A heavy metal contaminated mine groundwater remediation device

Abstract

The application discloses a heavy metal contaminated mine groundwater remediation device, and belongs to the technical field of mine groundwater remediation, which comprises a protective shell, a supporting plate is installed on the upper end of the protective shell, a driving assembly is installed on the upper wall of the supporting plate, an adjusting assembly is movably installed at the lower end of the driving assembly, the adjusting assembly is arranged in the protective shell, a pressure control assembly is further installed in the protective shell, the upper end of the pressure control assembly is connected with the driving assembly, and the lower end of the pressure control assembly is connected with the adjusting assembly. The device can accurately sample and detect the water bodies in different regions of the mine groundwater, and the appropriate remediation agent can be selected according to the detection result and then added in a targeted manner. The remediation and sampling are directly carried out in the original environment of the groundwater through the injection well, the disturbance to the groundwater environment is reduced, and secondary pollution is avoided. According to the sampling and detection results in different stages, the type, adding amount and adding region of the remediation agent can be dynamically adjusted, and the accurate regulation and control of the remediation process can be realized.

Description

Technical Field

[0001] This invention belongs to the field of mine groundwater remediation technology, and particularly relates to a device for remediating heavy metal contaminated mine groundwater. Background Technology

[0002] Groundwater from mines is an important component of water resources. Due to its stable quantity and good quality, it is a vital water source for agricultural irrigation, industrial mining, and urban areas. Mining activities cause serious pollution to groundwater, with common pollutants including heavy metals and organic pollutants. Traditional groundwater remediation methods often employ ex-situ remediation, which involves extracting the contaminated groundwater, treating it on the surface, and then reinjecting it. This method is labor-intensive, costly, and prone to secondary pollution. In-situ remediation technology, which does not require large-scale groundwater extraction and can remediate the groundwater within its original environment, is gaining increasing attention. However, existing in-situ groundwater remediation devices for mines have the following drawbacks:

[0003] 1. The injection of the remediation agent is not precise enough, making it difficult to carry out targeted remediation based on the differences in pollutant concentrations in different areas, resulting in poor remediation effect and serious waste of remediation agent;

[0004] 2. The lack of an effective sampling and testing mechanism makes it impossible to monitor the pollution status and remediation progress of groundwater in different areas in real time, and makes it difficult to dynamically adjust the remediation process.

[0005] 3. Existing equipment is difficult to adapt to the complex geological and hydrological conditions of mines, and causes significant disturbance to the groundwater environment during the repair process. Summary of the Invention

[0006] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides a mine groundwater remediation device for heavy metal pollution, which at least solves some of the above problems.

[0007] The technical solution adopted in this invention is as follows: a remediation device for mine groundwater contaminated with heavy metals, comprising a protective shell, the protective shell being a hollow structure with openings at the top and bottom, a support plate installed at the upper end of the protective shell, a driving component installed on the upper wall of the support plate, the lower end of the driving component being movably disposed within the protective shell, an adjustment component being movably installed at the lower end of the driving component, the adjustment component being disposed within the protective shell, and a pressure control component also being installed within the protective shell, the upper end of the pressure control component being connected to the driving component, and the lower end of the pressure control component being connected to the adjustment component.

[0008] In a preferred embodiment of the present invention, the driving assembly includes a driving rod, which is movably disposed within a protective housing. A plug and an anti-detachment plate are installed at the lower end of the driving rod. The plug is disposed at the upper end of the anti-detachment plate. There are two sets of plugs, which are symmetrically distributed about the center line of the driving rod. The ends of the plugs are equipped with ball bearings.

[0009] The adjustment assembly includes a push rod, which is a hollow structure with an open top. The lower end of the drive rod is movably embedded in the cavity of the push rod. The diameter of the anti-detachment plate is slightly smaller than the inner diameter of the push rod cavity. The inner sidewall of the push rod has two sets of slots, which are symmetrically distributed about the center line of the push rod. The insertion rod is movably engaged in the slot. The slots include a vertical slot and a horizontal slot. The horizontal slot is located at the bottom wall of the push rod cavity. The lower end of the vertical slot is connected to one end of the horizontal slot. The insertion rod can move along the vertical slot to the position of the horizontal slot and rotate into the horizontal slot. The upper end of the push rod cavity is provided with a limiting ring. The inner diameter of the limiting ring is smaller than the diameter of the anti-detachment plate but larger than the diameter of the drive rod. The limiting ring cooperates with the anti-detachment plate to prevent the adjustment assembly from falling off the drive rod.

[0010] The adjustment assembly further includes a toothed conditioner, a connecting ring, an arc-shaped plate, and an incomplete gear. The upper end of the toothed conditioner is connected to the bottom wall of the push rod, the upper end of the arc-shaped plate is connected to the bottom wall of the protective shell, the connecting ring is connected to the lower end of the arc-shaped plate, and multiple sets of incomplete gears are provided. These multiple sets of incomplete gears are evenly distributed in a ring along the circumference of the connecting ring and are movably connected to the connecting ring. The incomplete gears mesh with the toothed conditioner, and a lifting plate is installed on the incomplete gears.

[0011] In a preferred embodiment of the present invention, the pressure control assembly includes a second connecting plate, a compression plate, a folding bladder, and a limiting plate. The limiting plate is disposed on the outer wall of the push rod, and the push rod supports and fixes the limiting plate. The outer wall of the limiting plate and the inner wall of the protective shell form a movable fit, and their fit is similar to that of a piston and a syringe. When the external force on the limiting plate is removed, the limiting plate can maintain a fixed state by means of the friction between it and the inner wall of the protective shell, and thus be fixed to the inner wall of the protective shell. The second connecting plate is movably sleeved on the outer wall of the drive rod. A telescopic rod is installed between the second connecting plate and the limiting plate. The compression plate has an annular structure and is disposed on the bottom wall of the second connecting plate. The upper end of the folding bladder is connected to the bottom wall of the compression plate, and the lower end of the folding bladder is connected to the upper wall of the limiting plate. The folding bladder has an annular cavity structure and forms a sealed chamber with the compression plate and the limiting plate.

[0012] Preferably, the folding bladder has multiple independent chambers, the number of which corresponds to the number of incomplete gears in the adjustment assembly; multiple sets of first connecting pipes are fixedly installed on the upper wall of the second connecting plate, and multiple sets of second connecting pipes are fixedly installed on the bottom wall of the limiting plate, the number of first and second connecting pipes being the same as the number of independent chambers and corresponding one-to-one; the lower end of the first connecting pipe passes through the compression plate and communicates with the corresponding independent chamber in the folding bladder, the upper end of the first connecting pipe extends out of the upper end of the protective shell and is fixed by a mounting seat, and the portion of the first connecting pipe inside the protective shell is a retractable structure; the upper end of the second connecting pipe passes through the limiting plate and communicates with the corresponding independent chamber in the folding bladder, the lower end of the second connecting pipe is fixed to the upper wall of the lifting plate by a mounting seat, and the second connecting pipe is a retractable structure; each set of independent chambers is respectively adapted to one set of first connecting pipes and one set of second connecting pipes; both the first and second connecting pipes are equipped with control valves to control the flow of the pipeline.

[0013] Furthermore, the drive assembly includes a mounting plate, a hydraulic rod, and a first connecting plate. The mounting plate is fixedly disposed on the upper wall of the support plate, and the fixed end of the hydraulic rod is mounted on the mounting plate. The mounting plate supports and fixes the hydraulic rod. The first connecting plate is disposed in the cavity of the protective shell, and the upper wall of the first connecting plate is fixedly connected to the movable end of the hydraulic rod. The upper end of the drive rod is movably connected to the first connecting plate.

[0014] The drive rod has a groove on its outer side wall. The drive assembly also includes a control plate and a drive plate. The control plate has a ring structure. The drive rod is movably disposed through the center of the control plate. The control plate has a retaining plate on its inner side wall. The retaining plate is movably engaged in the groove. The drive plate is movably disposed on the upper wall of the support plate. The drive plate is fixedly connected to the upper end of the control plate.

[0015] As a preferred embodiment of the present invention, the upper wall of the support plate is provided with a first threaded hole and a second threaded hole, and the drive plate is provided with a third threaded hole. When the insertion rod is placed in the vertical groove, the first threaded hole and the third threaded hole are connected through each other and can be fixed by bolts. When the insertion rod is placed in the horizontal groove, the second threaded hole and the third threaded hole are connected through each other and can also be fixed by bolts.

[0016] The beneficial effects of the present invention after adopting the above structure are as follows:

[0017] (1) Through the expandable and retractable lifting plate and the corresponding multiple independent chambers, first connecting pipe and second connecting pipe, it is possible to accurately sample and test the water in different areas of the mine groundwater, and to select appropriate remediation agents for targeted addition based on the test results, thereby greatly improving the remediation effect and saving the amount of remediation agent used.

[0018] (2) The in-situ remediation method is adopted, which does not require large-scale extraction of groundwater. The remediation and sampling are carried out directly in the original groundwater environment through injection wells, which minimizes the disturbance to the groundwater environment and avoids secondary pollution.

[0019] (3) It can dynamically adjust the type, dosage and application area of ​​the repair agent according to the sampling and testing results at different stages, so as to achieve precise control of the repair process and ensure that the repair effect reaches the expected level. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0021] Figure 1 This is a schematic diagram of the structure of a mine groundwater remediation device for heavy metal contamination proposed in this invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of a mine groundwater remediation device for heavy metal contamination proposed in this invention. Figure 2 ;

[0023] Figure 3 This is a cross-sectional view of a mine groundwater remediation device for heavy metal contamination proposed in this invention.

[0024] Figure 4 for Figure 3 A magnified view of a portion at point A;

[0025] Figure 5 for Figure 3 A magnified view of a portion at point B;

[0026] Figure 6 for Figure 3 A magnified view of a portion at point C;

[0027] Figure 7 This is a schematic diagram of the vertical and horizontal grooves proposed in this invention.

[0028] In the attached drawings: 1. Protective shell, 2. Support plate, 3. Drive assembly, 4. Adjustment assembly, 5. Pressure control assembly, 6. Drive rod, 7. Insert rod, 8. Anti-detachment plate, 9. Push rod, 10. Vertical groove, 11. Horizontal groove, 12. Limiting ring, 13. Gear condition, 14. Connecting ring, 15. Arc plate, 16. Incomplete gear, 17. Lifting plate, 18. Second connecting plate, 19. Extrusion plate, 20. Folding bladder, 21. Limiting plate, 22. Telescopic rod, 23. First connecting pipe, 24. Second connecting pipe, 25. Mounting plate, 26. Hydraulic rod, 27. First connecting plate, 28. Slide groove, 29. Control plate, 30. Drive plate, 31. Clamping plate, 32. First threaded hole, 33. Second threaded hole, 34. Third threaded hole. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] like Figures 1-7 As shown, a remediation device for mine groundwater contaminated with heavy metals includes a protective shell 1, which is a hollow structure with openings at the top and bottom. A support plate 2 is installed on the upper end of the protective shell 1, and a drive assembly 3 is installed on the upper wall of the support plate 2. The lower end of the drive assembly 3 is movably disposed inside the protective shell 1, and an adjustment assembly 4 is movably installed on the lower end of the drive assembly 3. The adjustment assembly 4 is disposed inside the protective shell 1, and a pressure control assembly 5 is also installed inside the protective shell 1. The upper end of the pressure control assembly 5 is connected to the drive assembly 3, and the lower end of the pressure control assembly 5 is connected to the adjustment assembly 4.

[0032] The drive assembly 3 includes a drive rod 6, which is movably disposed within the protective shell 1. The lower end of the drive rod 6 is equipped with an insert rod 7 and an anti-detachment plate 8. The insert rod 7 is disposed at the upper end of the anti-detachment plate 8. There are two sets of insert rods 7, which are symmetrically distributed about the center line of the drive rod 6. The ends of the insert rods 7 are equipped with ball bearings.

[0033] The adjustment assembly 4 includes a push rod 9, which is a hollow structure with an open upper end. The lower end of the drive rod 6 is movably embedded in the cavity of the push rod 9. The diameter of the anti-detachment plate 8 is slightly smaller than the inner diameter of the cavity of the push rod 9. The inner sidewall of the push rod 9 has two sets of slots, which are symmetrically distributed about the center line of the push rod 9. The insertion rod 7 is movably engaged in the slot. The slots include a vertical slot 10 and a horizontal slot 11. The horizontal slot 11 is located at the bottom wall of the cavity of the push rod 9. The lower end of the vertical slot 10 is connected to one end of the horizontal slot 11. The insertion rod 7 can move along the vertical slot 10 to the position of the horizontal slot 11 and rotate into the horizontal slot 11. The upper end of the cavity of the push rod 9 is provided with a limiting ring 12. The inner diameter of the limiting ring 12 is smaller than the diameter of the anti-detachment plate 8 and larger than the diameter of the drive rod 6. The limiting ring 12 cooperates with the anti-detachment plate 8 to prevent the adjustment assembly 4 from falling off the drive rod 6.

[0034] The adjustment assembly 4 also includes a tooth condition 13, a connecting ring 14, an arc plate 15, and an incomplete gear 16. The upper end of the tooth condition 13 is connected to the bottom wall of the push rod 9, the upper end of the arc plate 15 is connected to the bottom wall of the protective shell 1, the connecting ring 14 is connected to the lower end of the arc plate 15, and multiple sets of incomplete gears 16 are provided. The multiple sets of incomplete gears 16 are evenly distributed in a ring along the circumference of the connecting ring 14 and are movably connected to the connecting ring 14. The incomplete gears 16 mesh with the tooth condition 13, and a lifting plate 17 is installed on the incomplete gears 16.

[0035] It should be noted that if the lifting plate 17 is initially in a retracted state, when the push rod 9 moves down, it can drive the tooth condition 13 to move down. The tooth condition 13 meshes with the incomplete gear 16, and the incomplete gear 16 rotates clockwise, driving the lifting plate 17 to rotate clockwise, and the lifting plate 17 changes from a retracted state to an extended state.

[0036] When the push rod 9 moves upward, it can drive the tooth condition 13 to move upward. The tooth condition 13 meshes with the incomplete gear 16. The incomplete gear 16 rotates counterclockwise, driving the lifting plate 17 to rotate counterclockwise. The lifting plate 17 changes from the unfolded state to the retracted state.

[0037] The pressure control assembly 5 includes a second connecting plate 18, a compression plate 19, a folding pouch 20, and a limiting plate 21. The limiting plate 21 is disposed on the outer wall of the push rod 9, and the push rod 9 supports and fixes the limiting plate 21. The outer wall of the limiting plate 21 and the inner wall of the protective shell 1 form a movable fit, and their fit is similar to that of a piston and a syringe. When the external force on the limiting plate 21 is removed, the limiting plate 21 can maintain its fixed state by means of the friction between it and the inner wall of the protective shell 1. The second connecting plate 18 is movably sleeved on the outer wall of the drive rod 6. A telescopic rod 22 is installed between the second connecting plate 18 and the limiting plate 21. The extrusion plate 19 is an annular structure and is located on the bottom wall of the second connecting plate 18. The upper end of the folding bladder 20 is connected to the bottom wall of the extrusion plate 19, and the lower end of the folding bladder 20 is connected to the upper wall of the limiting plate 21. The folding bladder 20 is an annular cavity structure and forms a sealed chamber with the extrusion plate 19 and the limiting plate 21.

[0038] The folded bladder 20 has multiple independent chambers, the number of which corresponds to the number of incomplete gears 16 in the adjustment assembly 4. Multiple sets of first connecting pipes 23 are fixedly installed on the upper wall of the second connecting plate 18, and multiple sets of second connecting pipes 24 are fixedly installed on the bottom wall of the limiting plate 21. The number of first connecting pipes 23 and second connecting pipes 24 are the same as the number of independent chambers and correspond one-to-one. The lower end of the first connecting pipe 23 passes through the compression plate 19 and communicates with the corresponding independent chamber within the folded bladder 20, while the upper end of the first connecting pipe 23 extends beyond the upper end of the protective shell 1. The first connecting pipe 23, which is installed and fixed by a mounting base, is a retractable structure within the protective shell 1. The upper end of the second connecting pipe 24 passes through the limiting plate 21 and is connected to the corresponding independent chamber within the folded bladder 20. The lower end of the second connecting pipe 24 is fixed to the upper wall of the lifting plate 17 by a mounting base. The second connecting pipe 24 is a retractable structure. Each set of independent chambers is respectively adapted to one set of the first connecting pipe 23 and one set of the second connecting pipe 24. Both the first connecting pipe 23 and the second connecting pipe 24 are equipped with control valves to control the flow of the pipeline.

[0039] The drive assembly 3 includes a mounting plate 25, a hydraulic rod 26, and a first connecting plate 27. The mounting plate 25 is fixedly disposed on the upper wall of the support plate 2. The fixed end of the hydraulic rod 26 is mounted on the mounting plate 25. The mounting plate 25 supports and fixes the hydraulic rod 26. The first connecting plate 27 is disposed in the cavity of the protective shell 1. The upper wall of the first connecting plate 27 is fixedly connected to the movable end of the hydraulic rod 26. The upper end of the drive rod 6 is movably connected to the first connecting plate 27.

[0040] It should be noted that the operation of the hydraulic rod 26 can push the first connecting plate 27 to move up and down along the protective shell 1, and the first connecting plate 27 can drive the drive rod 6 to move up and down.

[0041] The outer wall of the drive rod 6 is provided with a sliding groove 28. The drive assembly 3 also includes a control plate 29 and a drive plate 30. The control plate 29 has an annular structure. The drive rod 6 is movably disposed through the center of the control plate 29. The inner wall of the control plate 29 is provided with a retaining plate 31. The retaining plate 31 is movably engaged in the sliding groove 28. The drive plate 30 is movably disposed on the upper wall of the support plate 2. The drive plate 30 is fixedly connected to the upper end of the control plate 29.

[0042] It should be noted that when the drive plate 30 is rotated, the drive plate 30 can drive the control plate 29 to rotate. The control plate 29 can drive the drive rod 6 to rotate through the clamping plate 31 and the slide groove 28. The rotation of the drive rod 6 drives the bottommost insertion rod 7 to rotate, so that the insertion rod 7 can disengage from or enter the horizontal groove 11.

[0043] The upper wall of the support plate 2 is provided with a first threaded hole 32 and a second threaded hole 33, and the drive plate 30 is provided with a third threaded hole 34.

[0044] It should be noted that when the insertion rod 7 is placed in the vertical groove 10, the first threaded hole 32 and the third threaded hole 34 are connected through and can be fixed by bolts. When the insertion rod 7 is placed in the horizontal groove 11, the second threaded hole 33 and the third threaded hole 34 are connected through and can also be fixed by bolts.

[0045] Among them, the push rod 9, the limit plate 21, and the tooth condition 13 are all made of lightweight materials.

[0046] The specific usage is as follows:

[0047] When the insert rod 7 is placed in the horizontal groove 11, when the hydraulic rod 26 drives the drive rod 6 to move down, the drive rod 6 can drive the push rod 9 to move down through the insert rod 7 and the horizontal groove 11. The push rod 9 can drive the tooth condition 13 to move down. The tooth condition 13 meshes with the incomplete gear 16. The clockwise rotation of the incomplete gear 16 can drive the lifting plate 17 to rotate clockwise. The lifting plate 17 can drive the second connecting pipe 24 to gradually change from a retracted state to an extended state.

[0048] When the hydraulic rod 26 drives the drive rod 6 to move upward, the drive rod 6 can drive the push rod 9 to move upward through the insert rod 7 and the horizontal groove 11. The push rod 9 can drive the tooth condition 13 to move upward. The tooth condition 13 meshes with the incomplete gear 16. The incomplete gear 16 rotates counterclockwise, driving the lifting plate 17 to rotate counterclockwise. The lifting plate 17 can drive the second connecting pipe 24 to gradually change from the unfolded state to the retracted state. At this time, the drive rod 6 and the push rod 9 move synchronously, and the telescopic rod 22 and the folding bladder 20 are both in the compressed state.

[0049] When the insertion rod 7 is placed in the vertical groove 10, the hydraulic rod 26 works through the first connecting plate 27 to drive the drive rod 6 to move. The drive rod 6 drives the insertion rod 7 to move along the vertical groove 10. The push rod 9 remains in a fixed position under the action of the limiting plate 21. When the drive rod 6 moves upward, it can drive the second connecting plate 18 to move upward. The second connecting plate 18 drives the pleated bladder 20 to move upward through the squeezing plate 19, and the external liquid is drawn into the pleated bladder 20. Then, when the drive rod 6 moves downward, it can drive the second connecting plate 18 to move downward. The second connecting plate 18 drives the pleated bladder 20 to move downward through the squeezing plate 19, and the liquid in the pleated bladder 20 is discharged.

[0050] When the drive plate 30 is rotated, the drive plate 30 can drive the control plate 29 to rotate. The control plate 29 can drive the drive rod 6 to rotate through the clamping plate 31 and the slide groove 28. The rotation of the drive rod 6 drives the bottommost insertion rod 7 to rotate, so that the insertion rod 7 can disengage from or enter the horizontal groove 11. When the insertion rod 7 is placed in the vertical groove 10, the first threaded hole 32 and the third threaded hole 34 are connected through and can be fixed by bolts. When the insertion rod 7 is placed in the horizontal groove 11, the second threaded hole 33 and the third threaded hole 34 are connected through and can also be fixed by bolts.

[0051] When in use, the lifting plate 17 is in a retracted state, the protective shell 1 is placed inside the injection well, the support plate 2 at the upper end of the protective shell 1 is fixed at the wellhead of the injection well, and the lifting plate 17 at the lower end of the protective shell 1 extends into the groundwater of the mine.

[0052] When sampling and testing groundwater in a mine:

[0053] After the insertion rod 7 is placed in the horizontal groove 11, the hydraulic rod 26 works, and pushes the tooth condition 13 to move down through the drive rod 6 and the push rod 9. The tooth condition 13 meshes with the incomplete gear 16. The incomplete gear 16 rotates clockwise, which drives the lifting plate 17 to rotate clockwise. The lifting plate 17 gradually changes from the retracted state to the unfolded state.

[0054] When the lifting plate 17 unfolds to a certain angle, the hydraulic rod 26 stops working; the drive rod 6 is rotated to move the insertion rod 7 from the horizontal groove 11 to the vertical groove 10. The control valve in the first connecting pipe 23 is closed, and the control valve in the second connecting pipe 24 is opened. The hydraulic rod 26 drives the drive rod 6 to move upward, and the drive rod 6 moves upward, which in turn moves the second connecting plate 18 to move upward. The second connecting plate 18 moves the folded bladder 20 upward through the extrusion plate 19. The groundwater at this location is pumped into the independent chamber of the corresponding folded bladder 20. Then, the control valve in the second connecting pipe 24 is closed, and the control valve in the first connecting pipe 23 is opened. The hydraulic rod 26 drives the drive rod 6 to move downward, and the drive rod 6 moves the second connecting plate 18 downward. The second connecting plate 18 moves the folded bladder 20 downward through the extrusion plate 19. The groundwater in the independent chamber of the folded bladder 20 is discharged through the first connecting pipe 23. The groundwater at this location is sampled by external equipment, and then the pollutants in the water at this location are checked. Then, a suitable remediation agent is selected according to the concentration of pollutants at different locations.

[0055] After the liquid in the folded bladder 20 is discharged, the drive rod 6 is positioned at the bottom wall of the push rod 9, the hydraulic rod 26 stops working, the drive rod 6 is rotated so that the insertion rod 7 is positioned in the horizontal groove 11, the above steps are repeated, the lifting plate 17 continues to unfold to a larger angle, and water samples are taken from another area.

[0056] The above steps can be repeated multiple times to test water bodies in different areas.

[0057] Remediation of groundwater in mines:

[0058] After the test is completed, the lifting plate 17 is in its maximum extended state, and the telescopic rod 22 and the folding bladder 20 are in a compressed state. The insertion rod 7 is placed in the horizontal groove 11. After selecting a suitable remediation agent based on the test results of the water body, all the control valves in the first connecting pipe 23 and the second connecting pipe 24 are opened. The external pressure pump delivers the remediation agent to the groundwater through the first connecting pipe 23 and the second connecting pipe 24.

[0059] After the conveying process is completed, the hydraulic rod 26 drives the drive rod 6 to move upward. The drive rod 6 drives the push rod 9 to move upward through the insert rod 7 and the horizontal groove 11. The push rod 9 drives the tooth condition 13 to move upward. The tooth condition 13 meshes with the incomplete gear 16. The incomplete gear 16 rotates counterclockwise, which drives the lifting plate 17 to rotate counterclockwise. The lifting plate 17 changes from an unfolded state to a certain retracted state.

[0060] Then the hydraulic rod 26 stops working. Based on the water quality test results at this location, after selecting a suitable remediation agent, the external pressurization pump delivers the remediation agent to the groundwater through the first connecting pipe 23 and the second connecting pipe 24.

[0061] Simply repeat the above steps.

[0062] Groundwater samples were taken from the restored mine:

[0063] When it is necessary to take samples of the repaired water after the injection of the modification agent, the above sampling process can be repeated.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations 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. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A device for remediating heavy metal-contaminated mine groundwater, characterized in that, The device includes a protective shell, which is a hollow structure with openings at the top and bottom. A support plate is installed on the upper end of the protective shell, and a drive assembly is installed on the upper wall of the support plate. The lower end of the drive assembly is movably disposed inside the protective shell, and an adjustment assembly is movably installed on the lower end of the drive assembly. The adjustment assembly is disposed inside the protective shell, and a pressure control assembly is also installed inside the protective shell. The upper end of the pressure control assembly is connected to the drive assembly, and the lower end of the pressure control assembly is connected to the adjustment assembly. The drive assembly includes a drive rod, which is movably disposed within the protective housing. A plug and an anti-detachment plate are installed at the lower end of the drive rod. The plug is disposed at the upper end of the anti-detachment plate. There are two sets of plugs, which are symmetrically distributed about the center line of the drive rod. The adjustment assembly includes a push rod, which is a hollow structure with an open upper end. The lower end of the drive rod is movably embedded in the cavity of the push rod. The inner sidewall of the push rod has two sets of slots, which are symmetrically distributed about the center line of the push rod. The insertion rod is movably engaged in the slot. The slot includes a vertical slot and a horizontal slot. The horizontal slot is located at the bottom wall of the push rod cavity. The lower end of the vertical slot is connected to one end of the horizontal slot. The insertion rod can move along the vertical slot to the position of the horizontal slot and rotate into the horizontal slot. The upper end of the push rod cavity is provided with a limiting ring, which cooperates with an anti-detachment plate to prevent the adjustment assembly from falling off the drive rod. The adjustment assembly also includes a tooth conditioner, a connecting ring, an arc plate, and an incomplete gear. The upper end of the tooth conditioner is connected to the bottom wall of the push rod, the upper end of the arc plate is connected to the bottom wall of the protective shell, the connecting ring is connected to the lower end of the arc plate, and multiple sets of incomplete gears are provided. The multiple sets of incomplete gears are evenly distributed in a ring along the circumference of the connecting ring and are movably connected to the connecting ring. The incomplete gears mesh with the tooth conditioner, and a lifting plate is installed on the incomplete gears. The pressure control assembly includes a second connecting plate, a compression plate, a folding bladder, and a limiting plate. The limiting plate is disposed on the outer wall of the push rod, and the outer wall of the limiting plate is in a movable fit with the inner wall of the protective shell. The second connecting plate is movably sleeved on the outer wall of the drive rod, and a telescopic rod is installed between the second connecting plate and the limiting plate. The compression plate has an annular structure and is disposed on the bottom wall of the second connecting plate. The upper end of the folding bladder is connected to the bottom wall of the compression plate, and the lower end of the folding bladder is connected to the upper wall of the limiting plate. The folding bladder has an annular cavity structure and forms a sealed chamber with the compression plate and the limiting plate. The folded bladder contains multiple independent chambers, the number of which corresponds to the number of incomplete gears in the adjustment assembly. Multiple sets of first connecting pipes are fixedly installed on the upper wall of the second connecting plate, and multiple sets of second connecting pipes are fixedly installed on the bottom wall of the limiting plate. The number of first and second connecting pipes corresponds one-to-one with the number of independent chambers. The lower end of the first connecting pipe passes through the compression plate and communicates with the corresponding independent chamber within the folded bladder. The upper end of the first connecting pipe extends beyond the upper end of the protective shell and is fixed by a mounting base. The portion of the first connecting pipe inside the protective shell is retractable. The upper end of the second connecting pipe passes through the limiting plate and communicates with the corresponding independent chamber within the folded bladder. The lower end of the second connecting pipe is fixed to the upper wall of the lifting plate by a mounting base. The second connecting pipe is also retractable. Each set of independent chambers corresponds to one set of first connecting pipes and one set of second connecting pipes. Control valves are installed within both the first and second connecting pipes.

2. The mine groundwater remediation device for heavy metal contamination according to claim 1, characterized in that, The drive assembly includes a mounting plate, a hydraulic rod, and a first connecting plate. The mounting plate is fixedly disposed on the upper wall of the support plate. The fixed end of the hydraulic rod is mounted on the mounting plate. The first connecting plate is disposed in the cavity of the protective shell. The upper wall of the first connecting plate is fixedly connected to the movable end of the hydraulic rod. The upper end of the drive rod is movably connected to the first connecting plate.

3. The mine groundwater remediation device for heavy metal contamination according to claim 2, characterized in that, The outer wall of the drive rod is provided with a sliding groove. The drive assembly also includes a control plate and a drive plate. The control plate has a ring structure. The drive rod is movably disposed through the center of the control plate. The inner wall of the control plate is provided with a retaining plate. The retaining plate is movably engaged in the sliding groove. The drive plate is movably disposed on the upper wall of the support plate. The drive plate is fixedly connected to the upper end of the control plate.

4. The mine groundwater remediation device for heavy metal contamination according to claim 3, characterized in that, The upper wall of the support plate is provided with a first threaded hole and a second threaded hole, and the drive plate is provided with a third threaded hole. When the insertion rod is placed in the vertical groove, the first threaded hole and the third threaded hole are connected through each other. When the insertion rod is placed in the horizontal groove, the second threaded hole and the third threaded hole are connected through each other.

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