A soil pollution control and remediation device for desertification restoration

Abstract

The application relates to the technical field of soil pollution control, and discloses a soil pollution control and repair device for desertification repair, which comprises a lifting cylinder, a connecting frame is fixedly installed at the top of the lifting cylinder, the connecting frame is connected with an external lifting assembly, a first hollow cavity is arranged in the cylinder wall of the lifting cylinder, three equally-spaced feed inlets are arranged in the cylinder wall of the lifting cylinder from top to bottom, the first gear is engaged to drive the first outer gear ring to rotate at a fixed angle, thereby driving the first cylinder to coaxially and accurately rotate in the first hollow cavity, the second cylinder is driven to synchronously and accurately rotate through linkage of the second gear and the third outer gear ring, synchronous single-channel conduction of the first opening and the feed inlet and the second opening and the discharge outlet and plugging of the remaining positions are realized, linkage switching systems of upper and lower layered channels are formed through high-precision constraint of the 60-degree fixed-angle gear engagement transmission, and the forced feed and discharge channels are one-to-one corresponding and layered and independently conducted.

Description

Technical Field

[0001] This invention relates to the field of soil pollution control technology, specifically to a soil pollution control and remediation device for desertification restoration. Background Technology

[0002] Generally speaking, soil pollution control and remediation in desertification restoration is a key core process in sandy land management and ecological restoration. In the process of sandy land solidification and remediation, it is necessary to fill straw matrix with different particle sizes and appropriate concentrations of remediation solution in layers according to the underground soil structure. By improving soil porosity, solidifying loose sand, and neutralizing soil pollutants, the ecological restoration of desertified land can be achieved. After filling, the sand settles and solidifies naturally to form a stable soil structure to resist wind and sand erosion and improve the soil's water and fertilizer retention capacity. Existing desertification soil remediation devices generally employ a uniform material, fixed angle, and continuous material feeding method during actual construction. Deep sandy soil has fine pores, and the large-particle straw material fed by existing equipment cannot penetrate and adhere to the soil layer, resulting in numerous voids. This leads to incomplete deep remediation, insufficient soil solidification strength, and a high risk of re-loosening and desertification. If fine-particle materials are used to fill the middle and shallow sandy soil layers, problems such as material loss, poor water retention, and insufficient soil bearing capacity arise. Furthermore, the fixed discharge angle of traditional equipment leads to concentrated material accumulation at a single point, easily resulting in voids and uneven material distribution within the remediation cavity. Material from different layers is prone to cross-layer mixing and backflow at the bottom, causing chaotic soil layer remediation and an unbalanced solidification structure. Therefore, this invention aims to provide a soil pollution control and remediation device for desertification remediation that can achieve precise layered material feeding and avoid cross-layer backflow of materials. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a soil pollution control and remediation device for desertification restoration, thereby solving the technical problems in the prior art.

[0004] The objective of this invention can be achieved through the following technical solutions: A soil pollution control and remediation device for desertification remediation, comprising: A lifting cylinder has a connecting frame fixedly installed on its top, which is connected to an external lifting assembly. A first hollow cavity is formed inside the cylinder wall of the lifting cylinder. Three equally spaced feed ports are formed from top to bottom on the cylinder wall of the lifting cylinder. The feed ports are connected to the first hollow cavity. Each feed port is connected to a feed assembly located on one side of the lifting cylinder. A first switching assembly is provided inside the first hollow cavity. The first switching assembly enables a feed assembly to communicate with the inside of the lifting cylinder through a feed port. The discharge cylinder is located at the bottom of the lifting cylinder and is connected to the lifting cylinder. A second hollow cavity is formed inside the cylinder wall of the discharge cylinder. Three equally spaced discharge ports are formed from top to bottom in the cylinder wall of the discharge cylinder. The discharge ports are connected to the second hollow cavity. A second switching component is provided inside the second hollow cavity. The second switching component allows the discharge cylinder to connect to the outside through one discharge port. A lifting plate is slidably installed inside a lifting cylinder. The lifting plate is driven to lift by an electric cylinder fixedly installed at the top of the lifting cylinder. An auger blade is rotatably installed at the bottom of the lifting plate. The auger blade is driven to rotate by a power component. The edge of the auger blade slides in cooperation with the inner wall of the lifting cylinder and the discharge cylinder. A baffle is provided at the bottom of the auger blade and is slidably connected to the inner wall of the discharge cylinder.

[0005] As a further embodiment of the present invention: each of the feeding components includes a feeding pipe, a feeding auger and a feeding pipe. One end of the feeding pipe is fixedly installed on the outer circular surface of the lifting cylinder, and the discharge end of the feeding pipe is connected to the inlet. The feeding auger is rotatably installed inside the feeding pipe. The feeding auger is driven to rotate by a power component. The blade edge of the feeding auger slides against the inner wall of the feeding pipe. The feeding pipe is connected to the feeding pipe, and the feeding end of the feeding pipe is open and facing upwards.

[0006] As a further embodiment of the present invention: a vertical rod is provided through the lifting plate, and the vertical rod is coaxially and fixedly connected to the lifting plate; the top end of the vertical rod is coaxially and fixedly connected to the movable end of the electric cylinder; the bottom end of the vertical rod passes through the auger blade, and the bottom end of the vertical rod is coaxially and fixedly connected to the baffle; the bottom end of the auger blade is rotatably connected to the baffle.

[0007] As a further embodiment of the present invention: the power assembly includes a transmission wheel, a drive wheel, and a synchronous belt. The bottom end of the lifting plate has an inner cavity. The top of the auger blade is rotatably installed in the inner cavity. Both the transmission wheel and the drive wheel are rotatably installed in the inner cavity. The transmission wheel is sleeved on the outer circumference of the vertical rod, and the two are rotatably connected. The transmission wheel is coaxially and fixedly connected to the top of the auger blade. The drive wheel is connected to the transmission wheel via the synchronous belt. The drive wheel is driven to rotate by a drive source built into the lifting plate.

[0008] As a further aspect of the present invention: the first switching component includes a first cylinder, a first opening and a driving component. The first cylinder is rotatably installed in a first hollow cavity. Three staggered first openings are provided on the cylinder wall of the first cylinder. The first cylinder is driven to rotate by the driving component. The driving component drives the first cylinder to rotate so that one first opening is aligned and connected with a feed inlet, and the other two first openings are staggered with the feed inlet.

[0009] As a further embodiment of the present invention: the driving component includes a first external gear ring and a first gear. The first external gear ring is rotatably installed inside the lifting cylinder. The first external gear ring is coaxially arranged with the first cylinder and is fixedly connected to the top of the first cylinder. The first gear is rotatably installed inside the lifting cylinder. The first gear meshes with the first external gear ring and is driven to rotate by an output source.

[0010] As a further embodiment of the present invention: the second switching component includes a second cylinder, a second opening, a third external gear ring, and a third gear. The second cylinder is rotatably installed in the second hollow cavity. The second cylinder wall has three staggered second openings. The third external gear ring and the third gear are both rotatably installed in the discharge cylinder. The third external gear ring meshes with the third gear. The third gear is driven to rotate by a first power source built into the discharge cylinder. The third external gear ring is sleeved on the outer circumference of the second cylinder, and the third external gear ring is coaxially fixed with the second cylinder.

[0011] As a further embodiment of the present invention: the bottom end of the lifting cylinder is rotatably connected to the top end of the discharge cylinder, a fixing ring is fixedly installed on the outer circular surface of the bottom end of the lifting cylinder, a second external gear ring and a second gear are rotatably installed on the bottom of the fixing ring, the second external gear ring and the second gear mesh, the inner wall of the second external gear ring is coaxially fixedly connected to the outer circular surface of the discharge cylinder, and the second gear is driven to rotate by a second power source.

[0012] The beneficial effects of this invention are: 1. In this invention, the first external gear ring is driven to rotate at a fixed angle by the meshing of the first gear, which in turn drives the first cylinder to rotate precisely and coaxially in the first hollow cavity. The second gear and the third external gear ring are linked to drive the second cylinder to rotate synchronously and in alignment, so as to realize the synchronous single-channel conduction and residual sealing of the first opening and the feed port, and the second opening and the discharge port. Relying on the high-precision constraint of the 60-degree fixed-angle gear meshing transmission, a linkage switching system of upper and lower layer channels is formed, which forces the feed and discharge channels to correspond one by one and conduct independently in each layer. This avoids the problems of multiple channels being open, materials being mixed, and layer switching not being sealed tightly in traditional desertification restoration equipment. The mechanical fixed-angle linkage structure minimizes the probability of soil material cross-layering and backfilling, and ensures the independent and precise feeding of differentiated restoration materials in deep, middle and shallow layers. 2. In this invention, the vertical rod is driven to rise and fall vertically by an electric cylinder, which simultaneously drives the lifting plate, auger blades and baffle to move together. With the drive wheel, synchronous belt and transmission wheel inside the lifting plate cavity, the lifting and positioning and rotation feeding are carried out separately and independently. The height of the baffle can be used to match the discharge height of different layers and block the backflow of lower layer materials. At the same time, the built-in closed transmission structure can ensure that the auger blades feed materials at a uniform speed and stably, forming a collaborative operation framework of positioning and sealing and closed feeding. This can adapt to the needs of layered remediation feeding at different soil depths, solve the defects of traditional equipment such as asynchronous movement of lifting and feeding parts, misalignment of channels, material leakage, and easy erosion of transmission parts by wind and sand dust, and greatly improve the accuracy of layered feeding and the stability of equipment in field operation. 3. In this invention, the second gear meshes and drives the second outer gear ring to rotate, which can drive the discharge cylinder and the inner second cylinder to rotate coaxially at multiple angles. During the rotation, the second opening and the discharge port always maintain precise alignment and communication. Without affecting the normal conveying of the layered materials, the horizontal angle of the discharge port can be adjusted in the whole range. This breaks the limitations of the fixed discharge angle and single-point accumulation of materials in traditional remediation equipment. It allows differentiated remediation materials to fill the remediation cavities evenly from multiple directions and fill the soil pores in all directions. This effectively avoids the problems of voids in the cavity, uneven material distribution, and poor local solidification effect, and significantly improves the uniformity and overall solidification stability of the layered remediation of desertified soil. Attached Figure Description

[0013] The invention will now be further described with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the top cross-section of the lifting cylinder in this invention; Figure 3 This is a schematic diagram of the overall cross-section of the structure in this invention; Figure 4 In this invention Figure 3 Enlarged structural diagram of part A in the middle; Figure 5 In this invention Figure 3 Enlarged structural diagram of section B; Figure 6 In this invention Figure 3 Enlarged structural diagram of section C; Figure 7 This is a cross-sectional structural schematic diagram of the lifting plate in this invention; Figure 8 This is a schematic diagram of the structure of the top of the discharge cylinder in this invention; Figure 9 This is a schematic diagram of the structure at the bottom of the discharge cylinder in this invention; Figure 10 This is a schematic diagram of the structure of the first cylinder in this invention; Figure 11 This is a schematic diagram of the structure of the second cylinder in this invention.

[0015] In the diagram: 1. Lifting cylinder; 101. Feed inlet; 102. First hollow cavity; 2. Connecting frame; 3. Feeding assembly; 301. Conveying pipe; 302. Conveying auger; 303. Feeding pipe; 4. First cylinder; 401. First opening; 5. Discharge cylinder; 501. Discharge port; 502. Second hollow cavity; 6. Second cylinder; 601. Second opening; 7. Conical spike; 8. First external gear ring; 9. First gear; 10. Fixing ring; 11. Second external gear ring; 12. Second gear; 13. Third external gear ring; 14. Third gear; 15. Lifting plate; 1501. Inner cavity; 16. Auger blade; 17. Vertical rod; 18. Baffle; 19. Electric cylinder; 20. Transmission wheel; 21. Drive wheel; 22. Synchronous belt. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-11 As shown, the present invention is a soil pollution control and remediation device for desertification restoration, comprising: A lifting cylinder 1 has a connecting frame 2 fixedly installed on its top, which is connected to an external lifting assembly. A first hollow cavity 102 is formed inside the cylinder wall of the lifting cylinder 1. Three equally spaced feed inlets 101 are formed from top to bottom on the cylinder wall of the lifting cylinder 1. The feed inlets 101 are connected to the first hollow cavity 102. Each feed inlet 101 is connected to a feed assembly 3, which is located on one side of the lifting cylinder 1. A first switching assembly is provided inside the first hollow cavity 102, which allows a feed assembly 3 to communicate with the inside of the lifting cylinder 1 through the feed inlet 101. The discharge cylinder 5 is located at the bottom of the lifting cylinder 1 and is connected to the lifting cylinder 1. A second hollow cavity 502 is formed inside the cylinder wall of the discharge cylinder 5. Three equally spaced discharge ports 501 are formed from top to bottom on the cylinder wall of the discharge cylinder 5. The discharge ports 501 are connected to the second hollow cavity 502. A second switching component is provided inside the second hollow cavity 502. The second switching component allows the discharge cylinder 5 to be connected to the outside through one discharge port 501. A lifting plate 15 is slidably installed inside a lifting cylinder 1. The lifting plate 15 is driven to lift by an electric cylinder 19 fixedly installed at the top of the lifting cylinder 1. An auger blade 16 is rotatably installed at the bottom of the lifting plate 15. The auger blade 16 is driven to rotate by a power component. The edge of the auger blade 16 slides in cooperation with the inner wall of the lifting cylinder 1 and the discharge cylinder 5. A baffle 18 is provided at the bottom of the auger blade 16. The baffle 18 is slidably connected to the inner wall of the discharge cylinder 5.

[0018] The bottom end of the discharge cylinder 5 is fixedly equipped with a conical spike 7, the diameter of which decreases downward along the central axis of the discharge cylinder 5.

[0019] In one embodiment of this invention, it should be noted that the external lifting component described in this invention is prior art, integrated into a desertification remediation vehicle, and can realize the overall lifting and ground insertion of the device. This invention does not improve its structure and principle, and there is no need to elaborate on the specific structure, which does not affect the integrity of the technical solution of this device.

[0020] The working principle of this invention is as follows: During operation, the external lifting component drive device is inserted into the blasting cave of the desertification restoration sandy land. Based on the differentiated characteristics of the restoration needs of different soil layers, the coordinated movement of each component achieves precise layered feeding. The electric cylinder 19 drives the lifting plate 15 to slide downward, causing the auger blades 16 and the baffle 18 to descend, so that the baffle 18 moves to the position below the lowest discharge port 501 of the discharge cylinder 5. At the same time, the lifting plate 15 stops above the lowest feed port 101 of the lifting cylinder 1, establishing a deep material conveying channel. Subsequently, the first switching component and the second switching component act synchronously, opening the lowest set of feed ports 101 and discharge ports 501, and closing the other ports. The corresponding deep fine-grained straw fragments and high-concentration restoration liquid are fed into the lifting cylinder 1 through the feeding component 3. The power component drives the auger blades. The rotating plate 16 pushes the material at a uniform speed to the bottom of the cave, completing the deep soil remediation. This avoids the problems of small pores in deep soil, inability of coarse materials to penetrate, and incomplete remediation. After the bottom layer is fed, the electric cylinder 19 raises the lifting plate 15, the auger blade 16, and the baffle 18 step by step, so that the baffle 18 moves below the corresponding middle and shallow layer discharge ports 501. At the same time, the first switching component and the second switching component switch ports synchronously, closing the lower layer port and opening the corresponding layer's inlet 101 and outlet 501. Medium and coarse-sized straw fragments and conventional concentration remediation liquid suitable for the middle and shallow layers are fed. After the lower layer outlet 501 is blocked, the backflow of the filled material can be completely blocked, avoiding the problems of easy cross-layer feeding, bottom material backfilling, and chaotic soil layer remediation in existing equipment.

[0021] like Figures 1-3As shown, in a preferred embodiment of the present invention, each of the feeding components 3 includes a conveying pipe 301, a conveying auger 302, and a feeding pipe 303. One end of the conveying pipe 301 is fixedly installed on the outer surface of the lifting cylinder 1, and the discharge end of the conveying pipe 301 is connected to the inlet 101. The conveying auger 302 is rotatably installed inside the conveying pipe 301. The conveying auger 302 is driven to rotate by a power component. The blade edge of the conveying auger 302 slides in cooperation with the inner wall of the conveying pipe 301. The feeding pipe 303 is connected to the conveying pipe 301, and the feeding end of the feeding pipe 303 is open and facing upwards.

[0022] In one embodiment, the power component can be a servo motor, a servo motor or other components that can achieve rotational motion. This embodiment does not impose any specific limitations on this component.

[0023] In practical application, during operation, workers input straw fragments of the corresponding specifications and soil remediation solution of the matching concentration into the feed pipe 303 according to the soil remediation requirements. The materials naturally fall into the conveying pipe 301. The power unit starts and drives the conveying auger 302 to rotate continuously, and the material is conveyed at a uniform speed to the feed inlet 101 by the pushing force of the blades, and finally sent into the lifting cylinder 1 to complete the feeding. The three sets of conveying pipes 301 are designed with different lengths. On the one hand, the three feed pipes 303 can be staggered and arranged side by side to avoid interference between multiple feed structures and save equipment installation space. On the other hand, for the deep soil remediation requirements corresponding to the lower feed inlet 101, the longer conveying pipe 301 can extend the material conveying path. During the conveying process, the conveying auger 302 can perform secondary shearing and refining of the straw fragments to ensure that the straw material sent into the deep soil has a finer and more uniform particle size.

[0024] like Figures 1-7 As shown, in a preferred embodiment of the present invention, a vertical rod 17 is provided through the lifting plate 15, and the vertical rod 17 is coaxially and fixedly connected to the lifting plate 15. The top end of the vertical rod 17 is coaxially and fixedly connected to the movable end of the electric cylinder 19. The bottom end of the vertical rod 17 passes through the auger blade 16, and the bottom end of the vertical rod 17 is coaxially and fixedly connected to the baffle 18. The bottom end of the auger blade 16 is rotatably connected to the baffle 18.

[0025] In practical application, during operation, the electric cylinder 19 extends and retracts, directly driving the vertical rod 17 to rise and fall vertically. Relying on the rigid connection structure of the vertical rod 17, the lifting plate 15, auger blades 16, and baffle 18 are raised and lowered synchronously as a whole, achieving precise adjustment of the conveying channel height. After the lifting and positioning are completed, the power component can independently drive the auger blades 16 to rotate around the axis of the vertical rod 17, completing the material conveying operation normally. This structure achieves integrated linkage between the lifting drive component and the sealing and conveying components through the vertical rod 17, solving the problems of channel misalignment, incomplete sealing, and material leakage caused by the separate setting of lifting and feeding components and asynchronous movement in existing equipment. At the same time, the coaxial arrangement structure ensures the rotational stability of the auger blades 16, avoiding uneven material conveying and blade wear and jamming caused by eccentric rotation, thus improving the equipment's operational stability and the accuracy of layered feeding.

[0026] like Figure 1 As shown in the figure, in a preferred embodiment of the present invention, the power assembly includes a transmission wheel 20, a drive wheel 21, and a synchronous belt 22. The bottom end of the lifting plate 15 has an inner cavity 1501. The top end of the auger blade 16 is rotatably installed in the inner cavity 1501. Both the transmission wheel 20 and the drive wheel 21 are rotatably installed in the inner cavity 1501. The transmission wheel 20 is sleeved on the outer circular surface of the vertical rod 17, and the two are rotatably connected. The transmission wheel 20 is coaxially fixedly connected to the top end of the auger blade 16. The drive wheel 21 is connected to the transmission wheel 20 through the synchronous belt 22. The drive wheel 21 is driven to rotate by a drive source built into the lifting plate 15.

[0027] In one embodiment, the driving source may be a servo motor, a servo motor or other components, or other mechanisms capable of rotational motion. This embodiment does not impose specific limitations on these components.

[0028] In practical applications, when material conveying is required, the built-in drive source starts the drive wheel 21 to rotate at high speed. The drive wheel 21 drives the transmission wheel 20 to rotate synchronously and coaxially through the friction transmission of the synchronous belt 22. Since the transmission wheel 20 is fixed to the auger blade 16, it can accurately drive the auger blade 16 to rotate at a constant speed around the axis of the vertical rod 17. The downward conveying of materials inside the lifting cylinder 1 and the discharge cylinder 5 is achieved through the spiral pushing force of the blades. This built-in synchronous transmission structure integrates the transmission components into the inner cavity 1501 of the lifting plate 15. The structure is compact and has strong protection, which can prevent wind, sand and material dust from corroding the transmission components.

[0029] like Figures 1-11As shown, in a preferred embodiment of the present invention, the first switching component includes a first cylinder 4, a first opening 401, and a driving component. The first cylinder 4 is rotatably installed in the first hollow cavity 102. Three staggered first openings 401 are provided on the cylinder wall of the first cylinder 4. The first cylinder 4 is driven to rotate by the driving component. The driving component drives the first cylinder 4 to rotate so that one first opening 401 is aligned and connected with a feed inlet 101, and the other two first openings 401 are staggered with the feed inlet 101.

[0030] In practical applications, this embodiment is combined with Figure 10 , Figure 11 As shown, the three first openings 401 are evenly distributed circumferentially on the outer wall of the first cylinder 4. The included angle between the centers of two adjacent first openings 401 is 60 degrees, and the vertical height of each first opening 401 strictly matches a set of feed inlets 101, realizing a one-to-one corresponding layered alignment structure. When switching the soil layer feeding mode in actual operation, the drive component drives the first cylinder 4 to rotate smoothly 60 degrees inside the first hollow cavity 102. After the rotation is completed, one set of first openings 401 is completely aligned and connected with the feed inlets 101 at the corresponding height. The corresponding feed component 3 channel on this side is opened, and straw materials of different particle sizes and remediation liquids of different concentrations can smoothly enter the lifting cylinder 1 through the feed inlets 101. The other two sets of feed inlets 101 are completely sealed by the solid cylinder wall of the first cylinder 4 due to the misalignment of the first openings 401, with no material leakage and no channel connection. When it is necessary to switch between the middle layer and shallow layer feeding modes, the drive component continues to... The first cylinder 4 is continuously driven to rotate 60 degrees forward or backward, sequentially completing the individual switching of the middle and shallow feed inlets 101. Throughout the process, it maintains a single-hole open and double-hole blocked working state. This rotary switching structure can realize independent on / off control of the three feed channels, opening only one layer feed channel at a time, eliminating the problem of mixing of different specifications of remediation materials. It avoids the technical drawbacks of traditional desertification remediation equipment, such as simultaneous opening of multiple feed channels, mixing of different specifications of remediation materials, poor channel switching and blocking, material cross-layering, and poor feeding accuracy. It achieves independent, precise, and interference-free feeding and matching of deep, middle, and shallow remediation materials.

[0031] like Figures 1-11 As shown, in a preferred embodiment of the present invention, the driving assembly includes a first external gear ring 8 and a first gear 9. The first external gear ring 8 is rotatably mounted inside the lifting cylinder 1. The first external gear ring 8 is coaxially arranged with the first cylinder 4 and is fixedly connected to the top end of the first cylinder 4. The first gear 9 is rotatably mounted inside the lifting cylinder 1 and meshes with the first external gear ring 8. The first gear 9 is driven to rotate by an output source.

[0032] In one embodiment, the output source may be a servo motor, a servo motor or other components, or other mechanisms capable of rotational motion. This embodiment does not impose any specific limitations on these components.

[0033] In practical application, when switching the feeding channel and matching the feeding requirements of different soil layers are required during actual operation, the built-in output source can be precisely started and stopped to drive the first gear 9 to rotate at a constant speed and angle. Relying on the precise meshing transmission principle of gear and gear ring, the rotating first gear 9 can smoothly drive the large-diameter first outer gear ring 8 to rotate synchronously and coaxially. The transmission process is smooth without jamming, slippage, or angular deviation. Since the first outer gear ring 8 and the first cylinder 4 are rigidly fixed as one piece, the rotation of the first outer gear ring 8 can precisely drive the first cylinder 4 to complete a 60-degree fixed angle rotation synchronously inside the first hollow cavity 102, accurately realizing the alignment and conduction of the first opening 401 and the feed inlet 101 and the misalignment and sealing.

[0034] like Figures 1-11 As shown, in a preferred embodiment of the present invention, the second switching component includes a second cylinder 6, a second opening 601, a third external gear ring 13, and a third gear 14. The second cylinder 6 is rotatably installed in the second hollow cavity 502. The cylinder wall of the second cylinder 6 has three staggered second openings 601. The third external gear ring 13 and the third gear 14 are both rotatably installed in the discharge cylinder 5. The third external gear ring 13 meshes with the third gear 14. The third gear 14 is driven to rotate by a first power source built into the discharge cylinder 5. The third external gear ring 13 is sleeved on the outer surface of the second cylinder 6, and the third external gear ring 13 is coaxially fixed with the second cylinder 6.

[0035] In one embodiment, the first power source may be a servo motor, a servo motor or other components, or other mechanisms capable of rotational motion. This embodiment does not impose specific limitations on these components.

[0036] In practical application, the three second openings 601 are evenly distributed circumferentially on the outer wall of the second cylinder 6, with an included angle of 60 degrees between adjacent second openings 601, and their vertical heights correspond one-to-one with the discharge port 501. Together with the upper first opening 401 and the feed inlet 101, they form a layered channel system that runs vertically through the cylinder. During actual operation, the first power source starts and drives the third gear 14 to rotate at a fixed angle. Through precise meshing, it drives the third external gear ring 13 to rotate synchronously and coaxially. Because the third external gear ring 13 is rigidly connected to the second cylinder 6, it precisely drives the second cylinder 6 to rotate 60 degrees inside the second hollow cavity 502. After a single rotation, a single second opening 601 is completely aligned and connected with the corresponding height of the discharge port 501, and connects with the upper opening 401 and the feed inlet 101. The material channel forms a complete material conveying path, ensuring the normal discharge of the remediation material for the corresponding soil layer. The other two sets of discharge ports 501 and the second opening 601 are circumferentially misaligned and completely blocked by the solid cylinder wall of the second cylinder 6. Rotating 60 degrees again completes the switching of the discharge channel for the next layer. Throughout the process, a single channel is open while the other channels are closed. The second switching component is synchronized and precisely aligned with the first switching component, and the upper and lower channels are matched one by one. This completely solves the technical problems of asynchronous inlet and outlet channels, backflow of filled material in the lower layer, cross-layering and falling of material in the upper layer, and chaotic soil layer remediation in traditional layered remediation equipment. It ensures that the remediation material for each layer of soil is filled independently and solidified in layers, effectively improving the overall quality of layered remediation of desertified soil.

[0037] like Figures 1-11 As shown, in a preferred embodiment of the present invention, the bottom end of the lifting cylinder 1 is rotatably connected to the top end of the discharge cylinder 5. A fixing ring 10 is fixedly installed on the outer circular surface of the bottom end of the lifting cylinder 1. A second external gear ring 11 and a second gear 12 are rotatably installed on the bottom of the fixing ring 10. The second external gear ring 11 and the second gear 12 mesh. The inner wall of the second external gear ring 11 is coaxially fixedly connected to the outer circular surface of the discharge cylinder 5. The second gear 12 is driven to rotate by a second power source.

[0038] In one embodiment, the second power source may be a servo motor, a servo motor or other components, or other mechanisms capable of rotational motion. This embodiment does not impose specific limitations on these components.

[0039] In practical application, during the layered feeding operation, the second power source can drive the second gear 12 to rotate. Through gear meshing, the second outer gear ring 11 rotates as a whole, thereby driving the discharge cylinder 5 and the second cylinder 6 to rotate synchronously and coaxially, changing the horizontal orientation angle of the discharge port 501. During the rotation, the second opening 601 and the discharge port 501 always maintain alignment and communication, without affecting the normal material conveying. This structure can realize multi-angle rotation of the discharge port 501 to discharge material, allowing the remediation material to be evenly filled into the remediation cavity from different directions. This solves the problems of fixed discharge angle, concentrated accumulation of material, remediation cavities inside the cavity, and uneven material distribution in existing desertification remediation equipment. It fills soil pores in all directions, improving the uniformity of soil remediation and the overall solidification effect.

[0040] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A soil pollution control and remediation device for desertification remediation, characterized in that, include: A lifting cylinder (1) is provided with a connecting frame (2) fixedly installed on the top of the lifting cylinder (1). The connecting frame (2) is connected to an external lifting assembly. A first hollow cavity (102) is provided in the cylinder wall of the lifting cylinder (1). Three equally spaced feed ports (101) are provided in the cylinder wall of the lifting cylinder (1) from top to bottom. The feed ports (101) are connected to the first hollow cavity (102). Each feed port (101) is connected to a feed assembly (3). The feed assembly (3) is located on one side of the lifting cylinder (1). A first switching assembly is provided in the first hollow cavity (102). The first switching assembly enables a feed assembly (3) to be connected to the inside of the lifting cylinder (1) through the feed port (101). The discharge cylinder (5) is located at the bottom of the lifting cylinder (1) and is connected to the lifting cylinder (1). A second hollow cavity (502) is provided in the cylinder wall of the discharge cylinder (5). Three equally spaced discharge ports (501) are provided in the cylinder wall of the discharge cylinder (5) from top to bottom. The discharge ports (501) are connected to the second hollow cavity (502). A second switching component is provided in the second hollow cavity (502). The second switching component allows the discharge cylinder (5) to be connected to the outside through one discharge port (501). Lifting plate (15) is slidably installed inside lifting cylinder (1). The lifting plate (15) is driven to lift by an electric cylinder (19) fixedly installed at the top of lifting cylinder (1). A screw conveyor blade (16) is rotatably installed at the bottom of the lifting plate (15). The screw conveyor blade (16) is driven to rotate by a power component. The edge of the screw conveyor blade (16) slides with the inner wall of lifting cylinder (1) and discharge cylinder (5). A baffle (18) is provided at the bottom of the screw conveyor blade (16). The baffle (18) is slidably connected to the inner wall of discharge cylinder (5).

2. The soil pollution control and remediation device for desertification restoration according to claim 1, characterized in that, Each of the feeding components (3) includes a feeding pipe (301), a feeding auger (302), and a feeding pipe (303). One end of the feeding pipe (301) is fixedly installed on the outer surface of the lifting cylinder (1), and the discharge end of the feeding pipe (301) is connected to the inlet (101). The feeding auger (302) is rotatably installed inside the feeding pipe (301). The feeding auger (302) is driven to rotate by a power component. The blade edge of the feeding auger (302) slides against the inner wall of the feeding pipe (301). The feeding pipe (303) is connected to the feeding pipe (301), and the feeding end of the feeding pipe (303) is open and facing upwards.

3. The soil pollution control and remediation device for desertification restoration according to claim 1, characterized in that, A vertical rod (17) is installed inside the lifting plate (15), and the vertical rod (17) is coaxially and fixedly connected to the lifting plate (15). The top end of the vertical rod (17) is coaxially and fixedly connected to the movable end of the electric cylinder (19). The bottom end of the vertical rod (17) passes through the auger blade (16), and the bottom end of the vertical rod (17) is coaxially and fixedly connected to the baffle (18). The bottom end of the auger blade (16) is rotatably connected to the baffle (18).

4. A soil pollution control and remediation device for desertification remediation according to claim 3, characterized in that, The power assembly includes a transmission wheel (20), a drive wheel (21), and a timing belt (22). The bottom end of the lifting plate (15) has an inner cavity (1501). The top of the auger blade (16) is rotatably installed in the inner cavity (1501). The transmission wheel (20) and the drive wheel (21) are both rotatably installed in the inner cavity (1501). The transmission wheel (20) is sleeved on the outer circular surface of the vertical rod (17), and the two are rotatably connected. The transmission wheel (20) is coaxially fixedly connected to the top of the auger blade (16). The drive wheel (21) is connected to the transmission wheel (20) through the timing belt (22). The drive wheel (21) is driven to rotate by the drive source built into the lifting plate (15).

5. A soil pollution control and remediation device for desertification remediation according to claim 1, characterized in that, The first switching component includes a first cylinder (4), a first opening (401) and a driving component. The first cylinder (4) is rotatably installed in the first hollow cavity (102). Three staggered first openings (401) are provided on the cylinder wall of the first cylinder (4). The first cylinder (4) is driven to rotate by the driving component. The driving component drives the first cylinder (4) to rotate so that one first opening (401) is aligned and connected with one feed port (101), and the other two first openings (401) are staggered with the feed port (101).

6. A soil pollution control and remediation device for desertification remediation according to claim 5, characterized in that, The drive assembly includes a first external gear ring (8) and a first gear (9). The first external gear ring (8) is rotatably installed inside the lifting cylinder (1). The first external gear ring (8) is coaxially arranged with the first cylinder (4) and is fixedly connected to the top of the first cylinder (4). The first gear (9) is rotatably installed inside the lifting cylinder (1). The first gear (9) meshes with the first external gear ring (8). The first gear (9) is driven to rotate by an output source.

7. A soil pollution control and remediation device for desertification remediation according to claim 1, characterized in that, The second switching component includes a second cylinder (6), a second opening (601), a third external gear ring (13), and a third gear (14). The second cylinder (6) is rotatably installed in the second hollow cavity (502). The cylinder wall of the second cylinder (6) has three staggered second openings (601). The third external gear ring (13) and the third gear (14) are rotatably installed in the discharge cylinder (5). The third external gear ring (13) meshes with the third gear (14). The third gear (14) is driven to rotate by the first power source built into the discharge cylinder (5). The third external gear ring (13) is sleeved on the outer surface of the second cylinder (6), and the third external gear ring (13) is coaxially fixed with the second cylinder (6).

8. A soil pollution control and remediation device for desertification remediation according to claim 1, characterized in that, The bottom end of the lifting cylinder (1) is rotatably connected to the top end of the discharge cylinder (5). A fixing ring (10) is fixedly installed on the outer circular surface of the bottom end of the lifting cylinder (1). A second external gear ring (11) and a second gear (12) are rotatably installed on the bottom of the fixing ring (10). The second external gear ring (11) and the second gear (12) mesh. The inner wall of the second external gear ring (11) is coaxially fixedly connected to the outer circular surface of the discharge cylinder (5). The second gear (12) is driven to rotate by a second power source.

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