Multi-stage ecological sewage intercepting device

Abstract

The utility model relates to a multistage ecological pollutant intercepting device which comprises an adsorption box and a filter box fixed above the adsorption box, the top of the filter box is fixedly connected with a filter frame, a filter screen is arranged in an inner cavity of the filter frame, the top of the filter frame is movably connected with a wiping roller abutting against the surface of the filter screen, and the wiping roller is fixedly connected with the adsorption box. The two sides of the wiping roller are rotationally connected with traveling wheels. The utility model relates to the technical field of sewage filtration. According to the multi-stage ecological sewage intercepting device, the water receiving tank is driven to ascend and descend through the gravity of sewage, the wiping roller is pulled to reciprocate through transmission of the rack and the take-up wheel, a motor or a hydraulic system is not needed, energy is only supplied by a touch switch in a micro-power mode, and compared with a traditional motor driving scheme, energy is saved by 98%; therefore, different working conditions are matched.

Description

Multi-stage ecological sewage interception device Technical Field

[0001] This utility model relates to the field of wastewater filtration technology, specifically a multi-stage ecological wastewater interception device. Background Technology

[0002] Ecological pollution interception devices are key equipment in water environment management, mainly used to intercept suspended solids, garbage, and pollutants in water bodies. Traditional devices mostly use physical filtration combined with adsorption materials, but they face the following technical bottlenecks in long-term operation:

[0003] The primary filtration efficiency is low.

[0004] Most devices use single-layer filter screens, whose pores are easily clogged by flexible impurities such as fibers and algae, requiring frequent shutdowns for manual cleaning, which increases maintenance costs.

[0005] Cleaning systems rely on external energy sources:

[0006] Existing automatic cleaning technologies mainly rely on electric power, using a motor to drive a rotating brush to clean the filter screen. This results in high energy consumption (average daily power consumption of a single machine ≥ 5 kWh), and the mechanical transmission components (gears, chains) are prone to corrosion and jamming in sewage environments, with a failure rate as high as 30%.

[0007] Lack of adaptive adjustment capability:

[0008] Cleaning frequency is mostly controlled by timer, which cannot be dynamically adjusted according to changes in water turbidity or flow rate, resulting in over-cleaning (wasting water resources) during low load and insufficient cleaning (aggravating filter clogging) during high load.

[0009] To address the aforementioned issues, this patent proposes a gravity-driven multi-stage ecological sewage interception device. By combining the gravity changes of the water tank with mechanical transmission, it achieves synergy between filter self-cleaning and deep sewage treatment, breaking through the dependence of traditional technologies on electricity and improving system reliability and adaptability. Summary of the Invention

[0010] In view of the shortcomings of the existing technology, this utility model provides a multi-stage ecological sewage interception device, which solves the problems mentioned above.

[0011] To achieve the above objectives, this utility model employs the following technical solution: a multi-stage ecological sewage interception device, comprising an adsorption box and a filter box fixed above the adsorption box. A filter frame is fixedly connected to the top of the filter box, and a filter screen is built into the inner cavity of the filter frame. A wiping roller that abuts against the surface of the filter screen is movably connected to the top of the filter frame. Wheels are rotatably connected to both sides of the wiping roller. Grooves adapted to the wheels are provided on both sides of the filter frame. A fixed pulley is rotatably connected to the top of the filter frame, and a pull rope fixedly connected to one side of the wiping roller is driven by the surface of the fixed pulley. The pull rope is driven by a drive mechanism. During use, sewage first falls into the filter frame at the top of the filter box, is filtered by the filter screen, and then enters the adsorption box for adsorption. Impurities are retained and accumulated on the filter screen. Simultaneously, some water from the filter box is discharged from the drain valve into the receiving tank. The weight of the receiving tank continuously increases, causing the buffer airbag to descend. Then, a rack drives the take-up wheel to rotate and pull the water in. The rope is wound up, pulling the wiping roller to the right to clean the surface of the filter screen until the water tank descends to its lowest position. At this point, the wiping roller is located on the far right side of the filter screen. The lower contact rod then contacts the contact switch, triggering the drain pipe to drain water from the water tank into the adsorption box. As the weight decreases, the counterweight presses down on the buffer airbag, causing the water tank to rise. It then continuously resets until it reaches its highest position. At this point, the wiping roller, under the influence of gravity, rolls back to its original position via the wheels, performing a second wiping of the filter screen. Then, the upper contact rod contacts the contact switch, closing it. The water tank is now empty. The above steps are repeated continuously, using the weight of the water flow to pull the wiping roller back and forth to wipe the surface of the filter screen. No additional power is required; only the contact switch needs power to complete the cleaning operation, making it more energy-efficient. Furthermore, the cleaning frequency can be adjusted by changing the size of the drain valve, ensuring automatic cleaning at set times.

[0012] As a further embodiment of this utility model: the top of the filter box is closed, and an inlet is provided in the inner cavity below the filter screen at the connection with the filter frame.

[0013] As a further embodiment of this utility model: the filter box has recessed waste storage grooves on the left and right surfaces of the filter frame, and the impurities wiped off by the wiping roller are collected in the waste storage grooves.

[0014] As a further embodiment of this utility model: the driving mechanism includes a fixed frame fixed to the side of the filter box. A counterweight and a water receiving tank are slidably connected to the inner cavity of the fixed frame. Two buffer airbags, which are connected by pipes and fixed above the fixed frame, are fixedly connected to the bottom of the counterweight and the water receiving tank. A drain valve is provided on the side of the filter box above the water receiving tank. A rack is fixedly connected to the side of the filter box. A take-up reel connected to the side of the filter box and driven by a pull rope is rotatably connected to the side of the filter box. A transmission gear that meshes with the rack is fixedly connected to the end of the drive shaft of the take-up reel. The transmission ratio between the transmission gear and the rack is set so that when the water receiving tank descends, it drives the rack to rotate, which drives the take-up reel to rotate and retract the pull rope, thereby driving the wiping roller to move and wipe the surface of the filter screen. This ensures that the long-distance movement of the wiping roller can be achieved by the small movement of the water receiving tank, effectively and completely wiping the filter screen.

[0015] As a further embodiment of this utility model: the bottom of the water receiving tank is connected to a drain pipe, the surface of the drain pipe is provided with a contact switch, the sides of the fixing frame are respectively fixedly connected with an upper contact rod and a lower contact rod, and the inner cavity of the fixing frame is fixed with a guide pipe located below the drain pipe, the guide pipe facing the adsorption box.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. Self-driving cleaning mechanism

[0018] Zero external energy consumption:

[0019] The system utilizes the gravity of the wastewater to drive the lifting and lowering of the receiving tank, and pulls the wiping rollers in reciprocating motion via a rack and pinion drive. It requires no motor or hydraulic system, and the energy consumption comes only from the minimal power supply of the contact switch, saving 98% more energy than traditional motor-driven solutions.

[0020] High reliability:

[0021] By eliminating easily damaged electrical transmission components, the overall mechanical structure lifespan is extended to more than 10 years, making it especially suitable for high humidity and corrosive environments.

[0022] 2. Dynamic cleaning frequency adjustment

[0023] Adaptive Traffic:

[0024] By adjusting the opening of the drain valve, the water filling speed of the water tank can be controlled to match different working conditions.

[0025] In low-flow scenarios: reduce the opening of the drain valve, extend the water injection time, reduce the cleaning frequency, and reduce water waste.

[0026] High flow rate scenario: Open the drain valve to speed up the water filling speed of the water tank, and increase the cleaning frequency to once every 15 minutes to prevent the filter screen from clogging.

[0027] Precise control:

[0028] The upper and lower contact rods are linked with the contact switch to ensure that drainage / reset is automatically triggered when the water tank is raised or lowered to its limit position, thus avoiding mechanical overload.

[0029] 3. Multi-stage interception and deep treatment of sewage

[0030] Primary filtration:

[0031] The filter screen adopts a double-layer stainless steel woven structure to intercept large particles of impurities such as leaves and plastic fragments, with a retention efficiency of ≥90%.

[0032] Secondary adsorption:

[0033] The adsorption box is filled with activated carbon-zeolite composite filter media to deeply treat dissolved organic matter and heavy metal ions, and the effluent quality meets the "Standards for Reuse of Urban Wastewater".

[0034] 4. Efficient waste collection and prevention of waste spread

[0035] Targeted storage:

[0036] The recessed waste storage tanks on both sides of the filter frame, combined with the unidirectional cleaning path of the wiping roller, ensure that impurities slide into the storage tank in a fixed direction, achieving a collection rate of ≥95%.

[0037] Closed-loop management:

[0038] A removable cover is installed on the top of the storage tank, so that the machine can be opened directly to remove impurities without stopping the machine during cleaning, thus avoiding secondary contamination.

[0039] 5. Transmission optimization:

[0040] The gear ratio between the rack and the take-up reel is set according to the dimensions to ensure that the filter screen is fully covered and cleaned within a short stroke. Attached Figure Description

[0041] Figure 1 is a schematic diagram of the structure of this utility model;

[0042] Figure 2 is a top view of the structure of the filter frame of this utility model;

[0043] Figure 3 is a partial enlarged view of point A in Figure 1 of this utility model.

[0044] In the diagram: 1. Adsorption box; 2. Filter box; 3. Filter frame; 4. Fixed pulley; 5. Pull rope; 6. Rack; 7. Take-up reel; 8. Drain valve; 9. Fixing frame; 10. Counterweight; 11. Water receiving tank; 12. Buffer airbag; 13. Drain pipe; 14. Contact switch; 15. Lower contact rod; 16. Guide pipe; 17. Upper contact rod; 18. Traveling wheel; 19. Wiping roller; 20. Filter screen. Detailed Implementation

[0045] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0046] Please refer to Figures 1-3. This utility model provides a technical solution: a multi-stage ecological pollution interception device, including an adsorption box 1 and a filter box 2 fixed above the adsorption box 1. A filter frame 3 is fixedly connected to the top of the filter box 2. A filter screen 20 is built into the inner cavity of the filter frame 3. A wiping roller 19 that abuts against the surface of the filter screen 20 is movably connected to the top of the filter frame 3. Both sides of the wiping roller 19 are rotatably connected to traveling wheels 18. Traveling grooves adapted to the traveling wheels 18 are opened on both sides of the filter frame 3. A fixed pulley 4 is rotatably connected to the top of the filter frame 3. The fixed pulley 4 has a pull rope 5 fixedly connected to one side of the wiping roller 19 via a surface transmission connection. The pull rope 5 is driven by a drive mechanism. During use, sewage first falls into the filter frame 3 at the top of the filter box 2, is filtered by the filter screen 20, and then enters the adsorption box 1 for adsorption. Impurities are retained and accumulated on the filter screen 20. At this time, some water in the filter box 2 is discharged from the drain valve 8 and enters the water receiving tank 11. As the weight of the water receiving tank 11 increases, it squeezes the buffer airbag 12 downwards. Then, the rack 6 drives the take-up wheel 7 to rotate and take in the pull rope 5. The line pulls the wiping roller 19 to the right to clean the surface of the filter screen 20 until the water tank 11 descends to its lowest position. At this time, the wiping roller 19 is located on the far right of the filter screen 20. Then, the lower contact rod 15 contacts the contact switch 14, triggering it to open the drain pipe 13 to drain water. The water in the water tank 11 is discharged into the adsorption box 1 through the drain pipe 13. At this time, the weight continuously decreases, and the counterweight 10 presses down on the buffer airbag 12, causing the water tank 11 to rise. Then, it continuously resets until it rises to the highest position. At this time, the wiping roller 19 moves under the action of gravity. The roller 18 rolls back to its original position, wiping the filter screen 20 a second time. Then, the upper contact rod 17 contacts the contact switch 14, closing the contact switch 14. At this point, the water in the water tank 11 has been drained. The above steps are repeated continuously. The water flow pulls the wiping roller 19 to move back and forth continuously, wiping the surface of the filter screen 20. No additional power is required; only the contact switch 14 needs to be powered to complete the cleaning operation, making it more energy-efficient. Furthermore, the cleaning frequency can be adjusted by changing the size of the drain valve 8, ensuring automatic cleaning at set times.

[0047] The top of the filter box 2 is closed, and an inlet is provided in the inner cavity below the filter screen 20 at the connection with the filter frame 3.

[0048] The filter box 2 has recessed waste storage slots on the left and right sides of the filter frame 3, where impurities wiped off by the wiping roller 19 are collected.

[0049] The driving mechanism includes a fixed frame 9 fixed to the side of the filter box 2. A counterweight 10 and a water receiving tank 11 are slidably connected to the inner cavity of the fixed frame 9. Two buffer airbags 12, which are connected by pipes and fixed above the fixed frame 9, are fixedly connected to the bottom of the counterweight 10 and the water receiving tank 11. A drain valve 8 is opened on the side of the filter box 2 and located above the water receiving tank 11. A rack 6 is fixedly connected to the side of the filter box 2. A take-up reel 7, which is rotatably connected to the side of the filter box 2 and is driven by the pull rope 5, is connected to the end of the drive shaft of the take-up reel 7. A transmission gear that meshes with the rack 6 is fixedly connected to the end of the drive shaft of the take-up reel 7. The transmission ratio between the transmission gear and the rack 6 is set so that when the water receiving tank 11 descends, it drives the rack 6 to rotate, which drives the take-up reel 7 to rotate and retract the pull rope 5. This drives the wiping roller 19 to move and wipe the surface of the filter screen 20. This ensures that the wiping roller 19 can effectively and completely wipe the filter screen 20 by moving the water receiving tank 11 a short distance.

[0050] The bottom of the water receiving tank 11 is connected to a drain pipe 13. A contact switch 14 is provided on the surface of the drain pipe 13. An upper contact rod 17 and a lower contact rod 15 are fixedly connected to the side of the fixing frame 9. A guide pipe 16 located below the drain pipe 13 is fixed in the inner cavity of the fixing frame 9. The guide pipe 16 faces the adsorption box 1.

[0051] 1. Core Innovation of Self-Driven Cleaning Mechanism

[0052] Zero external energy consumption:

[0053] The water receiving tank 11 is raised and lowered by the gravity of the sewage itself. The rack 6 and the take-up wheel 7 drive the wiping roller 19 to reciprocate. No motor or hydraulic system is required. The energy consumption comes only from the small amount of power supplied by the contact switch 14. The daily power consumption is ≤0.1 kWh, which is 98% more energy-efficient than the traditional motor drive solution.

[0054] High reliability:

[0055] By eliminating easily damaged electrical transmission components such as motors and reducers, the overall mechanical structure lifespan is increased to more than 10 years. The average lifespan of traditional equipment is 5 to 7 years, making it especially suitable for high humidity and corrosive environments.

[0056] 2. Dynamic cleaning frequency adjustment

[0057] Adaptive Traffic:

[0058] By adjusting the opening of drain valve 8, the water filling speed of water tank 11 can be controlled to match different working conditions.

[0059] In low-flow scenarios such as the dry season: reduce the opening of the drain valve, extend the water injection time, and reduce the cleaning frequency, such as cleaning once every 2 hours, to reduce water waste.

[0060] In high-flow scenarios such as during heavy rain: open the drain valve to speed up the water filling speed of the water tank, and increase the cleaning frequency to once every 15 minutes to prevent the filter from clogging.

[0061] Precise control:

[0062] The upper and lower contact rods 15 / 17 are linked with the contact switch 14 to ensure that drainage / reset is automatically triggered when the water tank is raised or lowered to the limit position, thus avoiding mechanical overload.

[0063] 3. Multi-stage interception and deep treatment of sewage

[0064] Primary filtration:

[0065] The filter screen 20 adopts a double-layer stainless steel woven structure with a pore size of 0.5-1mm, which can intercept large particles of impurities such as leaves and plastic fragments, with a interception efficiency of ≥90%.

[0066] Secondary adsorption:

[0067] Adsorption box 1 is filled with activated carbon-zeolite composite filter media, achieving a removal rate of ≥60% for dissolved organic matter (COD) and heavy metal ions (Pb). 2 +、Cd 2 +Adsorption rate ≥85% for advanced treatment, and the effluent quality meets the "Standard for Reuse of Urban Wastewater" GB / T18920-2020.

[0068] 4. Efficient waste collection and prevention of waste spread

[0069] Targeted storage:

[0070] The recessed waste storage grooves on both sides of the filter frame 3, combined with the unidirectional cleaning path of the wiping roller 19, ensure that impurities slide into the storage groove in a fixed direction, with a collection rate of ≥95%.

[0071] Closed-loop management:

[0072] A removable cover is installed on the top of the storage tank, so that the machine can be opened directly to remove impurities without stopping the machine during cleaning. This avoids secondary pollution when used with a vacuum truck.

[0073] 5. Transmission optimization:

[0074] The transmission ratio between rack 6 and take-up reel 7 is set according to the size to ensure that the filter screen is fully covered and cleaned within a short stroke.

[0075] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A multi-stage ecological pollution interception device, comprising an adsorption box (1) and a filter box (2) fixed above the adsorption box (1), characterized in that: A filter frame (3) is fixedly connected to the top of the filter box (2). A filter screen (20) is built into the inner cavity of the filter frame (3). A wiping roller (19) that abuts against the surface of the filter screen (20) is movably connected to the top of the filter frame (3). A traveling wheel (18) is rotatably connected to both sides of the wiping roller (19). A traveling groove adapted to the traveling wheel (18) is opened on both sides of the filter frame (3). A fixed pulley (4) is rotatably connected to the top of the filter frame (3). A pull rope (5) that is fixedly connected to one side of the wiping roller (19) is driven by a drive mechanism.

2. The multi-stage ecological sewage interception device according to claim 1, characterized in that: The top of the filter box (2) is closed, and an inlet is provided in the inner cavity below the filter screen (20) at the connection with the filter frame (3).

3. The multi-stage ecological sewage interception device according to claim 1, characterized in that: The filter box (2) has recessed garbage storage slots on the left and right sides of the filter frame (3).

4. The multi-stage ecological sewage interception device according to claim 1, characterized in that: The drive mechanism includes a fixed frame (9) fixed to the side of the filter box (2). The inner cavity of the fixed frame (9) is slidably connected to a counterweight (10) and a water receiving tank (11). The bottom of the counterweight (10) and the water receiving tank (11) are fixedly connected to two buffer airbags (12) that are connected by pipes and fixed above the fixed frame (9). The side of the filter box (2) is provided with a drain valve (8) located above the water receiving tank (11). The side of the filter box (2) is fixedly connected to a rack (6). The side of the filter box (2) is rotatably connected to a take-up reel (7) that is connected to the pull rope (5). The end of the drive shaft of the take-up reel (7) is fixedly connected to a transmission gear that meshes with the rack (6).

5. The multi-stage ecological sewage interception device according to claim 4, characterized in that: The bottom of the water receiving tank (11) is connected to a drain pipe (13), and a contact switch (14) is provided on the surface of the drain pipe (13). An upper contact rod (17) and a lower contact rod (15) are fixedly connected to the side of the fixing frame (9). A guide pipe (16) located below the drain pipe (13) is fixed in the inner cavity of the fixing frame (9). The guide pipe (16) faces the adsorption box (1).

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