A saline-alkali soil improvement device and method based on microbial treatment

Abstract

The application discloses a saline-alkali soil improvement equipment and method based on microbial treatment, and relates to the technical field of saline-alkali soil improvement.The equipment comprises a support base plate, and a mounting frame fixedly arranged on one side of the support base plate; a soil turning roller for turning over the surface layer of saline-alkali soil is arranged in the mounting frame; a medicine storage box for storing medicine is arranged on the support base plate; a stirring rod for stirring and mixing the medicine is arranged in the medicine storage box; and a soil stirring assembly for mixing the medicine and soil is arranged at the bottom of the support base plate.The equipment can flexibly adjust the soil turning depth of the soil turning roller according to the actual situation of the saline-alkali soil by arranging an electric telescopic rod, a mounting plate and a connecting plate, so that the saline-alkali soil at different depths can be effectively improved; meanwhile, the through groove provides a guide for the transmission block, ensures the stability of the transmission structure during the adjustment of the soil turning depth, and improves the applicability of the equipment.

Description

Technical Field

[0001] This invention relates to the field of saline-alkali land improvement technology, specifically to a saline-alkali land improvement device and method based on microbial treatment. Background Technology

[0002] Saline-alkali land, as an important land resource, plays a vital role in ensuring food security and improving the ecological environment. Currently, saline-alkali land improvement mainly employs physical, chemical, and biological methods, among which microbial improvement is gradually becoming the mainstream technology due to its advantages such as environmental friendliness and strong sustainability.

[0003] Most existing saline-alkali land improvement equipment achieves improvement by combining mechanical tilling with chemical spraying. However, this method has several drawbacks in practical applications: First, the tilling structure is fixed, making it impossible to adjust the tilling depth according to the actual conditions such as the thickness of the surface compaction and the depth of salinization. This results in incomplete improvement of shallow compacted soil and difficulty in reaching deep saline-alkali soil, affecting the overall improvement effect. Second, the chemicals are prone to sedimentation and stratification during storage, and the existing mixing structure can only achieve mixing in one direction, which cannot ensure uniform chemical concentration, leading to significant differences in the local soil improvement effect after application. Third, the core processes such as tilling, spraying, and mixing use independent drive structures, which not only increases equipment energy consumption and manufacturing costs but also causes problems with discontinuous process connections. The soil is prone to secondary compaction after tilling, and the chemicals cannot be mixed with the soil in time after spraying, resulting in low chemical utilization and low improvement efficiency.

[0004] Therefore, the present invention provides a saline-alkali land improvement device and method based on microbial treatment to solve the above-mentioned problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a saline-alkali land improvement device and method based on microbial treatment, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a saline-alkali land improvement device based on microbial treatment, comprising a supporting base plate and an installation frame fixedly disposed on one side of the supporting base plate, wherein a soil turning roller for turning over the surface soil of the saline-alkali land is disposed in the installation frame, a storage tank for storing the agent is disposed on the supporting base plate, a stirring rod for stirring and mixing the agent is disposed inside the storage tank, and a soil mixing component for mixing the agent and soil is disposed at the bottom of the supporting base plate;

[0007] During the rotation of the stirring rod, it synchronously drives the soil turning roller and the soil mixing assembly to rotate.

[0008] A spray head is provided at the bottom of the support base plate. The spray head is located between the soil turning roller and the soil mixing assembly. The spray head is connected to the interior of the storage tank.

[0009] Preferably, an installation plate is slidably disposed inside the installation frame, and connecting plates are fixedly disposed on both sides of the bottom of the installation plate. The soil turning roller is rotatably disposed between the two connecting plates. Electric telescopic rods are symmetrically fixedly disposed on the inner top wall of the installation frame, and the output end of the electric telescopic rods is fixedly connected to the installation plate.

[0010] Preferably, a drive motor is fixedly installed on the top of the medicine storage box, and a drive shaft is fixedly installed on the output shaft of the drive motor through a coupling. A drive rod is slidably sleeved on the outer surface of the drive shaft, and the stirring rod is fixedly installed on the outer surface of the drive rod.

[0011] Preferably, a plurality of limiting strips are fixedly provided on the outer surface of the drive shaft, and the limiting strips pass through the drive rod and slide along its inner surface.

[0012] Preferably, a connecting sleeve is fixedly provided on the inner top of the medicine storage box, a lifting screw is fixedly provided on the top end of the drive rod, the drive shaft and the limiting strip both pass through the lifting screw and slide on its inner surface, and the lifting screw extends into the interior of the connecting sleeve and is threadedly connected to the inner surface.

[0013] Preferably, a mounting block is fixedly provided on the outer surface of the mounting frame, and a drive shaft is rotatably provided through the mounting block. The outer surface of the drive shaft and the drive shaft are connected by a belt drive. A drive block is fixedly provided on the outer side of one of the connecting plates, and a drive gear is rotatably provided on the bottom of the drive block. The drive shaft passes through the drive block and the drive gear in sequence and slides with the inner surface of the drive gear. A connecting shaft is fixedly provided on one side of the turning roller, and the end of the connecting shaft passes through one of the connecting plates and is fixedly provided with a driven gear, wherein the driven gear is meshed with the drive gear.

[0014] Preferably, the side wall of the mounting frame is provided with a through groove, and the transmission block passes through the through groove and is slidably disposed with its inner surface.

[0015] Preferably, the soil mixing assembly includes multiple connecting gears rotatably disposed at the bottom of the support base plate, with adjacent connecting gears meshing together. Multiple uniformly distributed soil mixing plates are fixedly disposed at the bottom of the connecting gears. A support rod is rotatably disposed at the bottom of the support base plate, with the top end of the support rod extending into the medicine storage tank and fixedly disposed at the bottom end of the drive shaft. A transmission gear is fixedly disposed at the bottom end of the support rod, wherein the transmission gear meshes with one of the connecting gears.

[0016] An improvement method for a saline-alkali land improvement device based on microbial treatment includes the following steps:

[0017] Step 1: Based on the surface thickness and salinization degree of the saline-alkali land to be improved, start the electric telescopic rod. The electric telescopic rod will drive the mounting plate, connecting plate and turning roller to move up and down. Adjust the soil penetration depth of the turning roller. After the adjustment is completed, turn off the electric telescopic rod.

[0018] Step 2: Connect the equipment to the external traction equipment, start the drive motor, the drive motor drives the drive shaft to rotate, and the medicine in the storage tank is simultaneously transported to the spray head;

[0019] Step 3: The drive shaft drives the drive rod and stirring rod to rotate via the limit bar. At the same time, the drive rod drives the lifting screw to move up and down along the connecting sleeve to achieve full mixing of the agent. The drive shaft drives the transmission shaft to rotate via the belt. The transmission shaft drives the turning roller to rotate through the meshing of the drive gear and the driven gear, turning the soil in the saline-alkali land. The turned soil moves to the bottom of the spray head, and the spray head sprays the agent evenly on the soil. The drive shaft drives the support rod and the transmission gear to rotate. The transmission gear drives the stirring plate to rotate through the meshing of the connecting gear, fully mixing the agent with the soil.

[0020] Beneficial effects

[0021] This invention provides a device and method for improving saline-alkali land based on microbial treatment. Compared with the prior art, it has the following advantages:

[0022] (1) The equipment and method for improving saline-alkali land based on microbial treatment can flexibly adjust the soil turning depth of the turning roller according to the actual situation of the saline-alkali land by setting an electric telescopic rod, mounting plate and connecting plate, so as to ensure that saline-alkali soil at different depths can be effectively improved. At the same time, the through groove provides guidance for the transmission block, ensuring the stability of the transmission structure when adjusting the soil turning depth, and improving the applicability of the equipment.

[0023] (2) The saline-alkali land improvement equipment and method based on microbial treatment drives the stirring rod, turning roller and soil mixing component to work synchronously by driving motor, which simplifies the drive structure and reduces equipment energy consumption; the stirring rod can move up and down while rotating, ensuring that the microbial improvement agent in the storage tank is stirred evenly and avoiding sedimentation and stratification; the spray head is set between the turning roller and soil mixing component, and spraying and stirring are carried out in time after turning the soil, realizing the continuous operation of turning, spraying and mixing, which greatly improves the mixing uniformity of the agent and soil and the improvement efficiency. Attached Figure Description

[0024] Figure 1 A first-view schematic diagram of the external structure provided for this invention;

[0025] Figure 2This is a second-view schematic diagram of the external structure provided by the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of the mounting frame provided by the present invention;

[0027] Figure 4 This is a schematic diagram of the installation of the soil-turning roller provided by the present invention;

[0028] Figure 5 This is a schematic diagram of the internal structure of the medicine storage box provided by the present invention;

[0029] Figure 6 This is a schematic diagram of the installation of the stirring rod provided by the present invention;

[0030] Figure 7 This is a partial structural schematic diagram provided by the present invention;

[0031] Figure 8 This is a schematic diagram of the soil mixing component provided by the present invention.

[0032] In the diagram: 1-Support base plate, 2-Mounting frame, 201-Through groove, 3-Medicine storage tank, 4-Stirring rod, 5-Soil mixing assembly, 501-Connecting gear, 502-Soil mixing plate, 503-Support rod, 504-Transmission gear, 6-Turning roller, 7-Spraying head, 8-Mounting plate, 9-Connecting plate, 10-Electric telescopic rod, 11-Drive motor, 12-Drive shaft, 13-Drive rod, 1201-Limiting strip, 14-Connecting sleeve, 15-Lifting screw, 16-Mounting block, 17-Transmission shaft, 18-Belt, 19-Transmission block, 20-Drive gear, 21-Connecting shaft, 22-Driven gear. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1

[0035] Please see Figures 1-8This invention provides a technical solution: a saline-alkali land improvement device based on microbial treatment, comprising a support base plate 1 and a mounting frame 2 fixedly disposed on one side of the support base plate 1. Four movable wheels are fixedly installed at the bottom corners of the support base plate 1. The movable wheels are made of non-slip and wear-resistant material and have a braking function. A traction ring is welded to one side of the support base plate 1 for easy connection with tractors or other traction equipment, enabling the device to move. A soil-turning roller 6 is installed inside the mounting frame 2 to turn over the surface soil of the saline-alkali land. The outer surface of the soil-turning roller 6 is welded with spiral-shaped turning blades made of high-strength alloy material, possessing good wear resistance and soil-breaking ability. During rotation, it can efficiently break up the surface crust of the saline-alkali land, turning the deep saline-alkali soil to the surface, creating favorable conditions for pesticide spraying and mixing. A storage tank 3 for storing chemicals is mounted on the support base plate 1. The storage tank 3 is fixedly installed at the top center of the support base plate 1 and is used to store microbial improvement agents. Its material must have corrosion resistance to prevent the agents from corroding the tank body and extend the service life of the equipment. A feeding port is provided on the top of the storage tank 3, and a sealing cap is provided at the feeding port to effectively prevent the volatilization of the agents and prevent external impurities from entering the tank and contaminating the agents. Inside the storage tank 3, a stirring rod 4 is provided to stir and mix the agents. At the bottom of the support base plate 1, a soil mixing assembly 5 is provided to mix the agents and soil. During the rotation of the stirring rod 4, the soil turning roller 6 and the soil mixing assembly 5 are driven to rotate synchronously.

[0036] A spray head 7 is installed at the bottom of the support base plate 1. The bottom of the storage tank 3 is connected to the spray head 7 via a pipe. A booster pump is connected in series with the pipe and is fixedly installed at the bottom of the support base plate 1. The spray head 7 is an atomizing nozzle and is evenly distributed along the width of the support base plate 1 to ensure uniform spraying of the pesticide. The spray head 7 is located between the soil turning roller 6 and the soil mixing assembly 5, and is internally connected to the storage tank 3.

[0037] An installation plate 8 is slidably mounted inside the mounting frame 2. Connecting plates 9 are fixedly mounted on both sides of the bottom of the mounting plate 8. The turning roller 6 is rotatably positioned between the two connecting plates 9. Electric telescopic rods 10 are symmetrically fixedly mounted on the inner top wall of the mounting frame 2, and the output end of the electric telescopic rods 10 is fixedly connected to the mounting plate 8. The sliding fit between the mounting plate 8 and the inner wall of the mounting frame 2, combined with the guiding action of the sliders and slide rails on both sides, ensures smooth up-and-down movement of the mounting plate 8. The electric telescopic rods 10 serve as an adjustment component for the turning depth. By driving the mounting plate 8 to rise and fall, they cause the connecting plates 9 and the turning roller 6 to move synchronously, thereby achieving flexible adjustment of the depth of the turning roller 6 in the soil, adapting to the improvement needs of different surface layer thicknesses and salinization levels in saline-alkali land.

[0038] A drive motor 11 is fixedly mounted on the top of the medicine storage tank 3. The drive motor 11 is bolted to the top of the medicine storage tank 3 and is a servo motor with adjustable speed. A drive shaft 12 is fixedly mounted on the output shaft of the drive motor 11 via a coupling. A drive rod 13 is slidably fitted onto the outer surface of the drive shaft 12. A stirring rod 4 is fixedly mounted on the outer surface of the drive rod 13. The radially distributed stirring blades increase the contact area with the medicine, improving the stirring effect. Multiple limiting strips 1201 are fixedly mounted on the outer surface of the drive shaft 12. The limiting strips 1201 pass through the drive rod 13 and slide along its inner surface. A groove adapted to the limiting strip 1201 is formed on the inner surface of the drive rod 13, ensuring that the limiting strip 1201 can slide along the groove while transmitting torque.

[0039] A connecting sleeve 14 is fixedly installed at the top of the inner part of the medicine storage tank 3, and a lifting screw 15 is fixedly installed at the top of the drive rod 13. The drive shaft 12 and the limiting strip 1201 both pass through the lifting screw 15 and slide on its inner surface. The lifting screw 15 extends into the interior of the connecting sleeve 14 and is threadedly connected to its inner surface. The inner surface of the connecting sleeve 14 has an internal thread, and the outer surface of the lifting screw 15 has an external thread. The internal thread and the external thread are compatible. When the drive rod 13 rotates, the lifting screw 15 drives the drive rod 13 and the stirring rod 4 to move up and down reciprocally under the action of the thread, so as to realize the all-round stirring of the medicine in different layers in the medicine storage tank 3, completely breaking the problem of medicine sedimentation and stratification, ensuring that the concentration of medicine in the tank is uniform and consistent, and ensuring stable improvement effect.

[0040] A mounting block 16 is fixedly installed on the outer surface of the mounting frame 2. A drive shaft 17 is rotatably mounted through the mounting block 16. The drive shaft 17 is connected to the outer surface of the drive shaft 12 via a belt 18. The drive shaft 17 is rotatably connected to the mounting block 16 via a bearing. Both the outer surfaces of the drive shaft 17 and the drive shaft 12 are fixedly fitted with pulleys. The belt 18 is fitted between the two pulleys to realize power transmission. A keyway is opened on the outer surface of the drive shaft 17. A key that matches the keyway is provided on the inner surface of the drive gear 20. The long keyway on the outer surface of the drive shaft 17 and the flat key on the inner surface of the drive gear 20 are matched to ensure that the drive gear 20 can rotate synchronously with the drive shaft 17 and slide up and down along the drive shaft 17 to adapt to the position changes when the depth of the turning roller 6 is adjusted. A transmission block 19 is fixedly mounted on the outer side of one of the connecting plates 9, providing a mounting base for the drive gear 20. A through groove 201 is formed through the side wall of the mounting frame 2, through which the transmission block 19 passes and slides along its inner surface. When the turning roller 6 rises and falls, the transmission block 19 slides along the through groove 201, providing stable guidance for the transmission structure and ensuring that the drive gear 20 and driven gear 22 always maintain good meshing, guaranteeing stable power transmission to the turning roller 6. The drive gear 20 is rotatably mounted at the bottom of the transmission block 19. A transmission shaft 17 passes through the transmission block 19 and the drive gear 20 in sequence, and slides along the inner surface of the drive gear 20. A connecting shaft 21 is fixedly mounted on one side of the turning roller 6. The connecting shaft 21 and the turning roller 6 are integrally formed. The connecting shaft 21 is rotatably connected to the connecting plate 9 via a bearing, ensuring smooth rotation of the turning roller 6. The end of the connecting shaft 21 passes through one of the connecting plates 9 and is fixedly mounted with a driven gear 22, which meshes with the drive gear 20.

[0041] The soil mixing assembly 5 includes multiple connecting gears 501 rotatably mounted on the bottom of the support base plate 1, with adjacent connecting gears 501 meshing together. The connecting gears 501 are rotatably connected to the bottom of the support base plate 1 via bearings. The number of connecting gears 501 is 3-5, appropriately arranged according to the width of the equipment. Soil mixing plates 502 are welded to the bottom of the connecting gears 501. The soil mixing plates 502 have an L-shaped structure and are inclined outwards to improve the soil mixing effect. Multiple evenly distributed soil mixing plates 502 are fixedly mounted on the bottom of the connecting gears 501. A support rod 503 is rotatably mounted on the bottom of the support base plate 1. The support rod 503 connects the drive shaft 12 and the transmission gear 504, transmitting the power of the drive motor 11 to the connecting gears 501, enabling the soil mixing assembly 5 to operate synchronously with processes such as turning and mixing, thus improving the overall improvement efficiency. The top end of the support rod 503 extends into the medicine storage box 3 and is fixedly installed at the bottom end of the drive shaft 12. A transmission gear 504 is fixedly installed at the bottom end of the support rod 503, wherein the transmission gear 504 is meshed with one of the connecting gears 501.

[0042] The connecting gear 501 in the soil mixing assembly 5 enables the synchronous rotation of multiple soil mixing plates 502 through meshing transmission. The distribution design of the soil mixing plates 502 can expand the contact range with the soil, fully mix the agent sprayed on the soil surface with the loosened soil, ensure that the agent penetrates evenly into the soil, and improve the effect of saline-alkali land improvement.

[0043] Example 2

[0044] Based on Example 1, this invention provides another technical solution: an improvement method for a saline-alkali land improvement device based on microbial treatment, comprising the following steps:

[0045] After the drive motor 11 is started, its output shaft drives the drive shaft 12 to rotate at high speed through the flexible coupling. The drive shaft 12 serves as the power hub and achieves power distribution through three paths: first, the limit strip 1201 on the outer surface drives the drive rod 13 to rotate, providing power for the mixing of the agent; second, the pulley at the top is linked with the belt 18 to drive the transmission shaft 17, providing power for the turning roller 6; and third, the support rod 503 fixedly connected at the bottom drives the transmission gear 504 to rotate, providing power for the soil mixing assembly 5. This achieves single power source driving multiple processes to operate synchronously, greatly reducing energy consumption.

[0046] Chemical stirring and anti-sedimentation: When the drive rod 13 rotates under the drive shaft 12, the lifting screw 15 at its top end forms a threaded engagement with the connecting sleeve 14 at the top of the storage tank 3. Since the connecting sleeve 14 is fixed, the rotating lifting screw 15 moves up and down along the internal thread of the connecting sleeve 14, thereby driving the drive rod 13 and the stirring rod 4 on the outer surface to perform a compound motion of "rotation + up and down movement". The radial blades of the stirring rod 4 expand the contact range with the chemical when rotating, and can agitate the chemical at different heights in the storage tank 3 when moving up and down, completely eliminating the possibility of chemical sedimentation and stratification, ensuring a uniform concentration of the microbial amendment chemical, and providing a guarantee for the subsequent application effect. At the same time, the booster pump starts synchronously, transporting the uniformly stirred chemical through the pipeline to the spray head 7, ready for spraying.

[0047] Soil turning depth adjustment and soil loosening: Before operation, based on the actual conditions such as the thickness of the surface compaction and the depth of salinization of the saline-alkali land to be improved, the electric telescopic rod 10 is activated. Its output end pushes the mounting plate 8 to slide up and down along the slide rail of the mounting frame 2. The mounting plate 8 drives the turning roller 6 to rise and fall synchronously through the connecting plate 9 until the preset soil penetration depth is reached. At this time, the transmission block 19 will slide synchronously along the through groove 201 on the side wall of the mounting frame 2. The long keyway on the outer surface of the transmission shaft 17 and the flat key of the drive gear 20 are engaged to ensure that the drive gear 20 remains engaged with the driven gear 22 after rising and falling with the connecting plate 9. After the power is transmitted to the transmission shaft 17 through the belt 18, the transmission shaft 17 drives the drive gear 20 to rotate. The drive gear 20 meshes with the driven gear 22, thereby driving the connecting shaft 21 and the turning roller 6 to rotate. When the spiral blades on the outer surface of the soil turning roller 6 rotate at high speed, they break up the hardened layer on the surface of the saline-alkali land and turn the deep saline-alkali soil to the surface, making the soil particles loose and creating favorable conditions for subsequent pesticide penetration.

[0048] Atomized spraying of pesticide: The soil loosened by the turning roller 6 moves with the equipment and enters the working range of the spray head 7. At this time, the microbial amendment agent, pressurized by the booster pump, is sprayed from the spray head 7. The atomization design of the spray head 7 transforms the agent into fine droplets, which evenly cover the loose soil surface. Because the spray head 7 is located between the turning roller 6 and the soil mixing component 5, the loosened soil can immediately come into contact with the agent, avoiding soil compaction that would affect agent absorption. At the same time, atomized spraying ensures that the agent covers all areas without dead zones, avoiding missed spraying or localized over-application of the agent.

[0049] High-efficiency soil-pesticide mixing: After spraying, the soil continues to move with the equipment, entering the working area of ​​the soil mixing component 5. The drive shaft 12 drives the transmission gear 504 to rotate via the support rod 503. The transmission gear 504 meshes with one of the connecting gears 501. Due to the meshing of adjacent connecting gears 501, power is quickly transmitted to all connecting gears 501, causing the bottom soil mixing plate 502 to rotate synchronously. As the soil mixing plate 502 rotates, it penetrates deep into the soil, and through stirring and turning actions, it fully mixes the surface pesticide with the deep soil, allowing the pesticide to penetrate evenly into the gaps between soil particles and fully contact the saline-alkali soil. The microbial pesticide then exerts its improving effect, reducing soil salinity and alkalinity.

[0050] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A saline-alkali land improvement device based on microbial treatment, comprising a support base plate (1) and a mounting frame (2) fixedly disposed on one side of the support base plate (1), characterized in that: The mounting frame (2) is equipped with a soil turning roller (6) for turning up the soil on the surface of saline-alkali land. The support base plate (1) is equipped with a medicine storage box (3) for storing medicine. The medicine storage box (3) is equipped with a stirring rod (4) for stirring and mixing medicine. The bottom of the support base plate (1) is equipped with a soil mixing component (5) for mixing medicine and soil. During the rotation of the stirring rod (4), it synchronously drives the soil turning roller (6) and the soil mixing assembly (5) to rotate. The bottom of the support base plate (1) is provided with a spray head (7), which is located between the soil turning roller (6) and the soil mixing assembly (5). The spray head (7) is connected to the interior of the medicine storage tank (3).

2. The saline-alkali land improvement equipment based on microbial treatment according to claim 1, characterized in that: An installation plate (8) is slidably arranged inside the installation frame (2). A connecting plate (9) is fixedly arranged on both sides of the bottom of the installation plate (8). The soil turning roller (6) is rotatably arranged between the two connecting plates (9). An electric telescopic rod (10) is symmetrically fixedly arranged on the inner top wall of the installation frame (2). The output end of the electric telescopic rod (10) is fixedly connected to the installation plate (8).

3. The saline-alkali land improvement equipment based on microbial treatment according to claim 1, characterized in that: The top of the medicine storage box (3) is fixedly equipped with a drive motor (11), and the output shaft of the drive motor (11) is fixedly equipped with a drive shaft (12) through a coupling. The outer surface of the drive shaft (12) is slidably sleeved with a drive rod (13), and the stirring rod (4) is fixedly installed on the outer surface of the drive rod (13).

4. The saline-alkali land improvement equipment based on microbial treatment according to claim 3, characterized in that: The outer surface of the drive shaft (12) is fixedly provided with a plurality of limiting strips (1201), which pass through the drive rod (13) and slide along its inner surface.

5. The saline-alkali land improvement equipment based on microbial treatment according to claim 4, characterized in that: The medicine storage box (3) is fixedly provided with a connecting sleeve (14) at the top, and the top of the drive rod (13) is fixedly provided with a lifting screw (15). The drive shaft (12) and the limiting strip (1201) both pass through the lifting screw (15) and slide on its inner surface. The lifting screw (15) extends into the interior of the connecting sleeve (14) and is threadedly connected to the inner surface.

6. The saline-alkali land improvement equipment based on microbial treatment according to claim 1, characterized in that: An installation block (16) is fixedly provided on the outer surface of the mounting frame (2). A drive shaft (17) is rotatably provided through the installation block (16). The drive shaft (17) is connected to the outer surface of the drive shaft (12) by a belt (18). A drive block (19) is fixedly provided on the outer side of one of the connecting plates (9). A drive gear (20) is rotatably provided at the bottom of the drive block (19). The drive shaft (17) passes through the drive block (19) and the drive gear (20) in sequence and slides with the inner surface of the drive gear (20). A connecting shaft (21) is fixedly provided on one side of the turning roller (6). The end of the connecting shaft (21) passes through one of the connecting plates (9) and is fixedly provided with a driven gear (22). The driven gear (22) meshes with the drive gear (20).

7. The saline-alkali land improvement equipment based on microbial treatment according to claim 6, characterized in that: The side wall of the mounting frame (2) is provided with a through groove (201), and the transmission block (19) passes through the through groove (201) and slides with its inner surface.

8. The saline-alkali land improvement equipment based on microbial treatment according to claim 1, characterized in that: The soil mixing assembly (5) includes a plurality of connecting gears (501) rotatably disposed at the bottom of the support base plate (1), and two adjacent connecting gears (501) are meshed together. A plurality of uniformly distributed soil mixing plates (502) are fixedly disposed at the bottom of the connecting gears (501). A support rod (503) is rotatably disposed at the bottom of the support base plate (1). The top end of the support rod (503) extends into the medicine storage tank (3) and is fixedly disposed at the bottom end of the drive shaft (12). A transmission gear (504) is fixedly disposed at the bottom end of the support rod (503), wherein the transmission gear (504) meshes with one of the connecting gears (501).

9. The improvement method of a saline-alkali land improvement device based on microbial treatment according to any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Based on the surface thickness and salinization degree of the saline-alkali land to be improved, start the electric telescopic rod (10). The electric telescopic rod (10) drives the mounting plate (8), connecting plate (9) and turning roller (6) to move up and down. Adjust the soil penetration depth of the turning roller (6). After the adjustment is completed, turn off the electric telescopic rod (10). Step 2: Connect the equipment to the external traction equipment and start the drive motor (11). The drive motor (11) drives the drive shaft (12) to rotate, and the medicine in the storage tank (3) is simultaneously transported to the spray head (7). Step 3: The drive shaft (12) drives the drive rod (13) and the stirring rod (4) to rotate through the limit bar (1201). At the same time, the drive rod (13) drives the lifting screw (15) to move up and down along the connecting sleeve (14) to achieve full mixing of the agent. The drive shaft (12) drives the transmission shaft (17) to rotate through the belt (18). The transmission shaft (17) drives the turning roller (6) to rotate through the meshing of the drive gear (20) and the driven gear (22) to turn the soil in the saline-alkali land. The soil after turning moves to the bottom of the spray head (7). The spray head (7) sprays the agent evenly on the soil. The drive shaft (12) drives the support rod (503) and the transmission gear (504) to rotate. The transmission gear (504) drives the stirring plate (502) to rotate through the meshing of the connecting gear (501) to fully mix the agent with the soil.

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