A deep mixing and stirring device for waste rare earth mine soil improvement

By designing a deep loosening and mixing device with a rotating roller and spray pipe equipped with loosening spiral blades, the problem of low efficiency in large-area loosening of traditional devices has been solved, achieving efficient soil improvement and acidity adjustment.

CN224356661UActive Publication Date: 2026-06-16JIANGXI AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI AGRICULTURAL UNIVERSITY
Filing Date
2025-07-22
Publication Date
2026-06-16

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Abstract

The utility model relates to soil deep loosening device technical field, specifically disclose a kind of deep loosening stirring device for abandoned rare earth mine soil improvement, comprising: stirring mechanism, stirring mechanism includes first mounting bracket and fixedly installed the link rod on the lower surface of first mounting bracket, spraying mechanism, spraying mechanism includes the top plate fixedly installed between two first mounting brackets, top plate below fixedly installed with containing box;The device is installed with the rotating roller of loosening soil helical blade by being set on rotating arm, can be rotated by starting drive motor rotating roller to utilize loosening soil helical blade to the soil is fully stirred and deep loosening operation, and loosening soil helical blade compared with vertical stirring device can be processed to more large area of soil at a time, simultaneously, the device also carries the containing box containing desulfurization gypsum solution, and using pump and with several spray heads spraying pipe can be fully sprayed after the soil stirred by loosening soil helical blade.
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Description

Technical Field

[0001] This utility model belongs to the technical field of deep soil loosening devices, specifically relating to a deep loosening and mixing device for soil improvement in abandoned rare earth mines. Background Technology

[0002] Abandoned rare earth mines require ecological restoration. Deep loosening and mixing of the mine soil (usually combined with amendments or remediation materials) is a key step in the ecological restoration of the mining area. Reshaping the soil layer can mix the bottom uncontaminated soil with the top layer, dilute the concentration of pollutants (such as reducing the content of heavy metals by 20%-40%), and break the water-impermeable layer to prevent water accumulation and secondary salinization.

[0003] Traditional deep soil loosening and mixing devices can only use vertical drilling and mixing equipment for soil loosening operations. This type of device cannot loosen and mix a large area of ​​soil at once. Furthermore, after deep loosening and mixing, some lime powder needs to be sprinkled on the soil to adjust the soil's pH level. The entire operation process is relatively cumbersome and inefficient.

[0004] To address the problems raised in the background art, those skilled in the art have proposed a deep loosening and mixing device for soil improvement in abandoned rare earth mines.

[0005] The information disclosed above in this background section is only intended to enhance the understanding of the background section of this utility model, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a deep loosening and mixing device for soil improvement in waste rare earth mines, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A deep loosening and mixing device for soil improvement in abandoned rare earth mines includes:

[0009] A mixing mechanism includes a first mounting frame and a connecting rod fixedly mounted on the lower surface of the first mounting frame. A second mounting frame is fixedly connected to the end of the connecting rod away from the first mounting frame. There are two first mounting frames and two second mounting frames. A second movable shaft is provided on the second mounting frame. A rotating arm is movably mounted on the circumferential side of the second movable shaft. A drive motor is fixedly mounted on one end of the rotating arm. A rotating roller is fixedly connected to the output end of the drive motor. A soil loosening spiral blade is fixedly provided on the circumferential side of the rotating roller.

[0010] A spraying mechanism includes a top plate fixedly installed between two first mounting brackets, a receiving box fixedly installed below the top plate, a pump connected to the lower surface of the receiving box, one end of the pump connected to the receiving box, the other end of the pump connected to a delivery pipe, one end of the delivery pipe connected to a branch pipe, and a spraying pipe installed between the two second mounting brackets.

[0011] Preferably, the spray pipe is connected to the branch pipe, and a plurality of spray nozzles are provided on the periphery of the spray pipe.

[0012] Preferably, the container has an inlet on one side, a sealing plug is provided on the inlet, and the container contains desulfurized gypsum solution.

[0013] Preferably, the top plate is provided with a movable hinge, and a first rotating plate is hinged to the movable hinge.

[0014] Preferably, a telescopic cylinder is fixedly installed at one end of the first rotating plate, and one end of the telescopic cylinder includes a telescopic shaft.

[0015] Preferably, one end of the rotating arm is provided with a first movable shaft, a second rotating plate is movably mounted on the circumferential side of the first movable shaft, and one end of the telescopic shaft is connected to the second rotating plate.

[0016] Preferably, a plurality of mounting plates are fixedly mounted on the upper surface of the first mounting bracket, and a plurality of mounting holes are provided on the mounting plates.

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

[0018] (1) This utility model uses a rotating roller with a soil loosening spiral blade installed on a rotating arm. The rotating roller can be driven by starting a drive motor to rotate, thereby using the soil loosening spiral blade to fully mix and loosen the soil. Compared with a vertical mixing device, the soil loosening spiral blade can process a larger area of ​​soil at one time. At the same time, this device is also equipped with a container holding a desulfurized gypsum solution. The soil mixed by the soil loosening spiral blade can be fully sprayed using a pump and a spray pipe with several nozzles. After the gypsum slurry is evenly sprayed on the surface of the mine pit or injected into the soil, it can improve acidity, passivate heavy metals, and strengthen the structure.

[0019] (2) By setting an installation plate with mounting holes, this utility model can fix the device on a movable tracked vehicle, thereby driving the vehicle to work on the soil to be treated, thereby further improving work efficiency. Furthermore, by setting a telescopic cylinder, the rotating arm can be driven to swing to a certain extent, thereby controlling the height of the loosening spiral blades on the rotating roller, thus allowing the depth of loosening and mixing to be controlled according to the needs.

[0020] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0021] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a front view of the present invention;

[0023] Figure 3 This is the left view of the present invention;

[0024] Figure 4 This is a three-dimensional structural diagram of the present invention viewed from below.

[0025] In the diagram: 1. First mounting bracket; 2. Mounting plate; 3. Mounting hole; 4. Connecting rod; 5. Second mounting bracket; 6. Movable hinge; 7. First rotating plate; 8. Telescopic cylinder; 9. Telescopic shaft; 10. Second rotating plate; 11. First movable shaft; 12. Rotating arm; 13. Second movable shaft; 14. Drive motor; 15. Rotating roller; 16. Soil loosening spiral blade; 17. Top plate; 18. Receiving box; 19. Sealing plug; 20. Pump; 21. Delivery pipe; 22. Branch pipe; 23. Spray pipe; 24. Spray head. Detailed Implementation

[0026] 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.

[0027] Example 1:

[0028] Please see Figures 1-4 As shown, a deep loosening and mixing device for soil improvement in abandoned rare earth mines includes:

[0029] The mixing mechanism includes a first mounting frame 1 and a connecting rod 4 fixedly mounted on the lower surface of the first mounting frame 1. A second mounting frame 5 is fixedly connected to the end of the connecting rod 4 away from the first mounting frame 1. There are two first mounting frames 1 and two mounting frames 5. A second movable shaft 13 is provided on the second mounting frame 5. A rotating arm 12 is movably mounted on the circumference of the second movable shaft 13. A drive motor 14 is fixedly mounted on one end of the rotating arm 12. A rotating roller 15 is fixedly connected to the output end of the drive motor 14. A soil loosening spiral blade 16 is fixedly provided on the circumference of the rotating roller 15.

[0030] The spraying mechanism includes a top plate 17 fixedly installed between two first mounting brackets 1, a receiving box 18 fixedly installed below the top plate 17, a pump 20 connected to the lower surface of the receiving box 18, one end of the pump 20 being connected to the receiving box 18, and the other end of the pump 20 being connected to a delivery pipe 21, one end of the delivery pipe 21 being connected to a branch pipe 22, and a spraying pipe 23 installed between the two second mounting brackets 5.

[0031] Specifically, the spray pipe 23 is connected to the branch pipe 22, and several nozzles 24 are provided on the periphery of the spray pipe 23.

[0032] Specifically, the container 18 has an inlet on one side, and a sealing plug 19 is provided on the inlet. The container 18 contains desulfurized gypsum solution.

[0033] As can be seen from the above, this device, by installing a rotating roller 15 with a soil-loosening spiral blade 16 on the rotating arm 12, can drive the rotating roller 15 to rotate by starting the drive motor 14, thereby using the soil-loosening spiral blade 16 to fully mix and deeply loosen the soil. Compared with a vertical mixing device, the soil-loosening spiral blade 16 can process a larger area of ​​soil at one time. At the same time, this device is also equipped with a container 18 containing desulfurized gypsum solution. The pump 20 and the spray pipe 23 with several nozzles 24 can fully spray the soil mixed by the soil-loosening spiral blade 16. After the gypsum slurry is evenly sprayed on the surface of the mine pit or injected into the soil, it can play a role in improving acidity, passivating heavy metals, and strengthening the structure.

[0034] Example 2:

[0035] Please see Figures 1-4 As shown, a movable hinge 6 is provided on the top plate 17, and a first rotating plate 7 is hinged to the movable hinge 6.

[0036] Specifically, a telescopic cylinder 8 is fixedly installed at one end of the first rotating plate 7, and one end of the telescopic cylinder 8 includes a telescopic shaft 9.

[0037] Specifically, a first movable shaft 11 is provided at one end of the rotating arm 12, and a second rotating plate 10 is movably installed on the side of the first movable shaft 11. One end of the telescopic shaft 9 is connected to the second rotating plate 10.

[0038] Specifically, a number of mounting plates 2 are fixedly mounted on the upper surface of the first mounting bracket 1, and a number of mounting holes 3 are provided on the mounting plates 2.

[0039] As can be seen from the above, this utility model can fix the device on a movable tracked vehicle by setting the mounting plate 2 with mounting holes 3, thereby driving the vehicle to work on the soil to be treated, thus further improving work efficiency. Furthermore, by setting the telescopic cylinder 8, the rotating arm 12 can be driven to swing to a certain extent, thereby controlling the height of the loosening spiral blade 16 on the rotating roller 15, thus allowing the depth of loosening and mixing to be controlled according to the requirements.

[0040] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0041] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0046] 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 deep loosening and mixing device for soil improvement in abandoned rare earth mines, characterized in that, include: A stirring mechanism, comprising a first mounting frame (1) and a connecting rod (4) fixedly mounted on the lower surface of the first mounting frame (1). A second mounting frame (5) is fixedly connected to one end of the connecting rod (4) away from the first mounting frame (1). There are two of each of the first mounting frame (1) and the second mounting frame (5). A second movable shaft (13) is provided on the second mounting frame (5). A rotating arm (12) is movably mounted on the periphery of the second movable shaft (13). A drive motor (14) is fixedly mounted on one end of the rotating arm (12). A rotating roller (15) is fixedly connected to the output end of the drive motor (14). A soil loosening spiral blade (16) is fixedly provided on the periphery of the rotating roller (15). The spraying mechanism includes a top plate (17) fixedly installed between two first mounting brackets (1), a receiving box (18) fixedly installed below the top plate (17), a pump (20) connected to the lower surface of the receiving box (18), one end of the pump (20) being connected to the receiving box (18), the other end of the pump (20) being connected to a conveying pipe (21), one end of the conveying pipe (21) being connected to a branch pipe (22), and a spraying pipe (23) installed between the two second mounting brackets (5).

2. The deep loosening and mixing device for soil improvement in abandoned rare earth mines according to claim 1, characterized in that: The spray pipe (23) is connected to the branch pipe (22), and a number of nozzles (24) are provided on the periphery of the spray pipe (23).

3. The deep loosening and mixing device for soil improvement in abandoned rare earth mines according to claim 1, characterized in that: The container (18) has an addition port on one side, and a sealing plug (19) is provided on the addition port. The container (18) contains desulfurized gypsum solution.

4. The deep loosening and mixing device for soil improvement in abandoned rare earth mines according to claim 1, characterized in that: The top plate (17) is provided with a movable hinge (6), and a first rotating plate (7) is hinged to the movable hinge (6).

5. The deep loosening and mixing device for soil improvement in abandoned rare earth mines according to claim 4, characterized in that: A telescopic cylinder (8) is fixedly installed at one end of the first rotating plate (7), and one end of the telescopic cylinder (8) includes a telescopic shaft (9).

6. The deep loosening and mixing device for soil improvement in abandoned rare earth mines according to claim 5, characterized in that: The rotating arm (12) is provided with a first movable shaft (11) at one end, and a second rotating plate (10) is movably installed on the circumferential side of the first movable shaft (11). One end of the telescopic shaft (9) is connected to the second rotating plate (10).

7. The deep loosening and mixing device for soil improvement in abandoned rare earth mines according to claim 1, characterized in that: A plurality of mounting plates (2) are fixedly mounted on the upper surface of the first mounting bracket (1), and a plurality of mounting holes (3) are provided on the mounting plates (2).