A soil heavy metal remediation device capable of magnetic separation

Abstract

This utility model relates to the field of soil remediation technology, specifically disclosing a magnetically separable soil heavy metal remediation device, comprising: a support frame and a reaction mechanism mounted on the top of the support frame, a stirring mechanism mounted inside the reaction mechanism, and a magnetic separation mechanism mounted inside the support frame; the reaction mechanism includes a reaction tank, with a stirring paddle rotatably mounted on the inner wall of the reaction tank, and a feeding hopper connected to the bottom of the reaction tank; the stirring mechanism includes a rotating rod rotatably mounted at the center position inside the reaction tank, a support rod fixedly mounted around the rotating rod, and stirring rods fixedly mounted at the top and bottom of the support rod; this utility model can continuously push the material at the edge towards the center during the stirring process, achieving a rolling effect, enabling rapid mixing of soil, remediation agent, and water, accelerating the reaction speed, and improving the soil remediation effect.

Description

Technical Field

[0001] This utility model belongs to the field of soil remediation technology, specifically relating to a soil heavy metal remediation device that can magnetically separate heavy metals. Background Technology

[0002] Heavy metal pollution in soil has become a current environmental problem. Soil is at risk of exceeding the standard for heavy metals, with cadmium and lead pollution being particularly prominent. Heavy metals in soil have the characteristics of strong chemical stability and high bioaccumulation. They can accumulate through the food chain and cause health risks such as Itai-itai disease and cancer. Soil remediation is the process of treating contaminated soil through physical, chemical or biological means to restore its ecological function and safety.

[0003] However, current soil heavy metal remediation devices typically require mixing the soil and remediation agent during use. However, traditional mixing methods are relatively simple, which prevents the soil and remediation agent from mixing and reacting quickly, thus reducing the soil remediation effect. Therefore, the applicant proposes a magnetically separable soil heavy metal remediation device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a magnetically separable soil heavy metal remediation device. During the stirring process, multiple stirring paddles on the inner wall of the reaction tank can be rotated. The stirring paddles can make the materials roll, which can accelerate the mixing speed between the soil and the remediation agent, effectively shorten the mixing time, and improve the soil remediation effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A magnetically separable soil heavy metal remediation device includes:

[0007] A support frame and a reaction mechanism mounted on top of the support frame, as well as a stirring mechanism mounted inside the reaction mechanism and a magnetic separation mechanism mounted inside the support frame;

[0008] The reaction mechanism includes a reaction vessel, an agitator is rotatably mounted on the inner wall of the reaction vessel, and a feed hopper is connected to the bottom of the reaction vessel;

[0009] The stirring mechanism includes a rotating rod rotatably mounted at the center of the reaction vessel, a support rod fixedly mounted around the rotating rod, a stirring rod fixedly mounted at the top and bottom of the support rod, and a transmission ring corresponding to the stirring paddle fixedly mounted at the top of the support rod.

[0010] The magnetic separation mechanism includes a separation box fixedly installed inside the support frame, and a permanent magnet roller corresponding to the feeding hopper is rotatably installed inside the separation box.

[0011] Preferably, a gear is fixedly installed at one end of the stirring paddle, and teeth that mesh with the gear are evenly distributed on the top of the transmission ring.

[0012] Preferably, a sealing plate corresponding to the feed hopper is inserted and installed on one side of the reaction vessel, and one side of the sealing plate is fixed to the surface of the reaction vessel by a fixing knob.

[0013] Preferably, a scraper is fixedly installed on the periphery of the rotating rod, and the scraper is attached to the bottom of the reaction vessel.

[0014] Preferably, a first driving component is fixedly installed at the bottom of the reaction vessel, and the output end of the first driving component is fixedly connected to the rotating rod.

[0015] Preferably, a second driving component is fixedly installed at the front end of the separation box, and the output end of the second driving component is fixedly connected to the permanent magnet roller.

[0016] Preferably, the surface of the permanent magnet roller is provided with a guide groove, and a scraper (45) extending into the guide groove (44) is fixedly installed inside the separation box (41).

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) This utility model is equipped with a reaction mechanism and a stirring mechanism working together. During the stirring process, the stirring mechanism can drive multiple stirring paddles on the inner wall of the reaction tank to rotate using the transmission ring. The stirring paddles are fan-shaped and can form different stirring methods with the stirring rod during the rotation. At the same time, the stirring paddles can continuously push the material at the edge towards the center, which can achieve the effect of material tumbling, so that the soil can be quickly mixed with the remediation agent and water, which can effectively speed up the reaction and improve the soil remediation effect.

[0019] (2) This utility model is equipped with a magnetic separation mechanism, which can introduce the mud formed by mixing in the reaction mechanism onto the permanent magnet drum. The magnetic remediation agent particles that can adsorb heavy metals can be separated from the mud under the action of the magnetic field, realizing the purification of polluted soil and the recycling and reuse of the remediation agent, bringing more convenience to the user. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the reaction mechanism structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the reaction vessel of this utility model;

[0023] Figure 4 This is a schematic diagram of the stirring mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the magnetic separation mechanism of this utility model;

[0025] Figure 6 This is a cross-sectional view of the separation box of this utility model;

[0026] In the diagram: 1. Reaction mechanism; 11. Reaction tank; 12. Feed hopper; 13. Sealing plate; 14. Stirring paddle; 15. Gear; 16. Fixing knob; 2. Stirring mechanism; 21. Rotating rod; 22. Support rod; 23. Stirring rod; 24. Transmission ring; 25. Gear; 26. First driving component; 27. Scraper; 3. Support frame; 4. Magnetic separation mechanism; 41. Separation box; 42. Second driving component; 43. Permanent magnet drum; 44. Guide channel; 45. Scraper rack. Detailed Implementation

[0027] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example 1:

[0031] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a magnetically separable soil heavy metal remediation device includes:

[0032] The support frame 3 and the reaction mechanism 1 assembled on the top of the support frame 3, as well as the stirring mechanism 2 assembled inside the reaction mechanism 1 and the magnetic separation mechanism 4 assembled inside the support frame 3;

[0033] The reaction mechanism 1 includes a reaction vessel 11, an agitator 14 is rotatably mounted on the inner wall of the reaction vessel 11, and a feed hopper 12 is connected to the bottom of the reaction vessel 11.

[0034] The stirring mechanism 2 includes a rotating rod 21 rotatably installed at the center of the reaction vessel 11, a support rod 22 fixedly installed around the rotating rod 21, a stirring rod 23 fixedly installed at the top and bottom of the support rod 22, and a transmission ring 24 corresponding to the stirring paddle 14 fixedly installed at the top of the support rod 22.

[0035] The magnetic separation mechanism 4 includes a separation box 41 fixedly installed inside the support frame 3, and a permanent magnet roller 43 corresponding to the feed hopper 12 is rotatably installed inside the separation box 41.

[0036] As can be seen from the above, when using the product, the contaminated soil, remediation agent and water are introduced into the reaction tank 11 in the corresponding proportion. The rotation of the rotating rod 21 can drive the support rod 22 and the stirring rod 23 to rotate, which can mix the materials into a slurry. The remediation agent uses magnetic nanoparticles, which can efficiently adsorb and fix heavy metal ions in the soil.

[0037] When the support rod 22 rotates, it can drive the transmission ring 24 to rotate, which can synchronously drive the stirring paddle 14 to rotate. The stirring paddle 14 is fan-shaped, which can push the material at the edge to the center during the rotation and stirring of the mud, which can achieve the effect of material tumbling, so that the soil can be quickly mixed with the remediation agent and water, which can effectively speed up the reaction and improve the soil remediation effect.

[0038] By feeding the slurry formed after the reaction into the separation box 41 through the hopper 12, the slurry can come into contact with the permanent magnet drum 43. Utilizing the magnetic force of the permanent magnet drum 43, the magnetic nanoparticles that have adsorbed heavy metals can be adsorbed, allowing the slurry to flow downwards along the left side of the permanent magnet drum 43. By driving the permanent magnet drum 43 to rotate clockwise, the magnetic nanoparticles can move in the opposite direction of the slurry flow and be separated from the slurry under the action of the magnetic field, realizing the purification of polluted soil and the recycling and reuse of remediation agents, bringing more convenience to the user.

[0039] Depend on Figure 3 and Figure 4 It can be seen that a gear 15 is fixedly installed at one end of the stirring paddle 14, and teeth 25 that mesh with the gear 15 are evenly distributed on the top of the transmission ring 24.

[0040] As can be seen from the above, when the transmission ring 24 rotates, the meshing action between the teeth 25 and the gear 15 can drive the gear 15 to rotate, which can synchronously drive the stirring paddle 14 to rotate. By driving multiple stirring paddles 14 to rotate at the same time, the stirring effect on the material is improved.

[0041] For details, please refer to Figure 3 As shown, a sealing plate 13 corresponding to the feed hopper 12 is inserted and installed on one side of the reaction vessel 11, and one side of the sealing plate 13 is fixed to the surface of the reaction vessel 11 by a fixing knob 16.

[0042] As can be seen from the above, by inserting the sealing plate 13 into one side of the reaction tank 11, the feeding hopper 12 can be sealed. The sealing plate 13 can be easily fixed by the fixing knob 16 to prevent the sealing plate 13 from becoming loose, so that the material can be stirred and mixed in the reaction tank 11. By pulling the sealing plate 13 outward, the reacted material can be discharged into the separation box 41 through the feeding hopper 12 for magnetic separation.

[0043] For details, please refer to Figure 4 As shown, a scraper 27 is fixedly installed on the periphery of the rotating rod 21, and the scraper 27 is attached to the bottom of the reaction vessel 11.

[0044] As can be seen from the above, when the rotating rod 21 rotates, it can drive the scraper 27 to rotate. The scraper 27 is inclined and can scrape up the material that has settled at the bottom of the reaction tank 11, so as to prevent the material from settling and clumping.

[0045] Example 2:

[0046] refer to Figure 4 As shown, a first driving component 26 is fixedly installed at the bottom of the reaction vessel 11, and the output end of the first driving component 26 is fixedly connected to the rotating rod 21.

[0047] As can be seen from the above, the first driving component 26 is an electric motor, which can provide power to the rotating rod 21 and make it easy to drive the rotating rod 21 to rotate.

[0048] refer to Figure 5 As shown, a second driving component 42 is fixedly installed at the front end of the separation box 41, and the output end of the second driving component 42 is fixedly connected to the permanent magnet drum 43.

[0049] As can be seen from the above, the second driving component 42 serves as a drive motor, which can provide power to the permanent magnet drum 43 and facilitate its rotation.

[0050] refer to Figure 6 As shown, the surface of the permanent magnet roller 43 is provided with a guide groove 44, and a scraper 45 extending into the guide groove 44 is fixedly installed inside the separation box 41.

[0051] As can be seen from the above, the guide channel 44 allows the mud to flow downwards evenly, while increasing the contact area between the mud and the permanent magnet drum 43. This allows for the rapid adsorption of magnetic nanoparticles. By rotating the adsorbed magnetic nanoparticles clockwise along the permanent magnet drum 43, the scraper 45 can scrape the magnetic nanoparticles in the guide channel 44 off, facilitating collection, recycling, and reuse, thus reducing resource waste.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A soil remediation device capable of magnetically separating heavy metals, characterized in that, include: The support frame (3) and the reaction mechanism (1) assembled on the top of the support frame (3), as well as the stirring mechanism (2) assembled inside the reaction mechanism (1) and the magnetic separation mechanism (4) assembled inside the support frame (3); The reaction mechanism (1) includes a reaction tank (11), a stirring paddle (14) is rotatably installed on the inner wall of the reaction tank (11), and a feeding hopper (12) is connected to the bottom of the reaction tank (11). The stirring mechanism (2) includes a rotating rod (21) rotatably installed at the center of the reaction vessel (11), a support rod (22) fixedly installed around the rotating rod (21), a stirring rod (23) fixedly installed at the top and bottom of the support rod (22), and a transmission ring (24) corresponding to the stirring paddle (14) fixedly installed at the top of the support rod (22). The magnetic separation mechanism (4) includes a separation box (41) fixedly installed inside the support frame (3), and a permanent magnet roller (43) corresponding to the feed hopper (12) is rotatably installed inside the separation box (41).

2. The magnetically separable soil heavy metal remediation device according to claim 1, characterized in that: A gear (15) is fixedly installed at one end of the stirring paddle (14), and teeth (25) that mesh with the gear (15) are evenly distributed on the top of the transmission ring (24).

3. The magnetically separable soil heavy metal remediation device according to claim 1, characterized in that: A sealing plate (13) corresponding to the feed hopper (12) is inserted and installed on one side of the reaction vessel (11), and one side of the sealing plate (13) is fixed to the surface of the reaction vessel (11) by a fixing knob (16).

4. The magnetically separable soil heavy metal remediation device according to claim 1, characterized in that: A scraper (27) is fixedly installed on the periphery of the rotating rod (21), and the scraper (27) is attached to the bottom of the reaction vessel (11).

5. The magnetically separable soil heavy metal remediation device according to claim 1, characterized in that: The bottom of the reaction vessel (11) is fixedly installed with a first driving component (26), and the output end of the first driving component (26) is fixedly connected to the rotating rod (21).

6. The magnetically separable soil heavy metal remediation device according to claim 1, characterized in that: The front end of the separation box (41) is fixedly installed with a second driving component (42), and the output end of the second driving component (42) is fixedly connected to the permanent magnet roller (43).

7. The magnetically separable soil heavy metal remediation device according to claim 1, characterized in that: The permanent magnet roller (43) has a guide groove (44) on its surface, and a scraper (45) extending into the guide groove (44) is fixedly installed inside the separation box (41).

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