A sewage treatment filtering device

Abstract

This utility model relates to the field of wastewater treatment technology, specifically a wastewater treatment filtration device, including a treatment shell, a matching cover rotatably connected to the upper end of the treatment shell, a base fixedly connected to the bottom of the treatment shell, a wastewater treatment tank fixedly connected inside the treatment shell, a feeding port at the upper end of the wastewater treatment tank, a discharge port at the bottom of the wastewater treatment tank, a filter screen for filtration fixedly connected inside the discharge port, and a discharge valve installed inside the discharge port. This effectively promotes the rapid agglomeration of micron- or even nano-sized micro-impurities into larger flocs. Compared with traditional filtration devices, its unique flocculation-filtration synergistic mechanism significantly improves the removal effect on impurities that are difficult to intercept, such as colloids and dissolved organic matter, and prevents microparticles from penetrating the filter screen. By optimizing the flocculation process, it not only greatly enhances the filter screen's ability to intercept fine pollutants, but also reduces the frequency of filter screen clogging.

Description

Technical Field

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

[0002] In the wastewater treatment process, filtration is a key step in ensuring the quality of effluent, directly affecting the treatment effect and the stability of system operation. Traditional filtration devices mostly rely on a single filter screen or filter media for physical interception, which has limited effectiveness in removing tiny impurities (such as suspended solids and colloidal particles with a particle size of less than 50μm), easily causing filter screen clogging, resulting in decreased filtration efficiency, increased backwashing frequency, and even equipment failure in severe cases. In addition, existing technologies often separate flocculation from the filtration process. Flocculated flocs are prone to breakage during the transportation to the filtration unit, weakening the flocculation effect and allowing tiny flocs to penetrate the filter screen, making it difficult to achieve deep water purification.

[0003] Current filtration devices on the market, even those equipped with flocculant dosing systems, generally suffer from the problem of inaccurate dosage control. The crude, quantitative dosing method cannot adapt to fluctuations in raw water quality, often resulting in insufficient dosing leading to inadequate flocculation, or excessive dosing causing chemical residues and a surge in sludge, further increasing the load on the filtration unit and affecting overall treatment efficiency. Furthermore, traditional filtration equipment has low integration and complex operation, failing to meet the urgent demands of modern wastewater treatment for high efficiency, energy saving, and intelligence. Therefore, it is necessary to develop a new type of device that can achieve precise quantitative dosing of flocculants and deeply integrate flocculation with the filtration process. This would enhance the aggregation and retention of minute impurities, improve filtration efficiency, reduce operating costs, and drive the innovation and upgrading of wastewater treatment technology.

[0004] A search revealed that prior art publication number CN106492533A discloses a wastewater treatment filtration device, belonging to the field of wastewater treatment equipment technology. The device includes a housing and a drive unit. The housing contains at least one filter cartridge with a hollow structure and filter holes on its wall. A first filter layer and a second filter layer are sequentially arranged on the wall from the outside in. The housing contains at least one brush that contacts the second filter layer, and the brush is positioned along the height of the filter cartridge. A drive wheel is connected to the top of the filter cartridge via a connecting shaft, and a water outlet pipe penetrating the bottom wall of the housing is provided at the bottom. The drive wheel is connected to the drive unit. This invention helps improve wastewater purification effect and speed, saves power resources, has a large water output, and possesses self-cleaning capabilities.

[0005] Therefore, based on the above search and combined with existing methods, the above solutions only clean the filter screen with a brush, which is limited in that they cannot intercept smaller impurities when filtering. Therefore, we propose a sewage treatment filtration device. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a wastewater treatment filtration device, which solves the problems mentioned below.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A wastewater treatment filtration device includes a treatment shell, a matching cover rotatably connected to the upper end of the treatment shell, a base fixedly connected to the bottom of the treatment shell, a wastewater treatment tank fixedly connected inside the treatment shell, a feeding port at the upper end of the wastewater treatment tank, a discharge port at the bottom of the wastewater treatment tank, a filter screen for filtration fixedly connected inside the discharge port, a discharge valve installed inside the discharge port, a stirring mechanism for stirring wastewater fixedly installed inside the wastewater treatment tank, and a feeding mechanism for feeding wastewater into the wastewater treatment tank fixedly installed at the upper end of the wastewater treatment tank.

[0009] As a further aspect of this solution, the stirring mechanism includes a drive shaft, with multiple stirring rods fixedly connected to the outer wall of the drive shaft, a first drive wheel fixedly connected to the upper end of the drive shaft, and a servo motor fixedly installed at the upper end of the sewage treatment tank.

[0010] As a further aspect of this solution, the output end of the servo motor is fixedly connected to a second transmission wheel, and a transmission belt is tensioned and sleeved between the second transmission wheel and the first transmission wheel.

[0011] As a further aspect of this solution, the feeding mechanism includes a connecting plate, a liquid storage box fixedly connected to the upper end of the connecting plate, a connecting box fixedly connected to the upper end of the liquid storage box, an organic flocculant solution filling the space between the connecting box and the liquid storage box, a first connecting pipe fixedly connected to the upper end of the liquid storage box, a first recovery wheel with a reset function rotatably connected to the upper end of the liquid storage box, a guide rod fixedly connected to the inside of the liquid storage box, a rubber belt wrapped around the outer wall of the first recovery wheel, multiple rectangular openings on the outer wall of the rubber belt, the outer wall of the rubber belt abutting against the outer wall of the guide rod, a second recovery wheel rotatably connected to the upper end of the connecting plate, and the free end of the rubber belt fixedly connected to the outer wall of the second recovery wheel.

[0012] As a further aspect of this solution, a third connecting pipe is fixedly connected to one end of the liquid storage box near the second recycling wheel. The outer wall of the rubber belt passes through the interior of the first and third connecting pipes, and the outer wall of the rubber belt abuts against the outer wall of the third connecting pipe. A second connecting pipe is fixedly connected to the bottom of the third connecting pipe, and the bottom of the second connecting pipe is connected to the upper end of the sewage treatment tank. A recycling reel is fixedly connected to the outer wall of the second recycling wheel, and a pull rope is wound around the outer wall of the recycling reel.

[0013] As a further aspect of this solution, the outer wall of the sewage treatment tank is fixedly connected to a connecting pipe, and a buoyancy block is slidably connected inside the connecting pipe. The buoyancy block is hollow inside, and its bottom is fixedly connected to the free end of a pull rope. The outer wall of the pull rope slidably passes through the connecting pipe and the inside of the sewage treatment tank.

[0014] Beneficial effects

[0015] This invention provides a wastewater treatment filtration device. Compared with the prior art, it has the following advantages:

[0016] Based on the wastewater level, the system automatically releases a precise dose of flocculant, effectively promoting the rapid aggregation of micron- or even nano-sized impurities into larger flocs. Compared to traditional filtration devices, its unique flocculation-filtration synergistic mechanism significantly improves the removal of colloids, dissolved organic matter, and other difficult-to-retain impurities, preventing tiny particles from penetrating the filter screen. By optimizing the flocculation process, it not only greatly enhances the filter screen's ability to intercept fine pollutants but also reduces the frequency of filter screen clogging, extends the filter screen's lifespan, and ensures a dual improvement in wastewater treatment efficiency and water purification effect. Attached Figure Description

[0017] Figure 1 This is a front view of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the main sewage treatment tank of this utility model;

[0019] Figure 3 This is a schematic diagram of the main feeding mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the liquid storage box of this utility model;

[0021] Figure 5 This is a schematic diagram of the main filter screen position structure of this utility model.

[0022] In the diagram: 1. Processing shell; 2. Discharge port; 3. Fitting cover; 4. Base; 5. Feeding port; 6. First drive wheel; 7. Second drive wheel; 8. Drive belt; 9. Servo motor; 10. Drive shaft; 11. Wastewater treatment tank; 12. Stirring rod; 13. Connecting pipe; 14. Pull rope; 15. Buoyancy block; 16. Connecting plate; 17. Liquid storage box; 18. First connecting pipe; 19. First recovery wheel; 20. Feeding port; 21. Connecting box; 22. Recovery reel; 23. Second recovery wheel; 24. Second connecting pipe; 25. Third connecting pipe; 26. Rectangular opening; 27. Rubber belt; 28. Guide rod; 29. ​​Filter screen; 101. Stirring mechanism; 201. Feeding mechanism. Detailed Implementation

[0023] 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.

[0024] Example 1: Please refer to Figures 1-2 , Figure 5 As shown, this utility model provides a technical solution: a sewage treatment filtration device, including a treatment shell 1, a mating cover 3 rotatably connected to the upper end of the treatment shell 1 via a rotating shaft, a base 4 fixedly connected to the bottom of the treatment shell 1 via bolts, a sewage treatment tank 11 fixedly connected inside the treatment shell 1, a feeding port 5 opened at the upper end of the sewage treatment tank 11, a discharge port 2 opened at the bottom of the sewage treatment tank 11, a filter screen 29 for filtration fixedly connected inside the discharge port 2, a discharge valve (not shown in the figure) installed inside the discharge port 2, a stirring mechanism 101 for stirring sewage fixedly installed inside the sewage treatment tank 11, and a feeding mechanism 201 for feeding sewage into the sewage treatment tank 11 fixedly installed at the upper end of the sewage treatment tank 11.

[0025] Example 2: Please refer to Figures 3-4 As shown, the stirring mechanism 101 includes a drive shaft 10. Multiple stirring rods 12 are fixedly connected to the outer wall of the drive shaft 10 by bolts. A first drive wheel 6 is fixedly connected to the upper end of the drive shaft 10. A servo motor 9 is fixedly installed at the upper end of the sewage treatment tank 11. A second drive wheel 7 is fixedly connected to the output end of the servo motor 9. Multiple openings are respectively opened on the outer walls of the second drive wheel 7 and the first drive wheel 6. The multiple openings are circumferentially distributed on the outer walls of the first drive wheel 6 and the second drive wheel 7. A drive belt 8 is tensioned and sleeved between the second drive wheel 7 and the first drive wheel 6. A tensioner is also fixedly installed at the upper end of the sewage treatment tank 11. The tensioner is not shown in the figure. The abutment wheel of the tensioner will abut against the outer wall of the drive belt 8. When the drive belt 8 becomes loose after long-term use, the abutment wheel of the tensioner can squeeze the outer wall of the drive belt 8 to increase the tension of the drive belt 8 and prevent the drive belt 8 from slipping during use.

[0026] The feeding mechanism 201 includes a connecting plate 16, with a liquid storage box 17 fixedly connected to the upper end of the connecting plate 16. A connecting box 21 is bolted to the upper end of the liquid storage box 17. An organic flocculant solution is filled between the connecting box 21 and the liquid storage box 17. The organic flocculant solution causes particle aggregation through the adsorption and bridging effect of polymer chains, resulting in strong flocculation. A first connecting pipe 18 is fixedly connected to the upper end of the liquid storage box 17. A liquid inlet 20 is opened at the upper end of the connecting box 21. The outer wall of the liquid inlet 20... The threaded connection has an installation cover. The upper end of the first connecting pipe 18 is higher than the liquid inlet 20. The upper end of the liquid storage box 17 is rotatably connected to the first recovery wheel 19 with a reset function via a rotating shaft. A reset torsion spring is snapped between the first recovery wheel 19 and the liquid storage box 17. A guide rod 28 is fixedly connected inside the liquid storage box 17. A rubber strip 27 is wrapped around the outer wall of the first recovery wheel 19. Multiple rectangular openings 26 are opened on the outer wall of the rubber strip 27. The outer wall of the rubber strip 27 abuts against the outer wall of the guide rod 28.

[0027] The upper end of the connecting plate 16 is also rotatably connected to the second recycling wheel 23 via a rotating shaft. The free end of the rubber belt 27 is fixedly connected to the outer wall of the second recycling wheel 23. The end of the liquid storage box 17 near the second recycling wheel 23 is fixedly connected to the third connecting pipe 25. The outer wall of the rubber belt 27 passes through the interior of the first connecting pipe 18 and the third connecting pipe 25. The outer wall of the rubber belt 27 abuts against the outer wall of the third connecting pipe 25. The rubber belt 27 is made of rubber, which has good corrosion resistance and high temperature resistance, and is durable. The bottom of the third connecting pipe 25 is fixedly connected to the second connecting pipe 24. The bottom of the second connecting pipe 24 is connected to the upper end of the sewage treatment tank 11. The outer wall of the second recycling wheel 23 is fixedly connected to the recycling reel 22. The outer wall of the recycling reel 22 is wound with a pull rope 14.

[0028] The outer wall of the sewage treatment tank 11 is fixedly connected to a connecting pipe 13. A buoyancy block 15 is slidably connected inside the connecting pipe 13. The buoyancy block 15 is hollow inside. There is a gap between the outer wall of the buoyancy block 15 and the inner wall of the connecting pipe 13. The bottom of the buoyancy block 15 is fixedly connected to the free end of the pull rope 14. The outer wall of the pull rope 14 is slidably inserted through the connecting pipe 13 and the inside of the sewage treatment tank 11.

[0029] Working principle: During use, simply open the fitting cover 3 and inject wastewater into the wastewater treatment tank 11 through the feeding port 5. At this time, the servo motor 9 is activated, driving the second transmission wheel 7 to rotate. The second transmission wheel 7, through the transmission belt 8, drives the first transmission wheel 6 to rotate. The first transmission wheel 6 drives the transmission shaft 10 and all the stirring rods 12 to rotate, thus stirring the wastewater inside the wastewater treatment tank 11. Note that when wastewater is injected into the wastewater treatment tank 11, it also enters the connecting pipe 13. As the internal sewage rises, it will cause the buoyancy block 15 to rise and float. Note that the buoyancy of the buoyancy block 15 must be greater than the spring force coefficient of the reset torsion spring between the first recovery wheel 19 and the liquid storage box 17. The pull rope 14 drives the recovery reel 22 and the second recovery wheel 23 to rotate. The second recovery wheel 23 will pull the rubber belt 27. The rectangular opening 26 will pass through the inside of the third connecting pipe 25. The flocculant solution inside the rectangular opening 26 will fall into the sewage treatment tank 11 through the second connecting pipe 24. The amount of material added can be quantitatively determined according to the rise of the buoyancy block 15 to avoid waste.

[0030] After the sewage treatment is completed, it is discharged through the discharge port 2. The filter screen 29 inside the discharge port 2 will filter the sewage. Since the flocculant has pre-flocculated and agglomerated the sewage, even smaller impurities will agglomerate, making the filter screen 29 have a better filtration effect. The sewage inside the sewage treatment tank 11 and the connecting pipe 13 will also be discharged. The buoyancy block 15 descends and releases the pull rope 14. The first recovery wheel 19 resets and rotates, pulling and recovering the rubber belt 27. The rubber belt 27 is in a vertical state inside the first connecting pipe 18. The flocculant solution inside the rectangular opening 26 falls into the storage box 17. After recovery, it can be used again.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment filtration device, comprising a treatment housing (1), characterized in that: The upper end of the treatment shell (1) is rotatably connected to a mating cover (3), and the bottom of the treatment shell (1) is also fixedly connected to a base (4). A sewage treatment tank (11) is fixedly connected inside the treatment shell (1). A feeding port (5) is opened at the upper end of the sewage treatment tank (11), and a discharge port (2) is opened at the bottom of the sewage treatment tank (11). A filter screen (29) for filtration is fixedly connected inside the discharge port (2). A discharge valve is installed inside the discharge port (2), and a stirrer for stirring sewage is fixedly installed inside the sewage treatment tank (11). The mechanism (101) has a feeding mechanism (201) fixedly installed at the upper end of the sewage treatment tank (11) for feeding sewage into the tank. The feeding mechanism (201) includes a connecting plate (16), a storage box (17) is fixedly connected to the upper end of the connecting plate (16), and a connecting box (21) is fixedly connected to the upper end of the storage box (17). An organic flocculant solution is filled between the connecting box (21) and the storage box (17). A first connecting pipe (18) is fixedly connected to the upper end of the storage box (17). A first recovery wheel (19) with a reset function is rotatably connected. A guide rod (28) is fixedly connected inside the liquid storage box (17). A rubber strip (27) is wrapped around the outer wall of the first recovery wheel (19). The outer wall of the rubber strip (27) has multiple rectangular openings (26). The outer wall of the rubber strip (27) abuts against the outer wall of the guide rod (28). A second recovery wheel (23) is also rotatably connected to the upper end of the connecting plate (16). The free end of the rubber strip (27) is fixedly connected to the outer wall of the second recovery wheel (23). The liquid storage box (17) is close to the second recovery wheel. One end of the collecting wheel (23) is fixedly connected to a third connecting pipe (25). The outer wall of the rubber belt (27) passes through the interior of the first connecting pipe (18) and the third connecting pipe (25). The outer wall of the rubber belt (27) abuts against the outer wall of the third connecting pipe (25). The bottom of the third connecting pipe (25) is fixedly connected to a second connecting pipe (24). The bottom of the second connecting pipe (24) is connected to the upper end of the sewage treatment tank (11). The outer wall of the second collecting wheel (23) is fixedly connected to a collecting reel (22). The outer wall of the collecting reel (22) is wound with a pull rope (14).

2. The wastewater treatment filtration device according to claim 1, characterized in that: The stirring mechanism (101) includes a drive shaft (10), and multiple stirring rods (12) are fixedly connected to the outer wall of the drive shaft (10). A first drive wheel (6) is fixedly connected to the upper end of the drive shaft (10), and a servo motor (9) is fixedly installed on the upper end of the sewage treatment tank (11).

3. The wastewater treatment filtration device according to claim 2, characterized in that: The output end of the servo motor (9) is fixedly connected to a second transmission wheel (7), and a transmission belt (8) is tensioned between the second transmission wheel (7) and the first transmission wheel (6).

4. The wastewater treatment filtration device according to claim 1, characterized in that: The outer wall of the sewage treatment tank (11) is fixedly connected to a connecting pipe (13), and a buoyancy block (15) is slidably connected inside the connecting pipe (13). The buoyancy block (15) is hollow inside, and the bottom of the buoyancy block (15) is fixedly connected to the free end of the pull rope (14). The outer wall of the pull rope (14) is slidably inserted through the connecting pipe (13) and the inside of the sewage treatment tank (11).

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