Heavy metal contaminated soil remediation plant disposal device
The design of the fabric assembly and quick-release assembly solved the problem of uneven drug concentration, thereby improving the reaction rate of heavy metal stabilization and facilitating the maintenance of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN LILU ENVIRONMENT CONSTR
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-23
AI Technical Summary
In existing technologies, continuous feeding at fixed points results in a significantly higher concentration of the drug solution compared to other areas, affecting the rate of heavy metal stabilization reaction.
It adopts a fabric assembly and a quick-release assembly to achieve multi-point feeding and convenient disassembly. The combination of limit rod and rotating plate ensures uniform distribution of the agent, improves the reaction rate, and supports quick replacement or cleaning of the fabric assembly.
This method achieves uniform distribution of the reagents, increases the rate of heavy metal stabilization reaction, avoids the problem of excessively high reagent concentrations, and facilitates the maintenance and repair of the equipment.
Smart Images

Figure CN224388722U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of remediation plant treatment, and more particularly to a treatment device for remediation plants in heavy metal contaminated soil. Background Technology
[0002] This treatment device can efficiently treat plants for remediation of heavy metal contaminated soil. The plant is crushed by a crushing system, and the stirring structure is used to mix chelating agents, stabilizers and other agents evenly with the crushed plant to promote the leaching or fixation of heavy metals. Combined with a solid-liquid separation system, the heavy metals are separated and recovered, avoiding secondary pollution and ensuring the safe and efficient treatment of plants for soil remediation.
[0003] In existing technologies, after the soil remediation plants are crushed, the operator sends the crushed plants to a mixer and adds solid stabilizing agents (such as lime and sulfides) to induce the heavy metals in the plants to form low-soluble compounds. However, in this process, the mixer is often used for single-point fixed feeding. The continuous feeding at the fixed point makes the concentration of the solution in that area significantly higher than in other areas, affecting the heavy metal stabilization reaction rate. Therefore, a treatment device for heavy metal contaminated soil remediation plants is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a treatment device for phytoremediation of heavy metal contaminated soil, which aims to improve the problem in the prior art that "continuous feeding at fixed points causes the concentration of the solution in that area to be significantly higher than that in other areas, affecting the rate of heavy metal stabilization reaction".
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a treatment device for phytoremediation of heavy metal contaminated soil, comprising a barrel body, a support frame fixedly connected to the upper part of the barrel body, a motor mounted on the upper surface of the support frame, a stirring shaft fixedly connected to the output shaft of the motor via a coupling, the stirring shaft penetrating and rotatably connected to the inner wall of the support frame, and a cloth assembly detachably connected to the stirring shaft via a quick-release assembly; the cloth assembly includes a material receiving hopper, a support shaft rotatably connected to the lower part of the inner wall of the material receiving hopper, and a support shaft fixedly connected to the outer wall of the support shaft. The device includes a feeding rod with a feeding groove on its outer wall. A disc is fixedly connected to the front surface of a support shaft, and baffles are fixedly connected to both the upper and lower ends of the disc. A second limiting rod is fixedly connected to the upper part of the front surface of the disc near the left side, and a first limiting rod is fixedly connected to the lower part of the front surface of the disc near the right side. A limiting plate is fixedly connected to the upper surface of the barrel body, and multiple sets of grooves that match the baffles are formed on the upper surface of the limiting plate. Multiple sets of support rods are fixedly connected to the outer wall of the limiting plate, and a rotating plate is rotatably connected to the outer wall of the support rods.
[0006] As a further description of the above technical solution:
[0007] The outer wall of the support rod is elastically connected to the front surface of the rotating plate by a torsion spring, and the hopper is configured as a truncated cone shape that gradually narrows from top to bottom.
[0008] As a further description of the above technical solution:
[0009] The quick-release assembly includes a connecting box, the rear surface of which is fixedly connected to the front of the outer wall of the stirring shaft. An insert plate is inserted into the inner wall of the connecting box. The front surface of the insert plate is fixedly connected to the rear surface of the hopper. The hopper is fixedly connected to the front surface of the insert plate. A slot is provided on the right surface of the insert plate.
[0010] As a further description of the above technical solution:
[0011] A support box is fixedly connected to the right surface of the connecting box. A plug is slidably connected to the inner wall of the support box. The outer walls of the plug are all inserted into the inner walls of the connecting box and the slot. A slope is provided on the left surface of the plug near the front end.
[0012] As a further description of the above technical solution:
[0013] A connecting rod is fixedly connected to the right surface of the insert block. The outer wall of the connecting rod is slidably connected to the inner wall of the support box. A fixing plate is fixedly connected to the right surface of the connecting rod. The fixing plate is L-shaped.
[0014] As a further description of the above technical solution:
[0015] The insert block and the support box are elastically connected by a support spring.
[0016] As a further description of the above technical solution:
[0017] The support box and the upper inner wall of the fixing plate are connected together by a fixing frame. The fixing frame is U-shaped. The upper surface of the support box is fixedly connected to a fixing rod. The fixing rod is T-shaped. The inner wall of the fixing frame is slidably connected to the outer wall of the fixing rod.
[0018] As a further description of the above technical solution:
[0019] The fixing frame and the fixing rod are elastically connected by a tension spring.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the cloth assembly enables the device to rotate when the limiting rod strikes the rotating plate, causing the disc to rotate, which in turn drives the feeding trough to rotate. This improves the device from one-point feeding to one that can rotate around the barrel and feed at multiple points simultaneously, preventing excessively high concentrations of reagents at a single location and improving the balance of heavy metal stabilization to increase the reaction rate.
[0022] 2. In this utility model, the quick-release component allows the operator to separate the connecting box from the insertion plate by pulling the fixing bracket and then the fixing plate when the fabric component is damaged or the hopper needs to be cleaned. This makes it easier for the operator to remove the entire fabric component for replacement or cleaning. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;
[0024] Figure 2 This is a three-dimensional structural diagram of the fabric component in this utility model;
[0025] Figure 3 This is a three-dimensional cross-sectional view of the fabric component in this utility model;
[0026] Figure 4 This is a three-dimensional structural disassembly diagram of the quick-release component in this utility model;
[0027] Figure 5 This is a three-dimensional cross-sectional diagram of the quick-release component in this utility model.
[0028] Legend:
[0029] 1. Barrel body; 2. Support frame; 3. Motor; 4. Stirring shaft; 5. Material feeding assembly; 6. Quick release assembly; 51. Feeding hopper; 52. Feeding rod; 53. Support shaft; 54. Disc; 55. Baffle; 56. Limiting rod one; 57. Limiting rod two; 58. Support rod; 59. Rotating plate; 510. Limiting disc; 511. Torsion spring; 61. Connecting box; 62. Insertion plate; 63. Slot; 64. Support box; 65. Insert block; 66. Connecting rod; 67. Fixing plate; 68. Support spring; 69. Fixing frame; 610. Pull spring; 611. Fixing rod. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figures 1-3 This utility model provides an embodiment of a treatment device for phytoremediation of heavy metal contaminated soil, comprising a barrel 1 for holding phytoremediation plant fragments, a support frame 2 for supporting a motor 3 fixedly connected to the upper part of the barrel 1, a motor 3 for rotating a stirring shaft 4 mounted on the upper surface of the support frame 2, the output shaft of the motor 3 being fixedly connected to a stirring shaft 4 via a coupling for driving a cloth assembly 5 to rotate while simultaneously stirring the phytoremediation plant fragments, the stirring shaft 4 penetrating and rotatably connected to the inner wall of the support frame 2, the stirring shaft 4 being detachably connected to a cloth assembly 5 for multi-point application during cloth application via a quick-release assembly 6 for easy disassembly by the operator, the cloth assembly 5 including a hopper 51 for filling solid stabilizing agents, a support shaft 53 for driving a feeding rod 52 to rotate rotatably connected to the lower part of the inner wall of the hopper 51, the feeding rod 52 for driving a feeding trough to rotate fixedly connected to the outer wall of the support shaft 53, the feeding rod 52 having an opening on the outer wall for carrying the solid stabilizer inside the hopper 51 The material feed chute leads to the outside. A disc 54 is fixedly connected to the front surface of the support shaft 53 to drive the support shaft 53 to rotate and support the baffle 55. Both the upper and lower ends of the disc 54 are fixedly connected to baffles 55 that contact the inner wall of the limiting disc 510 to drive the disc 54 to rotate. A limiting rod 57 is fixedly connected to the upper part of the front surface of the disc 54 near the left side, contacting the rotating plate 59 and driving the disc 54 to rotate. A rod 57 is fixedly connected to the lower part of the front surface of the disc 54 near the right side, contacting the rotating plate 59. The disc 54 is rotated by the limiting rod 56. The upper surface of the barrel 1 is fixedly connected to the limiting plate 510, which supports the support shaft 53 and determines the feeding position. The upper surface of the limiting plate 510 has multiple sets of grooves that are compatible with the baffle 55. The outer wall of the limiting plate 510 is fixedly connected to the support rod 58, which supports the rotating plate 59 and the torsion spring 511. The outer wall of the support rod 58 is rotatably connected to the rotating plate 59, which blocks the limiting rod 56 or the limiting rod 57 from causing the disc 54 to rotate.
[0032] Reference Figures 1-3The outer wall of the support rod 58 and the front surface of the rotating plate 59 are elastically connected by a torsion spring 511 for continuously supporting the rotating plate 59 and keeping it upright. The hopper 51 is configured as a truncated cone shape that tapers from top to bottom. The quick-release assembly 6 includes a connecting box 61 for accommodating the insertion plate 62. The rear surface of the connecting box 61 is fixedly connected to the front part of the outer wall of the stirring shaft 4. The inner wall of the connecting box 61 is fitted with an insertion plate 62 for supporting the slot 63 and inserted into the connecting box 61. The front surface of the insertion plate 62 is fixedly connected to the hopper. On the rear surface of 51, the right surface of the insertion plate 62 is provided with a slot 63 for accommodating the insertion block 65. The right surface of the connecting box 61 is fixedly connected to a support box 64 for supporting the insertion block 65 and the fixing rod 611. The inner wall of the support box 64 is slidably connected to the insertion block 65, which is inserted into the inner wall of the slot 63 to fix the connection between the insertion plate 62 and the connecting box 61. The outer walls of the insertion block 65 are all inserted into the inner walls of the connecting box 61 and the slot 63. The left surface of the insertion block 65 is provided with a slope near the front end to make the insertion block 65 a one-way limit.
[0033] Reference Figures 3-5 A connecting rod 66 is fixedly connected to the right surface of the insert 65 to connect the fixing plate 67 and the insert 65. The outer wall of the connecting rod 66 is slidably connected to the inner wall of the support box 64. A fixing plate 67 is fixedly connected to the right surface of the connecting rod 66 to facilitate the operator to pull the insert 65 and can be locked. The fixing plate 67 is L-shaped. The insert 65 and the support box 64 are elastically connected by a support spring 68 to continuously insert the insert 65 into the slot 63. The upper inner wall of the support box 64 and the fixing plate 67 are jointly inserted with a device to prevent fixing. The fixed frame 69 moves the plate 67, fixing the plate 67 to the support box 64, preventing the insert 65 from dislodging from the slot 63 due to vibration. The fixed frame 69 is U-shaped, and a fixed rod 611 is fixedly connected to the upper surface of the support box 64 to limit the movement of the fixed frame 69. The fixed rod 611 is T-shaped, and the inner wall of the fixed frame 69 is slidably connected to the outer wall of the fixed rod 611. The fixed frame 69 and the fixed rod 611 are elastically connected by a tension spring 610 to stably insert the fixed frame 69 into the inner wall of the fixed plate 67 and the support box 64.
[0034] Working principle: First, sufficient solid stabilizing agent is filled into the hopper 51. Then, motor 3 is turned on. The output shaft of motor 3 drives the stirring shaft 4 to rotate, which in turn drives the connecting box 61 and the insertion plate 62 to move, causing the hopper 51 to rotate around the stirring shaft 4. During the rotation of the hopper 51, the limiting rod 56 contacts the rotating plate 59. When in contact, the limiting rod 56 is forced to rotate the disc 54. With the cooperation of the rotating plate 59 and the torsion spring 511, the disc 54 will rotate. The disc 54 rotates exactly 90°, causing the baffle 55 to insert into the inner wall of the limiting disc 510. Meanwhile, the rotating feed rod 52 of the disc 54 rotates. Since the outer wall of the feed rod 52 has a feed groove, the feed groove will carry the solid stabilizer out of the receiving hopper 51 when the feed rod 52 rotates. Then the receiving hopper 51 continues to move, causing the baffle 55 inserted into the inner wall of the limiting disc 510 to be squeezed, which drives the disc 54 to rotate a second time. At this time, the limiting rod 57 rotates to the lower position, and then the above operation is repeated.
[0035] When the fabric assembly 5 needs cleaning, first pull the fixing bracket 69. The fixing bracket 69 moves along the lower outer wall of the fixing rod 611. Continuously pull the fixing bracket 69 to disengage it from the inner wall of the support box 64 and the fixing plate 67. Then pull the fixing plate 67. The movement of the fixing plate 67 drives the connecting rod 66 to move the insert block 65. After the insert block 65 disengages from the slot 63 inside the insertion plate 62, release the fixing bracket 69 and remove the fabric assembly 5. Then pull the fixing bracket 69 again and insert the cleaned fabric assembly 5. After the insertion plate 62 contacts the slope of the insert block 65, it will squeeze the insert block 65 and cause it to shift. When fully inserted, the insert block 65 is pushed into the slot 63 by the support spring 68. Then release the fixing bracket 69. The fixing bracket 69 is inserted into the inner wall of the fixing plate 67 and the support box 64 by the pull spring 610, completing the operation.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A treatment device for phytoremediation of heavy metal contaminated soil, comprising a tank (1), characterized in that: A support frame (2) is fixedly connected to the upper part of the barrel body (1). A motor (3) is installed on the upper surface of the support frame (2). The output shaft of the motor (3) is fixedly connected to a stirring shaft (4) through a coupling. The stirring shaft (4) passes through and is rotatably connected to the inner wall of the support frame (2). The stirring shaft (4) is detachably connected to a cloth assembly (5) through a quick-release assembly (6). The fabric assembly (5) includes a material receiving hopper (51). A support shaft (53) is rotatably connected to the lower part of the inner wall of the material receiving hopper (51). A feeding rod (52) is fixedly connected to the outer wall of the support shaft (53). A feeding groove is opened on the outer wall of the feeding rod (52). A disc (54) is fixedly connected to the front surface of the support shaft (53). Baffles (55) are fixedly connected to both the upper and lower ends of the disc (54). The upper part of the front surface of the disc (54) is located near the left side. A second limiting rod (57) is fixedly connected. A first limiting rod (56) is fixedly connected to the lower part of the front surface of the disc (54) near the right side. A limiting plate (510) is fixedly connected to the upper surface of the barrel body (1). The upper surface of the limiting plate (510) has multiple sets of grooves that are compatible with the baffle (55). The outer wall of the limiting plate (510) is fixedly connected to multiple sets of support rods (58). The outer wall of the support rods (58) is rotatably connected to a rotating plate (59).
2. The treatment device for phytoremediation of heavy metal contaminated soil according to claim 1, characterized in that: The outer wall of the support rod (58) is elastically connected to the front surface of the rotating plate (59) by a torsion spring (511), and the hopper (51) is configured as a truncated cone shape that gradually narrows from top to bottom.
3. The treatment device for phytoremediation of heavy metal contaminated soil according to claim 1, characterized in that: The quick-release assembly (6) includes a connecting box (61), the rear surface of which is fixedly connected to the front of the outer wall of the stirring shaft (4), and an insert plate (62) is inserted into the inner wall of the connecting box (61). The front surface of the insert plate (62) is fixedly connected to the rear surface of the hopper (51), and a slot (63) is provided on the right surface of the insert plate (62).
4. The treatment device for phytoremediation of heavy metal contaminated soil according to claim 3, characterized in that: A support box (64) is fixedly connected to the right surface of the connecting box (61). A plug (65) is slidably connected to the inner wall of the support box (64). The outer walls of the plug (65) are inserted into the inner walls of the connecting box (61) and the slot (63). A slope is provided on the left surface of the plug (65) near the front end.
5. The treatment device for phytoremediation of heavy metal contaminated soil according to claim 4, characterized in that: A connecting rod (66) is fixedly connected to the right surface of the insert (65). The outer wall of the connecting rod (66) is slidably connected to the inner wall of the support box (64). A fixing plate (67) is fixedly connected to the right surface of the connecting rod (66). The fixing plate (67) is L-shaped.
6. The treatment device for phytoremediation of heavy metal contaminated soil according to claim 5, characterized in that: The insert (65) and the support box (64) are elastically connected by a support spring (68).
7. The treatment device for phytoremediation of heavy metal contaminated soil according to claim 6, characterized in that: The support box (64) and the upper inner wall of the fixing plate (67) are connected together by a fixing frame (69). The fixing frame (69) is U-shaped. The upper surface of the support box (64) is fixedly connected to a fixing rod (611). The fixing rod (611) is T-shaped. The inner wall of the fixing frame (69) is slidably connected to the outer wall of the fixing rod (611).
8. The treatment device for phytoremediation of heavy metal contaminated soil according to claim 7, characterized in that: The fixing frame (69) and the fixing rod (611) are elastically connected by a tension spring (610).