Soil remediation device and method based on land improvement planning

Abstract

The invention relates to the technical field of soil remediation, and discloses a soil remediation device and method based on land improvement planning. The device comprises a moving trolley, a shell, a movable plate assembly, an insertion rod, a rotating expansion mechanism, a repairing agent conveying system and a limiting reset mechanism. An inserting rod is hydraulically driven to be inserted into soil, a transmission mechanism drives a rotating plate to expand to form a cavity, and a repairing agent is accurately injected into the deep layer of the soil through a conveying system; in the lifting process, the limiting mechanism keeps the rotating plate in an expanded state to loosen soil and improve the soil structure. According to the device, deep and uniform injection of a repairing agent is achieved, the problems of loss and degradation caused by surface spraying are effectively avoided, meanwhile, the device has the soil loosening function, the repairing efficiency and quality are greatly improved, and the device is suitable for large-scale land improvement engineering.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soil remediation, and in particular to a soil remediation device and method based on land consolidation planning. BACKGROUND

[0002] In the process of land consolidation and ecological restoration, soil pollution and degradation problems are increasingly prominent. At present, soil remediation is mainly divided into ex-situ remediation and in-situ remediation. Ex-situ remediation is to transfer the contaminated soil to another place for treatment, although the effect is more thorough, but the cost is high, the engineering quantity is large and easy to cause secondary pollution; in-situ remediation is directly operated in the contaminated site, which has the advantages of low cost, simple construction, small disturbance to soil and surrounding environment, etc., therefore, in-situ remediation becomes a more popular choice in the case of not particularly serious pollution.

[0003] However, the existing in-situ remediation technology still has obvious limitations: the remediation agent is mainly sprayed on the surface or stirred in the shallow layer, which is easy to be affected by evaporation, rainfall runoff and ultraviolet radiation, and difficult to be accurately delivered to the deep soil; during the remediation process, uniform dispersion of the remediation agent cannot be achieved, resulting in blind area of remediation or uneven concentration; at the same time, the conventional injection or stirring operation causes great damage to the soil structure, and even causes hardening, which is not conducive to ecological restoration.

[0004] Therefore, it is urgent to develop an equipment and method which can be integrated into land consolidation planning, suitable for in-situ remediation scene, and can realize deep, uniform and low disturbance of the remediation agent, so as to improve the actual effect and application range of in-situ remediation, and support efficient, green and sustainable management of contaminated sites. SUMMARY

[0005] The technical problem to be solved by the present application is the poor effect of surface spraying of remediation agent in the prior art. To solve the above-mentioned technical problem, the present application provides a soil remediation device and method based on land consolidation planning.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a soil remediation device based on land consolidation planning, comprising a mobile vehicle and a shell; a remediation agent storage tank is installed at the rear of the moving direction of the mobile vehicle, and an air pump in communication with the remediation agent storage tank is also installed on the mobile vehicle; an adjusting arm is installed at the front of the moving direction of the mobile vehicle, and the shell is installed on the output end of the adjusting arm. The shell is a semi-closed shell with an open bottom, the shell is internally connected with an upper movable plate and a lower movable plate in a sliding mode, the upper movable plate is above the lower movable plate, a hydraulic telescopic rod is installed on the inner wall of the top of the shell, and the output end of the hydraulic telescopic rod is connected with the upper movable plate; the upper movable plate is uniformly distributed with a plurality of insertion rods below, the insertion rods penetrate through the lower movable plate downward and extend below the lower movable plate, the bottom of the insertion rod is provided with a pointed end, the diameter of the lower part of the insertion rod is smaller than the diameter of the middle part of the insertion rod, a plurality of groups of rotating plates are rotatably connected to the lower part of the outer part of the insertion rod in a radial mode, the inner part of the insertion rod is movably provided with a sliding block, and the inner part of the insertion rod is provided with a rotating groove for the rotation of the end part of the rotating plate, a sliding groove for the up-and-down sliding of the sliding block and a radial distribution of a conveying flow channel; The sliding block is movably connected with the end part of the rotating plate, one end of the conveying flow channel is communicated with the outside from the lower outer wall of the insertion rod, and the other end is communicated with the outside from the upper part of the insertion rod; a transmission mechanism is arranged between the lower movable plate and the insertion rod, the transmission mechanism comprises a rack fixedly installed on the top of the lower movable plate, a sliding rod slidably connected to the middle part of the insertion rod, a toothed plate slidably arranged and a spur gear rotatably connected, the bottom of the sliding rod is fixedly connected with the sliding block, the toothed plate is fixedly arranged on the edge of the top of the sliding rod, and the spur gear is meshingly connected with the toothed plate and the rack; a return spring and a limiting mechanism are arranged between the upper movable plate and the lower movable plate, the limiting mechanism comprises a movable groove vertically penetrating the upper movable plate and a limiting plate fixedly installed on the top of the lower movable plate, a limiting block is movably arranged in the limiting plate, a compression spring is arranged between the limiting block and the limiting plate, a limiting locking plate corresponding to the limiting block is arranged on the inner wall of the movable groove, and an unlocking plug is installed on the inner wall of the top of the shell.

[0007] Preferably, the inner part of the insertion rod is sequentially provided with an inner sliding groove, a gear groove and an outer sliding groove from the inner part to the outer part of the upper part, the groove width of the outer sliding groove is matched with the thickness of the rack, the groove width of the inner sliding groove is matched with the thickness of the toothed plate, the groove depth of the gear groove is matched with the radius of the spur gear, the rack is slidably connected in the outer sliding groove, the toothed plate is slidably connected in the inner sliding groove, and the spur gear is rotatably connected in the gear groove.

[0008] Preferably, the inner part of the limiting plate is provided with a limiting groove horizontally communicated with the outside, the length of the limiting groove is matched with the length of the limiting block, the limiting block is slidably connected in the limiting groove and extends to the outside from the side of the limiting plate, and the two ends of the compression spring are fixedly connected with the side wall of the limiting block and the inner wall of the limiting groove respectively.

[0009] Preferably, the limiting block is a right trapezoid in cross section, the top of the limiting locking plate corresponds to the bottom section of the part of the limiting block extending out of the limiting plate, and the thickness of the limiting locking plate is matched with the length of the part of the limiting block extending out of the limiting plate; the bottom side of the unlocking plug is an inclined surface, the part of the limiting block located outside the limiting plate is provided with an inclined surface matched with the inclined surface of the unlocking plug, and the inclination angles of the two inclined surfaces are consistent.

[0010] Preferably, the outer shell is provided with a total conveying pipe, the pipe diameter of the total conveying pipe is matched with the discharge port diameter of the repair agent storage tank, the inner part of the outer shell is uniformly distributed with branch conveying pipes, the number of the branch conveying pipes is consistent with the number of the insertion rods, and one end of the branch conveying pipes is communicated with the total conveying pipe and the other end is communicated with the conveying flow channel of the insertion rod.

[0011] Preferably, the inner wall of the repair agent storage tank is provided with a corrosion-resistant coating for matching the storage of granular or liquid soil solidification stabilizer; the output end of the air pump is communicated with the top of the repair agent storage tank through an air pipe, and the repair agent storage tank, the total conveying pipe, the branch conveying pipe and the conveying flow channel jointly constitute a repair agent conveying passage.

[0012] Preferably, the modulus of the spur gear is consistent with the modulus of the toothed plate and the toothed rack, and the number of teeth of the spur gear is matched with the number of teeth of the toothed plate and the toothed rack, so as to ensure the stable meshing transmission of the spur gear, the toothed plate and the toothed rack.

[0013] Preferably, a sealing sleeve is arranged at the penetrating position of the insertion rod and the lower movable plate, the material of the sealing sleeve is wear-resistant rubber, and the sealing sleeve is used for avoiding the entry of soil impurities into the cooperation gap between the insertion rod and the lower movable plate.

[0014] Preferably, the two ends of the reset spring are respectively welded and fixed with the bottom of the upper movable plate and the top of the lower movable plate, and the natural length of the reset spring is matched with the initial spacing of the upper movable plate and the lower movable plate.

[0015] Another technical scheme is provided in the application: a soil remediation method based on land consolidation planning, comprising the following steps: S1. moving the device to the area to be repaired by the mobile vehicle, and adjusting the position of the outer shell by the adjusting arm; S2. starting the hydraulic telescopic rod to push the upper movable plate and the lower movable plate to move downward, so that the insertion rod is inserted into the soil; S3. when the lower movable plate contacts the ground, the upper movable plate continues to move downward, the toothed plate, the sliding rod and the sliding block are driven to move downward by the meshing of the toothed rack and the spur gear, so that the rotating plate expands to form a cavity; S4. starting the air pump to pressurize the repair agent storage tank, so that the repair agent is injected into the soil cavity through the conveying system and the conveying flow channel; S5. the hydraulic telescopic rod drives the upper movable plate and the lower movable plate to rise, and the limiting mechanism keeps the rotating plate in the expanded state to loosen the soil; S6. when the upper movable plate rises to contact the inner wall of the top of the outer shell, the unlocking block is pressed to make the limiting block retract into the limiting groove, the distance between the upper movable plate and the lower movable plate is increased by the reset spring, and the rotating plate is retracted.

[0016] The technical effects and advantages of the application are as follows: In the application, the accurate injection and uniform diffusion of the repair agent in the deep soil are realized by setting the insertion rod with the expandable rotating plate, the transmission mechanism and the limiting mechanism; after the insertion rod is driven by the hydraulic pressure to penetrate into the soil, the rotating plate is expanded to form a cavity, and the repair agent is directly injected through the internal flow channel, thereby effectively avoiding the evaporation loss and ultraviolet degradation caused by surface spraying; The design of maintaining the expanded state of the rotating plate during the rising process is adopted, the loosening operation is simultaneously completed when leaving the soil, the soil permeability and permeability are significantly improved, the sufficient reaction of the repair agent and the soil is ensured, the damage of the secondary tillage to the soil structure is avoided, the repair efficiency and quality are greatly improved, and the application is especially suitable for large-scale land reclamation projects. BRIEF DESCRIPTION OF DRAWINGS

[0017] The disclosure of the application will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the scope of protection of the application. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 It is a schematic diagram of the overall structure of the application; Figure 2 It is a schematic diagram of the shell structure of the application; Figure 3 It is a split structure diagram of the shell, the hydraulic telescopic rod, the upper movable plate and the lower movable plate of the application; Figure 4 It is a schematic diagram of the structure of the hydraulic telescopic rod, the upper movable plate and the lower movable plate of the application; Figure 5 It is a front view of the structure of the upper movable plate, the lower movable plate and the insertion rod of the application; Figure 6 It is a sectional view of the structure of the upper movable plate, the lower movable plate and the limiting mechanism of the application; Figure 7 It is a Figure 6 It is an enlarged view of structure A in the application; Figure 8 It is a schematic diagram of the structure of the insertion rod and the transmission mechanism of the application; Figure 9 It is a split structure diagram of the insertion rod, the rotating plate and the transmission mechanism of the application; Figure 10 It is a sectional view of the front view angle structure of the insertion rod of the application; Figure 11 It is a half-sectional state diagram of the insertion rod of the application.

[0018] Legend: 1. Mobile vehicle; 11. Repair agent storage tank; 12. Air pump; 13. Adjusting arm; 2. Outer shell; 21. Main delivery pipe; 22. Branch delivery pipe; 3. Hydraulic telescopic rod; 4. Upper movable plate; 5. Lower movable plate; 6. Insert rod; 61. Rotating groove; 62. Sliding groove; 63. Delivery channel; 64. Gear groove; 65. Outer sliding groove; 66. Inner sliding groove; 67. Sliding rod; 68. Sliding block; 69. Tip; 7. Rotating plate; 8. Transmission mechanism; 81. Gear plate; 82. Spur gear; 83. Rack; 9. Limiting mechanism; 91. Movable groove; 92. Limiting plate; 93. Limiting groove; 94. Limiting block; 95. Compression spring; 96. Limiting locking plate; 97. Unlocking insert; 10. Return spring. Detailed Implementation

[0019] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0020] Reference Figures 1-11 As shown, the present invention provides a technical solution: a soil remediation device based on land consolidation planning, comprising a mobile vehicle 1 and a shell 2. The mobile vehicle 1 serves as the carrier of the entire device and can easily move the device to the area to be remediated.

[0021] like Figure 1 As shown, a remediation agent storage tank 11 is installed at the rear of the mobile vehicle 1 in the direction of movement. It is used to store the remediation agent to be injected into the soil, such as granular or liquid soil stabilizer. In order to ensure that the remediation agent can be delivered smoothly, an air pump 12 connected to the remediation agent storage tank 11 is also installed on the mobile vehicle 1. The air pump 12 is connected to the remediation agent storage tank 11 and is used to pressurize the inside of the remediation agent storage tank 11 so that the remediation agent can be delivered through the delivery pipe under pressure. An adjusting arm 13 is installed at the front of the mobile vehicle 1 in the direction of movement. The adjusting arm 13 can adjust the position and angle of the outer shell 2 according to actual needs to adapt to different terrains and remediation depth requirements.

[0022] like Figures 2-5As shown, the shell 2 is a semi-closed shell with an open bottom, the inside of the shell 2 is slidingly connected with an upper movable plate 4 and a lower movable plate 5, and the upper movable plate 4 is above the lower movable plate 5, the top inner wall of the shell 2 is installed with a hydraulic telescopic rod 3, the output end of the hydraulic telescopic rod 3 is connected with the upper movable plate 4, and the insertion, expansion, loosening and pulling out of the insertion rod 6 are realized through the telescopic action thereof, the lower movable plate 5 is uniformly distributed with the insertion rod 6, and the insertion rod 6 penetrates through the lower movable plate 5 downward and extends below the lower movable plate 5, and the insertion rod 6 is used for piercing the soil and delivering the soil solidification stabilizer into the soil.

[0023] As shown, Figures 9-10 In order to facilitate insertion into the soil, the bottom of the insertion rod 6 is provided with a pointed end 69, the diameter of the lower part of the outer part of the insertion rod 6 is smaller than the diameter of the middle part thereof, the increased thickness of the rotating plate 7 is avoided to make the insertion rod 6 bulge, the lower part of the outer part of the insertion rod 6 is rotatably connected with the rotating plate 7, the rotating plate 7 is radially distributed with multiple groups, one end of the rotating plate 7 is located in the inner part of the insertion rod 6, the inner part of the insertion rod 6 is provided with a rotating groove 61 for the end of the rotating plate 7 to rotate, the inner part of the insertion rod 6 is further provided with a sliding groove 62, the inner part of the sliding groove 62 is slidingly connected with a sliding block 68, the sliding block 68 is movably connected with the end of the rotating plate 7, and the sliding block 68 can drive the multiple groups of rotating plates 7 to rotate and expand when sliding in the sliding groove 62, the inner part of the insertion rod 6 is further radially distributed with a delivery channel 63, one end of the delivery channel 63 is in communication with the outside from the lower outer wall of the insertion rod 6, and the other end is in communication with the outside from the upper part of the insertion rod 6, forming a complete delivery path for the repair agent.

[0024] The outer part of the shell 2 is provided with a total delivery pipe 21, one end of the total delivery pipe 21 is in communication with the repair agent storage tank 11, the inner part of the shell 2 is uniformly distributed with branch delivery pipes 22, one end of the branch delivery pipe 22 is in communication with the total delivery pipe 21, and the other end of the branch delivery pipe 22 is in communication with the delivery channel 63, the inside of the repair agent storage tank 11 is pressurized by the air pump 12, so that the soil solidification stabilizer in the repair agent storage tank 11 enters the inside of the delivery channel 63 through the total delivery pipe 21 and the branch delivery pipe 22, and is injected into the soil when the rotating plate 7 expands, compared with the prior art, the soil solidification stabilizer can be prevented from being directly sprayed on the surface of the soil and being affected by ultraviolet radiation, evaporation, etc.; in actual operation, the repair agent storage tank 11 is pressurized by the air pump 12, and the repair agent enters the delivery channel 63 of the insertion rod 6 through the total delivery pipe 21 and the branch delivery pipe 22 under the action of pressure, and is finally injected into the soil cavity from the lower outer wall of the insertion rod 6.

[0025] As shown, Figures 8-11As shown, the transmission mechanism 8 is arranged between the lower movable plate 5 and the plug rod 6, the inside of the plug rod 6 is sequentially provided with an inner sliding groove 66, a gear groove 64 and an outer sliding groove 65 from top to bottom, the transmission mechanism 8 comprises a rack 83 fixedly installed on the top of the lower movable plate 5, the rack 83 is slidingly connected in the inner sliding groove 65, further comprises a sliding rod 67 slidingly connected in the middle of the plug rod 6, the bottom of the sliding rod 67 is fixedly connected with a sliding block 68, the top edge of the sliding rod 67 is fixedly connected with a toothed plate 81, the toothed plate 81 is slidingly arranged in the inner sliding groove 66, a spur gear 82 is rotatably connected in the inner sliding groove 64, the spur gear 82 is meshingly connected with the toothed plate 81 and the rack 83, when the upper movable plate 4 and the lower movable plate 5 move downward, after the lower movable plate 5 contacts the ground and cannot continue to move, the upper movable plate 4 drives the plug rod 6 to continue to move downward, so as to reduce the distance between the lower movable plate 5 and the upper movable plate 4, and then make the rack 83 mesh the spur gear 82 to rotate, and then make the toothed plate 81, the sliding rod 67 and the sliding block 68 move downward, so as to open the rotating plate 7 in the process of moving downward, form a hollow area, and facilitate the soil stabilizer to be applied in the soil.

[0026] As Figures 6-7As shown, the reset spring 10 is arranged between the upper movable plate 4 and the lower movable plate 5, and the limiting mechanism 9 is further arranged between the upper movable plate 4 and the lower movable plate 5, the limiting mechanism 9 is used for locking the distance between the upper movable plate 4 and the lower movable plate 5 during the reset process of the hydraulic telescopic rod 3, the upper movable plate 4, the lower movable plate 5 and the inserting rod 6, and keeping the rotating plate 7 in the open state, so that the rotating plate 7 on the inserting rod 6 can bring up the soil, and play the role of loosening the soil, so that when subsequent irrigation, the water can uniformly dilute the soil solidification stabilizer below, so that the soil solidification stabilizer reacts with the soil, avoids the runoff of water on the soil surface, and affects the uniformity of the repair, the limiting mechanism 9 comprises the movable groove 91 which is arranged on the upper movable plate 4 in a penetrating mode, further comprises the limiting plate 92 which is fixedly installed on the top of the lower movable plate 5, the limiting groove 93 which is horizontally and externally communicated is arranged on the inside of the limiting plate 92, the limiting block 94 is slidably connected in the limiting groove 93, the limiting block 94 extends out from the side of the limiting plate 92, the compression spring 95 is arranged between the limiting block 94 and the inner wall of the limiting groove 93, the cross section of the limiting block 94 is a right trapezoid, the limiting mechanism 9 further comprises the limiting locking plate 96 which is fixedly installed on the inner wall of the movable groove 91, the top of the limiting locking plate 96 is correspondingly arranged with the bottom section of the part of the limiting block 94 which extends out from the limiting plate 92, the limiting mechanism 9 further comprises the unlocking plug 97 which is installed on the inner wall of the top of the shell 2, the bottom side of the unlocking plug 97 is a slope, the part of the limiting block 94 which is located outside the limiting plate 92 is provided with a slope, the unlocking plug 97 is positionally staggered with the limiting locking plate 96, avoiding that the limiting locking plate 96 blocks the unlocking plug 97, after the hydraulic telescopic rod 3 drives the upper movable plate 4, the lower movable plate 5 and the inserting rod 6 to move downward by a distance, the part of the inserting rod 6 enters the soil, the lower movable plate 5 is blocked by the ground and no longer moves downward, the upper movable plate 4 and the inserting rod 6 continue to move downward under the pushing of the hydraulic telescopic rod 3, the rotating plate 7 expands, and the limiting block 94 moves to the top of the limiting locking plate 96 under the elastic force of the compression spring 95, at this time, the distance between the upper movable plate 4 and the lower movable plate 5 is in the minimum state, when the hydraulic telescopic rod 3 drives the upper movable plate 4, the lower movable plate 5 and the inserting rod 6 to reset upward, the limiting locking plate 96 blocks the limiting block 94, the distance between the upper movable plate 4 and the lower movable plate 5 is still in the minimum state, and the rotating plate 7 is still in the expanded state, and when rising, the soil can be scattered, when the hydraulic telescopic rod 3 drives the upper movable plate 4 to move upward to the top of the shell 2, the unlocking plug 97 presses the slope of the limiting block 94, so that the limiting block 94 resets and retracts into the limiting groove 93, and under the action of the reset spring 10, the distance between the upper movable plate 4 and the lower movable plate 5 becomes larger, and the rotating plate 7 resets from the expanded state to the contracted state.

[0027] The application also provides a soil repair method based on the soil repair device. S1. Move the device to the area to be repaired by moving the vehicle 1, and adjust the position of the shell 2 by adjusting the arm 13; Before the repair operation starts, the operator first transports the entire soil remediation device to the specific area that needs to be repaired by moving the vehicle 1; after arriving at the target area, the insertion position and angle of the shell 2 are accurately adjusted by the adjusting arm 13 according to the scope, depth and terrain characteristics of soil pollution, ensuring that the insertion rod 6 is in contact with the ground; S2. Start the hydraulic telescopic rod 3 to push the upper movable plate 4 and the lower movable plate 5 to move downward, so that the insertion rod 6 is inserted into the soil; After the position adjustment is completed, start the hydraulic telescopic rod 3; the hydraulic telescopic rod 3 is extended downward, driving the upper movable plate 4 connected thereto to move downward; the downward movement of the upper movable plate 4 will simultaneously drive the lower movable plate 5 and the insertion rod 6 to move downward; the tip portion 69 at the bottom of the insertion rod 6 is designed to facilitate its smooth penetration into the soil, and the insertion rod 6 is inserted into the soil to the preset depth; S3. When the lower movable plate 5 contacts the ground, the upper movable plate 4 continues to move downward, driving the toothed plate 81, the sliding rod 67 and the sliding block 68 to move downward through the meshing of the rack 83 and the spur gear 82, so that the rotating plate 7 expands to form a cavity; When the insertion rod 6 is inserted into the soil to a certain depth, the lower movable plate 5 contacts the ground or stops moving downward due to encountering greater resistance, the hydraulic telescopic rod 3 continues to push the upper movable plate 4 downward; at this time, the distance between the upper movable plate 4 and the lower movable plate 5 starts to decrease; since the rack 83 is fixed on the lower movable plate 5, and the toothed plate 81 is fixed on the sliding rod 67 which moves with the upper movable plate 4, the spur gear 82 is meshed with the rack 83 and the toothed plate 81 at the same time; the relative downward movement of the upper movable plate 4 will drive the spur gear 82 to rotate, thereby driving the toothed plate 81, the sliding rod 67 and the sliding block 68 to move downward; the downward movement of the sliding block 68 drives the radially distributed multiple sets of rotating plates 7 to expand outward through the movable connection of the sliding block 68 with the rotating plate 7, forming a cavity in the soil for injecting the remediation agent; at the same time, the limiting block 94 in the limiting mechanism 9 is ejected under the action of the compression spring 95, clamping into the upper part of the limiting locking plate 96, locking the upper movable plate 4 and the lower movable plate 5 in the minimum spacing state, ensuring that the rotating plate 7 remains expanded; S4. Start the air pump 12 to pressurize the remediation agent storage tank 11, so that the remediation agent is injected into the soil cavity through the delivery system via the delivery flow channel 63; After the cavity is formed, start the air pump 12 on the moving vehicle 1; the air pump 12 pressurizes the inside of the remediation agent storage tank 11, so that the granular or liquid remediation agent stored therein is injected into the delivery flow channel 63 inside the insertion rod 6 under the action of pressure through the main delivery pipe 21 and the branch delivery pipe 22; the remediation agent is finally sprayed out from the lower outlet of the delivery flow channel 63, uniformly injected into the soil cavity formed by the expansion of the rotating plate 7, realizing the deep and accurate application of the remediation agent; S5. The hydraulic telescopic rod 3 drives the upper movable plate 4 and the lower movable plate 5 to rise, and the limiting mechanism 9 keeps the rotating plate 7 in the expanded state to loosen the soil; After the repair agent injection is completed, the hydraulic telescopic rod 3 reverses the action and shrinks upward, driving the upper movable plate 4 and the lower movable plate 5 to move upward as a whole to start pulling out the insertion rod 6 from the soil; in this process, since the limiting mechanism 9 has locked the upper movable plate 4 and the lower movable plate 5 in the minimum spacing state, the rotating plate 7 still remains in the expanded state; therefore, when the insertion rod 6 moves upward with the expanded rotating plate 7, the rotating plate 7 will produce stirring and cutting effects on the surrounding soil, effectively loosening the hardened soil, increasing the porosity of the soil, improving the soil structure, and being conducive to the further penetration and diffusion of the subsequent water and repair agent; S6. When the upper movable plate 4 rises to contact the inner wall of the top of the shell 2, the unlocking block 97 extrudes the limiting block 94 to retract into the limiting slot 93, and the return spring 10 pushes the upper movable plate 4 and the lower movable plate 5 to increase the spacing, and the rotating plate 7 is retracted; When the hydraulic telescopic rod 3 continues to shrink upward, so that the upper movable plate 4 rises to its top and contacts the inner wall of the top of the shell 2, the unlocking block 97 installed on the inner wall of the top of the shell 2 will accurately contact and extrude the inclined surface of the limiting block 94; due to the adaptation of the unlocking block 97 and the inclined surface of the limiting block 94, the extrusion effect will overcome the elastic force of the compression spring 95, so that the limiting block 94 retracts inwardly into the limiting slot 93, thereby releasing the locking of the upper movable plate 4 and the lower movable plate 5; once the locking is released, the elastic force of the return spring 10 will immediately act to push the spacing between the upper movable plate 4 and the lower movable plate 5 to return to the initial larger state; with the increase of the spacing between the two movable plates, the sliding block 68 moves upward, driving the rotating plate 7 to retract from the expanded state to the retracted state, completing a complete repair cycle and preparing for the next insertion operation.

[0028] The technical scope of the present application is not limited to the content in the above description, and those skilled in the art can make various modifications and changes to the above embodiments without departing from the technical idea of the present application, and these modifications and changes should all be within the protection scope of the present application.

Claims

1. A soil remediation device based on a land reclamation plan, characterized by, The utility model provides a kind of repair agent spraying device, including mobile car and shell;The moving direction rear of the mobile car is equipped with repair agent storage tank, and the mobile car is further equipped with air pump communicated with repair agent storage tank, and the moving direction front of the mobile car is equipped with adjusting arm, and the shell is installed on the output end of adjusting arm; The shell is a semi-closed shell with an open bottom, and the upper movable plate and the lower movable plate are slidably connected inside the shell, with the upper movable plate above the lower movable plate; a hydraulic telescopic rod is installed on the inner wall of the top of the shell, and the output end of the hydraulic telescopic rod is connected with the upper movable plate; the upper movable plate is uniformly distributed with insertion rods below, the insertion rods penetrate through the lower movable plate downward and extend below the lower movable plate, the bottom of the insertion rod is provided with a pointed end, the diameter of the lower part of the insertion rod is smaller than the diameter of the middle part, a plurality of groups of rotating plates are radially rotatably connected to the lower part of the outer part of the insertion rod, a sliding block is movably arranged in the inner part of the insertion rod, and the inner part of the insertion rod is provided with rotating grooves for the rotation of the end part of the rotating plate, sliding grooves for the up-and-down sliding of the sliding block, and radially distributed conveying channels; The sliding block is movably connected with the end part of the rotating plate, one end of the conveying channel is in communication with the outside from the lower outer wall of the insertion rod, and the other end is in communication with the outside from the upper part of the insertion rod; a transmission mechanism is arranged between the lower movable plate and the insertion rod, the transmission mechanism comprises a rack fixedly installed on the top of the lower movable plate, a sliding rod slidably connected in the middle part of the insertion rod, a toothed plate slidably arranged, and a spur gear rotatably connected; the bottom of the sliding rod is fixedly connected with the sliding block, the toothed plate is fixedly arranged on the edge of the top of the sliding rod, and the spur gear is meshingly connected with the toothed plate and the rack; a return spring and a limiting mechanism are arranged between the upper movable plate and the lower movable plate, the limiting mechanism comprises a movable slot vertically penetrating through the upper movable plate and a limiting plate fixedly installed on the top of the lower movable plate, a limiting block is movably arranged in the limiting plate, a compression spring is arranged between the limiting block and the limiting plate, a limiting locking plate corresponding to the limiting block is arranged on the inner wall of the movable slot, and an unlocking plug is installed on the inner wall of the top of the shell.

2. The soil remediation device based on land reclamation planning according to claim 1, characterized in that: The inner part of the insertion rod is sequentially provided with an inner sliding groove, a gear groove and an outer sliding groove from inside to outside above, the groove width of the outer sliding groove is matched with the thickness of the rack, the groove width of the inner sliding groove is matched with the thickness of the toothed plate, the groove depth of the gear groove is matched with the radius of the spur gear, the rack is slidably connected in the outer sliding groove, the toothed plate is slidably connected in the inner sliding groove, and the spur gear is rotatably connected in the gear groove.

3. The soil remediation device based on land reclamation planning according to claim 1, characterized in that: The inner part of the limiting plate is provided with a limiting slot horizontally communicating with the outside above, the length of the limiting slot is matched with the length of the limiting block, the limiting block is slidably connected in the limiting slot and extends to the outside from the side of the limiting plate, and the two ends of the compression spring are fixedly connected with the side wall of the limiting block and the inner wall of the limiting slot, respectively.

4. The soil remediation device based on land reclamation planning according to claim 1, characterized in that: The limiting block is a right trapezoid in cross section, the top of the limiting locking plate corresponds to the bottom section of the part of the limiting block extending out of the limiting plate, and the thickness of the limiting locking plate is matched with the length of the limiting block extending out of the limiting plate; the bottom of the unlocking plug on one side is an inclined surface, the part of the limiting block located outside the limiting plate is provided with an inclined surface matched with the inclined surface of the unlocking plug, and the inclination angles of the two inclined surfaces are consistent.

5. The soil remediation device based on land reclamation planning according to claim 1, characterized in that: The shell is externally provided with a total conveying pipe, the pipe diameter of the total conveying pipe is matched with the discharge port diameter of the repair agent storage tank, the shell is internally uniformly distributed with branch conveying pipes, the number of the branch conveying pipes is consistent with the number of the insertion rods, and one end of the branch conveying pipes is in communication with the total conveying pipe and the other end is in communication with the conveying flow channels of the insertion rods.

6. The soil remediation device based on land reclamation planning according to claim 5, characterized in that: The inner wall of the repair agent storage tank is provided with a corrosion-resistant coating for matching the storage of granular or liquid soil solidification stabilizers; the output end of the air pump is in communication with the top of the repair agent storage tank through an air pipe, and the repair agent storage tank, the total conveying pipe, the branch conveying pipes and the conveying flow channels jointly constitute a repair agent conveying passage.

7. The soil remediation device based on land reclamation planning according to claim 1, characterized in that: The modulus of the spur gear is consistent with the modulus of the toothed plate and the toothed rack, and the number of teeth of the spur gear is matched with the number of teeth of the toothed plate and the number of teeth of the toothed rack, so as to ensure the stable meshing transmission of the spur gear, the toothed plate and the toothed rack. 8.The soil remediation device based on land reclamation planning according to claim 1, wherein: The penetration of the insertion rod and the lower movable plate is provided with a sealing sleeve, the material of the sealing sleeve is wear-resistant rubber, and the sealing sleeve is used for avoiding the entry of soil impurities into the cooperation gap of the insertion rod and the lower movable plate. 9.The soil remediation device based on land reclamation planning according to claim 1, wherein: The two ends of the reset spring are respectively welded and fixed with the bottom of the upper movable plate and the top of the lower movable plate, and the natural length of the reset spring is matched with the initial spacing of the upper movable plate and the lower movable plate.

10. A soil remediation method based on land improvement planning, implemented by the soil remediation device based on land improvement planning according to claims 1-9, characterized in that, The method comprises the following steps: S1. moving the device to the area to be repaired by moving the vehicle, and adjusting the position of the shell by adjusting the arm; S2. starting the hydraulic telescopic rod to push the upper movable plate and the lower movable plate to move downward, so that the insertion rod is inserted into the soil; S3. when the lower movable plate contacts the ground, the upper movable plate continues to move downward, and the meshing of the toothed rack and the spur gear drives the toothed plate, the sliding rod and the sliding block to move downward, so that the rotating plate expands to form a cavity; S4. starting the air pump to pressurize the repair agent storage tank, so that the repair agent is injected into the soil cavity through the conveying system and the conveying flow channels; S5. the hydraulic telescopic rod drives the upper movable plate and the lower movable plate to rise, and the limiting mechanism keeps the rotating plate in the expanded state to loosen the soil; S6. when the upper movable plate rises to contact the inner wall of the top of the shell, the unlocking block extrudes the limiting block inclined surface to make it retract into the limiting groove, the reset spring pushes the upper movable plate and the lower movable plate to increase the spacing, and the rotating plate is retracted.

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