A high-efficiency coagulation device for treating initial rainwater

Abstract

The utility model provides a kind of high-efficiency coagulating device for handling initial rainwater, including collection tank, the bottom of collection tank is fixedly connected with support structure, and water inlet and water outlet are respectively arranged above and below collection tank, and the inside of collection tank is separated into upper chamber and lower chamber by partition in the inside of collection tank. First filter plate and first self-cleaning mechanism are fixedly installed in water inlet, second filter plate, second self-cleaning mechanism and stirring mechanism are arranged in upper chamber, and stirring mechanism is fixedly installed on the top of collection tank, and is connected with second self-cleaning mechanism. The device can carry out multistage filtration and treatment to rainwater, not only remove the impurities in rainwater, but also neutralize the weak acidity of rainwater, and self-cleaning mechanism is arranged in the device, effectively prevent the device from being blocked, improve the processing efficiency and quality of initial rainwater.

Description

Technical Field

[0001] This utility model relates to the field of rainwater treatment technology, specifically to a high-efficiency coagulation device for treating initial rainwater. Background Technology

[0002] Initial rainwater treatment is a crucial aspect of urban water resource management, significantly contributing to improved water quality and increased water resource utilization. Initial rainwater typically contains large amounts of sediment, suspended particles, and various pollutants. Direct discharge without treatment not only pollutes urban water bodies but also exacerbates the risk of urban flooding. Rainwater coagulation technology, as a highly efficient treatment method, involves adding coagulants to coagulate tiny rainwater particles into larger flocs. These flocs further grow in a flocculation tank, facilitating subsequent sedimentation, filtration, and separation. The treated rainwater can then be used for various purposes, such as urban greening irrigation and road washing, significantly improving water resource utilization and reducing pressure on urban drainage systems.

[0003] Current rainwater treatment often relies on coagulation devices; however, these devices still have some shortcomings. Firstly, the initial rainwater contains a large amount of impurities, making the filtration system of the coagulation device prone to clogging. If not cleaned promptly, this can severely impact the rainwater filtration efficiency. Secondly, the initial rainwater is weakly acidic due to the dissolved sulfur dioxide, nitrogen oxides, and other acidic gases from the atmosphere, which not only affects water quality and subsequent utilization but also corrodes the downstream pipe network system. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, a high-efficiency coagulation device for treating initial rainwater is provided. This device performs multi-stage filtration and treatment on the initial rainwater, removing impurities and neutralizing its weak acidity. It is also equipped with a self-cleaning mechanism to effectively prevent clogging and improve the treatment efficiency and quality of initial rainwater.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A high-efficiency coagulation device for treating initial rainwater includes a collection box with a support structure fixedly connected to its bottom. The collection box has an inlet and an outlet at its top and bottom, respectively. An internal partition divides the collection box into an upper chamber and a lower chamber. The collection box has a first feed inlet and a second feed inlet, with the first feed inlet communicating with the upper chamber and the second feed inlet communicating with the lower chamber.

[0007] A first filter plate and a first self-cleaning mechanism are fixedly installed inside the water inlet. The first filter plate is detachably installed at the bottom of the water inlet, and the first self-cleaning mechanism is located above the first filter plate for cleaning impurities on the surface of the first filter plate.

[0008] The upper chamber is provided with a second filter plate, a second self-cleaning mechanism and a stirring mechanism. The second filter plate is detachably installed on the partition. The second self-cleaning mechanism is located above the second filter plate and is fixed on the inner side wall of the upper chamber. The stirring mechanism is fixedly installed on the top of the collection box and connected to the second self-cleaning mechanism.

[0009] According to the above technical solution, the support structure includes several evenly arranged legs, and a shock-absorbing base is fixedly installed at the bottom of each leg.

[0010] According to the above technical solution, the first self-cleaning mechanism includes a fan blade, a transmission rod, an auger roller, and a scraper. One end of the transmission rod is fixedly connected to the fan blade, and the other end is fixedly provided with a first bevel gear. The top end of the auger roller is rotatably installed on the top of the inner wall of the water inlet. A second bevel gear is fixedly sleeved on the outside of the auger roller, and the second bevel gear meshes perpendicularly with the first bevel gear. The scraper is fixed to the bottom of the auger roller and is close to the upper surface of the first filter plate.

[0011] According to the above technical solution, the stirring mechanism includes a motor, a rotating rod, and stirring blades. The motor is fixed above the collection box. The upper end of the rotating rod passes through the collection box and is connected to the motor. Several stirring blades are fixed outside the rotating rod. A third bevel gear is fixed at the bottom of the rotating rod.

[0012] According to the above technical solution, the second self-cleaning mechanism includes a protective box, a reciprocating screw, a moving block, and a cleaning brush. The protective box is fixed on the side wall of the upper chamber. The reciprocating screw is located inside the protective box, with one end rotatably mounted on the side wall of the upper chamber and the other end fixedly provided with a fourth bevel gear, which meshes perpendicularly with a third bevel gear. The moving block is movably mounted on the reciprocating screw. The cleaning brush is fixed at the bottom of the moving block, with the bristles of the cleaning brush close to the upper surface of the second filter plate.

[0013] According to the above technical solution, the reciprocating lead screw is provided with an external thread, and the moving block is provided with an internal thread that matches it. The moving block and the reciprocating lead screw are connected by a threaded connection.

[0014] According to the above technical solution, the top surface of the inner wall of the protective box is provided with a sliding groove, and the top of the moving block is embedded in the sliding groove, so that the moving block can slide in the sliding groove.

[0015] According to the above technical solution, the bottom of the water inlet is a slope.

[0016] According to the above technical solution, a germicidal lamp is fixedly installed on the top surface of the inner wall of the lower cavity.

[0017] According to the above technical solution, the collection box is provided with an openable and closable sliding door at the positions of the first filter plate and the second filter plate.

[0018] This utility model has the following beneficial effects:

[0019] 1. The coagulation device first treats the initial rainwater through the first filter plate. After the rainwater enters the upper chamber, coagulant is added through the first feed inlet. The stirring mechanism enhances the mixing effect of rainwater and coagulant. Then, the rainwater is further filtered to remove impurities through the second filter plate. After the rainwater enters the lower chamber, a weakly alkaline product is added through the second feed inlet to neutralize the weak acidity of the rainwater. The coagulation device cleans the first and second filter plates through the first and second self-cleaning mechanisms, respectively, to prevent clogging and improve the efficiency and quality of initial rainwater treatment.

[0020] 2. The first self-cleaning mechanism in the coagulation device can operate automatically. It drives the fan blades with the kinetic energy of the wind during the rainy season. The rotation of the fan blades drives the transmission rod and the auger roller to rotate, which in turn drives the scraper to move on the surface of the first filter plate, automatically cleaning the impurities on the surface of the first filter plate and preventing clogging.

[0021] 3. When the motor in the coagulation device starts, it can not only drive the rotating rod and stirring blade to rotate, so that the rainwater and coagulant can react fully, but also drive the reciprocating screw to rotate through the third bevel gear at the bottom. This causes the moving block to move along the direction of the reciprocating screw in the groove of the protective box, thereby driving the cleaning brush to move on the surface of the second filter plate and cleaning the impurities on the surface of the second filter plate.

[0022] 4. The coagulation unit has a germicidal lamp installed on the top surface of the lower chamber wall to further disinfect rainwater and improve the quality of rainwater treatment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A front view schematic diagram of a high-efficiency coagulation device for treating initial rainwater provided in an embodiment of this utility model;

[0025] Figure 2 A front cross-sectional view of a high-efficiency coagulation device for treating initial rainwater provided in an embodiment of this utility model;

[0026] Figure 3 An enlarged structural diagram of the inlet of a high-efficiency coagulation device for treating initial rainwater provided in an embodiment of this utility model;

[0027] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle.

[0028] In the diagram: 1. Collection box; 11. Partition; 12. Upper chamber; 13. Lower chamber; 14. First feed inlet; 15. Second feed inlet; 16. Support leg; 17. Anti-vibration base; 18. Sliding door; 2. Water inlet; 3. Water outlet; 4. First filter plate; 41. Fan blade; 42. Transmission rod; 43. Screw roller; 44. Scraper; 45. First bevel gear; 46. Second bevel gear; 5. Second filter plate; 51. Motor; 52. Rotating rod; 53. Stirring blade; 54. Protective box; 541. Slide groove; 55. Reciprocating screw; 56. Moving block; 57. Cleaning brush; 58. Third bevel gear; 59. Fourth bevel gear; 6. Germicidal lamp. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] like Figure 1 and Figure 2 As shown, the present invention provides a high-efficiency coagulation device for treating initial rainwater, comprising a collection box 1, a supporting structure fixedly connected to the bottom of the collection box 1, an inlet 2 and an outlet 3 respectively provided at the top and bottom of the collection box 1, a partition 11 provided inside the collection box 1, the partition 11 dividing the inner cavity of the collection box 1 into an upper chamber 12 and a lower chamber 13, a first feed inlet 14 and a second feed inlet 15 provided on the collection box 1, the first feed inlet 14 communicating with the upper chamber 12, and the second feed inlet 15 communicating with the lower chamber 13; the inlet 2... The first filter plate 4 and the first self-cleaning mechanism are fixedly installed inside. The first filter plate 4 is detachably installed at the bottom of the water inlet 2. The first self-cleaning mechanism is located above the first filter plate 4 and is used to clean impurities on the surface of the first filter plate 4. The upper chamber 12 is provided with a second filter plate 5, a second self-cleaning mechanism and a stirring mechanism. The second filter plate 5 is detachably installed on the partition 11. The second self-cleaning mechanism is located above the second filter plate 5 and is fixed on the inner side wall of the upper chamber 12. The stirring mechanism is fixedly installed on the top of the collection tank 1 and is connected to the second self-cleaning mechanism.

[0031] In this embodiment, the water inlet 2 is located above the collection tank 1, and the ground around the water inlet 2 is sloped, which can slow down the initial rainwater flow and prevent direct impact on the internal structure of the coagulation device, thus reducing damage to the structure. The first feed inlet 14 is located above the collection tank 1 and communicates with the upper chamber 12, while the second feed inlet 15 is located on the side wall of the collection tank 1 and communicates with the lower chamber 13. The support structure consists of two legs 16, which are evenly fixed to the bottom of the collection tank 1. Each leg 16 has a shock-absorbing base 17 fixedly installed at its bottom to reduce vibration and ensure the overall stability of the collection tank 1.

[0032] In this embodiment, as Figure 3 As shown, the first self-cleaning mechanism is installed inside the inlet 2, including a fan blade 41, a transmission rod 42, an auger roller 43, and a scraper 44. The fan blade 41 is located on the right side of the top of the inlet 2. One end of the transmission rod 42 is fixedly connected to the fan blade 41, and the other end is fixedly equipped with a first bevel gear 45. The auger roller 43 is vertically arranged, and its top end is rotatably mounted on the top of the inner wall of the inlet 2. A second bevel gear 46 is fixedly sleeved on the outer wall of the auger roller 43. The second bevel gear 46 meshes perpendicularly with the first bevel gear 45. The scraper 44 is fixed to the bottom of the auger roller 43, and the bottom of the scraper 44 is close to the upper surface of the first filter plate 4. The first self-cleaning mechanism can use the kinetic energy of the rainy season wind to drive the fan blade 41 to rotate. Through the meshing first bevel gear 45 and second bevel gear 46, the auger roller 43 is driven to rotate, which can perform preliminary stirring and transportation of rainwater entering the device. When the auger roller 43 rotates, it drives the scraper 44 to move on the surface of the first filter plate 4, scraping away impurities on the surface of the first filter plate 4 to prevent clogging and ensure filtration efficiency.

[0033] In this embodiment, as Figure 2 As shown, the stirring mechanism is located in the upper chamber 12 and includes a motor 51, a rotating rod 52, and stirring blades 53. The motor 51 is fixedly installed above the collection box 1. The upper end of the rotating rod 52 passes through the collection box 1 and is connected to the motor 51, while the lower end extends into the upper chamber 12. Several stirring blades 53 are fixed to the outside of the rotating rod 52, and a third bevel gear 58 is fixedly installed at the bottom of the rotating rod 52. After rainwater undergoes preliminary filtration and enters the upper chamber 12, coagulant is added through the first feed inlet 14. Then, the motor 51 is started, driving the rotating rod 52 and stirring blades 53 to rotate. The stirring blades 53 can strongly stir the rainwater and coagulant in the upper chamber 12, promoting the full coagulation reaction and achieving full destabilization of colloidal substances in the rainwater. Then, flocculant is added to the first feed inlet 14, and the stirring blade 53 stirs slowly to form large flocs. After sufficient flocculation, the motor 51 is turned off to stop stirring, and the sedimentation time begins. Most of the flocs will settle on the surface of the partition plate 11, and a small part will settle on the surface of the second filter plate 5. The flocs settled on the surface of the second filter plate 5 are cleaned by the cleaning brush 57. Finally, all the floc sediments are cleaned through the sliding door 18.

[0034] In this embodiment, the second self-cleaning mechanism is located in the lower chamber 13 and includes a protective box 54, a reciprocating screw 55, a moving block 56, and a cleaning brush 57. The protective box 54 is fixedly installed on the side wall of the upper chamber 12. The reciprocating screw 55 is located in the protective box 54. The left end of the reciprocating screw 55 is rotatably installed on the side wall of the upper chamber 12, and a fourth bevel gear 59 is fixed on the right end of the rod. The fourth bevel gear 59 meshes perpendicularly with the third bevel gear 58 at the bottom of the rotating rod 52. The moving block 56 is movably mounted on the reciprocating screw 55. The surface of the reciprocating screw 55 is provided with an external thread, and the inside of the moving block 56 is provided with an internal thread that matches it. The moving block 56 and the reciprocating screw 55 are connected by a thread, which can convert the rotation of the reciprocating screw 55 into the linear motion of the moving block 56.

[0035] In this embodiment, as Figure 4 As shown, the top surface of the inner wall of the protective box 54 is provided with a sliding groove 541, the top of the moving block 56 is embedded in the sliding groove 541, and the moving block 56 can slide in the sliding groove 541; the cleaning brush 57 is fixed to the bottom of the moving block 56, and the bristles of the cleaning brush 57 are close to the upper surface of the second filter plate 5.

[0036] In this embodiment, after the motor 51 starts, the rotating rod 52 drives the stirring blade 53 to rotate, and through the meshing third main gear and fourth bevel gear 59, drives the reciprocating screw 55 to rotate. When the reciprocating screw 55 rotates, it drives the moving block 56, converting the rotational motion into linear motion, driving the moving block 56 to slide in the slide groove 541, driving the cleaning brush 57 to clean impurities on the surface of the second filter plate 5, preventing clogging and extending the service life of the second filter plate 5, and ensuring filtration efficiency.

[0037] In this embodiment, after rainwater undergoes coagulation and filtration in the upper chamber 12 and enters the lower chamber 13, a weakly alkaline product is added through the second inlet 15 to neutralize the weak acidity of the rainwater. Simultaneously, a germicidal lamp 6 is fixedly installed on the top surface of the inner wall of the lower chamber 13 to further sterilize the rainwater, improving the treatment quality. The outlet 3 connects the lower chamber 13 to the outside and is equipped with a valve to control the drainage of the collection tank 1.

[0038] In this embodiment, the first filter plate 4 and the second filter plate 5 are fixed to the bottom of the water inlet 2 and the partition plate 11 respectively by bolts, which not only ensures the stability of the filter plate installation, but also facilitates cleaning and replacement.

[0039] In this embodiment, the collection box 1 is provided with an openable sliding door 18 at the positions of the first filter plate 4 and the second filter plate 5. After opening the sliding door 18, the first filter plate 4 and the second filter plate 5 can be cleaned and replaced.

[0040] In this embodiment, the specific treatment process of rainwater is as follows: Initially, rainwater enters the coagulation device through inlet 2, is stirred by auger roller 43 and preliminarily filtered by first filter plate 4, and then enters upper chamber 12; then, coagulant is added through first feed inlet 14, and motor 51 is started to drive stirring blades 53, so that rainwater and coagulant react fully. Next, it is further filtered through second filter plate 5 and enters lower chamber 13. Finally, a weakly alkaline product is added through second feed inlet 15 to neutralize the weak acidity of rainwater, and sterilization is carried out in conjunction with germicidal lamp 6 to improve the treatment quality of rainwater; the treated rainwater can be discharged and collected from outlet 3 at the bottom of collection tank 1 to realize the recycling of rainwater. When the coagulation device is running, fan blades 41 drive scraper movement through auger roller 43 to automatically clean impurities on the surface of first filter plate 4, and motor 51 drives cleaning brush 57 movement through reciprocating screw 55 and moving block 56 to automatically clean impurities on the surface of second filter plate 5, preventing the first filter plate 4 and the second filter plate 5 from clogging and improving the quality of rainwater treatment.

[0041] The embodiments described above are some, but not all, embodiments of this utility model. The detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A high-efficiency coagulation device for treating initial rainwater, characterized in that: The system includes a collection box, the bottom of which is fixedly connected to a support structure. The collection box has an inlet and an outlet at the top and bottom, respectively. The collection box has a partition inside, which divides the inner cavity of the collection box into an upper chamber and a lower chamber. The collection box has a first feed inlet and a second feed inlet, the first feed inlet communicating with the upper chamber and the second feed inlet communicating with the lower chamber. A first filter plate and a first self-cleaning mechanism are fixedly installed inside the water inlet. The first filter plate is detachably installed at the bottom of the water inlet, and the first self-cleaning mechanism is located above the first filter plate for cleaning impurities on the surface of the first filter plate. The upper chamber is provided with a second filter plate, a second self-cleaning mechanism and a stirring mechanism. The second filter plate is detachably installed on the partition. The second self-cleaning mechanism is located above the second filter plate and is fixed on the inner side wall of the upper chamber. The stirring mechanism is fixedly installed on the top of the collection box and connected to the second self-cleaning mechanism.

2. The high-efficiency coagulation device for treating initial rainwater according to claim 1, characterized in that: The support structure includes several evenly arranged legs, and a shock-absorbing base is fixedly installed at the bottom of each leg.

3. The high-efficiency coagulation device for treating initial rainwater according to claim 1, characterized in that: The first self-cleaning mechanism includes a fan blade, a transmission rod, an auger roller, and a scraper. One end of the transmission rod is fixedly connected to the fan blade, and the other end is fixedly provided with a first bevel gear. The top end of the auger roller is rotatably mounted on the top of the inner wall of the water inlet. A second bevel gear is fixedly sleeved on the outside of the auger roller, and the second bevel gear meshes perpendicularly with the first bevel gear. The scraper is fixed to the bottom of the auger roller and is close to the upper surface of the first filter plate.

4. The high-efficiency coagulation device for treating initial rainwater according to claim 1, characterized in that: The stirring mechanism includes a motor, a rotating rod, and stirring blades. The motor is fixed above the collection box. The upper end of the rotating rod passes through the collection box and is connected to the motor. Several stirring blades are fixed outside the rotating rod. A third bevel gear is fixed at the bottom of the rotating rod.

5. A high-efficiency coagulation device for treating initial rainwater according to claim 4, characterized in that: The second self-cleaning mechanism includes a protective box, a reciprocating screw, a moving block, and a cleaning brush. The protective box is fixed to the side wall of the upper chamber. The reciprocating screw is located inside the protective box, with one end rotatably mounted on the side wall of the upper chamber and the other end fixedly provided with a fourth bevel gear, which meshes perpendicularly with a third bevel gear. The moving block is movably mounted on the reciprocating screw. The cleaning brush is fixed to the bottom of the moving block, with the bristles of the cleaning brush close to the upper surface of the second filter plate.

6. A high-efficiency coagulation device for treating initial rainwater according to claim 5, characterized in that: The reciprocating lead screw is provided with an external thread, and the moving block is provided with an internal thread that matches it. The moving block and the reciprocating lead screw are connected by a threaded connection.

7. A high-efficiency coagulation device for treating initial rainwater according to claim 5, characterized in that: The top surface of the inner wall of the protective box is provided with a sliding groove, and the top of the moving block is embedded in the sliding groove, allowing the moving block to slide within the sliding groove.

8. A high-efficiency coagulation device for treating initial rainwater according to claim 1, characterized in that: The bottom of the water inlet is sloped.

9. A high-efficiency coagulation device for treating initial rainwater according to claim 1, characterized in that: A germicidal lamp is fixedly installed on the top surface of the inner wall of the lower chamber.

10. A high-efficiency coagulation device for treating initial rainwater according to claim 1, characterized in that: The collection box is equipped with an openable sliding door at the positions of the first filter plate and the second filter plate.

Images