Biochemical tank for sewage treatment

Abstract

The utility model relates to a biochemical pond for sewage treatment, including the pond body, the top of pond body is equipped with the support, the support is equipped with oxford cloth, the oxford cloth bottom surface fixed mounting is with one side is the collection box of opening, the support is equipped with the movement component for pulling oxford cloth and moving along the length direction of pond body. Purpose at in a kind of biochemical pond for sewage treatment, to solve the scum in sewage in prior art can stay in the formation of scum layer under the adsorption of algae in aerobic zone, make oxygen diffusion resistance increase, lead to the biological available oxygen concentration of ammonia-oxidizing bacteria and nitrite-oxidizing bacteria habitat area reduces, make the problem of denitrification efficiency reduction.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a biochemical tank for wastewater treatment. Background Technology

[0002] In wastewater treatment, biological denitrification is one of the core processes for removing nitrogen pollutants from water bodies. Its principle primarily relies on the nitrification and denitrification processes of microorganisms. The nitrification process (converting ammonia nitrogen into nitrite and nitrate) requires aerobic conditions and is completed by ammonia-oxidizing bacteria and nitrite-oxidizing bacteria; while the denitrification process (reducing nitrate to nitrogen gas) depends on denitrifying bacteria in anoxic environments. Traditional activated sludge processes and improved processes (such as A / O and A2 / O) achieve efficient nitrogen removal by controlling dissolved oxygen (DO) concentration in different zones. The aerobic zone, as the core area of ​​the nitrification reaction, directly determines the system's denitrification performance through its operational stability and efficiency.

[0003] However, in traditional activated sludge processes (such as the A2 / O process), the aerobic zone is often an open or semi-open tank, which can lead to abnormal algal proliferation under the influence of light, increased temperature, or excess nutrients. Furthermore, scum in the wastewater will adhere to the aerobic zone through algal adsorption, forming a scum layer. This increases resistance to oxygen diffusion, resulting in a decrease in the bioavailable oxygen concentration in the habitat of ammonia-oxidizing and nitrite-oxidizing bacteria, thus reducing denitrification efficiency. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a biological treatment tank for sewage treatment, so as to solve the problem in the prior art that the scum in sewage will remain in the aerobic zone under the adsorption of algae and form a scum layer, which increases the resistance to oxygen diffusion, resulting in a decrease in the bioavailable oxygen concentration in the habitat of ammonia oxidizing bacteria and nitrite oxidizing bacteria, and thus reducing the denitrification efficiency.

[0005] This utility model is achieved through the following technical solution:

[0006] A biochemical tank for sewage treatment includes a tank body, a support mounted on the top of the tank body, an Oxford cloth mounted on the support, a collection box with an opening on one side fixedly mounted on the bottom surface of the Oxford cloth, and a moving component mounted on the support for pulling the Oxford cloth to move along the length of the tank body.

[0007] Furthermore, the movable component includes a first rotating shaft and a second rotating shaft rotatably connected to both sides of the bracket. A pull rope is wound around the first rotating shaft, one end of which is fixedly connected to Oxford cloth. The Oxford cloth is wound onto the second rotating shaft. A drive component for driving the first rotating shaft and the second rotating shaft to rotate in the same direction is installed on the bracket.

[0008] Furthermore, the drive assembly includes a transmission belt tensioned on a first rotating shaft and a second rotating shaft, and a motor fixedly connected to a bracket, wherein the output shaft of the motor is fixedly connected to the first rotating shaft.

[0009] Furthermore, sprockets are fixedly connected to both the first and second rotating shafts, and the transmission belt is a chain that meshes with the two sprockets.

[0010] Furthermore, a connecting plate is fixedly connected to the side of the Oxford cloth near the pull cord, and a groove adapted to the connecting plate is provided on the bracket, and the connecting plate is slidably connected in the groove.

[0011] Furthermore, the collection box is located below the connecting plate, a sleeve is fixedly connected to the top of the collection box, a connecting rod is fixedly connected to the bottom of the connecting plate, the connecting rod is slidably connected inside the sleeve, and a locking assembly is installed between the sleeve and the connecting rod.

[0012] Furthermore, the locking assembly includes a locking nut, and the end of the sleeve near the connecting rod has a notch extending along the length of the sleeve and is cut with an external thread that matches the locking nut. When the sleeve and the connecting rod are locked, the locking nut is threadedly connected to the sleeve.

[0013] Furthermore, the cross-section of the collection box is a right-angled trapezoid, and the inclined surface of the collection box faces downward.

[0014] Furthermore, a baffle is fixedly connected inside the collection box, and the baffle is located at the bottom of the opening side of the collection box.

[0015] Furthermore, the upper edge of the baffle is serrated.

[0016] The beneficial effects of this utility model are as follows:

[0017] This biological treatment tank for wastewater uses a movable component to move an Oxford cloth along the length of the tank. As the Oxford cloth moves along the tank's length, it also moves a collection box along the same length. During this movement, suspended solids in the tank enter the collection box from one side of its opening. Compared to existing technologies, covering the water surface with the Oxford cloth reduces light exposure, inhibiting algae growth. Furthermore, the movement of the Oxford cloth causes the collection box to remove scum and algae. After removal, oxygen diffusion resistance is reduced, increasing the bioavailable oxygen concentration in the habitat areas of ammonia-oxidizing and nitrite-oxidizing bacteria, thus improving denitrification efficiency.

[0018] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0019] Figure 1 The three-dimensional representation of this utility model Figure 1 ;

[0020] Figure 2 The three-dimensional representation of this utility model Figure 2 ;

[0021] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0022] Figure 4 This is a schematic diagram showing the connection between the Oxford cloth and the second rotating shaft of this utility model;

[0023] Figure 5 This is a schematic diagram showing the connection between the collection box and the baffle of this utility model.

[0024] In the picture:

[0025] 1. Pool body; 2. Support frame; 3. Oxford cloth; 4. Collection box; 5. Moving assembly; 6. First rotating shaft; 7. Second rotating shaft; 8. Pull rope; 9. Drive assembly; 10. Transmission belt; 11. Motor; 12. Sprocket; 13. Connecting plate; 14. Groove; 15. Sleeve; 16. Connecting rod; 17. Locking assembly; 18. Locking nut; 19. Notch; 20. External thread; 21. Baffle. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0031] Please see Figure 1-5 This utility model provides a technical solution: a biochemical tank for sewage treatment, including a tank body 1, a support 2 installed on the top of the tank body 1, an Oxford cloth 3 installed on the support 2, a collection box 4 with an opening on one side fixedly installed on the bottom surface of the Oxford cloth 3, and a moving component 5 installed on the support 2 for pulling the Oxford cloth 3 to move along the length direction of the tank body 1.

[0032] In this design, the side walls of the collection tank 4 are all mesh structures to reduce the resistance of the collection tank 4 in the water.

[0033] In use, the Oxford cloth 3 is moved along the length of the pool body 1 by the moving component 5. As the Oxford cloth 3 moves along the length of the pool body 1, it also moves the collection box 4 along the length of the pool body 1. During the movement of the collection box 4 along the length of the pool body 1, suspended matter in the pool body 1 enters the collection box 4 from one side of the opening.

[0034] Compared to existing technologies, covering the water surface of pool 1 with Oxford cloth 3 can reduce light exposure, thereby inhibiting algae growth. Furthermore, as Oxford cloth 3 moves, it drives the collection box 4 to remove scum and algae. After the scum and algae are removed, the resistance to oxygen diffusion is reduced, and the bioavailable oxygen concentration in the habitat of ammonia oxidizing bacteria and nitrite oxidizing bacteria is increased, thus improving denitrification efficiency.

[0035] In this embodiment: the moving component 5 includes a first rotating shaft 6 and a second rotating shaft 7 respectively rotatably connected to both sides of the bracket 2. A pull rope 8 is wound on the first rotating shaft 6. One end of the pull rope 8 is fixedly connected to the Oxford cloth 3. The Oxford cloth 3 is wound on the second rotating shaft 7. A drive component 9 for driving the first rotating shaft 6 and the second rotating shaft 7 to rotate in the same direction is installed on the bracket 2.

[0036] In this solution: the moving component 5 includes a first rotating shaft 6 and a second rotating shaft 7 rotatably connected to both sides of the bracket 2 respectively. A pull rope 8 is wound on the first rotating shaft 6. One end of the pull rope 8 is fixedly connected to the Oxford cloth 3. The Oxford cloth 3 is wound on the second rotating shaft 7. A drive component 9 for driving the first rotating shaft 6 and the second rotating shaft 7 to rotate in the same direction is installed on the bracket 2.

[0037] Driven by the drive assembly 9, the first rotating shaft 6 and the second rotating shaft 7 rotate clockwise in the same direction. The first rotating shaft 6 drives the Oxford cloth 3 to unwind and the second rotating shaft 7 drives the pull rope 8 to wind up. During the unwinding process of the Oxford cloth 3, the collection box 4 moves along the length of the pool body 1, providing shade while cleaning the suspended matter on the surface of the pool body 1.

[0038] The drive assembly 9 drives the first rotating shaft 6 and the second rotating shaft 7 to rotate counterclockwise in the same direction. The first rotating shaft 6 drives the Oxford cloth 3 to roll up and the second rotating shaft 7 drives the pull rope 8 to unroll, making it easy to use next time.

[0039] During the rotation in the same direction, the first rotating shaft 6 and the second rotating shaft 7 work together to make the Oxford cloth 3 move smoothly and reduce jamming or wrinkles.

[0040] In this embodiment: the drive assembly 9 includes a transmission belt 10 tensioned on the first rotating shaft 6 and the second rotating shaft 7 and a motor 11 fixedly connected to the bracket 2, wherein the output shaft of the motor 11 is fixedly connected to the first rotating shaft 6.

[0041] In this design: a transmission belt 10 is tensioned on the first rotating shaft 6 and the second rotating shaft 7, and a motor 11 is fixedly connected to the bracket 2. The output shaft of the motor 11 is fixedly connected to the first rotating shaft 6. The motor 11 is electrically connected to a controller. The model of the motor 11 can be ZMYB-380-165, and the model of the controller can be JR-02S.

[0042] The controller controls the output shaft of motor 11 to rotate clockwise. During the clockwise rotation of the output shaft of motor 11, the first rotating shaft 6 and the second rotating shaft 7 rotate clockwise in the same direction. The first rotating shaft 6 drives the Oxford cloth 3 to unwind and the second rotating shaft 7 drives the pull rope 8 to wind up. During the unwinding process of Oxford cloth 3, the collection box 4 moves along the length of pool 1, providing shade while cleaning the suspended matter on the surface of pool 1.

[0043] The controller controls the output shaft of motor 11 to rotate counterclockwise. During the counterclockwise rotation of the output shaft of motor 11, the first rotating shaft 6 and the second rotating shaft 7 rotate counterclockwise in the same direction. The first rotating shaft 6 drives the Oxford cloth 3 to be wound up and the second rotating shaft 7 drives the pull rope 8 to be unwound, making it convenient for the next use.

[0044] In this embodiment: sprockets 12 are fixedly connected to both the first rotating shaft 6 and the second rotating shaft 7, and the transmission belt 10 is a chain, which meshes with the two sprockets 12.

[0045] In this design: sprockets 12 are fixedly connected to both the first rotating shaft 6 and the second rotating shaft 7. The transmission belt 10 is a chain, and the chain meshes with the two sprockets 12. The meshing transmission between the sprockets 12 and the chain reduces speed deviation compared to ordinary belt drives, allowing the Oxford cloth 3 to move at a uniform speed.

[0046] In this embodiment: a connecting plate 13 is fixedly connected to the side of the Oxford cloth 3 near the pull cord 8, and a groove 14 adapted to the connecting plate 13 is provided on the bracket 2, and the connecting plate 13 is slidably connected in the groove 14.

[0047] In this design: the Oxford cloth 3 is fixedly connected to the connecting plate 13 on the side near the pull rope 8. A groove 14 adapted to the connecting plate 13 is provided on the bracket 2, and the connecting plate 13 is slidably connected within the groove 14. The sliding of the connecting plate 13 within the groove 14 restricts the vertical displacement of the Oxford cloth 3, allowing it to move more smoothly along the length of the pool body 1. As the Oxford cloth 3 moves the collection box 4 along the length of the pool body 1, the collection box 4 remains at the desired depth in the water.

[0048] In this embodiment: the collection box 4 is located below the connecting plate 13, the top of the collection box 4 is fixedly connected to the sleeve 15, the bottom of the connecting plate 13 is fixedly connected to the connecting rod 16, the connecting rod 16 is slidably connected inside the sleeve 15, and a locking assembly 17 is installed between the sleeve 15 and the connecting rod 16.

[0049] In this design: the collection box 4 is positioned below the connecting plate 13, with a sleeve 15 fixedly connected to the top of the collection box 4. The bottom of the connecting plate 13 is fixedly connected to the connecting rod 16, and the connecting rod 16 is slidably connected within the sleeve 15. A locking assembly 17 is installed between the sleeve 15 and the connecting rod 16. Unlocking the locking assembly 17 allows the sleeve to slide along the length of the connecting rod 16, and then the locking assembly 17 locks the relative position of the sleeve and the connecting rod 16. During the sliding of the sleeve along the length of the connecting rod 16, the collection box 4 moves, allowing it to be positioned at different depths in the water as it moves along the length of the pool 1, facilitating the installation and replacement of the collection box 4.

[0050] In this embodiment: the locking assembly 17 includes a locking nut 18. The sleeve 15 has a notch 19 extending along the length of the sleeve 15 at one end near the connecting rod 16 and is cut with an external thread 20 that matches the locking nut 18. When the sleeve 15 and the connecting rod 16 are locked, the locking nut 18 is threadedly connected to the sleeve 15.

[0051] In this design: a notch 19 extending along the length of the sleeve 15 is made at one end of the sleeve 15 near the connecting rod 16, and an external thread 20 adapted to the locking nut 18 is cut. When the sleeve 15 and connecting rod 16 are locked, the locking nut 18 is threadedly connected to the sleeve 15. Unlocking and loosening the locking nut 18 allows the sleeve to slide along the length of the connecting rod 16. Tightening the locking nut 18 then fixes the relative position of the sleeve and connecting rod 16. During the sliding of the sleeve along the length of the connecting rod 16, the position of the collection box 4 moves, allowing the collection box 4 to be at different depths in the water as it moves along the length of the pool body 1, facilitating the installation and replacement of the collection box 4.

[0052] In this embodiment: the cross-section of the collection box 4 is a right trapezoid, and the inclined surface of the collection box 4 faces downward.

[0053] In this design, the cross-section of the collection box 4 is designed as a right-angled trapezoid, with the inclined surface of the collection box 4 facing downwards. This allows the scum entering the collection box 4 to be adsorbed onto the inclined surface of the collection box 4, enabling the collection box 4 to hold more scum.

[0054] In this embodiment: a baffle 21 is fixedly connected inside the collection box 4, and the baffle 21 is located at the bottom of the opening side of the collection box 4.

[0055] In this design: a baffle 21 is fixedly connected inside the collection box 4, and the baffle 21 is located at the bottom of the opening side of the collection box 4. This prevents the collected scum from falling back into the pool due to water flow or vibration.

[0056] In this embodiment, the upper edge of the baffle 21 is serrated.

[0057] In this design, the upper edge of the baffle 21 is serrated. This facilitates the removal of some algae, and the serrated edge increases the contact area between the baffle 21 and the scum, further improving the interception rate of suspended solids.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A biological treatment tank for sewage treatment, comprising a tank body (1), characterized in that: A bracket (2) is installed on the top of the pool body (1), an Oxford cloth (3) is installed on the bracket (2), a collection box (4) with an opening on one side is fixedly installed on the bottom surface of the Oxford cloth (3), and a moving component (5) for pulling the Oxford cloth (3) along the length direction of the pool body (1) is installed on the bracket (2). The moving component (5) includes a first rotating shaft (6) and a second rotating shaft (7) rotatably connected to both sides of the bracket (2). A pull rope (8) is wound around the first rotating shaft (6). One end of the pull rope (8) is fixedly connected to Oxford cloth (3). The Oxford cloth (3) is wound onto the second rotating shaft (7). A drive component (9) is installed on the bracket (2) to drive the first rotating shaft (6) and the second rotating shaft (7) to rotate in the same direction. The drive assembly (9) includes a transmission belt (10) tensioned on a first rotating shaft (6) and a second rotating shaft (7) and a motor (11) fixedly connected to a bracket (2), wherein the output shaft of the motor (11) is fixedly connected to the first rotating shaft (6); A sprocket (12) is fixedly connected to both the first shaft (6) and the second shaft (7). The transmission belt (10) is a chain, and the chain meshes with the two sprockets (12).

2. The biological treatment tank for sewage treatment according to claim 1, characterized in that: A connecting plate (13) is fixedly connected to the side of the Oxford cloth (3) near the pull cord (8). A groove (14) adapted to the connecting plate (13) is provided on the bracket (2). The connecting plate (13) is slidably connected in the groove (14).

3. The biological treatment tank for sewage treatment according to claim 2, characterized in that: The collection box (4) is located below the connecting plate (13). A sleeve (15) is fixedly connected to the top of the collection box (4). A connecting rod (16) is fixedly connected to the bottom of the connecting plate (13). The connecting rod (16) is slidably connected inside the sleeve (15). A locking assembly (17) is installed between the sleeve (15) and the connecting rod (16).

4. The biological treatment tank for sewage treatment according to claim 3, characterized in that: The locking assembly (17) includes a locking nut (18). The sleeve (15) has a notch (19) extending along the length of the sleeve (15) at one end near the connecting rod (16) and is cut with an external thread (20) that matches the locking nut (18). When the sleeve (15) and the connecting rod (16) are locked, the locking nut (18) is threaded onto the sleeve (15).

5. The biological treatment tank for sewage treatment according to claim 1, characterized in that: The cross-section of the collection box (4) is a right trapezoid, and the inclined surface of the collection box (4) faces downward.

6. The biological treatment tank for sewage treatment according to claim 1, characterized in that: A baffle (21) is fixedly connected inside the collection box (4), and the baffle (21) is located at the bottom of the opening side of the collection box (4).

7. The biological treatment tank for sewage treatment according to claim 6, characterized in that: The upper edge of the baffle (21) is serrated.

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