PETG slice solid-phase tackifying reactor

Abstract

The invention discloses a PETG slice solid-phase tackifying reactor, and belongs to the technical field of polyester slice processing, the PETG slice solid-phase tackifying reactor comprises an outer cylinder, the upper and lower parts of the outer cylinder are respectively provided with a feeding pipe and a discharging pipe, the side surface of the outer cylinder is provided with supporting legs, and the outer cylinder is internally provided with a bearing cylinder and four movable inner cylinders; connecting rings are connected between the bearing cylinder and the movable inner cylinders and between the adjacent movable inner cylinders. According to the invention, full and uniform heat exchange between each slice and a thermal medium is ensured, heating dead angles and temperature difference in traditional equipment are eliminated, and based on the synergistic effect of uniform dispersion, controllable blanking and a three-dimensional thermal field, the raw materials can be subjected to tackifying reaction in an optimal state in the reactor; therefore, the uniformity and thoroughness of the reaction are ensured, and the quality problems of viscosity difference, yellowing and the like of slices caused by non-uniform heating or different reaction time are effectively avoided, so that the product quality, the production efficiency and the batch stability of the final PETG slices are remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of polyester chip processing technology, and particularly relates to a solid-phase thickening reactor for PETG chips. Background Technology

[0002] High-viscosity polyester chips are the raw material for producing polyester industrial yarns. Low-viscosity polyester chips can be obtained through solid-state polycondensation to produce high-viscosity polyester chips with high intrinsic viscosity and high molecular weight.

[0003] Currently, most continuous solid-phase thickening equipment for polyester chips uses large, vertical reactors. Among these, the packed reactor uses inert gases such as nitrogen as the heating medium. The gas is blown in from the bottom of the reactor, transferring heat to the material. Mechanisms are installed within the reactor to impede the material's fall, causing it to fall and disperse to some extent, while also slowing its descent. However, the degree of dispersion is uncontrollable, and the falling process takes a fixed time, making it impossible to flexibly adjust the falling speed according to changes in material size. This necessitates equipment replacement to resolve the issue.

[0004] Based on this, the present invention designs a PETG slice solid-phase thickening reactor to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a PETG slice solid-phase thickening reactor in order to solve the problems mentioned above in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A solid-phase viscosity-enhancing reactor for PETG chips includes an outer cylinder with an inlet pipe and an outlet pipe installed at the top and bottom, respectively. Support legs are installed on the side of the outer cylinder. Inside the outer cylinder, there is a support cylinder and four movable inner cylinders. Connecting rings connect the support cylinder to the movable inner cylinders and to adjacent movable inner cylinders. Connecting holes are provided on both sides of the outer cylinder corresponding to the movable inner cylinders. Connecting covers are installed on the four connecting holes on the left and the two connecting holes in the middle of the right side. A first gas cover is installed on the lower right connecting hole, and a second gas cover is installed on the upper right connecting hole. A heater is connected to the right side of the first gas cover, and a circulating fan is installed on the right side of the heater. A central pipe is connected to the side of the circulating fan. The end of the tube is connected to a purifier, which is connected to a second air hood. Movable holes are provided on both sides of the outer cylinder corresponding to the position of the bearing cylinder. Sliding support mechanisms are installed on both sides of the bearing cylinder and the movable inner cylinder. Each sliding support mechanism includes two mounting seats installed outside the bearing cylinder. A sliding sleeve is connected through the front of each mounting seat, and a support rod is slidably connected inside the sliding sleeve. Both ends of the support rod are fixedly connected to connecting seats installed outside the outer cylinder. Contact pads are installed on the back of both the bearing cylinder and the movable inner cylinder. A vibration mechanism is provided on the back of the outer cylinder. Mounting holes are provided on the sides of the movable inner cylinder, and baffles are installed in the mounting holes. The baffles are inverted V-shaped. A bearing mesh plate is installed at the lower end of the inner wall of the bearing cylinder.

[0008] As a further description of the above technical solution: The outer cylinder has a central hole on its back corresponding to the position of the vibration mechanism. The vibration mechanism is used to apply a thrust to the contact pad, the movable inner cylinder and the bearing cylinder, so that the movable inner cylinder and the bearing cylinder vibrate in the horizontal direction. The vibration mechanism includes a motor fixedly connected to the back of the outer cylinder. The output shaft of the motor is fixedly connected to a cam, which is used to squeeze the contact pad through the central hole.

[0009] As a further description of the above technical solution: The mounting hole is triangular, and the angle of the top of the baffle is set to 35 degrees-55 degrees.

[0010] As a further description of the above technical solution: A pressure sensor is installed on the upper side of the inner wall of the sliding sleeve, and the pressure sensor is located on the support rod.

[0011] As a further description of the above technical solution: Two sealing rings are fixedly installed on the outside of the movable inner cylinder. The sealing rings are located on the inner wall of the outer cylinder, and the two sealing rings are located on the upper and lower sides of the corresponding connection hole, respectively.

[0012] As a further description of the above technical solution: A sealing gasket is installed on the bearing cylinder and is located on the inner wall of the outer cylinder. A sealing plate is fixedly installed on the outer surface of the mounting base outside the bearing cylinder and is located on the outer surface of the outer cylinder. The sealing plate is used to seal the movable hole during the movement of the mounting base.

[0013] As a further description of the above technical solution: The bearing cylinder is equipped with three rotating striking devices located below the feed pipe. Each rotating striking device includes a rotating shaft, a striking rod fixedly connected to the outside of the rotating shaft, and two bearings rotatably connected to the outside of the rotating shaft. The bearings are installed inside the bearing cylinder. A gear is fixedly connected to the left end of the rotating shaft, and a rack meshes with the three gears. The rack is installed on the inner wall of the outer cylinder.

[0014] As a further description of the above technical solution: The support mesh plate is equipped with protrusions, which rub the raw materials on the support mesh plate apart when the support mesh plate moves horizontally.

[0015] As a further description of the above technical solution: A heating plate is installed inside the connecting cover to heat the gas flowing upward through the connecting cover.

[0016] As a further description of the above technical solution: The connecting ring is made of rubber and contains nylon or metal wire.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, the bearing cylinder and the movable inner cylinder are driven to shake synchronously by a vibration mechanism, which, together with the bearing mesh plate, allows the polyester chip raw material to be fully and evenly dispersed before entering the heating zone. Meanwhile, the reciprocating baffles along the falling path continuously collide with the raw materials, effectively slowing down their descent speed and enabling precise control over the residence time of the raw materials in the reaction zone. This prevents the accumulation or instantaneous passage of raw materials. The circulating fan introduces hot air into the movable inner cylinder through a specific air passage structure, forming an airflow that flows upward along the inner wall of the connecting cover. This design not only achieves through-heating of the raw materials but also constructs a three-dimensional thermal field surrounding them, ensuring that each slice can fully and uniformly exchange heat with the heat medium. This eliminates the heating "dead zones" and temperature differences found in traditional equipment. Based on the synergistic effect of uniform dispersion, controllable feeding, and the three-dimensional thermal field, the raw materials can undergo a thickening reaction in the reactor in the optimal state. This ensures the uniformity and thoroughness of the reaction, effectively avoiding quality problems such as slice viscosity differences and yellowing caused by uneven heating or inconsistent reaction times. This significantly improves the final product quality, production efficiency, and batch stability of PETG slices.

[0018] 2. In this invention, the traditional reactor has a constant feeding speed, which cannot adapt to the varying heating time requirements of raw materials of different sizes, easily leading to overheating of small materials and underheating of large materials. This invention uses a motor-driven cam mechanism to precisely control the vibration frequency of the moving inner cylinder and baffles. This frequency directly determines the number of collisions and residence time of the raw material on the baffles, thereby achieving continuous and precise adjustment of the raw material's falling speed. Operators can adjust the cam speed according to the specific size of the raw material to set the optimal falling speed for different batches of raw materials. This ensures that regardless of the size of the raw material, it can obtain the same and sufficient effective heating time in the reactor, thus avoiding quality problems such as viscosity differences and yellowing caused by uneven heating, and ensuring the high uniformity of the final product. This solution, while ensuring sufficient heating, avoids unnecessary overheating through precise control, which not only shortens the overall reaction cycle and improves production efficiency, but also effectively saves energy consumption, achieving a dual improvement in economic benefits and production quality.

[0019] 3. In this invention, a pressure sensor is integrated into the movable inner cylinder, which can monitor the total weight of the cylinder and the raw materials inside in real time. When the raw materials are stuck or blocked due to adhesion or accumulation, the weight detected by the sensor will exceed the preset normal fluctuation range, thereby achieving early and accurate judgment of the blockage. Once a blockage trend is detected, the control system will automatically adjust the rotation frequency of the drive motor, thereby increasing the shaking frequency and amplitude of the movable inner cylinder and the baffle. This enhanced mechanical vibration can effectively shake off the adhered raw materials, clear the blocked channels, and restore the feeding speed to normal. The whole process does not require manual intervention, forming an intelligent closed-loop control of "detection-judgment-execution-recovery". This intelligent anti-blockage mechanism fundamentally avoids downtime for cleaning due to blockage, significantly improves the operational stability and production continuity of the equipment, and ensures that the raw materials are fully and uniformly heated while ensuring smooth material flow, thereby maximizing the overall efficiency of the solid-phase thickening reaction and providing a reliable guarantee for continuous and automated production.

[0020] 4. In this invention, the reciprocating linear motion of the bearing cylinder is combined with the rotational motion of the striking rod. During the forward movement, the striking rod is driven to rotate at high speed through gear and rack meshing, powerfully striking the falling raw material and initially breaking up any clumps. During the backward retraction and reset process, the protrusions on the bearing cylinder will rub the raw material on the bearing mesh plate in the opposite direction, further spreading it out. This combined action of striking followed by rubbing can effectively handle raw materials in various states. Even slightly clumped polyester chips can be completely dispersed. After this pretreatment, the raw material can be spread on the bearing mesh plate in a highly uniform, loose single layer or thin layer, making it ideally ready to enter the heating zone. Uniformly dispersed raw material is a prerequisite for uniform heating. This design solves the problem of raw material clumping and uneven accumulation from the source, ensuring that each chip receives hot air treatment at a similar state and speed when falling into the movable inner cylinder. This greatly improves the uniformity and overall efficiency of the subsequent solid-phase thickening reaction, ultimately significantly improving the thickening treatment effect and product quality of PETG chips. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a PETG slice solid-phase thickening reactor proposed in this invention; Figure 2 This is a rear-view three-dimensional structural diagram of the outer cylinder of a PETG slice solid-phase thickening reactor proposed in this invention; Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the outer cylinder of a PETG slice solid-phase thickening reactor proposed in this invention; Figure 4 This is a top view cross-sectional structural diagram of the outer cylinder of a PETG slice solid-phase thickening reactor proposed in this invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the movable inner cylinder of a PETG slice solid-phase thickening reactor proposed in this invention; Figure 6 This invention proposes a solid-phase thickening reactor for PETG chips. Figure 3 Enlarged structural diagram of section A; Figure 7 This invention proposes a solid-phase thickening reactor for PETG chips. Figure 3 Enlarged structural diagram of section B; Figure 8 This invention proposes a solid-phase thickening reactor for PETG chips. Figure 3 Enlarged structural diagram of section C; Figure 9 This invention proposes a solid-phase thickening reactor for PETG chips. Figure 2 Enlarged structural diagram of section D in the middle; Figure 10This is a three-dimensional structural diagram of a sealing plate for a PETG slice solid-phase thickening reactor proposed in this invention; Figure 11 This is a three-dimensional structural diagram of the rotating impact device for a PETG slice solid-phase thickening reactor proposed in this invention.

[0022] Legend: 1. Outer cylinder; 2. Feed pipe; 3. Support leg; 4. Discharge pipe; 5. Bearing cylinder; 6. Movable inner cylinder; 7. Connecting ring; 8. Sliding support mechanism; 81. Mounting base; 82. Sliding sleeve; 83. Support rod; 84. Connecting base; 85. Pressure sensor; 9. Connecting hole; 10. Connecting cover; 11. Heating plate; 12. Mounting hole; 13. Baffle; 14. Sealing ring; 15. First air hood; 16. Heater; 17. Circulating fan; 18. Intermediate pipe; 19. Purifier; 20. Second air hood; 21. Bearing mesh plate; 22. Protrusion; 23. Sealing plate; 24. Sealing gasket; 25. Rotary impact device; 251. Rotating shaft; 252. Impact rod; 253. Bearing; 254. Gear; 255. Rack; 26. Movable hole; 27. Vibration mechanism; 271. Motor; 272. Cam; 28. Intermediate hole; 29. ​​Contact pad. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see the appendix Figure 1 -Appendix Figure 11This invention provides a technical solution: a solid-phase thickening reactor for PETG chips, comprising an outer cylinder 1, with an inlet pipe 2 and an outlet pipe 4 installed at the top and bottom of the outer cylinder 1 respectively. Support legs 3 are installed on the side of the outer cylinder 1. Inside the outer cylinder 1, there is a supporting cylinder 5 and four movable inner cylinders 6. Connecting rings 7 connect the supporting cylinder 5 to the movable inner cylinders 6 and between adjacent movable inner cylinders 6. Connecting holes 9 are opened on the left and right sides of the outer cylinder 1 corresponding to the movable inner cylinders 6. Connecting covers 10 are installed outside the four connecting holes 9 on the left and the two connecting holes 9 in the middle of the right side. A first gas cover 15 is installed outside the connecting hole 9 on the lower right side, and a second gas cover 20 is installed outside the connecting hole 9 on the upper right side. A heater 16 is connected to the right side of the first gas cover 15, and a circulating fan 17 is installed to the right side of the heater 16. A middle pipe 18 is connected to the side of the circulating fan 17. The end of the intermediate tube 18 is connected to the purifier 19, which is connected to the second air hood 20. The left and right sides of the outer cylinder 1 are provided with movable holes 26 corresponding to the positions of the bearing cylinder 5. The left and right sides of the bearing cylinder 5 and the movable inner cylinder 6 are provided with sliding support mechanisms 8. The sliding support mechanism 8 includes two mounting seats 81 installed outside the bearing cylinder 5. The front of the mounting seat 81 is connected to a sliding sleeve 82. The sliding sleeve 82 is slidably connected to the support rod 83. Both ends of the support rod 83 are fixedly connected to the connecting seats 84 installed outside the outer cylinder 1. The back of the bearing cylinder 5 and the movable inner cylinder 6 are provided with contact pads 29. The back of the outer cylinder 1 is provided with a vibration mechanism 27. The side of the movable inner cylinder 6 is provided with a mounting hole 12. The mounting hole 12 is provided with a baffle 13 installed in the mounting hole 12. The baffle 13 is designed as an inverted V. The lower end of the inner wall of the bearing cylinder 5 is provided with a bearing mesh plate 21.

[0025] Polyester chips are injected into the outer cylinder 1 through the feed pipe 2. The vibration mechanism 27 compresses the contact pad 29, the supporting cylinder 5, and the movable inner cylinder 6, causing them to move forward. Simultaneously, the circulating fan 17 heats the gas through the heater 16. The hot gas flows into the movable inner cylinder 6 through the first air hood 15, the connecting hole 9, and the mounting hole 12. The gas in the movable inner cylinder 6 passes through the inner cylinder 6 and enters the opposing connecting hood 10, simultaneously flowing upwards along the inner wall of the connecting hood 10. This flowing gas passes over the falling raw material, achieving heat treatment of the raw material. At the same time, the shaking supporting cylinder 5 and the supporting mesh plate 21 vibrate the raw material to a certain extent, ensuring that the raw material is more evenly dispersed. On the support mesh plate 21, the raw material falls more evenly into the movable inner cylinder 6, making the material enter the movable inner cylinder 6 more uniformly. This allows the raw material to come into uniform contact with the hot air, ensuring a more uniform and efficient heating process. Furthermore, the raw material flowing through the movable inner cylinder 6 falls onto the baffle plate 13. The back-and-forth swaying baffle plate 13 collides with the falling raw material. The inclined surface of the baffle plate 13 causes the raw material to collide with the material repeatedly. The material does not fall instantly, thus allowing the falling speed of the raw material to be controlled and adjusted. This ensures that the raw material is heated more evenly and efficiently in the movable inner cylinder 6, guaranteeing a more efficient thickening reaction process for the polyester chips.

[0026] A central hole 28 is provided on the back of the outer cylinder 1 corresponding to the position of the vibration mechanism 27. The vibration mechanism 27 is used to apply a thrust to the contact pad 29, the movable inner cylinder 6 and the bearing cylinder 5, so that the movable inner cylinder 6 and the bearing cylinder 5 vibrate in the horizontal direction. The vibration mechanism 27 includes a motor 271 fixedly connected to the back of the outer cylinder 1. The output shaft of the motor 271 is fixedly connected to a cam 272. The cam 272 is used to squeeze the contact pad 29 through the central hole 28.

[0027] Different sizes of raw materials require different heating times. Larger raw materials require longer heating times. If the feeding speed is constant, raw materials of different sizes will take the same amount of time to heat through the reactor, which may result in insufficient heating or overheating. The raw materials fall through the support mesh plate 21 into the movable inner cylinder 6, where they are heated by the flowing hot air until they flow out after heating. At the same time, the rotation of the motor 271 controls the rotation of the cam 272. When the cam 272 rotates, it squeezes the contact pad 29, the support cylinder 5, and the movable inner cylinder 6 to move forward. The cam 272 is controlled to move forward. The rotation speed of 2 can adjust the squeezing frequency of cam 272 on contact pad 29, bearing cylinder 5 and movable inner cylinder 6. The raw material flowing through the movable inner cylinder 6 falls on baffle 13. The back-and-forth shaking baffle 13 collides with the falling raw material, so that the raw material is repeatedly collided on the inclined surface of baffle 13. The collided raw material will not fall instantly. The falling speed of the raw material will also be different depending on the shaking frequency of baffle 13. It is convenient to adjust the feeding speed of the raw material according to the size of the raw material. While ensuring sufficient heating of the raw material, the heating efficiency is also guaranteed, making the thickening reaction efficiency of polyester chips higher.

[0028] The mounting hole 12 is triangular, and the angle of the top of the baffle 13 is set to 35 degrees-55 degrees.

[0029] The angle of the baffle 13 is set to 35-55 degrees. The inclined surface can be used to block and rebound the falling raw material to a certain extent. If the angle of the inclined surface is too small, the raw material will fall quickly. If the angle of the inclined surface is too large, the raw material will be excessively rebounded, affecting the falling of the raw material. This makes it easier to control the falling speed of the raw material, making the heating efficiency of the raw material itself higher and the thickening reaction efficiency of the polyester chips higher.

[0030] A pressure sensor 85 is installed on the upper side of the inner wall of the sliding sleeve 82, and the pressure sensor 85 is located on the support rod 83.

[0031] The raw material falls through the movable inner cylinder 6 and is heated by hot air. Simultaneously, the cam 272 rotates under the control of the motor 271. As the cam 272 presses against the contact pad 29 and the movable inner cylinder 6, causing them to sway horizontally, the pressure sensor 85 detects the weight of the movable inner cylinder 6 and the raw material inside, determining whether the four movable inner cylinders 6 are in a state of uniform weight. If the weight of one movable inner cylinder 6 is too high, it indicates that the raw material is being fed at a slow speed, resulting in a large weight. At this time, the frequency of the motor 271 is reduced, which reduces the swaying frequency of the baffle 13, thereby increasing the falling speed of the raw material and adjusting the weight of the four movable inner cylinders 6 to a uniform state. This ensures that the raw material is heated fully and efficiently, resulting in higher heating treatment efficiency and ensuring the thickening reaction efficiency of the polyester chips.

[0032] Two sealing rings 14 are fixedly installed on the outer side of the movable inner cylinder 6. The sealing rings 14 are located on the inner wall of the outer cylinder 1, and the two sealing rings 14 are located on the upper and lower sides of the corresponding connection hole 9 respectively.

[0033] The raw material falls through the movable inner cylinder 6, and the circulating fan 17 controls the gas to enter the movable inner cylinder 6. The hot gas heats the raw material inside the movable inner cylinder 6. The sealing ring 14 seals the part between the movable inner cylinder 6 and the outer cylinder 1. The gas enters the movable inner cylinder 6 through the connecting hole 9. The gas will not flow through the sealing ring 14 into the space between the outer cylinder 1 and the movable inner cylinder 6. The sealing ring 14 can deform to a certain extent, so that the connection between the two can still be maintained while the movable inner cylinder 6 moves. This ensures the sealing of the movable inner cylinder 6 during its movement and the smooth flow of gas, ensuring the smooth heating of the raw material inside the reactor. The heating effect is guaranteed, further ensuring the overall energy saving effect and the efficiency of the thickening reaction.

[0034] A sealing gasket 24 is installed on the bearing cylinder 5. The sealing gasket 24 is located on the inner wall of the outer cylinder 1. A sealing plate 23 is fixedly installed on the outer surface of the mounting seat 81 outside the bearing cylinder 5. The sealing plate 23 is located on the outer surface of the outer cylinder 1 and is used to seal the movable hole 26 during the movement of the mounting seat 81.

[0035] The sealing gasket 24 improves the sealing performance between the bearing cylinder 5 and the outer cylinder 1. Even when the bearing cylinder 5 moves back and forth, the sealing effect between the two can still be guaranteed. The sealing plate 23 can block the connection hole 9. While the bearing cylinder 5 and the mounting base 81 slide back and forth, the connection hole 9 is blocked. This ensures that the bearing cylinder 5 can move and has good sealing performance, making it difficult for hot air to leak. It ensures that the heat is fully and efficiently heated to the raw materials and avoids energy waste.

[0036] The bearing cylinder 5 is equipped with three rotating striking devices 25, which are located below the feed pipe 2. Each rotating striking device 25 includes a rotating shaft 251, a striking rod 252 fixedly connected to the outside of the rotating shaft 251, and two bearings 253 rotatably connected to the outside of the rotating shaft 251. The bearings 253 are installed inside the bearing cylinder 5. A gear 254 is fixedly connected to the left end of the rotating shaft 251. A rack 255 is meshed with the three gears 254. The rack 255 is installed on the inner wall of the outer cylinder 1.

[0037] When the motor 271 rotates, it controls the cam 272 to rotate. When the cam 272 rotates, it squeezes the contact pad 29 and the bearing cylinder 5 to move forward. At the same time, the bearing cylinder 5 moves forward, driving the gear 254 to move forward. During the movement of the gear 254, it meshes with the rack 255, thereby controlling the rotation of the gear 254, the rotating shaft 251 and the striking rod 252. The raw material falling from the feed pipe 2 passes through the rotating striking rod 252. During the rotation of the striking rod 252, it strikes the raw material, causing the raw material to fall evenly onto the bearing mesh plate 21. After being struck and rubbed, the raw material falls evenly onto the bearing mesh plate 21, making the raw material more evenly distributed when it falls into the movable inner cylinder 6. This ensures that the raw material is heated evenly and efficiently, ensuring the processing efficiency of the raw material and making the thickening treatment efficiency and effect of the polyester chips better.

[0038] The support mesh plate 21 is equipped with protrusions 22, which rub the raw material on the support mesh plate 21 apart when the support mesh plate 21 moves horizontally.

[0039] The cam 272 is rotated by the motor 271. The cam 272 presses the contact pad 29 and the bearing cylinder 5 to move. At this time, the protrusion 22 and the bearing mesh plate 21 move horizontally. During the movement of the protrusion 22, it impacts the raw material on the bearing mesh plate 21. The impact on the raw material makes the raw material fully and evenly spread on the bearing mesh plate 21. When the raw material falls through the bearing mesh plate 21 into the movable inner cylinder 6, it spreads evenly, so that the raw material can fall more fully and evenly on the baffle 13. This facilitates the uniform and efficient heating treatment of the raw material, ensures the processing efficiency of the raw material, and makes the thickening treatment efficiency and effect of polyester chips better.

[0040] A heating plate 11 is installed inside the connecting cover 10 to heat the gas flowing upward through the connecting cover 10.

[0041] During the process of the raw material falling into the reactor, the heat from the hot air is transferred to the raw material as it is heated. Simultaneously, the temperature of the hot air decreases, reducing the heating effect on the raw material after reflection by the connecting shroud 10. As the raw material passes through the reactor, it is heated by the hot air. The hot air flows through the movable inner cylinder 6 and then into the connecting shroud 10. During this process, the heating plate 11 reheats the gas, maintaining a relatively constant temperature within the connecting shroud 10. This ensures that the hot air maintains its heating effect on the raw material as it flows through the movable inner cylinder 6, resulting in more thorough and efficient heating of the raw material and higher efficiency in the thickening treatment of polyester chips.

[0042] The connecting ring 7 is made of rubber and contains nylon or metal wire.

[0043] The connecting ring 7 is made of high-temperature resistant rubber, such as silicone rubber or fluororubber. The high-temperature resistance ensures that the connecting ring 7 will not easily melt or deform when the raw material is heated by hot air. The use of nylon or metal wire increases the toughness of the connecting ring 7, ensuring that it will not easily break during repeated compression and deformation, thus ensuring the normal service life of the connecting ring 7. This allows the connecting ring 7 to maintain the connection and sealing effect between two adjacent movable inner cylinders 6, ensuring that the movable inner cylinder 6 can maintain the connection with other movable inner cylinders 6 while being squeezed and moved, so that the raw material falls smoothly.

[0044] Working principle and usage: First, the heater 16, heating plate 11, circulating fan 17, and motor 271 are controlled to operate. Simultaneously, polyester chips are injected into the outer cylinder 1 as raw material through the feed pipe 2. When the motor 271 rotates, the cam 272 is controlled to rotate. When the cam 272 rotates, it squeezes the contact pad 29, the bearing cylinder 5, and the movable inner cylinder 6 to move forward. As the bearing cylinder 5 moves forward, it drives the gear 254 to move forward. During the movement of the gear 254, it meshes with the rack 255, thereby controlling the rotation of the gear 254, the rotating shaft 251, and the striking rod 252. The raw material falling from the feed pipe 2 passes through the rotating striking rod 252. 52. During the rotation of the striking rod 252, the raw material is struck, causing it to fall evenly onto the supporting mesh plate 21. After the cam 272 separates from the contact pad 29, the rubber connecting ring 7, relying on its own restoring force, controls the supporting cylinder 5 and the movable inner cylinder 6 to return to their original position and move backward. Then, the cam 272 continues to rotate and continuously squeezes the contact pad 29, thereby controlling the movable inner cylinder 6 and the supporting cylinder 5 to perform back-and-forth reciprocating movements. During the back-and-forth reciprocating movement of the supporting cylinder 5, the protrusion 22 is used to rub and spread the raw material on the supporting mesh plate 21, so that the raw material is evenly placed on the supporting mesh plate 21 after being struck and rubbed. The raw material falling through the support mesh plate 21 lands on the baffle plate 13. The inclined surface of the baffle plate 13 blocks the raw material falling from above. At the same time, the baffle plate 13, which swings back and forth, collides and bounces the raw material. By controlling the frequency of the back and forth swing of the baffle plate 13, the impact frequency on the raw material can be controlled, thereby adjusting the falling speed of the raw material. When the circulating fan 17 is running, the gas is heated by the heater 16. The hot gas flows into the movable inner cylinder 6 through the first air cover 15, the connecting hole 9, and the mounting hole 12. The gas in the movable inner cylinder 6 passes through the movable inner cylinder 6 and enters the opposite connecting cover 10. At the same time, it flows upward along the inner wall of the connecting cover 10. The temperature of the gas that has been heated by the raw material in the movable inner cylinder 6 will gradually decrease. At the same time, the heating plate 11 is controlled to work to reheat the gas flowing through the connecting cover 10. After multiple reflections and heating of the raw material, the gas flows into the second gas hood 20. The gas in the second gas hood 20 flows through the purifier 19, where impurities in the gas are separated and treated, so that the gas drawn in again by the circulating fan 17 remains clean. After being fully and evenly heated, the raw material passes through the movable inner cylinder 6 and the outer cylinder 1, and is discharged through the discharge pipe 4.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A PETG chip solid-phase tackifying reactor comprising an outer cylinder (1), characterized in that, The outer cylinder (1) is respectively provided with an inlet pipe (2) and an outlet pipe (4) at the upper and lower positions, and is provided with supporting legs (3) at the left and right sides, and is internally provided with a bearing cylinder (5) and four movable inner cylinders (6), and the bearing cylinder (5) and the movable inner cylinders (6) are connected with connecting rings (7), and the left and right sides of the outer cylinder (1) are provided with connecting holes (9) corresponding to the positions of the movable inner cylinders (6), and the left four connecting holes (9) and the right two connecting holes (9) are externally provided with connecting covers (10), and the lower right connecting hole (9) is externally provided with a first gas cover (15), and the upper right connecting hole (9) is externally provided with a second gas cover (20), and the right side of the first gas cover (15) is communicated with a heater (16), and the right side of the heater (16) is provided with a circulating fan (17), and the side of the circulating fan (17) is communicated with an intermediate pipe (18), and the end of the intermediate pipe (18) is communicated with a purifier (19), and the purifier (19) is communicated with the second gas cover (20), and the left and right sides of the outer cylinder (1) are provided with movable holes (26) corresponding to the positions of the bearing cylinder (5), and the left and right sides of the bearing cylinder (5) and the movable inner cylinders (6) are provided with sliding support mechanisms (8), and the sliding support mechanisms (8) comprise two mounting seats (81) mounted on the outside of the bearing cylinder (5), and the front of the mounting seat (81) is penetratedly connected with a sliding sleeve (82), and the sliding sleeve (82) is slidably connected with a supporting rod (83), and the two ends of the supporting rod (83) are fixedly connected with connecting seats (84) mounted on the outside of the outer cylinder (1), and the back of the bearing cylinder (5) and the movable inner cylinders (6) are provided with contact pads (29), and the back of the outer cylinder (1) is provided with a vibrating mechanism (27), and the side of the movable inner cylinder (6) is provided with a mounting hole (12), and the mounting hole (12) is provided with a baffle (13), and the baffle (13) is provided in an inverted V shape, and the lower end of the inner wall of the bearing cylinder (5) is provided with a bearing mesh (21).

2. A PETG chip solid-phase tackification reactor according to claim 1, characterized in that, The back of the outer cylinder (1) is provided with an intermediate hole (28) corresponding to the position of the vibrating mechanism (27), and the vibrating mechanism (27) is used for applying a thrust force to the contact pad (29), the movable inner cylinder (6) and the bearing cylinder (5) to make the movable inner cylinder (6) and the bearing cylinder (5) vibrate horizontally, and the vibrating mechanism (27) comprises a motor (271) fixedly connected to the back of the outer cylinder (1), and the output shaft of the motor (271) is fixedly connected with a cam (272), and the cam (272) is used for extruding the contact pad (29) through the intermediate hole (28).

3. The PETG chip solid-phase tackification reactor according to claim 1, characterized in that, The mounting hole (12) is provided in a triangular shape, and the angle of the top end of the baffle (13) is provided as 35-55 degrees.

4. The PETG chip solid-phase tackification reactor according to claim 1, characterized in that, The inner wall of the sliding sleeve (82) is provided with a pressure sensor (85) on the upper side, and the pressure sensor (85) is arranged on the supporting rod (83).

5. The PETG chip solid-phase tackification reactor according to claim 1, characterized in that, The movable inner cylinder (6) is externally fixedly provided with two sealing rings (14), which are arranged on the inner wall of the outer cylinder (1) and are respectively located on the upper and lower sides of the corresponding connecting holes (9).

6. The PETG chip solid-phase tackification reactor according to claim 1, characterized in that, The bearing cylinder (5) is provided with a sealing washer (24), which is arranged on the inner wall of the outer cylinder (1). The mounting seat (81) outside the bearing cylinder (5) is externally fixedly provided with a blocking plate (23), which is arranged on the outer surface of the outer cylinder (1) and is used for sealing the movable hole (26) during the movement of the mounting seat (81).

7. The PETG chip solid-phase tackification reactor according to claim 1, characterized in that, The bearing cylinder (5) is internally provided with three rotating and hitting devices (25), which are located below the feeding pipe (2). The rotating and hitting device (25) comprises a rotating shaft (251), the outer end of which is fixedly connected with a hitting rod (252), and the outer end of the rotating shaft (251) is rotatably connected with two bearings (253), which are arranged in the bearing cylinder (5). The left end of the rotating shaft (251) is fixedly connected with a gear (254), and three gears (254) are meshed with a gear rack (255), which is arranged on the inner wall of the outer cylinder (1).

8. The PETG chip solid-phase tackification reactor according to claim 1, characterized in that, The bearing net plate (21) is provided with a protrusion (22), which can rub the raw materials on the bearing net plate (21) when the bearing net plate (21) moves in the horizontal direction.

9. The PETG chip solid-phase tackification reactor according to claim 1, characterized in that, The connecting cover (10) is internally provided with a heating plate (11), which is used for heating the gas flowing upwards through the connecting cover (10).

10. The PETG chip solid-phase tackification reactor according to claim 1, characterized in that, The connecting ring (7) is made of rubber and contains nylon or metal wires.

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