Device and method for producing and preparing ferric oxide-based desulfurizing agent

Abstract

The invention belongs to the technical field of desulfurizer production equipment, and discloses an iron oxide-based desulfurizer production and preparation device and a method thereof.The iron oxide-based desulfurizer production and preparation device comprises a reaction tank, a top cover is arranged at the top end of the reaction tank, a feeding pipe is arranged on one side of the top of the reaction tank, a discharging opening is formed in the bottom end of the reaction tank, and a lifting mechanism is arranged at the top of the reaction tank; a baffle is arranged in the reaction tank, a fixing plate is arranged at the bottom end of the baffle, a connecting plate is arranged between the baffle and the fixing plate, and a leveling assembly is arranged at the bottom end of the fixing plate. According to the leveling device for the reaction tank, the leveling assembly is designed, and the leveling mechanism at the bottom end can operate to realize leveling operation by utilizing the matching of the connection of a plurality of structures of the rotating rod, the driving mechanism and the linkage mechanism, so that materials in the reaction tank are uniformly filled. According to the leveling device, the lifting mechanism is designed, the height of the leveling assembly can be adjusted by arranging the lifting mechanism, and therefore materials with different depths can be leveled.

Description

Technical Field

[0001] The present application relates to the technical field of desulfurization agent production equipment, and more specifically, to an iron oxide-based desulfurization agent production and preparation device and method thereof. Background Art

[0002] Iron oxide desulfurizer is a high-efficiency gas purifier made of iron oxide as the main active component and other promoters. Between 20℃ and 100℃, it has a high removal performance for hydrogen sulfide, and also has a certain removal effect on mercaptan organic sulfur and most nitrogen oxides. Iron oxide desulfurizer is popular among users because of its large sulfur capacity, low price, and air regeneration at room temperature. This desulfurizer is suitable for the fine removal of H2S from various gases such as natural gas, water gas, semi-water gas, air gas, coke oven gas, shift gas, CO2 regeneration gas, food CO2, steel mill raw gas, biogas, petrochemical industry, etc. It can also be used in conjunction with hydrolysis 504 catalyst to make up for the shortcomings of activated carbon fine desulfurizer, making the new process of iron oxide desulfurizer more widely used.

[0003] When producing iron oxide-based desulfurizers, one of the steps is filling. The quality of the desulfurizer filling directly affects its use effect after production. Some existing iron oxide-based desulfurizers are mainly filled manually. However, this method may cause uneven filling during the filling process, thereby affecting the subsequent production of the desulfurizer.

[0004] In order to solve the above problems, the present application provides an iron oxide-based desulfurization agent production and preparation device and method. Summary of the invention

[0005] The present application provides an iron oxide-based desulfurizing agent production and preparation device and method thereof using the following technical solutions:

[0006] A device and method for producing an iron oxide-based desulfurizing agent, comprising a reaction tank, wherein a top cover is arranged at the top of the reaction tank, a feed pipe is arranged at one side of the top of the reaction tank, a discharge port is arranged at the bottom of the reaction tank, a mounting frame is sleeved at the bottom of the reaction tank, legs are symmetrically fixedly installed at the four corners of the bottom of the mounting frame, a lifting mechanism is arranged at the top of the reaction tank, a baffle is arranged inside the reaction tank, a fixed plate is arranged at the bottom of the baffle, a connecting plate is arranged between the baffle and the fixed plate, and a leveling component is arranged at the bottom of the fixed plate.

[0007] Furthermore, the leveling assembly includes a second servo motor, a rotating rod, a driving mechanism, a linkage mechanism and a leveling mechanism. The second servo motor is arranged on the top side of the fixed plate. An axial hole matching the rotating rod is opened on the inner side of the fixed plate. The rotating rod is arranged inside the fixed plate.

[0008] Through the above technical solution, the material inside the reaction tank can be leveled by the mutual cooperation between the internal structures of the leveling components, so that the material inside the reaction tank is filled evenly, which is convenient for subsequent material reaction.

[0009] Furthermore, the driving mechanism includes a third servo motor, a driving rod, a first belt, a first pulley and a second pulley. The third servo motor is arranged on the top of the fixed plate. A connecting hole adapted to the driving rod is opened on the other side of the interior of the fixed plate. The driving rod is arranged inside the connecting hole, and the first pulley is sleeved on the bottom of the driving rod.

[0010] Through the above technical solution, the first pulley is connected to the third servo motor via the driving rod, so that one end of the first belt can be driven to operate via the first pulley.

[0011] Furthermore, one end of the first belt is sleeved on the outside of the second pulley, and the other end of the first belt is sleeved on the outside of the first pulley, and the first pulley and the second pulley are connected through the first belt transmission.

[0012] According to the above technical solution, since the first pulley and the second pulley are connected via the first belt transmission, when the first pulley rotates, the second pulley can be driven to rotate.

[0013] Furthermore, the linkage mechanism includes a sleeve rod, a third pulley, a fourth pulley and a second belt, the top end of the sleeve rod is rotatably connected to the bottom end of the fixed plate, the second pulley is sleeved on the top of the sleeve rod, and the sleeve rod is sleeved on the outside of the rotating rod.

[0014] Through the above technical solution, the driving mechanism and the leveling mechanism are connected by setting a linkage mechanism to form a whole, so that the operation of the entire device is more convenient and quick.

[0015] Furthermore, the third pulley is sleeved on the bottom of the sleeve rod, one end of the second belt is sleeved on the outside of the third pulley, and the other end of the second belt is sleeved on the outside of the fourth pulley.

[0016] Through the above technical solution, when the sleeve rod drives the third pulley to rotate, the fourth pulley can be driven to rotate through the second belt, and then the first scraper can be driven to rotate through the connecting rod.

[0017] Furthermore, the leveling mechanism includes a connecting rod, a first scraper, a second scraper and a bottom plate, the top end of the bottom plate is arranged at the bottom end of the sleeve rod, the bottom plate is sleeved on the outside of the rotating rod, the top end of the second scraper is arranged at the bottom end of the rotating rod, the top of the connecting rod is arranged inside the fourth pulley, and the top end of the first scraper is arranged at the bottom end of the connecting rod.

[0018] Through the above technical solution, the first scraper and the second scraper can be driven to perform the leveling operation under the mutual cooperation between the internal structures of the leveling mechanism.

[0019] Furthermore, the lifting mechanism includes a worm, a worm wheel, a threaded sleeve, a threaded rod and a telescopic rod, a first servo motor is arranged at one end of the worm, and fixed seats are symmetrically arranged at both ends of the worm, and the outer wall of the worm is meshed with the outer wall of the worm wheel.

[0020] Through the above technical solution, by setting a lifting mechanism, the height of the leveling component can be adjusted, so that the leveling operation of materials of different depths can be realized.

[0021] Furthermore, the worm gear sleeve is arranged on the outside of the threaded sleeve, the threaded sleeve is arranged on the top of the top cover, the top of the threaded rod is provided with a top block, the threaded rod is arranged inside the threaded sleeve, the telescopic rod sleeve is arranged on the outside of the threaded rod, and the bottom end of the telescopic rod is fixedly connected to the top of the baffle.

[0022] Through the above technical solution, when the worm rotates, the worm wheel can be turned to drive the threaded sleeve to rotate, so that the threaded rod moves up and down inside the threaded sleeve, thereby realizing the height adjustment of the leveling assembly.

[0023] First, pour the material from the feed pipe into the reaction tank, then start the lifting mechanism to drop the leveling component, and then start the second servo motor and the third servo motor respectively. At this time, the following processes will be performed:

[0024] Process 1: When the second servo motor is running, it can drive the rotating rod to rotate, and then the second scraper at the bottom can rotate, and then the area where it is located can be leveled. At the same time, the rotating rod drives the connecting rod to rotate in a circle through the bottom plate;

[0025] Process 2: When the third servo motor is running, the driving rod drives the first pulley to rotate coaxially, and then the first pulley drives the first belt to run;

[0026] Process 3: When the first belt rotates, the sleeve rod can be driven to rotate through the second pulley, and then the sleeve rod can drive the third pulley to rotate:

[0027] Process 4: When the third pulley rotates, the fourth pulley can be driven to rotate through the second belt, and then the first scraper can be driven to rotate in a circle through the connecting rod, thereby achieving leveling operation at the same time.

[0028] In summary, this application includes the following beneficial technical effects:

[0029] 1. The invention designs a leveling assembly, and utilizes the coordination among multiple structural connections of a rotating rod, a driving mechanism, and a linkage mechanism, so that the bottom leveling mechanism can be operated to achieve a leveling operation, thereby making the material inside the reaction tank evenly filled.

[0030] 2. The invention designs a lifting mechanism. By setting the lifting mechanism, the height of the leveling component can be adjusted, so that the leveling operation of materials of different depths can be realized, making the whole device more convenient and quick to use.

[0031] 3. The invention, by setting the mutual coordination between the internal structures of the leveling mechanism, enables the first scraper and the second scraper at the bottom to operate synchronously, and can perform leveling operations on the material in all directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the overall structure of this application;

[0033] Figure 2 This is a rear view structural diagram of the present application;

[0034] Figure 3 This is a first cross-sectional structural schematic diagram of the present application;

[0035] Figure 4 For this application Figure 3 A schematic diagram of the structure enlargement in the middle;

[0036] Figure 5 For this application Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0037] Figure 6 For this application Figure 3 Enlarged schematic diagram of the structure at point C in the middle.

[0038] Description of the numbers in the figure:

[0039] 1. Reactor; 2. Top cover; 3. Feed pipe; 4. Mounting frame; 5. Leg; 6. Discharge port; 7. Threaded rod; 8. Baffle; 9. Fixed plate; 10. First scraper; 11. Second scraper; 12. Fixed seat; 13. First servo motor; 14. Worm; 15. Worm wheel; 16. Threaded sleeve; 17. Top block; 18. Telescopic rod; 19. Third servo motor; 20. Connecting plate; 21. Second servo motor; 22. Rotating rod; 23. Second pulley; 24. First belt; 25. Driving rod; 26. First pulley; 27. Fourth pulley; 28. Connecting rod; 29. ​​Second belt; 30. Third pulley; 31. Sleeve rod; 32. Bottom plate. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0041] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] Example:

[0044] The present application discloses a method and apparatus for producing an iron oxide-based desulfurizing agent. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , comprising a reaction tank 1, a top cover 2 is arranged at the top of the reaction tank 1, a feeding pipe 3 is arranged on one side of the top of the reaction tank 1, a discharge port 6 is arranged at the bottom of the reaction tank 1, a mounting frame 4 is sleeved at the bottom of the reaction tank 1, legs 5 are symmetrically fixedly installed at the four corners of the bottom end of the mounting frame 4, a lifting mechanism is arranged at the top of the reaction tank 1, a baffle 8 is arranged inside the reaction tank 1, a fixing plate 9 is arranged at the bottom end of the baffle 8, a connecting plate 20 is arranged between the baffle 8 and the fixing plate 9, and a leveling component is arranged at the bottom end of the fixing plate 9.

[0045] See also Figure 3 , Figure 5 and Figure 6The leveling assembly includes a second servo motor 21, a rotating rod 22, a driving mechanism, a linkage mechanism and a leveling mechanism. The second servo motor 21 is arranged on one side of the top end of the fixed plate 9. An axial hole matched with the rotating rod 22 is opened on one side of the inner side of the fixed plate 9. The rotating rod 22 is arranged inside the fixed plate 9.

[0046] Through the mutual cooperation between the internal structures of the leveling components, the material inside the reaction tank 1 can be leveled, so that the material inside the reaction tank 1 is filled evenly, which is convenient for subsequent material reaction.

[0047] See also Figure 3 , Figure 5 and Figure 6 The driving mechanism includes a third servo motor 19, a driving rod 25, a first belt 24, a first pulley 26 and a second pulley 23. The third servo motor 19 is arranged on the top of the fixed plate 9. A connecting hole compatible with the driving rod 25 is opened on the other side of the fixed plate 9. The driving rod 25 is arranged inside the connecting hole, and the first pulley 26 is sleeved on the bottom of the driving rod 25.

[0048] The first pulley 26 is connected to the third servo motor 19 via a driving rod 25 , so that one end of the first belt 24 can be driven to operate via the first pulley 26 .

[0049] See also Figure 3 , Figure 5 and Figure 6 One end of the first belt 24 is sleeved on the outside of the second pulley 23, and the other end of the first belt 24 is sleeved on the outside of the first pulley 26. The first pulley 26 and the second pulley 23 are connected through the first belt 24.

[0050] Since the first pulley 26 and the second pulley 23 are connected to each other through the first belt 24 , when the first pulley 26 rotates, the second pulley 23 can be driven to rotate.

[0051] See also Figure 3 , Figure 5 and Figure 6 The linkage mechanism includes a sleeve rod 31, a third pulley 30, a fourth pulley 27 and a second belt 29. The top end of the sleeve rod 31 is rotatably connected to the bottom end of the fixed plate 9. The second pulley 23 is sleeved on the top of the sleeve rod 31, and the sleeve rod 31 is sleeved on the outside of the rotating rod 22.

[0052] The driving mechanism and the leveling mechanism are connected by setting a linkage mechanism to form a whole, so that the operation of the whole device is more convenient and faster.

[0053] See also Figure 3 , Figure 5 and Figure 6The third pulley 30 is sleeved on the bottom of the sleeve rod 31 , one end of the second belt 29 is sleeved on the outside of the third pulley 30 , and the other end of the second belt 29 is sleeved on the outside of the fourth pulley 27 .

[0054] When the sleeve rod 31 drives the third pulley 30 to rotate, the fourth pulley 27 can be driven to rotate through the second belt 29 , and then the first scraper 10 can be driven to rotate through the connecting rod 28 .

[0055] See also Figure 3 and Figure 6 The leveling mechanism includes a connecting rod 28, a first scraper 10, a second scraper 11 and a bottom plate 32. The top end of the bottom plate 32 is arranged at the bottom end of the sleeve rod 31, and the bottom plate 32 is sleeved on the outside of the rotating rod 22. The top end of the second scraper 11 is arranged at the bottom end of the rotating rod 22. The top of the connecting rod 28 is arranged inside the fourth pulley 27, and the top end of the first scraper 10 is arranged at the bottom end of the connecting rod 28.

[0056] The bottom end of the sleeve rod 31 is fixedly connected to the top end of the bottom plate 32, and the top end of the sleeve rod 31 is rotatably connected to the bottom end of the fixed plate 9. With the mutual cooperation between the internal structures of the leveling mechanism, the first scraper 10 and the second scraper 11 can be driven to perform the leveling operation.

[0057] See also Figure 2 and Figure 3 The lifting mechanism includes a worm 14, a worm wheel 15, a threaded sleeve 16, a threaded rod 7 and a telescopic rod 18. A first servo motor 13 is provided at one end of the worm 14, and fixed seats 12 are symmetrically provided at both ends of the worm 14. The outer wall of the worm 14 is meshed with the outer wall of the worm wheel 15.

[0058] By setting up a lifting mechanism, the height of the leveling component can be adjusted, so that leveling operations can be performed on materials of different depths.

[0059] See also Figure 2 and Figure 3 The worm gear 15 is sleeved on the outside of the threaded sleeve 16, the threaded sleeve 16 is arranged at the top of the top cover 2, the top of the threaded rod 7 is provided with a top block 17, the threaded rod 7 is arranged inside the threaded sleeve 16, the telescopic rod 18 is sleeved on the outside of the threaded rod 7, and the bottom end of the telescopic rod 18 is fixedly connected to the top of the baffle 8.

[0060] When the worm 14 rotates, the worm wheel 15 can be moved to drive the threaded sleeve 16 to rotate, so that the threaded rod 7 moves up and down inside the threaded sleeve 16, thereby achieving height adjustment of the leveling assembly.

[0061] The bottom end of the threaded rod 7 is fixedly connected to the top end of the baffle 8, the bottom end of the threaded sleeve 16 is rotatably connected to the top end of the top cover 2, a threaded hole matching the threaded rod 7 is provided inside the threaded sleeve 16, and the threaded rod 7 and the threaded sleeve 16 are rotatably connected. When the threaded sleeve 16 rotates clockwise, the threaded rod 7 can be raised, and vice versa.

[0062] First, pour the material from the feed pipe 3 into the reaction tank 1, then start the lifting mechanism to drop the leveling component, and then start the second servo motor 21 and the third servo motor 19 respectively. At this time, the following processes will be performed:

[0063] Process 1: When the second servo motor 21 is running, it can drive the rotating rod 22 to rotate, and then the second scraper 11 at the bottom end rotates, and then the area where it is located is leveled. At the same time, the rotating rod 22 drives the connecting rod 28 to rotate in a circle through the bottom plate 32;

[0064] Process 2: When the third servo motor 19 is running, the driving rod 25 drives the first pulley 26 to rotate coaxially, and then the first pulley 26 drives the first belt 24 to run;

[0065] Process 3: When the first belt 24 rotates, the sleeve rod 31 can be driven to rotate through the second pulley 23, and then the sleeve rod 31 drives the third pulley 30 to rotate:

[0066] Process 4: When the third pulley 30 rotates, the fourth pulley 27 can be driven to rotate through the second belt 29, and then the first scraper 10 can be driven to rotate in a circle through the connecting rod 28, thereby achieving a leveling operation.

[0067] The implementation principle of this embodiment is: start the second servo motor 21 and the third servo motor 19 respectively. When the second servo motor 21 is running, it can drive the rotating rod 22 to rotate, and then the second scraper 11 at the bottom end rotates, and then the area where it is located is leveled. At the same time, the rotating rod 22 drives the connecting rod 28 to rotate in a circle through the bottom plate 32, thereby driving the first scraper 10 to make a circular motion.

[0068] When the third servo motor 19 is running, the first pulley 26 is driven to rotate coaxially through the driving rod 25, and then the first pulley 26 drives the first belt 24 to operate. Since the first pulley 26 and the second pulley 23 are connected through the first belt 24, when the first belt 24 rotates, the sleeve rod 31 can be driven to rotate through the second pulley 23, and then the third pulley 30 can be driven to rotate through the sleeve rod 31, and then the connecting rod 28 can be driven to rotate through the second belt 29 and the fourth pulley 27, thereby driving the first scraper 10 to rotate, so that the first scraper 10 can perform leveling operations over a wide range.

[0069] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device and method for producing an iron oxide-based desulfurizing agent, comprising a reaction tank (1), characterized in that: The top of the reaction tank (1) is provided with a top cover (2), a feeding pipe (3) is provided on one side of the top of the reaction tank (1), a discharge port (6) is provided at the bottom of the reaction tank (1), a mounting frame (4) is sleeved on the bottom of the reaction tank (1), legs (5) are symmetrically fixedly installed at the four corners of the bottom of the mounting frame (4), a lifting mechanism is provided at the top of the reaction tank (1), a baffle (8) is provided inside the reaction tank (1), a fixing plate (9) is provided at the bottom of the baffle (8), a connecting plate (20) is provided between the baffle (8) and the fixing plate (9), and a leveling component is provided at the bottom of the fixing plate (9).

2. The iron oxide-based desulfurizing agent production and preparation device and method according to claim 1, characterized in that: The leveling assembly comprises a second servo motor (21), a rotating rod (22), a driving mechanism, a linkage mechanism and a leveling mechanism, wherein the second servo motor (21) is arranged on one side of the top end of a fixed plate (9), an inner side of the fixed plate (9) is provided with an axial hole matched with the rotating rod (22), and the rotating rod (22) is arranged inside the fixed plate (9).

3. The iron oxide-based desulfurizing agent production and preparation device and method according to claim 2, characterized in that: The driving mechanism comprises a third servo motor (19), a driving rod (25), a first belt (24), a first pulley (26) and a second pulley (23); the third servo motor (19) is arranged on the top of a fixed plate (9); a connecting hole matched with the driving rod (25) is opened on the other side of the fixed plate (9); the driving rod (25) is arranged inside the connecting hole; and the first pulley (26) is sleeved on the bottom of the driving rod (25).

4. The iron oxide-based desulfurizing agent production and preparation device and method according to claim 3, characterized in that: One end of the first belt (24) is sleeved on the outside of the second pulley (23), and the other end of the first belt (24) is sleeved on the outside of the first pulley (26). The first pulley (26) and the second pulley (23) are connected in transmission via the first belt (24).

5. The iron oxide-based desulfurizing agent production and preparation device and method according to claim 3, characterized in that: The linkage mechanism comprises a sleeve rod (31), a third pulley (30), a fourth pulley (27) and a second belt (29); the top end of the sleeve rod (31) is rotatably connected to the bottom end of the fixed plate (9); the second pulley (23) is sleeved on the top of the sleeve rod (31); and the sleeve rod (31) is sleeved on the outside of the rotating rod (22).

6. The device and method for producing an iron oxide-based desulfurizing agent according to claim 5, characterized in that: The third pulley (30) is sleeved on the bottom of the sleeve rod (31), one end of the second belt (29) is sleeved on the outside of the third pulley (30), and the other end of the second belt (29) is sleeved on the outside of the fourth pulley (27).

7. The iron oxide-based desulfurizing agent production and preparation device and method according to claim 5, characterized in that: The leveling mechanism comprises a connecting rod (28), a first scraper (10), a second scraper (11) and a bottom plate (32); the top end of the bottom plate (32) is arranged at the bottom end of the sleeve rod (31); the bottom plate (32) is sleeved on the outside of the rotating rod (22); the top end of the second scraper (11) is arranged at the bottom end of the rotating rod (22); the top of the connecting rod (28) is arranged inside the fourth pulley (27); and the top end of the first scraper (10) is arranged at the bottom end of the connecting rod (28).

8. The iron oxide-based desulfurizing agent production and preparation device and method according to claim 1, characterized in that: The lifting mechanism comprises a worm (14), a worm wheel (15), a threaded sleeve (16), a threaded rod (7) and a telescopic rod (18); a first servo motor (13) is arranged at one end of the worm (14); fixed seats (12) are symmetrically arranged at both ends of the worm (14); and an outer wall of the worm (14) is meshed with an outer wall of the worm wheel (15).

9. The device and method for producing an iron oxide-based desulfurizing agent according to claim 8, characterized in that: The worm gear (15) is sleeved on the outside of the threaded sleeve (16), the threaded sleeve (16) is arranged on the top of the top cover (2), the top of the threaded rod (7) is provided with a top block (17), the threaded rod (7) is arranged inside the threaded sleeve (16), the telescopic rod (18) is sleeved on the outside of the threaded rod (7), and the bottom end of the telescopic rod (18) is fixedly connected to the top of the baffle (8).

10. An iron oxide-based desulfurizing agent production and preparation device and method, characterized in that: The material is first poured into the reaction tank (1) from the feed pipe (3), and then the lifting mechanism is started to drop the leveling component, and then the second servo motor (21) and the third servo motor (19) are started respectively. At this time, the following processes will be performed: Process 1: When the second servo motor (21) is running, it can drive the rotating rod (22) to rotate, and then the second scraper 11 at the bottom end rotates, and then the area where it is located is leveled. At the same time, the rotating rod (22) drives the connecting rod (28) to rotate in a circle through the bottom plate (32); Process 2: When the third servo motor (19) is running, the driving rod (25) drives the first pulley (26) to rotate coaxially, and then the first pulley (26) drives the first belt (24) to run; Process 3: When the first belt (24) rotates, the sleeve rod (31) can be driven to rotate through the second pulley (23), and then the third pulley (30) can be driven to rotate through the sleeve rod (31): Process 4: When the third pulley (30) rotates, the fourth pulley (27) can be driven to rotate through the second belt (29), and then the first scraper (10) can be driven to rotate in a circle through the connecting rod (28), thereby achieving a leveling operation.

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