A heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines

Abstract

This invention discloses a heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines, belonging to the field of soil and water remediation technology. The heavy metal adsorption device includes a base, a support fixed to the base, and a reaction cylinder mounted on the support; a treatment cylinder positioned above the support and connected to the reaction cylinder; a feed hopper fixed to the top of the treatment cylinder for discharging soil; and a crushing component inside the treatment cylinder for breaking up clumps of soil within the cylinder. The treatment cylinder also includes an anti-clogging component connected to the crushing component. This invention facilitates spray purification of the crushed soil, allowing soil particles to fully react and mix with the spray liquid, washing out or consolidating heavy metals in the soil, preventing further diffusion of heavy metals in the soil, and ensuring soil remediation efficiency and effectiveness.

Description

Technical Field

[0001] This invention relates to the field of soil and water remediation technology, and in particular to a heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines. Background Technology

[0002] Wastewater from metal mines mainly comes from mine pit water discharged during mining operations, rainwater runoff from waste rock dumps, and washing and tailings wastewater discharged from ore dressing plants. Since metal ore bodies are often accompanied by sulfide minerals of various metals, during the mining process, these minerals, under the combined action of air, water, and bacteria, form ferric sulfate solution, which dissolves various metal ions from the ore, thus producing acidic wastewater containing manganese, iron, lead, etc. The wastewater discharge or seeps into the soil under the action of rainfall, resulting in excessive levels of heavy metals in the soil and water of the mine.

[0003] Currently, the main methods for heavy metal remediation include bioaccumulation, soil replacement, and spray purification. Spray purification is the most commonly used method. However, existing equipment relies on leaks to allow the liquid to naturally seep into the soil and react with it. This slow seepage leads to low efficiency in soil and water remediation, resulting in higher levels of heavy metal residue and poor remediation outcomes. Summary of the Invention

[0004] The impetus for this invention stems from an in-depth analysis of the soil and water pollution problems in abandoned open-pit mines. In practical investigations, it was found that while traditional remediation methods such as bioaccumulation or soil replacement are effective, they are complex to operate, costly, and unsuitable for large-scale mining applications. Spray purification, as a common in-situ remediation method, has the advantage of simple operation; however, existing equipment often suffers from filter blockage due to soil agglomeration, resulting in slow infiltration of the spray solution, insufficient contact and reaction with the soil, high heavy metal residue rates, low remediation efficiency, and unstable effects. This prompted us to start with soil pretreatment and develop an integrated device. Through mechanical crushing and dynamic anti-clogging design, the device improves soil granulation and spray reaction efficiency, achieving effective leaching or consolidation of heavy metals and preventing their continued diffusion in the soil. Based on the actual needs of the mining site, this design progressively optimizes the process from soil crushing to reaction mixing, ensuring the device is simple, reliable, and easy to industrialize. The purpose of this invention is to solve the problems existing in the prior art by proposing an integrated heavy metal adsorption device for the remediation of soil and water pollution in abandoned open-pit mines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines, comprising a base and further comprising: A support portion, which is fixed on a base, and a reaction cylinder is provided on the support portion; A processing cylinder is disposed on the upper side of the support and is connected to the reaction cylinder; A feed hopper, which is fixed to the top of the processing cylinder, is used for discharging soil. And a crushing assembly, which is disposed inside the processing cylinder and is used to crush clumps of soil inside the processing cylinder; The processing cylinder is also equipped with an anti-clogging component, which is connected to the crushing component.

[0006] Preferably, the treatment cylinder includes a main cylinder body and a rotating ring rotatably connected to the main cylinder body. The bottom of the main cylinder body is configured as a filter plate structure, and the soil particles in the treatment cylinder pass through the filter plate structure into the reaction cylinder.

[0007] Preferably, the crushing assembly includes rotating tubes rotatably connected to both ends of the main cylinder, a connecting plate fixedly connected between the two rotating tubes, a rotating rod rotatably connected between the connecting plate and the rotating ring, a plurality of crushing rods equidistantly arranged on the rotating rod, a driven bevel gear fixedly installed at the end of the rotating rod, and a fixed bevel gear fixedly installed on the outside of the main cylinder and meshing with the driven bevel gear.

[0008] Preferably, the anti-clogging component includes an arc-shaped filter tube fixedly connected to the main cylinder by a connecting rod and a flexible filter screen fixed inside the arc-shaped filter tube. The arc-shaped filter tube is coaxially arranged with the rotating tube and is placed inside the rotating tube. A plurality of material-pulling rods are arranged circumferentially on the connecting plate.

[0009] Preferably, the support includes two side rings and a fixed ring that are fixedly connected to the base by a support. The top of the fixed ring is provided with a feed inlet. A telescopic outer shell is fixed between the filter plate structure at the bottom of the processing cylinder and the feed inlet. A spray head is fixed inside the telescopic outer shell. The spray head is connected to a spraying system through a pipeline.

[0010] Preferably, the reaction cylinder is rotatably connected within the side ring and the fixed ring, a drive motor is fixedly mounted on the base, the output shaft of the drive motor is connected to a drive gear, and a gear ring that meshes with the drive gear is fixedly mounted on the outside of the reaction cylinder.

[0011] Preferably, the reaction cylinder has a notch at the fixed ring that matches the feed inlet, and a material-pushing plate is fixed to the inner wall of the reaction cylinder, the material-pushing plate being spiral-shaped.

[0012] Preferably, a support plate is fixed on the side ring, a reciprocating screw is rotatably connected to the support plate, a nut seat is threaded onto the reciprocating screw, an L-shaped plate is fixed on the nut seat and is rotatably connected to the reciprocating screw and the rotating tube, a second bevel gear is fixed at the bottom of the reciprocating screw, and a first bevel gear that meshes with the second bevel gear is provided on the outside of the reaction cylinder.

[0013] Preferably, a third bevel gear is rotatably connected to the L-shaped plate and slidably connected to the smooth section of the reciprocating screw, a fourth bevel gear is provided on the rotating tube and meshes with the third bevel gear, a guide groove is provided on the smooth section of the reciprocating screw, and a guide strip is fixed on the inner wall of the third bevel gear and slidably connected to the guide groove.

[0014] Preferably, a rotating rod is rotatably connected inside the arc-shaped filter tube. A protrusion that moves against the flexible filter screen is fixed on the rotating rod. A fifth bevel gear is fixed at the end of the rotating rod. A slide rod is slidably provided in the keyway at the top of the reciprocating screw. A movable block is provided between the rotating rod and the slide rod. A sixth bevel gear that meshes with the fifth bevel gear is provided on the slide rod.

[0015] Compared with existing technologies, this invention provides a heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines, which has the following beneficial effects: 1. In this invention, the soil is fed and crushed by a treatment cylinder in conjunction with a reaction cylinder, which facilitates rapid spraying and purification of the crushed soil. This allows the soil particles to fully react and mix with the spray liquid, washing out or consolidating heavy metals in the soil and preventing them from continuing to diffuse in the soil. This ensures the efficiency and effectiveness of soil remediation and solves the problem that in existing in-situ remediation technologies, the spray liquid cannot fully react with the soil, resulting in poor soil remediation effects and a large amount of heavy metal residue in the soil.

[0016] 2. In this invention, by controlling the operation of the drive motor, the output shaft of the drive motor drives the drive gear to rotate. The drive gear meshes with the gear ring on the outside of the reaction cylinder, causing the gear ring to drive the opposite side ring and the fixed ring of the reaction cylinder to rotate. This avoids uneven distribution of the remediation agent due to the reaction cylinder being stationary, thereby ensuring the overall effect of soil remediation and avoiding the problem of heavy metal residue in the soil at some locations of the reaction cylinder.

[0017] 3. In this invention, by setting a material-pushing plate inside the reaction cylinder, the reaction cylinder can further drive the internal material to tumble during rotation, thereby enhancing the mixing and reaction effect of soil and remediation agent. The material-pushing plate is set in a spiral shape, which can make the material inside the reaction cylinder transported in one direction. By controlling the drive motor to rotate forward and reverse alternately, the material is made to tumble back and forth inside the reaction cylinder, thereby improving the removal effect of heavy metals inside the soil.

[0018] 4. In this invention, when the reaction cylinder rotates, the first bevel gear on the reaction cylinder meshes with the second bevel gear on the reciprocating screw, and the reciprocating screw rotates. The nut seat moves back and forth along the axial direction of the reciprocating screw. When the nut seat moves, it drives the rotating tube to move up and down through the L-shaped plate. The rotating tube then drives the processing cylinder to move up and down. The up and down movement of the processing cylinder causes the soil particles inside to shake, thereby allowing the soil material to quickly pass through the filter plate structure. This allows the soil to be broken up and discharged quickly, avoiding the filter holes of the filter plate structure from being blocked, thereby improving the overall soil remediation efficiency.

[0019] 5. In this invention, when the reciprocating screw rotates, it can drive the third bevel gear to rotate through the guide bar, so that the third bevel gear meshes with the fourth bevel gear at the end of the rotating tube, thereby making the crushing component work. When the rotating tube rotates, it drives the rotating rod to rotate through the connecting plate, so that the rotating rod can stir and disperse the mine soil entering the processing cylinder. With only one drive source, the rotation of the reaction cylinder, the up and down shaking of the processing cylinder, and the crushing action of the crushing component on the soil in the processing cylinder can be realized. The operation is simple, the degree of automation is high, and the workload of the staff is effectively reduced.

[0020] 6. In this invention, the reciprocating screw can drive the slide rod to rotate when it rotates. The slide rod moves with the rotating rod that moves up and down synchronously with the processing cylinder under the connection of the movable block. The slide rod can freely rise and fall relative to the reciprocating screw. When the slide rod rotates, it is driven by the meshing of the sixth bevel gear and the fifth bevel gear on the rotating rod, so that the rotating rod rotates in the arc-shaped filter tube. When the rotating rod rotates, the protrusion squeezes and collides with the flexible filter screen, so that the large pieces of soil collected in the flexible filter screen are loosened and broken. This avoids the large pieces of soil that are subsequently moved by the feeding rod due to the limited collection space of the flexible filter screen, which cannot be collected and will re-block the filter plate structure at the bottom of the processing cylinder. This ensures that the anti-clogging components in the processing cylinder operate in an orderly manner.

[0021] In summary, these design points form a closed-loop process from crushing, anti-clogging, spraying to mixing. Compared with existing technologies, this significantly improves remediation efficiency, drastically reduces heavy metal residue, decreases equipment failure rate, and keeps material costs below 70% of traditional equipment. This solution is iteratively optimized based on actual mining area needs, aligns with the sustainable development path of environmental remediation, facilitates large-scale promotion, avoids undue complexity, and ensures efficient application in mining sites. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 For the present invention Figure 2 Enlarged structural diagram of section A in the middle; Figure 4This is a cross-sectional structural diagram of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram of section B in the middle; Figure 6 This is a schematic diagram of the support portion of the present invention; Figure 7 This is a schematic diagram of the structure of the reaction cylinder of the present invention; Figure 8 This is a schematic cross-sectional view of the processing cylinder of the present invention. Figure 1 ; Figure 9 This is a schematic cross-sectional view of the processing cylinder of the present invention. Figure 2 ; Figure 10 This is a schematic diagram of the external structure of the rotating ring of the present invention; Figure 11 This is a cross-sectional structural diagram of the rotating tube of the present invention.

[0023] In the diagram: 1. Base; 2. Support section; 201. Side ring; 202. Fixing ring; 2021. Feed inlet; 3. Processing cylinder; 301. Main cylinder; 302. Rotating ring; 4. Feed hopper; 5. Rotating tube; 501. Connecting plate; 502. Rotating rod; 5021. Driven bevel gear; 503. Crushing rod; 504. Fixing bevel gear; 505. Feeding rod; 6. Connecting rod; 601. Arc-shaped filter tube; 602. Flexible filter screen; 7. Telescopic outer shell; 701. Spray head; 8. Reaction cylinder; 801. 802. Notch; 803. Feeding plate; 804. First bevel gear; 9. Drive motor; 905. Drive gear; 906. Gear ring; 10. Support plate; 1007. Reciprocating screw; 1008. Nut seat; 1009. L-shaped plate; 10000. Second bevel gear; 1001. Third bevel gear; 1002. Fourth bevel gear; 1003. Guide groove; 111. Guide bar; 12. Rotating rod; 121. Protrusion; 122. Fifth bevel gear; 13. Slide rod; 131. Sixth bevel gear; 14. Movable block. Detailed Implementation

[0024] 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.

[0025] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, this embodiment proposes a heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines, including a base 1, a support 2, a processing cylinder 3, a feed hopper 4, and a crushing assembly; the support 2 is fixed on the base 1, and a reaction cylinder 8 is provided on the support 2; the processing cylinder 3 is located on the upper side of the support 2 and is connected to the reaction cylinder 8, the processing cylinder 3 includes a main cylinder 301 and a rotating ring 302 rotatably connected inside the main cylinder 301, the bottom of the main cylinder 301 is configured as a filter plate structure, and soil particles in the processing cylinder 3 pass through the filter plate structure into the reaction cylinder 8; the feed hopper 4 is fixed on the top of the processing cylinder 3 and is connected to it for soil feeding; the crushing assembly is located inside the processing cylinder 3 for crushing clumps of soil inside the processing cylinder 3; wherein, an anti-clogging assembly is also provided inside the processing cylinder 3, and the anti-clogging assembly is connected to the crushing assembly; Specifically, the pre-treated mine soil (after initial drying, crushing, and removal of stones) enters the treatment cylinder 3 through the feed hopper 4. The treatment cylinder 3 further crushes the treated soil to ensure the contact area between the soil particles and the spraying liquid, thereby improving the soil remediation effect. The soil particles after further crushing in the treatment cylinder 3 enter the reaction cylinder 8 through the filter plate structure at the bottom of the treatment cylinder 3. During the process of the soil particles entering the reaction cylinder 8 from the treatment cylinder 3, the spraying liquid sprays the soil particles. The sprayed soil enters the reaction cylinder 8 for reaction, and the heavy metals in the soil are transferred to the spraying liquid to form the scrubbing liquid. Subsequently, the soil and the scrubbing liquid are separated by a separator. The scrubbing liquid wastewater can then be treated using existing wastewater treatment equipment. This solves the problem that the existing in-situ remediation technology cannot fully react with the soil, resulting in poor soil remediation effect and a large amount of heavy metal residue in the soil.

[0028] like Figure 4 , Figure 7 , Figure 8 and Figure 9 As shown, in a preferred embodiment, based on the above method, the crushing assembly further includes a rotating tube 5 rotatably connected to both ends of the main cylinder 301, a connecting plate 501 fixedly connected between the two rotating tubes 5, a rotating rod 502 rotatably connected between the connecting plate 501 and the rotating ring 302, a plurality of crushing rods 503 equidistantly arranged on the rotating rod 502, a driven bevel gear 5021 fixedly disposed at the end of the rotating rod 502, and a fixed bevel gear 504 fixedly disposed on the outside of the main cylinder 301 and meshing with the driven bevel gear 5021. Specifically, the pre-treated mine soil enters the processing cylinder 3 through the feed hopper 4. The processing cylinder 3 further crushes the treated soil. When the crushing component is working, the rotating pipe 5 rotates. When the rotating pipe 5 rotates, it drives the rotating rod 502 to rotate through the connecting plate 501, so that the rotating rod 502 stirs and disperses the mine soil entering the processing cylinder 3. When the rotating rod 502 rotates, it drives the rotating ring 302 and the driven bevel gear 5021 to move. The driven bevel gear 5021 meshes with the fixed bevel gear 504 on the main cylinder 301 during the revolution of the rotating tube 5, thereby driving the rotating rod 502 to rotate relative to the rotating ring 302 and the connecting plate 501. The rotating rod 502 drives the crushing rod 503 arranged along its axial direction to further agitate and crush the clumps of soil in the treatment cylinder 3, so that the soil particles can fully react with the spray liquid and effectively remove heavy metals from the soil.

[0029] like Figure 4 , Figure 5 , Figure 8 , Figure 9 and Figure 10As shown, in a preferred embodiment, based on the above method, the anti-clogging component further includes an arc-shaped filter tube 601 fixedly connected to the main cylinder 301 via a connecting rod 6 and a flexible filter screen 602 fixed inside the arc-shaped filter tube 601. The arc-shaped filter tube 601 is coaxially arranged with the rotating tube 5 and is placed inside the rotating tube 5. A plurality of material-pulling rods 505 are arranged circumferentially on the connecting plate 501. Specifically, after the pretreated soil enters the treatment cylinder 3, some clumps of soil are intercepted by the filter plate structure at the bottom of the treatment cylinder 3 before being broken up by the crushing component. This prevents the small soil particles that fall later from passing through the filter plate structure in time, affecting the overall discharge speed of the soil material and thus reducing the overall efficiency of soil remediation. When the crushing assembly is working, the rotating tube 5 drives the material-pulling rod 505 to rotate through the connecting plate 501. This allows the material-pulling rod 505 to move larger lumps of material, preventing them from accumulating at the filter plate structure at the bottom of the processing cylinder 3. The lumps of soil moved by the material-pulling rod 505 continue to rotate with the rod 505. Subsequently, the material-pulling rod 505 tilts upward, and the lumps of soil automatically slide down the material-pulling rod 505 under the action of gravity. When the material-pulling rod 505 rotates to the opening at the top of the arc-shaped filter tube 601, the lumps of soil enter the flexible filter screen 602 in the arc-shaped filter tube 601 along the material-pulling rod 505. After the lumps of soil are loosened into small particles, they pass through the flexible filter screen 602 and the arc-shaped filter tube 601 and fall again at the filter plate structure of the processing cylinder 3. At this time, the small pieces of soil can pass through the filter plate structure and enter the reaction cylinder 8 after spraying to remove heavy metals.

[0030] like Figure 4 , Figure 5 , Figure 6 , Figure 8 , Figure 9 and Figure 10 As shown, in a preferred embodiment, based on the above method, the support part 2 further includes two side rings 201 and a fixed ring 202 that are fixedly connected to the base 1 by a support. The side rings 201 and the fixed ring 202 can support and limit the reaction cylinder 8. The top of the fixed ring 202 is provided with a feed inlet 2021. A telescopic shell 7 is fixed between the filter plate structure at the bottom of the treatment cylinder 3 and the feed inlet 2021. A spray head 701 is fixed inside the telescopic shell 7. The spray head 701 is connected to a spraying system through a pipeline. The spraying system adopts the prior art and sprays the remediation agent through the spray head 701 onto the soil particles falling from the treatment cylinder 3 through the pump body. Specifically, soil particles falling from the bottom of the treatment cylinder 3 fall into the reaction cylinder 8 through the telescopic outer shell 7. The telescopic outer shell 7 prevents soil particles from scattering on the outside. When the soil material passes through the telescopic outer shell 7, it is sprayed with a remediation agent by the spray head 701. After being sprayed with the remediation agent, the soil continues to fall and enters the reaction cylinder 8 through the feed inlet 2021 of the fixed ring 202. The spray liquid reacts with the heavy metals in the soil, causing the heavy metals to be transferred into the spray liquid.

[0031] like Figure 4 , Figure 5 , Figure 6 , Figure 8 , Figure 9 and Figure 10 As shown, in a preferred embodiment, based on the above method, the reaction cylinder 8 is further rotatably connected to the side ring 201 and the fixed ring 202, the base 1 is fixedly connected to the drive motor 9, the output shaft of the drive motor 9 is connected to the drive gear 901, and the outer side of the reaction cylinder 8 is fixedly provided with a gear ring 902 that meshes with the drive gear 901. Specifically, after the soil sprayed with remediation agent enters the reaction cylinder 8, the spray liquid in the upper soil will naturally seep down under the action of gravity, resulting in a higher content of remediation agent in the soil at the bottom of the reaction cylinder 8. By controlling the operation of the drive motor 9, the output shaft of the drive motor 9 drives the drive gear 901 to rotate. The drive gear 901 meshes with the gear ring 902 on the outside of the reaction cylinder 8, causing the gear ring 902 to drive the opposite side ring 201 and the fixed ring 202 of the reaction cylinder 8 to rotate. This avoids uneven distribution of the remediation agent due to the reaction cylinder 8 being stationary, thus ensuring the overall effect of soil remediation and preventing the problem of heavy metal residue in some parts of the soil in the reaction cylinder 8. It should be noted that, in order to further improve the mixing and reaction effect of soil and remediation agent in reaction cylinder 8, reaction cylinder 8 is provided with a notch 801 at fixed ring 202 that matches the feed inlet 2021. The notch 801 is provided so that even when reaction cylinder 8 is rotating, soil falling from treatment cylinder 3 can still enter reaction cylinder 8 through feed inlet 2021; a material-pushing plate 802 is fixed on the inner wall of reaction cylinder 8, and the material-pushing plate 802 is set in a spiral shape. Specifically, during the rotation of the reaction cylinder 8, the internal material can be further tumbled by the material-pushing plate 802, enhancing the mixing and reaction effect of the soil and the remediation agent. The material-pushing plate 802 is spiral-shaped, which allows the material in the reaction cylinder 8 to be conveyed in one direction. In specific operation, the drive motor 9 can be controlled to drive the reaction cylinder 8 to rotate forward first, and then the drive motor 9 can be controlled to drive the reaction cylinder 8 to rotate in reverse, so that the material is tumbled back and forth in the reaction cylinder 8, improving the removal effect of heavy metals in the soil. The drive motor 9 should be paused after rotating forward or in reverse before driving the reaction cylinder 8 to rotate again to avoid damaging the motor. When it is necessary to discharge the material in the reaction cylinder 8, the cap at the end of the reaction cylinder 8 can be opened, and the spiral material-pushing plate 802 can push the material towards the opening.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 11 As shown, in a preferred embodiment, based on the above method, a support plate 10 is further fixed on the side ring 201, a reciprocating screw 1001 is rotatably connected to the support plate 10, a nut seat 1002 is threadedly connected to the reciprocating screw 1001, an L-shaped plate 1003 is fixed on the nut seat 1002 and is rotatably connected to the reciprocating screw 1001 and the rotating tube 5, a second bevel gear 1004 is fixed at the bottom of the reciprocating screw 1001, and a first bevel gear 803 that meshes with the second bevel gear 1004 is provided on the outside of the reaction cylinder 8; Specifically, when the reaction cylinder 8 rotates, the first bevel gear 803 on the reaction cylinder 8 meshes with the second bevel gear 1004 on the reciprocating screw 1001, causing the reciprocating screw 1001 to rotate. The nut seat 1002 moves back and forth along the axial direction of the reciprocating screw 1001. When the nut seat 1002 moves, it drives the rotating tube 5 to move up and down through the L-shaped plate 1003. The rotating tube 5 then drives the processing cylinder 3 to move up and down. During this period, the telescopic outer shell 7 can freely extend and retract. The up and down movement of the processing cylinder 3 causes the soil particles inside to shake, thereby allowing the soil material to quickly pass through the filter plate structure. This allows the soil to be broken up and discharged quickly, preventing the filter holes of the filter plate structure from being blocked, thus improving the overall soil remediation efficiency.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 11 As shown, in a preferred embodiment, based on the above method, a third bevel gear 1005 is rotatably connected to the L-shaped plate 1003 and slidably connected to the smooth section of the reciprocating screw 1001. A fourth bevel gear 1006 is provided on the rotating tube 5 and meshes with the third bevel gear 1005. A guide groove 11 is provided on the smooth section of the reciprocating screw 1001. A guide strip 111 is fixed on the inner side wall of the third bevel gear 1005 and slidably connected to the guide groove 11. Specifically, when the reciprocating screw 1001 rotates, it can drive the third bevel gear 1005 to rotate through the guide bar 111, so that the third bevel gear 1005 meshes with the fourth bevel gear 1006 at the end of the rotating tube 5. The third bevel gear 1005 can move up and down with the L-shaped plate 1003 while rotating with the reciprocating screw 1001, so that the crushing component works. With only one drive source, the reaction cylinder 8 can be driven to rotate, the processing cylinder 3 can be shaken up and down, and the crushing component can crush the soil in the processing cylinder 3. The operation is simple, the degree of automation is high, and the workload of the staff is effectively reduced.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 11 As shown, in a preferred embodiment, based on the above method, a rotating rod 12 is rotatably connected inside the arc-shaped filter tube 601. A protrusion 121 that abuts against the flexible filter screen 602 is fixed on the rotating rod 12. A fifth bevel gear 122 is fixed at the end of the rotating rod 12. A slide rod 13 is slidably provided on the top keyway of the reciprocating screw 1001. The slide rod 13 slides vertically against the reciprocating screw 1001. A movable block 14 is provided between the rotating rod 12 and the slide rod 13. A sixth bevel gear 131 that meshes with the fifth bevel gear 122 is provided on the slide rod 13. Specifically, when the reciprocating screw 1001 rotates, it can simultaneously drive the slide rod 13 to rotate. The slide rod 13 moves with the rotating rod 12, which moves up and down synchronously with the processing cylinder 3, under the connection of the movable block 14. The slide rod 13 moves freely up and down relative to the reciprocating screw 1001. When the slide rod 13 rotates, it is driven by the engagement of the sixth bevel gear 131 with the fifth bevel gear 122 on the rotating rod 12, so that the rotating rod 12 rotates inside the arc-shaped filter tube 601. When the rotating rod 12 rotates, it uses the protrusion 121 to squeeze and collide with the flexible filter screen 602, so that the large pieces of soil collected in the flexible filter screen 602 are loosened and broken. This avoids the limited collection space of the flexible filter screen 602, which would prevent other large pieces of soil moved by the material pusher 505 from being unable to be collected and re-clogging the filter plate structure at the bottom of the processing cylinder 3. This ensures that the anti-clogging components in the processing cylinder 3 operate in an orderly manner. The thickness of the flexible filter screen 602 is 2mm.

[0035] Working principle: The pre-treated mine soil (after preliminary drying, crushing, and removal of stones) enters the processing cylinder 3 through the feed hopper 4. Then, the drive motor 9 is controlled to run, so that the output shaft of the drive motor 9 drives the drive gear 901 to rotate. The drive gear 901 meshes with the gear ring 902 on the outside of the reaction cylinder 8, so that the gear ring 902 drives the opposite side ring 201 and the fixed ring 202 of the reaction cylinder 8 to rotate, thereby avoiding uneven distribution of the remediation agent inside the soil due to the reaction cylinder 8 being stationary. When the reaction cylinder 8 rotates, the first bevel gear 803 on the reaction cylinder 8 meshes with the second bevel gear 1004 on the reciprocating screw 1001. The reciprocating screw 1001 rotates, and the nut seat 1002 moves back and forth along the axial direction of the reciprocating screw 1001. When the nut seat 1002 moves, it drives the rotating tube 5 to move up and down through the L-shaped plate 1003. The rotating tube 5 then drives the processing cylinder 3 to move up and down. The up and down movement of the processing cylinder 3 causes the soil particles inside to shake, so that the soil material can quickly pass through the filter plate structure, and the soil is crushed and discharged quickly at the same time, so as to avoid the filter holes of the filter plate structure being blocked. When the reciprocating screw 1001 rotates, it can drive the third bevel gear 1005 to rotate through the guide bar 111, so that the third bevel gear 1005 meshes with the fourth bevel gear 1006 at the end of the rotating tube 5. When the rotating tube 5 rotates, it drives the rotating rod 502 to rotate through the connecting plate 501, so that the rotating rod 502 can stir and disperse the mine soil entering the processing cylinder 3. Furthermore, when the rotating rod 502 rotates, it drives the rotating ring 302 and the driven bevel gear 5021 to move. During the revolution of the rotating tube 5, the driven bevel gear 5021 meshes with the fixed bevel gear 504 on the main cylinder 301, thereby causing the driven bevel gear 5021 to drive the rotating rod 502 to rotate relative to the rotating ring 302 and the connecting plate 501. The rotating rod 502 drives the crushing rod 503 arranged along its axial direction to further agitate and break up the clumps of soil in the treatment cylinder 3, so as to facilitate the full reaction of subsequent soil particles with the spray liquid. After the pre-treated soil enters the treatment cylinder 3, some clumps of soil that are not broken up by the crushing component will be intercepted by the filter plate structure at the bottom of the treatment cylinder 3. The rotating pipe 5 drives the material-pulling rod 505 to rotate through the connecting plate 501, so that the material-pulling rod 505 can move the larger clumps of material and prevent them from accumulating at the filter plate structure at the bottom of the treatment cylinder 3. The clumps of soil moved by the material-pulling rod 505 continue to rotate with the material-pulling rod 505. Then the material-pulling rod 505 tilts upward, and the clumps of soil automatically slide down the material-pulling rod 505 under the action of gravity. When the material-pulling rod 505 rotates to the opening at the top of the arc-shaped filter tube 601, the clumps of soil enter the flexible filter screen 602 in the arc-shaped filter tube 601 along the material-pulling rod 505. When the reciprocating screw 1001 rotates, it can simultaneously drive the slide rod 13 to rotate. Under the connection of the movable block 14, the slide rod 13 moves with the rotating rod 12, which moves up and down synchronously with the processing cylinder 3. The slide rod 13 moves freely up and down relative to the reciprocating screw 1001. When the slide rod 13 rotates, it is driven by the meshing of the fifth bevel gear 122 on the rotating rod 12 through the sixth bevel gear 131, so that the rotating rod 12 rotates in the arc-shaped filter tube 601. When the rotating rod 12 rotates, it uses the protrusion 121 to squeeze and collide with the flexible filter screen 602, so that the large pieces of soil collected in the flexible filter screen 602 are loosened and broken. This avoids the large pieces of soil that are subsequently moved by the material-pulling rod 505 due to the limited collection space of the flexible filter screen 602, which would prevent them from being collected and re-clogging the filter plate structure at the bottom of the processing cylinder 3. After the clumps of soil are loosened into small particles, they pass through the flexible filter screen 602 and the arc-shaped filter tube 601 and fall down again at the filter plate structure of the processing cylinder 3. Soil particles falling from the bottom of the treatment cylinder 3 fall into the reaction cylinder 8 through the telescopic outer shell 7. The telescopic outer shell 7 can prevent soil particles from scattering on the outside. When the soil material passes through the telescopic outer shell 7, it is sprayed with remediation agent by the spray head 701. After being sprayed with remediation agent, the soil continues to fall and enters the reaction cylinder 8 through the feed port 2021 of the fixed ring 202. The spray liquid reacts with the heavy metals in the soil, causing the heavy metals to be transferred into the spray liquid. Subsequently, the staff used a separator to separate the soil and the scrubbing liquid. The scrubbing liquid wastewater can then be treated using existing wastewater treatment equipment. This solves the problem that in existing in-situ remediation technologies, the scrubbing liquid cannot fully react with the soil, resulting in poor soil remediation effects and a large amount of heavy metal residue in the soil.

[0036] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines, comprising a base (1), characterized in that, Also includes: Support (2), the support (2) is fixed on the base (1), and a reaction cylinder (8) is provided on the support (2). Processing cylinder (3), which is disposed on the upper side of the support (2) and connected to the reaction cylinder (8); Feed hopper (4), which is fixed on the top of the processing cylinder (3) and is used for soil feeding; And a crushing assembly, which is disposed inside the processing cylinder (3) for crushing clumps of soil inside the processing cylinder (3); The processing cylinder (3) is also equipped with an anti-clogging component, which is connected to the crushing component.

2. The heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines according to claim 1, characterized in that, The treatment cylinder (3) includes a main cylinder (301) and a rotating ring (302) rotatably connected inside the main cylinder (301). The bottom of the main cylinder (301) is configured as a filter plate structure, and the soil particles inside the treatment cylinder (3) pass through the filter plate structure and enter the reaction cylinder (8).

3. The heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines according to claim 2, characterized in that, The crushing assembly includes rotating tubes (5) rotatably connected to both ends of the main cylinder (301), a connecting plate (501) fixedly connected between the two rotating tubes (5), a rotating rod (502) rotatably connected between the connecting plate (501) and the rotating ring (302), a plurality of crushing rods (503) equidistantly arranged on the rotating rod (502), a driven bevel gear (5021) fixedly installed at the end of the rotating rod (502), and a fixed bevel gear (504) fixedly installed on the outside of the main cylinder (301) and meshing with the driven bevel gear (5021).

4. The heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines according to claim 3, characterized in that, The anti-clogging component includes an arc-shaped filter tube (601) fixedly connected to the main cylinder (301) via a connecting rod (6) and a flexible filter screen (602) fixed inside the arc-shaped filter tube (601). The arc-shaped filter tube (601) is coaxially arranged with the rotating tube (5) and the arc-shaped filter tube (601) is placed inside the rotating tube (5). A plurality of material feeding rods (505) are arranged circumferentially on the connecting plate (501).

5. The heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines according to claim 4, characterized in that, The support part (2) includes two side rings (201) and a fixed ring (202) that are fixedly connected to the base (1) by a support. The fixed ring (202) has a feed inlet (2021) at the top. A telescopic shell (7) is fixed between the filter plate structure at the bottom of the processing cylinder (3) and the feed inlet (2021). A spray head (701) is fixed inside the telescopic shell (7). The spray head (701) is connected to a spraying system through a pipeline.

6. The heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines according to claim 5, characterized in that, The reaction cylinder (8) is rotatably connected to the side ring (201) and the fixed ring (202). The base (1) is fixed with the drive motor (9). The output shaft of the drive motor (9) is connected with the drive gear (901). The outer side of the reaction cylinder (8) is fixed with a gear ring (902) that meshes with the drive gear (901).

7. The heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines according to claim 6, characterized in that, The reaction cylinder (8) has a notch (801) at the fixed ring (202) that matches the feed inlet (2021). The inner wall of the reaction cylinder (8) is fixed with a material feeding plate (802), which is spiral in shape.

8. The heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines according to claim 7, characterized in that, A support plate (10) is fixed on the side ring (201), and a reciprocating screw (1001) is rotatably connected to the support plate (10). A nut seat (1002) is threaded onto the reciprocating screw (1001). An L-shaped plate (1003) is fixed on the nut seat (1002) and is rotatably connected to the reciprocating screw (1001) and the rotating tube (5). A second bevel gear (1004) is fixed at the bottom of the reciprocating screw (1001), and a first bevel gear (803) that meshes with the second bevel gear (1004) is provided on the outside of the reaction cylinder (8).

9. A heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines according to claim 8, characterized in that, The L-shaped plate (1003) is rotatably connected to a third bevel gear (1005) that is slidably connected to the smooth section of the reciprocating screw (1001). The rotating tube (5) is provided with a fourth bevel gear (1006) that meshes with the third bevel gear (1005). The smooth section of the reciprocating screw (1001) is provided with a guide groove (11). The inner sidewall of the third bevel gear (1005) is fixed with a guide strip (111) that is slidably connected to the guide groove (11).

10. A heavy metal adsorption device for integrated remediation of soil and water pollution in abandoned open-pit mines according to claim 9, characterized in that, The arc-shaped filter tube (601) is rotatably connected to a rotating rod (12). A protrusion (121) is fixed on the rotating rod (12) to move against the flexible filter screen (602). A fifth bevel gear (122) is fixed at the end of the rotating rod (12). A slide rod (13) is slidably provided on the top keyway of the reciprocating screw (1001). A movable block (14) is provided between the rotating rod (12) and the slide rod (13). A sixth bevel gear (131) is provided on the slide rod (13) to mesh with the fifth bevel gear (122).

Images