A high melt index polypropylene pelletizing apparatus

Abstract

The utility model discloses a high melting point polypropylene granulating device in the technical field of granulating equipment, including the processing platform, the one end of processing platform is installed with transmission assembly, the top of processing platform is provided with the flow baffle, and the one end of processing platform away from transmission assembly is provided with extrusion pelletizing assembly, and the bottom of processing platform is still provided with the discharge assembly close to extrusion pelletizing assembly, and transmission assembly includes first drive motor and transmission reducer, and this cutting part is composed of connecting column and pelletizing blade, and the pelletizing blade adopts the elastic sliding structure that constitutes of guide chute, metal guide block, compression spring and arc recess, and is through the sliding fit of guide chute and fixed screw rod, makes blade inside connecting column elasticity telescopic, when the pelletizing blade and granule extrusion mould rotary contact, can realize high -speed, even pelletizing, and when the granule extrusion mould surface is attached with the relatively hard residual material, the compression spring plays the buffering effect, avoids the hard collision and wear and tear aggravation of blade edge.

Description

Technical Field

[0001] This utility model relates to the field of granulation equipment technology, and in particular to a high melt index polypropylene granulation device. Background Technology

[0002] A granulation unit is a mechanical device that processes raw materials into granular products. Through processes such as heating, melting, extrusion, or crushing, it transforms solid raw materials or semi-finished products into uniform, controllable-size granules, facilitating storage, transportation, metering, and subsequent processing. Granulation units are widely used in industries such as plastics, chemicals, pharmaceuticals, and animal feed, for example, processing polymers, chemical agents, or feed ingredients into granules that can be used directly or further processed. Granulation improves material flowability, reduces dust, increases processing efficiency, and achieves material standardization and specification.

[0003] In the processing of polypropylene materials, granulation is a key step in achieving material performance regulation and recycling. However, in actual use, existing high melt index polypropylene granulation equipment lacks efficient heat conduction and cooling components on the outside of the extrusion tube, making it impossible to perform segmented temperature control and cooling of the polypropylene melt during extrusion. This results in the melt being too fluid and soft at high temperatures, easily causing problems such as unstable flow rate and material deformation during extrusion, which can affect the uniformity of pelleting and the quality of pellet formation. At the same time, the pelleting mechanism in existing equipment is mostly a fixed structure, and the pelleting blades cannot be elastically adjusted according to changes in the hardness or viscosity of the polypropylene melt. It is difficult to maintain a continuous fit between the blade and the extrusion die. When hard residual material adheres to the die surface, it can easily cause hard collisions and accelerated wear of the blade, reducing pelleting accuracy and service life.

[0004] Therefore, there is an urgent need to design a high melt flow index polypropylene granulation device with efficient heat conduction and cooling functions and a blade elastic adjustment structure to improve the stability of the granulation process and the consistency of the finished granule quality. Based on this, we propose a high melt flow index polypropylene granulation device. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide a high melt flow index polypropylene granulation device that can solve the problems of unstable melt extrusion and poor granule forming quality caused by the lack of an efficient heat conduction and cooling structure in the extrusion tube of existing high melt flow index polypropylene granulation devices, as well as the wear of the cutting blade and the reduction of cutting accuracy caused by the inability to adjust the cutting blade elastically.

[0007] To solve the above technical problems, this utility model provides a high melt index polypropylene granulation device, which adopts the following technical solution: it includes a processing platform, a transmission component is installed at one end of the processing platform, a baffle is provided on the top of the processing platform, an extrusion pelletizing component is provided at the end of the processing platform away from the transmission component, and a discharge component is also provided at the bottom of the processing platform near the bottom of the extrusion pelletizing component. The transmission assembly includes a first drive motor and a transmission reducer. The first drive motor is installed inside one end of the processing platform, and the transmission reducer is located at the top of one end of the processing platform. The transmission reducer is connected to the first drive motor via a transmission belt, and a transmission shaft is also provided at the end of the transmission reducer away from the transmission reducer.

[0008] Optionally, one end of the drive shaft is connected to an extrusion rod, one end of the extrusion rod is equipped with a particle extrusion die, the end of the extrusion rod away from the particle extrusion die is also equipped with a feeder, and several sets of heat-conducting components are also sleeved on the outside of the extrusion rod.

[0009] Optionally, the top of the processing platform is provided with several sets of first blowers, and the air outlet of the first blower is connected to a guide pipe, which is located directly below the heat-conducting component.

[0010] Optionally, the heat-conducting component includes a first arc-shaped sleeve, both ends of which are provided with positioning grooves. A second arc-shaped sleeve is provided on one side of the first arc-shaped sleeve, and positioning plates are provided at both ends of the second arc-shaped sleeve. Silicone grease thermal pads are also laid on the inner sides of the second arc-shaped sleeve and the first arc-shaped sleeve, respectively.

[0011] Optionally, the first arc-shaped sleeve and the second arc-shaped sleeve are matched with the extrusion rod structure, and the positioning groove and the positioning plate are engaged by a snap-fit.

[0012] Optionally, the extrusion pelletizing assembly includes a support substrate, a second drive motor is mounted on one side of the support substrate, the output end of the second drive motor is connected to a plurality of rotating cutting components, and a flow guide is also mounted on the side of the support substrate away from the second drive motor.

[0013] Optionally, the rotary cutting component includes a connecting post, one end of which is fitted with a pelletizing blade.

[0014] Optionally, one end of the connecting post is provided with an embedded groove, which matches the structure of the pelletizing blade. The embedded groove and the pelletizing blade are in a transition fit. One end of the connecting post is also connected to two sets of fixing screws.

[0015] Optionally, the pelletizing blade has two sets of guide grooves in the middle, the guide grooves are matched with the fixed screw structure, and the guide grooves and the fixed screw are in a sliding fit. Two sets of metal guide blocks are connected inside the guide grooves, and a compression spring is connected between the two sets of metal guide blocks. One set of metal guide blocks and one end of the guide groove are respectively provided with arc-shaped grooves, the arc-shaped grooves are matched with the fixed screw structure, and the arc-shaped grooves and the fixed screw are in a transition fit.

[0016] Optionally, the discharge assembly includes a guide pipe, a second blower is installed at one end of the discharge assembly, a hopper is connected to the end of the discharge assembly near the second blower, the hopper is located directly below the guide shroud, and a storage tank is installed at the end of the discharge assembly away from the second blower, and a sealed tank cover is provided on the top of the storage tank.

[0017] In summary, this utility model has at least one of the following beneficial effects: 1. In this utility model, by sleeved on the outside of the extrusion rod a heat-conducting component consisting of a first arc-shaped sleeve, a second arc-shaped sleeve, a positioning groove, and a positioning plate, and by laying a silicone grease heat-conducting pad on the inside of the sleeve, the structure design of the snap-fit ​​between the positioning groove and the positioning plate can achieve efficient heat conduction on the outer surface of the extrusion rod, so that the polypropylene melt conveyed inside the extrusion rod is uniformly heated during the extrusion process and the temperature distribution is stable. This can ensure that the melt flow rate is stable and not easily deformed during the spiral conveying and extrusion process, and achieve consistency in extrusion quality and granule formation.

[0018] 2. In this utility model, by setting multiple sets of first blowers on the processing platform and the guide pipe located below the heat-conducting component, a segmented air-cooling channel is formed on the outside of the extrusion rod, which can perform segmented cooling treatment on the outer surface of the extrusion rod, so that the temperature of the polypropylene melt drops uniformly during the conveying process, the texture hardens, further stabilizes the melt flow, improves the controllability of the extrusion process and the stability of the granulation process, and achieves the dual effect of melt temperature control and uniform particle forming.

[0019] 3. In this utility model, the rotary cutting component driven by the second drive motor consists of a connecting column and a pelletizing blade. The pelletizing blade adopts an elastic sliding structure composed of a guide groove, a metal guide block, a compression spring, and an arc-shaped groove. It slides and cooperates with the fixed screw through the guide groove, so that the blade can elastically extend and retract inside the connecting column. When the pelletizing blade comes into rotational contact with the pellet extrusion die, it can achieve high-speed and uniform pelletizing. At the same time, when hard residual material is attached to the surface of the pellet extrusion die, the compression spring plays a buffering role, avoiding hard collision of the blade edge and aggravated wear, thereby improving pelletizing accuracy and extending the service life of the device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the transmission component structure of this utility model; Figure 3 This is a schematic diagram showing the disassembled extrusion pelletizing assembly of this utility model; Figure 4 This is a disassembled schematic diagram of the rotary cutting component of this utility model; Figure 5 This is a disassembled schematic diagram of the heat-conducting component of this utility model; Figure 6 This is a schematic diagram of the material discharge assembly structure of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Processing platform; 11. First blower; 12. Guide pipe; 2. Transmission assembly; 21. First drive motor; 22. Transmission reducer; 23. Transmission shaft; 231. Extrusion rod; 232. Particle extrusion die; 233. Feeder; 234. Heat-conducting component; 2341. First arc-shaped sleeve; 2342. Positioning groove; 2343. Second arc-shaped sleeve; 2344. Positioning plate; 2345. Silicone thermal pad; 3. Baffle; 4. Extrusion assembly. 41. Pelletizing assembly; 42. Support base plate; 43. Second drive motor; 44. Rotary cutting component; 45. Connecting column; 46. Embedded groove; 47. Fixing screw; 48. Pelletizing blade; 49. Guide groove; 40. Metal guide block; 41. Compression spring; 22. Arc-shaped groove; 42. Flow guide; 50. Discharge assembly; 51. Guide pipe; 52. Second blower; 53. Drop hopper; 54. Storage tank; 55. Sealed tank cover. Detailed Implementation

[0023] 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.

[0024] Example: Refer to Figures 1 to 6This utility model provides an embodiment of a high melt flow index polypropylene granulation device, including a processing platform 1. A transmission assembly 2 is installed at one end of the processing platform 1, a baffle 3 is provided on the top of the processing platform 1, an extrusion pelletizing assembly 4 is provided at the end of the processing platform 1 away from the transmission assembly 2, and a discharge assembly 5 is also provided at the bottom of the processing platform 1 near the bottom of the extrusion pelletizing assembly 4. The transmission assembly 2 includes a first drive motor 21 and a transmission reducer 22. The first drive motor 21 is installed inside one end of the processing platform 1, and the transmission reducer 22 is located at the top of one end of the processing platform 1. The transmission reducer 22 is connected to the top of the processing platform 1. The transmission belt is connected to the first drive motor 21. A transmission shaft 23 is also provided at the end of the transmission reducer 22 furthest from the reducer. This high melt flow index polypropylene granulation device, through the coordinated use of the first drive motor 21, the transmission reducer 22, and the transmission shaft 23, can stably transmit the power output from the motor to the extrusion rod 231 after reduction and torque conversion, achieving uniform spiral conveying of the polypropylene melt. This ensures the stability and continuity of the melt flow rate during the extrusion process, enabling efficient and controllable extrusion and consistent granule formation. One end of the transmission shaft 23 is connected to the extrusion rod. 231. A granule extrusion die 232 is installed at one end of the extrusion rod 231, and a feeder 233 is installed at the end of the extrusion rod 231 away from the granule extrusion die 232. Several sets of heat-conducting components 234 are also sleeved on the outside of the extrusion rod 231. By connecting one end of the drive shaft 23 to the extrusion rod 231, the power output from the transmission assembly 2 can be stably transmitted to the extrusion rod 231, realizing the spiral conveying of polypropylene melt inside the extrusion rod 231. By installing the granule extrusion die 232 at one end of the extrusion rod 231, the spirally conveyed polypropylene melt can be accurately extruded into a continuous and uniform melt. The extrusion rod 231 is designed to ensure accurate positioning for subsequent pelleting. By installing a feeder 233 at the end of the extrusion rod 231 away from the pellet extrusion die 232, the heated polypropylene melt can be continuously fed into the extrusion rod 231, ensuring the continuity of material supply and achieving stable operation of the extrusion process. By installing several sets of heat-conducting components 234 on the outside of the extrusion rod 231, the high-temperature melt heat inside the extrusion rod 231 can be efficiently transferred to the outside. Combined with cooling airflow, the temperature of the extrusion rod 231 can be controlled in stages, making the melt texture uniform and stable, providing an ideal material state for subsequent pelleting.

[0025] Several sets of first blowers 11 are installed on the top of the processing platform 1. The outlets of the first blowers 11 are connected to guide pipes 12, which are located directly below the heat-conducting component 234. By installing several sets of first blowers 11 on the top of the processing platform 1, stable airflow power can be provided to the heat-conducting component 234 outside the extrusion rod 231. By connecting the outlets of the first blowers 11 to the guide pipes 12 and positioning the guide pipes 12 directly below the heat-conducting component 234, the airflow can be uniformly guided to the surface of the heat-conducting component 234, achieving… The directional air cooling treatment on the exterior of the extrusion rod 231 enables multi-stage temperature control of the internally transported polypropylene melt, ensuring uniform melt texture and stable flow rate, providing an ideal material state for subsequent pelletizing. The heat-conducting component 234 includes a first arc-shaped sleeve 2341, with positioning grooves 2342 at both ends. A second arc-shaped sleeve 2343 is provided on one side of the first arc-shaped sleeve 2341, with positioning plates 2344 at both ends of the second arc-shaped sleeve 2343. 3. Silicone grease thermal pads 2345 are also laid on the inner sides of the first arc-shaped sleeve 2341 and the second arc-shaped sleeve 2343. By laying silicone grease thermal pads 2345 on the inner sides of the first arc-shaped sleeve 2341 and the second arc-shaped sleeve 2343, the heat conduction performance of the contact surface can be enhanced, realizing efficient heat exchange between the surface of the extrusion rod 231 and the heat-conducting component 234. This can effectively cool and equalize the polypropylene melt inside the extrusion rod 231, ensuring that the melt has a uniform texture and stable flow rate during transportation and extrusion. The first arc-shaped sleeve 2341, the second arc-shaped sleeve 2343, and the second arc-shaped sleeve 2344 are respectively laid on the inner sides of the first arc-shaped sleeve 2341 and the second arc-shaped sleeve 2344. The sleeve 2343 is structurally matched with the extrusion rod 231, and the positioning groove 2342 and the positioning plate 2344 are engaged. By matching the first arc-shaped sleeve 2341 and the second arc-shaped sleeve 2343 with the structure of the extrusion rod 231, it can be ensured that the heat-conducting component 234 is tightly attached to the surface of the extrusion rod 231, ensuring efficient heat conduction. Through the engagement between the positioning groove 2342 and the positioning plate 2344, the two sets of arc-shaped sleeves can be firmly fixed on the outside of the extrusion rod 231, preventing loosening or displacement during extrusion and transmission.

[0026] The extrusion pelletizing assembly 4 includes a support base plate 41. A second drive motor 42 is mounted on one side of the support base plate 41. The output end of the second drive motor 42 is connected to several sets of rotary cutting components 43. A flow guide shroud 44 is also mounted on the side of the support base plate 41 away from the second drive motor 42. By setting the support base plate 41, a stable mounting platform can be provided for the extrusion pelletizing assembly 4, ensuring the structural stability of the assembly during operation. By mounting the second drive motor 42 on one side of the support base plate 41 and connecting its output end to several sets of rotary cutting components 43, high-speed pelletizing of the polypropylene melt extruded from the extrusion orifice can be achieved, ensuring the uniformity and size consistency of the pellets. By mounting the flow guide shroud 44 on the side of the support base plate 41 away from the second drive motor 42, the pellets after pelletizing can be guided to discharge smoothly, reducing pellet accumulation and backflow, achieving continuity of the pelletizing process and improving production efficiency. The rotary cutting component 43 includes a connecting column 431, and a pelletizing blade 432 is mounted on one end of the connecting column 431. The cutting component 43, through the cooperation between the connecting post 431 and the pelletizing blade 432, ensures that the pelletizing blade 432 maintains stable positioning and synchronous rotation during rotation, guaranteeing that the pelletizing blade 432 accurately cuts the polypropylene melt along a predetermined trajectory during rotation. One end of the connecting post 431 has an embedded groove 4311, which matches the structure of the pelletizing blade 432. The embedded groove 4311 and the pelletizing blade 432 have a transition fit. Two sets of [unclear - possibly related to a specific type of fitting] are also connected to one end of the connecting post 431. The fixing screw 4312, through the embedded groove 4311 opened at one end of the connecting post 431, matches the structure of the pelletizing blade 432 and adopts a transition fit, which can firmly embed the pelletizing blade 432 into the connecting post 431, so that the pelletizing blade 432 maintains a precise position during rotation; through the two sets of fixing screws 4312 set at one end of the connecting post 431, the pelletizing blade 432 in the embedded groove 4311 can be fastened and positioned to ensure that the pelletizing blade 432 will not loosen or shift during high-speed pelletizing.

[0027] Two sets of guide grooves 4321 are provided in the middle of the pelletizing blade 432. The guide grooves 4321 are structurally matched with the fixing screw 4312, and there is a sliding fit between the guide grooves 4321 and the fixing screw 4312. Two sets of metal guide blocks 4322 are connected inside the guide grooves 4321, and a compression spring 4323 is connected between the two sets of metal guide blocks 4322. One end of one set of metal guide blocks 4322 and the guide groove 4321 are respectively provided with arc-shaped grooves 4234. The arc-shaped grooves 4234 are structurally matched with the fixing screw 4312, and there is a transition fit between the arc-shaped grooves 4234 and the fixing screw 4312. By using the two sets of guide grooves 4321 in the middle of the pelletizing blade 432 in cooperation with the fixing screw 4312 and adopting a sliding fit structure, the pelletizing blade 432 can be used in conjunction with the connecting post 431. The internal sliding direction ensures that the pelletizing blade 432 remains stably guided during rotation. By connecting two sets of metal guide blocks 4322 in the guide groove 4321 and setting a compression spring 4323 between the metal guide blocks 4322, the pelletizing blade 432 can generate elastic buffer when it encounters hard residual material attached to the pellet extrusion die 232, avoiding hard collision of the pelletizing blade 432. By matching the structure of the arc-shaped groove 4234 opened at the end of the guide groove 4321 with the fixed screw 4312 and adopting a transition fit, the displacement range of the metal guide blocks 4322 in the guide groove 4321 can be limited, ensuring that the pelletizing blade 432 slides stably along the predetermined trajectory during rotation and cutting, and achieving continuous and tight contact between the blade and the pellet extrusion die 232.

[0028] The discharge assembly 5 includes a guide pipe 51, a second blower 52 installed at one end of the discharge assembly 5, a hopper 53 connected to the end of the discharge assembly 5 near the second blower 52, the hopper 53 being located directly below the guide shroud 44, and a storage tank 54 installed at the end of the discharge assembly 5 away from the second blower 52. A sealing cap 55 is also provided on the top of the storage tank 54. The discharge assembly 5, through the cooperation of the guide pipe 51, the second blower 52, the hopper 53, the storage tank 54, and the sealing cap 55, discharges polypropylene granules from the guide pipe 51. When the flow hood 44 flows into the hopper 53 and enters the guide pipe 51, the second blower 52 blows the particles in the guide pipe 51. Through this blowing action, not only can the particles be cooled a second time, so that the particles can be quickly hardened and shaped, but the lighter polypropylene particles can also be smoothly transported to the storage tank 54, avoiding the particles from sticking or clogging during the falling and collection process. Through this design, the particles can be collected efficiently and continuously and formed uniformly, ensuring the quality of the finished particles is stable and improving the overall production efficiency and reliability of the device.

[0029] Working Principle: The high melt flow index polypropylene granulation device designed in this scheme mainly includes a processing platform 1, a transmission assembly 2, a baffle 3, an extrusion pelletizing assembly 4, and a discharge assembly 5. The transmission assembly 2 consists of a first drive motor 21, a transmission reducer 22, and a transmission shaft 23. During operation, the heat-treated polypropylene melt is fed into the extrusion rod 231 through the feeder 233. Driven by the first drive motor 21, the transmission reducer 22, and the transmission shaft 23, the extrusion rod 231 performs a spiral conveying, causing the melt to flow uniformly along the extrusion rod 231. The high temperature of the melt... Heat is conducted through the wall of the extrusion rod 231 to its outer surface. The heat-conducting component 234 of the outer jacket can efficiently transfer heat. The heat-conducting component 234 consists of a first arc-shaped sleeve 2341, a second arc-shaped sleeve 2343, a positioning groove 2342, and a positioning plate 2344. A silicone grease thermal pad 2345 is laid on the inner side of the sleeve. Through the snap-fit ​​structure between the positioning groove 2342 and the positioning plate 2344, the first arc-shaped sleeve 2341 and the second arc-shaped sleeve 2343 can be firmly fixed to the outside of the extrusion rod 231, so as to achieve efficient heat conduction of the temperature of the extrusion rod 231.

[0030] To further control the temperature, a first blower 11 and a guide pipe 12 are installed on the processing platform 1. The guide pipe 12 is located below the heat-conducting component 234. Through the coordinated use of multiple sets of first blowers 11 and multiple sets of heat-conducting components 234, the exterior of the extrusion rod 231 can be subjected to segmented air cooling treatment, so that the temperature of the polypropylene melt material inside the extrusion rod 231 is reduced uniformly. When the melt temperature drops, its texture tends to harden. During the spiral conveying and extrusion process inside the extrusion rod 231, the flow rate is stable and it is not easy to deform, which can ensure the extrusion quality and the consistency of granule formation.

[0031] In the pelletizing stage, this solution drives the rotary cutting component 43 through the output of the second drive motor 42. The rotary cutting component 43 consists of a connecting column 431 and a pelletizing blade 432. The pelletizing blade 432 achieves an elastic sliding structure through a guide groove 4321, a metal guide block 4322, a compression spring 4323, and an arc-shaped groove 4234. The sliding cooperation between the guide groove 4321 and the fixed screw 4312 ensures the stable sliding of the blade inside the connecting column 431. When the pelletizing blade 432 contacts the pellet extrusion die 232... During rotational contact, the polypropylene melt extruded from the extrusion orifice can be pelletized at high speed and uniformly. The pelletizing blade 432 can elastically extend and retract under the action of the compression spring 4323, so that the blade edge is always in close contact with the pellet extrusion die 232, avoiding uneven pelleting caused by vibration or gaps. At the same time, when hard residual material is attached to the surface of the pellet extrusion die 232, the compression spring 4323 can also play an elastic buffering role, which can prevent the blade edge from making hard collision contact with the residual material, reduce blade edge wear, and ensure pelletizing accuracy and service life of the device.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high melt flow index polypropylene granulation apparatus, comprising a processing platform (1), characterized in that: A transmission assembly (2) is installed at one end of the processing platform (1), a baffle (3) is provided on the top of the processing platform (1), an extrusion pelletizing assembly (4) is provided at the end of the processing platform (1) away from the transmission assembly (2), and a discharge assembly (5) is also provided at the bottom of the processing platform (1) near the extrusion pelletizing assembly (4). The transmission assembly (2) includes a first drive motor (21) and a transmission reducer (22). The first drive motor (21) is installed inside one end of the processing platform (1). The transmission reducer (22) is located at the top of one end of the processing platform (1). The transmission reducer (22) is connected to the first drive motor (21) via a transmission belt. A transmission shaft (23) is also provided at the end of the transmission reducer (22) away from the transmission reducer (22).

2. The high melt flow index polypropylene granulation apparatus according to claim 1, characterized in that: One end of the drive shaft (23) is connected to an extrusion rod (231), one end of the extrusion rod (231) is equipped with a particle extrusion die (232), and the end of the extrusion rod (231) away from the particle extrusion die (232) is also equipped with a feeder (233). Several sets of heat-conducting components (234) are also sleeved on the outside of the extrusion rod (231).

3. The high melt flow index polypropylene granulation apparatus according to claim 2, characterized in that: The processing platform (1) is provided with several sets of first blowers (11) on its top. The air outlet of the first blower (11) is connected to a guide pipe (12), which is located directly below the heat-conducting component (234).

4. The high melt flow index polypropylene granulation apparatus according to claim 3, characterized in that: The heat-conducting component (234) includes a first arc-shaped sleeve (2341), both ends of which are provided with positioning grooves (2342). A second arc-shaped sleeve (2343) is provided on one side of the first arc-shaped sleeve (2341), and positioning plates (2344) are provided at both ends of the second arc-shaped sleeve (2343). Silicone grease thermal pads (2345) are also laid on the inner sides of the second arc-shaped sleeve (2343) and the first arc-shaped sleeve (2341).

5. The high melt flow index polypropylene granulation apparatus according to claim 4, characterized in that: The first arc-shaped sleeve (2341) and the second arc-shaped sleeve (2343) are structurally matched with the extrusion rod (231), and the positioning groove (2342) and the positioning plate (2344) are in a snap-fit ​​fit.

6. The high melt flow index polypropylene granulation apparatus according to claim 1, characterized in that: The extrusion pelletizing assembly (4) includes a support base plate (41), a second drive motor (42) is mounted on one side of the support base plate (41), the output end of the second drive motor (42) is connected to a number of rotating cutting components (43), and a flow guide (44) is also mounted on the side of the support base plate (41) away from the second drive motor (42).

7. The high melt flow index polypropylene granulation apparatus according to claim 6, characterized in that: The rotary cutting component (43) includes a connecting post (431), one end of which is fitted with a granulating blade (432).

8. The high melt flow index polypropylene granulation apparatus according to claim 7, characterized in that: One end of the connecting post (431) is provided with an embedded groove (4311), which is matched with the structure of the pelletizing blade (432). The embedded groove (4311) and the pelletizing blade (432) are in transition fit. One end of the connecting post (431) is also connected to two sets of fixing screws (4312).

9. A high melt flow index polypropylene granulation apparatus according to claim 8, characterized in that: The pelletizing blade (432) has two sets of guide grooves (4321) in the middle. The guide grooves (4321) are matched with the structure of the fixing screw (4312). The guide grooves (4321) and the fixing screw (4312) are in sliding fit. Two sets of metal guide blocks (4322) are connected inside the guide grooves (4321). A compression spring (4323) is connected between the two sets of metal guide blocks (4322). One set of metal guide blocks (4322) and one end of the guide groove (4321) are respectively provided with arc-shaped grooves (4234). The arc-shaped grooves (4234) are matched with the structure of the fixing screw (4312). The arc-shaped grooves (4234) and the fixing screw (4312) are in transition fit.

10. A high melt flow index polypropylene granulation apparatus according to claim 1, characterized in that: The discharge assembly (5) includes a guide pipe (51), a second blower (52) is installed at one end of the discharge assembly (5), a drop hopper (53) is connected to the end of the discharge assembly (5) near the second blower (52), the drop hopper (53) is located directly below the guide shroud (44), a storage tank (54) is installed at the end of the discharge assembly (5) away from the second blower (52), and a sealing tank cover (55) is also provided on the top of the storage tank (54).

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