Chemical leaching device for soil ecological restoration

Abstract

The utility model discloses a chemical elution device for soil ecological restoration relates to the field of soil pollution control, including chemical proportioning box, the inner wall of chemical proportioning box all is fixedly connected with the locating rod. The utility model discloses through setting up and drawing pipe to play the activity effect to the predetermined ring, and the both sides of drawing pipe are provided with scale groove, and the scale groove is marked with the scale of corresponding dose, when needing to set the specific injection amount, the operator first refers to the scale of scale groove and draws the predetermined ring to the corresponding position, and the clamping frame can be clamped and fixed to the scale groove of the both sides of drawing pipe, and the clamping frame restricts the movement of drawing pipe, when drawing rod is pulled out, and its end will form the resistance with the predetermined ring, thereby the pulling out amplitude of drawing rod is fixed in the preset position, realizes the accurate positioning of chemical reagent injection amount, avoids the possible failure of electronic component in the outdoor soil repair environment, and significantly improves the practicality and reliability of the device.

Description

Technical Field

[0001] This utility model relates to the field of soil pollution control, specifically a chemical leaching device for soil ecological restoration. Background Technology

[0002] With the acceleration of industrialization, unreasonable mining and smelting of mineral resources, sewage irrigation, sludge application, atmospheric deposition, and the application of chemical fertilizers and pesticides have led to increasingly serious soil pollution problems. Soil pollution not only reduces crop yields but also causes harmful substances to accumulate in crops, endangering human health through the food chain. Soil leaching technology is widely used due to its advantages such as wide applicability, rapid effectiveness, and significant results. This technology mainly uses chemicals that can promote the dissolution or migration of pollutants in the soil environment to inject them into the polluted soil layer, and then extracts the liquid containing pollutants for separation and wastewater treatment, thereby achieving the purpose of soil restoration. Therefore, a chemical leaching device for soil ecological restoration is needed.

[0003] Existing chemical leaching devices for soil ecological restoration often employ a single pipe or fixed interface design, resulting in complex connections to the chemical storage containers. This often requires cumbersome sealing and pipeline adjustments. Changing to different types of chemicals or replenishing chemicals involves lengthy, time-consuming, and labor-intensive procedures. Furthermore, soil pollution exhibits high spatial heterogeneity, with significant differences in the types, concentrations, and physicochemical properties of pollutants in different regions. The amount of chemical agent injected must be adjusted specifically based on the actual conditions at each pollution site, making it difficult to pre-position the required dosage. Therefore, there is an urgent need for a chemical leaching device for soil ecological restoration. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a chemical leaching device for soil ecological restoration, in order to solve the problems of existing chemical leaching devices for soil ecological restoration, which often adopt a single pipe or fixed interface design, have complicated connection methods with the agent storage container, often require cumbersome sealing treatment and pipeline debugging, and have lengthy and time-consuming operation steps when changing different types of agents or replenishing agents. Soil pollution has a high degree of spatial heterogeneity, and there are significant differences in the types and concentrations of pollutants and soil physicochemical properties in different areas. The amount of chemical agent injected needs to be adjusted according to the actual situation of the specific pollution point, which makes it inconvenient to pre-position the dosage of chemical agent to be injected.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a chemical leaching device for soil ecological restoration, comprising a chemical mixing tank, with positioning rods fixedly connected to the inner wall of the chemical mixing tank, a centrifugal pump fixedly connected to the outer wall of the positioning rods, connecting rods installed on both sides of the centrifugal pump, and fixing sleeves fixedly connected to the outer walls of the connecting rods, a leaching pipe installed on one side of the centrifugal pump, a connecting pipe installed on the other side of the centrifugal pump, a valve pipe welded to one side of the chemical mixing tank, a first spring welded to the inner wall of the valve pipe, a first valve ball welded to one end of the first spring, a guide pipe welded to one side of the valve pipe, a second spring welded to the inner wall of the valve pipe, a second valve ball welded to one end of the second spring, a sealing sleeve abutting against the outer wall of the second valve ball, and a chemical tank fitting against the outer wall of the sealing sleeve.

[0006] The inner wall of the feed tube is fixedly connected to a pull tube, the inner wall of the pull tube is equipped with a pull rod, the outer wall of the pull rod is bonded with a sealing ring, the outer wall of the pull tube is equipped with a predetermined ring, and a third spring is welded to both sides of the predetermined ring. A clip is welded to one end of the third spring.

[0007] Preferably, the valve tube is movably connected to the first valve ball, and the inner diameter of the valve tube is the same as the outer diameter of the first valve ball.

[0008] Preferably, the outer wall of the second valve ball is in close contact with the inner wall of the sealing sleeve, and the inner wall of the sealing sleeve has an open design.

[0009] Preferably, the guide tube is threadedly connected to the pull tube, and the guide tube is configured with a "C" shape.

[0010] Preferably, the outer wall of the pull rod is tightly fitted to the inner wall of the sealing ring, and the inner wall of the pull rod has a slotted design.

[0011] Preferably, the pull tube is movably connected to the predetermined ring, and the inner wall of the pull tube has a slotted design.

[0012] Preferably, the predetermined ring is engaged with the card holder, and the card holder is symmetrically arranged about the central axis of the predetermined ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model uses a valve tube to activate the first valve ball. When the operator pulls the lever, a negative pressure is generated inside the device. Under this negative pressure, the second valve ball experiences an upward suction force, which compresses the second spring, causing it to deform. As the second valve ball moves, the passage between the chemical tank and the feed tube is opened, allowing the chemicals inside the chemical tank to be smoothly drawn into the corresponding cavity of the pull tube. When the pull lever is pushed, the second valve ball is no longer attracted by the negative pressure, and the second spring, with its elastic restoring force, resists the second valve ball, causing it to return to its original position. This closes the passage between the chemical tank and the feed tube, preventing the drawn chemicals from flowing back into the chemical tank. Simultaneously, the chemicals drawn into the pull tube cavity exert pressure on the first valve ball, causing it to move away from the passage opening. The device moves and presses against the first spring, compressing it. The absorbed chemical agent can then be quickly discharged through the channel. Pulling and pushing the lever, using the cooperation of the first valve ball with the first spring and the second spring with the second valve ball, controls the extraction and discharge of the chemical agent. This greatly simplifies the operation process. When it is necessary to change different types of chemicals or replenish the chemical agent, there is no need for complicated pipeline disassembly and sealing. Since the entire chemical extraction and discharge channel is controlled by simply operating the lever, it eliminates the cumbersome interface connection and debugging steps in traditional devices. It can quickly complete the replacement or replenishment of chemicals, effectively reducing operation steps, saving a lot of time and labor costs, and significantly improving the efficiency of chemical rinsing operations.

[0015] 2. This utility model uses a pull-out tube to facilitate the movement of a predetermined ring. The predetermined ring is fixed at a specific position in the device, and its inner wall maintains a suitable gap with the outer wall of the pull-out tube. This ensures that the pull-out tube can be smoothly pulled and moved axially. Dimensional grooves are provided on both sides of the pull-out tube, with markings indicating the corresponding drug dosage. When a specific injection volume needs to be set, the operator first refers to the markings in the dimensional grooves and pulls the predetermined ring to the corresponding position. At this time, the clamp can engage and fix the dimensional grooves on both sides of the pull-out tube, restricting the movement of the pull-out tube. When the pull-out rod is pulled outwards, its end will... The system forms contact with the predetermined ring, whose position matches the scale of the pull-out tube. When the pull-out rod is pulled to the preset length, the pull-out rod limiting structure will tightly contact the predetermined ring, thereby fixing the pull-out amplitude of the pull-out rod at the preset position. Through the triple coordination of intuitive measurement of the pull-out tube scale groove, fixed position by the clamp, and limit by the contact between the pull-out rod and the predetermined ring, the precise pre-positioning of the chemical agent injection volume is achieved. This not only reduces equipment costs but also avoids possible failures of electronic components in outdoor soil remediation environments, significantly improving the practicality and reliability of the device. Attached Figure Description

[0016] Figure 1This is a perspective view of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model from a vertical sectional view;

[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0019] Figure 4 This utility model Figure 2 Enlarged structural diagram of section B.

[0020] In the diagram: 1. Chemical proportioning tank; 2. Positioning rod; 3. Centrifugal pump; 4. Connecting rod; 5. Fixing sleeve; 6. Rinsing pipe; 7. Connecting pipe; 8. Valve pipe; 9. First spring; 10. First valve ball; 11. Feed guide pipe; 12. Second spring; 13. Second valve ball; 14. Sealing sleeve; 15. Chemical tank; 16. Pull-out pipe; 17. Pull-out rod; 18. Sealing ring; 19. Pre-locking ring; 20. Third spring; 21. Clip. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] The embodiments of this utility model will be described below based on its overall structure.

[0023] Please see Figure 1-4A chemical leaching device for soil ecological restoration includes a chemical mixing tank 1. Positioning rods 2 are fixedly connected to the inner wall of the chemical mixing tank 1. A centrifugal pump 3 is fixedly connected to the outer wall of the positioning rods 2. Connecting rods 4 are installed on both sides of the centrifugal pump 3, and fixing sleeves 5 are fixedly connected to the outer walls of the connecting rods 4. A leaching pipe 6 is installed on one side of the centrifugal pump 3, and a connecting pipe 7 is installed on the other side. A valve pipe 8 is welded to one side of the chemical mixing tank 1. A first spring 9 is welded to the inner wall of the valve pipe 8, and a first valve ball 10 is welded to one end of the first spring 9. The valve pipe 8 and the first valve ball 10 are movably connected, and the valve... The inner diameter of the tube 8 is the same as the outer diameter of the first valve ball 10. A guide tube 11 is welded to one side of the valve tube 8. A second spring 12 is welded to the inner wall of the valve tube 8. A second valve ball 13 is welded to one end of the second spring 12. The outer wall of the second valve ball 13 abuts against the sealing sleeve 14. The outer wall of the second valve ball 13 is tightly fitted with the inner wall of the sealing sleeve 14. The inner wall of the sealing sleeve 14 is designed with an opening. The outer wall of the sealing sleeve 14 is fitted with the chemical tank 15. The valve tube 8 is used to move the first valve ball 10. When the operator pulls the lever 17, a negative pressure is generated inside the device. Under negative pressure, the second valve ball 13 is subjected to upward suction, which in turn squeezes the second spring 12, causing the second spring 12 to deform. As the second valve ball 13 moves, the passage between the chemical tank 15 and the feed tube 11 is opened, allowing the chemical reagent inside the chemical tank 15 to be smoothly drawn into the corresponding cavity of the pull tube 16. When the pull rod 17 is pushed, the second valve ball 13 is no longer attracted by negative pressure, and the second spring 12 will resist the second valve ball 13 with its own elastic restoring force, causing the second valve ball 13 to return to its original position, thereby closing the passage between the chemical tank 15 and the feed tube 11 and preventing the drawn chemical reagent from flowing back into the chemical tank 15. At the same time, the chemical reagent drawn into the cavity of the pull tube 16 will exert pressure on the first valve ball 10. Under this pressure, the first valve ball... The pump 10 moves away from the channel opening and presses against the first spring 9, compressing it. The absorbed chemical agent can then be quickly discharged through the channel. Pulling and pushing the pull rod 17, using the cooperation of the first valve ball 10 with the first spring 9 and the second spring 12 with the second valve ball 13, controls the extraction and discharge of the chemical agent, greatly simplifying the operation process. When it is necessary to change different types of chemicals or replenish the chemical agent, there is no need for complicated pipeline disassembly and sealing. Since the entire chemical agent extraction and discharge channel is controlled by the simple operation of the pull rod 17, the cumbersome interface connection and debugging steps in traditional devices are eliminated. The chemical agent can be quickly replaced or replenished, effectively reducing the number of operation steps, saving a lot of time and labor costs, and significantly improving the efficiency of chemical rinsing operations.

[0024] Please see Figure 1-4A chemical leaching device for soil ecological restoration includes a feed pipe 11 with a pull-out pipe 16 fixedly connected to its inner wall. The feed pipe 11 and the pull-out pipe 16 are threaded together, and the feed pipe 11 has a "C"-shaped structure. A pull-out rod 17 is installed on the inner wall of the pull-out pipe 16, and a sealing ring 18 is bonded to the outer wall of each pull-out rod 17. The outer wall of the pull-out rod 17 fits tightly with the inner wall of the sealing ring 18, and the inner wall of the pull-out rod 17 has a slotted design. A pre-set ring 19 is installed on the outer wall of the pull-out pipe 16, and the pull-out pipe 16 and the pre-set ring... The device is connected by a movable connection 19, and the inner wall of the pull-out tube 16 has a slotted design. A third spring 20 is welded to both sides of the predetermined ring 19, and a retainer 21 is welded to one end of each spring 20. The predetermined ring 19 engages with the retainer 21, and the retainer 21 is symmetrically arranged about the central axis of the predetermined ring 19. The pull-out tube 16 allows the predetermined ring 19 to move, fixing it in a specific position within the device. The inner wall of the predetermined ring 19 maintains a suitable gap with the outer wall of the pull-out tube 16, ensuring that the pull-out tube 16 can be smoothly drawn axially. The pull-out tube 16 has dimensional grooves on both sides, with markings indicating the corresponding drug dosage. When a specific injection volume needs to be set, the operator first refers to the markings on the dimensional grooves and pulls the predetermined ring 19 to the corresponding position. At this time, the clamp 21 can engage and fix the dimensional grooves on both sides of the pull-out tube 16, restricting the movement of the pull-out tube 16. When the pull-out rod 17 is pulled outward, its end will abut against the predetermined ring 19. The position of the predetermined ring 19 matches the markings on the dimensional grooves of the pull-out tube 16. When the pull-out rod 17 is pulled outward, its end will abut against the predetermined ring 19. When the pull reaches the preset length, the limiting structure of the pull rod 17 will tightly abut against the predetermined ring 19, thereby fixing the pull-out amplitude of the pull rod 17 at the preset position. Through the triple coordination of the visual measurement of the pull tube 16 dimensional groove, the locking position of the bracket 21, and the abutment and limiting of the pull rod 17 and the predetermined ring 19, the precise pre-positioning of the chemical agent injection amount is achieved. This not only reduces equipment costs but also avoids possible failures of electronic components in outdoor soil remediation environments, significantly improving the practicality and reliability of the device.

[0025] Working principle: In use, take out the device and place it in the designated position. Secure the positioning rod 2 to the centrifugal pump 3 with threads. Align the rinsing pipe 6 with the centrifugal pump 3. Engage and secure the connecting rod 4 to the rinsing pipe 6 and centrifugal pump 3. Secure the fixing sleeve 5 to the connecting rod 4 with threads. Align the connecting pipe 7 with the centrifugal pump 3. Engage and secure the connecting rod 4 to the connecting pipe 7 and centrifugal pump 3. Secure the fixing sleeve 5 to the connecting rod 4 with threads. Pull the pre-set ring 19 away from the bracket 21. Move the pre-set ring 19 to the designated position on the pull-out tube 16. Engage the third spring 20 against the bracket 21. Insert the bracket 21 into the pull-out tube 16. After securing the device, pour chemical reagent into the chemical tank 15, pull open the pull rod 17, and press the second valve ball 13 against the second spring 12 to draw in the reagent through the feed pipe 11. Fill the pull pipe 16 with the reagent, push the pull rod 17 to open the first valve ball 10 against the first spring 9, and inject the reagent into the chemical mixing tank 1. Finally, turn on the centrifugal pump 3 to discharge the reagent, and inject the rinsing pipe 6 into the contaminated soil layer for chemical rinsing. This completes the operation of the device. Contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A chemical leaching device for soil ecological restoration, comprising a chemical mixing tank (1), characterized in that: The inner wall of the chemical mixing tank (1) is fixedly connected with positioning rods (2), and the outer wall of the positioning rods (2) is fixedly connected with centrifugal pumps (3). Connecting rods (4) are installed on both sides of the centrifugal pumps (3), and fixing sleeves (5) are fixedly connected to the outer walls of the connecting rods (4). A rinsing pipe (6) is installed on one side of the centrifugal pumps (3), and a connecting pipe (7) is installed on the other side of the centrifugal pumps (3). A valve pipe (8) is welded to one side of the chemical mixing tank (1). A first spring (9) is welded to the inner wall of the valve tube (8), a first valve ball (10) is welded to one end of the first spring (9), a guide tube (11) is welded to one side of the valve tube (8), a second spring (12) is welded to the inner wall of the valve tube (8), a second valve ball (13) is welded to one end of the second spring (12), a sealing sleeve (14) is abutted against the outer wall of the second valve ball (13), and a chemical tank (15) is attached to the outer wall of the sealing sleeve (14). The inner wall of the feed tube (11) is fixedly connected to a pull tube (16), the inner wall of the pull tube (16) is equipped with a pull rod (17), the outer wall of the pull rod (17) is bonded with a sealing ring (18), the outer wall of the pull tube (16) is equipped with a predetermined ring (19), the two sides of the predetermined ring (19) are welded with a third spring (20), and one end of the third spring (20) is welded with a bracket (21).

2. The chemical leaching device for soil ecological restoration according to claim 1, characterized in that: The valve tube (8) is movably connected to the first valve ball (10), and the inner diameter of the valve tube (8) is the same as the outer diameter of the first valve ball (10).

3. The chemical leaching device for soil ecological restoration according to claim 1, characterized in that: The outer wall of the second valve ball (13) is tightly fitted with the inner wall of the sealing sleeve (14), and the inner wall of the sealing sleeve (14) is designed with an opening.

4. A chemical leaching device for soil ecological restoration according to claim 1, characterized in that: The guide tube (11) is threadedly connected to the pull tube (16), and the guide tube (11) is configured with a "C" shape.

5. A chemical leaching device for soil ecological restoration according to claim 1, characterized in that: The outer wall of the pull rod (17) is tightly fitted to the inner wall of the sealing ring (18), and the inner wall of the pull rod (17) is designed with a slot.

6. A chemical leaching device for soil ecological restoration according to claim 1, characterized in that: The pull tube (16) is movably connected to the predetermined ring (19), and the inner wall of the pull tube (16) is designed with a slot.

7. A chemical leaching device for soil ecological restoration according to claim 1, characterized in that: The predetermined ring (19) is engaged with the card holder (21), and the card holder (21) is symmetrically arranged about the central axis of the predetermined ring (19).

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