical solution of the utility model is: a stirring aeration device for sewage treatment, comprising an aeration tank, supporting legs, columns, a support plate, a movable module, a stirring module and an air transmission unit; four supporting legs are fixedly connected to the lower end of the aeration tank, the four corners of the upper end of the aeration tank are fixedly connected to the columns, the upper ends of the four columns are commonly fixedly connected to the support plate, there are two groups of movable modules and they are installed in the aeration tank symmetrically, each group of movable modules is provided with a threaded transmission structure, the stirring module is installed in the aeration tank, the power output structure in the stirring module is installed at the upper end of the support plate, and the air transmission unit is installed in each group of movable modules.

[0007] Preferably, the aeration tank serves as the main container of the entire sewage treatment process, which is used to accommodate the sewage to be treated. The legs support the weight of the aeration tank to ensure the stability of the aeration tank. The columns support and fix the support plate. The support plate serves as an installation platform for the stirring module to provide stable support. The moving module uses a threaded transmission structure to enable the air pipe to move up and down in the aeration tank to achieve aeration in different areas of the aeration tank. The stirring module promotes the contact between organic matter in the sewage and microorganisms and dissolved oxygen through stirring, thereby accelerating the oxidation and decomposition process. The air supply unit transports air into the aeration tank to provide the required oxygen for the sewage treatment process.

[0008] Preferably, the mobile module includes a fixed plate and a gantry; there are two fixed plates that are symmetrically fixed to the inner wall of the aeration tank, and the upper end of each fixed plate is fixedly connected to the gantry. The fixed plate serves as a fixed base for the mobile module to ensure that the entire mobile module can be stably installed in the aeration tank. The fixed plate is made of corrosion-resistant, high-strength materials such as stainless steel. The gantry supports and fixes the No. 1 rotary motor. The gantry consists of beams and columns to form a stable frame structure.

[0009] Preferably, the mobile module further includes a No. 1 rotary motor and a rotary support seat; the No. 1 rotary motor is installed at the upper end of the gantry, the rotary support seat is fixedly connected to the upper end of the fixed plate and the rotary support seat is located at the lower end of the gantry, the No. 1 rotary motor provides power for the mobile module, and drives the threaded rod to rotate through rotational motion, thereby realizing the lifting and lowering motion of the lifting plate, the rotary support seat provides stable rotational support for the threaded rod, ensuring that the threaded rod will not deviate or shake during the rotation process, and a bearing mechanism is provided inside the rotary support seat to reduce friction and wear when the threaded rod rotates.

[0010] Preferably, the mobile module also includes a No. 1 coupling, a threaded rod and a lifting plate; the upper end of the threaded rod is equipped with a No. 1 coupling and is connected to the output shaft of the No. 1 rotary motor through the No. 1 coupling; the lower end of the threaded rod is rotatably connected to the rotary support seat; an internal thread that matches the external thread of the threaded rod is provided in the lifting plate; the threaded rod is threadedly connected to the lifting plate; the No. 1 coupling connects the output shaft of the No. 1 rotary motor and the threaded rod to transmit power; the threaded rod drives the lifting plate to rise and fall through the rotational motion, thereby realizing the vertical movement of the gas pipe in the aeration tank; the lifting plate serves as an installation platform for the gas pipe, and realizes the lifting motion through the rotational motion of the threaded rod.

[0011] Preferably, the stirring module includes a No. 2 rotary motor, a No. 2 coupling and a rotating shaft; the No. 2 rotary motor is installed at the upper end of the support plate, the No. 2 coupling is installed at the upper end of the rotating shaft and is connected to the output shaft of the No. 2 rotary motor through the No. 2 coupling, and the lower end of the rotating shaft extends downward into the aeration tank. The No. 2 rotary motor provides power for the stirring module, and drives the rotating shaft and the stirring blades to rotate through rotational motion. The No. 2 coupling connects the output shaft and the rotating shaft of the No. 2 rotary motor to transmit power. The rotating shaft serves as a support and transmission component for the stirring blades, and transmits the rotational motion of the No. 2 rotary motor to the stirring blades.

[0012] Preferably, the stirring module also includes stirring blades; there are four stirring blades and they are equidistantly arranged on the outer wall of the lower end of the rotating shaft, and each stirring blade is distributed along the axial direction of the rotating shaft. The stirring blades rotate to fully mix the sewage and air in the aeration tank to improve the aeration effect. The stirring blades are made of corrosion-resistant, high-strength materials, such as stainless steel, to ensure their stability and durability during use.

[0013] Preferably, the air supply unit includes an air inlet pipe, an air supply pipe and an air outlet; the air supply pipe is fixedly connected to the lifting plate and extends downward into the aeration tank, the air outlet of the air inlet pipe is threadedly connected to the air inlet of each air supply pipe, the air inlet of the air inlet pipe is connected to an external air supply machine, and air outlets are equidistantly arranged on the outer wall of the lower end of each air supply pipe. The air inlet pipe serves as the entrance for external air to enter the air supply unit, and the compressed air provided by the air supply machine is introduced into the air supply pipe. The air supply pipe transports the compressed air introduced by the air inlet pipe into the aeration tank and releases it into the sewage through the air outlet. The air outlet releases the compressed air in the air supply pipe into the sewage in the aeration tank, forming tiny bubbles, increasing the contact area between the sewage and the air, and improving the aeration efficiency.

[0014] Beneficial effects of the utility model:

[0015] 1. Through the coordinated work of the mobile module, stirring module and gas transmission unit, not only can the aeration depth be flexibly adjusted, but the stirring effect can also promote the contact between organic matter and microorganisms in the sewage and dissolved oxygen, accelerating the oxidation and decomposition process. The gas transmission unit evenly distributes sufficient oxygen into the sewage in the form of tiny bubbles, significantly increasing the contact area between oxygen and sewage, thereby increasing the degradation rate of organic matter and enhancing sewage treatment efficiency.

[0016] 2. The threaded rod drives the lifting plate up and down through rotational motion, thereby realizing the vertical movement of the gas pipe in the aeration tank and changing the aeration depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the stirring aeration device for sewage treatment of the present utility model;

[0018] Figure 2 Shown is a front view schematic diagram of the stirring aeration device for sewage treatment of the present utility model;

[0019] Figure 3 Shown is a top view schematic diagram of the stirring aeration device for sewage treatment of the present utility model;

[0020] Figure 4 Shown is a schematic diagram of the three-dimensional structure of the mobile module of the stirring aeration device for sewage treatment of the present utility model;

[0021] Figure 5 Shown is a schematic diagram of the three-dimensional structure of the stirring module of the stirring aeration device for sewage treatment of the present utility model;

[0022] Figure 6 Shown is a schematic diagram of the three-dimensional structure of the gas delivery unit of the stirring aeration device for sewage treatment of the present utility model.

[0023] Explanation of the accompanying reference numerals: 1. Aeration tank; 2. Support leg; 3. Column; 4. Support plate; 501. Fixed plate; 502. Door frame; 503. Rotating motor No. 1; 504. Rotating support seat; 505. Coupling No. 1; 506. Threaded rod; 507. Lifting plate; 601. Rotating motor No. 2; 602. Coupling No. 2; 603. Rotating shaft; 604. Mixing fan blade; 701. Air inlet pipe; 702. Air supply pipe; 703. Air outlet. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] See also Figures 1-6The utility model provides an embodiment: a stirring aeration device for sewage treatment, including an aeration tank 1, a support leg 2, a column 3, a support plate 4, a mobile module, a stirring module and an air transmission unit; the lower end of the aeration tank 1 is fixedly connected to four supporting legs 2 for support, the four corners of the upper end of the aeration tank 1 are fixedly connected to the column 3, the upper ends of the four columns 3 are all fixedly connected to the support plate 4, the mobile module has two groups and is symmetrically installed in the aeration tank 1, each group of mobile modules is provided with a threaded transmission structure, the stirring module is installed in the aeration tank 1, the power output structure in the stirring module is installed at the upper end of the support plate 4, and the air transmission unit is installed at each group of mobile modules. In the moving module, the aeration tank 1 serves as the main container of the entire sewage treatment process and is used to accommodate the sewage to be treated. The support legs 2 support the weight of the aeration tank 1 to ensure the stability of the aeration tank 1. The columns 3 support and fix the support plate 4. The support plate 4 serves as the installation platform of the stirring module to provide stable support. The moving module uses a threaded transmission structure to enable the air pipe 702 to move up and down in the aeration tank 1 to achieve aeration in different areas of the aeration tank 1. The stirring module promotes the contact between organic matter in the sewage and microorganisms and dissolved oxygen through stirring, accelerating the oxidation and decomposition process. The air supply unit transports air into the aeration tank 1 to provide the required oxygen for the sewage treatment process.

[0026] See also Figure 4In this embodiment, the mobile module includes a fixed plate 501 and a door frame 502; the fixed plate 501 has two pieces and is fixedly connected to the inner wall of the aeration tank 1 symmetrically on the left and right, and the upper end of each fixed plate 501 is fixedly connected to the door frame 502. The mobile module also includes a No. 1 rotary motor 503 and a rotary support seat 504; the No. 1 rotary motor 503 is installed at the upper end of the door frame 502, the rotary support seat 504 is fixedly connected to the upper end of the fixed plate 501, and the rotary support seat 504 is located at the lower end of the door frame 502. The mobile module The first coupling 505, the threaded rod 506 and the lifting plate 507 are also included; the upper end of the threaded rod 506 is equipped with the first coupling 505 and is connected to the output shaft of the first rotary motor 503 through the first coupling 505, the lower end of the threaded rod 506 is rotatably connected to the rotary support seat 504, and the lifting plate 507 is provided with an internal thread that matches the external thread of the threaded rod 506. The threaded rod 506 is threadedly connected to the lifting plate 507, and the fixed plate 501 serves as the fixed basis of the mobile module to ensure that the entire mobile module can It is stably installed in the aeration tank 1. The fixed plate 501 is made of corrosion-resistant, high-strength materials, such as stainless steel. The gantry 502 supports and fixes the No. 1 rotary motor 503. The gantry 502 is composed of a crossbeam and a column 3 to form a stable frame structure. The No. 1 rotary motor 503 provides power for the mobile module and drives the threaded rod 506 to rotate through rotation, thereby realizing the lifting and lowering movement of the lifting plate 507. The rotating support seat 504 provides stable rotational support for the threaded rod 506 to ensure that the threaded rod 506 does not deviate or shake during rotation. A bearing mechanism is provided inside the rotating support seat 504 to reduce friction and wear when the threaded rod 506 rotates. The No. 1 coupling 505 connects the output shaft of the No. 1 rotary motor 503 and the threaded rod 506 to transmit power. The threaded rod 506 drives the lifting plate 507 to move up and down through rotation, thereby realizing the vertical movement of the gas pipe 702 in the aeration tank 1. The lifting plate 507 serves as an installation platform for the gas pipe 702 and realizes lifting and lowering movement through the rotation of the threaded rod 506.

[0027] See also Figure 5-Figure 6In this embodiment, the stirring module includes a second rotary motor 601, a second coupling 602 and a rotating shaft 603; the second rotary motor 601 is installed on the upper end of the support plate 4, the upper end of the rotating shaft 603 is installed with the second coupling 602 and is connected to the output shaft of the second rotary motor 601 through the second coupling 602, and the lower end of the rotating shaft 603 extends downward into the aeration tank 1. The stirring module also includes stirring blades 604; the stirring blades 604 have four pieces and are equidistantly arranged on the outer wall of the lower end of the rotating shaft 603. Each piece The stirring blades 604 are all distributed along the axial direction of the rotating shaft 603. The second rotary motor 601 provides power for the stirring module, and drives the rotating shaft 603 and the stirring blades 604 to rotate through the rotational motion. The second coupling 602 connects the output shaft of the second rotary motor 601 and the rotating shaft 603 to transmit power. The rotating shaft 603 serves as a support and transmission component for the stirring blades 604, and transmits the rotational motion of the second rotary motor 601 to the stirring blades 604. The stirring blades 604 rotate to mix the sewage and air in the aeration tank 1. The air is fully mixed to improve the aeration effect. The stirring blade 604 is made of corrosion-resistant and high-strength materials, such as stainless steel, to ensure its stability and durability during use. Preferably, the air delivery unit includes an air inlet pipe 701, an air delivery pipe 702 and an air outlet 703; the air delivery pipe 702 is fixedly connected to the lifting plate 507 and extends downward into the aeration tank 1. The air outlet of the air inlet pipe 701 is threadedly connected to the air inlet of each air delivery pipe 702, and the air inlet of the air inlet pipe 701 is connected to the external air delivery machine. The outer wall of the lower end of each air transmission pipe 702 is provided with air outlet holes 703 at equal intervals around the circumference. The air inlet pipe 701 serves as the entrance for external air to enter the air transmission unit, and the compressed air provided by the air transmission machine is introduced into the air transmission pipe 702. The air transmission pipe 702 transports the compressed air introduced by the air inlet pipe 701 into the aeration tank 1 and releases it into the sewage through the air outlet holes 703. The air outlet holes 703 release the compressed air in the air transmission pipe 702 into the sewage in the aeration tank 1, forming tiny bubbles, increasing the contact area between the sewage and the air, and improving the aeration efficiency.

[0028] During operation, the staff first ensures that the air inlet pipe 701 is tightly connected to the external air delivery machine, and then starts the No. 1 rotary motor 503 and the No. 2 rotary motor 601. After the No. 1 rotary motor 503 is started, it drives the threaded rod 506 to rotate. The tight fit between the threads drives the lifting plate 507 to achieve smooth vertical movement, thereby driving the air delivery pipe 702 to adjust its position up and down, flexibly adjusting the aeration depth.

[0029] At the same time, the second rotary motor 601 activates the rotating shaft 603 to rotate, and the rotating shaft 603 drives the stirring blades 604 to rotate at high speed, fully stirring the sewage in the aeration tank 1, thereby expanding the contact interface between the sewage and the air. In addition, under the action of pressure, the air in the air pipe 702 is released into the sewage through the air outlet 703, forming a dense network of tiny bubbles. These bubbles greatly increase the contact area between the sewage and the air, significantly improve the aeration efficiency, and promote the sewage treatment process.

[0030] Through the above steps, through the coordinated work of the mobile module, the stirring module and the gas transmission unit, not only can the aeration depth be flexibly adjusted, but the stirring effect can also promote the contact between organic matter, microorganisms and dissolved oxygen in the sewage, thereby accelerating the oxidation and decomposition process. The gas transmission unit evenly distributes sufficient oxygen into the sewage in the form of tiny bubbles, significantly increasing the contact area between oxygen and sewage, thereby increasing the degradation rate of organic matter and enhancing sewage treatment efficiency, solving the problem that the aeration device cannot change the aeration depth and does not have a stirring structure, resulting in reduced aeration efficiency.

[0031] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A stirring aeration device for sewage treatment, comprising an aeration tank (1), a support leg (2), a column (3) and a support plate (4); characterized in that: The invention also includes a mobile module, a stirring module and an air transmission unit; the lower end of the aeration tank (1) is fixedly connected to four supporting legs (2); the four corners of the upper end of the aeration tank (1) are fixedly connected to columns (3); the upper ends of the four columns (3) are commonly fixedly connected to a support plate (4); there are two groups of mobile modules and they are installed in the aeration tank (1) in a symmetrical manner; each group of mobile modules is provided with a threaded transmission structure; the stirring module is installed in the aeration tank (1); the power output structure in the stirring module is installed on the upper end of the support plate (4); and the air transmission unit is installed in each group of mobile modules.

2. The agitating aeration device for sewage treatment according to claim 1, characterized in that: The mobile module comprises a fixed plate (501) and a door frame (502); the fixed plates (501) are two and are fixedly connected to the inner wall of the aeration tank (1) in a symmetrical manner, and the upper end of each fixed plate (501) is fixedly connected to the door frame (502).

3. The agitating aeration device for sewage treatment according to claim 2, characterized in that: The mobile module further comprises a number one rotary motor (503) and a rotary support seat (504); the number one rotary motor (503) is mounted on the upper end of the door frame (502), the rotary support seat (504) is fixedly connected to the upper end of the fixed plate (501) and the rotary support seat (504) is located at the lower end of the door frame (502).

4. The agitating aeration device for sewage treatment according to claim 3, characterized in that: The mobile module also includes a No. 1 coupling (505), a threaded rod (506) and a lifting plate (507); the upper end of the threaded rod (506) is equipped with the No. 1 coupling (505) and is connected to the output shaft of the No. 1 rotary motor (503) through the No. 1 coupling (505); the lower end of the threaded rod (506) is rotatably connected to the rotary support seat (504); the lifting plate (507) is provided with an internal thread adapted to the external thread of the threaded rod (506); the threaded rod (506) is threadedly connected to the lifting plate (507).

5. The agitating aeration device for sewage treatment according to claim 4, characterized in that: The stirring module comprises a No. 2 rotary motor (601), a No. 2 coupling (602) and a rotating shaft (603); the No. 2 rotary motor (601) is mounted on the upper end of the support plate (4); the No. 2 coupling (602) is mounted on the upper end of the rotating shaft (603) and is connected to the output shaft of the No. 2 rotary motor (601) via the No. 2 coupling (602); and the lower end of the rotating shaft (603) extends downward into the aeration tank (1).

6. The agitating aeration device for sewage treatment according to claim 5, characterized in that: The stirring module further comprises stirring blades (604); there are four stirring blades (604) which are equidistantly arranged on the outer wall of the lower end of the rotating shaft (603), and each stirring blade (604) is distributed along the axial direction of the rotating shaft (603).

7. The agitating aeration device for sewage treatment according to claim 6, characterized in that: The gas transmission unit comprises an air inlet pipe (701), an air delivery pipe (702) and an air outlet (703); the air delivery pipe (702) is fixedly connected to the lifting plate (507) and extends downward into the aeration tank (1); the air outlet of the air inlet pipe (701) is threadedly connected to the air inlet of each air delivery pipe (702); the air inlet of the air inlet pipe (701) is connected to an external gas transmission machine; and the outer wall of the lower end of each air delivery pipe (702) is provided with air outlets (703) equidistantly around the circumference.

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