A reaction tank for surface acid-oxidation treatment of ultra-high molecular weight polyethylene fibers

Abstract

The utility model discloses a kind of ultra-high molecular weight polyethylene fiber surface acid oxidation treatment's reaction pool, including main pool body and guide wire system;Acid oxidation reaction cavity, cleaning cavity and drying cavity are sequentially separated by inside main pool body along the direction of guide wire system conveying, and each chamber is isolated by the partition of fiber passage;Guide wire system includes material feeding roller group and direction-changing roller, and fiber is conveyed by material feeding roller group and bypasses direction-changing roller to make fiber enter to previous chamber lower part before passing through fiber passage, the direction-changing roller in acid oxidation reaction cavity is acid liquid infiltration roller, and spiral guide wire groove is arranged on the surface of acid liquid infiltration roller;First temperature control system and acid oxidation liquid that immerse the lower end of acid liquid infiltration roller are arranged in acid oxidation reaction cavity, stirring member and cleaning liquid that immerse the lower end of direction-changing roller inside it are arranged in cleaning cavity, second temperature control system is arranged in drier, and material feeding roller group includes conveying roller located at the front end of main pool body and silk collecting roller located at the rear end of main pool body.

Description

Technical Field

[0001] This utility model relates to the technical field of fiber surface treatment reaction devices, and in particular to a reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fiber surface. Background Technology

[0002] Ultra-high molecular weight polyethylene (UHMWPE) fiber plays a prominent role in key fields such as national defense, aerospace, and marine engineering due to its high strength and high modulus. However, the fiber's strong surface inertness and low surface energy result in poor interfacial bonding with other materials, leading to significant shortcomings in composite material preparation and coating adhesion.

[0003] Current fiber surface treatment methods typically involve modifying the surface of UHMWPE fibers by immersion or coating after the fibers come off the production line. However, due to limitations in existing reaction equipment, there are problems such as poor coating uniformity, inaccurate parameter control, and limited adaptability to different coating processes, making it difficult to meet the needs of large-scale industrial production and diversified demands. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, this utility model provides a reaction tank for acid oxidation treatment of high molecular weight polyethylene fiber surface, which improves the uniformity of fiber-acid contact, effectively solves the problem of excessively thick or thin coating in some areas of the existing reaction tank, makes the thickness of the oxide layer on the fiber surface more uniform, and significantly improves the uniformity of surface modification.

[0005] To achieve the above objectives, the present invention adopts the following technical solution.

[0006] A reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fiber surface includes a main tank and a fiber guiding system. The main tank is divided into an acid oxidation reaction chamber, a cleaning chamber, and a drying chamber along the conveying direction of the fiber guiding system. The chambers are separated by partitions with fiber channels. The fiber guiding system includes a feeding roller group and a reversing roller. The fiber is conveyed by the feeding roller group and bypasses the reversing roller so that the fiber enters the lower part of the previous chamber before passing through the fiber channel. The reversing roller in the acid oxidation reaction chamber is an acid immersion roller, and a spiral fiber guiding groove is formed on the surface of the acid immersion roller. The acid oxidation reaction chamber is equipped with a first temperature control system and an acid oxidation liquid that immerses the lower end of the acid immersion roller. The cleaning chamber is equipped with a stirring element and a cleaning liquid that immerses the lower end of the reversing roller inside. The dryer is equipped with a second temperature control system. The feeding roller group includes a conveying roller located at the front end of the main tank and a take-up roller located at the rear end of the main tank.

[0007] The main tank adopts a continuous chamber design to ensure a consistent fiber processing flow. Spiral guide grooves are created on the surface of the acid-wetting rollers within the acid oxidation reaction chamber of the fiber guiding system, allowing the fibers to fully adhere to the roller surface and be immersed in the acid. Combined with the orderly guidance of the feed roller assembly, this significantly improves the uniformity of fiber-acid contact, effectively solving the problem of excessively thick or thin coatings in existing reaction tanks, resulting in a more consistent oxide layer thickness on the fiber surface. The entire reaction tank employs a continuous processing mode, with fibers sequentially passing through the acid oxidation reaction chamber, cleaning chamber, drying chamber, and take-up system. These seamlessly connected stages reduce the intermediate waiting time of traditional intermittent reaction tanks, significantly increasing the fiber throughput per unit time and better meeting the needs of large-scale industrial production.

[0008] Preferably, the acid-wetting roller is completely immersed in the acid oxidation solution within the acid oxidation reaction chamber, and the width of the spiral guide groove is adapted to the diameter of the fiber to be treated. This allows the fiber to fully adhere to the roller surface and be immersed in the acid solution. Combined with the orderly guidance of the feed roller assembly, this significantly improves the uniformity of fiber-acid contact.

[0009] Preferably, the take-up roller is connected to a drive motor, the speed of which is adjustable to control the fiber feeding speed. The feed roller assembly also includes a tension regulator that works in conjunction with the take-up roller, located between the take-up roller and the drying chamber. The adjustable feed speed of the take-up roller allows for precise control of the fiber feeding speed; the tension regulator monitors and adjusts the winding tension in real time to prevent fiber stretching and deformation.

[0010] Preferably, the first and second temperature control systems are connected in parallel with temperature regulators to control the temperatures of the acid oxidation reaction chamber and the drying chamber. This allows for precise temperature control of the acid oxidation reaction chamber and the drying chamber.

[0011] Preferably, the first temperature control system includes a first temperature sensor and a first heating plate; the second temperature control system includes a second temperature sensor and a second heating plate; and the temperature regulator controls the first and second heating plates to heat or stop heating. The temperature sensor monitors the chamber temperature, and the heating plates and temperature regulator work together to achieve precise control of the chamber temperature.

[0012] Preferably, the feed roller assembly includes several guide rollers corresponding to the fiber channel, with the guide rollers arranged coplanarly and the reversing rollers also coplanar, with the plane of the reversing rollers parallel to the plane of the guide rollers. The guide rollers, in conjunction with the reversing rollers, ensure that the fiber has sufficient residence time in each chamber. The coplanarity of all guide rollers allows the vertical height variation of the fiber relative to the reversing rollers in different chambers to remain relatively stable, facilitating precise control of fiber tension.

[0013] Preferably, the guide roller is located inside the fiber channel. The guide roller can serve as part of the fiber channel sealing, achieving a relatively stable separation between adjacent chambers, while also ensuring that the fibers do not come into contact with the partitions and are scratched, thus guaranteeing the safety of the fiber travel process.

[0014] Preferably, two parallel reversing rollers are provided at the front and rear ends of the same chamber. The two reversing rollers work together to reliably spread the fibers within the same chamber, ensuring the fiber's residence time within the chamber, thereby enabling the fiber to complete the process in each chamber.

[0015] Preferably, the first heating plate is laid flat at the bottom of the acid oxidation reaction chamber and located below the reversing roller. The heating effect of the first heating plate acts on the fibers below the reversing roller relatively quickly, ensuring the acid oxidation reaction rate of the fibers.

[0016] Preferably, the agitator includes a waterproof motor and an agitator driven by the waterproof motor, the agitator being positioned at the bottom of the cleaning chamber and opposite to the fibers. This agitates the cleaning solution and improves the cleaning effect on the fibers.

[0017] This invention has the following advantages: 1. It significantly improves the uniformity of fiber surface modification; 2. It enables precise parameter control; 3. It improves reaction efficiency; 4. It enhances process adaptability. Attached Figure Description

[0018] In the picture: Figure 1 This is a schematic diagram of the overall structure of the reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fiber according to this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of a reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fibers according to this utility model. In the diagram: 1. Main tank body; 2. Feeding roller; 3. Temperature regulator; 4. First temperature sensor; 5. First heating plate; 6. Stirring component; 7. Second temperature sensor; 8. Second heating plate; 9. Take-up roller; 10. Tension regulator; 11. Rotating shaft; 12. Acid immersion roller; 13. Acid oxidation reaction chamber; 14. Cleaning chamber; 15. Drying chamber; 16. Switch; 17. First partition; 18. Second partition; 19. First guide roller; 20. Second guide roller; 21. Third guide roller; 22. Fourth guide roller; 23. Directional roller. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Example This application proposes a reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fiber surface, including a main tank body 1 and a fiber guiding system; the main tank body 1 is divided into an acid oxidation reaction chamber 13, a cleaning chamber 14 and a drying chamber 15 in sequence along the conveying direction of the fiber guiding system, and the chambers are separated by partitions with fiber channels; a first partition 17 is provided between the acid oxidation reaction chamber 13 and the cleaning chamber 14, and a second partition 18 is provided between the cleaning chamber 14 and the drying chamber 15. The fiber guiding system includes two sets of conveying rollers and a reversing roller 23. The conveying rollers and the reversing roller 23 are rotatably connected to the main tank body 1 through their respective rotating shafts 11, which are made of corrosion-resistant alloy material. The fiber is conveyed by two sets of feeding rollers and passes around the deflector roller 23 so that the fiber enters the lower part of the previous chamber before passing through the fiber channel. The deflector roller 23 in the acid oxidation reaction chamber 13 is an acid immersion roller 12, and the surface of the acid immersion roller 12 is provided with a spiral guide groove. The acid oxidation reaction chamber 13 is equipped with a first temperature control system and acid oxidation liquid that immerses the lower end of the acid immersion roller 12. The cleaning chamber 14 is equipped with a stirring element 6 and a cleaning liquid that immerses the lower end of the deflector roller 23 inside it. The dryer is equipped with a second temperature control system.

[0022] In this embodiment, the main body 1 is integrally molded from an acid-resistant material such as polytetrafluoroethylene (PTFE). The interior is divided into an acid oxidation reaction chamber 13, a cleaning chamber 14, and a drying chamber 15 along the fiber processing flow. Each chamber is isolated by a partition with a fiber channel, which ensures continuous fiber passage and achieves environmental independence for different process sections. The top of the tank is equipped with an openable inspection cover for easy acid replacement and component maintenance.

[0023] Two sets of feeding rollers and one reversing roller 23 are arranged to rotate relative to the main body 1 around their own axis for fiber conveying. The reversing roller 23 is located on the lower side of the chamber. As the fiber winds around the feeding rollers, it bypasses the lower side of the reversing roller 23, allowing the fiber to pass through the lower part of the chamber for a longer period of time, ensuring the reliable completion of the three processes of acid oxidation reaction, cleaning, and drying. Since the fiber bypasses the lower end of the reversing roller 23, theoretically, as long as the acid oxidation solution and cleaning solution are immersed in the lower end of the reversing roller 23 in the corresponding chamber, a reliable acid oxidation reaction or cleaning of the fiber can be achieved. Furthermore, in this embodiment, the acid wetting roller 12 is completely immersed in the acid oxidation solution in the acid oxidation reaction chamber 13. Since the fiber corresponds to the spiral guide groove, the spiral guide groove will drive the fiber to change direction. Immersing the upper end of the acid wetting roller 12 in the acid oxidation solution can ensure the reliable reaction of the fiber in the acid oxidation reaction chamber 13 and ensure the uniformity of the fiber surface. The width of the spiral guide groove is adapted to the diameter of the fiber to be treated. Preferably, the width of the spiral guide groove is 1.2 to 1.5 times the diameter of the limiting device to be processed. The spiral guide groove is a full spiral groove provided on the circumferential surface of the acid wetted roller 12, and the cross-section of the spiral guide groove is preferably semi-circular. As a simple alternative to the above scheme, the spiral guide groove is a number of short spiral grooves arranged circumferentially on the acid wetted roller 12 and spaced apart along the axial direction of the acid wetted roller 12.

[0024] The feeding roller group 2 includes a conveying roller at the front end of the main body tank 1 and a take-up roller 9 at the rear end of the main body tank 1. It also includes guide rollers corresponding to the fiber channels. The guide rollers include a first guide roller 19 located in the fiber channel of the first partition 17 and a second guide roller 20 located in the fiber channel of the second partition 18. It also includes a third guide roller 21 located at the upper front end of the acid oxidation reaction chamber 13 and a fourth guide roller 22 located at the upper rear end of the drying chamber 15. Channels for the third guide roller 21 and the fourth guide roller 22 are respectively provided on the front and rear side walls of the main body tank 1. The four guide rollers are arranged coplanarly. The feeding roller 2 and the take-up roller 9 are slightly lower than the plane of the guide rollers. The feeding roller 2 has a larger diameter at the beginning of feeding or the take-up roller 9 has a slightly lower height than the guide rollers. This arrangement ensures that the feeding roller 2 and the take-up roller 9 maintain relatively stable tension in these two states, guaranteeing the reliability of the yarn guiding system. The deflecting roller 23 is coplanar, and the plane of the deflecting roller 23 is parallel to the plane of the guide rollers. The guide rollers, in conjunction with the reversing rollers 23, allow the fibers to have sufficient residence time in each chamber. The coplanarity of all the guide rollers ensures that the vertical height variation of the fibers relative to the reversing rollers 23 in different chambers remains relatively stable, facilitating precise control of fiber tension.

[0025] Two parallel reversing rollers 23 are provided at the front and rear ends of the same chamber. The two reversing rollers 23 work together to reliably spread the fibers in the same chamber, ensuring the residence time of the fibers in the chamber, thereby enabling the fibers to complete the process in each chamber.

[0026] The take-up roller 9 is connected to a drive motor, the speed of which is adjustable to control the fiber feeding speed. The feed roller group 2 also includes a tension regulator 10 that works in conjunction with the take-up roller 9. The tension regulator 10 is located between the take-up roller 9 and the drying chamber 15. The take-up roller 9 is mounted on the outlet end of the main tank 1 via a rotating shaft 11 and is connected to the drive motor to wind the acid-oxidized UHMWPE fibers. The drive motor is a variable frequency motor that is linked with the feed roller 2 of the guide system to precisely control the fiber feeding speed. The tension regulator 10 is located between the take-up roller 9 and the drying chamber 15 to monitor and adjust the fiber winding tension in real time to prevent fiber stretching and deformation. The tension adjustment range of the tension regulator 10 is 5-20 N.

[0027] The agitator 6 within the cleaning chamber 14 includes a waterproof motor and an agitator driven by the waterproof motor. The agitator is positioned at the bottom of the cleaning chamber 14 and faces the fibers. This agitation of the cleaning solution is achieved. The waterproof motor is located at the bottom of the cleaning chamber 14, and its motor shaft is connected to the agitator. The surfaces of the waterproof motor and the agitator are treated for corrosion resistance. Because the agitator is positioned at the bottom of the cleaning chamber 14 and faces the fibers, its agitation action directly and rapidly reaches the fiber surface, improving the cleaning effect. The cleaning solution within the cleaning chamber 14 is a mixture of deionized water and a neutralizing agent. The cleaning chamber 14 may also be equipped with a cleaning solution pipe, which can be connected to an external cleaning solution replenishment device to add neutralizing agent and deionized water in different proportions as needed.

[0028] The first and second temperature control systems are connected in parallel with a temperature regulator 3 to control the temperature of the acid oxidation reaction chamber 13 and the drying chamber 15. The first temperature control system includes a first temperature sensor 4 and a first heating plate 5; the second temperature control system includes a second temperature sensor 7 and a second heating plate 8; the temperature regulator 3 controls the first heating plate 5 and the second heating plate 8 to heat or stop heating.

[0029] The first heating plate 5 is laid flat at the bottom of the acid oxidation reaction chamber 13 and located below the reversing roller 23. The first temperature sensor 4 is fixed to one side of the inner wall of the acid oxidation reaction chamber 13, and the temperature regulator 3 is located outside the main body 1. The second heating plate 8 is fixed to the inner side wall of the drying chamber 15. To improve the drying effect of the drying chamber 15, a hot air assembly can be further provided inside the drying chamber 15. The hot air assembly is used to blow the heated air from the second heating plate 8 onto the fibers in the drying chamber 15 to improve the drying efficiency. For example, the hot air assembly is an optional hot air circulating fan.

[0030] As a simple alternative to the above embodiments, the first guide roller 19 may be located at a position that is flush with or slightly higher than the fiber channel on the front or rear side of the first partition 17.

[0031] As a simple alternative to the above embodiment, the first heating plate 5 and the second heating plate 8 can be replaced with resistance heating elements, eddy current heating plates, etc.

[0032] As a simple alternative to the above embodiment, the conveying roller assembly and the reversing roller 23 can be fixedly connected to the rotating shaft 11 of the main body 1, and the conveying roller assembly and the reversing roller 23 can be rotatably sleeved on the rotating shaft 11; or, the two ends of the rotating shaft 11 can be rotatably connected to the main body 1, and the conveying roller assembly and the reversing roller 23 can be rotatably or fixedly mounted on the rotating shaft 11.

[0033] The working principle and operation process of this utility model are as follows: A. Preparation: Check the independence of each chamber in the main tank 1, especially the sealing of the partitions relative to the main tank 1, and ensure that the fiber channels of the partitions between the acid oxidation reaction chamber 13, the cleaning chamber 14, and the drying chamber 15 are unobstructed. Add an appropriate amount of acid oxidation solution to the acid oxidation reaction chamber 13 through a dedicated pipe, so that the acid soaking roller 12 is completely immersed in the acid oxidation solution; add cleaning solution (a mixture of deionized water and neutralizing agent) to the cleaning chamber 14. Turn on the power through switch 16 and check whether each component is working properly.

[0034] B. Parameter Setting: The temperature required for the acid oxidation reaction is set via temperature regulator 3. The first temperature sensor 4 monitors the temperature of the acid solution in the acid oxidation reaction chamber 13 in real time and transmits the temperature data to temperature regulator 3. Temperature regulator 3 controls the first heating plate 5 to heat or stop heating, maintaining the acid solution temperature within the set range. Simultaneously, the drying temperature of the drying chamber 15 is set via temperature regulator 3. The second temperature sensor 7 monitors the temperature inside the drying chamber 15 in real time, and temperature regulator 3 controls the second heating plate 8 to ensure stable drying temperature. The drive motor speed is set to control the fiber feeding speed.

[0035] C. Fiber Treatment: The ultra-high molecular weight polyethylene (UHMWPE) fibers to be treated are introduced through the feed roller 2 at the inlet of the main tank 1. Guided by the feed roller 2 and the third guide roller 21, the fibers enter the acid oxidation reaction chamber 13. Inside the acid oxidation reaction chamber 13, the fibers pass through the spiral guide grooves on the surface of the acid immersion roller 12, making full contact with the acid oxidation solution and completing the surface acid oxidation reaction. After the reaction, the fibers are conveyed to the cleaning chamber 14 via the first guide roller 19. Inside the cleaning chamber 14, a waterproof motor drives the agitator to rotate, which fully agitates the cleaning solution and neutralizes and cleans the residual acid on the fiber surface. After cleaning, the fibers are sent to the drying chamber 15 via the second guide roller 20. The second heating plate 8 heats the air inside the drying chamber 15, causing the moisture on the fiber surface to evaporate and dry, thus accelerating the drying process.

[0036] D. Take-up operation: The dried ultra-high molecular weight polyethylene fiber is led out of the drying chamber 15 by the fourth guide roller 22. After the tension is adjusted by the tension regulator 10, the modified fiber is wound and taken up by the take-up roller 9.

[0037] E. End of Work: After processing, turn off the power using switch 16. Discharge the waste liquid in the acid oxidation reaction chamber 13 and cleaning chamber 14 through a dedicated pipeline and treat it. Open the access cover on the top of the main tank 1 to clean and maintain all components for future use.

[0038] This utility model has the following beneficial effects: Significantly improving the uniformity of surface modification, the main tank 1 adopts a continuous chamber design to ensure a consistent fiber processing flow. The surface of the acid-wetting roller 12 in the acid oxidation reaction chamber 13 of the fiber guiding system is provided with a spiral guide groove, which enables the fiber to fully adhere to the roller surface and be immersed in the acid. Combined with the orderly guidance of the feeding roller 2, the uniformity of fiber-acid contact is greatly improved, effectively solving the problem of excessively thick or thin coatings in existing reaction tanks, and making the oxide layer thickness on the fiber surface more consistent.

[0039] To achieve precise parameter control, the temperature control system, through the coordinated action of the first temperature sensor 4, temperature regulator 3, and first heating plate 5, can accurately regulate the temperature of the acid oxidation reaction chamber 13. The drive motor, a variable frequency motor, is linked with the feed roller 2 of the guide system to precisely control the fiber feeding speed. The tension regulator 10 monitors and adjusts the winding tension in real time to prevent fiber stretching and deformation. The cooperation of multiple systems enables precise control of key parameters in the reaction process, improving the stability and predictability of the reaction results.

[0040] The reaction is highly efficient. The entire reaction tank adopts a continuous processing mode. The fibers pass through the acid oxidation reaction chamber 13, the cleaning chamber 14, the drying chamber 15 and the take-up roller 9 in sequence. Each link is seamlessly connected, which reduces the intermediate waiting time of the traditional intermittent reaction tank and significantly increases the fiber processing capacity per unit time, which can better meet the needs of large-scale industrial production.

[0041] With strong process adaptability, the temperature of the acid oxidation reaction chamber 13 and the fiber feeding speed can be flexibly adjusted according to different modification requirements, making it suitable for acid oxidation modification of various specifications of UHMWPE fibers. Meanwhile, the cleaning system can be replenished with different proportions of neutralizing liquid and deionized water via the cleaning liquid pipe, and the second heating plate 8 and hot air assembly of the drying system can also be adjusted as needed to adapt to different process requirements.

[0042] To ensure operational safety and environmental protection, the main tank 1 is integrally molded from an acid-corrosion-resistant material, with each chamber being independent and well-isolated, reducing the volatilization of acid mist. Wastewater generated by the cleaning system can be centrally treated before discharge, reducing environmental pollution. Furthermore, the stable operation and precise control of each system also reduce safety risks during operation, ensuring the safety of operators.

Claims

1. A reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fiber surface, characterized in that: Includes the main pool body and the guide wire system; The main body of the tank is divided into an acid oxidation reaction chamber, a cleaning chamber and a drying chamber in sequence along the conveying direction of the guide wire system. Each chamber is separated by a partition with a fiber channel. The fiber guiding system includes a feeding roller group and a reversing roller. The fiber is conveyed through the feeding roller group and bypasses the reversing roller so that the fiber enters the lower part of the previous chamber before passing through the fiber channel. The reversing roller in the acid oxidation reaction chamber is an acid liquid wetting roller, and a spiral guiding groove is opened on the surface of the acid liquid wetting roller. The acid oxidation reaction chamber is equipped with a first temperature control system and an acid oxidation liquid that immerses the lower end of the acid wetting roller. The cleaning chamber is equipped with a stirring element and a cleaning liquid that immerses the lower end of the internal reversing roller. The dryer is equipped with a second temperature control system. The conveying roller group includes a conveying roller located at the front end of the main tank and a take-up roller located at the rear end of the main tank.

2. The reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fiber surface according to claim 1, characterized in that, The acid-wetting roller is completely immersed in the acid oxidation solution in the acid oxidation reaction chamber, and the width of the spiral guide groove is adapted to the diameter of the fiber to be treated.

3. The reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fiber surface according to claim 1, characterized in that, The take-up roller is connected to a drive motor, the speed of which is adjustable to control the fiber feeding speed; the feed roller assembly also includes a tension regulator that works in conjunction with the take-up roller, the tension regulator being located between the take-up roller and the drying chamber.

4. The reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fiber surface according to claim 1, characterized in that, The first and second temperature control systems are connected in parallel with temperature regulators to control the temperature of the acid oxidation reaction chamber and the drying chamber.

5. The reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fiber surface according to claim 4, characterized in that, The first temperature control system includes a first temperature sensor and a first heating plate; the second temperature control system includes a second temperature sensor and a second heating plate; the temperature regulator controls the first heating plate and the second heating plate to heat or stop heating.

6. The reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fiber surface according to claim 1, characterized in that, The feeding roller group includes several guide rollers corresponding to the fiber channel. The guide rollers are arranged in the same plane, and the reversing rollers are arranged in the same plane, with the plane of the reversing rollers parallel to the plane of the guide rollers.

7. The reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fiber surface according to claim 6, characterized in that, The guide roller is located inside the fiber channel.

8. The reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fiber surface according to claim 1, characterized in that, The reversing rollers are provided in parallel at the front and rear ends of the same chamber.

9. The reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fiber surface according to claim 5, characterized in that, The first heating plate is laid flat at the bottom of the acid oxidation reaction chamber and located below the reversing roller.

10. A reaction tank for acid oxidation treatment of ultra-high molecular weight polyethylene fiber surface according to any one of claims 1 to 9, characterized in that, The agitator includes a waterproof motor and an agitator driven by the waterproof motor, the agitator being positioned at the bottom of the cleaning chamber and opposite to the fibers.

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