A heavy metal wastewater treatment device with a precipitation self-cleaning aeration structure

Abstract

The utility model discloses a heavy metal sewage treatment device of precipitate self -cleaning with aeration structure relates to sewage treatment technical field. The utility model discloses a sewage pipe and sediment tank, and the top one side of sediment tank is installed the filter box, and both sides of filter box are installed two groups of hydraulic cylinder, and the output of two groups of hydraulic cylinder all is connected with the fixed frame in the filter box, and the fixed frame inside is connected with the filter screen board, and the one side of filter screen board is connected with the gear through the connecting rod. The utility model discloses the fixed frame moves with two groups of hydraulic cylinder timing drive, makes the gear and the rack mesh drive filter screen board overturn, and the adsorption fixed of cooperation first magnet and second magnet realizes the automatic overturn of filter screen board and empties, and the high pressure gas of backflushing subassembly can clean the residual impurity in filter screen board pore, need not manual cleaning and need not to close sewage pipe valve, and two groups of filter screen board alternate filtration ensure that sewage treatment carries on continuously, and the manual labor intensity is reduced greatly, and the processing efficiency is improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a sedimentation self-cleaning wastewater treatment device with an aeration structure for treating heavy metals. Background Technology

[0002] Heavy metal wastewater refers to industrial wastewater containing heavy metal ions or multiple heavy metal ions. Large amounts of heavy metal wastewater are generated in industrial production, such as in mining, metallurgy, machinery manufacturing, chemical, electronics, and instrumentation industries. Heavy metal ions are difficult to degrade under natural conditions and can pollute water sources, soil, and other environmental factors. Therefore, the treatment of wastewater containing heavy metal ions is particularly important.

[0003] A search revealed a clog-resistant heavy metal wastewater treatment device with application number 202322585273.4. This device filters wastewater entering the sedimentation tank through a pretreatment filtration mechanism to prevent clogging caused by long-term use and wastewater overflow. However, the solid matter filtered out by the filter screen requires manual cleaning at irregular intervals, increasing labor intensity. Furthermore, the wastewater inlet valve needs to be closed during manual cleaning, severely impacting wastewater treatment efficiency. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a sedimentation self-cleaning heavy metal wastewater treatment device with an aeration structure to solve the technical problems in the background art mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sedimentation self-cleaning heavy metal wastewater treatment device with an aeration structure, comprising a sewage pipe and a sedimentation tank. A filter box is installed on one side of the top of the sedimentation tank, and two sets of hydraulic cylinders are installed on both sides of the filter box. The output ends of the two sets of hydraulic cylinders are connected to a fixing frame inside the filter box. A filter screen plate is connected inside the fixing frame. A gear is connected to one side of the filter screen plate through a connecting rod. A rack is installed on the top of the sedimentation tank through a mounting frame. Four first magnets are installed inside the fixing frame, and two second magnets are installed inside the filter screen plate.

[0006] Furthermore, a discharge port is provided on one side of the sedimentation tank, and a collection frame is placed on one side of the sedimentation tank, with the collection frame located below the discharge port.

[0007] By adopting the above technical solution, the solid debris that falls off the filter screen can fall directly into the collection frame through the discharge port, realizing the centralized collection of solid debris, avoiding the accumulation of debris in the sedimentation tank and causing secondary pollution, eliminating the need for manual cleaning of debris, reducing manual operation steps, and facilitating the subsequent sorting and recycling of solid metals mixed in the debris.

[0008] Furthermore, the fixing frame is provided in two sets, and the two sets of fixing frames are distributed parallel to each other vertically, and the fixing frame is slidably connected to the filter box.

[0009] By adopting the above technical solution, two sets of hydraulic cylinders drive the fixed frame to move at timed intervals. The fixed frame drives the filter screen plate connected to it to enter or leave the filter box, and the two sides work alternately to filter the impurities. This achieves automatic cleaning without having to close the drain pipe valve. The sliding connection between the fixed frame and the filter box ensures that the hydraulic cylinder can stably drive the fixed frame and the filter screen plate to move, providing a moving basis for the filter screen plate to be flipped and cleaned.

[0010] Furthermore, the inner wall of the filter box is provided with a guide groove, and the fixing frame is slidably connected to the filter box through the guide groove.

[0011] By adopting the above technical solution, the guide groove can accurately limit the movement trajectory of the fixed frame, ensuring that the fixed frame slides smoothly along the preset path, avoiding collision or jamming between the filter screen and the inner wall of the filter box due to movement deviation, and ensuring the coordination of movement of the two sets of fixed frames when entering the filtration station and the cleaning station.

[0012] Furthermore, the first magnet and the second magnet are attracted to each other by opposite poles, and both the first magnet and the second magnet are wrapped with an anti-corrosion coating.

[0013] By adopting the above technical solution, the four first magnets are distributed in a rectangular array, and the two second magnets correspond to the two first magnets. Utilizing the principle of attraction between opposite poles of magnets, the filter screen can be stably fixed in the frame, preventing the filter screen from shaking or falling off during filtration or movement. When the filter screen is flipped by the gears and racks (flipping angle is 180 degrees), the second magnets correspond to the other two first magnets, fixing the position of the flipped filter screen and preventing excessive flipping of the filter screen, which would affect the backwashing component.

[0014] Furthermore, the filter screen is made of stainless steel and is rotatably connected to the fixing frame.

[0015] By adopting the above technical solutions, stainless steel has good corrosion resistance and can adapt to acidic and alkaline environments in sewage, thus extending the service life of the filter screen. The rotating connection between the filter screen and the fixed frame ensures that when the gear drives the filter screen to flip, the filter screen can rotate around the connection point, realizing the dumping and cleaning of impurities on the surface of the filter screen.

[0016] Furthermore, the gear meshes with the rack.

[0017] By adopting the above technical solution, when the hydraulic cylinder drives the fixed frame to move, the gear rolls along the rack, and the meshing transmission of the gear and rack drives the filter screen to rotate synchronously, so that the filter screen completes the flipping action during the movement, realizing the automatic dumping and resetting of impurities on the surface of the filter screen. No additional drive structure is required, simplifying the overall structure of the device.

[0018] Furthermore, a backflushing assembly is provided on one side of the back of the sedimentation tank. The backflushing assembly includes an air compressor, and the output end of the air compressor is connected to a nozzle through an air pipe.

[0019] By adopting the above technical solution, the high-pressure gas generated by the air compressor is sprayed out from the nozzle through the air pipe, which can backwash the surface of the filter plate, blow off the fine impurities remaining in the pores of the filter plate, and achieve thorough cleaning in conjunction with the rotation of the filter plate to prevent filter clogging; the rotatable nozzle design makes the backwash range wider, ensuring that all areas of the filter plate can be effectively cleaned.

[0020] Furthermore, the nozzle is rotatably connected to the air pipe, and the nozzle can rotate 360 ​​degrees.

[0021] By adopting the above technical solution, the high-pressure gas generated by the air compressor is sprayed out from the nozzle through the air pipe, which can backwash the surface of the filter plate, blow off the fine impurities remaining in the pores of the filter plate, and achieve thorough cleaning in conjunction with the rotation of the filter plate to prevent filter clogging; the rotatable nozzle design makes the backwash range wider, ensuring that all areas of the filter plate can be effectively cleaned.

[0022] Furthermore, an aeration disc is provided at the bottom of the sedimentation tank, and the aeration disc is connected to an air compressor through a pipe.

[0023] By adopting the above technical solution, the air compressor delivers gas to the aeration disc through the pipeline. The bubbles generated by the aeration disc can stir the sewage as they rise in the sedimentation tank, so that the heavy metal ions in the sewage can fully contact and react with the precipitant, thereby improving the sedimentation efficiency. A solenoid valve is installed on the outside of the air pipe, which can control the opening and closing of the air pipe, so as to realize the independent operation control of the backwash component and the aeration disc, and flexibly switch the working mode according to the sewage treatment needs.

[0024] In summary, the present invention has the following main advantages:

[0025] 1. This utility model is equipped with a hydraulic cylinder, a fixed frame, a filter screen plate, gears and racks. Two sets of hydraulic cylinders drive the fixed frame to move at regular intervals, so that the gears and racks mesh and drive the filter screen plate to flip. With the attraction and fixation of the first magnet and the second magnet, the filter screen plate can be automatically flipped and tilted. At the same time, the high-pressure gas of the backflushing component can clean the residual impurities in the pores of the filter screen plate. No manual cleaning is required and there is no need to close the sewage pipe valve. The two sets of filter screen plates filter alternately to ensure continuous sewage treatment, greatly reducing the intensity of manual labor and significantly improving the treatment efficiency.

[0026] 2. This utility model achieves functional reuse and saves equipment costs by setting the aeration disc and backflushing component to share an air compressor; the bubbles generated by the aeration disc can stir the sewage in the sedimentation tank, so that heavy metal ions can fully contact and react with the precipitant, thereby improving sedimentation efficiency; the cooperation between the discharge port and the collection frame enables the centralized collection of impurities, which is convenient for subsequent sorting and recycling of solid metals, reducing resource waste, and avoiding secondary pollution caused by the accumulation of impurities. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the back structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the gear structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the fixing frame structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the connecting rod structure of this utility model.

[0032] In the diagram: 1. Sewage pipe; 2. Sedimentation tank; 3. Filter box; 4. Hydraulic cylinder; 5. Fixing frame; 6. First magnet; 7. Filter screen plate; 8. Connecting rod; 9. Gear; 10. Second magnet; 11. Mounting frame; 12. Rack; 13. Discharge port; 14. Collection frame; 15. Backflushing assembly; 1501. Air compressor; 1502. Air pipe; 1503. Nozzle; 16. Aeration disc; 17. Guide groove. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The embodiments of this utility model will be described below based on its overall structure.

[0035] Example 1: A sedimentation self-cleaning heavy metal wastewater treatment device with an aeration structure, such as... Figures 1-5 As shown, the system includes a drain pipe 1 and a sedimentation tank 2. A filter box 3 is installed on one side of the top of the sedimentation tank 2. Two sets of hydraulic cylinders 4 are installed on both sides of the filter box 3. The output ends of the two sets of hydraulic cylinders 4 are connected to a fixing frame 5 inside the filter box 3. A filter screen plate 7 is connected inside the fixing frame 5. A gear 9 is connected to one side of the filter screen plate 7 through a connecting rod 8. A rack 12 is installed on the top of the sedimentation tank 2 through a mounting frame 11. Four first magnets 6 are installed inside the fixing frame 5. Two second magnets 10 are installed inside the filter screen plate 7. A discharge port 13 is provided on one side of the sedimentation tank 2. A collection frame 14 is placed on one side of the sedimentation tank 2 and is located below the discharge port 13. Solid debris that falls off the filter screen plate 7 can fall directly into the collection frame 14 through the discharge port 13, realizing the centralized collection of solid debris, avoiding the accumulation of debris in the sedimentation tank 2 and causing secondary pollution. There is no need for manual cleaning of debris, reducing manual operation steps, and facilitating the subsequent sorting and recycling of solid metal mixed in the debris.

[0036] See Figures 1-5 In the above embodiment, there are two sets of fixed frames 5, and the two sets of fixed frames 5 are arranged in parallel vertically. The fixed frames 5 are slidably connected to the filter box 3. The two sets of hydraulic cylinders 4 drive the fixed frames 5 to move at regular intervals. The fixed frames 5 drive the filter screen plates 7 connected to them to enter or leave the filter box 3, and alternately operate to filter the impurities, so as to achieve automatic cleaning without closing the drain pipe 1 valve. The sliding connection between the fixed frames 5 and the filter box 3 ensures that the hydraulic cylinders 4 can stably drive the fixed frames 5 and the filter screen plates 7 to move, providing a moving basis for the flipping and cleaning of the filter screen plates 7.

[0037] See Figure 3 In the above embodiment, the inner wall of the filter box 3 is provided with a guide groove 17, and the fixing frame 5 is slidably connected to the filter box 3 through the guide groove 17. The guide groove 17 can accurately limit the movement trajectory of the fixing frame 5, ensuring that the fixing frame 5 slides smoothly along the preset path, avoiding collision or jamming between the filter screen plate 7 and the inner wall of the filter box 3 due to movement deviation, and ensuring the coordination of movement of the two sets of fixing frames 5 when entering the filtration station and the cleaning station.

[0038] See Figure 4 and Figure 5In the above embodiment, the first magnet 6 and the second magnet 10 are attracted by opposite poles, and the outer sides of the first magnet 6 and the second magnet 10 are covered with an anti-corrosion coating. The four first magnets 6 are distributed in a rectangular array, and the two second magnets 10 correspond to two of the first magnets 6. By utilizing the principle of attraction between opposite poles of magnets, the filter screen 7 can be stably fixed in the fixing frame 5 to prevent the filter screen 7 from shaking or falling off during filtration or movement. When the filter screen 7 is flipped under the action of the gear 9 and the rack 12 (the flipping angle is 180 degrees), the second magnet 10 corresponds to the other two first magnets 6 to fix the position of the filter screen 7 after flipping, so as to avoid the filter screen 7 being over-flipped and affecting the backwashing component 15 rinsing.

[0039] See Figures 1-5 In the above embodiments, the filter screen plate 7 is made of stainless steel and is rotatably connected to the fixing frame 5. Stainless steel has good corrosion resistance and can adapt to the acid and alkaline environment in sewage, thus extending the service life of the filter screen plate 7. The rotatable connection between the filter screen plate 7 and the fixing frame 5 ensures that when the gear 9 drives the filter screen plate 7 to flip, the filter screen plate 7 can rotate around the connection point, thereby realizing the dumping and cleaning of impurities on the surface of the filter screen plate 7.

[0040] See Figure 3 In the above embodiment, gear 9 meshes with rack 12. When hydraulic cylinder 4 drives fixed frame 5 to move, gear 9 rolls along rack 12. The meshing transmission of gear 9 and rack 12 drives filter screen plate 7 to rotate synchronously, so that filter screen plate 7 completes the flipping action during the movement, realizing the automatic dumping and resetting of impurities on the surface of filter screen plate 7. No additional drive structure is required, simplifying the overall structure of the device.

[0041] Example 2: To avoid filter clogging affecting the filtration effect, Example 2 is an improvement on Example 1. (See attached document.) Figure 1 and Figure 2 A backflushing assembly 15 is provided on one side of the back of the sedimentation tank 2. The backflushing assembly 15 includes an air compressor 1501. The output end of the air compressor 1501 is connected to a nozzle 1503 through an air pipe 1502. The high-pressure gas generated by the air compressor 1501 is sprayed out from the nozzle 1503 through the air pipe 1502, which can backflush and clean the surface of the filter screen plate 7, blowing off the fine impurities remaining in the pores of the filter screen plate 7. With the filter screen plate 7 flipping, a thorough cleaning is achieved, preventing the filter screen from clogging. The rotatable design of the nozzle 1503 makes the backflushing range wider, ensuring that all areas of the filter screen plate 7 can be effectively cleaned.

[0042] See Figure 1 and Figure 2In the above embodiment, the nozzle 1503 is rotatably connected to the air pipe 1502, and the nozzle 1503 can rotate 360 ​​degrees. The high-pressure gas generated by the air compressor 1501 is sprayed out from the nozzle 1503 through the air pipe 1502, which can backwash and clean the surface of the filter plate 7, blowing off the fine impurities remaining in the pores of the filter plate 7. Combined with the flipping of the filter plate 7, thorough cleaning is achieved to prevent filter clogging. The rotatable design of the nozzle 1503 makes the backwash range wider, ensuring that all areas of the filter plate 7 can be effectively cleaned.

[0043] See Figure 2 In the above embodiment, an aeration disc 16 is provided at the bottom of the sedimentation tank 2, and the aeration disc 16 is connected to an air compressor 1501 through a pipe. The air compressor 1501 delivers gas to the aeration disc 16 through the pipe. The bubbles generated by the aeration disc 16 can stir the sewage as they rise in the sedimentation tank 2, so that the heavy metal ions in the sewage can fully contact and react with the precipitant, thereby improving the sedimentation efficiency. A solenoid valve is installed on the outside of the air pipe 1502, which can control the opening and closing of the air pipe 1502, so as to realize the independent operation control of the backflushing component 15 and the aeration disc 16, and flexibly switch the working mode according to the sewage treatment needs.

[0044] The implementation principle of this utility model is as follows: Before the operator starts the equipment, it is necessary to ensure that one set of the two sets of fixed frames 5 is located inside the filter box 3 (filtration station) and the other set is located outside the filter box 3 (cleaning station). When the equipment is running, sewage enters the filter box 3 through the sewage pipe 1 and flows through the filter screen plate 7 of the filtration station. Solid impurities are intercepted on the surface of the filter screen plate 7, and the filtered sewage enters the sedimentation tank 2. When the filter screen plate 7 of the filtration station needs to be cleaned, the corresponding hydraulic cylinder 4 is activated, driving the fixed frame 5 to slide along the guide groove 17 on the inner wall of the filter box 3, so that the fixed frame 5 drives the filter screen plate 7 to move out of the filter box 3. During the movement, the gear 9 on one side of the filter screen plate 7 meshes with the rack 12 on the top of the sedimentation tank 2. The gear 9 rotates with the movement of the fixed frame 5, and drives the filter screen plate 7 to rotate synchronously through the connecting rod 8 (rotation angle is 180 degrees). At this time, the second magnet 10 inside the filter screen plate 7 and the other two first magnets 6 inside the fixed frame 5 attract each other, fixing the filter screen plate 7 in the rotated position. At the same time, backflushing... The air compressor 1501 of component 15 starts, and high-pressure gas is sprayed out from the 360-degree rotating nozzle 1503 through the air pipe 1502 to backwash and clean the surface and pores of the flipped filter screen plate 7. Impurities fall off under the action of gravity and airflow and fall into the collection frame 14 below through the discharge port 13 of the sedimentation tank 2. During the above cleaning process, another set of hydraulic cylinders 4 drives the corresponding fixing frame 5 to move the filter screen plate 7 along the guide groove 17 into the filter box 3 and enter the filtration station to take over the filtration work, ensuring that the sewage treatment is uninterrupted. Inside the sedimentation tank 2, the air compressor 1501 delivers gas to the aeration disc 16 through the pipeline. The bubbles generated by the aeration disc 16 stir the sewage as they rise, so that the heavy metal ions in the sewage are fully mixed and reacted with the added precipitant, accelerating the precipitation of heavy metals. After the treatment is completed, the settled sludge can be discharged periodically, the purified water enters the next treatment stage, and the impurities in the collection frame 14 can be removed periodically to sort and recover the solid metals, realizing resource reuse.

[0045] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A sedimentation self-cleaning heavy metal wastewater treatment device with an aeration structure, comprising a sewage pipe (1) and a sedimentation tank (2), characterized in that: A filter box (3) is installed on one side of the top of the sedimentation tank (2). Two sets of hydraulic cylinders (4) are installed on both sides of the filter box (3). The output ends of the two sets of hydraulic cylinders (4) are connected to a fixing frame (5) inside the filter box (3). A filter screen plate (7) is connected inside the fixing frame (5). A gear (9) is connected to one side of the filter screen plate (7) through a connecting rod (8). Two sets of racks (12) are installed on the top of the sedimentation tank (2) through a mounting frame (11). Four first magnets (6) are installed inside the fixing frame (5). Two second magnets (10) are installed inside the filter screen plate (7).

2. The sedimentation self-cleaning heavy metal wastewater treatment device with an aeration structure according to claim 1, characterized in that: The sedimentation tank (2) has a discharge port (13) on one side and a collection frame (14) is placed on one side of the sedimentation tank (2), and the collection frame (14) is located below the discharge port (13).

3. The sedimentation self-cleaning heavy metal wastewater treatment device with an aeration structure according to claim 1, characterized in that: The fixing frame (5) is provided in two sets, and the two sets of fixing frames (5) are distributed in parallel vertically.

4. A sedimentation self-cleaning heavy metal wastewater treatment device with an aeration structure according to claim 3, characterized in that: The filter box (3) has a guide groove (17) on its inner wall, and the fixing frame (5) is slidably connected to the filter box (3) through the guide groove (17).

5. A sedimentation self-cleaning heavy metal wastewater treatment device with an aeration structure according to claim 1, characterized in that: The first magnet (6) and the second magnet (10) are attracted to each other by opposite poles, and the first magnet (6) and the second magnet (10) are wrapped with an anti-corrosion coating.

6. The sedimentation self-cleaning heavy metal wastewater treatment device with an aeration structure according to claim 1, characterized in that: The filter plate (7) is made of stainless steel and is rotatably connected to the fixing frame (5).

7. A sedimentation self-cleaning heavy metal wastewater treatment device with an aeration structure according to claim 1, characterized in that: The gear (9) meshes with the rack (12).

8. A sedimentation self-cleaning heavy metal wastewater treatment device with an aeration structure according to claim 1, characterized in that: The sedimentation tank (2) is provided with a backflushing assembly (15) on one side of the back. The backflushing assembly (15) includes an air compressor (1501), and the output end of the air compressor (1501) is connected to a nozzle (1503) through an air pipe (1502).

9. A sedimentation self-cleaning heavy metal wastewater treatment device with an aeration structure according to claim 8, characterized in that: The nozzle (1503) is rotatably connected to the air pipe (1502), and the nozzle (1503) can rotate 360 ​​degrees.

10. A sedimentation self-cleaning heavy metal wastewater treatment device with an aeration structure according to claim 8, characterized in that: The sedimentation tank (2) is equipped with an aeration plate (16) at the bottom inside, and the aeration plate (16) is connected to the air compressor (1501) through a pipe.

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