A material application device for saline-alkali soil improvement

Abstract

The application provides a material dispensing device for saline-alkali soil improvement. The material dispensing device for saline-alkali soil improvement comprises a mounting plate, a material storage mechanism, a material discharge mechanism and a soil breaking mechanism are arranged on the top of the mounting plate, the material storage mechanism is connected with the material discharge mechanism, the material storage mechanism is used for supplementing the material in the material discharge mechanism before the material discharge mechanism discharges all the material, the material discharge mechanism is connected with the soil breaking mechanism, and the soil breaking mechanism is used for cooperating with the material discharge mechanism to lay the material to the ground. The material dispensing device for saline-alkali soil improvement has the advantages of continuous material supplement, uniform distribution and accurate layer laying.

Description

Technical Field

[0001] This invention relates to the field of soil improvement equipment technology, and in particular to a material application device for improving saline-alkali land. Background Technology

[0002] Improving saline-alkali land is of great significance for expanding agricultural area and increasing yield. The core of physical improvement technology is to regulate water and salt movement by setting up barriers and reshaping soil structure, combined with agronomic measures, thereby reducing evaporation and lowering the salt content of the topsoil. Among these, constructing a layer of straw or organic materials (also known as a salt-reducing layer or salt-blocking layer) at a certain depth underground is one of the effective technical approaches. By laying straw or other organic materials in the 30-40cm soil layer to form a barrier, the capillary water and salt movement in the soil can be altered, cutting off the upward flow channels of deep groundwater and salt, and creating a "high water, low salt" microenvironment in the crop root zone. Depending on actual needs, organic fertilization can also be carried out in the 10-30cm soil layer, or compound improvement materials such as biochar and Trichoderma-rotted straw can be applied to the underground layer to improve soil microbial communities, adsorb salt and water, and thus improve the crop root microenvironment.

[0003] The implementation of the above-mentioned improvement process is inseparable from specialized application machinery. In the actual implementation of saline-alkali land improvement operations, a large amount of solid materials (such as straw segments, biochar, inoculant compost and their mixtures) need to be continuously and evenly applied to a predetermined depth below the surface, and this predetermined depth needs to match the design location of the interlayer.

[0004] However, existing material delivery equipment still suffers from numerous technical challenges in practical applications. On the one hand, the limited capacity of hoppers or storage boxes necessitates frequent shutdowns for replenishment during long-distance, large-area operations, resulting in low operational efficiency. On the other hand, when materials are transported from the storage mechanism to the underground strata, the lack of a reasonable temporary storage and diversion design easily leads to uneven discharge and localized material interruptions, making it difficult for the formed salt-repellent layer to meet consistent design requirements in both longitudinal depth and lateral continuity. Furthermore, trenching and material laying are often completed by two independent mechanisms, which lack precise coordination during their operation. This results in materials not being accurately laid flat at the bottom of the newly opened trench by the trenching mechanism, and some materials being easily buried by backfill soil or deviating from the target stratum, thus affecting the salt-repellent effect and improvement efficiency of the stratum.

[0005] Therefore, it is necessary to provide a new material application device for saline-alkali land improvement to solve the above-mentioned technical problems. Summary of the Invention

[0006] The technical problem solved by this invention is to provide a material application device for improving saline-alkali land that can achieve continuous feeding, uniform distribution, and precise layering.

[0007] To solve the above-mentioned technical problems, the present invention provides a material dispensing device for saline-alkali land improvement, comprising: an installation plate, the top of which is provided with a material storage mechanism, a material discharge mechanism and a soil breaking mechanism, the material storage mechanism being connected to the material discharge mechanism, the material storage mechanism being used to replenish the material in the material discharge mechanism before the material discharge mechanism discharges all the material, the material discharge mechanism being connected to the soil breaking mechanism, the soil breaking mechanism being used to cooperate with the material discharge mechanism to spread the material flat to the underground fixed layer.

[0008] Preferably, a three-point connecting frame is fixedly installed on the top of the mounting plate. The three-point connecting frame is used to connect agricultural machinery, including tractors.

[0009] Preferably, the mounting plate includes a plate body, a rotating hole is provided on the plate body, an arc-shaped groove is provided on the top of the plate body, the arc-shaped groove is concentrically arranged with the rotating hole, and a plurality of mounting holes are provided on the top of the plate body.

[0010] Preferably, the material storage mechanism includes a rotating column rotatably installed in the rotating hole, a motor fixedly installed on the mounting plate on one side of the rotating column, a first gear fixedly installed on the output shaft of the motor, a second gear fixedly sleeved on the outer side of the rotating column, the first gear meshing with the second gear, an auger fixedly installed on the top of the rotating column, a feed pipe fixedly installed on the top of the auger, a conical storage box rotatably installed on the top of the feed pipe, the conical storage box being fixedly connected to the mounting plate, a discharge port opening at the bottom of the auger, a moving groove sleeved on the outer side of the discharge port, the moving groove being slidably connected to the auger, a discharge pipe fixedly installed at the bottom of the moving groove, a distributing pipe rotatably installed at the bottom of the discharge pipe, and two first discharge pipes fixedly installed at the bottom of the distributing pipe.

[0011] Preferably, a support column is fixedly installed at the bottom of the auger, and a support block is provided at the bottom of the support column. The support block is slidably installed in the arc-shaped groove.

[0012] Preferably, limit sliders are fixedly installed on both sides of the auger, and limit frames are fixedly installed on both sides of the moving groove, with the limit sliders slidably installed within the limit frames.

[0013] Preferably, the material discharge mechanism includes a material discharge temporary storage box, which comprises two elongated boxes with conical bottoms. Two first discharge pipes are located above the two elongated boxes. Multiple second discharge pipes are connected to the bottom of the material discharge temporary storage box. The second discharge pipes penetrate the mounting plate and extend below it. A material spreading pipe is fixedly installed at the bottom of the second discharge pipe. A limit strip is fixedly installed inside the material discharge temporary storage box. The two first discharge pipes are located on both sides of the limit strip and are slidably connected to the limit strip. The lowest point of the material spreading pipe is higher than the lowest point of the breaking mechanism.

[0014] Preferably, a valve is fixedly installed on the second discharge pipe.

[0015] Preferably, the soil-breaking mechanism includes multiple soil-breaking units arranged in two staggered rows. Each soil-breaking unit includes a plow plate, with a soil-dividing reinforcing rib on the top of the plow plate. A fixing block is fixedly installed on the top of the soil-dividing reinforcing rib, and the fixing block is fixedly connected to the bottom of the mounting plate. A bottom reinforcing block is fixedly installed on the bottom of the plow plate. Both the plow plate and the bottom reinforcing block are inclined. The material spreading pipe is fixedly connected to the bottom reinforcing block.

[0016] Preferably, the second discharge pipe is fixedly connected to the fixing block, the plow plate has a fixing hole, and the material spreading pipe passes through the fixing hole and is fixedly connected to the inner wall of the fixing hole.

[0017] Compared with related technologies, the material application device for saline-alkali land improvement provided by the present invention has the following beneficial effects: This invention provides a material dispensing device for saline-alkali land improvement. Through the connection between the material storage mechanism and the material discharge mechanism, replenishment can be made even when the material in the discharge mechanism is not completely discharged, avoiding operational interruptions caused by frequent stoppages for material replenishment and significantly improving operational efficiency. The coordination between the material discharge mechanism and the soil-breaking mechanism allows for precise and even spreading of material within trenches at a specific depth below the surface, created by the soil-breaking mechanism, forming a continuous and uniform salt-reducing layer and improving the improvement effect. The material storage mechanism employs a rotatable auger and a conical storage box, enabling flexible delivery of material from different locations to the material discharge mechanism, demonstrating strong adaptability. The material discharge temporary storage box, multiple secondary discharge pipes, and material spreading pipes in the material discharge mechanism improve the uniformity of the spreading. The plow plate and bottom reinforcing block of the soil-breaking mechanism are inclined, facilitating soil breaking and guiding the material smoothly into the trench, while also enhancing the structural strength. Attached Figure Description

[0018] Figure 1A schematic diagram of the material dispensing device for saline-alkali land improvement provided by the present invention from a first perspective; Figure 2 A schematic diagram of the material dispensing device for saline-alkali land improvement provided by the present invention from a second perspective; Figure 3 A schematic diagram of the material dispensing device for saline-alkali land improvement provided by the present invention from a third perspective; Figure 4 for Figure 2 The diagram shown is a structural schematic after removing the three-point connecting frame and the material storage mechanism. Figure 5 for Figure 4 A structural schematic diagram from another perspective is shown; Figure 6 for Figure 2 The diagram shows the connection structure between the soil-breaking mechanism and part of the material discharge mechanism. Figure 7 for Figure 6 A structural schematic diagram from another perspective is shown; Figure 8 for Figure 1 The diagram shows the structure of the material discharge mechanism located above the mounting plate. Figure 9 for Figure 1 The diagram shows the structure of the material storage mechanism. Figure 10 for Figure 9 A structural schematic diagram from another perspective is shown.

[0019] The diagram is labeled as follows: 1. Mounting plate; 11. Plate body; 12. Rotating hole; 13. Arc-shaped slide groove; 14. Mounting hole; 2. Material storage mechanism; 201. Rotating column; 202. Screwdriver; 203. Feed pipe; 204. Conical storage box; 205. Limiting slider; 206. Limiting frame; 207. Moving groove; 208. Discharge pipe; 209. Distribution pipe; 210. First discharge pipe; 211. Support column; 212. Support block; 213. Motor; 214. First gear; 215. Second gear; 3. Material discharge mechanism; 31. Material discharge temporary storage box; 32. Second discharge pipe; 33. Valve; 34. Material spreading pipe; 35. Limiting strip; 4. Soil breaking mechanism; 41. Plow plate; 42. Soil dividing reinforcement; 43. Fixing block; 44. Bottom reinforcement block; 45. Fixing hole; 5. Three-point connection frame. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figure 1-10 ,in, Figure 1A schematic diagram of the material dispensing device for saline-alkali land improvement provided by the present invention from a first perspective; Figure 2 A schematic diagram of the material dispensing device for saline-alkali land improvement provided by the present invention from a second perspective; Figure 3 A schematic diagram of the material dispensing device for saline-alkali land improvement provided by the present invention from a third perspective; Figure 4 for Figure 2 The diagram shown is a structural schematic after removing the three-point connecting frame and the material storage mechanism. Figure 5 for Figure 4 A structural schematic diagram from another perspective is shown; Figure 6 for Figure 2 The diagram shows the connection structure between the soil-breaking mechanism and part of the material discharge mechanism. Figure 7 for Figure 6 A structural schematic diagram from another perspective is shown; Figure 8 for Figure 1 The diagram shows the structure of the material discharge mechanism located above the mounting plate. Figure 9 for Figure 1 The diagram shows the structure of the material storage mechanism. Figure 10 for Figure 9 The diagram shows another structural perspective. The material dispensing device for saline-alkali land improvement includes: a mounting plate 1, with a material storage mechanism 2, a material discharge mechanism 3, and a soil breaking mechanism 4 on the top of the mounting plate 1. The material storage mechanism 2 is connected to the material discharge mechanism 3, and is used to replenish the material in the material discharge mechanism 3 before the material discharge mechanism 3 discharges all the material. The material discharge mechanism 3 is connected to the soil breaking mechanism 4, and is used to cooperate with the material discharge mechanism 3 to spread the material evenly to the underground fixed layer. In this embodiment, the soil breaking mechanism 4 is used to cooperate with the material discharge mechanism 3 to accurately spread the material evenly to the soil layer 30cm underground.

[0022] A three-point connecting frame 5 is fixedly installed on the top of the mounting plate 1. The three-point connecting frame 5 is used to connect agricultural machinery, including tractors.

[0023] The mounting plate 1 includes a plate body 11, a rotating hole 12 is provided on the plate body 11, an arc-shaped sliding groove 13 is provided on the top of the plate body 11, the arc-shaped sliding groove 13 is concentrically arranged with the rotating hole 12, and a plurality of mounting holes 14 are provided on the top of the plate body 1.

[0024] The material storage mechanism 2 includes a rotating column 201 rotatably installed in the rotating hole 12. A motor 213 is fixedly mounted on the mounting plate 1 on one side of the rotating column 201. A first gear 214 is fixedly mounted on the output shaft of the motor 213. A second gear 215 is fixedly sleeved on the outer side of the rotating column 201. The first gear 214 meshes with the second gear 215. An auger 202 is fixedly mounted on the top of the rotating column 201, and a feed pipe 20 is fixedly mounted on the top of the auger 202. 3. A conical storage box 204 is rotatably installed on the top of the feed pipe 203. The conical storage box 204 is fixedly connected to the mounting plate 1. A discharge port is opened at the bottom of the auger 202. A moving groove 207 is sleeved on the outside of the discharge port. The moving groove 207 is slidably connected to the auger 202. A discharge pipe 208 is fixedly installed at the bottom of the moving groove 207. A distribution pipe 209 is rotatably installed at the bottom of the discharge pipe 208. Two first discharge pipes 210 are fixedly installed at the bottom of the distribution pipe 209.

[0025] A support column 211 is fixedly installed at the bottom of the auger 202, and a support block 212 is provided at the bottom of the support column 211. The support block 212 is slidably installed in the arc-shaped groove 13.

[0026] Limiting sliders 205 are fixedly installed on both sides of the auger 202, and limiting frames 206 are fixedly installed on both sides of the moving groove 207. The limiting sliders 205 are slidably installed in the limiting frames 206.

[0027] The material discharge mechanism 3 includes a material discharge storage box 31, which comprises two elongated boxes with conical bottoms. Two first discharge pipes 210 are located above the two elongated boxes. Multiple second discharge pipes 32 are connected to the bottom of the material discharge storage box 31. The second discharge pipes 32 penetrate the mounting plate 1 and extend below it. A material spreading pipe 34 is fixedly installed at the bottom of the second discharge pipe 32. A limiting strip 35 is fixedly installed inside the material discharge storage box 31. The two first discharge pipes 210 are located on both sides of the limiting strip 35 and are slidably connected to the limiting strip 35. The lowest point of the material spreading pipe 34 is higher than the lowest point of the earth-breaking mechanism 4.

[0028] A valve 33 is fixedly installed on the second discharge pipe 32.

[0029] The soil breaking mechanism 4 includes multiple soil breaking units arranged in two staggered rows. Each soil breaking unit includes a plow plate 41. The top of the plow plate 41 is provided with a soil dividing reinforcing rib 42. A fixing block 43 is fixedly installed on the top of the soil dividing reinforcing rib 42. The fixing block 43 is fixedly connected to the bottom of the mounting plate 1. A bottom reinforcing block 44 is fixedly installed on the bottom of the plow plate 41. Both the plow plate 41 and the bottom reinforcing block 44 are inclined. The material spreading pipe 34 is fixedly connected to the bottom reinforcing block 44.

[0030] The second discharge pipe 32 is fixedly connected to the fixing block 43. The plow plate 41 is provided with a fixing hole 45. The material spreading pipe 34 passes through the fixing hole 45 and is fixedly connected to the inner wall of the fixing hole 45.

[0031] The working principle of the material application device for saline-alkali land improvement provided by this invention is as follows: In use, the entire device is attached to the rear suspension system of agricultural machinery (such as a tractor) via the three-point connecting frame 5 on the top of the mounting plate 1. The tractor is started and the hydraulic system lifts the device to the transport state. After arriving at the work site, the device is lowered so that the plow plate 41 of the soil breaking mechanism 4 is inserted into the soil to the predetermined depth (30cm). The valves 33 on each of the second discharge pipes 32 are opened so that the material discharge mechanism 3 is in standby state. The pre-prepared modified materials (such as biochar, straw shreds and Trichoderma compost mixed in proportion) are loaded into the conical storage box 204. The conical storage box 204 has a large capacity and can be loaded with enough materials to cover a long working distance at one time, providing material reserves for continuous operation. The motor 213 is started, and through the meshing transmission of the first gear 214 and the second gear 215, the rotating column 201 is driven to rotate. The rotating column 201 drives the auger 202 to rotate synchronously. At the same time, the support block 212 at the bottom of the support column 211 slides along the arc-shaped slide groove 13 to ensure the stable rotation of the auger 202. The material in the conical storage box 204 falls into the feed pipe 203 under the action of gravity, and then enters the spiral cavity of the auger 202. As the auger 202 rotates, the material is forced to be conveyed downwards from the auger 202. The material is discharged from the bottom outlet and enters the moving trough 207. The material flows into the distribution pipe 209 through the discharge pipe 208 below the moving trough 207. The distribution pipe 209 divides the material into two paths, which are discharged through two first discharge pipes 210 respectively. The discharge ports of the two first discharge pipes 210 are respectively aligned with the two elongated boxes of the material discharge temporary storage box 31. Due to the presence of the limit strip 35, the first discharge pipe 210 always slides on both sides of the limit strip 35 to ensure that the material falls accurately into the corresponding elongated box. During operation, the material in the material discharge temporary storage box 31 is continuously consumed (discharged through the second discharge pipe 32). When the amount of material in the material discharge temporary storage box 31 decreases, the auger 202 can be swung around the rotating column 201 by controlling the forward and reverse rotation of the motor 213. This allows the material falling from the first discharge pipe 210 to evenly replenish the material in the material discharge temporary storage box 31, thereby achieving dynamic replenishment and preventing the material discharge temporary storage box 31 from becoming completely empty. The material in the material discharge storage box 31 is guided by its conical bottom and flows naturally to the inlet of each second discharge pipe 32. The second discharge pipe 32 extends downward through the mounting plate 1 and its bottom end is fixedly connected to the material spreading pipe 34. The material spreading pipe 34 passes through the fixing hole 45 on the plow plate 41 and is fixedly connected to the fixing block 43. Therefore, its discharge port is located at the front end of the plow plate 41. As the tractor moves forward, the plow plate 41 of the soil-breaking mechanism 4 first cuts into the soil, pushing it to both sides to form a trench with a depth consistent with the depth of the plow plate 41. At the same time, the material in the material discharge storage box 31 continues to pass through the second discharge pipe 32 under the action of gravity, and finally flows out from the outlet of the material spreading pipe 34, falling evenly into the trench just opened by the plow plate 41. Since the lowest point of the material spreading pipe 34 is higher than the lowest point of the soil-breaking mechanism 4 (i.e., the tip of the plow plate 41), the material will not be buried in advance during the trench excavation process, but will fall accurately at the bottom of the trench. As the tractor continues to move forward, the soil on both sides of the trench will naturally fall back into the trench, covering the material. Furthermore, since multiple plow plates 41 are arranged in two staggered rows, a continuous and uniform salt-repellent layer is formed at a predetermined depth underground.

[0032] Compared with related technologies, the material application device for saline-alkali land improvement provided by the present invention has the following beneficial effects: This invention provides a material dispensing device for saline-alkali land improvement. Through the connection between the material storage mechanism 2 and the material discharge mechanism 3, replenishment can be made even when the material in the discharge mechanism 3 is not completely discharged, avoiding operational interruptions caused by frequent stoppages for material replenishment and significantly improving operational efficiency. The material discharge mechanism 3, in conjunction with the soil-breaking mechanism 4, can precisely spread the material in trenches opened by the soil-breaking mechanism 4 at a specific depth below the ground surface, forming a continuous and uniform salt-reducing layer and improving the improvement effect. The material storage mechanism 2 employs a rotatable auger 202 and a conical storage box 204, enabling flexible delivery of materials from different locations to the material discharge mechanism 3, demonstrating strong adaptability. The material discharge temporary storage box 31, multiple second discharge pipes 32, and material spreading pipes 34 in the material discharge mechanism 3 improve the uniformity of the spreading. The plow plate 41 and bottom reinforcing block 44 of the soil-breaking mechanism 4 are inclined, facilitating soil breaking and guiding the material smoothly into the trench, while also enhancing the structural strength.

[0033] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A material application device for improving saline-alkali land, characterized in that, include: The mounting plate has a material storage mechanism, a material discharge mechanism, and a ground-breaking mechanism on its top. The material storage mechanism is connected to the material discharge mechanism and is used to replenish the material in the material discharge mechanism before the material discharge mechanism has discharged all the material. The material discharge mechanism is connected to the ground-breaking mechanism and is used to cooperate with the material discharge mechanism to spread the material flat to the underground fixed layer.

2. The material dispensing device for saline-alkali land improvement according to claim 1, characterized in that, A three-point connecting frame is fixedly installed on the top of the mounting plate. The three-point connecting frame is used to connect agricultural machinery, including tractors.

3. The material dispensing device for saline-alkali land improvement according to claim 1, characterized in that, The mounting plate includes a plate body, on which a rotating hole is formed, and on the top of the plate body is an arc-shaped sliding groove, which is concentrically arranged with the rotating hole. The top of the plate body also has multiple mounting holes.

4. The material dispensing device for saline-alkali land improvement according to claim 3, characterized in that, The material storage mechanism includes a rotating column rotatably installed in the rotating hole. A motor is fixedly mounted on the mounting plate on one side of the rotating column. A first gear is fixedly mounted on the output shaft of the motor. A second gear is fixedly sleeved on the outer side of the rotating column. The first gear and the second gear mesh. An auger is fixedly mounted on the top of the rotating column. A feed pipe is fixedly mounted on the top of the auger. A conical storage box is rotatably mounted on the top of the feed pipe. The conical storage box is fixedly connected to the mounting plate. A discharge port is opened at the bottom of the auger. A moving groove is sleeved on the outer side of the discharge port. The moving groove is slidably connected to the auger. A discharge pipe is fixedly mounted at the bottom of the moving groove. A distribution pipe is rotatably mounted at the bottom of the discharge pipe. Two first discharge pipes are fixedly mounted at the bottom of the distribution pipe.

5. The material dispensing device for saline-alkali land improvement according to claim 4, characterized in that, A support column is fixedly installed at the bottom of the auger, and a support block is provided at the bottom of the support column. The support block is slidably installed in the arc-shaped groove.

6. The material dispensing device for saline-alkali land improvement according to claim 4, characterized in that, Limiting sliders are fixedly installed on both sides of the auger, and limiting frames are fixedly installed on both sides of the moving groove. The limiting sliders are slidably installed within the limiting frames.

7. The material dispensing device for saline-alkali land improvement according to claim 4, characterized in that, The material discharge mechanism includes a material discharge storage box, which comprises two elongated boxes with tapered bottoms. Two first discharge pipes are located above the two elongated boxes. Multiple second discharge pipes are connected to the bottom of the material discharge storage box. The second discharge pipes penetrate the mounting plate and extend below it. A material spreading pipe is fixedly installed at the bottom of the second discharge pipe. A limit strip is fixedly installed inside the material discharge storage box. The two first discharge pipes are located on both sides of the limit strip and are slidably connected to it. The lowest point of the material spreading pipe is higher than the lowest point of the excavation mechanism.

8. The material dispensing device for saline-alkali land improvement according to claim 1, characterized in that, A valve is fixedly installed on the second discharge pipe.

9. The material dispensing device for saline-alkali land improvement according to claim 7, characterized in that, The soil-breaking mechanism includes multiple soil-breaking units arranged in two staggered rows. Each soil-breaking unit includes a plow plate with a soil-dividing reinforcing rib on top. A fixing block is fixedly installed on the top of the soil-dividing reinforcing rib and is fixedly connected to the bottom of the mounting plate. A bottom reinforcing block is fixedly installed on the bottom of the plow plate. Both the plow plate and the bottom reinforcing block are inclined. The material spreading pipe is fixedly connected to the bottom reinforcing block.

10. The material dispensing device for saline-alkali land improvement according to claim 9, characterized in that, The second discharge pipe is fixedly connected to the fixed block, and a fixed hole is provided on the plow plate. The material spreading pipe passes through the fixed hole and is fixedly connected to the inner wall of the fixed hole.

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