A soil heavy metal pollution remediation device

Abstract

The application belongs to the technical field of soil remediation, and particularly discloses a soil heavy metal pollution remediation device, which comprises a tank body, a mixing assembly is arranged in the tank body, and the mixing assembly comprises a rotating drum, a bottom ring, a rotating rod, a scraper and a positioning sleeve; a rotating rod is vertically arranged at the center of the tank body, a plurality of scrapers are fixed to the bottom end of the rotating rod, the scrapers are vertically arranged, a bottom ring is arranged at the bottom of the inner side of the tank body, the bottom end of the rotating rod is connected to the inner side wall of the bottom ring by means of the scrapers, and the circumferential outer side surface of the bottom ring is attached to the inner side wall of the tank body; two opposite rotating drums are arranged in the tank body, and the surface of the rotating drum is provided with a gear strip. The soil in the rotating drum is crushed in the tank body by the rotating scrapers, the soil and the liquid medicine are fully mixed in the tank body by the gear strip on the outer side of the rotating drum and the scrapers, the liquid medicine absorbs the heavy metals in the soil, the static soil is subjected to pressure filtration treatment, and the soil is remediated.

Description

Technical Field

[0001] This invention belongs to the field of soil remediation technology, and specifically relates to a soil heavy metal pollution remediation device. Background Technology

[0002] The harm of heavy metal pollution to farmland soil should not be underestimated. It not only reduces soil fertility and damages soil structure, but also accumulates through the food chain, threatening human health.

[0003] Currently, traditional equipment cannot effectively break down soil clods when mixing soil, resulting in uneven soil particle size, which affects the subsequent mixing effect with the chemical solution and reduces the effectiveness of soil improvement.

[0004] Therefore, it is necessary to invent a soil heavy metal pollution remediation device to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a soil heavy metal pollution remediation device to solve the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A soil heavy metal pollution remediation device includes a tank body. Inside the tank body is a mixing assembly comprising: a rotating cylinder, a bottom ring, a rotating rod, scrapers, and positioning sleeves. A rotating rod is vertically positioned at the center of the tank body, with multiple scrapers fixed to its bottom end. The scrapers are vertically positioned, and a bottom ring is located at the bottom inner side of the tank body. The bottom end of the rotating rod is connected to the inner wall of the bottom ring via scrapers, and the outer circumference of the bottom ring is in contact with the inner wall of the tank body. Two opposing rotating cylinders are located inside the tank body, with toothed strips on their surfaces. The rotating rod surface is constrained by limiting components, and the top surface of the scrapers corresponds to the bottom opening of the rotating cylinders. Two positioning sleeves are fixed to the inner wall of the tank body, each corresponding to one of the two rotating cylinders. The positioning sleeves are rotatably fitted onto the top of the rotating cylinders, allowing soil to enter the rotating cylinders. A discharge port is located at the bottom of the tank body, with a sealing block inserted inside the discharge port.

[0007] Furthermore, two frames are fixed to the top of the tank, and a driving component is installed on the top of the two frames, with the top of the rotating rod being connected to the output end of the driving component.

[0008] Furthermore, the top of the rotating drum is provided with an annular groove, the positioning sleeve is rotatably fitted on the outside of the annular groove, and the surface of the positioning sleeve is connected to the inner side wall of the tank by a connecting rod.

[0009] Furthermore, the limiting component includes: a toothed ring and an inner ring; the inner ring is spirally sleeved on the surface of the rotating rod, and two toothed rings are provided on the outer side of the inner ring. The inner ring is sleeved on the outer side of the toothed ring by the side, and the two toothed rings correspond one-to-one with the two rotating cylinders. The toothed rings are rotatably sleeved on the outer side of the rotating cylinders.

[0010] Furthermore, the outer circumference of the toothed ring is provided with a circular groove, and a circular ring is fixed to the outer side of the side and sleeved on the outside of the circular groove. The toothed ring rotates inside the circular ring by utilizing the circular groove.

[0011] Furthermore, two side frames are fixed to the outer circumference of the tank, and multiple slots are opened on the inner side wall of the tank, with the inside of the tank communicating with the inside of the side frames through the slots.

[0012] Furthermore, both sides of the top surface of the side frame are fixed with top edges, and a pressure plate is provided on the top of the side frame. Vertical rods penetrating the top edges are fixed on the bottom surfaces of both ends of the pressure plate. Elastic elements are sleeved on the surface of the vertical rods, and the elastic elements are connected between the bottom surface of the pressure plate and the top surface of the top edge. Nuts are screwed onto the bottom end of the vertical rods, and screws are screwed into the bottom surface of the side frame.

[0013] Furthermore, a filter plate is connected to the bottom surface of the pressure plate by a pressure rod, the filter plate corresponds to the groove, and a notch corresponding to the filter plate is opened on the top surface of the side frame.

[0014] The technical effects and advantages of this invention are as follows: 1. This invention uses a rotating scraper to crush the soil inside the drum into the tank, and also uses toothed strips and scrapers on the outside of the drum to fully mix the soil and the medicine inside the tank. The medicine absorbs heavy metals in the soil, and the static soil is filtered to complete the soil remediation.

[0015] 2. This invention utilizes the elasticity of the elastic element in conjunction with the nut to facilitate the removal of impurities from the medicine solution through the filtration effect of the filter plate, and also allows for the collection of used medicine solution through the side frame. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of the soil heavy metal pollution remediation device according to an embodiment of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the tank body according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal components of the tank according to an embodiment of the present invention; Figure 4 This is a three-dimensional cross-sectional view of the rotating drum according to an embodiment of the present invention; Figure 5 This is an embodiment of the present invention. Figure 4 Enlarged view of part A in the diagram; Figure 6 This is a schematic diagram of the bottom ring connected to the bottom of the rotating rod using a scraper according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the internal components of the side frame according to an embodiment of the present invention; In the diagram: 1. Tank body; 101. Discharge port; 102. Sealing block; 103. Groove; 2. Rotary drum; 201. Toothed rack; 202. Ring groove; 3. Bottom ring; 4. Rotating rod; 5. Scraper; 6. Positioning sleeve; 601. Connecting rod; 7. Frame; 8. Driving component; 9. Toothed ring; 10. Inner ring; 11. Side frame; 12. Top edge; 13. Pressure plate; 14. Vertical rod; 15. Elastic component; 16. Nut; 17. Screw; 18. Filter plate. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0018] This invention provides a soil heavy metal pollution remediation device, such as... Figures 1 to 5 As shown, the system includes a tank 1, inside which a mixing assembly is installed. The mixing assembly includes a rotating drum 2, a bottom ring 3, a rotating rod 4, scrapers 5, and a positioning sleeve 6. A rotating rod 4 is vertically positioned at the center of the tank 1. Multiple scrapers 5 are fixed to the bottom of the rotating rod 4, and the scrapers 5 are vertically positioned. A bottom ring 3 is located on the inner bottom of the tank 1. The bottom end of the rotating rod 4 is connected to the inner wall of the bottom ring 3 via the scrapers 5, and the outer circumference of the bottom ring 3 is in contact with the inner wall of the tank 1. Two frames 7 are fixed to the top of the tank 1, and a driving component 8 is installed on the top of the two frames 7. The top of the rotating rod 4 is connected to the output end of the driving component 8, and the driving component 8 is a drive motor.

[0019] Inside the tank body 1, there are two opposing rotating cylinders 2. The surface of the rotating cylinder 2 is provided with toothed racks 201. Multiple toothed racks 201 are arranged side by side on the outer circumference of the rotating cylinder 2. The rotating rod 4 is limited to the middle of the rotating cylinder 2 by a limiting component. The top surface of the scraper 5 corresponds to the bottom opening of the rotating cylinder 2. Two positioning sleeves 6 are fixed to the inner wall of the tank body 1. The two positioning sleeves 6 correspond one-to-one with the two rotating cylinders 2. The positioning sleeves 6 are rotatably sleeved on the top of the rotating cylinder 2. Soil is introduced into the interior of the rotating cylinder 2. The top of the rotating cylinder 2 is provided with an annular groove 202. The positioning sleeves 6 are rotatably sleeved on the outside of the annular groove 202. The surface of the positioning sleeves 6 is connected to the inner wall of the tank body 1 by a connecting rod 601. The bottom of the tank body 1 is provided with a discharge port 101. A sealing block 102 is inserted into the discharge port 101.

[0020] Specifically, the discharge port 101 is sealed using the sealing block 102, and the soil containing heavy metals to be repaired is introduced into the rotating drum 2. Liquid chemicals are then introduced into the rotating drum 2, causing the soil to accumulate inside. The drive unit 8 is activated, and the rotating rod 4 at the output end of the drive unit 8 rotates. The rotating rod 4, through multiple scrapers 5, drives the bottom ring 3 to rotate. At this time, the limiting component limits the middle of the rotating drum 2, and the positioning sleeve 6, through the ring groove 202, limits the top of the rotating drum 2. The rotating scrapers 5 rotate at the bottom opening of the rotating drum 2, scraping away the soil falling from the bottom opening of the rotating drum 2. The multiple scrapers 5 break up the soil inside the rotating drum 2, ensuring that the broken soil and liquid chemicals are in full contact inside the tank 1.

[0021] When the rotating rod 4 drives the bottom ring 3 to rotate using the scraper 5, the rotating bottom ring 3 uses multiple toothed racks 201 to make the rotating cylinder 2 rotate. The top of the rotating cylinder 2 rotates inside the positioning sleeve 6, and the middle of the rotating cylinder 2 rotates inside the limiting component. The rotating cylinder 2 uses multiple toothed racks 201 to stir the soil, and uses multiple scrapers 5 to make the soil and medicine solution fully mixed inside the tank 1. The medicine solution absorbs the heavy metals in the soil. The driving component 8 is stopped, and the mixture of soil and medicine solution is left to stand inside the tank 1 until the soil and medicine solution separate.

[0022] The sealing block 102 is pulled out from the bottom of the discharge port 101. At this time, the discharge port 101 at the bottom of the tank 1 is in the open state. The soil that has been standing in the tank 1 is fed into the filter press through the discharge port 101. The filter press is used to fully filter out the water inside the soil. At this time, the liquid in the water separates the heavy metal molecules in the soil from the soil, thus completing the soil remediation.

[0023] In this embodiment, the rotating scraper 5 causes the soil inside the rotating drum 2 to be crushed inside the tank 1. The toothed strip 201 on the outside of the rotating drum 2 and the scraper 5 also allow the soil and the medicine to be fully mixed inside the tank 1. The medicine absorbs the heavy metals in the soil and performs pressure filtration on the static soil to complete the soil remediation.

[0024] To limit the middle part of the rotating drum 2, a limiting component is used to limit the rotating drum 2. Figure 3 and Figure 6 The defined components include: a toothed ring 9 and an inner ring 10; the inner ring 10 is spirally sleeved on the surface of the rotating rod 4, and two toothed rings 9 are provided on the outer side of the inner ring 10. The inner ring 10 is sleeved on the outer side of the toothed rings 9 by means of a side clamp. The two toothed rings 9 correspond one-to-one with the two rotating cylinders 2, and the toothed rings 9 are rotatably sleeved on the outer side of the rotating cylinders 2. A circular groove is provided on the outer circumference of the toothed ring 9, and a circular ring sleeved on the outer side of the side is fixed, and the toothed ring 9 rotates on the inner side of the circular ring by means of the circular groove.

[0025] Specifically, the rotating rod 4 causes the inner ring 10 to move up and down on the surface of the rotating rod 4. The moving inner ring 10 uses the side ring to drive the toothed ring 9 to move up and down synchronously on the surface of the rotating cylinder 2. The moving toothed ring 9 scrapes off the soil on the surface of the rotating cylinder 2, which can prevent the soil from accumulating and adsorbing on the outside of the rotating cylinder 2.

[0026] In this embodiment, the rotation of the rotating rod 4 facilitates the inner ring 10 to drive the toothed ring 9 to move synchronously using its side. The moving toothed ring 9 scrapes off the soil on the surface of the rotating cylinder 2, thus preventing the soil from accumulating and adsorbing on the outside of the rotating cylinder 2.

[0027] To drain the settled medicinal liquid, the side frame 11 is used to drain the liquid. Figures 1 to 3 as well as Figure 7 In the tank, two side frames 11 are fixed to the outer circumference of the tank body 1. Multiple slots 103 are formed on the inner wall of the tank body 1, connecting the interior of the tank body 1 to the interior of the side frames 11 via the slots 103. Top edges 12 are fixed to both sides of the top surface of the side frames 11. A pressure plate 13 is provided at the top of the side frames 11, and vertical rods 14 penetrating the top edges 12 are fixed to the bottom surfaces of both ends of the pressure plate 13. Elastic elements 15, which are springs, are sleeved on the surface of the vertical rods 14, connecting the bottom surface of the pressure plate 13 to the top surface of the top edges 12. A nut 16 is screwed onto the bottom end of the vertical rod 14, and a screw 17 is screwed into the bottom surface of the side frames 11. A filter plate 18 is connected to the bottom surface of the pressure plate 13 via a pressure rod. The filter plate 18 corresponds to the slots 103, and a notch corresponding to the filter plate 18 is formed on the top surface of the side frames 11.

[0028] Specifically, the elastic force of the elastic element 15 causes the pressure plate 13 to move upward. The upward-moving pressure plate 13 uses the vertical rod 14 to make the top surface of the nut 16 fit with the bottom surface of the top edge 12. Tightening the nut 16, the nut 16 and the elastic element 15 cooperate to facilitate the use of the vertical rod 14 to pull the pressure plate 13 up and down. The moving pressure plate 13 uses the pressure rod to make the filter plate 18 move inside the side frame 11 until the filter plate 18 corresponds to the groove 103.

[0029] The rotating scraper 5 works in conjunction with the rotating drum 2 to facilitate the thorough mixing of soil and pesticide inside the tank 1, and to facilitate the absorption of heavy metal molecules in the soil by the pesticide. When the drive unit 8 is stopped, the mixture of soil and pesticide is left to stand inside the tank 1 until the soil and pesticide separate.

[0030] Pressing the pressure plate 13 causes it to move downwards within the top edge 12 using the vertical rod 14. The pressure plate 13, in conjunction with the compression elastic element 15, causes the filter plate 18 to move downwards within the side frame 11 using the pressure rod, until the filter plate 18 separates from the slot 103. At this point, the liquid medicine remaining in the tank 1 enters the side frame 11 through the slot 103. The liquid medicine accumulates on the top surface of the filter plate 18 and then flows through the filter plate 18 to the bottom inner side of the side frame 11. Impurities in the liquid medicine accumulate on the top surface of the filter plate 18 until the liquid medicine inside the tank 1 can no longer enter the side frame 11.

[0031] Loosen the nut 16. The elastic force of the elastic element 15 causes the pressure plate 13 to move upward. The upward-moving pressure plate 13 uses the pressure rod to move the filter plate 18 to the notch position. The impurities on the top surface of the filter plate 18 are removed through the notch. Remove the screw 17 at the bottom of the side frame 11. The medicine is discharged through the opening at the bottom of the side frame 11, thus completing the collection of the medicine.

[0032] In this embodiment, the elastic force of the elastic member 15 cooperates with the nut 16, and the filter plate 18 facilitates the removal of impurities from the medicine liquid. The used medicine liquid can also be collected through the side frame 11.

[0033] Working principle of this invention: Reference Figures 1 to 7 As shown, the soil containing heavy metals to be remediated is introduced into the rotating drum 2, and a chemical solution is introduced into the rotating drum 2, causing the soil to accumulate inside. The drive unit 8 is activated, and the rotating rod 4 at the output end of the drive unit 8 rotates. The rotating rod 4, through multiple scrapers 5, drives the bottom ring 3 to rotate. At this time, the limiting component limits the middle of the rotating drum 2, and the positioning sleeve 6, through the annular groove 202, limits the top of the rotating drum 2. The rotating scrapers 5 rotate at the bottom opening of the rotating drum 2, scraping away the soil falling from the bottom opening of the rotating drum 2. The multiple scrapers 5 break up the soil inside the rotating drum 2, ensuring that the broken soil and the chemical solution are in full contact inside the tank 1.

[0034] When the rotating rod 4 drives the bottom ring 3 to rotate using the scraper 5, the rotating bottom ring 3 uses multiple toothed racks 201 to make the rotating cylinder 2 rotate. The top of the rotating cylinder 2 rotates inside the positioning sleeve 6, and the middle of the rotating cylinder 2 rotates inside the limiting component. The rotating cylinder 2 uses multiple toothed racks 201 to stir the soil, and uses multiple scrapers 5 to make the soil and medicine solution fully mixed inside the tank 1. The medicine solution absorbs the heavy metals in the soil. The driving component 8 is stopped, and the mixture of soil and medicine solution is left to stand inside the tank 1 until the soil and medicine solution separate.

[0035] The rotating rod 4 causes the inner ring 10 to move up and down on the surface of the rotating rod 4. The moving inner ring 10 uses the side ring to drive the toothed ring 9 to move up and down synchronously on the surface of the rotating cylinder 2. The moving toothed ring 9 scrapes off the soil on the surface of the rotating cylinder 2, which can prevent the soil from accumulating and adsorbing on the outside of the rotating cylinder 2.

[0036] Pressing the pressure plate 13 causes it to move downwards within the top edge 12 using the vertical rod 14. The pressure plate 13, in conjunction with the compression elastic element 15, causes the filter plate 18 to move downwards within the side frame 11 using the pressure rod, until the filter plate 18 separates from the slot 103. At this point, the liquid medicine remaining in the tank 1 enters the side frame 11 through the slot 103. The liquid medicine accumulates on the top surface of the filter plate 18 and then flows through the filter plate 18 to the bottom inner side of the side frame 11. Impurities in the liquid medicine accumulate on the top surface of the filter plate 18 until the liquid medicine inside the tank 1 can no longer enter the side frame 11.

[0037] Loosen the nut 16. The elastic force of the elastic element 15 causes the pressure plate 13 to move upward. The upward-moving pressure plate 13 uses the pressure rod to move the filter plate 18 to the notch position. The impurities on the top surface of the filter plate 18 are removed through the notch. Remove the screw 17 at the bottom of the side frame 11. The medicine is discharged through the opening at the bottom of the side frame 11, thus completing the collection of the medicine.

[0038] Open the discharge port 101 at the bottom of tank 1 and pass the soil that has been standing inside tank 1 into the filter press through the discharge port 101. Use the filter press to fully filter out the water inside the soil. At this time, the chemical solution in the water will separate the heavy metal molecules in the soil from the soil, thus completing the soil remediation.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A soil heavy metal pollution remediation device, comprising a tank (1), characterized in that: The tank (1) is equipped with a mixing assembly, which includes a rotating cylinder (2), a bottom ring (3), a rotating rod (4), a scraper (5), and a positioning sleeve (6). A rotating rod (4) is vertically arranged at the center of the tank (1). Multiple scrapers (5) are fixed at the bottom of the rotating rod (4). The scrapers (5) are vertically arranged. A bottom ring (3) is provided at the bottom of the inner side of the tank (1). The bottom of the rotating rod (4) is connected to the inner wall of the bottom ring (3) by the scraper (5). The outer circumference of the bottom ring (3) is in contact with the inner wall of the tank (1). The tank (1) is equipped with two... The rotating drum (2) is provided with toothed strips (201) on its surface. The rotating rod (4) is used to limit the rotating drum (2) by limiting components. The top surface of the scraper (5) corresponds to the bottom opening of the rotating drum (2). Two positioning sleeves (6) are fixed on the inner wall of the tank (1). The two positioning sleeves (6) correspond one-to-one with the two rotating drums (2). The positioning sleeves (6) are rotated and fitted onto the top of the rotating drum (2). Soil is introduced into the rotating drum (2). The bottom of the tank (1) is provided with a discharge port (101). A sealing block (102) is inserted into the discharge port (101). The limiting component includes: a toothed ring (9) and an inner ring (10); the inner ring (10) is spirally sleeved on the surface of the rotating rod (4), and two toothed rings (9) are provided on the outer side of the inner ring (10). The inner ring (10) is sleeved on the outer side of the toothed ring (9) by means of the side clamp. The two toothed rings (9) correspond one-to-one with the two rotating cylinders (2), and the toothed rings (9) are rotatably sleeved on the outer side of the rotating cylinder (2); The toothed ring (9) has a circular groove on its outer circumference, and a circular ring is fixed on the outer side of the side and sleeved on the outside of the circular groove. The toothed ring (9) rotates inside the circular ring using the circular groove.

2. The soil heavy metal pollution remediation device according to claim 1, characterized in that: The top of the tank (1) is fixed with two frames (7), and the top of the two frames (7) is equipped with a drive unit (8), and the top of the rotating rod (4) is connected to the output end of the drive unit (8).

3. The soil heavy metal pollution remediation device according to claim 1, characterized in that: The top of the rotating drum (2) is provided with an annular groove (202), and the positioning sleeve (6) is rotatably sleeved on the outside of the annular groove (202), and the surface of the positioning sleeve (6) is connected to the inner wall of the tank body (1) by a connecting rod (601).

4. The soil heavy metal pollution remediation device according to claim 1, characterized in that: The outer circumference of the tank (1) is fixed with two side frames (11), and the inner side wall of the tank (1) is provided with multiple slots (103). The inside of the tank (1) is connected to the inside of the side frames (11) through the slots (103).

5. The soil heavy metal pollution remediation device according to claim 4, characterized in that: The top surface of the side frame (11) is fixed with top edges (12) on both sides. The top of the side frame (11) is provided with a pressure plate (13), and the bottom surfaces of both ends of the pressure plate (13) are fixed with vertical rods (14) that penetrate the top edges (12). The surface of the vertical rod (14) is fitted with an elastic element (15), which is connected between the bottom surface of the pressure plate (13) and the top surface of the top edge (12). The bottom end of the vertical rod (14) is screwed with a nut (16), and the bottom surface of the side frame (11) is screwed with a screw (17).

6. The soil heavy metal pollution remediation device according to claim 5, characterized in that: The bottom surface of the pressure plate (13) is connected to the filter plate (18) by the pressure rod. The filter plate (18) corresponds to the slot (103), and the top surface of the side frame (11) is provided with a notch corresponding to the filter plate (18).

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