An apparatus for anaerobic treatment of wastewater
By introducing a V-shaped filter screen and scraper mechanism into the anaerobic wastewater treatment device, combined with servo motor drive and buoyancy control, the problem of large particulate matter affecting treatment was solved, achieving efficient wastewater purification and stable anaerobic treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUE HAI ENVIRONMENTAL PROTECTION TECH CONSULTS SERVICE CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-26
AI Technical Summary
Existing anaerobic wastewater treatment devices cannot effectively filter large particulate matter before treatment, affecting treatment effect and efficiency.
A filtration mechanism including a V-shaped filter screen and a scraper was designed. The screw rod driven by a servo motor works in conjunction with the scraper to achieve automatic cleaning of debris. The wastewater treatment volume and dispersion flow are controlled by a buoyancy mechanism to ensure that the V-shaped filter screen fully contacts the wastewater.
It effectively filters impurities in wastewater, ensuring that anaerobic treatment proceeds normally in a pure environment, improving overall quality and efficiency, and enhancing pretreatment effect and system stability.
Smart Images

Figure CN224411547U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anaerobic wastewater treatment technology, and in particular to an anaerobic wastewater treatment device. Background Technology
[0002] Anaerobic wastewater treatment is a biochemical technology that combines wastewater treatment with energy recovery and utilization. It is a highly efficient and low-consumption wastewater treatment technology.
[0003] Anaerobic biological treatment utilizes the life metabolism of anaerobic microorganisms to convert organic pollutants in wastewater into substances such as water, methane, carbon dioxide, and new cells without the need for oxygen supply. Among these substances, methane is a recyclable energy source.
[0004] Existing anaerobic wastewater treatment devices mainly include an anaerobic chamber, an inlet, and a drain pipe. During use, wastewater is introduced through the inlet and then undergoes anaerobic treatment through the anaerobic bacteria layer inside the anaerobic chamber. The treated wastewater is then pumped out through the drain pipe and a water pump. However, in actual use, the wastewater may contain large particles of debris that cannot be filtered before anaerobic treatment, which will affect the anaerobic treatment effect and reduce the overall quality and efficiency of anaerobic wastewater treatment.
[0005] Therefore, an anaerobic wastewater treatment device is proposed to address the above problems. Utility Model Content
[0006] To address the shortcomings of existing technologies, such as the inability to filter large particles of debris in wastewater before anaerobic treatment, which affects the anaerobic treatment effect and reduces the overall quality and efficiency of wastewater anaerobic treatment, an anaerobic wastewater treatment device is proposed.
[0007] The technical solution adopted by this utility model to solve its technical problem is: an anaerobic wastewater treatment device, including an anaerobic chamber, an inlet hole at the top of the anaerobic chamber, a drain pipe fixedly connected to the inner surface of the anaerobic chamber, a filtration mechanism and a buoyancy mechanism provided on the inner surface of the anaerobic chamber, the filtration mechanism including a V-shaped filter screen fixedly connected to the inner surface of the anaerobic chamber, a triangular plate fixedly connected to the inner surface of the V-shaped filter screen, a threaded rod rotatably connected to the inner surface of the anaerobic chamber, a servo motor fixedly connected to one side of the anaerobic chamber at one end of the threaded rod, a scraper threadedly connected to the outer surface of the threaded rod, a rectangular frame fixedly connected to the other side of the anaerobic chamber, a return spring fixedly connected to the inner surface of the rectangular frame, a baffle plate fixedly connected to one end of two return springs, and a push rod fixedly connected to one side of the scraper.
[0008] Preferably, the inner cavities of the two return springs are provided with telescopic rods, and the two ends of the two telescopic rods are respectively fixedly connected to one side of the blocking plate and the inner surface of the rectangular frame.
[0009] Preferably, the inner surface of the anaerobic chamber is fixedly connected to an inclined panel, which is slidably connected to the scraper.
[0010] Preferably, the top of the scraper is fixedly connected to two connecting frames, the bottom of each of the two connecting frames is fixedly connected to a spring telescopic rod, and the bottom of each of the two spring telescopic rods is fixedly connected to an impact ball.
[0011] Preferably, the top of the V-shaped filter screen has a plurality of impact grooves, and the inner surface diameter of the plurality of impact grooves is larger than the outer surface diameter of the impact ball.
[0012] Preferably, a stirring plate is rotatably connected to the inner surface of the anaerobic chamber, and a pulley assembly is fixedly connected to the outer surface of the stirring plate and the outer surface of the threaded rod.
[0013] Preferably, the buoyancy mechanism includes a perforated plate fixedly connected to the inner surface of the anaerobic chamber, four connecting pipes fixedly connected to the inner surface of the perforated plate, four concave blocks fixedly connected to the top of the perforated plate, a sealing block rotatably connected to the inner surface of each of the four concave blocks, a pull rope fixedly connected to the top of each of the four sealing blocks, and a buoyancy ball fixedly connected to one end of each of the four pull ropes.
[0014] Preferably, each of the four sealing blocks has a rubber ring fixedly connected to its bottom end, and the outer surface of the four rubber rings is larger than the inner surface of the connecting pipe.
[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0016] 1. This utility model provides a wastewater anaerobic treatment device. Through the filtration mechanism, with the cooperation of V-shaped filter screen and scraper, it can effectively filter impurities in wastewater and facilitate cleaning, avoiding the impact of impurities on the anaerobic treatment effect. It ensures that the anaerobic treatment is carried out normally and efficiently in a relatively pure wastewater environment, thereby improving the overall quality and efficiency of wastewater anaerobic treatment and better achieving the wastewater purification goal.
[0017] 2. This utility model provides a wastewater anaerobic treatment device. Through the buoyancy mechanism, the wastewater treatment volume can be controlled and the flow position of the wastewater can be dispersed under the combined action of the buoyancy ball and the sealing block. This allows the V-shaped filter screen to fully contact the wastewater, improves the filtration efficiency, ensures the pretreatment effect of the wastewater before anaerobic treatment, and thus improves the treatment effect and operational stability of the entire wastewater anaerobic treatment system. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the filter mechanism structure of this utility model;
[0021] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A;
[0022] Figure 5 This is a schematic diagram of the rectangular frame cross-sectional structure of this utility model;
[0023] Figure 6 This is a schematic diagram of the explosion effect of the buoyancy mechanism of this utility model.
[0024] In the diagram: 1. Anaerobic chamber; 2. Water inlet; 3. Drain pipe; 5. Filtration mechanism; 51. V-shaped filter screen; 52. Triangular plate; 53. Threaded rod; 54. Servo motor; 55. Scraper; 56. Rectangular frame; 57. Return spring; 58. Baffle plate; 59. Telescopic rod; 510. Sloping panel; 511. Connecting frame; 512. Spring telescopic rod; 513. Impact groove; 514. Impact ball; 515. Stirring plate; 516. Pulley assembly; 517. Push rod; 6. Buoyancy mechanism; 61. Perforated plate; 62. Connecting pipe; 63. Concave block; 64. Sealing block; 65. Pull rope; 66. Buoyancy ball; 67. Rubber ring. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Specific implementation examples are given below.
[0027] Please see Figure 1 - Figure 6An anaerobic wastewater treatment device includes an anaerobic chamber 1 with an inlet 2 at its top. A drain pipe 3 is fixedly connected to the inner surface of the anaerobic chamber 1. A filtration mechanism 5 and a buoyancy mechanism 6 are provided on the inner surface of the anaerobic chamber 1. The filtration mechanism 5 includes a V-shaped filter screen 51 fixedly connected to the inner surface of the anaerobic chamber 1, a triangular plate 52 fixedly connected to the inner surface of the V-shaped filter screen 51, a threaded rod 53 rotatably connected to the inner surface of the anaerobic chamber 1, a servo motor 54 fixedly connected to one end of the threaded rod 53 and fixedly connected to one side of the anaerobic chamber 1, and a scraper 55 threadedly connected to the outer surface of the threaded rod 53. The other side of the anaerobic chamber 1 is fixedly connected to... A rectangular frame 56 has a return spring 57 fixedly connected to its inner surface. One end of each of the two return springs 57 is fixedly connected to a baffle plate 58. A push rod 517 is fixedly connected to one side of a scraper 55. Telescopic rods 59 are provided inside the cavities of both return springs 57. The two ends of the telescopic rods 59 are fixedly connected to one side of the baffle plate 58 and the inner surface of the rectangular frame 56, respectively. A sloping panel 510 is fixedly connected to the inner surface of the anaerobic chamber 1. The sloping panel 510 is slidably connected to the scraper 55. During use, wastewater is introduced into the inner cavity of the anaerobic chamber 1 through the inlet hole 2. The wastewater will fall directly onto the V-shaped filter screen 51 under gravity. On the side, because the round holes on the V-shaped filter screen 51 are distributed on both sides, the impurities in the wastewater will be retained in the upper middle part of the V-shaped filter screen 51. The wastewater will fall through the round holes on both sides of the V-shaped filter screen 51 and flow into the bottom of the inner cavity of the anaerobic chamber 1, where the wastewater undergoes anaerobic treatment. When it is necessary to clean the impurities retained on the upper side of the V-shaped filter screen 51, the output end of the servo motor 54 is started to drive the threaded rod 53 to rotate through the coupling. Since the threaded rod 53 is threadedly connected to the scraper 55, the scraper 55 slides on the inner surface of the inclined plate 510, and at the same time, the scraper 55 scrapes the impurities on the V-shaped filter screen 51. When the push rod 517 on the V-shaped filter screen 51 contacts the baffle plate 58, the push rod 517 will push the baffle plate 58 to move, causing the return spring 57 and the telescopic rod 59 to be in a compressed state. At this time, the rectangular frame 56 is opened and falls into the collection frame. The anaerobic wastewater will be connected to the external extraction equipment through the drain pipe 3, thereby extracting the treated wastewater. This effectively filters impurities in the wastewater and facilitates cleaning, preventing impurities from affecting the anaerobic treatment effect. It ensures that the anaerobic treatment is carried out normally and efficiently in a relatively pure wastewater environment, thereby improving the overall quality and efficiency of anaerobic wastewater treatment and better achieving the wastewater purification goal.
[0028] In the anaerobic chamber 1 mentioned above, an anaerobic bacterial layer is provided at the bottom of the chamber in this scheme, and the wastewater is treated anaerobically using the anaerobic bacterial layer.
[0029] The servo motor 54 mentioned above is a mature drive technology and device in the existing technology. Its internal structure, principle and connection method will not be described in this solution.
[0030] like Figure 3 and Figure 4 As shown, two connecting frames 511 are fixedly connected to the top of the scraper 55. A spring telescopic rod 512 is fixedly connected to the bottom of each of the two connecting frames 511. An impact ball 514 is fixedly connected to the bottom of each of the two spring telescopic rods 512. Several impact grooves 513 are formed at the top of the V-shaped filter screen 51. The inner diameter of the impact grooves 513 is larger than the outer diameter of the impact ball 514. During the movement of the scraper 55, the connecting frames 511 move, causing the impact ball 514 to intermittently impact the impact grooves 513 under the action of the spring telescopic rods 512. This causes the V-shaped filter screen 51 to vibrate, helping the wastewater to filter more smoothly on the V-shaped filter screen 51, effectively preventing clogging, and promoting the separation of particulate matter from liquid in the wastewater. This ensures the efficient operation of the V-shaped filter screen 51, thereby ensuring faster and better treatment of wastewater during anaerobic treatment and improving the overall efficiency and quality of wastewater treatment.
[0031] like Figure 3 As shown, a stirring plate 515 is rotatably connected to the inner surface of the anaerobic chamber 1. A pulley set 516 is fixedly connected to the outer surface of the stirring plate 515 and the outer surface of the threaded rod 53. During the rotation of the threaded rod 53, the stirring plate 515 is driven to rotate through the pulley set 516, so that the stirring plate 515 can stir the wastewater. By stirring, the wastewater is evenly mixed, which promotes the full contact between pollutants in the wastewater and anaerobic bacteria, thereby improving the anaerobic treatment efficiency, accelerating the decomposition of pollutants, reducing the treatment time, and improving the wastewater treatment effect.
[0032] like Figure 6As shown, the buoyancy mechanism 6 includes a perforated plate 61 fixedly connected to the inner surface of the anaerobic chamber 1. Four connecting pipes 62 are fixedly connected to the inner surface of the perforated plate 61. Four concave blocks 63 are fixedly connected to the top of the perforated plate 61. A sealing block 64 is rotatably connected to the inner surface of each of the four concave blocks 63. A pull rope 65 is fixedly connected to the top of each of the four sealing blocks 64. One end of each of the four pull ropes 65 is fixedly connected to a buoyancy ball 66. A rubber ring 67 is fixedly connected to the bottom of each of the four sealing blocks 64. The outer surface of the four rubber rings 67 is larger than the inner surface of the connecting pipes 62. After wastewater enters the inner cavity of the anaerobic chamber 1 through the inlet hole 2, it will stagnate in the perforated plate 61. In the space formed by the perforated plate 61 and the anaerobic chamber 1, as the wastewater level increases, the buoyancy ball 66 moves upward, the pull rope 65 gradually tightens, and pulls the four sealing blocks 64 to rotate on the inner surface of the concave block 63, causing the rubber ring 67 to move away from the top of the drain pipe 3, thus opening the drain pipe 3. At this time, the wastewater will fall through the drain pipe 3, which can control the amount of wastewater treated and disperse the flow position of the wastewater, so that the V-shaped filter screen 51 can fully contact the wastewater, improve the filtration efficiency, ensure the pretreatment effect of the wastewater before anaerobic treatment, and thus improve the treatment effect and operational stability of the entire wastewater anaerobic treatment system.
[0033] The working principle of this utility model is as follows: Wastewater is introduced into the inner cavity of the anaerobic chamber 1 through the inlet hole 2. After entering the anaerobic chamber 1, the wastewater remains in the space formed by the perforated plate 61 and the anaerobic chamber 1. As the wastewater level increases, the buoyancy ball 66 moves upward, the pull rope 65 gradually tightens, and pulls the four sealing blocks 64 to rotate on the inner surface of the concave block 63. This causes the rubber ring 67 to move away from the top of the drain pipe 3, thus opening the drain pipe 3. Wastewater will fall through drain pipe 3, and under gravity, it will fall directly onto the upper side of V-shaped filter screen 51. Since the round holes on the V-shaped filter screen 51 are distributed on both sides, impurities in the wastewater will be retained in the upper middle part of the V-shaped filter screen 51. The wastewater will then fall through the round holes on both sides of the V-shaped filter screen 51 and flow into the bottom of the inner cavity of the anaerobic chamber 1, where it undergoes anaerobic treatment. When it is necessary to clean the impurities retained on the upper side of the V-shaped filter screen 51, the output of the servo motor 54 is activated. The coupling drives the threaded rod 53 to rotate. Since the threaded rod 53 is threadedly connected to the scraper 55, the scraper 55 slides on the inner surface of the inclined plate 510. At the same time, the scraper 55 scrapes the debris on the V-shaped filter screen 51. When the push rod 517 on the V-shaped filter screen 51 contacts the baffle plate 58, the push rod 517 pushes the baffle plate 58 to move, causing the return spring 57 and the telescopic rod 59 to be in a compressed state. At this time, the rectangular frame 56 is opened and falls into the collection frame, and the anaerobic wastewater will drain through the drainage. Pipe 3 is connected to an external extraction device to extract the treated wastewater. During the movement of scraper 55, the connecting frame 511 will move, so that the impact ball 514 can intermittently impact the impact groove 513 under the action of spring telescopic rod 512, so that the V-shaped filter screen 51 can vibrate. The vibration helps the wastewater to be filtered more smoothly on the V-shaped filter screen 51, effectively preventing the V-shaped filter screen 51 from clogging, while promoting the separation of particulate matter and liquid in the wastewater, and keeping the V-shaped filter screen 51 working efficiently.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A wastewater anaerobic treatment device, comprising an anaerobic chamber (1), characterized in that: The anaerobic chamber (1) has a water inlet hole (2) at its top. A drain pipe (3) is fixedly connected to the inner surface of the anaerobic chamber (1). A filtration mechanism (5) and a buoyancy mechanism (6) are provided on the inner surface of the anaerobic chamber (1). The filtration mechanism (5) includes a V-shaped filter screen (51) fixedly connected to the inner surface of the anaerobic chamber (1). A triangular plate (52) is fixedly connected to the inner surface of the V-shaped filter screen (51). A threaded rod (53) is rotatably connected to the inner surface of the anaerobic chamber (1). One end of the threaded rod (53) is fixedly connected to a servo motor (54) which is fixedly connected to one side of the anaerobic chamber (1). A scraper (55) is threadedly connected to the outer surface of the threaded rod (53). A rectangular frame (56) is fixedly connected to the other side of the anaerobic chamber (1). A return spring (57) is fixedly connected to the inner surface of the rectangular frame (56). A baffle plate (58) is fixedly connected to one end of the two return springs (57). A push rod (517) is fixedly connected to one side of the scraper (55).
2. The anaerobic wastewater treatment device according to claim 1, characterized in that: The inner cavities of the two reset springs (57) are provided with telescopic rods (59), and the two ends of the two telescopic rods (59) are fixedly connected to one side of the blocking plate (58) and the inner surface of the rectangular frame (56), respectively.
3. The anaerobic wastewater treatment device according to claim 1, characterized in that: An inclined panel (510) is fixedly connected to the inner surface of the anaerobic chamber (1), and the inclined panel (510) is slidably connected to the scraper (55).
4. The anaerobic wastewater treatment device according to claim 1, characterized in that: The top of the scraper (55) is fixedly connected to two connecting brackets (511), and the bottom of each of the two connecting brackets (511) is fixedly connected to a spring telescopic rod (512), and the bottom of each of the two spring telescopic rods (512) is fixedly connected to an impact ball (514).
5. The anaerobic wastewater treatment device according to claim 1, characterized in that: The top of the V-shaped filter (51) is provided with a plurality of impact grooves (513), and the inner surface diameter of the plurality of impact grooves (513) is larger than the outer surface diameter of the impact ball (514).
6. The anaerobic wastewater treatment device according to claim 1, characterized in that: The inner surface of the anaerobic chamber (1) is rotatably connected to a stirring plate (515), and the outer surface of the stirring plate (515) and the outer surface of the threaded rod (53) are fixedly connected to a pulley assembly (516).
7. The anaerobic wastewater treatment device according to claim 1, characterized in that: The buoyancy mechanism (6) includes a perforated plate (61) fixedly connected to the inner surface of the anaerobic chamber (1). Four connecting pipes (62) are fixedly connected to the inner surface of the perforated plate (61). Four concave blocks (63) are fixedly connected to the top of the perforated plate (61). A sealing block (64) is rotatably connected to the inner surface of each of the four concave blocks (63). A pull rope (65) is fixedly connected to the top of each of the four sealing blocks (64). A buoyancy ball (66) is fixedly connected to one end of each of the four pull ropes (65).
8. The anaerobic wastewater treatment device according to claim 7, characterized in that: Each of the four sealing blocks (64) has a rubber ring (67) fixedly connected to its bottom end. The outer surface of the four rubber rings (67) is larger than the inner surface of the connecting pipe (62).