Pneumatic urea particle conveying equipment

Abstract

The utility model relates to the technical field of conveying equipment, and discloses urea particle pneumatic conveying equipment which comprises a hopper, and a guide block is fixedly installed in the hopper. According to the urea particle pneumatic conveying equipment, when a driving motor runs, a rotating shaft drives a first driving wheel and one long shaft to rotate, at the moment, one long shaft drives a second gear and the other long shaft to rotate in the opposite direction through a first gear, and at the moment, two smashing rollers are driven by the two long shafts to rotate in the opposite direction; meanwhile, a first driving wheel drives a first driven wheel to rotate through a first transmission belt, at the moment, the first driven wheel drives an oval block to rotate through a circular shaft, at the moment, a screen is driven by the oval block to vibrate up and down, and the small urea particles fall through meshes of the screen at the moment; and large urea particles enter the crushing box through the connecting port under the guidance of the screen and are crushed by the two crushing rollers, so that the large-volume urea particles can be screened and crushed.

Description

Technical Field

[0001] This utility model relates to the field of conveying equipment technology, and more specifically, to a pneumatic conveying equipment for urea granules. Background Technology

[0002] Urea is a white crystalline solid that is tasteless and odorless. It is one of the simplest organic compounds and is the main nitrogen-containing end product of protein metabolism in mammals and some fish. It can be used as fertilizer, animal feed, explosives, glue stabilizer, and chemical raw material.

[0003] When operators prepare and process urea, they often need to use conveying equipment. In the existing technology, some companies use pneumatic conveying equipment to transport urea granules. Although the existing pneumatic conveying equipment has basic conveying functions, it is not effective because there are often some large particles in the urea granules. These large particles are heavy, so the pneumatic conveying equipment will not be able to transport them well. As a result, large urea particles will accumulate in the conveying pipeline. When the accumulation is large, it will cause blockage inside the pipeline, thus affecting the normal conveying operation. Therefore, it needs to be improved. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a pneumatic conveying urea granule conveying device, which has the advantage of being able to screen and crush large-volume urea granules.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic conveying urea granule conveying device, comprising:

[0006] The hopper has a tank car at its top, which is connected to the hopper via a quick connector. A guide block is fixedly installed inside the hopper. A connection port is provided on the right side of the hopper, and a crushing box is fixedly installed on the right side of the hopper. The inside of the hopper is connected to the inside of the crushing box via the connection port. Two long shafts are movably sleeved inside the crushing box. Crushing rollers are fixedly sleeved on the outer surfaces of both long shafts. A round shaft is fixedly sleeved inside the hopper, and a first driven wheel is fixedly sleeved at the front end of the round shaft.

[0007] A motion mechanism is disposed on the front of the hopper;

[0008] The motion mechanism includes a support frame, the rear end of which is fixedly connected to the front end of the hopper. A drive motor is fixedly mounted on the front end of the support frame. A rotating shaft is fixedly sleeved at the other end of the output shaft of the drive motor. The rear end of the rotating shaft is fixedly connected to the front end of a long shaft. A first gear and a second gear are respectively fixedly sleeved at the front ends of the two long shafts. The first gear and the second gear are meshed together. A first drive wheel is fixedly sleeved on the outer surface of the rotating shaft. The first drive wheel is connected to a first driven wheel via a first transmission belt. An elliptical block is fixedly sleeved on the outer surface of the round shaft. A screen is movably connected to the outer surface of the elliptical block. The outer surface of the screen is movably sleeved with the interior of the hopper.

[0009] As a preferred embodiment of this utility model, a fixed sleeve is fixedly installed inside the hopper, and a moving rod is movably connected inside the fixed sleeve. The top end of the moving rod is fixedly connected to the bottom end of the screen, and a spring is fixedly installed at the bottom end of the moving rod. The bottom end of the spring is fixedly connected to the inside of the fixed sleeve.

[0010] As a preferred embodiment of this utility model, a conveying pipe is fixedly installed at the bottom of the hopper, and a connecting pipe is fixedly sleeved inside the conveying pipe. The top of the outer surface of the connecting pipe is fixedly sleeved with the bottom of the crushing box.

[0011] As a preferred embodiment of this utility model, a fixed box is fixedly installed at the bottom end of the conveying pipe, a short pipe is fixedly installed at the bottom end of the fixed box, a three-way pipe is fixedly sleeved on the bottom end of the outer surface of the short pipe, a conveying pipe is fixedly sleeved on the inside of the left side of the three-way pipe, and the other end of the conveying pipe is connected to a urea dissolving tank.

[0012] As a preferred embodiment of this utility model, an air inlet pipe is fixedly sleeved inside the right side of the three-way pipe, and a fan is fixedly sleeved at the top of the outer surface of the air inlet pipe.

[0013] As a preferred embodiment of this utility model, a first rotating shaft is movably sleeved inside the left side of the front of the hopper, and a second driven wheel is fixedly sleeved at the front end of the first rotating shaft.

[0014] As a preferred embodiment of this utility model, a fixing plate is fixedly installed on the outer surface of the hopper, and a second rotating shaft is movably sleeved inside the bottom front end of the fixing plate. The outer surface of the second rotating shaft is movably sleeved with the inside of the fixing box, and a third driven wheel is fixedly sleeved at the front end of the second rotating shaft.

[0015] As a preferred embodiment of this utility model, a fixing frame is fixedly installed on the front of the fixing plate, a power motor is fixedly installed on the front of the fixing frame, and a second drive wheel is fixedly sleeved on the other end of the output shaft of the power motor. The second drive wheel is connected to the second driven wheel and the third driven wheel respectively through a second transmission belt.

[0016] As a preferred embodiment of the present invention, a rotating block is fixedly sleeved on the outer surface of the first rotating shaft, and the outer surface of the rotating block is movably connected to the outer surfaces of the hopper and the guide block, respectively.

[0017] As a preferred embodiment of the present invention, a rotating block is fixedly sleeved on the outer surface of the second rotating shaft, and the outer surface of the rotating block is movably sleeved with the interior of the fixed box.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This pneumatic conveying urea granule conveying equipment, when the drive motor is running, the rotating shaft will drive the first drive wheel and one of the long shafts to rotate. At this time, one of the long shafts will drive the second gear and the other long shaft to rotate in the opposite direction through the first gear. At this time, the two crushing rollers will rotate in the opposite direction under the drive of the two long shafts. At the same time, the first drive wheel will drive the first driven wheel to rotate through the first transmission belt. At this time, the first driven wheel will drive the elliptical block to rotate through the round shaft. At this time, the screen will vibrate up and down under the drive of the elliptical block. Small urea granules will fall through the mesh of the screen, while large urea granules will enter the crushing box through the connection port under the guidance of the screen and be crushed by the two crushing rollers, thereby enabling the screening and crushing of large-volume urea granules.

[0020] 2. In this pneumatic conveying urea granule conveying device, when the power motor is running, the second drive wheel will drive the second driven wheel and the third driven wheel to rotate through the second transmission belt. At this time, the second driven wheel will drive the rotating block to rotate through the first rotating shaft. Due to the design of the rotating block, the urea granules at the top of the guide block can be fed in batches and in a quantitative manner. At the same time, the third driven wheel will drive the rotating block to rotate through the second rotating shaft. Due to the design of the rotating block, the urea granules inside the fixed box can be fed in batches and in a quantitative manner, thereby preventing the situation of excessive feeding at the same time and causing blockage inside the conveying equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 4 This is a cross-sectional view of the crushing roller of this utility model;

[0025] Figure 5 This is a cross-sectional view of the elliptical block of this utility model.

[0026] Figure 6 This is a schematic diagram of the structure of the motion rod of this utility model;

[0027] Figure 7 This is a cross-sectional structural diagram of the spring of this utility model.

[0028] In the diagram: 1. Hopper; 2. Connecting port; 3. Crushing box; 4. Long shaft; 5. Round shaft; 6. First driven wheel; 7. Support; 8. Drive motor; 9. Rotating shaft; 10. First drive wheel; 11. First transmission belt; 12. Elliptical block; 13. Screen; 14. First gear; 15. Second gear; 16. Fixed sleeve; 17. Moving rod; 18. Spring; 19. Conveying pipe; 20. Connecting pipe; 21. Fixed box; 22. Short pipe; 23. T-shaped pipe; 24. Conveying pipe; 25. Air inlet pipe; 26. Fan; 27. Fixed plate; 28. First rotating shaft; 29. ​​Second driven wheel; 30. Rotating block; 31. Second rotating shaft; 32. Third driven wheel; 33. Rotating block; 34. Fixed frame; 35. Power motor; 36. Second drive wheel; 37. Second transmission belt; 38. Crushing roller; 39. Guide block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figures 1 to 7 As shown, this utility model provides a pneumatic conveying urea granule conveying device, comprising:

[0031] The hopper 1 has a tank car at its top, which is connected to the hopper 1 via a quick connector. A guide block 39 is fixedly installed inside the hopper 1. A connection port 2 is opened on the right side of the hopper 1. A crushing box 3 is fixedly installed on the right side of the hopper 1. The inside of the hopper 1 is connected to the inside of the crushing box 3 through the connection port 2. Two long shafts 4 are movably sleeved inside the crushing box 3. Crushing rollers 38 are fixedly sleeved on the outer surface of both long shafts 4. A round shaft 5 is fixedly sleeved inside the hopper 1. A first driven wheel 6 is fixedly sleeved at the front end of the round shaft 5.

[0032] The motion mechanism is located on the front of the hopper 1;

[0033] The motion mechanism includes a support 7, the rear end of which is fixedly connected to the front of the hopper 1. A drive motor 8 is fixedly mounted on the front of the support 7. A rotating shaft 9 is fixedly sleeved on the other end of the output shaft of the drive motor 8. The rear end of the rotating shaft 9 is fixedly connected to the front end of the long shaft 4. A first gear 14 and a second gear 15 are fixedly sleeved on the front ends of the two long shafts 4, respectively. The first gear 14 and the second gear 15 are meshed together. A first drive wheel 10 is fixedly sleeved on the outer surface of the rotating shaft 9. The first drive wheel 10 is connected to the first driven wheel 6 via a first transmission belt 11. An elliptical block 12 is fixedly sleeved on the outer surface of the round shaft 5. A screen 13 is movably connected to the outer surface of the elliptical block 12. The outer surface of the screen 13 is movably sleeved with the interior of the hopper 1.

[0034] When the drive motor 8 is running, the rotating shaft 9 will drive the first drive wheel 10 to rotate. At this time, the first drive wheel 10 will drive the first driven wheel 6 to rotate through the first transmission belt 11. The first driven wheel 6 will drive the elliptical block 12 to rotate through the round shaft 5. At this time, the screen 13 will vibrate up and down under the drive of the elliptical block 12, thereby screening the urea particles. Large urea particles will be guided by the screen 13 and enter the interior of the crushing box 3 through the connection port 2. At the same time, the rotating shaft 9 will drive the first gear 14 to rotate through one of the long shafts 4. The first gear 14 will drive the other long shaft 4 to rotate in the opposite direction through the second gear 15. At this time, the two long shafts 4 will drive the two crushing rollers 38 to rotate respectively. The two crushing rollers 38 will crush the large urea particles inside the crushing box 3.

[0035] The hopper 1 is fixedly installed with a fixed sleeve 16 inside. A moving rod 17 is movably connected inside the fixed sleeve 16. The top end of the moving rod 17 is fixedly connected to the bottom end of the screen 13. A spring 18 is fixedly installed at the bottom end of the moving rod 17. The bottom end of the spring 18 is fixedly connected to the inside of the fixed sleeve 16.

[0036] Due to the design of the fixed sleeve 16 and the moving rod 17, the screen 13 can only vibrate up and down. Due to the design of the spring 18, the screen 13 is more stable when vibrating up and down.

[0037] The bottom of the hopper 1 is fixedly installed with a conveying pipe 19, and a connecting pipe 20 is fixedly sleeved inside the conveying pipe 19. The top of the outer surface of the connecting pipe 20 is fixedly sleeved with the bottom of the crushing box 3.

[0038] The urea granules that have been screened by the screen 13 will fall into the inside of the conveying pipe 19, and the crushed urea granules will enter the inside of the conveying pipe 19 through the guide of the connecting pipe 20.

[0039] Among them, a fixed box 21 is fixedly installed at the bottom end of the conveying pipe 19, a short pipe 22 is fixedly installed at the bottom end of the fixed box 21, a three-way pipe 23 is fixedly sleeved at the bottom end of the outer surface of the short pipe 22, a conveying pipe 24 is fixedly sleeved inside the left side of the three-way pipe 23, and the other end of the conveying pipe 24 is connected to the urea dissolving tank.

[0040] When urea particles enter the inside of the conveying pipe 19, they will enter the inside of the fixed box 21 under the influence of gravity, and then enter the inside of the three-way pipe 23 through the fixed box 21 and the short pipe 22.

[0041] The air inlet pipe 25 is fixedly sleeved inside the right side of the three-way pipe 23, and the fan 26 is fixedly sleeved at the top of the outer surface of the air inlet pipe 25.

[0042] When the fan 26 is running, it will blow air into the air intake pipe 25, which will cause the urea particles inside the three-way pipe 23 to move into the delivery pipe 24.

[0043] Among them, the first rotating shaft 28 is movably sleeved inside the left side of the front of the hopper 1, and the second driven wheel 29 is fixedly sleeved at the front end of the first rotating shaft 28.

[0044] When the second driven wheel 29 rotates, the first rotating shaft 28 will rotate around the connection point with the hopper 1 under the drive of the second driven wheel 29.

[0045] Among them, a fixing plate 27 is fixedly installed on the outer surface of the hopper 1, and a second rotating shaft 31 is movably sleeved inside the bottom front end of the fixing plate 27. The outer surface of the second rotating shaft 31 is movably sleeved inside the fixing box 21, and a third driven wheel 32 is fixedly sleeved at the front end of the second rotating shaft 31.

[0046] When the third driven wheel 32 rotates, the second rotating shaft 31 will rotate around the connection point between the third driven wheel 32 and the fixed box 21 and the fixed plate 27.

[0047] The fixing plate 27 is fixedly mounted with a fixing frame 34, and the fixing frame 34 is fixedly mounted with a power motor 35. The other end of the output shaft of the power motor 35 is fixedly sleeved with a second drive wheel 36. The second drive wheel 36 is connected to the second driven wheel 29 and the third driven wheel 32 respectively through the second transmission belt 37.

[0048] When the power motor 35 is running, the second drive wheel 36 will drive the second driven wheel 29 and the third driven wheel 32 to rotate through the second transmission belt 37.

[0049] Among them, a rotating block 30 is fixedly sleeved on the outer surface of the first rotating shaft 28, and the outer surface of the rotating block 30 is movably connected to the outer surfaces of the hopper 1 and the guide block 39 respectively.

[0050] When the first rotating shaft 28 rotates, it will drive the rotating block 30 to rotate. Due to the design of the rotating block 30, the urea granules can be fed in batches and in quantitative quantities.

[0051] Among them, a rotating block 33 is fixedly sleeved on the outer surface of the second rotating shaft 31, and the outer surface of the rotating block 33 is movably sleeved with the inside of the fixed box 21.

[0052] When the second rotating shaft 31 rotates, it will drive the rotating block 33 to rotate. Due to the design of the rotating block 33, the urea granules can be fed in batches and in quantitative quantities.

[0053] Working principle and usage process of this utility model:

[0054] This equipment uses tank trucks to load urea. The dry urea granules in the tank trucks are directly fed into hopper 1 through a pneumatic conveying system. The tank trucks are designed with their own compressed air. The tank truck outlet is connected to the system via a quick connector. The power supply for the vehicle air compressor is designed and installed near the quick connector.

[0055] When the urea granules inside the tanker enter the hopper 1, they will stop at the top of the guide block 39 and move to the left under the guidance of the guide block 39. At this time, the operator starts the power motor 35. The second drive wheel 36 will drive the second driven wheel 29 and the third driven wheel 32 to rotate through the second transmission belt 37. When the second driven wheel 29 rotates, it will drive the rotating block 30 to rotate through the first rotating shaft 28. Due to the design of the rotating block 30, the urea granules at the top of the guide block 39 can be fed in batches and in a quantitative manner.

[0056] Subsequently, the urea granules will fall to the top of the screen 13 under the drive of the rotating block 30. At this time, the operator starts the drive motor 8. The rotating shaft 9 will simultaneously drive the first drive wheel 10 and one of the long shafts 4 to rotate. One of the long shafts 4 will drive the first gear 14 to rotate. Since the first gear 14 is meshed with the second gear 15, the first gear 14 will drive the other long shaft 4 to rotate in the opposite direction through the second gear 15. At the same time, the two long shafts 4 will drive the two crushing rollers 38 to rotate in the opposite direction. At this time, the first drive wheel 10 will drive the first driven wheel 6 to rotate through the first transmission belt 11. The first driven wheel 6 will drive the elliptical block 12 to rotate through the round shaft 5. Due to the design of the elliptical block 12, when the elliptical block 12 rotates, it will drive the screen 13 to move. At this time, the screen 13 will simultaneously drive the four moving rods 17 to move up and down repeatedly along the inside of the four fixed sleeves 16. At this time, the screen 13 will be in a state of up and down vibration. Due to the elastic force of the spring 18, the moving rod 17 will be more stable when it moves up and down. At the same time, the screen 13 will screen the urea particles in the up and down vibration. Urea particles smaller than the mesh diameter of the screen 13 will fall through the mesh of the screen 13 and enter the inside of the conveying pipe 19. Urea particles larger than the mesh diameter of the screen 13 will slide to the right under the guidance of the screen 13. When the screen 13 moves downward under the elastic force of the spring 18, the large urea particles at the top of the screen 13 will enter the inside of the crushing box 3 through the connecting port 2. At this time, the large urea particles will be crushed in the opposite direction of the rotation of the two crushing rollers 38. Then the crushed urea particles will fall into the inside of the connecting pipe 20 and enter the inside of the conveying pipe 19 through the connecting pipe 20, thus realizing the function of screening and crushing large volume urea particles.

[0057] Next, the urea granules inside the conveying pipe 19 will enter the fixed box 21. Since the third driven wheel 32 is rotating under the drive of the second transmission belt 37, the third driven wheel 32 will drive the rotating block 33 to rotate through the second rotating shaft 31. Due to the design of the rotating block 33, the urea granules can be fed in batches and in quantities, thereby preventing the conveying equipment from being blocked due to excessive feeding at the same time. Then, these urea granules will enter the three-way pipe 23 through the fixed box 21 and the short pipe 22. At this time, the operator starts the blower 26, which will blow air into the air inlet pipe 25, thereby driving the urea granules inside the three-way pipe 23 to be conveyed into the conveying pipe 24. Then, the urea granules inside the conveying pipe 24 will move into the urea dissolving tank for dissolution.

[0058] 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.

[0059] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pneumatic conveying urea granule conveying device, characterized in that, Including: A hopper (1) is provided with a tank car at the top of the hopper (1). The tank car is connected to the hopper (1) via a quick connector. A guide block (39) is fixedly installed inside the hopper (1). A connection port (2) is provided on the right side of the hopper (1). A crushing box (3) is fixedly installed on the right side of the hopper (1). The inside of the hopper (1) is connected to the inside of the crushing box (3) via the connection port (2). A long shaft (4) is movably sleeved inside the crushing box (3). There are two long shafts (4). Crushing rollers (38) are fixedly sleeved on the outer surfaces of the two long shafts (4). A round shaft (5) is fixedly sleeved inside the hopper (1). A first driven wheel (6) is fixedly sleeved at the front end of the round shaft (5). A motion mechanism is disposed on the front of the hopper (1); The motion mechanism includes a bracket (7), the rear end of which is fixedly connected to the front of the hopper (1), a drive motor (8) is fixedly installed on the front of the bracket (7), a rotating shaft (9) is fixedly sleeved at the other end of the output shaft of the drive motor (8), the rear end of the rotating shaft (9) is fixedly connected to the front end of the long shaft (4), the front ends of the two long shafts (4) are respectively fixedly sleeved with a first gear (14) and a second gear (15), the first gear (14) and the second gear (15) are meshed, the outer surface of the rotating shaft (9) is fixedly sleeved with a first drive wheel (10), the first drive wheel (10) is connected to the first driven wheel (6) through a first transmission belt (11), the outer surface of the round shaft (5) is fixedly sleeved with an elliptical block (12), the outer surface of the elliptical block (12) is movably connected with a screen (13), and the outer surface of the screen (13) is movably sleeved with the inside of the hopper (1).

2. The pneumatic conveying urea granule conveying device according to claim 1, characterized in that: A fixed sleeve (16) is fixedly installed inside the hopper (1). A moving rod (17) is movably sleeved inside the fixed sleeve (16). The top end of the moving rod (17) is fixedly connected to the bottom end of the screen (13). A spring (18) is fixedly installed at the bottom end of the moving rod (17). The bottom end of the spring (18) is fixedly connected to the inside of the fixed sleeve (16).

3. The pneumatic conveying urea granule conveying device according to claim 1, characterized in that: A conveying pipe (19) is fixedly installed at the bottom of the hopper (1), and a connecting pipe (20) is fixedly sleeved inside the conveying pipe (19). The top of the outer surface of the connecting pipe (20) is fixedly sleeved with the bottom of the crushing box (3).

4. The pneumatic conveying urea granule conveying device according to claim 3, characterized in that: A fixed box (21) is fixedly installed at the bottom end of the conveying pipe (19), a short pipe (22) is fixedly installed at the bottom end of the fixed box (21), a three-way pipe (23) is fixedly sleeved on the bottom end of the outer surface of the short pipe (22), a conveying pipe (24) is fixedly sleeved on the left side of the three-way pipe (23), and the other end of the conveying pipe (24) is connected to a urea dissolving tank.

5. The pneumatic conveying urea granule conveying device according to claim 4, characterized in that: An air inlet pipe (25) is fixedly sleeved inside the right side of the three-way pipe (23), and a fan (26) is fixedly sleeved at the top of the outer surface of the air inlet pipe (25).

6. The pneumatic conveying urea granule conveying device according to claim 1, characterized in that: The hopper (1) has a first rotating shaft (28) movably sleeved inside the left side of the front, and a second driven wheel (29) is fixedly sleeved at the front end of the first rotating shaft (28).

7. The pneumatic conveying urea granule conveying device according to claim 3, characterized in that: A fixing plate (27) is fixedly installed on the outer surface of the hopper (1). A second rotating shaft (31) is movably sleeved inside the bottom front end of the fixing plate (27). The outer surface of the second rotating shaft (31) is movably sleeved inside the fixing box (21). A third driven wheel (32) is fixedly sleeved at the front end of the second rotating shaft (31).

8. The pneumatic conveying urea granule conveying device according to claim 7, characterized in that: A fixing frame (34) is fixedly installed on the front of the fixing plate (27), and a power motor (35) is fixedly installed on the front of the fixing frame (34). A second drive wheel (36) is fixedly sleeved on the other end of the output shaft of the power motor (35). The second drive wheel (36) is connected to the second driven wheel (29) and the third driven wheel (32) respectively through the second transmission belt (37).

9. The pneumatic conveying urea granule conveying device according to claim 6, characterized in that: A rotating block (30) is fixedly sleeved on the outer surface of the first rotating shaft (28), and the outer surface of the rotating block (30) is movably connected to the outer surface of the hopper (1) and the guide block (39).

10. A pneumatic conveying urea granule conveying device according to claim 7, characterized in that: A rotating block (33) is fixedly sleeved on the outer surface of the second rotating shaft (31), and the outer surface of the rotating block (33) is movably sleeved with the inside of the fixed box (21).

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