Underground water pollution abatement and remediation equipment and method

Abstract

The invention discloses groundwater pollution treatment and remediation equipment and method, and belongs to the technical field of groundwater remediation equipment. The equipment mainly comprises a treatment box, a first filter assembly, a reset assembly, a scraping assembly and a temporary filter assembly. The first filter grid automatically inclines based on an impurity weight threshold value, drives the scraping plate to slide to remove slag by utilizing water flow gravity, and automatically resets after slag removal; meanwhile, the temporary filtering assembly is automatically put in when the main filtering grid is used for removing slag, the filtering process is ensured to be continuous and uninterrupted, the problem that a traditional fixed grid needs to be shut down for cleaning is solved, full-automatic and uninterrupted filtering and slag removing operation is achieved, external electric driving scraping is not needed, full-automatic operation is achieved through a pure mechanical structure, energy consumption and maintenance cost are remarkably reduced, and the energy-saving and environment-friendly effects are achieved. When impurities intercepted on the surface of the first filter grid are accumulated to a preset weight threshold value, the cleaning action is triggered, and untimely cleaning or energy waste is avoided.

Description

Technical Field

[0001] This invention relates to the field of groundwater remediation equipment technology, specifically to a groundwater pollution treatment and remediation equipment and method. Background Technology

[0002] Groundwater pollution remediation is a key area in environmental engineering. Especially with accelerated industrialization, wastewater treatment technologies need continuous optimization to address complex water quality challenges. Generally, wastewater treatment processes include pretreatment, primary treatment, and advanced treatment. Pretreatment, as the primary step, aims to use physical methods such as bar screens to remove large suspended solids from the water, preventing clogging of subsequent equipment and improving overall efficiency. Bar screens are the core unit of pretreatment.

[0003] Taking mineral resource extraction as an example, deep coal mining activities significantly disturb the regional hydrogeological structure, making them a major source of groundwater pollution. The goaf formed after the coal face advances triggers a redistribution of stress in the overlying strata, resulting in delamination, fractures, and subsidence. When water-conducting faults develop to shallow aquifers, the original closed structure is destroyed, and groundwater, under hydrostatic pressure, rushes into the mine along the fissures, forming large amounts of mine wastewater. Because this wastewater flows through the goaf, impurities are often mainly composed of solid particles of rocks and coal gangue, which are also mixed with oil to form a viscous substance, further exacerbating the difficulty of treatment.

[0004] In existing technologies, preliminary interception is usually achieved through a bar screen, followed by sedimentation in a settling tank. However, when dealing with large-flow, high-impurity water bodies such as mine wastewater, traditional fixed bar screens accumulate screenings extremely quickly, requiring frequent shutdowns for manual cleaning, which severely restricts the continuous operation capability of the treatment system.

[0005] To address these issues, some automated solutions have emerged. These solutions use motors to drive multiple interconnected filter screens in a cyclical rotation, moving the dirty screens to designated cleaning stations where motor-driven scrapers and vibrators clean them. While these solutions reduce the clogging time of individual filter screens to some extent, the core actions of rotating and scraping the screens rely on external power, resulting in high energy consumption and maintenance costs. Furthermore, when cleaning a specific filter screen, the cleaning action is not triggered by the actual degree of clogging but rather by a preset time or flow rate, failing to achieve precise, on-demand cleaning and potentially leading to untimely cleaning or wasted energy. Summary of the Invention

[0006] The purpose of this invention is to overcome the problems in the prior art and provide a groundwater pollution treatment and remediation device and method.

[0007] This invention provides a groundwater pollution treatment and remediation device, including a treatment tank for filtering wastewater. A drain pipe for discharging filtered water is fixedly connected to the bottom side of the treatment tank, and an inlet pipe for connecting a water pump is provided at the top. The device also includes a first filter assembly disposed within the treatment tank. The first filter assembly includes: a first filter grid, horizontally disposed within the treatment tank, hinged to the treatment tank on one side and spaced from the side wall of the treatment tank on the other side; a first channel on one side of the treatment tank, one end of which is placed inside the treatment tank and the other end connected to a collection tank; the first channel is located below the first filter grid; and a reset assembly. The first filter grid is hinged to the side wall of the processing box. A reset assembly is provided between the first filter grid and the processing box. When the first filter grid is loaded to the threshold of the reset assembly, the movable end of the first filter grid rotates clockwise and abuts against the first channel. A scraping assembly is provided on the first filter grid and includes a first reset spring, a scraping plate and a holding groove. The scraping plate is slidably disposed along the slope direction of the first filter grid. The scraping plate has a cavity inside. The holding groove is fixedly connected to the top of the scraping plate and communicates with the bottom of the scraping plate. One end of the first reset spring is fixedly connected to the scraping plate and the other end is fixedly connected to the first filter grid.

[0008] Preferably, a temporary filter assembly is provided on one side of the processing box, including a second filter grid, a rack, a gear and a motor. The second filter grid is horizontally slidably inserted into the processing box and located on top of the first filter grid. The rack is fixedly arranged along the length direction of the second filter grid. The motor is installed on the outside of the processing box through a baffle, and the rotating end is fixedly connected to the gear, which meshes with the rack.

[0009] Preferably, the reset assembly includes a first arc-shaped rod, a second arc-shaped rod, and a second reset spring. The end of the first arc-shaped rod away from the second arc-shaped rod is fixedly connected to the inner sidewall of the processing box. One end of the second arc-shaped rod is slidably inserted into the first arc-shaped rod, and the other end is hinged to the bottom of the first filter grid. A cavity is provided inside the first arc-shaped rod, and the second reset spring is disposed in the cavity, with one end fixedly connected to the inner sidewall of the first arc-shaped rod and the other end fixedly connected to the second arc-shaped rod.

[0010] Preferably, a pressure sensor is provided inside the first arc-shaped rod, and the pressure sensor is surrounded at the connection between the spring and the first arc-shaped rod. A pressure rod is fixedly connected to the end of the second arc-shaped rod near the pressure sensor. When the movable end of the first filter screen abuts against the first channel, the pressure rod squeezes the pressure sensor. A controller is provided on the outside of the processing box. The controller is electrically connected to the pressure sensor and the motor. When the pressure sensor is compressed, it transmits a signal to the controller. At this time, the controller controls the motor to rotate, causing the second filter screen to enter from the outside of the processing box. When the pressure sensor is no longer compressed, the motor reverses.

[0011] Preferably, the top of the first filter grid is surrounded by a plurality of first blocking plates, and the first blocking plate is not arranged on the movable side of the first filter grid. One end of the first reset spring is fixedly connected to the first blocking plate opposite to the movable side of the first filter grid. The first blocking plate is provided with a sliding groove, and the scraping plate is slidably connected to the first blocking plate through a slider.

[0012] Preferably, a push rod is provided in the groove, and an opening is provided on the side of the scraper away from the push rod. A sealing block is inserted into the opening, and a push plate is fixedly connected to the sealing block. The push plate is fixedly connected to the scraper through a third return spring. In the original state, the sealing block blocks the opening, the push rod slides through the slider, and as the scraper slides, the push rod pushes the push plate open, and the sealing block separates from the opening.

[0013] Preferably, the holding trough is configured as an inverted bucket shape, and the holding trough is in a horizontal state when the first filter grid abuts against the first channel.

[0014] Preferably, the second filter grid is surrounded by a second baffle plate on all sides, a telescopic tube is fixedly connected to the bottom of the second filter grid, an opening is provided on the second filter grid, the opening communicates with the telescopic tube, the telescopic tube is placed inside the processing box, a second channel is inserted through one side of the processing box, one end of the second channel is connected to the collection box, and an inclined cleaning plate is fixedly connected at the sliding connection between the second filter grid and the processing box.

[0015] Preferably, the collection box has an opening on one side, and a conveying component is provided inside the collection box.

[0016] A groundwater pollution treatment and remediation device and its usage method include the following steps: The groundwater to be treated is injected into the treatment tank through the inlet pipe; Groundwater is filtered through the first filter screen, and impurities are trapped on the upper surface of the first filter screen. As impurities accumulate, the load on the first filter screen increases. When the weight exceeds the threshold of the reset component, the movable end of the first filter screen is pressed down and rotated clockwise until it comes into contact with the inlet of the first channel. When the first filter screen rotates and tilts, as the amount of water in the holding tank increases, the scraper slides against the tension of the first reset spring, scraping the impurities accumulated on the first filter screen toward the entrance of the first channel, and the impurities fall into the collection box through the first channel. After the impurities are removed, the weight of the first filter screen is reduced, and it rotates in the opposite direction to return to the horizontal filtration state under the action of the reset component. At the same time, the scraper slides in the opposite direction to return to its original position under the pulling force of the first reset spring. The filtered water is discharged through the drain pipe.

[0017] Compared with the prior art, the beneficial effects of the present invention are: This system achieves full automation, continuity, and high efficiency in the filtration and sludge removal operations during groundwater pretreatment. Through the coordinated design of the first filter screen, the reset assembly, and the scraping assembly, an intelligent response system based on mechanical gravity sensing is constructed: when impurities trapped on the surface of the first filter screen accumulate to a preset weight threshold, the reset assembly is pressed, causing the movable end of the first filter screen to rotate clockwise and tilt downwards until it contacts the inlet of the first channel. This action establishes a path for impurity discharge, and the tilt of the screen allows water to accumulate in the collection tank at the top of the scraping assembly. Using the gravity of the stored water as a power source, the scraping plate overcomes the tension of the first reset spring and slides along the screen surface, thus scraping all the accumulated impurities into the first channel and finally into the collection box. After sludge removal, the first filter screen, with its reduced load, automatically resets to a horizontal filtration posture under the action of the reset assembly, and the scraping plate also resets accordingly. This design fundamentally solves the bottleneck problem of traditional fixed screens requiring manual cleaning during shutdown, ensuring uninterrupted operation of the sewage treatment system, significantly improving treatment efficiency and automation. At the same time, the process does not require external power to drive the scraping, saving energy, protecting the environment, and reducing maintenance costs. The cleaning action is triggered when the impurities trapped on the surface of the first filter screen accumulate to a preset weight threshold, avoiding untimely cleaning or energy waste. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the processing box of the present invention.

[0020] Figure 3 for Figure 2 Enlarged structural diagram.

[0021] Figure 4 This is a schematic diagram of the filter component structure of the present invention.

[0022] Figure 5 This is a partial structural schematic diagram of the present invention.

[0023] Figure 6 This is a schematic diagram of the temporary filter component structure of the present invention.

[0024] Explanation of reference numerals in the attached drawings: 1. Processing box; 2. Drain pipe; 3. Inlet pipe; 4. First filter assembly; 41. First filter grid; 42. Reset assembly; 421. First arc-shaped rod; 422. Second arc-shaped rod; 423. Second reset spring; 43. Scraping assembly; 431. First reset spring; 432. Scraping plate; 433. Holding tank; 5. First channel; 6. Temporary filter assembly; 61. Second filter grid; 62. Rack; 63. Gear; 64. Motor; 7. Pressure sensor; 8. Pressure rod; 9. Controller; 10. First baffle plate; 11. Slide groove; 12. Slider; 13. Push rod; 14. Push plate; 15. Sealing block; 16. Third reset spring; 17. Second baffle plate; 18. Telescopic tube; 19. Second channel; 20. Cleaning plate; 21. Collection box. Detailed Implementation

[0025] The following is in conjunction with the appendix Figures 1-6 To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art.

[0026] The terms "first," "second," and similar words used in the specification and claims of this patent application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "inner," "outer," "upper," "lower," "far," "near," "front," and "rear" are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in this invention are not strictly drawn to scale; the specific dimensions and quantity of each structure can be determined according to actual needs. The drawings described in this invention are merely structural schematic diagrams.

[0027] This invention provides a groundwater pollution treatment and remediation device and method, such as... Figures 1-5 As shown, the system includes a treatment tank 1 for filtering wastewater. A drain pipe 2 for discharging filtered water is fixedly connected to the bottom side of the treatment tank 1, and an inlet pipe 3 for connecting a water pump is provided at the top. It also includes a first filter assembly 4 disposed within the treatment tank 1. The first filter assembly 4 includes: a first filter grid 41, horizontally disposed within the treatment tank 1, hinged to the treatment tank 1 on one side and spaced from the side wall of the treatment tank 1 on the other side; a first channel 5 on one side of the treatment tank 1, one end of which is placed inside the treatment tank 1, and the other end connected to a collection box 21; the first channel 5 is located below the first filter grid 41; and a reset assembly 42 disposed on the first filter grid hinged to the side wall of the treatment tank 1. Below 41, a reset assembly 42 is provided between the first filter grid 41 and the processing box 1. The first filter grid 41 bears the weight up to the threshold of the reset assembly 42. The movable end of the first filter grid 41 rotates clockwise and abuts against the first channel 5. The scraping assembly 43 is provided on the first filter grid 41 and includes a first reset spring 431, a scraping plate 432 and a holding groove 433. The scraping plate 432 is slidably arranged along the slope direction of the first filter grid 41. A cavity is provided inside the scraping plate 432. The holding groove 433 is fixedly connected to the top of the scraping plate 432 and communicates with the bottom of the scraping plate 432. One end of the first reset spring 431 is fixedly connected to the scraping plate 432 and the other end is fixedly connected to the first filter grid 41.

[0028] In this embodiment, the filtration and sludge removal operations in the groundwater pretreatment process are fully automated, continuous, and highly efficient. Through the ingenious linkage design of the first filter screen 41, the reset component 42, and the scraping component 43, an intelligent response system based on mechanical gravity sensing is constructed: when the impurities trapped on the surface of the first filter screen 41 accumulate to a preset weight threshold, the reset component 42 is pressed, causing the movable end of the first filter screen 41 to rotate clockwise and tilt downwards until it comes into contact with the inlet of the first channel 5. This action establishes a passage for impurities to be discharged, and on the other hand, the tilt of the screen causes the holding tank 433 at the top of the scraping component 43 to collect water. Using the gravity of the stored water as a power source, the scraping plate 432 is pushed to overcome the tension of the first reset spring 431 and slide along the screen surface, thereby scraping all the accumulated impurities into the first channel 5 and finally falling into the collection box 21. After the sludge removal is completed, the first filter screen 41, with its load reduced, automatically resets to a horizontal filtration posture under the action of the reset component 42, and the scraping plate 432 also resets accordingly. This design fundamentally solves the bottleneck problem of traditional fixed screens requiring manual cleaning during shutdown, ensuring uninterrupted operation of the sewage treatment system, significantly improving treatment efficiency and automation. At the same time, the process does not require external power to drive the scraping, saving energy and protecting the environment, and reducing maintenance costs. The cleaning action is triggered when the impurities trapped on the surface of the first filter screen 41 accumulate to a preset weight threshold, avoiding untimely cleaning or energy waste.

[0029] The first reset spring 431, the second reset spring 423, and the third reset spring 16 in this invention are all made of 304 stainless steel. 304 stainless steel contains chromium and nickel, which can form a dense oxide film that effectively resists corrosion from media such as water, acid, and alkali, preventing failure due to corrosion and extending the service life of the equipment. In addition, 304 stainless steel has high yield strength and fatigue limit, making it suitable for manufacturing spring parts. It can withstand repeated compression and tension, ensuring that the reset assembly 42 and the scraping assembly 43 work stably under weight triggering and avoiding plastic deformation.

[0030] Preferred, such as Figures 1-4 As shown, a temporary filter assembly 6 is provided on one side of the processing box 1, including a second filter grid 61, a rack 62, a gear 63 and a motor 64. The second filter grid 61 is horizontally slidably inserted into the processing box 1 and is located on top of the first filter grid 41. The rack 62 is fixedly arranged along the length of the second filter grid 61. The motor 64 is installed on the outside of the processing box 1 through a baffle, and the rotating end is fixedly connected to the gear 63, which meshes with the rack 62.

[0031] This embodiment provides seamless continuous filtration assurance. By adding a second filter grid 61 driven by a motor 64, gear 63, and rack 62, when the first filter assembly 4 tilts and fails due to slag removal, the temporary filter assembly 6 can be immediately and controllably put into operation. It temporarily undertakes all filtration tasks during the working interval of the first filter grid 41, ensuring that the water flow will never pass through directly without treatment at any time. This achieves truly zero-interruption operation of the entire pretreatment process, which is particularly suitable for mine wastewater treatment scenarios with large inflow and high impurity content, greatly improving the system's reliability and processing capacity.

[0032] Preferred, such as Figures 1-3 As shown, the reset assembly 42 includes a first arc-shaped rod 421, a second arc-shaped rod 422, and a second reset spring 423. The end of the first arc-shaped rod 421 away from the second arc-shaped rod 422 is fixedly connected to the inner wall of the processing box 1. One end of the second arc-shaped rod 422 is slidably inserted into the first arc-shaped rod 421, and the other end is hinged to the bottom of the first filter grid 41. The first arc-shaped rod 421 has a cavity, and the second reset spring 423 is disposed in the cavity. One end of the second reset spring 423 is fixedly connected to the inner wall of the first arc-shaped rod 421, and the other end is fixedly connected to the second arc-shaped rod 422.

[0033] This embodiment provides a precise and reliable reset mechanism. Specifically, it employs a combination of a first arc-shaped rod 421 and a second arc-shaped rod 422 that are interlocked, with a built-in second reset spring 423. This structure not only provides precise arc-shaped trajectory guidance for the rotation of the first filter screen 41, ensuring its moving end accurately abuts against the inlet of the first channel 5, but also makes the reset process smooth and gentle, avoiding rigid impacts between components and extending the service life of the equipment. The structure of the second reset spring 423 built into the cavity of the first arc-shaped rod 421 also effectively prevents sewage corrosion and impurity blockage, further enhancing the durability and reliability of the reset assembly 42 under harsh operating conditions.

[0034] Preferred, such as Figures 1-3 As shown, a pressure sensor 7 is installed inside the first arc-shaped rod 421. The pressure sensor 7 is surrounded by the connection between the spring and the first arc-shaped rod 421. A pressure rod 8 is fixedly connected to the end of the second arc-shaped rod 422 near the pressure sensor 7. When the movable end of the first filter screen 41 abuts against the first channel 5, the pressure rod 8 squeezes the pressure sensor 7. A controller 9 is installed on the outside of the processing box 1. The controller 9 is electrically connected to the pressure sensor 7 and the motor 64. When the pressure sensor 7 is compressed, it transmits a signal to the controller 9. At this time, the controller 9 controls the motor 64 to rotate, causing the second filter screen 61 to enter from the outside of the processing box 1. When the pressure sensor 7 is no longer compressed, the motor 64 reverses.

[0035] In this embodiment, intelligent coordination and automatic control between the first filter screen 41 and the second filter screen 61 are realized. By setting a pressure sensor 7 and a controller 9 linked to the motor 64 in the first arc-shaped rod 421, the mechanical position state of the first filter screen 41 is converted into an electrical signal. When the first filter screen 41 tilts to clean the slag, it can automatically trigger the second filter screen 61 to intervene. When the cleaning is completed, it is made to withdraw. The automatic switching without manual intervention greatly improves the intelligence level and working efficiency of the entire equipment and ensures the continuity and stability of the system operation.

[0036] Preferred, such as Figures 1-4 As shown, the top of the first filter grid 41 is surrounded by several first baffle plates 10. The first baffle plate 10 is not arranged on the movable side of the first filter grid 41. One end of the first reset spring 431 is fixedly connected to the first baffle plate 10 opposite to the movable side of the first filter grid 41. The first baffle plate 10 is provided with a sliding groove 11. The scraping plate 432 is slidably connected to the first baffle plate 10 through the slider 12.

[0037] In this embodiment, by setting a three-sided surrounding first baffle plate 10 on the top of the first filter grid 41, the range of movement of the intercepted impurities is effectively limited, preventing them from scattering from both sides during the filtration and scraping process. This forces all impurities to be concentrated and cleaned only along the side without the first baffle plate 10, thereby significantly improving the working efficiency and thoroughness of the scraping component 43, ensuring that the impurities are completely and smoothly introduced into the collection box 21, and avoiding secondary pollution or blockage.

[0038] Preferred, such as Figures 1-4 As shown, a push rod 13 is provided in the slide groove 11. The scraping plate 432 has an opening on the side away from the push rod 13. A sealing block 15 is inserted into the opening. A push plate 14 is fixedly connected to the sealing block 15. The push plate 14 is fixedly connected to the scraping plate 432 through a third return spring 16. In the original state, the sealing block 15 blocks the opening. The push rod 13 slides through the slider 12. As the scraping plate 432 slides, the push rod 13 pushes the push plate 14 open, and the sealing block 15 separates from the opening.

[0039] In this embodiment, the self-cleaning and light-load reset of the scraper plate 432 are achieved. Through the linkage design between the push rod 13 and the opening with the sealing block 15, when the scraper plate 432 slides to the end of its stroke, the push rod 13 pushes the push plate 14 to open the sealing block 15, allowing the sewage and fine sludge in the inner cavity of the scraper plate 432 and the collection tank 433 to be quickly discharged. This design prevents the scraper plate 432 from returning to the starting position with a large amount of water and sludge, which not only reduces the resistance and load during reset, making the operation smoother, but also makes the collected impurities drier, reducing the processing burden on the subsequent collection box 21.

[0040] Preferred, such as Figure 4 As shown, the holding tank 433 is configured in the shape of an inverted bucket, and when the first filter grid 41 abuts against the first channel 5, the holding tank 433 is in a horizontal state.

[0041] In this embodiment, hydraulic gravity is utilized to the maximum extent possible as the driving force. By specifically designing the holding tank 433 as an inverted bucket shape and keeping it horizontal when the first filter grid 41 abuts against the first channel 5, its capacity and efficiency in receiving water flow are greatly improved. This ensures that enough water can be quickly accumulated to generate the strong gravity required to drive the scraper plate 432 to slide. At the same time, the horizontal state ensures that the gravity of the water can be fully used to push the scraper plate 432 to do work without any component force loss, thereby optimizing the power transmission efficiency and making the scraping action more powerful and reliable.

[0042] Preferred, such as Figures 1-6As shown, the second filter grid 61 is surrounded by the second baffle plate 17 on all sides. The bottom of the second filter grid 61 is fixedly connected to the telescopic tube 18. The second filter grid 61 has an opening that communicates with the telescopic tube 18. The telescopic tube 18 is placed inside the processing box 1. A second channel 19 is inserted through one side of the processing box 1. One end of the second channel 19 is connected to the collection box 21. An inclined cleaning plate 20 is fixedly connected at the sliding connection between the second filter grid 61 and the processing box 1.

[0043] In this embodiment, the temporary filter assembly 6 is endowed with self-cleaning capability. By configuring the second filter grid 61 with a telescopic tube 18 with an opening at the bottom, a second channel 19, and an inclined cleaning plate 20, impurities trapped on its surface can be automatically scraped off by the cleaning plate 20 during its controlled entry and exit from the processing box 1, and then guided into the collection box 21 through the telescopic tube 18 and the second channel 19. This avoids the second filter grid 61 from failing due to clogging, ensuring that it can be put into operation in a clean state each time it is put into use, maintaining the high efficiency of the auxiliary filtration unit and the internal cleanliness of the entire system.

[0044] Preferred, such as Figure 1 As shown, the collection box 21 has an opening on one side, and a conveying component is installed inside the collection box 21.

[0045] In this embodiment, automated transportation of collected impurities is achieved. By setting a conveying component inside the collection box 21, all collected impurities can be automatically and continuously transported to a designated location or container, further reducing the frequency and labor intensity of manual periodic cleaning of the collection box 21. The automated process is extended from in-box filtration and sludge removal to out-of-box waste treatment, achieving greater reduction in manpower and continuous operation, and improving the overall automation level of the entire equipment.

[0046] The method of using the groundwater pollution treatment and remediation equipment of the present invention is as follows: At the start of operation, the water pump connected to the inlet pipe 3 is activated to continuously pump the groundwater from the mine to be treated into the treatment tank 1. The water flow first impacts the first filter screen 41, which is in a horizontal position. Its mesh structure effectively intercepts large suspended solids in the water flow, such as coal gangue fragments, wood chips, plastics, and other solid impurities. The filtered water flows through the first filter screen 41 to the bottom of the tank and is discharged through the drain pipe 2 into the next treatment unit. The intercepted impurities continuously accumulate on the upper surface of the first filter screen 41. During this process, the reset component 42 provides a stable upward support force to the first filter screen 41, keeping it in a horizontal working posture. At the same time, the scraping component 43 is in a stationary state in the initial position and is tightened by the first reset spring 431. As impurities accumulate, the total weight on the first filter screen 41 gradually increases. When the weight exceeds the preset threshold of the reset assembly 42, the movable end of the first filter screen 41 begins to press down, and the entire first filter screen 41 rotates clockwise around the hinge point, tilting its movable end to accurately abut against the entrance of the first channel 5, establishing a passage for impurity discharge; the tilting causes the holding tank 433 at the top of the scraping assembly 43 to begin receiving water flow, and the water volume in the holding tank 433 increases rapidly. The gravity of the water overcomes the tension of the first reset spring 431, pushing the scraper plate 432 to slide along the surface of the first filter screen 41 toward the movable end. During the sliding process, the scraper plate 432 pushes away all the impurities accumulated in front of it, and finally discharges them all into the collection box 21 connected to it through the first channel 5. When the scraper plate 432 slides to the end, its internal linkage mechanism triggers the opening to open, discharging the sewage accumulated in the scraper plate 432, ensuring its light-load reset; After the impurities are removed, the load on the first filter screen 41 is greatly reduced. At this time, the restoring force of the reset assembly 42 causes the first filter screen 41 to rotate counterclockwise, smoothly returning to the horizontal initial filtration position. At the same time, the scraper 432, which is no longer driven by the gravity of the water flow, automatically slides in the opposite direction under the pulling force of the first reset spring 431, returning to the starting position, ready for the next scraping operation.

[0047] If the equipment is equipped with an intelligent control system, when the first filter screen 41 tilts and triggers the pressure sensor 7, the controller 9 will instruct the motor 64 to start, pushing the second filter screen 61 into the housing. During the cleaning of the first filter screen 41, the second filter screen 61 temporarily takes over the filtration task, ensuring uninterrupted water flow filtration. After cleaning is complete, the first filter screen 41 resets, the signal from the pressure sensor 7 disappears, and the second filter screen 61 automatically retracts. Impurities on its surface are scraped into the second channel 19 by the built-in cleaning plate 20, and then enter the collection box 21.

[0048] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A groundwater pollution treatment and remediation device, comprising a treatment box for filtering treatment of sewage, a drain pipe being fixedly connected to a bottom side of the treatment box for discharging filtered water, and a water inlet pipe being provided at a top of the treatment box for connecting a water pump, characterized in that, Further comprising a first filtering assembly arranged in the processing box, the first filtering assembly comprising: a first filtering grid horizontally arranged in the processing box, one side of the first filtering grid being hingedly connected to the processing box, and the other side of the first filtering grid being spaced apart from the side wall of the processing box, the processing box being provided with a first channel, one end of the first channel being arranged in the processing box, and the other end of the first channel being connected with a collecting box, the first channel being arranged below the first filtering grid; a reset assembly arranged below the first filtering grid hingedly connected to the side wall of the processing box, the first filtering grid and the processing box being provided with the reset assembly, when the first filtering grid is loaded to a threshold value of the reset assembly, the movable end of the first filtering grid rotates clockwise and abuts against the first channel; a scraping assembly arranged on the first filtering grid, the scraping assembly comprising a first reset spring, a scraping plate and a containing groove, the scraping plate being slidingly arranged along the gradient direction of the first filtering grid, the scraping plate being provided with a cavity, the containing groove being fixedly connected to the top of the scraping plate, the bottom of the containing groove being communicated with the scraping plate, one end of the first reset spring being fixedly connected to the scraping plate, and the other end of the first reset spring being fixedly connected to the first filtering grid.

2. The groundwater pollution remediation and restoration apparatus of claim 1, wherein, The processing box is provided with a temporary filtering assembly on one side, the temporary filtering assembly comprising a second filtering grid, a rack, a gear and a motor, the second filtering grid being slidingly arranged on the processing box and located on the top of the first filtering grid, the rack being fixedly arranged along the length direction of the second filtering grid, the motor being mounted on the outside of the processing box through a baffle, the gear being fixedly connected to the rotating end of the motor, and the gear being engaged with the rack.

3. The groundwater pollution remediation and restoration apparatus of claim 1, wherein, The reset assembly comprises a first arc-shaped rod, a second arc-shaped rod and a second reset spring, one end of the first arc-shaped rod being fixedly connected to the inner side wall of the processing box away from the second arc-shaped rod, one end of the second arc-shaped rod being slidingly arranged in the first arc-shaped rod, and the other end of the second arc-shaped rod being hingedly connected to the bottom of the first filtering grid, the first arc-shaped rod being provided with a cavity, and the second reset spring being arranged in the cavity, one end of the second reset spring being fixedly connected to the inner side wall of the first arc-shaped rod, and the other end of the second reset spring being fixedly connected to the second arc-shaped rod.

4. The groundwater pollution remediation and restoration apparatus of claim 3, wherein, The first arc-shaped rod is provided with a pressure sensor, the spring is surrounded by the pressure sensor at the connection position of the spring and the first arc-shaped rod, and a pressing rod is fixedly connected to one end of the second arc-shaped rod close to the pressure sensor, when the movable end of the first filtering grid abuts against the first channel, the pressing rod presses the pressure sensor, the processing box is provided with a controller on the outside, the controller is electrically connected with the pressure sensor and the motor, when the pressure sensor is pressed, the controller transmits a signal to the controller, at this time, the controller controls the motor to rotate, so that the second filtering grid enters from the outside of the processing box, and when the pressure sensor is no longer pressed, the motor reverses.

5. The groundwater pollution remediation and restoration apparatus of claim 1, wherein, A plurality of first blocking plates are arranged around the top of the first filtering grid, the first filtering grid is not provided with the first blocking plates on the movable side of the first filtering grid, one end of the first reset spring is fixedly connected to the first blocking plate opposite to the movable side of the first filtering grid, and a sliding groove is formed in the first blocking plate, and the scraping plate is slidingly connected with the first blocking plate through a sliding block.

6. The groundwater pollution remediation and restoration apparatus of claim 5, wherein, The push rod is arranged in the chute, the opening is arranged on the side of the scraping plate away from the push rod, the plugging block is arranged in the opening, the push plate is fixedly connected to the plugging block, the push plate is fixedly connected to the scraping plate through the third reset spring, and the plugging block blocks the opening in the original state.

7. The groundwater pollution remediation and restoration apparatus of claim 1, wherein, The holding groove is arranged in the inverted bucket shape, and the holding groove is in the horizontal state when the first filter grid abuts against the first channel.

8. The groundwater pollution remediation and restoration apparatus of claim 2, wherein, The second filter grid is surrounded by the second blocking plate, the second filter grid is fixedly connected to the telescopic pipe, the second filter grid is provided with the opening, the opening is communicated with the telescopic pipe, the telescopic pipe is arranged in the treatment box, the second channel is arranged in one side of the treatment box, the other end of the second channel is connected to the collecting box, and the cleaning plate is arranged on the second filter grid and the treatment box.

9. The groundwater pollution remediation and restoration apparatus of claim 8, wherein, The collecting box is provided with the opening, and the collecting box is provided with the conveying assembly.

10. The use of a device for groundwater pollution remediation and restoration according to any one of claims 1 to 9, characterized in that, The steps include: The underground water to be treated is injected into the treatment box through the water inlet pipe. The underground water is filtered through the first filter grid, and the impurities are intercepted on the upper surface of the first filter grid. With the accumulation of impurities, the weight of the first filter grid increases, and when the weight exceeds the threshold value of the reset assembly, the movable end of the first filter grid is pressed down and rotates clockwise until it abuts against the inlet of the first channel. When the first filter grid is tilted, with the increase of the water in the holding groove, the scraping plate slides against the pulling force of the first reset spring, and the impurities accumulated on the first filter grid are scraped to the inlet of the first channel, and the impurities fall into the collecting box through the first channel. After the impurities are removed, the weight of the first filter grid is reduced, and the first filter grid is reversely rotated and reset to the horizontal filtering state under the action of the reset assembly, and the scraping plate is reversely reset under the action of the pulling force of the first reset spring; the filtered water is discharged through the drain pipe.

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