Granulation equipment and granulation process for rubber vulcanization accelerator

Abstract

The invention belongs to the technical field of granulation equipment for rubber vulcanization accelerators, and discloses granulation equipment and a granulation process for rubber vulcanization accelerators, and the granulation process comprises the following steps: S1, preparing and mixing raw materials: preparing the rubber vulcanization accelerators and auxiliary agents, such as plasticizers, filling agents and auxiliaries, and ensuring that the raw materials are mixed according to a proportion, a physical mixing or chemical mixing method is selected as required to ensure uniform combination of the raw materials. A first motor drives meshing transmission of a worm and a worm wheel, then a rotating rod and a disc are driven to do circular motion, a cylinder eccentrically installed on the disc drives a grooved block to do reciprocating motion in the vertical direction through sliding connection, the motion drives a mounting frame, an annular box and a shaking box to shake vertically, and meanwhile the mounting frame, the annular box and the shaking box shake vertically. And the second motor drives the round rod and the scattering device to rotate, and under the combined action of vibration of the shaking box, the coagulated accelerant particles are effectively shaken open.

Description

Technical Field

[0001] The invention belongs to the technical field of granulation equipment for rubber vulcanization accelerator, in particular to granulation equipment and a granulation process for rubber vulcanization accelerator. Background Art

[0002] Rubber vulcanization accelerators play a vital role in the rubber industry. As a key chemical additive, they can significantly accelerate the vulcanization process of rubber, thereby greatly improving the performance of rubber products, including hardness, strength, wear resistance and aging resistance.

[0003] In the granulation process of rubber vulcanization accelerator, a crucial link is to shape and extrude the material under high temperature and high pressure through an extruder. In this step, the material is subjected to strong squeezing and shearing action of the screw and is forced to pass through the die hole of the extruder to form a continuous ribbon.

[0004] Since the material has high viscosity at high temperature, the surface of these strips formed by the extruder die hole still maintains high viscosity after leaving the die. When these strips are cut into particles, they are easy to stick to each other due to the surface viscosity. This adhesion phenomenon will not only cause the shape of the particles to become irregular, but also uneven in size. In some cases, multiple particles will even stick together tightly to form larger agglomerates. The irregular shape of the particles and the uneven size have a direct impact on the performance of the rubber vulcanization accelerator. The irregular particle shape will reduce its dispersibility in the rubber matrix, resulting in uneven reaction during the vulcanization process, thereby affecting the performance of the rubber product, and the uneven particle size will lead to fluctuations in the vulcanization rate, making it difficult to control the vulcanization degree of the rubber product, which in turn affects the final quality of the product. Therefore, it needs to be improved and optimized. Summary of the invention

[0005] In order to solve the problems of irregular particle shape, uneven size and agglomerate formation caused by high temperature viscosity of materials during the granulation process of rubber vulcanization accelerator raised in the above background technology, which directly affects the performance of rubber products and the controllability of the vulcanization process, the present invention provides a granulation equipment and granulation process for rubber vulcanization accelerator.

[0006] To achieve the above object, the present invention provides the following technical solution: a granulation process for a rubber vulcanization accelerator, comprising the following steps: S1. Raw material preparation and mixing: prepare rubber vulcanization accelerators and auxiliary agents, such as plasticizers, fillers, and additives, and ensure that these raw materials are mixed by proportioning. Choose physical mixing or chemical mixing methods according to needs to ensure that the raw materials are evenly combined; S2. Extrusion granulation and cutting, shaking and filtering: The mixed materials are sent to the granulator to form granular products. The extruded rubber strips are immediately cut by the cutting machine to form rubber particles. In order to prevent the rubber particles from sticking together, they need to be put into a vibration device for shaking and filtering to ensure product quality. S3. Packaging and storage preparation: The rubber particles that have been cut, shaken and filtered are collected through conveyor belts or other means, and the collected rubber particles are packaged to prepare for subsequent storage and transportation.

[0007] A granulation equipment for rubber vulcanization accelerator, wherein a mounting frame is arranged inside the mounting box, the top of the mounting frame extends out of the mounting box and is slidably connected to the mounting box, an annular box is fixedly installed on the top of the mounting frame, a plurality of grooved fixing blocks are fixedly installed on the bottom inner wall of the annular box, a shaking box is arranged at the center of the inner wall of the annular box, a plurality of T-shaped columns are fixedly installed on the outer wall of the shaking box, a plurality of the T-shaped columns respectively penetrate adjacent grooved fixing blocks and are slidably connected to the groove walls of adjacent grooved fixing blocks, and the shaking box and the grooved fixing block are elastically connected on the side close to each other through a plurality of springs.

[0008] Preferably, a screening box is fixedly installed on the top of the installation box, a screening plate is fixedly installed inside the screening box, an annular column is fixedly installed on the bottom of the screening plate and the side close to the screening box, a second motor is fixedly installed on the bottom inner wall of the annular column, a round rod is fixedly installed on the output shaft of the second motor, the top of the round rod passes through the screening plate and the shaking box in sequence, the round rod is rotatably connected to the screening plate and the shaking box respectively, and a scatterer and a rectangular plate are fixedly sleeved on the outer wall of the round rod respectively, and the scatterer is located above the rectangular plate.

[0009] Preferably, a motor 1 is fixedly mounted on the inner wall of the bottom of the mounting box, and a worm gear is fixedly mounted on the output shaft of the motor 1.

[0010] Preferably, a fixed block is fixedly installed on the bottom inner wall of the installation box, a rotating rod is rotatably installed on the outer wall of the fixed block, the rotating rod passes through the fixed block, a turbine and a disc are fixedly sleeved on the outer wall of the rotating rod, and the turbine is meshed with the worm gear.

[0011] Preferably, a grooved block is fixedly mounted on the bottom of the mounting frame, a cylinder is fixedly mounted on the outer wall of the disc deviating from the center, and the cylinder penetrates the grooved block and is slidably connected to the grooved block.

[0012] Preferably, two limiting rings are fixedly sleeved on the outer wall of the cylinder, and the two limiting rings are respectively located on two sides of the grooved block.

[0013] Preferably, the disperser is entirely located inside the shaking box, and there is a height difference between the bottom of the disperser and the bottom inner wall of the shaking box.

[0014] Preferably, the rectangular plate is located above the screening plate, and a plurality of hollow columns are fixedly installed at the bottom of the rectangular plate. The plurality of hollow columns are designed to be distributed at equal distances, and balls are respectively arranged under the plurality of hollow columns. The plurality of balls are elastically connected to the adjacent hollow columns through spring 2.

[0015] Preferably, a plurality of circular grooves are provided on the outer wall of the screening plate, and the plurality of circular grooves are equidistantly distributed around the circumference.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention drives the meshing transmission of the worm gear and the turbine through motor 1, thereby driving the rotating rod and the disc to perform circular motion. The eccentrically mounted cylinder on the disc drives the groove block to perform reciprocating motion in the vertical direction through a sliding connection. This movement drives the vertical shaking of the mounting frame, the annular box and the shaking box. At the same time, motor 2 drives the round rod and the shaker to rotate, which works together with the vibration of the shaking box to effectively shake off the condensed promoter particles. This design not only improves the uniformity and dispersion of granulation, but also ensures the efficient flow of materials during the screening process, avoiding the accumulation and congestion of particles.

[0017] The present invention can more effectively capture and screen promoter particles that meet the design requirements by designing circular grooves that are equidistantly distributed on the screening plate, thereby reducing the possibility of missed screening and misscreening. At the same time, the rotation of the rectangular plate and the hollow column driven by the rotation of the round rod, and the balls elastically connected by the spring roll above the circular grooves, effectively poking out or squeezing out promoter particles that may be stuck in the circular grooves, thereby preventing the problem of clogging of the circular grooves. This design not only ensures the continuity and stability of the screening process, but also extends the service life of the screening plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the partial cross-sectional structure of the front side of the present invention; Figure 3 It is a schematic diagram of the turbine structure of the present invention; Figure 4 This is a schematic diagram of the mounting structure of the present invention; Figure 5 It is a schematic diagram of the structure of the scatterer of the present invention; Figure 6 It is a schematic diagram of the structure of the sloshing box of the present invention; Figure 7 This is a schematic diagram of the structure of the T-shaped column and the fixing block with grooves of the present invention; Figure 8 It is a schematic diagram of the circular groove structure of the present invention; Fig. 9 This is a schematic diagram of the explosion structure of the annular column of the present invention; Fig.10 It is a schematic diagram of the exploded structure of the hollow column, the ball and the spring 2 of the present invention.

[0019] In the figure: 1. installation box; 101. screening box; 102. annular column; 2. motor one; 3. worm rod; 4. fixing block; 5. rotating rod; 6. turbine; 7. disc; 8. cylinder; 801. limiting ring; 9. mounting frame; 10. grooved block; 11. annular box; 12. shaking box; 1201. T-column; 13. grooved fixing block; 14. spring one; 15. screening plate; 1501. circular groove; 16. motor two; 17. round rod; 18. scatterer; 19. rectangular plate; 20. hollow column; 21. ball bearing; 22. spring two. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figures 1 to 10 As shown, the present invention provides a granulation process for a rubber vulcanization accelerator, comprising the following steps: S1. Raw material preparation and mixing: prepare rubber vulcanization accelerators and auxiliary agents, such as plasticizers, fillers, and additives, and ensure that these raw materials are mixed by proportioning. Choose physical mixing or chemical mixing methods according to needs to ensure that the raw materials are evenly combined; S2. Extrusion granulation and cutting, shaking and filtering: The mixed materials are sent to the granulator to form granular products. The extruded rubber strips are immediately cut by the cutting machine to form rubber particles. In order to prevent the rubber particles from sticking together, they need to be put into a vibration device for shaking and filtering to ensure product quality. S3. Packaging and storage preparation: The rubber particles that have been cut, shaken and filtered are collected through a conveyor belt or other means, and the collected rubber particles are packaged to prepare for subsequent storage and transportation.

[0022] A granulation equipment for rubber vulcanization accelerator, the vibration device in S2 includes an installation box 1, a mounting frame 9 is arranged inside the installation box 1, the top of the mounting frame 9 extends out of the installation box 1 and is slidably connected to the installation box 1, an annular box 11 is fixedly installed on the top of the mounting frame 9, a plurality of grooved fixing blocks 13 are fixedly installed on the bottom inner wall of the annular box 11, a shaking box 12 is arranged at the center of the inner wall of the annular box 11, a plurality of T-shaped columns 1201 are fixedly installed on the outer wall of the shaking box 12, the plurality of T-shaped columns 1201 respectively penetrate the adjacent grooved fixing blocks 13 and are slidably connected to the groove walls of the adjacent grooved fixing blocks 13, and the shaking box 12 and the grooved fixing blocks 13 are elastically connected on the side close to each other through a plurality of springs 14.

[0023] The shaking box 12 is driven to vibrate by the vibration of the mounting frame 9. A number of T-shaped columns 1201 are fixedly installed on the outer wall of the shaking box 12. These T-shaped columns 1201 respectively penetrate the groove walls of the adjacent grooved fixing blocks 13 and are slidably connected with them. This design enables the shaking box 12 to perform smooth shaking motion under the support and guidance of the grooved fixing blocks 13. The stability and shaking effect of the shaking box 12 are further ensured by arranging a spring 14. On the side where the shaking box 12 and the grooved fixing block 13 are close to each other, an elastic connection is achieved by a number of springs 14. Through their elastic force, the shaking box 12 can produce a more uniform and stable shaking effect when subjected to external force.

[0024] like Figures 1 to 4 As shown, a screening box 101 is fixedly installed on the top of the installation box 1, a screening plate 15 is fixedly installed inside the screening box 101, an annular column 102 is fixedly installed on the bottom of the screening plate 15 and the side close to the screening box 101, a motor 16 is fixedly installed on the bottom inner wall of the annular column 102, a round rod 17 is fixedly installed on the output shaft of the motor 16, the top of the round rod 17 passes through the screening plate 15 and the shaking box 12 in sequence, the round rod 17 is rotatably connected to the screening plate 15 and the shaking box 12 respectively, and a scatterer 18 and a rectangular plate 19 are fixedly sleeved on the outer wall of the round rod 17, and the scatterer 18 is located above the rectangular plate 19.

[0025] The screening effect is optimized by providing a scrambler 18, which is located above the rectangular plate 19. This design enables the scrambler 18 to first effectively scramble and mix the particles on the screening plate 15 when the round rod 17 rotates, thereby ensuring the uniformity of the particles. Subsequently, the rotation of the rectangular plate 19 further promotes the dispersion and flow of the particles, thereby improving the screening efficiency.

[0026] like Figure 3 As shown, a motor 2 is fixedly mounted on the inner wall of the bottom of the mounting box 1, and a worm 3 is fixedly mounted on the output shaft of the motor 2.

[0027] The motor 2 and the worm gear 3 fixedly mounted on its output shaft together constitute a part of the power device of the device, ensuring the stable transmission and efficient use of power, and providing strong support for the precise control and optimized operation of subsequent transmission components.

[0028] like Figure 3 As shown, a fixed block 4 is fixedly installed on the inner wall of the bottom of the installation box 1, and a rotating rod 5 is rotatably installed on the outer wall of the fixed block 4. The rotating rod 5 penetrates the fixed block 4, and a turbine 6 and a disc 7 are fixedly sleeved on the outer wall of the rotating rod 5. The turbine 6 is meshed with the worm 3.

[0029] By setting the turbine 6 and the disc 7, a precise meshing connection is achieved between the turbine 6 and the worm rod 3, so that the rotational power of the worm rod 3 is transmitted. Moreover, through the deceleration and torque-increasing effect of the turbine 6, the rotating rod 5 can obtain a more stable and appropriate rotational speed and torque, providing power support for the vibration of the device.

[0030] like Figure 3 to Figure 4 As shown, a grooved block 10 is fixedly mounted on the bottom of the mounting frame 9 , and a cylinder 8 is fixedly mounted on the outer wall of the disc 7 deviating from the center of the circle. The cylinder 8 penetrates the grooved block 10 and is slidably connected to the grooved block 10 .

[0031] By designing the cylinder 8 to be offset from the center of the circle, when the disk 7 rotates, the cylinder 8 on it deviates from the center of the circle, so the relative position of the cylinder 8 with respect to the slot of the grooved block 10 will be continuously changed during the rotation process. The change of the relative position is converted into the reciprocating motion of the grooved block 10 in the vertical direction through the sliding connection between the cylinder 8 and the grooved block 10, thereby realizing the conversion of the rotational motion of the disk 7 into the vertical reciprocating motion of the grooved block 10, and by adjusting the distance that the cylinder 8 deviates from the center of the circle and the rotation speed of the disk 7, the reciprocating motion amplitude and frequency of the grooved block 10 can be accurately controlled.

[0032] like Figure 4 As shown, two limiting rings 801 are fixedly sleeved on the outer wall of the cylinder 8 , and the two limiting rings 801 are respectively located on both sides of the grooved block 10 .

[0033] With two limit rings 801 respectively located on both sides of the grooved block 10 , this design ensures that the grooved block 10 will not deviate from the track when sliding on the cylinder 8 , thereby ensuring the stability and reliability of the entire transmission system.

[0034] like Figures 2 to 8 As shown, the scatterer 18 is entirely located inside the shaking box 12 , and there is a height difference between the bottom of the scatterer 18 and the bottom inner wall of the shaking box 12 .

[0035] The height difference design ensures that the disperser 18 can fully contact the promoter particles in the shaking box 12 during rotation, and will not be unable to exert the disperser effect due to the bottom being close to the box wall. When the motor drives the disperser 18 to rotate, its rotating blades can easily penetrate the particle layer and use the centrifugal force generated by the rotation to effectively disperse the condensed particles, thereby improving the uniformity and dispersion of granulation.

[0036] like Figures 9 and 10 As shown, the rectangular plate 19 is located above the screening plate 15, and a plurality of hollow columns 20 are fixedly installed at the bottom of the rectangular plate 19. The plurality of hollow columns 20 are designed to be distributed at equal distances, and balls 21 are respectively arranged under the plurality of hollow columns 20. The plurality of balls 21 are elastically connected to the adjacent hollow columns 20 through springs 22.

[0037] By providing the ball 21, when the circular groove 1501 on the screening plate 15 is at risk of being blocked due to long-term use or particle accumulation, the ball 21 can roll over the circular groove 1501 and use its own hardness and elasticity to effectively poke out or squeeze out the particles stuck in the circular groove, thereby preventing the circular groove from being blocked and ensuring the continuity and stability of the screening process.

[0038] like Figure 8 As shown, a plurality of circular grooves 1501 are provided on the outer wall of the screening plate 15, and the plurality of circular grooves 1501 are designed to be distributed around the circumference at equal distances.

[0039] The circular grooves 1501 distributed at equal distances around the circumference can ensure uniform distribution of the accelerator particles during the screening process, avoiding the accumulation and congestion of particles on the screening plate, thereby improving the screening efficiency and screening quality, and also making the screening plate 15 have a stronger screening ability. Since the circular grooves 1501 are numerous and evenly distributed, they can more effectively capture and screen the accelerator particles that meet the design requirements, reducing the possibility of missed screening and misscreening.

[0040] The working principle and use process of the present invention: First, the rubber vulcanization accelerator particles are put into the shaking box 12, and then the motor 2 is started. The output shaft of the motor 2 begins to rotate, driving the rotation of the worm 3. The close engagement between the worm 3 and the turbine 6 ensures the efficient transmission of power, thereby driving the turbine 6 and the rotating rod 5 connected thereto to rotate together. The rotating action of the rotating rod 5 drives the disc 7 at its upper end to perform circular motion. When the disc 7 performs circular motion, the eccentrically installed cylinder 8 drives the grooved block 10 to perform reciprocating motion in the vertical direction through a sliding connection. This movement of the grooved block 10 drives the mounting frame 9 and the annular box 11 connected thereto to shake in the vertical direction. While the annular box 11 is shaking in the vertical direction, the elastic action of a plurality of springs 14 arranged between the ball 21 and the annular box 11 causes the shaking box 12 to also produce a vibration effect. In order to ensure that the vibration of the shaking box 12 is within a controllable range, The T-shaped column 1201 slides in the groove of the grooved fixing block 13, which plays an effective limiting role. Then the motor 2 16 is started. The rotation of the output shaft of the motor 2 16 drives the round rod 17 and the scatterer 18 installed on the round rod 17 to rotate together. The rotational force of the scatterer 18 and the uninterrupted vibration of the shaking box 12 work together to effectively shake out the condensed promoter particles. These shaken particles then fall into the screening box 101 below through the grid at the bottom of the shaking box 12. In the screening box 101, the promoter particles that meet the design requirements are screened out through the carefully designed circular groove 1501 on the screening plate 15. At the same time, the rotation of the round rod 17 also drives the rotation of the rectangular plate 19 and the hollow column 20. Through the elastic connection of the spring 22, when the ball 21 passes through the circular groove 1501, it can cleverly poke out the promoter particles that may be stuck in the circular groove 1501, thereby effectively preventing the blockage of the circular groove 1501.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A granulation process for a rubber vulcanization accelerator, characterized in that: The steps include: S1. Raw material preparation and mixing: prepare rubber vulcanization accelerators and auxiliary agents, such as plasticizers, fillers, and additives, and ensure that these raw materials are mixed by proportioning. Choose physical mixing or chemical mixing methods according to needs to ensure that the raw materials are evenly combined; S2. Extrusion granulation and cutting, shaking and filtering: The mixed materials are sent to the granulator to form granular products. The extruded rubber strips are immediately cut by the cutting machine to form rubber particles. In order to prevent the rubber particles from sticking together, they need to be put into a vibration device for shaking and filtering to ensure product quality. S3. Packaging and storage preparation: The rubber particles that have been cut, shaken and filtered are collected through a conveyor belt or other means, and the collected rubber particles are packaged to prepare for subsequent storage and transportation.

2. A granulation device for rubber vulcanization accelerator, using the granulation process for rubber vulcanization accelerator as claimed in claim 1, wherein the vibration device in S2 comprises a mounting box (1), characterized in that: A mounting frame (9) is arranged inside the mounting box (1), the top of the mounting frame (9) extends out of the mounting box (1) and is slidably connected to the mounting box (1), an annular box (11) is fixedly installed on the top of the mounting frame (9), a plurality of grooved fixing blocks (13) are fixedly installed on the bottom inner wall of the annular box (11), a shaking box (12) is arranged at the center of the inner wall of the annular box (11), a plurality of T-shaped columns (1201) are fixedly installed on the outer wall of the shaking box (12), a plurality of T-shaped columns (1201) respectively penetrate adjacent grooved fixing blocks (13) and are slidably connected to the groove walls of adjacent grooved fixing blocks (13), and the shaking box (12) and the grooved fixing block (13) are elastically connected on the side close to each other via a plurality of springs (14).

3. The granulation equipment for rubber vulcanization accelerator according to claim 2, characterized in that: A screening box (101) is fixedly mounted on the top of the installation box (1), a screening plate (15) is fixedly mounted inside the screening box (101), an annular column (102) is fixedly mounted on the bottom of the screening plate (15) and on the side close to the screening box (101), a second motor (16) is fixedly mounted on the inner wall of the bottom of the annular column (102), a round rod (17) is fixedly mounted on the output shaft of the second motor (16), the top of the round rod (17) passes through the screening plate (15) and the shaking box (12) in sequence, the round rod (17) is rotatably connected to the screening plate (15) and the shaking box (12), respectively, and a scatterer (18) and a rectangular plate (19) are fixedly sleeved on the outer wall of the round rod (17), and the scatterer (18) is located above the rectangular plate (19).

4. The granulation equipment for rubber vulcanization accelerator according to claim 2, characterized in that: A motor 1 (2) is fixedly mounted on the inner wall of the bottom of the mounting box (1), and a worm gear (3) is fixedly mounted on the output shaft of the motor 1 (2).

5. The granulation equipment for rubber vulcanization accelerator according to claim 4, characterized in that: A fixing block (4) is fixedly mounted on the inner wall of the bottom of the installation box (1); a rotating rod (5) is rotatably mounted on the outer wall of the fixing block (4); the rotating rod (5) passes through the fixing block (4); a turbine (6) and a disc (7) are fixedly sleeved on the outer wall of the rotating rod (5); the turbine (6) is meshed with the worm rod (3).

6. The granulation equipment for rubber vulcanization accelerator according to claim 5, characterized in that: A grooved block (10) is fixedly mounted on the bottom of the mounting frame (9), and a cylinder (8) is fixedly mounted on the outer wall of the disc (7) that deviates from the center of the circle. The cylinder (8) penetrates the grooved block (10) and is slidably connected to the grooved block (10).

7. The granulation equipment for rubber vulcanization accelerator according to claim 6, characterized in that: Two limiting rings (801) are fixedly sleeved on the outer wall of the cylinder (8), and the two limiting rings (801) are respectively located on two sides of the grooved block (10).

8. The granulation equipment for rubber vulcanization accelerator according to claim 3, characterized in that: The scatterer (18) is entirely located inside the shaking box (12), and there is a height difference between the bottom of the scatterer (18) and the bottom inner wall of the shaking box (12).

9. The granulation equipment for rubber vulcanization accelerator according to claim 3, characterized in that: The rectangular plate (19) is located above the screening plate (15), and a plurality of hollow columns (20) are fixedly mounted on the bottom of the rectangular plate (19), wherein the plurality of hollow columns (20) are designed to be distributed at equal distances, and balls (21) are respectively arranged below the plurality of hollow columns (20), and the plurality of balls (21) are elastically connected to adjacent hollow columns (20) via spring 2 (22).

10. The granulation equipment for rubber vulcanization accelerator according to claim 3, characterized in that: A plurality of circular grooves (1501) are provided on the outer wall of the screening plate (15), and the plurality of circular grooves (1501) are designed to be distributed around the circumference at equal distances.

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