Saline-alkali soil sealing area treatment system and treatment method

Abstract

The invention relates to the technical field of saline-alkali soil treatment, in particular to a saline-alkali soil sealing area treatment system and method.The saline-alkali soil sealing area treatment system comprises a ditching device, a pipe laying device and a vertical plastic laying device, and the pipe laying device and the vertical plastic laying device can be selectively connected to the rear end of the ditching device; therefore, the saline-alkali soil sealing area treatment system can enter a pipe laying state or a plastic laying state; the system has the advantages that the ditching device serves as a front-end operation unit of the system and is responsible for digging grooves with preset depth and width in the saline-alkali soil; and the pipe laying device and the vertical plastic laying device can be selectively connected to the rear end of the ditching device according to actual treatment requirements, so that the whole system can be freely switched between a pipe laying state and a plastic laying state, and the applicability and the construction efficiency of the equipment are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of saline-alkali land management, and in particular to a saline-alkali land sealing and management system and a management method. Background Art

[0002] Traditional saline-alkali land remediation methods typically rely on multiple independent pieces of equipment to separately complete steps such as trenching, laying drainage pipes, and installing vertical anti-seepage barriers. These operations often require the coordinated operation of multiple machines, resulting in not only cumbersome and time-consuming construction processes but also high equipment investment and operating costs. This significantly limits both efficiency and cost-effectiveness, especially when dealing with large saline-alkali land or complex terrain.

[0003] Due to the lack of effective integrated design between traditional equipment and the loose connection between various processes, long waiting times and frequent interruptions often occur, hindering the overall construction progress. Furthermore, the parallel operation of multiple equipment also places higher demands on construction site organization and management, increasing manpower, material resources, and time costs. Especially in remote or inaccessible areas, the difficulty of transporting and assembling equipment further limits the progress of remediation work. Summary of the Invention

[0004] (1) Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a saline-alkali land sealing and management system and management method, which solves the technical problems of low construction efficiency and poor flexibility of saline-alkali land management equipment in the prior art.

[0006] (2) Technical solution

[0007] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] In the first aspect, the present invention provides a saline-alkali land sealing and management system, including a trenching device, a pipe-laying device and a vertical paving device. The pipe-laying device and the vertical paving device can be selectively connected to the rear end of the trenching device so that the saline-alkali land sealing and management system can enter a pipe-laying state or a paving state; the pipe-laying device is suitable for laying drainage pipes; the vertical paving device includes a shell connected to the rear end of the trenching device, and the inner cavity of the shell is provided with a diaphragm stored in a scroll shape, the axis of the diaphragm extends vertically, and an output port is opened on the shell, and the unfolded diaphragm can be output from the output port.

[0009] In one technical solution of the present invention, a connecting piece is also included, and the pipe laying device and the vertical plastic laying device can be vertically swingably connected to the rear end of the trenching device through the connecting piece.

[0010] In one technical solution of the present invention, the shell includes a first half shell and a second half shell hinged along a vertical axis. The first half shell and the second half shell can be swung together to put the shell into a storage state, and can also be swung apart to put the shell into a maintenance state. The shell also includes a retaining member, which, in the storage state, limits the first half shell and the second half shell from swinging apart.

[0011] In one technical solution of the present invention, the retaining member includes a first magnetic member and a second magnetic member fixedly connected to the first half shell and the second half shell respectively, and the first magnetic member and the second magnetic member can be attracted to each other.

[0012] In one technical solution of the present invention, the vertical laying device also includes a disconnecting mechanism, which is suitable for disconnecting the expanded diaphragm at the rear side of the output port; the disconnecting mechanism includes a first guide plate and a second guide plate both extending vertically, the shell is cylindrical, the first guide plate and the second guide plate are both circumferentially slidably connected to the outer wall of the shell on one side away from the groove device, and a disconnecting channel is formed therebetween, and the disconnecting channel corresponds to the rear side position of the output port; the first guide plate and the second guide plate can approach or separate from each other, so that the disconnecting channel can switch between a closed state capable of disconnecting the expanded diaphragm and an open state allowing the expanded diaphragm to pass through.

[0013] In one technical solution of the present invention, mutually cooperable disconnecting portions are formed on the opposite side walls of the first guide plate and the second guide plate. In the closed state, the two disconnecting portions are in contact with each other, and in the open state, the two disconnecting portions are separated from each other.

[0014] In one technical solution of the present invention, the surfaces of the first guide plate and the second guide plate that are away from each other form vertically extending extrusion surfaces; when the vertical paving device moves in the soil with the trenching device, the extrusion part is subjected to pressure from the soil, so that the first guide plate and the second guide plate maintain a tendency to approach each other; the disconnection mechanism also includes a support block, which can be selectively supported in the disconnection channel; when the support block is supported between the first guide plate and the second guide plate, the disconnection channel remains in an open state; when the support block is separated from between the first guide plate and the second guide plate, the pressure from the soil can cause the disconnection channel to enter a closed state to cut off the diaphragm deployed in the disconnection channel.

[0015] In one technical solution of the present invention, the vertical paving device also includes a guide member, which is fixedly connected to the outer wall of the shell on one side close to the ditching device, and a guide surface is formed on the guide member that can guide the soil outward and extends vertically; the guide member includes a third guide plate and a fourth guide plate, both of which extend vertically, and both are connected to the outer wall of the shell on one side close to the ditching device, and the outer walls of the two that are far away from each other form a guide surface.

[0016] In one technical solution of the present invention, the output port is located at the rear side of the shell, and both the first half shell and the second half shell are formed with a clearance groove. When the shell enters the storage state, the two clearance grooves engage with each other to form the output port.

[0017] In a second aspect, the present invention provides a method for sealing and managing saline-alkali land, including the saline-alkali land sealing and management system in the above technical solution, the method comprising:

[0018] S1: Open the initial trench on the intended land;

[0019] S2: Determine whether pipe laying or vertical plastic laying is required;

[0020] S3.1: When pipe laying is required, the saline-alkali land sealing and management system shall enter the pipe laying state and be placed in the initial trench;

[0021] S3.2: When vertical paving operations are required, the saline-alkali land sealing and management system is put into the paving state and placed in the initial trench. The end of the diaphragm is fixed on the side wall of the initial trench after being pulled out of the output port.

[0022] S4: The trenching device is continuously moved in the soil to perform corresponding pipe laying operations or vertical plastic laying operations;

[0023] S5.1: When the corresponding pipe laying operation is performed and the laying is completed, the trenching device and the vertical laying device are separated from the soil upwards, and the drainage pipe laid by the pipe laying device is cut off;

[0024] S5.2: When the corresponding vertical paving operation is performed and the paving is completed, the trenching device continues to move in the soil, and the support block is separated from the disconnection channel to disconnect the unfolded diaphragm, and then the trenching device and the vertical paving device are separated from the soil upward.

[0025] (3) Beneficial effects

[0026] The beneficial effects of the present invention are as follows: the saline-alkali land sealing and management system and management method of the present invention integrates a trenching device, a pipe-laying device, and a vertical plastic-laying device, and the three are combined in a flexible modular manner through a structural design. Among them, the trenching device serves as the front-end operation unit of the system, responsible for digging a trench of predetermined depth and width in the saline-alkali land; the pipe-laying device and the vertical plastic-laying device can be selectively connected to the rear end of the trenching device according to actual management needs, so that the entire system can freely switch between the "pipe-laying state" and the "plastic-laying state", greatly improving the applicability of the equipment and construction efficiency.

[0027] When the system is in the pipe-laying state, the pipe-laying device can be put into operation immediately after the trenching device completes the trench excavation, accurately laying the drainage pipe at the bottom of the trench, and cooperating with the subsequent covering operation to realize a continuous construction process. In scenarios where vertical anti-seepage treatment is required, the system can be switched to the plastic laying state. At this time, the vertical plastic laying device continues to work. It mainly includes a shell fixedly connected to the rear end of the trenching device. A diaphragm stored in a scroll shape is provided in the shell. The axis of the diaphragm is arranged vertically to meet the laying requirements in the vertical direction. An output port is provided on the shell. The unfolded diaphragm can be smoothly output from the output port and laid vertically along the side wall of the trench, forming an effective isolation barrier to prevent salt migration and diffusion.

[0028] The integrated design of the present invention not only realizes the organic integration of multiple functions on the same device, but also effectively reduces the types and quantities of mechanical equipment required in the traditional treatment process, reduces construction costs, ensures construction flexibility, and is conducive to promotion and popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the main structure of the saline-alkali land sealing and management system of the present invention in the pipe-laying state;

[0030] Figure 2 This is a schematic top view of the structure of the saline-alkali land sealing and management system of the present invention in a pipe-laying state;

[0031] Figure 3 This is a schematic diagram of the main structure of the saline-alkali land sealing and management system of the present invention in a paving state;

[0032] Figure 4 This is a schematic top view of the saline-alkali land sealing and management system of the present invention in a paved state with the disconnection channel in an open state;

[0033] Figure 5 This is a schematic top view of the saline-alkali land sealing and management system of the present invention in a paved state with the disconnection channel in a closed state;

[0034] Figure 6 This is a schematic diagram of the main structure of the pipe-laying device of the present invention;

[0035] Figure 7 This is a schematic diagram of the right side structure of the housing of the present invention after entering the maintenance state;

[0036] Figure 8 It is a partial structural schematic diagram of the pipe-laying device of the present invention from the right side;

[0037] Figure 9 Schematic diagram of the connection between the first guide plate or the second guide plate and the housing of the present invention.

[0038] [Description of Reference Numerals]

[0039] A. Drainage pipe; B. Diaphragm;

[0040] 1: Ditching device;

[0041] 2: Pipe laying device;

[0042] 3: Vertical plastic laying device;

[0043] 31. Housing; 31a. Output port;

[0044] 311, first half shell; 312, second half shell;

[0045] 313, holding member; 3131, first magnetic member; 3132, second magnetic member;

[0046] 32. Disconnection mechanism;

[0047] 321, first guide plate; 322, second guide plate; 32a, disconnection portion; C, disconnection channel; 32b, extrusion surface;

[0048] 323, support block;

[0049] 4: Connectors;

[0050] 5: guide member; 5a, guide surface;

[0051] 51. The third guide plate; 52. The fourth guide plate. DETAILED DESCRIPTION

[0052] In order to better explain the present invention, so as to facilitate understanding, the following Figures 1-9 , the present invention is described in detail through specific implementation methods. Figure 1 The orientation is referenced.

[0053] Example 1:

[0054] Reference Figures 1-6 An embodiment of the present invention provides a saline-alkali land sealing and management system, including a trenching device 1, a pipe-laying device 2 and a vertical paving device 3. The pipe-laying device 2 and the vertical paving device 3 can be selectively connected to the rear end of the trenching device 1 so that the saline-alkali land sealing and management system can enter a pipe-laying state or a paving state; the pipe-laying device 2 is suitable for laying a drainage pipe A; the vertical paving device 3 includes a shell 31 connected to the rear end of the trenching device 1, and the inner cavity of the shell 31 is provided with a diaphragm B stored in a scroll shape, and the axis of the diaphragm B extends vertically. An output port 31a is provided on the shell 31, and the unfolded diaphragm B can be output from the output port 31a.

[0055] The trenching device 1 can adjust the trenching depth based on the Beidou positioning device and then adjust the pipe laying depth and plastic laying depth, thereby improving the flexibility of the system.

[0056] Specifically, the trenching device 1 system integrates a Beidou GNSS positioning device, achieving centimeter-level positioning accuracy. This system can obtain real-time information about the device's current location and ground elevation changes. By comparing this information with the preset construction path and designed depth parameters, it provides a precise control basis for subsequent actuators.

[0057] The trenching device 1 is equipped with a hydraulic lifting system and a multi-sensor fusion feedback mechanism, including pressure sensors, angle sensors, and displacement sensors. Combined with terrain elevation data provided by Beidou, it enables dynamic adjustment of trenching depth. For example, in areas with large terrain fluctuations, the system can automatically raise or lower the trenching device to ensure that the trench depth always meets the set standard.

[0058] Relying on the Beidou navigation system, precise control of the operation path and depth is achieved, reducing manual intervention and improving construction consistency. The system has terrain adaptation capabilities and can operate stably in various complex terrain conditions such as hills and slopes.

[0059] In this embodiment, the system integrates a trenching device 1, a pipe-laying device 2, and a vertical plastic-laying device 3. These three components are combined in a flexible, modular manner through a structured design. The trenching device 1, as the front-end operating unit of the system, is responsible for excavating a trench of predetermined depth and width in saline-alkali soil. The pipe-laying device 2 and the vertical plastic-laying device 3 can be selectively connected to the rear end of the trenching device 1 based on actual treatment needs. This allows the entire system to freely switch between "pipe-laying mode" and "plastic-laying mode," greatly improving the equipment's applicability and construction efficiency.

[0060] When the system is in the pipe-laying state, the pipe-laying device 2 can be put into operation immediately after the trenching device 1 completes trench excavation, accurately laying the drainage pipe A at the bottom of the trench, and cooperating with subsequent covering operations to achieve a continuous construction process. In scenarios where vertical anti-seepage treatment is required, the system can be switched to the plastic laying state. At this time, the vertical plastic laying device 3 continues to work. It mainly includes a shell 31 fixedly connected to the rear end of the trenching device 1. A diaphragm B is provided in the shell 31 in the shape of a scroll. The axis of the diaphragm B is arranged vertically to meet the laying requirements in the vertical direction. An output port 31a is provided on the shell 31. The unfolded diaphragm B can be smoothly output from the output port 31a and laid vertically along the side wall of the trench, forming an effective isolation barrier to prevent salt migration and diffusion.

[0061] The integrated design of the present invention not only realizes the organic integration of multiple functions on the same device, but also effectively reduces the types and quantities of mechanical equipment required in the traditional treatment process, reduces construction costs, ensures construction flexibility, and is conducive to promotion and popularization.

[0062] Specifically, the pipe laying device 2 includes a vertically extending connecting block with a pipe channel opened on the connecting block. One end of the channel corresponds to the bottom of the groove opened by the trenching device 1, and the other end extends upward out of the groove, so that the pipe laying device 2 can continuously complete the pipeline laying operation.

[0063] The trenching device 1 can be configured as a plate trenching device 1 or a chain trenching device 1, which can be flexibly selected by relevant personnel. The width of the pipe laying device 2 and the vertical plastic laying device 3 is preferably less than or equal to the width of the trenching device 1 to reduce the travel resistance of the system in the soil.

[0064] The saline-alkali land sealing and management system also includes a connector 4, a pipe-laying device 2 and a vertical plastic-laying device 3, which can be connected to the rear end of the trenching device 1 in a vertical swinging manner through the connector 4. The pipe-laying device 2 and the vertical plastic-laying device 3 can be connected to the trenching device 1 through a connector 4 of the same structure, ensuring the ease of use of the management system. At the same time, since the two are connected to the rear end of the trenching device 1 in a vertical swinging manner, the two can be passively swung to a certain extent during the working process, which can better adapt to the working conditions where the trench has a curvature or there are hard objects in the trench, thereby improving the use effect of the management system.

[0065] Specifically, connector 4 comprises a sleeve and a pin. The sleeves are fixedly connected to trenching device 1, pipe laying device 2, and vertical plastic laying device 3, respectively. The pin can be inserted into the corresponding sleeves, establishing a swing connection between pipe laying device 2 and trenching device 1, or between vertical plastic laying device 3 and trenching device 1. Connector 4 ensures the efficiency of the system during state switching and the stability of the swing connection.

[0066] During the actual operation, an initial trench can be manually dug, and the trenching device 1 performs trenching operations at the front end of the initial trench. The length of the initial trench must meet the requirement of being greater than the length of the pipe laying device 2 and the vertical paving device 3. This ensures that after the trenching device 1 is set in the initial trench, the pipe laying device 2 and the vertical paving device 3 can also be located in the initial trench. If vertical paving operations are performed, the diaphragm B stored in a scroll shape needs to be manually unfolded and pulled out from the output port 31a, so that its end is stably fixed to the side wall of the initial trench. Because the diaphragm B will be subjected to a certain amount of tension, it is necessary to ensure that it has a certain tensile strength.

[0067] Example 2:

[0068] Reference Figure 3-Figure 9In addition to all the technical solutions of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0069] The shell 31 includes a first half shell 311 and a second half shell 312 hinged along a vertical axis. The first half shell 311 and the second half shell 312 can be swung together to put the shell 31 into a storage state, and can also be swung apart to put the shell 31 into a maintenance state; the shell 31 also includes a retaining member 313. In the storage state, the retaining member 313 limits the first half shell 311 and the second half shell 312 from swinging apart.

[0070] In this embodiment, when the diaphragm B in the inner cavity of the shell 31 needs to be replaced, inspected or maintained, the first half shell 311 and the second half shell 312 can be swung apart to open the internal space of the shell 31, which greatly improves the maintainability and operational convenience of the equipment.

[0071] To ensure the stability of the housing 31 in the stowed state and prevent the half-shells from accidentally opening due to external vibration or mechanical movement, which could affect the overall structural safety, the housing 31 is also equipped with a set of efficient retaining members 313. These retaining members 313 take effect when the housing 31 enters the stowed state, limiting the relative swing between the first half-shell 311 and the second half-shell 312, thereby stably maintaining them in the closed position.

[0072] The outlet 31a is located on the rear side of the housing 31. Both the first and second half shells 311, 312 form clearance grooves. When the housing 31 is in the stowed position, the two clearance grooves interlock to form the outlet 31a. This design is not only compact and space-efficient, but also ensures smooth and unimpeded delivery of the diaphragm B from the interior of the housing 31 during installation, preventing sudden changes or blockages that could affect installation quality. Furthermore, this arrangement of the first and second half shells 311, 312 allows the vertical paving device 3 to maintain its stowed position while in use, utilizing the compressive force from the soil. This improves the reliability of the vertical paving device 3.

[0073] In the maintenance state, when the first half shell 311 and the second half shell 312 are swung apart, the clearance groove is also opened, exposing the output port 31a area and the internal structure of the shell 31, making it easier for operators to clean, inspect or replace the diaphragm B output path and related components, significantly improving the equipment maintenance efficiency and convenience.

[0074] The retaining member 313 includes a first magnetic member 3131 and a second magnetic member 3132 fixedly connected to the first half shell 311 and the second half shell 312 respectively. The first magnetic member 3131 and the second magnetic member 3132 can be attracted to each other.

[0075] The retaining member 313 utilizes a magnetic connection structure. The first magnetic member 3131 and the second magnetic member 3132 generate a stable magnetic attraction, firmly adhering them together and locking the housing 31 in the retracted state. This magnetic connection method is not only simple to operate and responsive, but also eliminates the need for complex locking mechanisms or additional drive components. Its structure is simple and reliable, making it easy to use and maintain.

[0076] When the housing 31 needs to be opened, it is only necessary to use a tool to pry apart the first half-shell 311 and the second half-shell 312, or manually separate the first half-shell 311 and the second half-shell 312. Since the vertical paving device 3 is subjected to a squeezing force from the soil when in use, this squeezing force helps the housing 31 to maintain its storage state. Therefore, it is not necessary to set the magnetic attraction between the first magnetic member 3131 and the second magnetic member 3132 to be very strong.

[0077] Slide grooves are circumferentially formed on the first half shell 311 and the second half shell 312 , and sliders are formed on the first guide plate 321 and the second guide plate 322 to be slidably connected to the corresponding slide grooves.

[0078] The chute grooves are evenly distributed along the circumference of the housing 31, and their extension paths match the outer contours of the housing 31, ensuring that the guide components maintain a consistent trajectory during movement. The first and second guide plates 321 and 322 are each equipped with a corresponding slider. Each slider engages and forms a sliding connection with its corresponding chute groove, allowing the guide plates to slide circumferentially along the outer wall of the housing 31 while maintaining their vertical extension. The sliders and chute grooves can be configured as matching T-blocks and T-slots.

[0079] The sliding structure not only realizes a stable connection between the first guide plate 321 and the second guide plate 322 and the shell 31, but also gives them flexible mobility, so that the first guide plate 321 and the second guide plate 322 can switch smoothly between the closed state and the open state.

[0080] As shown in the figure, a corrugated cover can be set at the slide position, and the two ends of the corrugated cover are fixedly connected to the slider and the front end of the slide, so as to avoid blocking the soil from entering the slide as much as possible to affect the smoothness of the sliding of the first guide plate 321 and the second guide plate 322.

[0081] Moreover, even if mud enters the chute, it will only affect the smoothness of sliding of the first guide plate 321 and the second guide plate 322, and will not prevent the two from sliding. The two ends of the chute can also be set as through grooves to timely discharge the mud in the chute.

[0082] Example 3:

[0083] Reference Figure 3-Figure 8In addition to all the technical solutions of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0084] The vertical paving device 3 also includes a disconnection mechanism 32, which is suitable for disconnecting the expanded diaphragm B at the rear side of the output port 31a; the disconnection mechanism 32 includes a first guide plate 321 and a second guide plate 322 both extending vertically, the shell 31 is cylindrical, the first guide plate 321 and the second guide plate 322 are both circumferentially slidably connected to the outer wall of the shell 31 on the side away from the groove device 1, and a disconnection channel C is formed therebetween, and the disconnection channel C corresponds to the rear side position of the output port 31a; the first guide plate 321 and the second guide plate 322 can approach each other or separate from each other, so that the disconnection channel C can switch between a closed state capable of disconnecting the expanded diaphragm B and an open state allowing the expanded diaphragm B to pass through.

[0085] In this embodiment, the disconnect mechanism 32 is used to cut the diaphragm B at the right time during its unfolding and continuous delivery, according to construction requirements, thereby controlling the laying length. The disconnect mechanism 32 comprises two vertically extending first and second guide plates 321, 322. Both are mounted on the outer wall of the housing 31, facing away from the ditch device 1, in a circumferentially sliding manner. A variable-width disconnect channel C is formed between them. The position of this disconnect channel C precisely corresponds to the rear side of the delivery port 31a, ensuring that the diaphragm B can smoothly enter this channel after delivery, completing the disconnection operation.

[0086] The distance between the first guide plate 321 and the second guide plate 322 can be adjusted as needed. When the two are brought closer together, the width of the disconnection channel C decreases to a critical value, effectively cutting off the diaphragm B during passage due to shear force. When the two are separated, the channel width increases, allowing the diaphragm B to pass unimpeded. At this time, the disconnection mechanism 32 is in the open state, without affecting the continuous output of the diaphragm B. This structural design allows the disconnection mechanism 32 to freely switch between a "closed disconnection state" and an "open passage state" to meet the diverse needs of different operation stages.

[0087] The introduction of disconnect mechanism 32 improves the operational capabilities of vertical plastic-laying device 3, achieving an integrated process from membrane B output to on-demand disconnection. This not only improves construction efficiency but also reduces manual intervention, enhancing the convenience and reliability of system operation. This provides a more efficient and controllable technical means for saline-alkali land containment and management projects, with significant engineering application value and promotion prospects.

[0088] Mutually compatible disconnecting portions 32a are formed on the opposite side walls of the first guide plate 321 and the second guide plate 322. In the closed state, the two disconnecting portions 32a contact each other and generate sufficient pressure to quickly cut off the diaphragm B material passing through the area. In the open state, the two disconnecting portions 32a separate from each other to form a smooth output path, allowing the diaphragm B to continue to be transported forward unimpeded.

[0089] The disconnect portion 32a can adopt a blade-like, serrated, or flat pressurized structure to ensure efficient and thorough severing while preventing damage to the diaphragm B or unstable movement due to pulling or tearing. The disconnect portion 32a can also be hardened or coated with a wear-resistant coating to extend its service life and enhance the durability and stability of the device.

[0090] The surfaces of the first guide plate 321 and the second guide plate 322 that are away from each other form a vertically extending extrusion surface 32b; when the vertical paving device 3 moves in the soil with the trenching device 1, the extrusion part is subjected to pressure from the soil, so that the first guide plate 321 and the second guide plate 322 maintain a tendency to approach each other; the disconnection mechanism 32 also includes a support block 323, which can be selectively supported between the first guide plate 321 and the second guide plate 322; when the support block 323 is supported between the first guide plate 321 and the second guide plate 322, the disconnection channel C remains in an open state; when the support block 323 is separated from between the first guide plate 321 and the second guide plate 322, the pressure from the soil can cause the disconnection channel C to enter a closed state, so as to cut off the diaphragm B deployed in the disconnection channel C.

[0091] After the soil is trenched, due to the fluidity of the soil, the granular soil will flow toward the extrusion surface 32b and generate pressure on the extrusion surface 32b. The deeper the trench, the better the soil fluidity and the more obvious the pressure.

[0092] The vertically extending extrusion surface 32b cleverly utilizes the external pressure exerted on the vertical paving device 3 as it moves through the soil with the trenching device 1. As the device advances through saline-alkali soil and lays the diaphragm B, the surrounding soil exerts continuous pressure on the extrusion surfaces 32b on the two guide plates, causing the first guide plate 321 and the second guide plate 322 to constantly move toward each other. Without external interference, this tendency causes the disconnection channel C to gradually shrink, ultimately achieving automatic shearing of the diaphragm B.

[0093] The support block 323 can be optionally positioned between the first guide plate 321 and the second guide plate 322. When the support block 323 is in the supporting position, its ends abut against the inner sides of the two guide plates, preventing them from closing due to external soil pressure. This keeps the disconnection channel C open, allowing the diaphragm B to pass smoothly. When disconnection is required, the support block 323 can be removed from its supporting position between the guide plates. At this point, the pressure from the soil immediately pushes the two guide plates toward each other, closing the disconnection portion 32a and completing the severing of the diaphragm B.

[0094] Specifically, the support block 323 can be extended and retracted by a telescopic drive member, which can be a pneumatic, electric, or hydraulic telescopic rod. Furthermore, to facilitate smoother disengagement of the support block 323 from the disconnect channel C, rollers can be provided on the surfaces of the support block 323 that contact the first guide plate 321 and the second guide plate 322.

[0095] By converting soil resistance into functional power, the system achieves disconnection without the need for an additional drive device, simplifying the structure and reducing energy consumption while also improving system stability and reliability. Furthermore, the controllable intervention mechanism of support block 323 provides operators with flexible options, allowing precise control of the diaphragm B installation length based on construction requirements, enabling various operation modes such as segmented or continuous installation.

[0096] Furthermore, magnets with the same magnetic poles may be provided on the opposite side walls of the first guide plate 321 and the second guide plate 322 to provide a force for separating the two, thereby improving the ease of use of the vertical plastic laying device 3 .

[0097] Furthermore, this design is particularly suitable for complex geological conditions. For example, in soil environments with varying densities or moisture contents, the compressive force on the guide plate varies. However, by properly setting the release timing of the support block 323 and the initial spacing between the guide plates, the stability and consistency of the disconnection action can be ensured. This not only improves the versatility of the device but also enhances the controllability and safety of the treatment process.

[0098] In summary, the design of disconnection mechanism 32, based on the linkage between extrusion surface 32b and support block 323, combines intelligent response and manual intervention to the disconnection action during diaphragm B installation, significantly enhancing the functional integrity and automation level of vertical paving device 3. This design not only helps improve construction efficiency and precision, but also effectively copes with various complex working conditions, enhancing the stability and adaptability of the system. It provides more advanced and efficient technical support for saline-alkali land enclosure and management projects, and has broad application prospects and promotional value.

[0099] Example 4:

[0100] Reference Figure 3-Figure 8 In addition to all the technical solutions of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0101] The vertical paving device 3 also includes a guide member 5, which is fixedly connected to the outer wall of the shell 31 on one side close to the ditching device 1, and a guide surface 5a is formed on the guide member 5, which can guide the soil outward and extends vertically; the guide member 5 includes a third guide plate 51 and a fourth guide plate 52, both of which extend vertically. Both are connected to the outer wall of the shell 31 on one side close to the ditching device 1, and the outer walls of the two are far away from each other to form a guide surface 5a.

[0102] In this embodiment, the guide member 5 is primarily used to effectively guide and channel the soil ahead of the device during its movement, preventing clods of soil or impurities from accumulating around the housing 31 and ensuring that the travel resistance of the vertical paving device 3 remains within a specified range. The guide surface 5a extends vertically and has a predetermined inclination. This naturally diverts the soil ahead to the sides as the device advances with the trenching equipment, preventing soil accumulation, blockage, and additional resistance to the housing 31. This design not only helps maintain a clean and smooth working path, but also reduces power loss during operation, improving overall construction efficiency and stability.

[0103] The front ends of the third guide plate 51 and the fourth guide plate 52 can be designed to be wedge-shaped or arc-shaped to enhance their ground-breaking ability and reduce entry resistance, so that the entire guide member 5 can still maintain good working performance under complex geological conditions.

[0104] Furthermore, the guide surface 5a is preferably treated with a wear-resistant, anti-stick material to reduce friction with the soil, preventing soil adhesion and caking, which could reduce the guiding function. This feature is particularly important in environments with easily compacted and sticky soil, such as saline-alkali land, as it can significantly improve the equipment's passability and continuous operation capabilities.

[0105] The installation of this guide member 5 enhances the system's environmental adaptability during vertical paving operations. This not only effectively ensures a clear and stable path for the diaphragm B placement, but also reduces equipment stalls and misalignment caused by external interference, improving construction accuracy and continuity. This structure, in conjunction with the disconnect mechanism 32, the sliding guide plate, and the magnetic housing 31, further enhances the overall functionality and automation level of the vertical paving device 3.

[0106] Example 5:

[0107] Figures 1-9 An embodiment of the present invention provides a saline-alkali land sealing and management method, which is applied to the saline-alkali land sealing and management system in any of the above embodiments. The method includes:

[0108] S1: Open the initial trench on the intended land;

[0109] S2: Determine whether pipe laying or vertical plastic laying is required;

[0110] S3.1: When pipe laying is required, the saline-alkali land sealing and management system shall enter the pipe laying state and be placed in the initial trench;

[0111] S3.2: When vertical paving operation is required, the saline-alkali land sealing and management system is put into the paving state and placed in the initial groove. The end of the diaphragm B is pulled out from the output port 31a and fixed on the side wall of the initial groove.

[0112] S4: The trenching device 1 is continuously moved in the soil to perform corresponding pipe laying operations or vertical plastic laying operations;

[0113] S5.1: When the corresponding pipe laying operation is performed and the laying is completed, the trenching device 1 and the vertical paving device 3 are separated from the soil upwards, and the drainage pipe A laid by the pipe laying device 2 is cut off;

[0114] S5.2: When the corresponding vertical paving operation is performed and completed, the trenching device 1 continues to move in the soil, and the support block 323 is disengaged from the disconnection channel C to disconnect the unfolded diaphragm B, and then the trenching device 1 and the vertical paving device 3 are separated from the soil upward.

[0115] In this embodiment, the method achieves effective zoning management of saline-alkali soil through reasonable process arrangement and coordination of functional modules, thereby improving overall construction efficiency and engineering adaptability.

[0116] First, step S1 is executed to open an initial trench on a predetermined land area. This step can be performed manually, and the depth and width can be adjusted according to the soil characteristics and treatment requirements of different regions.

[0117] Then, step S2 is executed to determine what kind of operation is to be performed.

[0118] If pipe laying is determined to be necessary, step S3.1 is executed, switching the system to pipe laying mode. Pipe laying device 2 is connected to the rear end of trenching device 1, allowing the entire system to enter the initial trench and prepare for pipe laying. At this point, trenching device 1 continues to advance while pipe laying device 2 simultaneously lays drainage pipe A at the bottom of the trench, achieving continuous operation.

[0119] When it is determined that vertical paving operation is required, step S3.2 is executed to switch the system to the paving state, connect the vertical paving device 3 in place, and pull the end of the diaphragm B stored in the form of a scroll in the shell 31 out from the output port 31a and fix it on one side wall of the initial groove to prepare for subsequent automatic unfolding and paving.

[0120] Next, in step S4, regardless of the operating state, the trenching device 1 continuously advances through the soil, driving the corresponding pipe-laying or plastic-laying devices to operate synchronously. In the pipe-laying state, drainage pipe A is continuously laid within the trench, forming an effective drainage channel. In the plastic-laying state, as the device advances, the diaphragm B steadily unfolds and extends outward from the outlet 31a, laying vertically along the trench sidewalls, gradually forming an impermeable barrier to prevent salt migration. This continuous operation not only improves construction efficiency but also ensures the accuracy and consistency of the laying path.

[0121] After the pipe laying operation is completed, step S5.1 is executed to slowly separate the trenching device 1 and the pipe laying device 2 from the soil upwards, and cut off the laid drainage pipe A at a suitable position to complete the single-section construction.

[0122] When the vertical paving operation is completed, step S5.2 is executed to continue to keep the trenching device 1 moving a certain distance in the soil, and then control the support block 323 to be removed from between the first guide plate 321 and the second guide plate 322, so that the disconnection mechanism 32 is closed under the action of external soil pressure, quickly cutting off the diaphragm B material being output, and then lifting the entire system upward out of the soil to complete a complete paving cycle.

[0123] This treatment method has significant technical advantages. First, it can complete multiple treatment tasks through a single system, avoiding the efficiency loss and cost increase caused by frequent equipment replacement in traditional construction. Secondly, an automatic disconnection mechanism is used in the vertical paving process, combined with the linkage control of the guide plate and the soil reaction force, to achieve the control of the laying length of the diaphragm B, thereby improving the construction quality and automation level. In addition, the vertical arrangement design of the diaphragm B is combined with the openable and closable structure of the shell 31, making the filling and replacement of the diaphragm B more convenient, shortening the maintenance cycle, and further improving the practicality of the equipment.

[0124] In summary, this method not only optimizes the traditional process for saline-alkali land remediation but also demonstrates promising application prospects in terms of improving construction efficiency, reducing operating costs, and enhancing operational flexibility. It is particularly suitable for saline-alkali land remediation projects involving large areas and complex terrain, and has important practical significance and technological dissemination value for promoting the sustainable use of land resources and improving the agricultural ecological environment.

[0125] It can be understood that, except for any conflicting parts, the above-mentioned embodiments 1-5 can be freely combined to form other implementation methods of the present invention.

[0126] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0127] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0128] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0129] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0130] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A saline-alkali land sealing and management system, characterized by: The system comprises a trenching device (1), a pipe laying device (2) and a vertical plastic laying device (3), wherein the pipe laying device (2) and the vertical plastic laying device (3) can be selectively connected to the rear end of the trenching device (1) so that the saline-alkali land sealing and treatment system can enter a pipe laying state or a plastic laying state; The pipe laying device (2) is suitable for laying a drainage pipe (A); The vertical plastic laying device (3) comprises a shell (31) connected to the rear end of the trenching device (1); a diaphragm (B) stored in a scroll shape is provided in the inner cavity of the shell (31); the axis of the diaphragm (B) extends vertically; an output port (31a) is provided on the shell (31); and the unfolded diaphragm (B) can be output from the output port (31a).

2. The saline-alkali land sealing and management system according to claim 1, characterized in that: It also includes a connecting piece (4), and the pipe laying device (2) and the vertical plastic laying device (3) can be vertically swingably connected to the rear end of the trenching device (1) through the connecting piece (4).

3. The saline-alkali land sealing and management system according to claim 2, characterized in that: The housing (31) comprises a first half-shell (311) and a second half-shell (312) hinged along a vertical axis; the first half-shell (311) and the second half-shell (312) can be swung together to put the housing (31) into a storage state, and can also be swung apart to put the housing (31) into a maintenance state; The housing (31) further includes a retaining member (313), and in the stored state, the retaining member (313) restricts the first half shell (311) and the second half shell (312) from swinging apart.

4. The saline-alkali land sealing and management system according to claim 3, characterized in that: The retaining member (313) includes a first magnetic member (3131) and a second magnetic member (3132) which are respectively fixedly connected to the first half shell (311) and the second half shell (312), and the first magnetic member (3131) and the second magnetic member (3132) can be attracted to each other.

5. The saline-alkali land sealing and management system according to claim 3, characterized in that: The vertical paving device (3) further comprises a disconnection mechanism (32), wherein the disconnection mechanism (32) is adapted to disconnect the unfolded diaphragm (B) at the rear side of the output port (31a); The disconnect mechanism (32) comprises a first guide plate (321) and a second guide plate (322) both extending vertically. The housing (31) is cylindrical. The first guide plate (321) and the second guide plate (322) are both circumferentially slidably connected to an outer wall of the housing (31) away from the trenching device (1), and a disconnect channel (C) is formed therebetween. The disconnect channel (C) corresponds to a rear side position of the output port (31a). The first guide plate (321) and the second guide plate (322) can approach or separate from each other so that the disconnection channel (C) can be switched between a closed state capable of disconnecting the expanded diaphragm (B) and an open state allowing the expanded diaphragm (B) to pass through.

6. The saline-alkali land sealing and management system according to claim 5, characterized in that: Mutually compatible disconnecting portions (32a) are formed on the opposite side walls of the first guide plate (321) and the second guide plate (322); in the closed state, the two disconnecting portions (32a) are in contact with each other; and in the open state, the two disconnecting portions (32a) are separated from each other.

7. The saline-alkali land sealing and management system according to claim 5, characterized in that: Surfaces of the first guide plate (321) and the second guide plate (322) facing away from each other both form vertically extending extrusion surfaces (32b); When the vertical paving device (3) moves in the soil along with the trenching device (1), the extrusion portion is subjected to pressure from the soil, so that the first guide plate (321) and the second guide plate (322) maintain a tendency to approach each other; The disconnection mechanism (32) further includes a support block (323), and the support block (323) can be selectively supported in the disconnection channel (C); When the support block (323) is supported between the first guide plate (321) and the second guide plate (322), the disconnection channel (C) maintains the open state; when the support block (323) is separated from between the first guide plate (321) and the second guide plate (322), the pressure from the soil can cause the disconnection channel (C) to enter the closed state, so as to disconnect the diaphragm (B) deployed in the disconnection channel (C).

8. The saline-alkali land sealing and management system according to claim 1, characterized in that: The vertical paving device (3) further comprises a guide member (5), the guide member (5) being fixedly connected to an outer wall of the housing (31) on one side close to the trenching device (1), and a guide surface (5a) extending vertically and capable of guiding soil outward is formed on the guide member (5); The guide member (5) includes a third guide plate (51) and a fourth guide plate (52) both extending vertically, both of which are connected to the outer wall of the housing (31) on one side close to the trenching device (1), and the outer walls of the two that are away from each other form the guide surface (5a).

9. The saline-alkali land sealing and management system according to any one of claims 3 to 8, characterized in that: The output port (31a) is located at the rear side of the shell (31), and both the first half shell (311) and the second half shell (312) are formed with a clearance groove. When the shell (31) enters the storage state, the two clearance grooves are engaged with each other to form the output port (31a).

10. A method for sealing and managing saline-alkali land, applied to the saline-alkali land sealing and management system according to claim 7, the method comprising: S1: Open the initial trench on the intended land; S2: Determine whether pipe laying or vertical plastic laying is required; S3.1: When pipe laying is required, the saline-alkali land sealing and treatment system enters the pipe laying state and is placed in the initial trench; S3.2: When vertical paving operation is required, the saline-alkali land sealing and management system is put into the paving state and is placed in the initial groove, and the end of the diaphragm (B) is fixed on the side wall of the initial groove after being pulled out of the output port (31a). S4: the trenching device (1) is continuously moved in the soil to perform corresponding pipe laying operations or vertical plastic laying operations; S5.1: When the corresponding pipe laying operation is performed and the laying is completed, the trenching device (1) and the vertical laying device (3) are separated from the soil upwards, and the drainage pipe (A) laid by the pipe laying device (2) is cut off; S5.2: When the corresponding vertical paving operation is performed and the paving is completed, the trenching device (1) is allowed to continue to move in the soil, and the support block (323) is separated from the disconnection channel (C) to disconnect the unfolded diaphragm (B), and then the trenching device (1) and the vertical paving device (3) are separated from the soil upward.

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