Sewage treatment device helpful for accurately controlling aeration rate of aerobic tank

Abstract

The utility model discloses a sewage treatment device helpful for accurate control of aerobic tank aeration rate, which relates to the technical field of sewage treatment and comprises an aerobic tank, a mounting rack is mounted in the aerobic tank, a mounting shell is fixedly connected in the mounting rack, and air pipes are symmetrically and fixedly connected to two sides of the mounting shell at equal intervals. Aeration discs are symmetrically mounted on the outer side of the air pipe at equal intervals, a dissolved oxygen monitor is mounted in the aerobic tank, a lifting assembly is mounted on the outer side of the aerobic tank, an air inlet is formed in the top of the mounting shell, a telescopic hose is fixedly connected to the top of the air inlet, and the air inlet is communicated with the air pipe. By adopting the structure, water and sludge in the tank do not need to be emptied, and the aeration disc can be directly lifted above the water surface for operation, so that the maintenance time is greatly shortened, the maintenance cost is reduced, factors such as bubble diameter, gas-liquid contact area, bubble diffusion uniformity and the like are further optimized, and the oxygen utilization rate is improved.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and specifically relates to a wastewater treatment device that helps to accurately control the aeration volume of an aerobic tank. Background Technology

[0002] An aerobic tank is a facility used for wastewater treatment, also known as an aeration tank or activated tank. It contains a large amount of oxygen, which fosters the growth of microorganisms called aerobic bacteria. These aerobic bacteria oxidize ammonia nitrogen in wastewater into nitrate nitrogen through the oxidation of organic matter. Simultaneously, due to the presence of ammonia-reducing bacteria, nitrate nitrogen is reduced back to nitrogen gas and emitted. The biodegradation process in the aerobic tank utilizes oxygen to metabolize organic matter, decomposing and transforming organic matter in the wastewater. In the presence of oxygen, aerobic bacteria decompose organic matter in wastewater, converting it into carbon dioxide and water. In the aerobic tank, due to the slow water flow, heavy suspended solids gradually settle at the bottom. These sediments are also known as sludge. Physical sedimentation helps remove suspended solids from wastewater, purifying it.

[0003] Announcement No. "CN218403868U" discloses an aeration mechanism for uniform aeration in wastewater treatment. The mechanism includes a main body comprising a wastewater tank and an aeration frame. A conveying pipe is installed on one side above a blower, and a connecting pipe is installed on one side of the aeration pipe. An air exchange plate is installed above the second connecting pipe, and third connecting pipes are installed on both sides below the connecting plate, with air guide plates installed below the third connecting pipes. This aeration mechanism for uniform aeration in wastewater treatment, by activating the blower, delivers oxygen from the air to the aeration pipe, which then delivers air to the aeration frame. Utilizing the positional relationship between the aeration pipe and the aeration frame, with the aeration frame positioned below the wastewater, the oxygen in the air dissolves in the water, achieving normal aeration. The mesh structure formed by the aeration pipe and connecting pipe allows for large-area contact between the aeration mechanism and the wastewater, improving aeration efficiency and uniformity.

[0004] Although the aforementioned utility model utilizes the mesh structure formed by the aeration pipe and connecting pipe to enable the aeration mechanism to form a large-area contact with the sewage, thereby improving aeration efficiency and uniformity, the aeration disc is fixed to the bottom of the pool for a long time. When the aeration disc becomes clogged, damaged, or needs repair, maintenance personnel need to enter the pool or perform complex underwater operations, which increases the difficulty and cost of maintenance. Moreover, changes in water depth and water pressure will affect the aeration effect and the distribution of bubbles. For fixedly installed aeration discs, their aeration effect will be affected by changes in water depth and water pressure, resulting in uneven aeration or reduced efficiency. Utility Model Content

[0005] In response to the problems mentioned in the background art, the purpose of this utility model is to provide a wastewater treatment device that helps to accurately control the aeration volume of the aerobic tank. This solves the problem that when the aeration discs are fixed to the bottom of the tank for a long time, maintenance personnel need to enter the tank or perform complex underwater operations when the aeration discs become clogged, damaged, or require repair, which increases the difficulty and cost of maintenance. Moreover, changes in water depth and water pressure will affect the aeration effect and the distribution of bubbles. For fixed aeration discs, their aeration effect will be affected by changes in water depth and water pressure, resulting in uneven aeration or reduced efficiency.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A wastewater treatment device that helps to accurately control the aeration volume of an aerobic tank includes an aerobic tank, an installation frame installed inside the aerobic tank, an installation shell fixedly connected inside the installation frame, air pipes fixedly connected symmetrically at equal distances on both sides of the installation shell, aeration discs installed symmetrically at equal distances on the outside of the air pipes, a dissolved oxygen monitor installed inside the aerobic tank, and a lifting component installed on the outside of the aerobic tank.

[0008] The lifting assembly includes a first drive motor, a lead screw, a guide rod, a lifting seat, a connecting rod, a fixing plate, and a fixing rod. Fixing seats are symmetrically fixed to both sides of the aerobic tank. A lead screw and a guide rod are rotatably connected between the fixing seats. The first drive motor is mounted on the top of the fixing seats, and its output end is fixedly connected to the lead screw. Lifting seats are fitted onto the outer sides of both the lead screw and the guide rod. A connecting rod is symmetrically fixed to the top of the lifting seats, and a fixing plate is fixedly connected to the other end of the connecting rod. Fixing rods are symmetrically fixed to the bottom of the fixing plates, and the other end of the fixing rods is fixedly connected to the mounting frame. Mounting seats are fixedly connected between the fixing plates, and an agitator is installed at the bottom of the mounting seats. The movable seat on the outer side of the lead screw is threadedly connected to the lead screw, and the lifting seat on the outer side of the guide rod is slidably connected to the guide rod. Without draining the water and sludge from the tank, the aeration disc can be directly lifted above the water surface for operation. This significantly shortens maintenance time, reduces maintenance costs, and further optimizes factors such as bubble diameter, gas-liquid contact area, and bubble diffusion uniformity, thereby improving oxygen utilization.

[0009] As a preferred technical solution, guide grooves are symmetrically opened on both sides of the aerobic tank, and guide blocks are symmetrically fixedly connected to one side of the lifting seat. The guide blocks and guide grooves are slidably connected. The cooperation between the guide blocks and guide grooves can ensure the stability of the lifting seat during the lifting process, thereby avoiding the shaking or deviation of the lifting seat during the lifting process.

[0010] As a preferred technical solution, the agitation assembly includes a second drive motor, a rotating column, a mounting plate, and agitation rollers. The second drive motor is mounted on the top of the mounting base, and the output end of the second drive motor passes through the mounting base and is fixedly connected to the rotating column. The mounting plate is symmetrically and movably connected to the outside of the rotating column, and agitation rollers are symmetrically and fixedly connected to the outer wall of the mounting plate at equal intervals. By promoting the full mixing of oxygen in the water, the oxygen transmission efficiency is increased, which helps to accelerate the decomposition and degradation of pollutants, thereby improving the wastewater treatment efficiency. Moreover, it can also ensure that the organic matter in the wastewater is in full contact with the microorganisms, improve the decomposition ability of the microorganisms, and enhance the treatment efficiency.

[0011] As a preferred technical solution, the bottom of the rotating column is symmetrically provided with T-shaped grooves, and a T-shaped block is fixedly connected to one side of the mounting plate. The T-shaped block and the T-shaped groove are slidably connected. A knob is installed at the bottom of the rotating column, and a threaded hole is provided at the bottom of the rotating column. A threaded column is fixedly connected to one end of the knob. The threaded column and the threaded hole are threadedly connected. This allows for the periodic replacement of worn stirring rollers, thereby preventing equipment failure due to excessive wear and extending the service life of the entire aerobic tank.

[0012] As a preferred technical solution, an air inlet is installed on the top of the mounting shell, and a telescopic hose is fixedly connected to the top of the air inlet. The air inlet is connected to the air pipe, which can adapt to the displacement and deformation of the aeration disc during the lifting and lowering process, and ensure a stable connection between the aeration disc and the air source.

[0013] In summary, the present invention has the following main advantages:

[0014] First, in this utility model, the first drive motor is started, and the lead screw is controlled to rotate. The lead screw rotates with the lifting seat, thereby controlling the lifting seat to drive the connecting rod and the fixed plate to rise and fall. At the same time, the lifting seat on the other side slides and is limited outside the guide rod. When the fixed plate rises, the fixed plate drives the mounting frame to rise through the fixed rod, thereby driving the air pipe and aeration disc to rise. There is no need to drain the water and sludge in the tank. The aeration disc can be directly lifted above the water surface for operation. This greatly shortens the maintenance time, reduces maintenance costs, and further optimizes factors such as the diameter of the bubbles, the gas-liquid contact area, and the uniformity of bubble diffusion, thereby improving the oxygen utilization rate.

[0015] Secondly, in this utility model, the mounting plate and the rotating column are combined, allowing the T-shaped block of the mounting plate to slide against the T-shaped groove on the outside of the rotating column. Then, the knob is attached to the bottom of the rotating column, and the knob is rotated to make the threaded column and the threaded hole threaded together, completing the installation of the stirring roller. The second drive motor is started to control the rotating column to rotate. The rotating column drives the stirring roller to stir the sewage inside the aerobic tank. By promoting the full mixing of oxygen in the water, the oxygen transmission efficiency is increased, which helps to accelerate the decomposition and degradation of pollutants, thereby improving the wastewater treatment efficiency. Moreover, it can also ensure that the organic matter in the wastewater is in full contact with the microorganisms, improve the decomposition ability of the microorganisms, and enhance the treatment efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is the utility model Figure 1 Enlarged view of part A;

[0018] Figure 3 This is a three-dimensional structural diagram of the aeration disc of this utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the rotating column of this utility model.

[0020] Reference numerals: 1. Aerobic tank; 2. Mounting frame; 3. Mounting shell; 4. Air pipe; 5. Aeration disc; 6. Air inlet; 7. Telescopic hose; 8. Dissolved oxygen monitor; 9. Fixing base; 10. Lifting assembly; 101. First drive motor; 102. Lead screw; 103. Guide rod; 104. Lifting base; 105. Connecting rod; 106. Fixing plate; 107. Fixing rod; 11. Mounting base; 12. Agitator assembly; 121. Second drive motor; 122. Rotating column; 123. Mounting plate; 124. Agitating roller; 13. Guide block; 14. Guide groove; 15. T-block; 16. T-groove; 17. Knob; 18. Threaded hole; 19. Threaded column. Detailed Implementation

[0021] Example

[0022] refer to Figures 1 to 4 The wastewater treatment device described in this embodiment, which helps to accurately control the aeration volume of the aerobic tank, includes an aerobic tank 1, an installation frame 2 installed inside the aerobic tank 1, an installation shell 3 fixedly connected inside the installation frame 2, air pipes 4 fixedly connected at equal distances on both sides of the installation shell 3, and aeration discs 5 installed at equal distances on the outside of the air pipes 4. A dissolved oxygen monitor 8 is installed inside the aerobic tank 1, and a lifting component 10 is installed on the outside of the aerobic tank 1.

[0023] The lifting assembly 10 includes a first drive motor 101, a lead screw 102, a guide rod 103, a lifting seat 104, a connecting rod 105, a fixing plate 106, and a fixing rod 107. Fixing seats 9 are symmetrically fixedly connected to both sides of the aerobic tank 1. A lead screw 102 is rotatably connected to each fixing seat 9, and a guide rod 103 is fixedly connected to each fixing seat 9. The first drive motor 101 is mounted on the top of each fixing seat 9. The output end of the first drive motor 101 is fixedly connected to the lead screw 102. Lifting seats 104 are fitted onto the outer sides of both the lead screw 102 and the guide rod 103. A connecting rod 105 is symmetrically fixedly connected to the top of each lifting seat 104. A fixing plate 106 is fixedly connected to the other end of each connecting rod 105. A fixing rod 107 is symmetrically fixedly connected to the bottom of the fixing plate 106. The other end of each fixing rod 107 is connected to the... The mounting frame 2 is fixedly connected, and the mounting base 11 is fixedly connected between the fixing plates 106. The agitator 12 is installed at the bottom of the mounting base 11. The movable seat on the outer side of the lead screw 102 is threadedly connected to the lead screw 102. The lifting seat 104 on the outer side of the guide rod 103 is slidably connected to the guide rod 103. The first drive motor 101 is started to control the lead screw 102 to rotate. The lead screw 102 and the lifting seat 104 rotate threadedly, thereby controlling the lifting seat 104 to drive the connecting rod 105 and the fixing plate 106 to rise and fall. At the same time, the lifting seat 104 on the other side slides and is limited on the outer side of the guide rod 103. When the fixing plate 106 rises, the fixing plate 106 drives the mounting frame 2 to rise through the fixing rod 107, thereby driving the air pipe 4 and the aeration disc 5 to rise.

[0024] refer to Figure 2 The aerobic tank 1 has symmetrical guide grooves 14 on both sides. The lifting seat 104 has a guide block 13 fixedly connected to one side. The guide block 13 and the guide groove 14 are slidably connected. When the lifting seat 104 is raised or lowered, the lifting seat 104 drives the guide block 13 to slide inside the guide groove 14.

[0025] refer to Figures 3 to 4 The agitation assembly 12 includes a second drive motor 121, a rotating column 122, a mounting plate 123, and an agitating roller 124. The second drive motor 121 is mounted on the top of the mounting base 11. The output end of the second drive motor 121 passes through the mounting base 11 and is fixedly connected to the rotating column 122. The mounting plate 123 is symmetrically and movably connected to the outside of the rotating column 122. The agitating roller 124 is symmetrically and fixedly connected to the outer wall of the mounting plate 123 at equal distances. When the second drive motor 121 is started, the rotating column 122 is controlled to rotate. The rotating column 122 drives the agitating roller 124 to agitate the sewage inside the aerobic tank 1.

[0026] refer to Figure 4The bottom of the rotating column 122 is symmetrically provided with T-shaped grooves 16. A T-shaped block 15 is fixedly connected to one side of the mounting plate 123. The T-shaped block 15 and the T-shaped groove 16 are slidably connected. A knob 17 is installed at the bottom of the rotating column 122. A threaded hole 18 is provided at the bottom of the rotating column 122. A threaded post 19 is fixedly connected to one end of the knob 17. The threaded post 19 and the threaded hole 18 are threadedly connected. The mounting plate 123 and the rotating column 122 are combined so that the T-shaped block 15 of the mounting plate 123 slides with the T-shaped groove 16 on the outside of the rotating column 122. Then the knob 17 is attached to the bottom of the rotating column 122. The knob 17 is rotated so that the threaded post 19 and the threaded hole 18 are threadedly connected, thus completing the installation of the stirring roller 124.

[0027] refer to Figure 3 The top of the housing 3 is equipped with an air inlet 6, and a telescopic hose 7 is fixedly connected to the top of the air inlet 6. The air inlet 6 is connected to the air pipe 4. It can be connected to the aerator through the telescopic hose 7. Then the gas is dispersed into bubbles through the aeration disc 5 and released into the water.

[0028] Operating principle and advantages: First, the aerator can be connected through the telescopic hose 7. Then, the gas is dispersed into bubbles through the aeration disc 5 and released into the water. Then, the second drive motor 121 is started to control the rotating column 122 to rotate. The rotating column 122 drives the stirring roller 124 to stir the sewage inside the aerobic tank 1. After the water treatment is completed, the first drive motor 101 is started to control the lead screw 102 to rotate. The lead screw 102 rotates with the lifting seat 104, thereby controlling the lifting seat 104 to drive the connecting rod 105 and the fixed plate 106 to rise and fall. At the same time, the lifting seat 104 on the other side slides and is limited outside the guide rod 103. When the fixed plate 106 rises, the fixed plate 106 drives the mounting frame 2 to rise through the fixed rod 107, thereby causing the mounting frame 2 to drive the air pipe 4 and the aeration disc 5 to rise.

[0029] This invention eliminates the need to drain the water and sludge from the tank, allowing the aeration disc 5 to be directly raised above the water surface for operation. This significantly shortens maintenance time, reduces maintenance costs, and further optimizes factors such as bubble diameter, gas-liquid contact area, and bubble diffusion uniformity, thereby improving oxygen utilization.

Claims

1. A sewage treatment device that helps to precisely control the aeration quantity of an aerobic tank, comprising an aerobic tank (1), characterized in that: The inside of the aerobic tank (1) is provided with a mounting frame (2), the inside of the mounting frame (2) is fixedly connected with a mounting shell (3), the two sides of the mounting shell (3) are fixedly and symmetrically connected with air pipes (4), the outer sides of the air pipes (4) are fixedly and symmetrically provided with aerators (5), the inside of the aerobic tank (1) is provided with a dissolved oxygen monitor (8), and the outer side of the aerobic tank (1) is provided with a lifting assembly (10). The lifting assembly (10) comprises a first driving motor (101), a lead screw (102), a guide rod (103), a lifting seat (104), a connecting rod (105), a fixed plate (106) and a fixed rod (107), the two sides of the aerobic tank (1) are fixedly and symmetrically connected with fixed seats (9), the lead screw (102) and the guide rod (103) are rotatably and fixedly connected between the fixed seats (9), respectively, the top of the fixed seat (9) is provided with the first driving motor (101), the output end of the first driving motor (101) is fixedly connected with the lead screw (102), the outer sides of the lead screw (102) and the guide rod (103) are both provided with the lifting seat (104), the top of the lifting seat (104) is fixedly and symmetrically connected with the connecting rod (105), the other end of the connecting rod (105) is fixedly connected with the fixed plate (106), the bottom of the fixed plate (106) is fixedly and symmetrically connected with the fixed rod (107), the other end of the fixed rod (107) is fixedly connected with the mounting frame (2), the fixed plate (106) is fixedly connected with a mounting seat (11) between the fixed plate (106), and the mounting seat (11) is provided with a stirring assembly (12).

2. The sewage treatment device of claim 1, wherein: The outer side moving seat of the lead screw (102) is in threaded connection with the lead screw (102), and the outer side lifting seat (104) of the guide rod (103) is in sliding connection with the guide rod (103).

3. The sewage treatment device of claim 1, wherein the device further comprises a control system configured to control the aeration rate of the aerobic tank. The two sides of the aerobic tank (1) are symmetrically provided with guide grooves (14), and one side of the lifting seat (104) is fixedly and symmetrically connected with guide blocks (13).

4. The sewage treatment device of claim 3, wherein the device further comprises a control system configured to control the aeration rate of the aerobic tank. The guide blocks (13) are in sliding connection with the guide grooves (14).

5. The device for precise control of the amount of aeration in an aerobic tank according to claim 1, characterized in that: The stirring assembly (12) comprises a second driving motor (121), a rotating column (122), a mounting plate (123) and stirring rollers (124), the top of the mounting seat (11) is provided with the second driving motor (121), the output end of the second driving motor (121) penetrates through the mounting seat (11) and is fixedly connected with the rotating column (122), the outer sides of the rotating column (122) are symmetrically movably connected with the mounting plate (123), and the outer side walls of the mounting plate (123) are fixedly and symmetrically connected with the stirring rollers (124).

6. The sewage treatment device of claim 5, wherein: The bottom of the rotating column (122) is symmetrically provided with T-shaped grooves (16), and one side of the mounting plate (123) is fixedly connected with T-shaped blocks (15).

7. The sewage treatment device of claim 6, wherein the device further comprises a control system configured to control the aeration rate of the aerobic tank. The T-shaped blocks (15) are in sliding connection with the T-shaped grooves (16).

8. The sewage treatment device of claim 7, wherein the device further comprises a control system configured to control the aeration rate of the aerobic tank. The bottom of the rotating column (122) is provided with a knob (17), the bottom of the rotating column (122) is provided with a threaded hole (18), and one end of the knob (17) is fixedly connected with a threaded column (19).

9. The sewage treatment device of claim 8, wherein the device further comprises a control system configured to control the aeration rate of the aerobic tank. The threaded column (19) is in threaded connection with the threaded hole (18).

10. The sewage treatment device of claim 1, wherein: The installation shell (3) top is provided with an air inlet (6), the top of the air inlet (6) is fixedly connected with a telescopic hose (7), the air inlet (6) is communicated with the air pipe (4).

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