Contact oxidation pond structure and wastewater treatment system

Abstract

The utility model discloses a contact oxidation pond structure and wastewater treatment system, relates to wastewater treatment technical field, including oxidation pond subassembly and aeration subassembly, the inside of oxidation pond subassembly vertically inserts the grid pipe, the lower end of aeration subassembly inserts the inside of grid pipe, and the one side of aeration subassembly is connected with drive subassembly. According to the contact oxidation pond structure and the wastewater treatment system, the aeration assembly is vertically inserted into the oxidation pond assembly by adopting an insertion structure, so that on one hand, the aeration effect can be ensured to the greatest extent when a water body passes through a filler area in the oxidation pond assembly; the aeration assembly inserted into the oxidation pond assembly can be lifted through the structure through the combined use of the driving assembly and the auxiliary frame group, so that the equipment structure maintenance is facilitated, and the normal operation of the aeration assembly is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, and particularly relates to a contact oxidation tank structure and a wastewater treatment system. Background Technique

[0002] A sewage treatment system is the general term for an overall combination of various structures that jointly complete sewage treatment in a certain order according to their functions. For example, a biological sewage treatment system, also known as a "sewage biological treatment system", refers to the sequential combination of unit treatment processes such as a grille, a primary sedimentation tank, biological treatment structures such as an aeration tank and a biological contact oxidation tank, and a secondary sedimentation tank to jointly complete sewage treatment;

[0003] A contact oxidation tank is a biological treatment device. The contact oxidation tank, that is, a biological contact oxidation tank, is an oxidation tank composed of a tank body, packing, a water distribution device, and an aeration device. It is usually used for sewage treatment and water quality purification. By setting packing in the aeration tank as the carrier of the biological film, the wastewater to be treated flows through the packing at a certain flow rate after being aerated, contacts with the biological film, and the biological film and the suspended activated sludge act together. It uses microorganisms (such as bacteria) to contact with the organic substances in the sewage, thereby converting the organic substances into harmless substances such as carbon dioxide and water to achieve the effect of purifying the wastewater;

[0004] The working principle of the contact oxidation tank is to mix microorganisms with sewage, and through aeration and stirring, make the microorganisms fully contact with the organic substances in the sewage, thereby degrading the organic substances. In this process, the microorganisms will consume oxygen and organic substances, generate energy, and promote their own growth and reproduction. As time goes by, the organic substances in the sewage are gradually degraded and the water quality is purified. In purification treatment, the contact oxidation tank can be used to treat various water sources, such as river water, lake water, groundwater, etc. Through the treatment of the contact oxidation tank, harmful substances such as organic matter, ammonia nitrogen, and phosphorus in the water can be removed, and the water quality can be improved.

[0005] The aeration device inside the conventional contact oxidation tank is buried deep at the bottom of the entire aeration tank. As the use time accumulates, when problems occur in its pipelines, due to the factors of the structural setting, the maintenance work is relatively cumbersome and time-consuming.

[0006] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a contact oxidation tank structure and a wastewater treatment system are proposed. Content of the Utility Model

[0007] The purpose of the utility model is to provide a contact oxidation tank structure and a wastewater treatment system to solve the problems raised in the above background technique.

[0008] To achieve the above object, the present utility model provides the following technical solutions: A contact oxidation tank structure and a wastewater treatment system, including an oxidation tank assembly and an aeration assembly. A grid pipe is vertically inserted inside the oxidation tank assembly. The lower end of the aeration assembly is inserted inside the grid pipe, and a driving assembly is connected to one side of the aeration assembly. Moreover, an auxiliary frame group is connected to the side of the aeration assembly away from the driving assembly. The aeration assembly includes a connecting pipe rack, an external air valve, an air delivery branch pipe, and air holes. External air valves are connected to both the left and right sides of the connecting pipe rack. The bottom of the connecting pipe rack is vertically and arrayed with air delivery branch pipes, and air holes are equidistantly arranged on the surface of the air delivery branch pipes.

[0009] Further, the oxidation tank assembly includes an integrated closed tank, a grid support, a filter plate, an inlet valve, and a drain valve. Grid supports are horizontally installed at both the upper and lower ends inside the integrated closed tank. A filter plate is arranged near the top opening inside the integrated closed tank. Inlet valves are installed at the bottom of both the left and right sides of the integrated closed tank, and drain valves are installed at the upper ends of both the front and rear sides of the integrated closed tank.

[0010] Further, the grid support is arranged in a "cross"-shaped grid structure. The output end of the inlet valve is arranged below the grid support at the bottom of the integrated closed tank. The grid pipes are vertically and arrayed and inserted between the holes of the grid support, and the grid pipes vertically penetrate through the middle of the filter plate.

[0011] Further, the driving assembly includes a first pipe rack, a lead screw, a support frame, and a servo motor. Lead screws are vertically and threadedly connected to both the left and right sides of the first pipe rack. A support frame is vertically installed on the side of the lead screw away from the first pipe rack, and a servo motor is installed on the top of the support frame.

[0012] Further, the top of the lead screw is connected to the bottom power output end of the servo motor through a coupling. The lead screw is parallel to the support frame, and an "H"-shaped structure is formed between the first pipe rack and the lead screw.

[0013] Further, the auxiliary frame group includes a stabilizing frame, a guide rail, and a second pipe rack. A guide rail is vertically installed inside the stabilizing frame, and the second pipe rack is slidably connected to the surface of the guide rail.

[0014] Further, the surface structure of the second pipe rack on the side close to the aeration assembly is the same as that of the first pipe rack. The guide rail and the stabilizing frame are symmetrically arranged on both the left and right sides of the second pipe rack.

[0015] A wastewater treatment system, which is installed with the contact oxidation tank structure as described above.

[0016] The present utility model provides a contact oxidation tank structure and a wastewater treatment system, which have the following beneficial effects:

[0017] 1. In this utility model, a number of gas delivery branch pipes are vertically installed in an array at the lower end of the connecting pipe rack. After the entire aeration assembly is vertically inserted into the oxidation tank assembly, it can make uniform and relatively sufficient contact with the packing between the upper and lower grid brackets, enabling the entire aeration assembly to inject oxygen into the interior of the entire packing in the most uniform and effective manner to the greatest extent, thereby ensuring the effect of aeration oxidation. At the same time, in cooperation with the use of a number of grid pipes arranged in an array as well, on the one hand, it enables the entire oxidation tank assembly to be flexibly inserted and removed from the interior of the seasoning, and on the other hand, under the shielding of the grid pipe structure, it can prevent the packing from blocking the air holes. Moreover, it will not affect the contact between the aeration assembly and the water body and the packing. Additionally, for the grid bracket with a "cross"-shaped grid structure, by using its two sets of structures symmetrically arranged up and down, the grid pipes can be stably and neatly arranged in an array inside the entire oxidation tank assembly, avoiding structural deviation that may affect the extraction or insertion of the aeration assembly. Furthermore, the setting of the filter plate enables the inlet valve to effectively filter the impurities floating in the water body as much as possible when pumping water at a fixed water layer.

[0018] 2. In this utility model, a driving assembly and an auxiliary frame group are arranged on both sides of the aeration assembly. The entire aeration assembly is respectively connected to the driving assembly and the auxiliary frame group through the first pipe rack and the second pipe rack. Therefore, under the operation of the servo motor, the lead screw connected thereto will perform axial rotation in the vertical direction, thereby driving the aeration assembly connected to it through the first pipe rack to vertically translate along the surface of the lead screw. At the same time, to ensure the smoothness of the structural movement, the second pipe rack at the other end of the aeration assembly will synchronously slide along the surface of the guide rail, enabling the entire aeration assembly to be smoothly lifted and lowered. By using the above structure, the aeration assembly inserted into the oxidation tank assembly can be adjusted within a certain range according to needs for the insertion depth, and at the same time, the entire aeration assembly can be lifted from the oxidation tank assembly according to needs, so as to facilitate the maintenance of the gas delivery branch pipes by the operators, thereby ensuring the effect of aeration oxidation treatment inside the oxidation tank assembly and preventing the air holes for delivering oxygen from being blocked or even damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the body of a contact oxidation tank structure and wastewater treatment system of the present utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the oxidation tank assembly of a contact oxidation tank structure and wastewater treatment system of the present utility model;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the aeration assembly of a contact oxidation tank structure and wastewater treatment system of the present utility model;

[0022] Figure 4This is a three-dimensional structural schematic diagram of the driving component of a contact oxidation tank structure and a wastewater treatment system of the present utility model;

[0023] Figure 5 This is a three-dimensional structural schematic diagram of the auxiliary frame group of a contact oxidation tank structure and a wastewater treatment system of the present utility model.

[0024] In the figure: 1. Oxidation tank assembly; 101. Integrated closed tank; 102. Grid support; 103. Filter plate; 104. Inlet valve; 105. Drain valve; 2. Mesh pipe; 3. Aeration assembly; 301. Connecting pipe rack; 302. External air valve; 303. Air delivery branch pipe; 304. Aeration hole; 4. Driving component; 401. First pipe rack; 402. Lead screw; 403. Support frame; 404. Servo motor; 5. Auxiliary frame group; 501. Stabilizing frame; 502. Guide rail; 503. Second pipe rack. Specific implementation mode

[0025] The following further describes in detail the implementation mode of the present utility model with reference to the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0026] Such as Figures 1 to 5As shown, a contact oxidation tank structure and a wastewater treatment system include an oxidation tank assembly 1 and an aeration assembly 3. A grid pipe 2 is vertically inserted inside the oxidation tank assembly 1. The lower end of the aeration assembly 3 is inserted inside the grid pipe 2, and a driving assembly 4 is connected to one side of the aeration assembly 3. Moreover, an auxiliary frame group 5 is connected to the side of the aeration assembly 3 away from the driving assembly 4. The aeration assembly 3 includes a connecting pipe rack 301, an external air valve 302, an air delivery branch pipe 303, and an air diffusion hole 304. External air valves 302 are connected to both the left and right sides of the connecting pipe rack 301. The air delivery branch pipes 303 are vertically arrayed at the bottom of the connecting pipe rack 301, and air diffusion holes 304 are equidistantly arranged on the surface of the air delivery branch pipes 303. The oxidation tank assembly 1 includes an integrated closed tank 101, a grid support 102, a filter plate 103, a water inlet valve 104, and a drain valve 105. Grid supports 102 are horizontally installed at both the upper and lower ends inside the integrated closed tank 101. A filter plate 103 is arranged near the top opening inside the integrated closed tank 101. Water inlet valves 104 are installed at the bottom of both the left and right sides of the integrated closed tank 101. Drain valves 105 are installed at the upper ends of both the front and back sides of the integrated closed tank 101. The grid support 102 is arranged in a "cross"-shaped grid structure. The output end of the water inlet valve 104 is arranged below the grid support 102 at the bottom of the integrated closed tank 101. The grid pipes 2 are vertically arrayed and inserted between the holes of the grid support 102, and the grid pipes 2 vertically penetrate through the middle of the filter plate 103. By using a number of vertically arrayed air delivery branch pipes 303 installed vertically at the lower end of the connecting pipe rack 301, after the entire aeration assembly 3 is vertically inserted into the oxidation tank assembly 1, it can make uniform and relatively sufficient contact with the packing between the upper and lower grid supports 102. At the same time, in cooperation with the use of a number of grid pipes 2 arranged in an array, on the one hand, the entire oxidation tank assembly 1 can be flexibly inserted and removed from the inside of the packing, and on the other hand, under the shielding of the structure of the grid pipes 2, it can prevent the packing from blocking the air diffusion holes 304.

[0027] As Figures 1 to 5As shown in the figure, the driving component 4 includes a first pipe support 401, a lead screw 402, a support frame 403 and a servo motor 404. The left and right sides of the first pipe support 401 are vertically and threadedly connected with lead screws 402. One side of the lead screw 402 away from the first pipe support 401 is vertically installed with a support frame 403. Moreover, a servo motor 404 is installed on the top of the support frame 403. The top of the lead screw 402 is connected to the bottom power output end of the servo motor 404 through a coupling. The lead screw 402 is parallel to the support frame 403. Moreover, the structure between the first pipe support 401 and the lead screw 402 is in an "H" shape. The auxiliary frame group 5 includes a stabilizing frame 501, a guide rail 502 and a second pipe support 503. A guide rail 502 is vertically installed inside the stabilizing frame 501. The surface of the guide rail 502 is slidably connected with a second pipe support 503. The second pipe support 503 has the same surface structure as the side of the first pipe support 401 close to the aeration component 3. The guide rail 502 and the stabilizing frame 501 are symmetrically arranged on the left and right sides of the second pipe support 503. Under the operation of the servo motor 404, the connected lead screw 402 will rotate axially in the vertical direction, thereby driving the aeration component 3 connected to it through the first pipe support 401 to vertically translate along the surface of the lead screw 402. At the same time, to ensure the smooth movement of the structure, the second pipe support 503 at the other end of the aeration component 3 will synchronously slide along the surface of the guide rail 502, so that the entire aeration component 3 can be smoothly lifted and adjusted.

[0028] A wastewater treatment system, which is installed with the contact oxidation tank structure as described above. The collaborative use of the above-mentioned various structures can, on the one hand, provide flexible structural operability for the operation of the entire wastewater treatment system, effectively guarantee the service life of the entire device while facilitating equipment maintenance, and on the other hand, also improve the operation fluency, stability and effectiveness of the entire wastewater treatment system for wastewater purification treatment.

[0029] To sum up, as Figures 1 to 5 shown, when using the contact oxidation tank structure and the wastewater treatment system, first, the entire oxidation tank component 1 is respectively connected to the upstream sewage treatment equipment and the downstream treatment equipment through pipelines by using the inlet valve 104 and the drain valve 105. At the same time, the entire aeration component 3 is connected to the oxygen supply equipment through pipelines by using the external air valves 302 on both sides of the connecting pipe support 301;

[0030] With the transportation of the inlet valve 104, sewage will enter from the bottom of the oxidation tank assembly 1 and gradually fill the entire integrated closed tank 101. During this process, with the transportation of the connecting pipe rack 301 and the external air valve 302, oxygen will be successively transmitted into the interior of several air delivery branch pipes 303 and injected into the packing between the upper and lower grid brackets 102 and the gradually filled wastewater from the surface air holes 304, thus starting the gradual biological oxidation reaction, enabling the microorganisms to fully contact the organic substances in the sewage, thereby degrading the organic substances. Finally, a fixed water layer will form on the outermost surface of the water body, and under the action of the filter plate 103, large particle floating substances will be blocked and filtered, and then enter the downstream wastewater treatment device for further treatment under the transportation of the drain valve 105;

[0031] When maintenance is required for the aeration assembly 3, at this time, only need to start the servo motor 404 installed on the top of the support frame 403. Under its operation, the lead screw 402 connected to its power output end will rotate axially in the vertical direction, thereby driving the aeration assembly 3 connected to it through the first pipe rack 401 to vertically translate along the surface of the lead screw 402. At the same time, to ensure the smoothness of the structural movement, at this time, the second pipe rack 503 at the other end of the aeration assembly 3 will synchronously slide along the surface of the guide rail 502, lifting the entire aeration assembly 3 smoothly and extracting it from the inside of the grid pipe 2, so as to facilitate the maintenance and inspection by the operators.

[0032] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described to better illustrate the principles of the present invention and its practical applications, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

Claims

1. A contact oxidation tank structure, comprising an oxidation tank assembly (1) and an aeration assembly (3), characterized in that: Inside the oxidation pond assembly (1), a grid pipe (2) is vertically inserted. The lower end of the aeration assembly (3) is inserted into the inside of the grid pipe (2), and a drive assembly (4) is connected to one side of the aeration assembly (3). Moreover, an auxiliary support group (5) is connected to the side of the aeration assembly (3) away from the drive assembly (4). The aeration assembly (3) includes a connecting pipe rack (301), an external air valve (302), an air delivery branch pipe (303), and air holes (304). External air valves (302) are connected to both the left and right sides of the connecting pipe rack (301), and air delivery branch pipes (303) are vertically arranged in an array at the bottom of the connecting pipe rack (301). Moreover, air holes (304) are equidistantly arranged on the surface of the air delivery branch pipes (303).

2. The structure of a biological contact oxidation tank according to claim 1, wherein The oxidation pond assembly (1) includes an integrated closed pond (101), a grid support (102), a filter plate (103), a water inlet valve (104), and a drain valve (105). Grid supports (102) are horizontally installed at both the upper and lower ends inside the integrated closed pond (101). A filter plate (103) is arranged near the top opening inside the integrated closed pond (101). Moreover, water inlet valves (104) are installed at the bottom on both the left and right sides of the integrated closed pond (101), and drain valves (105) are installed at the upper ends on both the front and back sides of the integrated closed pond (101).

3. The structure of a biological contact oxidation tank according to claim 2, characterized in that, The grid support (102) is arranged in a "cross"-shaped grid structure. The output end of the water inlet valve (104) is arranged below the grid support (102) at the bottom of the integrated closed pond (101). Moreover, grid pipes (2) are vertically arranged in an array and inserted between the holes of the grid support (102), and the grid pipes (2) vertically penetrate through the middle of the filter plate (103).

4. A contact oxidation tank structure according to claim 1, characterized in that, The drive assembly (4) includes a first pipe rack (401), a lead screw (402), a support frame (403), and a servo motor (404). Lead screws (402) are vertically and threadedly connected to both the left and right sides of the first pipe rack (401). A support frame (403) is vertically installed on the side of the lead screw (402) away from the first pipe rack (401). Moreover, a servo motor (404) is installed at the top of the support frame (403).

5. The structure of a biological contact oxidation tank according to claim 4, wherein, The top of the lead screw (402) is connected to the bottom power output end of the servo motor (404) through a coupling. The lead screw (402) is parallel to the support frame (403). Moreover, a "H"-shaped structure is formed between the first pipe rack (401) and the lead screw (402).

6. The structure of a contact oxidation tank according to claim 5, characterized in that, The auxiliary support group (5) includes a stabilizing frame (501), a guide rail (502), and a second pipe rack (503). A guide rail (502) is vertically installed inside the stabilizing frame (501), and a second pipe rack (503) is slidably connected to the surface of the guide rail (502).

7. A contact oxidation tank structure according to claim 6, characterized in that, The surface structure of the second pipe rack (503) is the same as that of the side of the first pipe rack (401) close to the aeration assembly (3). The guide rail (502) and the stabilizing frame (501) are symmetrically arranged on both the left and right sides of the second pipe rack (503).

8. A wastewater treatment system, characterized in that: This wastewater treatment system is installed with the contact oxidation pond structure as described in any one of claims 1-7.

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