Remediation liquid injection equipment for farmland heavy metal soil pollution treatment

Abstract

The invention relates to the technical field of soil pollution treatment, and discloses remediation liquid injection equipment for farmland heavy metal soil pollution treatment, which comprises a remediation machine, a counterweight seat, a stand column, a movable module, a remediation liquid box, a liquid conveying pipe and an injection pipe, the jacking cleaning and spraying module comprises a trigger pipe sleeve and a pair of connecting springs, the trigger pipe sleeve is fixedly connected with the connecting springs on the two sides, and the trigger pipe sleeve moves upwards along with the downward grounding supporting action of the balance weight base to conduct contact treatment on the pipe wall of the injection pipe; the vortex impact module comprises a porous partition plate and a spiral blade, the spiral blade is rotationally connected to the middle of the porous partition plate, downward conveying of the repairing liquid is synchronized to form vortex rotating force, and the repairing liquid is stirred; the synchronous remediation machine is ready in positioning, metal salt crystals adhered to the outer wall of the injection pipe are synchronously treated to avoid transfer and diffusion of a pollution source, abrasion and adhesion corrosion of salt crystal particles to the outer wall of the injection pipe are avoided, the service life of the injection pipe is prolonged, and the synchronous remediation machine is mainly used for remediation of heavy metal contaminated soil.

Description

Technical Field

[0001] The present invention relates to the technical field of soil pollution control, and more particularly to a repair liquid injection device for controlling farmland heavy metal soil pollution. Background Art

[0002] Heavy metal pollution in soil refers to the phenomenon of excessive concentration of trace metal elements in the soil exceeding the background value and excessive deposition due to human activities. Soil remediation refers to the use of physical, chemical and biological methods to degrade and transform heavy metal pollutants in farmland soil to reduce their concentration to an acceptable level, or to convert toxic and harmful pollutants into harmless substances.

[0003] In farmland contaminated by heavy metals, heavy metals tend to accumulate on the soil surface to form metal salt crystals. Heavy metal salt crystals are relatively hard, and the injection tube will continuously rub against the crystal particles during the insertion into the soil. The tiny particles will be attached to the cracks and grooves of the tube wall through mechanical interlocking or adhere to the metal tube wall through electrostatic adsorption. When the injection tube is pulled out of the repair area, the crystal particles attached to the outer wall will be carried away from the original contaminated area along with the tube body, becoming a mobile pollution source for the diffusion of heavy metals. Summary of the Invention

[0004] The present invention provides a remediation liquid injection device for treating heavy metal soil pollution in farmland, which solves the technical problem in the related art that metal salt crystals formed by heavy metals on the soil surface are accompanied by the movement and diffusion of pollution by the injection pipe during the injection of injection liquid into the soil for remediation.

[0005] The present invention provides a repair liquid injection device for treating farmland heavy metal soil pollution, comprising:

[0006] The repair machine, counterweight base, column, movable module, repair liquid tank, infusion pipe and injection pipe are used to carry out liquid injection repair of heavy metal contaminated farmland soil;

[0007] The lifting and cleaning spraying module includes a trigger pipe sleeve and a pair of connecting springs. The trigger pipe sleeve is fixedly connected to the connecting springs on both sides. As the counterweight seat is lowered and supported, it moves upward to contact the wall of the injection pipe.

[0008] The eddy current impact module includes a porous partition and a spiral blade. The spiral blade is rotatably connected to the middle of the porous partition, synchronously transporting the repair fluid downward to form a eddy current rotation force, stirring the repair fluid, and making it more evenly dispersed after output injection;

[0009] The surface treatment module includes teeth and a transmission gear, which are meshed and connected with each other, synchronously triggering the action of the pipe sleeve to form an expansion transmission, and further scraping and treating the metal salt crystals attached to the soil surface.

[0010] As a further optimization solution of the present invention, the jacking and cleaning spraying module further includes:

[0011] The conical cover is fixedly connected to the top outer wall of the trigger tube sleeve. The outer wall of the trigger tube sleeve is located below the conical cover and is fixedly connected to a collection dish. Grooves are provided on both sides of the bottom of the counterweight seat, and the shapes of the grooves on both sides are consistent with the bottom end of the trigger tube sleeve.

[0012] As a further optimization scheme of the present invention, a trigger ball rod is fixedly connected to the middle part of the side of the collecting dish away from the counterweight seat, a treatment liquid tank is fixedly connected to the outer wall of the movable module, a piston plate is slidably connected to the interior of the treatment liquid tank, and a connecting push rod is fixedly connected to the bottom of the piston plate, and the bottom end of the connecting push rod passes through and extends to the bottom of the treatment liquid tank.

[0013] As a further optimization scheme of the present invention, a compensation spring is provided on the outer wall of the connecting push rod, one end of the compensation spring is fixedly connected to the connecting push rod, and the other end of the compensation spring is fixedly connected to the treatment liquid tank. Hoses are provided on both sides of the interior of the treatment liquid tank above the piston plate, and the top ends of the hoses on both sides are fixedly connected with hemispherical interfaces, and adjustment plates are rotatably connected on both sides of the bottom of the treatment liquid tank.

[0014] As a further optimization scheme of the present invention, the outer sides of the adjustment plates on both sides are fixedly connected with spray pipes, the bottom ends of the hoses on both sides are fixedly connected to the top ends of the spray pipes on both sides, and the middle parts of both sides of the connecting push rods are rotatably connected with support plates, and the ends away from the support plates on both sides are hingedly connected to the adjustment plates on both sides.

[0015] As a further optimization solution of the present invention, the eddy current impact module further includes:

[0016] A plurality of steel balls are distributed and filled in a cavity formed by the porous partition plate and the lower inner wall of the injection pipe. A plurality of liquid outlets are evenly opened around the cavity below the outer wall of the injection pipe.

[0017] As a further optimization solution of the present invention, the surface treatment module further includes:

[0018] The shaft rod is fixedly connected to the transmission gear. A rectangular groove is provided at the bottom of the counterweight seat. The shaft rod and the transmission gear are both rotatably connected inside the rectangular groove. Both ends of the shaft rod pass through the counterweight seat and are fixedly connected with screws.

[0019] As a further optimization scheme of the present invention, the outer walls of the screws on both sides are threadedly connected to the scraper seats, the middle parts of the scraper seats on both sides are fixedly connected to T-shaped blocks, the middle parts of both sides of the counterweight seat are provided with rectangular sleeve holes, and the T-shaped blocks on both sides are respectively slidably connected to the inner walls of the rectangular sleeve holes on both sides.

[0020] As a further optimization scheme of the present invention, the counterweight seat is slidably connected to the rear side of the repair machine through a hydraulic drive module, the counterweight seat is fixedly connected to the columns on both sides, the outer walls of the columns on both sides are slidably connected to the movable module through a hydraulic mechanism, and the repair fluid tank is fixedly connected to the top of the repair machine.

[0021] As a further optimization scheme of the present invention, the top ends of the infusion tubes on both sides are fixedly passed through the interior of the repair liquid tank, the outer walls of the infusion tubes on both sides are fixedly connected to water pumps, the bottom ends of the infusion tubes on both sides pass through the movable module and extend to the interior of the injection tube, and the bottom of the repair machine is rotatably connected to a crushing roller.

[0022] The beneficial effects of the present invention are:

[0023] 1. The present invention relates to a repair liquid injection device for the treatment of heavy metal soil pollution in farmland. The synchronous repair machine is positioned and ready. The counterweight seat contacts the ground, causing the trigger tube sleeve to move upward through the outer wall of the injection tube. The inner wall of the trigger tube sleeve contacts the outer wall of the injection tube to process the metal salt crystals and other particulate matter adhered to the outer wall and collect them downward along the slope of the conical cover. This can avoid the spread of the pollution source during the subsequent repair of the contaminated area, and the diffusion output of the chelating agent can be achieved in this upward movement path. The salt crystals on the soil surface of the repair area are sprayed and neutralized, reducing the wear and adhesion of salt crystal particles to the outer wall of the injection tube.

[0024] 2. The remediation liquid injection equipment for the treatment of heavy metal soil pollution in farmland described in the present invention is accompanied by a trigger pipe sleeve, which converts the vertical transmission into a horizontal rotational force, further driving the scraper seats on both sides to move outward, and crushing the metal salt crystals on the soil surface. The spraying of the chelating agent can immediately contact the particles when they are just broken and have not yet aggregated for the second time, and stabilize the metal ions in the solution through the chelating reaction. The sprayed chelating agent can also play a neutralizing role at the same time, adjusting the pH of the soil surface to the optimal range of the chelating reaction, and avoiding the reduction of the agent effect due to local pH imbalance.

[0025] 3. The repair liquid injection equipment for the treatment of heavy metal soil pollution in farmland described in the present invention arranges steel balls at the output end of the injection pipe and cooperates with spiral blade transmission. When the repair liquid is transported to the inside of the injection pipe, the transport kinetic energy of the repair liquid acts on the spiral blade to rotate it. In this process, the repair liquid to be injected is stirred and dispersed to avoid the deposition of some components in the repair liquid. At the same time, the steel balls roll and impact inside the cavity under the action of the transport kinetic energy, breaking the agglomeration of local precipitation and ensuring that the concentration of the agent in each area is consistent after injection into the soil.

[0026] 4. In the repair liquid injection equipment for the treatment of heavy metal soil pollution in farmland described in the present invention, the steel balls roll and impact in the cavity, ensuring that the active ingredients of the repair liquid are in an active state during the transportation process. At the same time, the balls collide and shake off the stubborn attachment layer on the inner wall of the liquid outlet, such as dried-up repair agent residues and crystalline particles. This is equivalent to a built-in dynamic pipe cleaner, ensuring that the repair liquid can be injected stably and smoothly during subsequent farmland treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a repair liquid injection device for treating heavy metal soil pollution in farmland proposed by the present invention.

[0028] Figure 2 This is a schematic side view of the overall structure of a repair liquid injection device for treating heavy metal soil pollution in farmland proposed by the present invention.

[0029] Figure 3 This is a rear view schematic diagram of the overall structure of a repair liquid injection device for treating heavy metal soil pollution in farmland proposed by the present invention.

[0030] Figure 4 for Figure 3 Enlarged schematic diagram of point A in the middle.

[0031] Figure 5 This is a bottom-up schematic diagram of the overall structure of a repair liquid injection device for treating heavy metal soil pollution in farmland proposed by the present invention.

[0032] Figure 6 This is a partial structural schematic diagram of the jacking and cleaning spraying module and the eddy current impact module in the repair liquid injection equipment for the treatment of heavy metal soil pollution in farmland proposed by the present invention.

[0033] Figure 7 This is a partial structural schematic diagram of the jacking and cleaning spraying module in the repair liquid injection equipment for the treatment of heavy metal soil pollution in farmland proposed by the present invention.

[0034] Figure 8 This is a schematic top view of the injection structure of a repair liquid injection device for treating heavy metal soil pollution in farmland proposed by the present invention.

[0035] Figure 9 This is a bottom-up schematic diagram of the injection structure of a repair liquid injection device for treating heavy metal soil pollution in farmland proposed by the present invention.

[0036] Figure 10 for Figure 9 Enlarged schematic diagram of point B in the middle.

[0037] Figure 11This is a half-section schematic diagram of an injection pipe of a repair liquid injection device for treating heavy metal soil pollution in farmland proposed by the present invention.

[0038] Figure 12 This is a partial structural schematic diagram of a surface treatment module of a remediation liquid injection device for treating heavy metal soil pollution in farmland proposed by the present invention.

[0039] In the picture:

[0040] 1. Repair machine; 2. Counterweight seat; 3. Column; 4. Movable module; 5. Repair fluid tank; 6. Infusion tube; 7. Injection tube;

[0041] Lifting and spraying module 8 includes:

[0042] 801. Trigger tube sleeve; 802. Connecting spring; 803. Groove; 804. Conical cover; 805. Collection dish; 806. Trigger ball rod; 807. Treatment liquid tank; 808. Connecting push rod; 809. Compensation spring; 810. Piston plate; 811. Hose; 812. Hemispherical interface; 813. Support plate; 814. Adjustment plate; 815. Spray pipe.

[0043] The eddy current impact module 9 includes:

[0044] 901, porous partition; 902, spiral blade; 903, steel ball; 904, liquid outlet.

[0045] The surface processing module 10 includes:

[0046] 1001, teeth; 1002, rectangular groove; 1003, shaft; 1004, transmission gear; 1005, screw; 1006, scraper seat; 1007, T-shaped block; 1008, rectangular sleeve hole.

[0047] 11. Water pump; 12. Crushing roller. DETAILED DESCRIPTION

[0048] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. Furthermore, features described for some examples may be combined in other examples.

[0049] like Figures 1 to 12 As shown, a remediation liquid injection device for treating farmland heavy metal soil pollution according to an embodiment of the present invention comprises:

[0050] The repair machine 1, counterweight base 2, column 3, movable module 4, repair liquid tank 5, infusion pipe 6 and injection pipe 7 are used to inject liquid to repair heavy metal contaminated farmland soil. The bottom of the injection pipe 7 is detachably provided with a conical drill bit to help the injection pipe 7 stably penetrate into the farmland soil.

[0051] The lifting and cleaning spraying module 8 includes a trigger sleeve 801 and a pair of connecting springs 802. The trigger sleeve 801 is fixedly connected to the connecting springs 802 on both sides. As the counterweight seat 2 is lowered and grounded, it moves upward to contact the wall of the injection pipe 7. The bottom end of the trigger sleeve 801 is then received in the interior of the counterweight seat 2, and the bottoms of the two are aligned and parallel to ensure stable support conditions.

[0052] The eddy current impact module 9 includes a porous partition 901 and a spiral blade 902. The spiral blade 902 is rotatably connected to the middle of the porous partition 901, and synchronously transports the repair liquid downward to form a eddy current rotation force, stirring the repair liquid, and making it more evenly dispersed after output injection;

[0053] The surface treatment module 10 includes teeth 1001 and a transmission gear 1004. The teeth 1001 and the transmission gear 1004 are meshed and connected. The teeth 1001 are fixedly connected to the trigger sleeve 801. The movement of the trigger sleeve 801 is synchronized to form an expansion transmission to further scrape and treat the metal salt crystals attached to the soil surface.

[0054] The counterweight seat 2 is slidably connected to the rear side of the repair machine 1 through a hydraulic drive module, and the counterweight seat 2 is fixedly connected to the two side columns 3. The outer walls of the two side columns 3 are slidably connected to the movable module 4 through a hydraulic mechanism. The repair liquid tank 5 is fixedly connected to the top of the repair machine 1, and the top ends of the two side infusion pipes 6 are fixedly passed through the interior of the repair liquid tank 5. The outer walls of the two side infusion pipes 6 are fixedly connected to the water pump 11, and the bottom ends of the two side infusion pipes 6 pass through the movable module 4 and extend to the interior of the injection pipe 7. The bottom of the repair machine 1 is rotatably connected to the crushing roller 12, and the crushing roller 12 follows the movement of the repair machine 1 to roll and pre-treat the farmland soil caking before the repair treatment and injection.

[0055] like Figure 1 - Figure 3 、 Figure 5 - Figure 6 、 Figure 8 and Figure 10 As shown:

[0056] The lifting and cleaning spraying module 8 also includes:

[0057] A conical cover 804 is fixedly connected to the outer wall of the top end of the trigger sleeve 801. The inner diameter of the top end of the conical cover 804 corresponds to the outer diameter of the injection tube 7. A collection dish 805 is fixedly connected to the outer wall of the trigger sleeve 801 below the conical cover 804. The inner wall of the collection dish 805 corresponds to the slope of the inclined surface of the conical cover 804. Grooves 803 are formed on both sides of the bottom of the counterweight seat 2. The shape of the grooves 803 on both sides matches the bottom end of the trigger sleeve 801. After the trigger sleeve 801 moves upward, its bottom sides are received in the inner walls of the grooves 803 on both sides.

[0058] It should be noted that the conical cover 804 moves upward synchronously with the trigger sleeve 801 to contact the outer wall of the injection tube 7. As the contact process proceeds, the metal salt crystals and other particulate matter adhered to the outer wall of the injection tube 7 during the previous operation can be scraped and processed, and under the action of gravity, they slide along the outer wall of the conical cover 804 to the inside of the collection dish 805, ensuring that there are no heavy metal pollutants in other areas on the outer wall of the injection tube 7 during this repair process, avoiding the diffusion and transfer of pollutants. The collected metal salt crystals are also convenient for the staff to collect accordingly, and subsequent testing, analysis and comparison will be carried out to understand the recovery of the farmland soil before and after the injection of the repair fluid.

[0059] like Figure 5 - Figure 8 As shown:

[0060] The collecting dish 805 is fixedly connected to a trigger ball rod 806 in the middle of the side away from the counterweight seat 2, and a treatment liquid tank 807 is fixedly connected to the outer wall of the movable module 4, which stores the chelating agent solution inside. The interior of the treatment liquid tank 807 is slidably connected to a piston plate 810, and the material of the piston plate 810 is rubber. The bottom of the piston plate 810 is fixedly connected to a connecting push rod 808, and the connecting push rod 808 and the trigger ball rod 806 are located in the same straight line in the vertical direction. The connecting push rod 808, the piston plate 810 and the treatment liquid tank 807 can form an output action similar to a needle tube under the triggering force. The bottom end of the connecting push rod 808 passes through and extends to the bottom of the treatment liquid tank 807. The outer wall of the connecting push rod 808 is provided with a compensation spring 809, one end of the compensation spring 809 is fixedly connected to the connecting push rod 808, and the other end of the compensation spring 809 is fixedly connected to the treatment liquid tank 807. Both sides of the interior of the treatment liquid tank 807 are above the piston plate 810 and are provided with hoses 811 The top ends of the hoses 811 on both sides are fixedly connected with hemispherical interfaces 812. The setting of the hemispherical interfaces 812 can dock the squeezed chelating agent solution in a larger range, and can also form a movable connection between the top end of the hose 811 and the treatment liquid tank 807. The position of the hemispherical interface 812 also serves as a mark. When the chelating agent is injected into the treatment liquid tank 807, the capacity should be controlled below the hemispherical interface 812. The bottom of the treatment liquid tank 807 is rotatably connected with adjustment plates 814 on both sides. The outer sides of the adjustment plates 814 on both sides are fixedly connected with spray pipes 815. The bottom ends of the hoses 811 on both sides are respectively fixedly connected to the top ends of the spray pipes 815 on both sides. The middle parts of both sides of the connecting push rod 808 are rotatably connected with support plates 813. The ends away from the support plates 813 on both sides are hingedly connected to the adjustment plates 814 on both sides. The adjustment plates 814 on both sides rotate and expand to the opposite sides under the transmission action of the support plates 813 on both sides, forming a fan-shaped spray range for the soil in the repair area.

[0061] It should be noted that, as the trigger sleeve 801 moves upward and the injection tube 7 moves downward, the trigger ball rod 806 can generate an extrusion thrust on the connecting push rod 808. The compensation spring 809 deforms in this process and stores a certain potential energy. When the subsequent extrusion thrust disappears, the connecting push rod 808 and the piston plate 810 can be reset. When the connecting push rod 808 moves upward, it drives the adjustment plates 814 hinged on both sides to rotate outward and unfold through the support plates 813 on both sides, which is the same as the transmission principle of the umbrella ribs. At the same time, the piston plate 810 moves upward under the action of the connecting push rod 808 to push and output the chelating agent inside the treatment liquid tank 807, and then it is transported to the spray pipes 815 on both sides along the hoses 811 on both sides and then sprayed to neutralize the contaminated soil surface below by metal salt crystallization.

[0062] like Figure 11 As shown:

[0063] The eddy current impact module 9 also includes:

[0064] A plurality of steel balls 903 are distributed and filled in the cavity formed by the porous partition 901 and the inner wall below the injection tube 7. A plurality of liquid outlets 904 are evenly distributed around the cavity below the outer wall of the injection tube 7. The size of the steel balls 903 is larger than the diameter of the liquid outlets 904.

[0065] It should be noted that when the repair liquid is transported and flows into the injection pipe 7, the output kinetic energy acts on the spiral blade 902 to rotate it on the top of the porous partition 901, dispersing and impacting the repair liquid to be output and injected into the underground soil, avoiding the accumulation and precipitation of active substances in the repair liquid. At the same time, it can also drive each steel ball 903 to roll and impact the inside of the cavity, and collide and impact the area of ​​the liquid outlet 904, breaking the agglomeration of local precipitation, ensuring that the concentration of the agent in each area is consistent after injection into the soil, and ensuring that the active ingredients of the repair liquid are in an active state during the transportation process. At the same time, the stubborn adhesion layer on the inner wall of the liquid outlet 904 is shaken off by collision, ensuring the smooth flow of the liquid outlet 904.

[0066] like Figure 4 、 Figure 6 、 Figure 10 and Figure 12 As shown:

[0067] The surface processing module 10 further includes:

[0068] The shaft 1003 is fixedly connected to the transmission gear 1004, and a rectangular groove 1002 is provided at the bottom of the counterweight seat 2. The shaft 1003 and the transmission gear 1004 are rotatably connected to the inside of the rectangular groove 1002. Both ends of the shaft 1003 pass through the counterweight seat 2 and are fixedly connected to screws 1005. The outer walls of the screws 1005 on both sides are threadedly connected to scraper seats 1006. The scraper seats 1006 on both sides are flush with the bottom of the counterweight seat 2. The middle parts of the scraper seats 1006 on both sides are fixedly connected to T-shaped blocks 1007. Rectangular sleeve holes 1008 are provided in the middle parts of both sides of the counterweight seat 2. The T-shaped blocks 1007 on both sides are slidably connected to the inner walls of the rectangular sleeve holes 1008 on both sides respectively.

[0069] It should be noted that, in the process of the trigger tube sleeve 801 transmitting upward, the teeth 1001 are driven to move synchronously, and then the transmission gear 1004 meshing with the teeth 1001 can be driven to rotate inside the rectangular groove 1002, forming a horizontal rotational force, which is further acted on the screws 1005 on both sides through the shaft 1003. The scraper seats 1006 on both sides can form a limiting guide through the T-shaped block 1007 and the rectangular sleeve hole 1008, and the above-mentioned chelating agent spraying is synchronized to further crush the metal salt crystals on the soil surface. After the chelating agent falls, it can be more fully contacted and neutralized with the metal salt crystals, and the treatment effect is better. Accordingly, when treating the other two sides of the surface, the operation can be completed by adjusting the forward direction of the repair machine 1.

[0070] Working principle: First, before the liquid injection and remediation treatment, the farmland soil contaminated by heavy metals determined by the previous test is divided into areas, and then the crushing roller 12 follows the movement of the remediation machine 1 to perform pre-treatment on the farmland soil lumps before the remediation treatment and remediation liquid is pumped into the liquid infusion pipe 6 by the water pump 11 and then flows into the injection pipe 7 for output;

[0071] When processing each area, the repair machine 1 first stops in place and then drives the counterweight seat 2 downward to contact the ground through the hydraulic mechanism to complete the support positioning. The trigger sleeve 801 moves upward along with the lowering and grounding support action of the counterweight seat 2 to contact the pipe wall of the injection pipe 7. The bottom end of the trigger sleeve 801 is then stored in the interior of the counterweight seat 2, and the bottoms of the two are aligned and parallel to ensure stable support conditions.

[0072] The conical cover 804 moves upward synchronously with the trigger tube sleeve 801 to contact the outer wall of the injection tube 7. As the contact process proceeds, the metal salt crystals and other particulate matter adhered to the outer wall of the injection tube 7 during the previous operation can be pushed and scraped, and under the action of gravity, they slide along the outer wall of the conical cover 804 to the inside of the collection dish 805, ensuring that the outer wall of the injection tube 7 is free of heavy metal pollutants existing in other areas during this repair process, avoiding the diffusion and transfer of pollutants. The collected metal salt crystals are also convenient for the staff to collect accordingly, and subsequent detection, analysis and comparison will be carried out to understand the recovery of the farmland soil before and after the injection of the repair liquid. With the upward movement of the trigger tube sleeve 801 and the downward movement of the injection tube 7, When the connecting rod 808 moves, the trigger ball rod 806 can generate an extrusion thrust on the connecting rod 808. The compensation spring 809 deforms in this process and stores a certain potential energy. When the subsequent extrusion thrust disappears, the connecting rod 808 and the piston plate 810 can be reset. When the connecting rod 808 moves upward, it drives the adjustment plates 814 hinged on both sides to rotate and unfold outward through the support plates 813 on both sides, which is the same as the transmission principle of the umbrella ribs. At the same time, the piston plate 810 moves upward under the action of the connecting rod 808 to push and output the chelating agent in the treatment liquid tank 807. The chelating agent is transported along the hoses 811 on both sides to the spray pipes 815 on both sides, and then sprayed to neutralize the contaminated soil surface below by metal salt crystallization.

[0073] When the repair liquid is transported and flows into the injection pipe 7, the output kinetic energy acts on the spiral blade 902 to rotate on the top of the porous partition 901, and disperses and impacts the repair liquid to be output and injected into the underground soil, thereby preventing the active substances in the repair liquid from accumulating and precipitating. At the same time, it can also drive each steel ball 903 to roll and impact the inside of the cavity, and collide and impact the area of ​​the liquid outlet 904, breaking the agglomeration of local precipitation, ensuring that the concentration of the agent in each area is consistent after injection into the soil, ensuring that the active ingredients of the repair liquid are in an active state during the transportation process, and at the same time, the collision and shaking off the stubborn adhesion layer on the inner wall of the liquid outlet 904 ensure that the liquid outlet 904 is unobstructed;

[0074] During the upward transmission of the trigger tube sleeve 801, the teeth 1001 are driven to move synchronously, and then the transmission gear 1004 meshing with the teeth 1001 can be driven to rotate inside the rectangular groove 1002, forming a horizontal rotational force, which is further applied to the screws 1005 on both sides through the shaft 1003. The scraper seats 1006 on both sides can form a limiting guide through the T-shaped block 1007 and the rectangular sleeve hole 1008, and the above-mentioned chelating agent spraying is synchronized to further crush the metal salt crystals on the soil surface. After the chelating agent falls, it can be more fully contacted and neutralized with the metal salt crystals, and the treatment effect is better. Accordingly, when treating the other two sides of the ground, the operation can be completed by adjusting the forward direction of the repair machine 1. After the metal salt crystals on the soil surface are neutralized, the subsequent removal of the injection pipe 7 can also reduce friction, scratches and adhesion, thereby extending the service life of the injection pipe 7.

[0075] After the final treatment is completed, the counterweight seat 2 is stored upward and reset, and the trigger sleeve 801 also returns to its original state downward as the squeezing force disappears, so as to be prepared for the next treatment.

[0076] The above describes an embodiment of the present invention, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms based on the inspiration of this embodiment, all of which are protected by this embodiment.

Claims

1. A repair liquid injection device for treating farmland heavy metal soil pollution, characterized in that: include: Repair machine (1), counterweight seat (2), column (3), movable module (4), repair liquid tank (5), infusion tube (6) and injection tube (7); The lifting and cleaning spraying module (8) includes a trigger pipe sleeve (801) and a pair of connecting springs (802). The trigger pipe sleeve (801) is fixedly connected to the connecting springs (802) on both sides, and moves upward along with the lowering and grounding support action of the counterweight seat (2), thereby contacting the pipe wall of the injection pipe (7); The eddy current impact module (9) comprises a porous partition (901) and a spiral blade (902), wherein the spiral blade (902) is rotatably connected to the middle of the porous partition (901), synchronously conveying the repair fluid downward to form an eddy current rotation force, stirring the repair fluid, and making the fluid more evenly dispersed after output injection; The surface treatment module (10) comprises teeth (1001) and a transmission gear (1004), wherein the teeth (1001) and the transmission gear (1004) are meshed and connected, synchronously triggering the action of the pipe sleeve (801) to form an expansion transmission, thereby further scraping off the metal salt crystals attached to the soil surface.

2. The repair liquid injection device for treating farmland heavy metal soil pollution according to claim 1 is characterized in that: The lifting and cleaning spraying module (8) also includes: The conical cover (804) is fixedly connected to the outer wall of the top end of the trigger tube sleeve (801); the outer wall of the trigger tube sleeve (801) is located below the conical cover (804) and is fixedly connected to a collection dish (805); grooves (803) are provided on both sides of the bottom of the counterweight seat (2); and the shapes of the grooves (803) on both sides are consistent with the bottom end of the trigger tube sleeve (801).

3. The repair liquid injection device for treating farmland heavy metal soil pollution according to claim 2, characterized in that: A trigger ball rod (806) is fixedly connected to the middle of one side of the collecting dish (805) away from the counterweight seat (2), a treatment liquid tank (807) is fixedly connected to the outer wall of the movable module (4), a piston plate (810) is slidably connected to the inside of the treatment liquid tank (807), a connecting push rod (808) is fixedly connected to the bottom of the piston plate (810), and the bottom end of the connecting push rod (808) passes through and extends to the bottom of the treatment liquid tank (807).

4. The repair liquid injection device for treating farmland heavy metal soil pollution according to claim 3 is characterized in that: The outer wall of the connecting push rod (808) is provided with a compensation spring (809), one end of the compensation spring (809) is fixedly connected to the connecting push rod (808), and the other end of the compensation spring (809) is fixedly connected to the treatment liquid tank (807). Both sides of the interior of the treatment liquid tank (807) are provided with hoses (811) above the piston plate (810), and the top ends of the hoses (811) on both sides are fixedly connected with hemispherical interfaces (812), and both sides of the bottom of the treatment liquid tank (807) are rotatably connected with adjustment plates (814).

5. The repair liquid injection device for treating farmland heavy metal soil pollution according to claim 4, characterized in that: The outer sides of the adjustment plates (814) on both sides are fixedly connected with spray pipes (815), the bottom ends of the hoses (811) on both sides are fixedly connected to the top ends of the spray pipes (815) on both sides, and the middle parts of both sides of the connecting push rod (808) are rotatably connected with support plates (813), and the ends away from the support plates (813) on both sides are hingedly connected to the adjustment plates (814) on both sides.

6. The repair liquid injection device for treating farmland heavy metal soil pollution according to claim 1, characterized in that: The eddy current impact module (9) further comprises: A plurality of steel balls (903) are distributed and filled in the cavity formed by the porous partition (901) and the lower inner wall of the injection tube (7). A plurality of liquid outlets (904) are evenly opened around the cavity below the outer wall of the injection tube (7).

7. The repair liquid injection device for treating farmland heavy metal soil pollution according to claim 1, characterized in that: The surface treatment module (10) further comprises: The shaft (1003) is fixedly connected to the transmission gear (1004); a rectangular groove (1002) is provided at the bottom of the counterweight seat (2); the shaft (1003) and the transmission gear (1004) are both rotatably connected inside the rectangular groove (1002); both ends of the shaft (1003) pass through the counterweight seat (2) and are fixedly connected to screws (1005).

8. The repair liquid injection device for treating farmland heavy metal soil pollution according to claim 7, characterized in that: The outer walls of the screw rods (1005) on both sides are threadedly connected to scraper seats (1006), and the middle parts of the scraper seats (1006) on both sides are fixedly connected to T-shaped blocks (1007). The middle parts of both sides of the counterweight seat (2) are provided with rectangular sleeve holes (1008), and the T-shaped blocks (1007) on both sides are slidably connected to the inner walls of the rectangular sleeve holes (1008) on both sides.

9. The repair liquid injection device for treating farmland heavy metal soil pollution according to claim 8, characterized in that: The counterweight seat (2) is slidably connected to the rear side of the repair machine (1) via a hydraulic drive module, the counterweight seat (2) is fixedly connected to the columns (3) on both sides, the outer walls of the columns (3) on both sides are slidably connected to the movable module (4) via a hydraulic mechanism, and the repair liquid tank (5) is fixedly connected to the top of the repair machine (1).

10. The repair liquid injection device for treating farmland heavy metal soil pollution according to claim 9, characterized in that: The top ends of the infusion pipes (6) on both sides are fixedly passed through the interior of the repair liquid tank (5), the outer walls of the infusion pipes (6) on both sides are fixedly connected to water pumps (11), the bottom ends of the infusion pipes (6) on both sides pass through the movable module (4) and extend to the interior of the injection pipe (7), and the bottom of the repair machine (1) is rotatably connected to a crushing roller (12).

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