Boron carbide ultrafine powder granulation device

Abstract

The utility model relates to the technical field of boron carbide superfine powder production, in particular to a boron carbide superfine powder granulation device which comprises a granulation conveying barrel, the fixed output plate is fixedly connected to the circumferential inner wall of the granulation conveying barrel; the first screening hole is formed in one side end of the fixed output plate; the diameter adjusting mechanism comprises a discharging plate rotating groove, a discharging rotating plate, a second screening hole, an adjusting groove, a supporting sliding rod, a driven gear, a driving gear and a rotating wheel, and the discharging plate rotating groove is formed in the circumferential inner wall of the granulation conveying barrel; according to use requirements, relatively small boron carbide superfine powder particles with low sintering temperature and strong compression resistance and high-temperature sintering resistance and high toughness are respectively produced.

Description

Technical Field

[0001] This utility model relates to the field of boron carbide ultrafine powder production technology, specifically to a boron carbide ultrafine powder granulation device. Background Technology

[0002] Existing granulation technologies primarily convert powdered, molten, or solution-based raw materials into granules through methods such as melt mixing, extrusion cutting, or spray drying. Mainstream models include twin-screw extruders (high mixing efficiency, suitable for polymer materials), fluidized bed granulators (low-temperature drying granulation, suitable for heat-sensitive materials), and centrifugal spray granulators (rapid drying of solutions into spherical granules).

[0003] Authorization announcement number "CN219377049U" discloses a twin-screw extrusion granulator for boron carbide ultrafine powder granulation, relating to the field of granulator technology. The granulator includes: a platform with a rectangular block fixedly mounted on its top; a motor A fixedly inserted into one side of the outer wall of the rectangular block, with the output end of motor A penetrating through one side of the outer wall of the rectangular block; a granulator body welded to the top of the platform, with one side of the outer wall of the granulator body fixedly connected to one side of the outer wall of the rectangular block; a discharge port fixedly mounted on one side of the outer wall of the granulator body; and a rotating shaft A movably embedded inside the rectangular block. Due to the inclusion of a drying chamber, the material, after being processed into granules by the granulator, falls precisely into the drying chamber for drying upon discharge. First, motor A is started, driving the rotating shaft A to rotate, thereby driving gears A and B on the rotating shaft A to rotate, which in turn drives screws A and B to rotate. Then, the material is fed into the granulator body.

[0004] The above-mentioned novel method solves the problem that the granules processed by the granulator are in a moist state and are easily deformed. However, the size of the discharge port is fixed during the granulation process, which results in a fixed size of the finished granules. Especially in the production of boron carbide ultrafine powder granules, different particle sizes have different mechanical properties and high temperature resistance. The inability to accurately control the particle size of boron carbide ultrafine powder will lead to unstable performance and limited application. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, this invention provides a boron carbide ultrafine powder granulation device. During the production of boron carbide ultrafine powder particles, different particle sizes result in varying mechanical properties and high-temperature resistance. The inability to precisely control the particle size of boron carbide ultrafine powder leads to unstable performance and limited applications. This invention effectively solves the problem of unstable performance and limited applications caused by particle size in existing technologies.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a boron carbide ultrafine powder granulation device, comprising:

[0008] Granulated feed cylinder;

[0009] A fixed output plate is fixedly connected to the inner circumferential wall of the granulation conveying cylinder;

[0010] The first screening hole is located on one side of the fixed output board;

[0011] A diameter adjustment mechanism includes a discharge plate rotating groove, a discharge turntable, a second screening hole, an adjustment groove, a support slide rod, a driven gear, a driving gear, and a rotating wheel. The discharge plate rotating groove is located on the inner circumference of the granulation conveying cylinder. The discharge turntable is rotatably connected to the discharge plate rotating groove and is in contact with a fixed output plate. The second screening hole is located on one side of the discharge turntable. The adjustment groove is located at the upper end of the granulation conveying cylinder. The support slide rod is fixedly connected to the inner side of the adjustment groove. The driven gear is fixedly connected to the circumferential surface of the discharge turntable and rotates within the discharge plate rotating groove. The driving gear is rotatably connected to the circumferential surface of the support slide rod and meshes with the driven gear. The rotating wheel is fixedly connected to one side of the driving gear.

[0012] Furthermore, an insertion fixing block is fixedly connected to one side of the inner wall of the adjustment groove, and an insertion fixing groove is opened on one side of the drive gear, with the insertion fixing block slidably connected in the insertion fixing groove.

[0013] Furthermore, a push plate is slidably connected to the circumferential surface of the support slide rod, and a fixing spring is fixedly connected to one side of the push plate and the inner wall of one side of the adjustment groove.

[0014] Furthermore, a rotating sleeve is fixedly connected to one side of the fixed output plate, a rotating roller is rotatably connected inside the rotating sleeve, an auger is fixedly connected to the circumferential surface of the rotating roller, a first drive motor is fixedly connected to one side of the granulation conveying cylinder, a scraper is fixedly connected to one side of the auger, the output end of the first drive motor is fixed to one side of the rotating roller, and a feed frame is provided at the upper end of the granulation conveying cylinder.

[0015] Furthermore, a rotating arm is fixedly connected to the lower end of the granulation conveying cylinder, and a support platform is rotatably connected to the lower end of the rotating arm via a rotating shaft. An installation platform is fixedly connected to the lower end of the support platform.

[0016] Furthermore, a sliding table is slidably connected to the upper end of the granulation conveying cylinder, a second drive motor is fixedly connected to the upper end of the sliding table, and a granulation blade is fixedly connected to the output end of the second drive motor.

[0017] Furthermore, a lifting slide rail is fixedly connected to the lower end of the granulation conveying cylinder, and a telescopic cylinder is fixedly connected to the upper end of the mounting platform. A push rod is fixedly connected to the output end of the telescopic cylinder, and the push rod slides within the lifting slide rail.

[0018] Furthermore, a drain port is provided at the lower end of the granulation conveying cylinder, and a feed plate is fixedly connected to one side end of the granulation conveying cylinder.

[0019] Beneficial effects

[0020] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0021] 1. This device can control the diameter of the finished boron carbide ultrafine powder by rotating the discharge plate through the diameter adjustment mechanism. It can produce smaller boron carbide ultrafine powder particles with low sintering temperature and strong compressive strength, as well as high-toughness boron carbide ultrafine powder particles that can withstand high-temperature sintering, according to the application requirements.

[0022] Second: When producing boron carbide ultrafine powder particles, the granulation conveying cylinder rotates counterclockwise to make the discharge port of the fixed output plate face downward for easy discharge. When it is necessary to clean the device, the device can be rotated counterclockwise and the first drive motor can be driven in the opposite direction to drive the auger to rotate and clean the boron carbide ultrafine powder remaining in the granulation conveying cylinder. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural view of the present invention;

[0025] Figure 2 This is an exploded view of the first structure of this utility model;

[0026] Figure 3 This is an exploded view of the second structure of this utility model;

[0027] Figure 4 This is an exploded sectional view of the first structure of this utility model;

[0028] Figure 5 This is an exploded sectional view of the second structure of this utility model;

[0029] Figure 6 This is an exploded sectional view of the third structure of this utility model;

[0030] Figure 7 This utility model Figure 5 Enlarged view of point A in the middle;

[0031] Figure 8 This utility model Figure 6 Enlarged view of point C in the middle;

[0032] Figure 9 This utility model Figure 5 Enlarged view of point B in the middle.

[0033] Reference numerals: 1. Granulating feed cylinder; 2. Fixed output plate; 3. Discharge plate rotating groove; 4. Discharge rotating plate; 5. First screening hole; 6. Second screening hole; 7. Adjusting groove; 8. Support slide rod; 9. Driven gear; 10. Drive gear; 11. Rotating wheel; 12. Push plate; 13. Fixed spring; 14. Insertion fixing block; 15. Insertion fixing groove; 16. Screwdriver; 17. First drive motor; 18. Scraper; 19. Feeding plate; 20. Support platform; 21. Rotating arm; 22. Mounting platform; 23. Sliding platform; 24. Second drive motor; 25. Granulating blade; 26. Lifting slide rail; 27. Telescopic cylinder; 28. Push rod; 29. ​​Drainage port; 30. Feed frame; 31. Rotating sleeve; 32. Rotating roller. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0035] The present invention will be further described below with reference to the embodiments.

[0036] Please see Figures 1-9 The present invention provides the following technical solution:

[0037] A boron carbide ultrafine powder granulation device, comprising:

[0038] Granulation feed cylinder 1;

[0039] Fixed output plate 2 is fixedly connected to the inner circumferential wall of granulation conveying cylinder 1;

[0040] The first screening hole 5 is opened on one side of the fixed output plate 2;

[0041] The diameter adjustment mechanism includes a discharge plate rotating groove 3, a discharge rotating plate 4, a second screening hole 6, an adjustment groove 7, a support slide rod 8, a driven gear 9, a driving gear 10, and a rotating wheel 11. The discharge plate rotating groove 3 is opened on the inner circumference of the granulation conveying cylinder 1. The discharge rotating plate 4 is rotatably connected to the discharge plate rotating groove 3 and is in contact with the fixed output plate 2. The second screening hole 6 is opened on one side of the discharge rotating plate 4. The adjustment groove 7 is opened on the upper end of the granulation conveying cylinder 1. The support slide rod 8 is fixedly connected to the inner side of the adjustment groove 7. The driven gear 9 is fixedly connected to the circumferential surface of the discharge rotating plate 4 and rotates within the discharge plate rotating groove 3. The driving gear 10 is rotatably connected to the circumferential surface of the support slide rod 8 and meshes with the driven gear 9. The rotating wheel 11 is fixedly connected to one side of the driving gear 10.

[0042] In a specific embodiment of this utility model, the granulating conveying cylinder 1 serves as the conveying barrel for the boron carbide ultrafine powder mixture. The discharge rotating plate 4 slides within the discharge plate rotating groove 3 opened on the inner wall of the granulating conveying cylinder 1. The upper end of the discharge plate rotating groove 3 is connected to the adjusting groove 7. The fixed output plate 2 and the discharge rotating plate 4 are fixed at the discharge port of the granulating conveying cylinder 1 to adjust the particle diameter of the boron carbide ultrafine powder extruded from the granulating conveying cylinder 1. The fixed output plate 2 is fixed and cannot rotate, and a first screening hole 5 is opened on one side. The two sides of the first screening hole 5 are circles with different diameters. The diameter of the second screening hole 6 opened on one side of the discharge rotating plate 4 is the same as the largest circle diameter on one side of the first screening hole 5, and each first screening hole 5 is in contact with a second screening hole 6. The size of the final discharge port is controlled by the rotation of the discharge rotating plate 4. When the second screening hole 6 rotates to be in contact with the larger circle side of the first screening hole 5... When the final diameter of the boron carbide ultrafine powder particles is relatively large, and when the second screening hole 6 rotates to the side with the smaller diameter of the first screening hole 5, the diameter of the finished boron carbide ultrafine powder particles is smaller. The upper end of the discharge plate 4 is provided with a driven gear 9, which slides in the discharge plate rotation groove 3 and is connected to the adjustment groove 7. The support slide rod 8 is used to support the drive gear 10. The drive gear 10 meshes with the driven gear 9. The rotating wheel 11 is fixed on one side of the drive gear 10 and rotates with the drive gear 10 on the surface of the support slide rod 8. When producing boron carbide ultrafine powder particles, the driven gear 9 meshing with the drive gear 10 can be slightly rotated by rotating the rotating wheel 11, thereby adjusting the diameter of the discharge port formed by the first screening hole 5 and the second screening hole 6, and thus adjusting the final diameter of the boron carbide ultrafine powder particles. This allows the device to produce boron carbide ultrafine powder particles of different sizes.

[0043] Please refer to the details. Figures 1-9 An insertion fixing block 14 is fixedly connected to one side of the inner wall of the adjustment groove 7, and an insertion fixing groove 15 is opened on one side of the drive gear 10, and the insertion fixing block 14 is slidably connected in the insertion fixing groove 15.

[0044] In this embodiment: the insertion fixing block 14 and the insertion fixing groove 15 are used to limit the rotation of the drive gear 10. There are 24 insertion fixing grooves 15. The drive gear 10 re-matches with the insertion fixing block 14 every 15 degrees of rotation. After the drive gear 10 rotates to control the size of the discharge port formed by the first screening hole 5 and the second screening hole 6, the sliding drive gear 10 inserts the insertion fixing block 14 into the insertion fixing groove 15 to limit the drive gear 10, so that the device will not regenerate the change in the size of the discharge port during the production of boron carbide ultrafine powder particles.

[0045] Please refer to the details. Figures 1-9 A push plate 12 is slidably connected to the circumferential surface of the support slide rod 8, and a fixing spring 13 is fixedly connected to one side end of the push plate 12 and one side inner wall of the adjustment groove 7.

[0046] In this embodiment: the fixed spring 13 is fixed to one side of the push plate 12 and is always kept in a compressed state. The rebound force of the fixed spring 13 pushes to ensure that the insertion fixing block 14 can be inserted into the insertion fixing groove 15. When it is necessary to adjust the size of the discharge particles, the operator holds the rotating wheel 11 and slides the drive gear 10 backward to pull out the insertion fixing block 14 and insert it into the fixing groove 15, thereby releasing the rotation restriction on the drive gear 10. Then, the rotating wheel 11 is rotated to control the size of the discharge port.

[0047] Please refer to the details. Figures 1-9 A rotating sleeve 31 is fixedly connected to one side of the fixed output plate 2. A rotating roller 32 is rotatably connected inside the rotating sleeve 31. An auger 16 is fixedly connected to the circumferential surface of the rotating roller 32. A first drive motor 17 is fixedly connected to one side of the granulation conveying cylinder 1. A scraper 18 is fixedly connected to one side of the auger 16. The output end of the first drive motor 17 is fixed to one side of the rotating roller 32. A feed frame 30 is provided at the upper end of the granulation conveying cylinder 1.

[0048] In this embodiment: the rotating sleeve 31 is fixed to one side of the fixed output plate 2 to support the rotating roller 32. The first drive motor 17 is fixed to the rear side of the granulation conveying cylinder 1. One side of the rotating roller 32 rotates inside the rotating sleeve 31, and the other side is connected to the output end of the first drive motor 17. When producing boron carbide ultrafine powder particles, the auger 16 rotates to push the boron carbide ultrafine powder mixed raw material in the granulation conveying cylinder 1 to one side of the fixed output plate 2 and extrudes the raw material from the discharge port, and then cuts it into granules. The feed frame 30 is opened at the upper end of the granulation conveying cylinder 1 for feeding the boron carbide ultrafine powder raw material. The scraper plate 18 is a cleaning plate protruding from both sides of the auger 16. When the auger 16 rotates, the scraper plate 18 scrapes off the raw material attached to the inner wall of the granulation conveying cylinder 1 to avoid the accumulation of raw material on the inner wall of the granulation conveying cylinder 1.

[0049] Please refer to the details. Figures 1-9 A rotating arm 21 is fixedly connected to the lower end of the granulation conveying cylinder 1. A support platform 20 is rotatably connected to the lower end of the rotating arm 21 via a rotating shaft. An installation platform 22 is fixedly connected to the lower end of the support platform 20.

[0050] In this embodiment: the mounting platform 22 is the device mounting base, the support platform 20 is located at the upper end of the mounting platform 22 to support the granulation conveying cylinder 1, and the rotating arm 21 is located at the lower end of the granulation conveying cylinder 1 and is rotatably connected to one side of the support platform 20 through a rotating shaft, so that the device can rotate around the rotating shaft connected to the feed plate 19 and the support platform 20. When producing boron carbide ultrafine powder particles, the granulation conveying cylinder 1 rotates counterclockwise so that the discharge port of the fixed output plate 2 faces downward to facilitate discharge. When the device needs to be cleaned, the device can be rotated counterclockwise and the first drive motor 17 can be driven in the opposite direction to rotate the auger 16 to clean the boron carbide ultrafine powder remaining in the granulation conveying cylinder 1.

[0051] Please refer to the details. Figures 1-9 The upper end of the granulation conveying cylinder 1 is slidably connected to a sliding table 23, the upper end of the sliding table 23 is fixedly connected to a second drive motor 24, and the output end of the second drive motor 24 is fixedly connected to a granulation blade 25.

[0052] In this embodiment: the upper end of the mounting platform 22 is provided with a slide rail, and the sliding platform 23 slides on the upper end of the mounting platform 22 via the slide rail. The sliding platform 23 is used to fix the second drive motor 24. The granulating blade 25 fixed at the output end of the second drive motor 24 slides to the discharge port of the discharge turntable 4 through the slide rail control, and the angle is controlled by the telescopic cylinder 27 to make the granulating blade 25 fit against one side of the discharge turntable 4. The second drive motor 24 drives the granulating blade 25 to rotate to cut the boron carbide ultrafine powder raw material extruded from the discharge port into particles.

[0053] Please refer to the details. Figures 1-9 The lower end of the granulation conveying cylinder 1 is fixedly connected to a lifting slide rail 26, and the upper end of the mounting platform 22 is fixedly connected to a telescopic cylinder 27. The output end of the telescopic cylinder 27 is fixedly connected to a push rod 28, which slides within the lifting slide rail 26.

[0054] In this embodiment: the lifting slide rail 26 is a hollow slide rail, the telescopic cylinder 27 is located at the upper end of the mounting platform 22, and the granulation conveying cylinder 1 is rotated and the height of the left and right sides is changed by telescopic extension end. The push rod 28 is fixed to the extension end of the telescopic cylinder 27, and avoids motion interference by sliding open inside the lifting slide rail 26.

[0055] Please refer to the details. Figures 1-9The lower end of the granulation conveying cylinder 1 is provided with a drain port 29, and a feed plate 19 is fixedly connected to one side end of the granulation conveying cylinder 1.

[0056] In this embodiment: the feed plate 19 is located on one side of the granulation conveying cylinder 1 to guide the particles to be cut. A collection device can be placed at the lower end of the feed plate 19 to collect the finished boron carbide ultrafine powder particles. The drain port 29 is located at the rear end of the granulation conveying cylinder 1. When the granulation conveying cylinder 1 rotates counterclockwise, the boron carbide ultrafine powder raw material entering from the feed frame 30 will not flow out from the drain port 29. When the device needs to be cleaned, the drain port 29 rotates to the lower position of the device when the device rotates clockwise. At this time, the first drive motor 17 drives the auger 16 to rotate in the opposite direction and cooperates with the scraper 18 to scrape off the residual raw material on the inner wall of the granulation conveying cylinder 1, so that the residual raw material in the granulation conveying cylinder 1 is discharged from the drain port 29.

[0057] Working principle: The granulating conveying cylinder 1 serves as the conveying barrel for the mixed raw material of boron carbide ultrafine powder. The discharge rotating plate 4 slides within the discharge plate rotation groove 3 opened on the inner wall of the granulating conveying cylinder 1. The upper end of the discharge plate rotation groove 3 is connected to the adjusting groove 7. The fixed output plate 2 and the discharge rotating plate 4 are fixed at the discharge port of the granulating conveying cylinder 1 to adjust the particle diameter of the boron carbide ultrafine powder extruded from the granulating conveying cylinder 1. The fixed output plate 2 is fixed and cannot rotate, and a first screening hole 5 is opened on one side. The two sides of the first screening hole 5 are circles with different diameters. The diameter of the second screening hole 6 opened on one side of the discharge rotating plate 4 is the same as the largest circle diameter on one side of the first screening hole 5, and each first screening hole 5 is in contact with a second screening hole 6. The size of the final discharge port is controlled by the rotation of the discharge rotating plate 4. When the second screening hole 6 rotates to be in contact with the larger circle side of the first screening hole 5, the boron carbide... The final diameter of the boron carbide ultrafine powder particles is relatively large. When the second screening hole 6 rotates to the side with the smaller diameter of the first screening hole 5, the diameter of the finished boron carbide ultrafine powder particles is smaller. The upper end of the discharge plate 4 is provided with a driven gear 9. The driven gear 9 slides in the discharge plate rotation groove 3 and is connected to the adjustment groove 7. The support slide rod 8 is used to support the drive gear 10. The drive gear 10 meshes with the driven gear 9. The rotating wheel 11 is fixed on one side of the drive gear 10 and rotates with the drive gear 10 on the surface of the support slide rod 8. When producing boron carbide ultrafine powder particles, the driven gear 9 meshing with the drive gear 10 can be slightly rotated by rotating the rotating wheel 11, thereby adjusting the diameter of the discharge port formed by the first screening hole 5 and the second screening hole 6, and thus adjusting the final diameter of the boron carbide ultrafine powder particles. This allows the device to produce boron carbide ultrafine powder particles of different sizes.

[0058] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A boron carbide ultrafine powder granulation device, comprising, characterized in that: Granulated feed cylinder (1); A fixed output plate (2) is fixedly connected to the inner circumferential wall of the granulation conveying cylinder (1); The first screening hole (5) is located on one side of the fixed output plate (2); The diameter adjustment mechanism includes a discharge plate rotating groove (3), a discharge rotating plate (4), a second screening hole (6), an adjustment groove (7), a support slide rod (8), a driven gear (9), a driving gear (10), and a rotating wheel (11). The discharge plate rotating groove (3) is opened on the inner circumference of the granulation conveying cylinder (1). The discharge rotating plate (4) is rotatably connected to the discharge plate rotating groove (3). The discharge rotating plate (4) is in contact with the fixed output plate (2). The second screening hole (6) is opened. Located on one side of the discharge turntable (4), the adjustment groove (7) is opened at the upper end of the granulation conveying cylinder (1), the support slide rod (8) is fixedly connected to the inner wall of one side of the adjustment groove (7), the driven gear (9) is fixedly connected to the circumferential surface of the discharge turntable (4) and rotates in the discharge plate rotation groove (3), the driving gear (10) is rotatably connected to the circumferential surface of the support slide rod (8) and meshes with the driven gear (9), and the rotating wheel (11) is fixedly connected to one side of the driving gear (10).

2. The boron carbide ultrafine powder granulation device according to claim 1, characterized in that, An insertion fixing block (14) is fixedly connected to one side of the inner wall of the adjustment groove (7), and an insertion fixing groove (15) is opened on one side of the drive gear (10). The insertion fixing block (14) is slidably connected in the insertion fixing groove (15).

3. The boron carbide ultrafine powder granulation device according to claim 1, characterized in that, The circumferential surface of the support slide bar (8) is slidably connected to a push plate (12), and a fixing spring (13) is fixedly connected to one side end of the push plate (12) and one side inner wall of the adjustment groove (7).

4. The boron carbide ultrafine powder granulation device according to claim 1, characterized in that, A rotating sleeve (31) is fixedly connected to one side of the fixed output plate (2). A rotating roller (32) is rotatably connected inside the rotating sleeve (31). An auger (16) is fixedly connected to the circumferential surface of the rotating roller (32). A first drive motor (17) is fixedly connected to one side of the granulation conveying cylinder (1). A scraper (18) is fixedly connected to one side of the auger (16). The output end of the first drive motor (17) is fixed to one side of the rotating roller (32). A feed frame (30) is provided at the upper end of the granulation conveying cylinder (1).

5. The boron carbide ultrafine powder granulation device according to claim 1, characterized in that, The lower end of the granulation conveying cylinder (1) is fixedly connected to a rotating arm (21), and the lower end of the rotating arm (21) is rotatably connected to a support platform (20) via a rotating shaft. The lower end of the support platform (20) is fixedly connected to an installation platform (22).

6. The boron carbide ultrafine powder granulation device according to claim 1, characterized in that, The upper end of the granulation feeding cylinder (1) is slidably connected to a sliding table (23), the upper end of the sliding table (23) is fixedly connected to a second drive motor (24), and the output end of the second drive motor (24) is fixedly connected to a granulation blade (25).

7. The boron carbide ultrafine powder granulation device according to claim 5, characterized in that, The lower end of the granulation conveying cylinder (1) is fixedly connected to a lifting slide rail (26), and the upper end of the mounting platform (22) is fixedly connected to a telescopic cylinder (27). The output end of the telescopic cylinder (27) is fixedly connected to a push rod (28), and the push rod (28) slides within the lifting slide rail (26).

8. The boron carbide ultrafine powder granulation device according to claim 1, characterized in that, The lower end of the granulation conveying cylinder (1) is provided with a drain port (29), and a feed plate (19) is fixedly connected to one side end of the granulation conveying cylinder (1).

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