A method and device for improving and treating saline-alkali land

Abstract

The invention relates to the field of land management, and specifically discloses a method and device for improving and managing saline-alkali land. The invention respectively arranges a deep tillage part and a medicine broadcasting part on a frame, adjusts a tillage component to a suitable position by telescoping a hydraulic rod, and during the driving process of a traction vehicle driving the frame through a trailer, the tillage component is plugged into the inside of the land to turn over the soil, a motor drives a rotating pipe and a plug-in feeding component to rotate, and an improver placed in a material box passes through a material trough and a retaining ring in turn, and finally flows out from the end of the plug-in feeding component, and the rotating plug-in feeding component is plugged into the soil to guide the outflowing improver into the deep soil for action, so that the improver is in full contact with the salt in the deep soil, thereby improving the improvement effect.

Description

Technical Field

[0001] The invention belongs to the technical field of land management, and in particular relates to a method and a device for improving and managing saline-alkali land. Background Art

[0002] Saline-alkali land is a type of soil with high salinity, high alkalinity and easy compaction. This type of soil is not only difficult to retain fertilizer and is poor in nutrients, but also often has limited crop varieties, a single irrigation method, and less-than-ideal yields. In order to improve land utilization, it is necessary to improve and manage saline-alkali land.

[0003] In a Chinese patent with publication number CN117581666A, a saline-alkali land improvement device is mentioned, including a hopper and a frame, the hopper is fixedly mounted on the frame, and axle one and axle two are rotatably mounted at the front and rear ends of the frame, and wheels are fixedly mounted at both ends of axle one and axle two, and a turntable is rotatably mounted at the rear end of the frame, and the turntable is driven by a motor, and the feeding device includes a through pipe fixedly mounted on the frame and located below the hopper, and a screw is rotatably mounted on the frame and located in the through pipe, a feed port is provided above the through pipe, and an opening is provided below the hopper, the feed port is connected to the opening, the through pipe is located on one side of the turntable as a discharge port, and one end of the screw is connected to the driving device. The invention drives the feeding device through a speed change device, thereby changing the feeding speed according to the driving speed of the fertilizer spreader, thereby controlling the amount of desulfurized gypsum added.

[0004] During the application process, the applicant discovered that the above application had defects during use. The device disclosed in the application would sprinkle desulfurization gypsum on the surface of the saline-alkali land during the process of improving saline-alkali land. However, the salt contained in the saline-alkali land flows from underground, and the desulfurization gypsum only stays on the surface of the land and cannot contact the deep soil layer, which makes it impossible for the desulfurization gypsum to fully contact the salt in the saline-alkali land, resulting in poor improvement effect. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a method and device for improving and controlling saline-alkali land, mixing the saline-alkali land improver deep into the soil to solve the problem that the saline-alkali land improver stays on the surface of the land and cannot enter the deep soil to act.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A device for improving and treating saline-alkali land comprises a frame, wheels arranged on the frame and a trailer, wherein the frame is provided with:

[0008] A deep tillage unit is arranged at the front end of the frame, and the deep tillage unit includes a mounting frame hinged on the frame and a bracket arranged on the frame, a plurality of soil turning components are connected to the mounting frame, and a hydraulic rod is hinged between the mounting frame and the bracket;

[0009] The medicine broadcasting part is arranged at the rear end of the frame, and the medicine broadcasting part includes a material box arranged on the frame and a cover plate hinged on the material box, a plurality of arch disks are arranged at equal intervals along the length direction inside the material box, and a rotating tube penetrating all the arch disks is rotatably arranged inside the material box, a motor for driving the rotating tube to rotate is fixedly connected to the side wall of the frame, a retaining ring which is coaxially arranged with the arch disk and arranged inside the arch disk is connected to the rotating tube, the retaining ring is hollow and is connected to the material box through a material trough opened on the rotating tube, and a plurality of groups of plug-in feeding components are connected to the outer wall of the retaining ring.

[0010] Preferably, the soil turning assembly includes a mounting plate and a frame iron plugged into the mounting plate, the mounting plate and the frame iron cooperate to clamp the mounting frame, a sleeve plate is fixedly connected to the bottom of the mounting plate, a plug plate is plugged into the lower end of the sleeve plate, a plurality of groups of plug holes are provided on the plug plate, and the plug plate is connected to the sleeve plate by bolts plugged into the plug holes, and a plow blade is fixedly connected to the end of the plug plate.

[0011] Preferably, the plug-in feeding assembly includes a feeding plate connected to and communicated with the retaining ring, the end of the feeding plate is slidably connected to a sealing plate that seals the outlet of the end of the feeding plate, the sealing plate is fixedly connected to a baffle, and a stop plate is connected between the baffle and the feeding plate.

[0012] Preferably, the outlet end of the feeding plate is inclined away from the rotation direction.

[0013] Preferably, the plug-in feeding assembly includes a feeding plate connected to and communicated with the retaining ring, the inner wall of the feeding plate is fixedly connected to a mounting shell, the inner wall of the mounting shell is slidably connected to a counterweight block, and the end of the counterweight block is fixedly connected to a hook rod, the end of the hook rod is fixedly connected to a blocking block, the blocking block is plugged into the channel between the mounting shell and the feeding plate, and a spring mounted on the hook rod is provided inside the mounting shell.

[0014] Preferably, two ends of the spring are respectively in contact with the inner wall of the mounting shell and the side wall of the counterweight block.

[0015] Preferably, a plurality of the soil turning assemblies are staggeredly arranged in multiple rows on the mounting frame.

[0016] Preferably, a limit block for limiting the rotation of the mounting bracket is fixedly connected to the frame.

[0017] A method for improving and treating saline-alkali land, and a device for improving and treating saline-alkali land, specifically comprising the following steps:

[0018] Connect the towing vehicle through the trailer, place the improver in the material box, extend the hydraulic rod to adjust the mounting frame position so that the plow blade touches the ground;

[0019] The starting motor drives the rotating tube and the plow blade to rotate, and the improver inside the material box is discharged through the material trough, the retaining ring and the feeding plate in sequence;

[0020] The frame is driven by a towing vehicle through a trailer to travel on the saline-alkali land. The plowshare deeply plows the saline-alkali land. The feed plate breaks up the turned soil during the rotation and injects improver into the soil.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention respectively arranges a deep tillage part and a medicine broadcasting part on a frame, adjusts a tillage assembly to a suitable position by extending and retracting a hydraulic rod, and during the traveling of the frame driven by a traction vehicle via a trailer, the tillage assembly is plugged into the soil to turn over the soil, a motor drives a rotating pipe and a plug-in feeding assembly to rotate, and an improver placed in the material box passes through a material trough and a retaining ring in turn, and finally flows out from an end of the plug-in feeding assembly, and the rotating plug-in feeding assembly is plugged into the soil, and the outflowing improver is introduced into the deep soil for action, so that the improver is in full contact with the salt in the deep soil, thereby improving the improvement effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 3 It is a schematic diagram of the structure of the soil turning assembly of the present invention;

[0026] Figure 4 It is a schematic diagram of the material box structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the cross-sectional structure of the material box of the present invention;

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure of the retaining ring of the present invention;

[0029] Figure 7 It is a schematic cross-sectional structure diagram of the plug-in feeding assembly of the present invention;

[0030] In the figure: 1. frame; 2. wheels; 3. trailer; 4. mounting frame; 5. tillage assembly; 51. mounting plate; 52. frame iron; 53. sleeve plate; 54. plug plate; 55. plow blade; 6. hydraulic rod; 7. bracket; 8. motor; 9. material box; 10. cover plate; 11. arch plate; 12. rotating tube; 13. retaining ring; 14. material trough; 15. feeding plate; 16. mounting shell; 17. counterweight; 18. hook rod; 19. blocking block; 20. spring; 21. sealing plate; 22. baffle; 23. stopper; 24. limit block. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment:

[0033] See also Figure 1 - Figure 7 As shown, a device for improving and treating saline-alkali land comprises a frame 1, wheels 2 and a trailer 3 arranged on the frame 1, and the frame 1 is provided with:

[0034] The deep tillage part is arranged at the front end of the frame 1 and is used to turn over the soil of the saline-alkali land. The deep tillage part includes a mounting frame 4 hinged on the frame 1 and a bracket 7 arranged on the frame 1. The mounting frame 4 is connected to a plurality of groups of soil turning assemblies 5. A hydraulic rod 6 is hinged between the mounting frame 4 and the bracket 7. The hydraulic rod 6 adjusts the position of the soil turning assembly 5 by telescoping;

[0035] The medicine broadcasting part is arranged at the rear end of the frame 1 and is used for injecting the improver into the soil. The medicine broadcasting part includes a material box 9 arranged on the frame 1 and a cover plate 10 hinged on the material box 9. A plurality of arch disks 11 are arranged equidistantly in the length direction inside the material box 9, and a rotating tube 12 penetrating all the arch disks 11 is rotatably arranged inside the material box 9. A motor 8 for driving the rotating tube 12 to rotate is fixedly connected to the side wall of the frame 1. A retaining ring 13 which is coaxially arranged with the arch disk 11 and arranged inside the arch disk 11 is connected to the rotating tube 12. The motor 8 can drive the rotating tube 12 and the retaining ring 13 to rotate. The retaining ring 13 is hollow and is connected to the material box 9 through a material trough 14 provided on the rotating tube 12. The improver placed inside the material box 9 can enter the interior of the retaining ring 13 through the material trough 14. The outer wall of the retaining ring 13 is connected with a plurality of groups of plug-in feeding components. The improver inside the retaining ring 13 flows out through the plug-in feeding components and is mixed into the soil.

[0036] As can be seen from the above, when the operator needs to introduce the improver into the saline-alkali land, the trailer 3 can be connected by a tractor or other towing vehicle, and the frame 1 can be driven to move on the saline-alkali land by the trailer 3. The saline-alkali land improver is placed inside the material box 9, including but not limited to soluble calcium salts or gypsum, etc. The operator can drive the mounting frame 4 to rotate by the hydraulic rod 6, and then adjust the position of the soil turning component 5 on the mounting frame 4, so that the soil turning component 5 can be inserted into the soil to a certain depth. When the motor 8 drives the rotating tube 12 and the retaining ring 13 to rotate, the improver inside the material box 9 enters the retaining ring 13 through the material trough 14, and the improver inside the retaining ring 13 flows out from the end of the plug-in feeding component. Since the plug-in feeding component is installed outside the retaining ring 13, the retaining ring 13 will drive the plug-in feeding component to rotate together, and the rotating plug-in feeding component will be plugged into the turned soil, so as to inject the improver deep into the soil and improve the use effect of the improver.

[0037] Reference Figure 2 and Figure 3 The tillage assembly 5 comprises a mounting plate 51 and a frame iron 52 plugged into the mounting plate 51. The end of the frame iron 52 is provided with a thread, and the mounting plate 51 is provided with a through hole that matches the frame iron 52. When the end of the frame iron 52 passes through the through hole, a nut can be connected. The nut will limit the freedom of the frame iron 52 and prevent the end of the frame iron 52 from detaching from the mounting plate 51. The mounting plate 51 and the frame iron 52 cooperate to clamp the mounting frame 4. A sleeve plate 53 is fixedly connected to the bottom of the mounting plate 51. A plug plate 54 is plugged into the lower end of the sleeve plate 53. The plug plate 54 has multiple groups of sockets and is connected to the sleeve plate 53 by bolts plugged into the sockets. The operator can adjust the position of the bolts and the sockets according to different tillage depth requirements, so that the bolts are plugged into different sockets, thereby making the plug plate 54 extend out of the sleeve plate 53 by different lengths. A plow 55 is fixedly connected to the end of the plug plate 54 to change the depth of the plow 55 inserted into the soil.

[0038] When the trailer 3 drives the tilling assembly 5 forward, the plow 55 is inserted into the soil. The advancing plow 55 can turn over the land it passes through, exposing the deep soil and split up the lumps of saline-alkali soil to facilitate mixing the improver into the soil. The operator can adjust the tilling depth of the plow 55 as needed. The shape of the plow 55 is similar to the common iron plow on the market.

[0039] Reference Figure 4 - Figure 7The plug-in feeding assembly includes a feeding plate 15 connected to and communicated with the retaining ring 13, and a sealing plate 21 is slidably connected to the end of the feeding plate 15 to seal the outlet of the end of the feeding plate 15. A baffle 22 is fixedly connected to the sealing plate 21, and a retaining piece 23 is connected between the baffle 22 and the feeding plate 15. The retaining piece 23 is bent and provides a supporting force for the sealing plate 21 through the baffle 22 to help the sealing plate 21 seal the outlet of the feeding plate 15. The outlet end of the feeding plate 15 is tilted away from the rotation direction to prevent mud from clogging the outlet of the end of the feeding plate 15.

[0040] As can be seen from the above, when the motor 8 drives the rotating tube 12 and the retaining ring 13 to rotate, the retaining ring 13 drives the feeding plate 15 to rotate. When the feeding plate 15 is inserted into the soil, the soil contacts the baffle 22, providing a resistance for the baffle 22. The resistance pushes the sealing plate 21 backward through the baffle 22, forcing the stopper 23 to bend and deform. At this time, the improver inside the material box 9 enters the retaining ring 13 through the material trough 14, and the improver inside the retaining ring 13 flows out from the side outlet of the sealing plate 21 through the feeding plate 15. The improver will flow directly to the deep ground to take effect, thereby improving the effect of the improver.

[0041] The triggering condition of the plug-in feeding assembly is that the feeding plate 15 is plugged into the soil. However, when the operator needs to maintain the sealing plate 21, the baffle 22 or the resist 23, if the sealing plate 21 is opened, the improver inside the feeding plate 15 will flow out and cause waste. Therefore, it is necessary to add a structure inside the feeding plate 15 that can only be triggered when working.

[0042] Reference Figure 7 The plug-in feeding assembly also includes a mounting shell 16 connected to the inner wall of the feeding plate 15, the mounting shell 16 occupies a part of the internal channel of the feeding plate 15, that is, a part of the channel is left between the mounting shell 16 and the feeding plate 15 for the flow of the improver, the inner wall of the mounting shell 16 is slidably connected with a counterweight block 17, and the end of the counterweight block 17 is fixedly connected with a hook rod 18, the hook rod 18 is arranged in a J shape, and the bent end of the hook rod 18 is fixedly connected with a blocking block 19, the blocking block 19 is plugged into the channel between the mounting shell 16 and the feeding plate 15 to limit the flow of the improver, the mounting shell 16 is provided with a spring 20 sleeved on the hook rod 18, the two ends of the spring 20 are respectively abutted against the inner wall of the mounting shell 16 and the side wall of the counterweight block 17, so as to apply a pre-thrust to the counterweight block 17 to prevent the counterweight block 17 from moving at will, so that the hook rod 18 drives the blocking block 19 to stably block the flow channel of the improver.

[0043] When the motor 8 drives the rotating tube 12 to rotate, the rotating tube 12 drives the plug-in feeding assembly to rotate through the retaining ring 13. As the rotation speed of the retaining ring 13 increases, the counterweight block 17 compresses the spring 20 under the action of centrifugal force to move, and the counterweight block 17 drives the hook rod 18 and the blocking block 19 to move together. The moving blocking block 19 leaves the passage between the mounting shell 16 and the feeding plate 15. At this time, the internal passage of the feeding plate 15 is unobstructed, and the improver inside the retaining ring 13 can flow out through the feeding plate 15. At this time, the discharging condition of the plug-in feeding assembly is that the feeding plate 15 rotates and is inserted into the soil. When the feeding plate 15 stops rotating, even if the sealing plate 21 is opened, the improver will not flow out and be wasted.

[0044] Reference Figure 2 In order to enable the tillage assembly 5 to turn over and break up as much soil as possible on the surface of the saline-alkali land, multiple tillage assemblies 5 are staggered in multiple rows on the mounting frame 4 to avoid leaving dead corners between the tillage assemblies 5.

[0045] A limit block 24 for limiting the rotation of the mounting frame 4 is fixedly connected to the frame 1. When the hydraulic rod 6 is extended to drive the mounting frame 4 to rotate, the lower surface of the mounting frame 4 will abut against the limit block 24, providing a limit support point to prevent the turning assembly 5 from applying tension to the extended hydraulic rod 6, causing damage to the hydraulic rod 6.

[0046] A method for improving and treating saline-alkali land, and a device for improving and treating saline-alkali land, specifically comprising the following steps:

[0047] Connect the towing vehicle through the trailer 3, place the improver in the material box 9, extend the hydraulic rod 6 to adjust the position of the mounting frame 4, and as the mounting frame 4 rotates, the plow 55 gradually touches the ground. When the mounting frame 4 contacts the limit block 24, it stops rotating. At this time, the tilling assembly 5 is perpendicular to the ground. The operator can adjust the length of the plug plate 54 extending out of the sleeve plate 53 as needed, and then adjust the position of the plow 55, so that the plow 55 can be inserted at different depths of the soil;

[0048] The starter motor 8 drives the rotating tube 12, the retaining ring 13 and the plow blade 55 to rotate, and the improver in the material box 9 enters the feeding plate 15 through the material trough 14 and the retaining ring 13 in turn;

[0049] The frame 1 is driven by a towing vehicle through the trailer 3 to travel on the saline-alkali land, and the plow 55 deeply plows the saline-alkali land. The feed plate 15 breaks up the turned soil during the rotation process, and the motor 8 drives the rotating tube 12 and the retaining ring 13 to rotate, and the retaining ring 13 drives the plug-in feeding assembly to rotate. The counterweight block 17 compresses the spring 20 under the action of centrifugal force to drive the hook rod 18 and the blocking block 19 to move, and open the channel between the mounting shell 16 and the inner wall of the feed plate 15. When the plug-in feeding assembly is inserted into the soil, the baffle 22 drives the sealing plate 21 to move under the resistance of the soil. At this time, the stopper 23 bends and deforms, and the outlet at the end of the feed plate 15 is opened. The outflowing improver will directly enter the deep soil to enhance the effect of the improver. When the baffle 22 is separated from the soil, the stopper 23 resumes to push the baffle 22, and the baffle 22 drives the sealing plate 21 to slide and block the outlet at the end of the feed plate 15.

[0050] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0051] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0055] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A device for improving and treating saline-alkali land, comprising a frame (1), wheels (2) arranged on the frame (1) and a trailer (3), characterized in that: The frame (1) is provided with: A deep tillage unit is arranged at the front end of the frame (1), the deep tillage unit comprising a mounting frame (4) hinged on the frame (1) and a bracket (7) arranged on the frame (1), a plurality of sets of soil turning assemblies (5) are connected to the mounting frame (4), and a hydraulic rod (6) is hinged between the mounting frame (4) and the bracket (7); A medicine broadcasting unit is arranged at the rear end of a frame (1), the medicine broadcasting unit comprises a material box (9) arranged on the frame (1) and a cover plate (10) hinged on the material box (9), a plurality of arch disks (11) are arranged at equal intervals in the length direction inside the material box (9), and a rotating tube (12) penetrating all the arch disks (11) is rotatably arranged inside the material box (9), a motor (8) for driving the rotating tube (12) to rotate is fixedly connected to the side wall of the frame (1), a retaining ring (13) is connected to the rotating tube (12) and is coaxially arranged with the arch disk (11) and arranged inside the arch disk (11), and the retaining ring (13) is hollow. The retaining ring (13) is connected to the outer wall of the retaining ring (13) with a plurality of plug-in feeding components for conveying the improver, and the plug-in feeding components include a feeding plate (15) connected to the retaining ring (13) and connected to the retaining ring (13), and the end of the feeding plate (15) is slidably connected to a sealing plate (21) for sealing the outlet of the end of the feeding plate (15), and the sealing plate (21) is fixedly connected to a baffle (22), and a stopper (23) is connected between the baffle (22) and the feeding plate (15), and the outlet end of the feeding plate (15) is inclined away from the rotation direction.

2. The device for improving and treating saline-alkali land according to claim 1, characterized in that: The tilling assembly (5) comprises a mounting plate (51) and a frame iron (52) plugged into the mounting plate (51); the mounting plate (51) and the frame iron (52) cooperate to clamp the mounting frame (4); a sleeve plate (53) is fixedly connected to the bottom of the mounting plate (51); a plug plate (54) is plugged into the lower end of the sleeve plate (53); a plurality of groups of plug holes are formed on the plug plate (54), and the plug plate (54) is connected to the sleeve plate (53) via bolts plugged into the plug holes; a plow blade (55) is fixedly connected to the end of the plug plate (54).

3. The device for improving and treating saline-alkali land according to claim 1, characterized in that: The plug-in feeding assembly comprises a feeding plate (15) connected to a retaining ring (13) and in communication with the retaining ring (13); a mounting shell (16) is fixedly connected to the inner wall of the feeding plate (15); a counterweight (17) is slidably connected to the inner wall of the mounting shell (16); a hook rod (18) is fixedly connected to the end of the counterweight (17); a blocking block (19) is fixedly connected to the end of the hook rod (18); the blocking block (19) is plugged into the interior of a channel between the mounting shell (16) and the feeding plate (15); and a spring (20) sleeved on the hook rod (18) is provided inside the mounting shell (16).

4. The device for improving and treating saline-alkali land according to claim 3, characterized in that: Two ends of the spring (20) are respectively in contact with the inner wall of the mounting shell (16) and the side wall of the counterweight block (17).

5. The device for improving and treating saline-alkali land according to claim 1, characterized in that: The plurality of soil turning assemblies (5) are arranged in a staggered manner in a plurality of rows on the mounting frame (4).

6. The device for improving and treating saline-alkali land according to claim 1, characterized in that: A limit block (24) for limiting the rotation of the mounting frame (4) is fixedly connected to the frame (1).

7. A method for improving and treating saline-alkali land, characterized in that: The device for improving and treating saline-alkali land according to any one of claims 1 to 6 specifically comprises the following steps: Connecting a towing vehicle via a trailer (3), placing the improver in a material box (9), extending a hydraulic rod (6) to adjust the position of the mounting frame (4) so ​​that the plow blade (55) touches the ground; The motor (8) is started to drive the rotating tube (12) and the plow blade (55) to rotate, and the improver in the material box (9) is discharged through the material trough (14), the retaining ring (13) and the feeding plate (15) in sequence; The frame (1) is driven by a traction vehicle via a trailer (3) to travel on the saline-alkali land, the plow (55) deeply ploughs the saline-alkali land, and the feeding plate (15) breaks up the turned soil during the rotation process and injects an improver into the soil.

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