Bamboo powder biodegradable material granulating device based on cold fluid cooling

Abstract

The utility model relates to the technical field of granulation devices, in particular to a bamboo powder biodegradable material granulation device based on cold fluid cooling, which comprises an extruder main body and a granulation mechanism, and the granulation mechanism is arranged at one end of an extrusion port of the extruder main body; a template is arranged in the pelletizing mechanism, the template is aligned with an extrusion opening of the extruder main body, a plurality of through holes are formed in the template, and after materials are extruded by the extruder main body, a plurality of strip-shaped materials are formed through the through holes in the template; a sleeve rod is arranged in the center of the template, a sleeve sleeves the sleeve rod, and one end of the sleeve abuts against the template and is fixedly connected with a cutter; a cooling mechanism is arranged in the pelletizing mechanism, the cooling mechanism comprises a condensation pipe arranged in the pelletizing mechanism, the condensation pipe is arranged in an S shape in the pelletizing mechanism, the condensation pipe penetrates out of the side wall of the pelletizing mechanism, and a water inlet and a water outlet are formed in the portion, extending outwards, of the condensation pipe. The cooling effect of the device can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of granulation devices, in particular to a bamboo powder biodegradable material granulation device based on cold fluid cooling. Background Art

[0002] As a plastic processing aid, masterbatch is composed of chemical additives, carrier resins and dispersants, etc. However, during the granulation process, the melt-extruded masterbatch needs to be cooled quickly, and traditional methods such as using a closed water circulation pelletizer have problems with large amounts of water use and processing pressure.

[0003] Chinese patent authorization announcement number CN219748591U discloses an antibacterial masterbatch granulation device. When the antibacterial masterbatch granulation device is working, the raw material first enters the twin-screw extruder main machine through the feed hopper, and the twin screw is driven by the screw motor to rotate, melt the raw material and extrude it. The extruded molten material enters the die cutting head and is evenly distributed to the small holes of the template through the melt channel of the diverter cone. The cutter rotates rapidly under the drive of the cutter motor to cut off the material extruded from the small hole to form masterbatch. These masterbatch then fall into the upper chamber in the barrel, and the inner wall of the chamber is spirally provided with a condenser. The condenser circulates the cold fluid through the cold fluid inlet and outlet, and at the same time, the first fan sends the cold air into the upper chamber through the first air inlet, and uses the wind force to bring the cold amount of the cold fluid into the barrel to quickly cool the masterbatch. The cooled masterbatch enters the bottom chamber, and the second fan sends the cold air through the second air inlet to form a spiral airflow, which further cools the masterbatch and slows down its falling speed, thereby increasing the residence time. Finally, the cooled masterbatch is discharged through the discharge port and can be transported by the feeding device to the silo of the packaging bracket for packaging. However, the device in the patent document has a poor cooling effect on the center of the pelletizing mechanism, which easily causes heat accumulation in the center of the pelletizing mechanism, resulting in poor quality of the finished product.

[0004] Therefore, the utility model aims to provide a bamboo powder biodegradable material granulation device based on cold fluid cooling which can solve the above problems. Utility Model Content

[0005] In view of the above problems, a bamboo powder biodegradable material granulation device based on cold fluid cooling is provided. By arranging a condenser in the granulator mechanism, the condenser is arranged in an S shape in the granulator mechanism and passes through the center of the granulator mechanism. This solves the problem that the cooling effect in the center of the granulator mechanism is poor, which easily causes heat accumulation in the center of the granulator mechanism, thereby resulting in poor quality of the finished product.

[0006] In order to solve the problems of the prior art, the utility model provides a bamboo powder biodegradable material granulation device based on cold fluid cooling, comprising an extruder main body and a granulator mechanism, wherein the granulator mechanism is arranged at one end of the extrusion port of the extruder main body; a template is arranged in the granulator mechanism, the template is aligned with the extrusion port of the extruder main body, a plurality of through holes are opened on the template, after the material is extruded by the extruder main body, a plurality of long strips of material are formed through the through holes on the template; a sleeve rod is arranged at the center of the template, a sleeve is arranged outside the sleeve rod, one end of the sleeve is pressed against the template and fixedly connected with a cutter; a cooling mechanism is arranged in the granulator mechanism, the cooling mechanism comprises a condenser arranged in the granulator mechanism, the condenser is arranged in an S shape in the granulator mechanism, the condenser passes through the side wall of the granulator mechanism and a water inlet and a water outlet are arranged on the part extending outward.

[0007] Preferably, a scraping mechanism is provided on the condenser; the scraping mechanism includes a scraper plate arranged in the pelletizing mechanism; a plurality of sliding holes are opened on the scraper plate, and the condenser is inserted into the sliding holes and is slidably connected with the scraper plate.

[0008] Preferably, a moving block is provided on the scraper plate, a moving groove is provided on the top of the pelletizing mechanism, the moving block is slidably installed in the moving groove and passes through the top of the pelletizing mechanism; a threaded hole is provided on the part of the moving block passing through the pelletizing mechanism; mounting platforms are provided on both sides of the top of the pelletizing mechanism, mounting holes are provided on the mounting platforms, threaded rods are passed through the mounting holes, the threaded rods are threadedly connected to the moving block through the threaded holes, and a first gear is coaxially provided at one end of the threaded rod; a first motor is provided on the side of the mounting platform at the top of the pelletizing mechanism, the output shaft of the first motor is connected to the second gear, and the first gear is meshingly connected to the second gear.

[0009] Preferably, an anti-falling block is provided at one end of the threaded rod away from the first gear to prevent the threaded rod from falling off the mounting platform.

[0010] Preferably, an air inlet for cold air is provided at the bottom of the pelletizing mechanism.

[0011] Preferably, a driving mechanism is installed at the top of the pelletizing mechanism, and the driving mechanism includes a second motor, and the output shaft of the second motor is connected to a rotating shaft, and the rotating shaft drives the sleeve to rotate through a synchronous belt.

[0012] Preferably, a material outlet is provided at the bottom of the pelletizing mechanism, and an anti-blocking mechanism is arranged at the material outlet; the anti-blocking mechanism comprises a first rotating roller and a second rotating roller arranged at the material outlet, and a plurality of breaking blocks are arranged on the sides of the first rotating roller and the second rotating roller to prevent material accumulation.

[0013] Preferably, the part of the rotating shaft of the first rotating roller that passes through the pelletizing mechanism is fixedly connected to the third gear, the part of the rotating shaft of the second rotating roller that passes through the pelletizing mechanism is fixedly connected to the fourth gear, and the third gear and the fourth gear are meshingly connected; a third motor is arranged at the outside of the pelletizing mechanism at a position corresponding to the position of the third gear, and the output shaft of the third motor is fixedly connected to the third gear.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model adopts an S-shaped condenser tube design and sets a scraping mechanism on the condenser tube, which effectively solves the problems in the prior art that the condenser tube has a poor cooling effect on the center of the pelletizing mechanism and the outer wall of the condenser tube is easy to adhere to materials. The S-shaped condenser tube increases the cooling area and improves the cooling efficiency. At the same time, the setting of the scraping mechanism can clean up the attachments on the outer wall of the condenser tube in real time, ensuring the efficient operation of the condenser tube and the stability of the device;

[0016] 2. In the utility model, an air inlet is arranged at the bottom of the pelletizing mechanism to introduce cold air for auxiliary cooling, further enhancing the cooling effect. The cold air exchanges heat with the pellets and the condenser tube, effectively taking away the heat, accelerating the cooling and solidification process of the pellets and improving production efficiency. At the same time, the flow of cold air also maintains air circulation inside the pelletizing mechanism to prevent heat accumulation;

[0017] 3. In the utility model, an anti-blocking mechanism is set at the material outlet. Through the rotation of the first rotating roller and the second rotating roller and the function of the breaking block, the material blocking problem at the outlet is effectively prevented. This design ensures the smooth discharge of materials, improves the continuity and stability of the device, and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a bamboo powder biodegradable material granulation device based on cold fluid cooling of the utility model;

[0019] Figure 2 It is a three-dimensional schematic diagram of a pelletizing mechanism of a bamboo powder biodegradable material pelletizing device based on cold fluid cooling of the utility model;

[0020] Figure 3 It is a front view of a pelletizing mechanism of a bamboo powder biodegradable material pelletizing device based on cold fluid cooling of the utility model;

[0021] Figure 4 It is a three-dimensional schematic diagram of a template of a bamboo powder biodegradable material granulation device based on cold fluid cooling of the utility model;

[0022] Figure 5This is a structural exploded view of a scraping mechanism of a bamboo powder biodegradable material granulation device based on cold fluid cooling of the utility model;

[0023] Figure 6 The utility model is a three-dimensional schematic diagram of an anti-blocking mechanism of a bamboo powder biodegradable material granulating device based on cold fluid cooling.

[0024] The numbers in the figure are: 1. extruder body; 2. pelletizing mechanism; 21. template; 22. sleeve rod; 23. sleeve; 24. cutter; 3. cooling mechanism; 31. condenser; 32. water inlet; 33. water outlet; 4. scraper mechanism; 41. scraper plate; 42. moving block; 43. moving groove; 44. mounting table; 45. threaded rod; 451. first gear; 46. first motor; 461. second gear; 5. air inlet; 6. driving mechanism; 61. second motor; 7. anti-blocking mechanism; 71. first rotating roller; 711. third gear; 72. second rotating roller; 721. fourth gear; 73. breaking up block; 74. third motor. DETAILED DESCRIPTION

[0025] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Reference Figure 1-Figure 6 As shown: A bamboo powder biodegradable material granulation device based on cold fluid cooling, comprising an extruder body 1 and a pelletizing mechanism 2, the pelletizing mechanism 2 is arranged at one end of the extrusion port of the extruder body 1; a template 21 is arranged in the pelletizing mechanism 2, the template 21 is aligned with the extrusion port of the extruder body 1, a plurality of through holes are opened on the template 21, after the material is extruded by the extruder body 1, a plurality of long strips of material are formed through the through holes on the template 21; a sleeve rod 22 is arranged at the center of the template 21, a sleeve 23 is arranged outside the sleeve rod 22, one end of the sleeve 23 is pressed against the template 21 and fixedly connected with a cutter 24; a cooling mechanism 3 is arranged in the pelletizing mechanism 2, the cooling mechanism 3 comprises a condenser 31 arranged in the pelletizing mechanism 2, the condenser 31 is arranged in an S shape in the pelletizing mechanism 2, the condenser 31 passes through the side wall of the pelletizing mechanism 2 and the outwardly extending part is provided with a water inlet 32 ​​and a water outlet 33.

[0027] In the prior art, the condenser 31 is closely attached to the outer side of the pelletizing mechanism 2, and the cooling effect on the central part of the pelletizing mechanism 2 is poor. To solve this problem, the material is first fed into the extruder body 1 for extrusion processing. The extruder body 1 melts and plasticizes the bamboo powder biodegradable material through its internal screw and heating system and other components to form a continuous molten material. Subsequently, the molten material is extruded to the extrusion port of the extruder body 1.

[0028] At the extrusion port, a template 21 is provided which is aligned with the extrusion port. The template 21 has a plurality of through holes, and the shape and size of the through holes determine the shape and size of the final particles. The molten material passes through the through holes on the template 21 to form a plurality of long strips of material.

[0029] When the material passes through the template 21 , the cutter 24 cuts the long strip of material, thereby cutting the long strip of material into uniform particles.

[0030] A cooling mechanism 3 is provided in the pelletizing mechanism 2. The cooling mechanism 3 is mainly composed of a condenser 31 provided inside the pelletizing mechanism 2. The condenser 31 is provided in an S-shape in the pelletizing mechanism 2, so that the cooling area can be increased, the cooling efficiency can be improved, and the central part of the pelletizing mechanism 2 can be cooled, thereby improving the heat dissipation effect of the device. One end of the condenser 31 passes through the side wall of the pelletizing mechanism 2 and extends outward, and is provided with a water inlet 32 ​​and a water outlet 33. By introducing a cold fluid into the condenser 31, the heat of the particles can be taken away, so that the particles can be quickly cooled and solidified. Finally, the particles after cooling and solidification can be obtained through subsequent collection and processing steps to obtain finished products.

[0031] Reference Figure 1-Figure 5 As shown: the condenser tube 31 is provided with a scraper mechanism 4; the scraper mechanism 4 includes a scraper plate 41 arranged in the pelletizing mechanism 2; the scraper plate 41 is provided with a plurality of sliding holes, and the condenser tube 31 is penetrated in the sliding holes and is slidably connected with the scraper plate 41.

[0032] When cold fluid flows in the condenser tube 31, the cold fluid will take away the heat of the particles, causing the particles to cool and solidify rapidly.

[0033] During the operation of the device, the function of the scraper plate 41 is to clean the material attached to the outer wall of the condenser tube 31. Since the condenser tube 31 is arranged in an S shape in the pelletizing mechanism 2 and its surface temperature is relatively low, the material may be attached to the outer wall of the condenser tube 31 during the cooling process. If not cleaned in time, the attachment may affect the cooling effect of the condenser tube 31 and even cause device failure. The existence of the scraper plate 41 can effectively scrape off these attachments, ensuring that the condenser tube 31 always maintains a clean and efficient cooling performance.

[0034] Reference Figure 1-Figure 5As shown: a moving block 42 is arranged on the scraper plate 41, a moving groove 43 is provided on the top of the pelletizing mechanism 2, the moving block 42 is slidably installed in the moving groove 43 and passes through the top of the pelletizing mechanism 2; a threaded hole is provided on the part of the moving block 42 passing through the pelletizing mechanism 2; mounting platforms 44 are arranged on both sides of the top of the pelletizing mechanism 2, a mounting hole is provided on the mounting platform 44, a threaded rod 45 is passed through the mounting hole, the threaded rod 45 is threadedly connected to the moving block 42 through the threaded hole, and a first gear 451 is coaxially arranged at one end of the threaded rod 45; a first motor 46 is arranged on the side of the mounting platform 44 at the top of the pelletizing mechanism 2, the output shaft of the first motor 46 is connected to the second gear 461, and the first gear 451 is meshed with the second gear 461.

[0035] When the first motor 46 is started, its output shaft drives the second gear 461 to rotate, and then drives the first gear 451 and the threaded rod 45 to rotate through gear meshing. Since the threaded rod 45 is threadedly connected to the moving block 42, the rotation of the threaded rod 45 is converted into a linear motion of the moving block 42 in the moving groove 43. The scraper plate 41 moves synchronously with the movement of the moving block 42, thereby effectively cleaning the outer wall of the condenser tube 31.

[0036] Reference Figure 5 As shown, an anti-falling block is provided at one end of the threaded rod 45 away from the first gear 451 to prevent the threaded rod 45 from falling off the mounting platform 44 .

[0037] When the scraper plate 41 encounters resistance when cleaning the attachments on the outer wall of the condenser tube 31, the anti-slip block can effectively prevent the threaded rod 45 from sliding out of the mounting hole.

[0038] Reference Figure 1-Figure 3 As shown: the bottom of the pelletizing mechanism 2 is provided with an air inlet 5 for cold air to enter.

[0039] When the device is running, cold air can be introduced into the pelletizing mechanism 2 through the air inlet 5. The cold air flows inside the pelletizing mechanism 2 and exchanges heat with the pellets just cut and the condenser 31. Since the cold air has a lower temperature, it can effectively take away the heat from the pellets and the condenser 31, thereby accelerating the cooling process of the pellets.

[0040] At the same time, the flow of cold air also helps to maintain air circulation inside the pelletizing mechanism 2, preventing the temperature from rising due to heat accumulation.

[0041] Reference Figure 1 and Figure 2 As shown: a driving mechanism 6 is installed at the top of the pelletizing mechanism 2, and the driving mechanism 6 includes a second motor 61. The output shaft of the second motor 61 is connected to a rotating shaft, and the rotating shaft drives the sleeve 23 to rotate through a synchronous belt.

[0042] When the device is started and needs to perform a granulation operation, the second motor 61 starts to run, and the rotating shaft also rotates accordingly. As the rotating shaft rotates, the sleeve 23 starts to rotate under the drive of the synchronous belt, thereby driving the cutter 24 to work.

[0043] Reference Figure 2 and Figure 6 As shown: a material outlet is provided at the bottom of the pelletizing mechanism 2, and an anti-blocking mechanism 7 is provided at the material outlet; the anti-blocking mechanism 7 comprises a first rotating roller 71 and a second rotating roller 72 arranged at the material outlet, and a plurality of breaking blocks 73 are provided on the sides of the first rotating roller 71 and the second rotating roller 72 to prevent material accumulation.

[0044] A plurality of breaking blocks 73 are evenly distributed on the sides of the first rotating roller 71 and the second rotating roller 72. When the first rotating roller 71 and the second rotating roller 72 start to rotate, the breaking blocks 73 rotate accordingly and come into contact with the material flowing through the material outlet. The breaking blocks 73 can effectively break up the accumulated materials and push the materials to move toward the material outlet.

[0045] Therefore, under the joint action of the first rotating roller 71, the second rotating roller 72 and the breaking block 73, the material can maintain a certain flow speed and be discharged smoothly from the material outlet.

[0046] Reference Figure 6 As shown: the part of the rotating shaft of the first rotating roller 71 that passes through the pelletizing mechanism 2 is fixedly connected to the third gear 711, the part of the rotating shaft of the second rotating roller 72 that passes through the pelletizing mechanism 2 is fixedly connected to the fourth gear 721, and the third gear 711 and the fourth gear 721 are meshingly connected; a third motor 74 is arranged at the outside of the pelletizing mechanism 2 at a position corresponding to the position of the third gear 711, and the output shaft of the third motor 74 is fixedly connected to the third gear 711.

[0047] The output shaft of the third motor 74 is connected to the third gear 711. When the third motor 74 is started, the third gear 711 rotates accordingly. Since the rotating shaft of the first rotating roller 71 is fixedly connected to the third gear 711, the rotation of the third gear 711 drives the first rotating roller 71 to start rotating.

[0048] At the same time, due to the transmission relationship between the gears, when the third gear 711 rotates, the fourth gear 721 meshing therewith also rotates. The rotating shaft of the second rotating roller 72 is fixedly connected to the fourth gear 721, so the rotation of the fourth gear 721 drives the second rotating roller 72 to rotate.

[0049] During the rotation of the first rotating roller 71 and the second rotating roller 72 , the breaking block 73 will continuously come into contact with the material flowing through the material outlet, break up the accumulated material and push it toward the outlet, thereby effectively preventing the material from being blocked at the outlet.

[0050] First, the bamboo powder biodegradable material is fed into the extruder body 1 for processing. Inside the extruder body 1, the bamboo powder biodegradable material is melted and plasticized by the pushing of the screw and the heating of the heating system to form a continuous molten material. Subsequently, the molten material is extruded to the extrusion port of the extruder body 1.

[0051] At the extrusion port, a template 21 is provided which is aligned with the extrusion port. The template 21 is provided with a plurality of through holes which can determine the shape and size of the particles. After the molten material passes through the through holes on the template 21, it is molded into a plurality of long strips of material.

[0052] In the pelletizing mechanism 2, a sleeve rod 22 is provided at the center of the template 21, and a sleeve 23 is sleeved on the sleeve rod 22. One end of the sleeve 23 is tightly pressed against the template 21 and fixedly connected with a cutter 24. When the sleeve 23 rotates, the cutter 24 cuts the long strip material into uniform particles. The output shaft of the second motor 61 drives the sleeve 23 to rotate through a synchronous belt, thereby driving the cutter 24 to work.

[0053] A cooling mechanism 3 is provided in the pelletizing mechanism 2. The cooling mechanism 3 is mainly composed of a condenser 31, which is arranged in an S shape in the pelletizing mechanism 2. This design can increase the cooling area and improve the cooling efficiency. A water inlet 32 ​​and a water outlet 33 are provided on the side wall of the condenser 31 passing through the pelletizing mechanism 2. By passing a cold fluid into the condenser 31, the heat of the pellets can be taken away, so that the pellets are quickly cooled and solidified.

[0054] The scraper mechanism 4 includes a scraper plate 41, and a plurality of sliding holes are formed on the scraper plate 41. The condenser tube 31 is inserted into the sliding holes and is slidably connected to the scraper plate 41. The scraper plate 41 moves in the pelletizing mechanism 2 through the combined structure of the moving block 42 and the threaded rod 45. When the first motor 46 is started, its output shaft drives the second gear 461 to rotate, and then drives the first gear 451 and the threaded rod 45 to rotate through gear meshing. The rotation of the threaded rod 45 is converted into a linear motion of the moving block 42 in the moving groove 43, thereby driving the scraper plate 41 to move and clean the attachments on the outer wall of the condenser tube 31.

[0055] In order to further enhance the cooling effect, an air inlet 5 is further provided at the bottom of the pelletizing mechanism 2 for introducing cold air. The cold air flows inside the pelletizing mechanism 2, exchanges heat with the pellets and the condensation tube 31, further removes heat, and accelerates the cooling process of the pellets.

[0056] An anti-blocking mechanism 7 is provided at the outlet. The anti-blocking mechanism 7 includes a first rotating roller 71 and a second rotating roller 72, and a plurality of breaking blocks 73 are provided on the sides of the first rotating roller 71 and the second rotating roller 72. When the first rotating roller 71 and the second rotating roller 72 rotate, the breaking blocks 73 will break up the accumulated materials and push them to move toward the outlet, thereby effectively preventing blockage. The output shaft of the third motor 74 is connected to the third gear 711. After the third motor 74 is started, the first rotating roller 71 and the second rotating roller 72 will rotate synchronously through the transmission relationship of the gears.

[0057] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A bamboo powder biodegradable material granulation device based on cold fluid cooling, comprising an extruder body (1) and a granulation mechanism (2), characterized in that: The pelletizing mechanism (2) is arranged at one end of the extrusion port of the extruder body (1); a template (21) is arranged in the pelletizing mechanism (2), the template (21) is aligned with the extrusion port of the extruder body (1), a plurality of through holes are opened on the template (21), and after the material is extruded through the extruder body (1), a plurality of long strips of material are formed through the through holes on the template (21); a sleeve rod (22) is arranged at the center of the template (21), a sleeve (23) is arranged on the sleeve rod (22), one end of the sleeve (23) is tightly pressed against the template (21) and fixedly connected with a cutter (24); a cooling mechanism (3) is arranged in the pelletizing mechanism (2), the cooling mechanism (3) comprises a condenser (31) arranged in the pelletizing mechanism (2), the condenser (31) is arranged in an S shape in the pelletizing mechanism (2), and a water inlet (32) and a water outlet (33) are arranged on the part where the condenser (31) passes through the side wall of the pelletizing mechanism (2) and extends outwards.

2. The bamboo powder biodegradable material granulation device based on cold fluid cooling according to claim 1 is characterized in that: The condenser tube (31) is provided with a scraper mechanism (4); the scraper mechanism (4) comprises a scraper plate (41) arranged in the pelletizing mechanism (2); the scraper plate (41) is provided with a plurality of sliding holes, and the condenser tube (31) is inserted into the sliding holes and is slidably connected to the scraper plate (41).

3. The bamboo powder biodegradable material granulation device based on cold fluid cooling according to claim 2 is characterized in that: The scraper plate (41) is provided with a moving block (42), the top of the pelletizing mechanism (2) is provided with a moving groove (43), the moving block (42) is slidably mounted in the moving groove (43) and passes through the top of the pelletizing mechanism (2); a threaded hole is provided at the portion of the moving block (42) passing through the pelletizing mechanism (2); mounting platforms (44) are provided on both sides of the top of the pelletizing mechanism (2), the mounting platform (44) is provided with a mounting hole, a threaded rod (45) is passed through the mounting hole, the threaded rod (45) is threadedly connected to the moving block (42) through the threaded hole, and a first gear (451) is coaxially arranged at one end of the threaded rod (45); a first motor (46) is provided on the side of the mounting platform (44) at the top of the pelletizing mechanism (2), the output shaft of the first motor (46) is connected to a second gear (461), and the first gear (451) is meshingly connected to the second gear (461).

4. The bamboo powder biodegradable material granulation device based on cold fluid cooling according to claim 3 is characterized in that: An anti-falling block is provided at one end of the threaded rod (45) away from the first gear (451) to prevent the threaded rod (45) from falling off the mounting platform (44).

5. The bamboo powder biodegradable material granulation device based on cold fluid cooling according to claim 1, characterized in that: The bottom of the pelletizing mechanism (2) is provided with an air inlet (5) for cold air to enter.

6. The bamboo powder biodegradable material granulation device based on cold fluid cooling according to claim 1, characterized in that: A driving mechanism (6) is installed at the top end of the pelletizing mechanism (2), wherein the driving mechanism (6) comprises a second motor (61), wherein an output shaft of the second motor (61) is connected to a rotating shaft, and the rotating shaft drives the sleeve (23) to rotate via a synchronous belt.

7. The bamboo powder biodegradable material granulation device based on cold fluid cooling according to claim 1, characterized in that: A material outlet is provided at the bottom of the pelletizing mechanism (2), and an anti-blocking mechanism (7) is provided at the material outlet; the anti-blocking mechanism (7) comprises a first rotating roller (71) and a second rotating roller (72) provided at the material outlet, and a plurality of breaking blocks (73) are provided on the sides of the first rotating roller (71) and the second rotating roller (72) to prevent material accumulation.

8. The bamboo powder biodegradable material granulation device based on cold fluid cooling according to claim 7, characterized in that: The portion of the rotating shaft of the first rotating roller (71) that passes through the pelletizing mechanism (2) is fixedly connected to a third gear (711), and the portion of the rotating shaft of the second rotating roller (72) that passes through the pelletizing mechanism (2) is fixedly connected to a fourth gear (721), and the third gear (711) and the fourth gear (721) are meshingly connected; a third motor (74) is provided at a position corresponding to the position of the third gear (711) on the outside of the pelletizing mechanism (2), and an output shaft of the third motor (74) is fixedly connected to the third gear (711).

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