Aramid fiber drying device and method

Abstract

The present invention relates to the field of fiber drying technology, and specifically to an aramid fiber drying device and method, comprising a fiber drying device frame, wherein a maintenance and disassembly sealing plate is arranged on the outer side of the fiber drying device frame, and a drying shaking component and a heat circulation drying component are arranged on the inner side of the fiber drying device frame. The beneficial effects are as follows: the present invention cooperates with the drying shaking component and the heat circulation drying component, and the shaking and dispersion are accompanied during the aramid fiber drying process, which can not only shake off the moisture and accelerate the drying, but also prevent the fiber from sticking during the drying process, and at the same time, cooperate with the alternating drying of hot and cold air to make the fiber drying more uniform, and design the air duct to produce the effect of circulating drying, which can not only condense and remove the water vapor carried by the hot air drying, but also use the heat to perform basic drying on the outer side of the T-shaped fiber shaking frame, thereby achieving the effect of energy saving and environmental protection.

Description

Technical Field

[0001] The invention belongs to the technical field of fiber drying, and in particular relates to an aramid fiber drying device and method. Background Art

[0002] Aramid fiber is a high-performance synthetic fiber, known for its excellent mechanical properties and chemical stability. Aramid fiber is widely used in many fields, including aerospace, military, automobile, construction and safety protection. Aramid fiber needs to be dried during production and processing to remove excess moisture and ensure its performance and quality. In the prior art, the fiber drying process is mostly achieved by air dryers, that is, the fiber is transported to the inside of the air dryer and the fiber is air-dried with the help of hot air flow. However, the existing air dryers have a complex structure, poor drying effect and low drying efficiency, and cannot ensure effective air drying of the fiber.

[0003] The existing Chinese patent document with publication number CN112629233B proposes a chemical fiber drying device, which solves the above technical problems by continuously sucking chemical fibers into a storage box through a suction component, and transporting the chemical fibers from the storage box to a discharge pipe, and heating and drying them with a heating element and discharging them from the end of the discharge pipe. However, aramid fibers are generally in filamentary form, and heating and drying will cause the fibers to stick together after the water evaporates, affecting the overall drying effect.

[0004] Therefore, the present invention proposes an aramid fiber drying device and method to solve the problem in the prior art that the filamentary fibers will stick together after the water evaporates when heated and drying, affecting the overall drying effect. The transport roller is designed to cooperate with a shaking component to shake and disperse the fibers during the fiber conveying process to avoid fiber adhesion. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention aims to provide an aramid fiber drying device and method to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an aramid fiber drying device, comprising a fiber drying device frame, a maintenance and disassembly sealing plate is arranged on the outer side of the fiber drying device frame, a drying shaking assembly and a heat circulation drying assembly are arranged on the inner side of the fiber drying device frame, the drying shaking assembly comprises a guide roller and a shaking hollow roller, the heat circulation drying assembly comprises a hot air exhaust hood and a hot air condensation semi-ring pipe, the interior of the shaking hollow roller is evenly distributed with T-shaped fiber shaking frames, and the hot air condensation semi-ring pipe is arranged on the outside of the shaking hollow roller.

[0007] Preferably, the guide roller and the shaking hollow roller are both rotatably mounted on the inner surface of the fiber drying device frame, the guide roller is arranged on both sides of the shaking hollow roller, and three groups of shaking hollow rollers are equidistantly arranged. The outer surfaces of one end of the guide roller and the shaking hollow roller are provided with gear and chain assemblies, and the outer side of the fiber drying device frame is provided with a motor for driving the guide roller and the shaking hollow roller to rotate.

[0008] Preferably, the T-shaped fiber shaking frame is slidably installed on the inner side of the shaking hollow roller, and elastically connected folding plates are fixedly installed on both sides of the T-shaped fiber shaking frame, one side of the elastically connected folding plate is fixedly connected to the inner surface of the shaking hollow roller, and the upper surface of the T-shaped fiber shaking frame is evenly distributed with drying air outlets.

[0009] Preferably, oblique dispersion sheets are evenly distributed on the outer surface of the T-shaped fiber shaking frame, and the oblique dispersion sheets are movably installed on the outer surface of the T-shaped fiber shaking frame in an oblique and staggered manner. An absorbent sponge pad is fixedly installed on the upper surface of the oblique dispersion sheet, and an oblique dispersion air outlet slot is opened on the upper surface of the oblique dispersion sheet.

[0010] Preferably, a fixed convex tube is provided at the inner center of the shaking hollow roller, both ends of the fixed convex tube penetrate the inner wall of the fiber drying device frame, the fixed convex tube is fixedly installed on the side wall of the fiber drying device frame, a heating tube is fixedly installed at one closed end of the fixed convex tube, and a hot air outlet is provided at the protrusion of the side wall of the heating tube.

[0011] Preferably, a circulating fan is provided on one side of the fiber drying device frame, a circulating air inlet duct is fixedly installed on the open end of the fixed convex pipe, one end of the circulating air inlet duct is fixedly connected to the output air duct end of the circulating fan, the hot air exhaust hood is fixedly installed on the upper inner side of the fiber drying device frame, and a degassing pipe is fixedly installed on the top of the hot air exhaust hood.

[0012] Preferably, a hot air inlet ring pipe is fixedly installed on one end of the hot air condensation semi-ring tube close to the closed end of the fixed convex tube, and a cooling air outlet ring pipe is fixedly installed on one end of the hot air condensation semi-ring tube close to the open end of the fixed convex tube. The cooling air outlet ring pipe and the hot air inlet ring pipe are both fixedly installed on the inner surface of the fiber drying device frame, the lower end of the outlet pipe is fixedly connected to the inner wall of the hot air inlet ring pipe, and a cooling air return pipe is fixedly installed on the outer wall of the cooling air outlet ring pipe, and the upper end of the cooling air return pipe is fixedly connected to the air inlet pipe end of the circulating fan.

[0013] Preferably, a water vapor condensation chamber is provided inside the hot air condensation semi-ring tube, a heat exchange fin is fixedly installed on the inner side of the water vapor condensation chamber, a condensate collecting groove is provided at the bottom of the water vapor condensation chamber, a condensate discharge pipe is fixedly installed at the bottom of the condensate collecting groove, a condensate drip groove is opened at the lower end of the heat exchange fin, and condensation plates are evenly distributed on one side surface of the heat exchange fin.

[0014] Preferably, a cold air drying box is provided between the hot air condensation semi-ring tubes, and the cold air drying box is fixedly installed between the inner surfaces of the fiber drying device frame, a cold air inlet pipe is fixedly installed at the bottom of the cold air drying box, an air inlet fan is provided on one side of the cold air inlet pipe, a triangular dispersion pad is slidably installed above the inner surface of the cold air drying box, and a drying groove is opened at the upper end of the triangular dispersion pad.

[0015] The present invention also proposes a method for drying aramid fibers, comprising the following steps:

[0016] Step 1: The aramid fiber is conveyed and shaken to dry. The motor and gear chain can drive the guide roller and the shaking hollow roller to rotate synchronously to guide the aramid fiber. The shaking hollow roller rotates continuously, and the T-shaped fiber shaking rack makes the aramid fiber shake continuously. The heating tube can heat the air, and the hot air is discharged through the hot air outlet into the interior of the T-shaped fiber shaking rack and discharged through the drying air outlet to dry the fiber from below.

[0017] Step 2: Hot air circulates to exhaust water vapor. The circulating fan works to absorb the airflow along the hot air exhaust hood into the inlet and outlet pipes, and disperses it into the inside of the hot air condensation semi-circular pipe through the hot air introduction ring pipe to condense and remove water vapor. Then, it is sucked into the circulating air inlet pipe through the cooling air outlet ring pipe and the cooling air return pipe and re-enters the fixed convex pipe for circulating heating and drying.

[0018] Step 3: Alternate drying with cold air. The air inlet fan and the cold air inlet pipe cooperate to inject cold air into the cold air drying box, so that the cold air can effectively cool the fiber after hot air drying, and perform alternating drying with cold and hot air.

[0019] Step 4: After three hot air dryings and two cold air dryings, the aramid fiber is output and waits for the next step of processing.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] By cooperating with the drying shaking component and the heat circulation drying component, the aramid fiber is shaken and dispersed during the drying process, which can not only shake off the moisture and accelerate the drying, but also prevent the fibers from sticking together during the drying process. At the same time, the alternating drying of hot and cold air can make the fiber drying more uniform. The air duct is designed to produce a circulating drying effect, which can not only condense and remove the water vapor carried by the hot air drying, but also use the heat to perform basic drying on the outside of the T-shaped fiber shaking frame, thereby achieving energy saving and environmental protection, and solving the problem in the prior art that the filamentous fibers will stick together after the water evaporates when the heating drying method is used, affecting the overall drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of one side of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure of the other side of the present invention;

[0024] Figure 3 It is a schematic diagram of the overall bottom-up structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the fiber drying device of the present invention after the sealing plate on one side of the frame is removed;

[0026] Figure 5 This is a schematic diagram of the structure of the fiber drying device frame of the present invention after the sealing plate on the other side is removed;

[0027] Figure 6 It is a schematic diagram of the overall structure of one side of the drying shaking component and the heat circulation drying component of the present invention;

[0028] Figure 7 It is a schematic diagram of the other side structure of the drying shaking component and the heat circulation drying component of the present invention;

[0029] Figure 8 It is a schematic diagram of the overall structure of the drying shaking component and the heat circulation drying component of the present invention from a bottom view;

[0030] Fig. 9 It is a schematic diagram of the structure of the hot air exhaust cover of the present invention;

[0031] Fig.10 It is a schematic diagram of the cold air drying box structure of the present invention;

[0032] Fig.11 It is a schematic diagram of the overall structure of the hot air condensation semi-ring tube and the shaking hollow roller of the present invention;

[0033] Fig.12 It is a schematic diagram of the split structure of the hot air condensation semi-ring tube and the shaking hollow roller of the present invention;

[0034] Fig.13 It is a schematic diagram of the overall internal structure of the hot air condensation semi-ring tube and the shaking hollow roller of the present invention;

[0035] Fig.14 It is a schematic diagram of the overall internal structure of the shaking hollow roller of the present invention;

[0036] Fig.15 This is a schematic diagram of the internal split structure of the hot air condensation semi-ring tube of the present invention;

[0037] Fig.16 It is a schematic diagram of the overall structure of the T-shaped fiber shaking frame of the present invention;

[0038] Fig.17 It is a schematic flow chart of the drying method of the present invention.

[0039] In the figure: 1, fiber drying device frame; 2, drying shaking assembly; 21, guide roller; 22, shaking hollow roller; 221, T-shaped fiber shaking frame; 2211, drying air outlet; 2212, oblique dispersion sheet; 2213, absorption sponge pad; 2214, oblique dispersion air outlet slot; 222, elastic connection folding plate; 23, fixed convex pipe; 231, heating pipe; 232, hot air outlet; 24, circulating air inlet pipe; 25, circulating fan; 26, cold air drying box; 261, cold air inlet pipe ; 262, air inlet fan; 263, triangular dispersion pad; 2631, drying trough; 3, heat circulation drying component; 31, hot air exhaust hood; 311, outlet pipe; 32, hot air condensation semi-ring pipe; 321, hot air inlet ring pipe; 322, cooling air outlet ring pipe; 323, cooling air return pipe; 324, condensate discharge pipe; 325, water vapor condensation chamber; 3251, condensate collection tank; 326, heat exchange fins; 3261, condensate drip groove; 3262, condensation sheet. DETAILED DESCRIPTION

[0040] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] For example, see Figures 1 to 17The present invention provides a technical solution: an aramid fiber drying device, comprising a fiber drying device frame 1, a maintenance and disassembly sealing plate is arranged on the outer side of the fiber drying device frame 1, a drying shaking component 2 and a heat circulation drying component 3 are arranged on the inner side of the fiber drying device frame 1, the drying shaking component 2 comprises a guide roller 21 and a shaking hollow roller 22, the heat circulation drying component 3 comprises a hot air exhaust hood 31 and a hot air condensation semi-ring pipe 32, and T-shaped fiber shaking frames 221 are evenly distributed inside the shaking hollow roller 22, The hot air condensation semi-ring pipe 32 is arranged on the outside of the shaking hollow roller 22, the guide roller 21 and the shaking hollow roller 22 are both rotatably installed on the inner surface of the fiber drying device frame 1, the guide roller 21 is arranged on both sides of the shaking hollow roller 22, and the shaking hollow roller 22 is arranged in three groups at equal intervals. The outer surface of one end of the guide roller 21 and the shaking hollow roller 22 is provided with a gear and chain assembly, and the outer side of the fiber drying device frame 1 is provided with a motor for driving the guide roller 21 and the shaking hollow roller 22 to rotate, and the T-shaped fiber shaking frame 221 is slidably installed. Installed on the inner side of the shaking hollow roller 22, elastically connected folding plates 222 are fixedly installed on both sides of the T-shaped fiber shaking frame 221, one side of the elastically connected folding plate 222 is fixedly connected to the inner surface of the shaking hollow roller 22, the upper surface of the T-shaped fiber shaking frame 221 is evenly distributed with drying air outlets 2211, and the outer surface of the T-shaped fiber shaking frame 221 is evenly distributed with oblique dispersion sheets 2212, which are obliquely staggered and movably installed on the outer surface of the T-shaped fiber shaking frame 221. An absorbent sponge pad 2213 is fixedly installed on the upper surface of the oblique dispersing sheet 2212, and an oblique dispersing air outlet slot 2214 is opened on the upper surface of the oblique dispersing sheet 2212. A fixed convex tube 23 is arranged at the inner center of the shaking hollow roller 22, and both ends of the fixed convex tube 23 penetrate the inner wall of the fiber drying device frame 1. The fixed convex tube 23 is fixedly installed on the side wall of the fiber drying device frame 1, and a heating tube 231 is fixedly installed on one closed end of the fixed convex tube 23, and a hot air outlet 232 is opened at the convex part of the side wall of the heating tube 231;In this embodiment, the guide roller 21 and the shaking hollow roller 22 can be driven by the motor and the gear chain to rotate synchronously to guide the aramid fiber. One side of the fixed convex tube 23 is convex, so that as the shaking hollow roller 22 rotates, the T-shaped fiber shaking frame 221 will pass through the convex side of the fixed convex tube 23 in turn, be squeezed and bounce upward, and drive the passing aramid fiber to shake once. The shaking hollow roller 22 keeps rotating and the T-shaped fiber shaking frame 221 will cause the aramid fiber to shake continuously, which can not only shake the fibers apart to prevent them from sticking together, but also shake off moisture during shaking to accelerate the drying of the fibers. A heating tube 231 is arranged inside the fixed convex tube 23 to heat the air, and the hot air passes through the hot air outlet 232 The fibers are discharged from the inside of the T-shaped fiber shaking frame 221 through the drying air outlet 2211 to dry the fibers from below. The oblique dispersion sheets 2212 are staggeredly installed above the T-shaped fiber shaking frame 221. When the T-shaped fiber shaking frame 221 shakes the fibers, the single oblique dispersion sheet 2212 can decompose a large shake into small shakes because it is in contact with the fibers, so that the fibers are completely shaken and dispersed. In addition, the absorption sponge pad 2213 can absorb the liquid water contained on the fibers. The oblique dispersion air outlet slot 2214 is obliquely located above the drying air outlet 2211, and can use hot air to evenly disperse and accelerate the uniform drying of the fibers during the shaking process, preventing the fibers from being unevenly dried locally and sticking together during the hot air drying process. ;

[0042] For example 2, please refer to Figures 1 to 17On the basis of the first embodiment, in order to discharge the water vapor contained in the hot air drying as quickly as possible to avoid accumulation on the fiber and affecting the drying process, the present embodiment further proposes that a circulating fan 25 is provided on one side of the fiber drying device frame 1, a circulating air inlet pipe 24 is fixedly installed on the open end of the fixed convex pipe 23, one end of the circulating air inlet pipe 24 is fixedly connected to the output air duct end of the circulating fan 25, a hot air discharge hood 31 is fixedly installed on the upper inner side of the fiber drying device frame 1, a lead-out pipe 311 is fixedly installed on the top of the hot air discharge hood 31, a hot air introduction ring pipe 321 is fixedly installed on one end of the hot air condensation semi-ring pipe 32 close to the closed end of the fixed convex pipe 23, a cooling air lead-out ring pipe 322 is fixedly installed on one end of the hot air condensation semi-ring pipe 32 close to the open end of the fixed convex pipe 23, and the cooling air lead-out ring pipe 322 is fixedly installed on the cooling air lead-out ring pipe 322. The hot air inlet ring pipe 321 is fixedly installed on the inner surface of the fiber drying device frame 1, the lower end of the outlet pipe 311 is fixedly connected to the inner wall of the hot air inlet ring pipe 321, the outer wall of the cooling air outlet ring pipe 322 is fixedly installed with a cooling air return pipe 323, the upper end of the cooling air return pipe 323 is fixedly connected to the air inlet pipe end of the circulating fan 25, the interior of the hot air condensation semi-ring pipe 32 is provided with a water vapor condensation chamber 325, the inner side of the water vapor condensation chamber 325 is fixedly installed with a heat exchange fin 326, the bottom of the water vapor condensation chamber 325 is provided with a condensate collection tank 3251, the bottom of the condensate collection tank 3251 is fixedly installed with a condensate discharge pipe 324, the lower end of the heat exchange fin 326 is provided with a condensate dripping tank 3261, and one side surface of the heat exchange fin 326 is evenly distributed with condensation plates 3262;In the present embodiment, an exhaust hole is arranged at the arc-shaped concave part of the hot air exhaust hood 31, and the circulating fan 25 absorbs the air flow along the hot air exhaust hood 31 into and out of the pipe 311, and disperses the air flow into the inner side of the hot air condensation semi-ring pipe 32 through the hot air introduction ring pipe 321 to condense and remove water vapor, and then the air flow is sucked into the circulating air inlet pipe 24 through the cooling air outlet ring pipe 322 and the cooling air return pipe 323 to re-enter the fixed convex pipe 23 for circulating heating and drying. The advantages of such a design are as follows: firstly, the arc-shaped concave part of the hot air exhaust hood 31 can not only fit the T-shaped fiber shaking frame 221 to shake the fibers, but also gather the heat generated by the rising hot air, and the hot air containing a large amount of water vapor can be discharged through the outlet pipe 311 to avoid the accumulation of water vapor on the top of the fibers and affect the later drying. Then, the hot air containing a large amount of water vapor also contains heat, and enters the water vapor condensation chamber 325 inside the hot air condensation semi-ring pipe 32 through the hot air introduction ring pipe 321 to carry out heat exchange condensation. Moisture can be removed. At the same time, heat is exchanged through the heat exchange fins 326, so that the temperature inside the hot air condensation semi-circular tube 32 rises. In this way, as the shaking hollow roller 22 rotates, the T-shaped fiber shaking frame 221 shrinks to the surface of the shaking hollow roller 22 under the elastic pull of the elastic connection folding plate 222. When entering the inside of the hot air condensation semi-circular tube 32, the heat can be used for secondary drying, so that the moisture on the surface of the T-shaped fiber shaking frame 221 can play a certain degree of drying effect, which can also be regarded as a secondary utilization of heat, and has a certain degree of energy-saving and environmental protection effect. Finally, the condensation water drip groove 3261 on the inner side of the heat exchange fin 326 accelerates the condensation area of ​​the hot air, and the generated condensation water will drip into the condensation water collection tank 3251 at the bottom through the condensation sheet 3262, and finally discharged through the condensation water discharge pipe 324, so as to achieve the purpose of using hot air to carry water evaporation and condensation to remove moisture for drying. Compared with the traditional simple hot air drying, this hot air circulation drying process is more reasonable. ;

[0043] For example 3, please refer to Figures 1 to 17On the basis of the second embodiment, in order to protect the fibers and avoid adverse effects of overheating on the fibers, the present embodiment further proposes that a cold air drying box 26 is arranged between the hot air condensation semi-ring tubes 32, and the cold air drying box 26 is fixedly installed between the inner surfaces of the fiber drying device frame 1, and a cold air inlet pipe 261 is fixedly installed at the bottom of the cold air drying box 26, and an air inlet fan 262 is arranged on one side of the cold air inlet pipe 261, and a triangular dispersion pad 263 is slidably installed above the inner surface of the cold air drying box 26, and a drying groove 2631 is opened at the upper end of the triangular dispersion pad 263; in the present embodiment, the air inlet fan 262 mainly injects cold air into the cold air drying box 26 through the cold air inlet pipe 261, and the space above the hot air exhaust hood 31 of the cold air drying box 26 is in a closed state, so that the cold air can effectively The fibers are cooled after being dried with hot air, and are dried alternately with hot and cold air. The hot air can quickly increase the temperature of the material surface and accelerate the evaporation of moisture, while the cold air can help take away the evaporated moisture and prevent moisture from re-condensing on the material surface. The alternating use of hot and cold air can ensure that all parts of the material are heated evenly, avoiding local over-drying or over-wetting, and improving the uniformity of drying. At the same time, the cold air can help prevent the material surface from hardening prematurely, maintain the softness and elasticity of the material, reduce the temperature gradient inside the material, and avoid cracks and deformation caused by uneven temperature. The triangular dispersion pad 263 also produces a certain degree of shaking effect when the cold air blows on the fibers to dry them. At the same time, the existence of the drying groove 2631 allows the cold air to be inserted into the fibers, so that the fibers are dispersed again and dried thoroughly, avoiding the fibers from sticking together, thereby improving the quality of fiber drying.

[0044] Example 4, please refer to Figures 1 to 17On the basis of the third embodiment, this embodiment further proposes a method for drying aramid silk fibers, comprising the following steps: step one, the aramid silk fibers are conveyed and shaken to dry, the motor and the gear chain can drive the guide roller 21 and the shaking hollow roller 22 to rotate synchronously, and guide the aramid silk fibers to be conveyed, the shaking hollow roller 22 rotates continuously, the T-shaped fiber shaking frame 221 causes the aramid silk fibers to shake continuously, the heating tube 231 can heat the air, and the hot air is discharged through the hot air outlet 232 into the interior of the T-shaped fiber shaking frame 221 and discharged through the drying air outlet 2211 to dry the fibers from below; step two, the hot air circulates to exhaust water vapor, and the circulating fan 25 works The airflow is absorbed along the hot air exhaust hood 31 by the inlet and outlet pipes 311, dispersed into the inner side of the hot air condensation semi-annular pipe 32 through the hot air inlet ring pipe 321 for condensation to remove water vapor, and then sucked into the circulating air inlet pipe 24 through the cooling air outlet ring pipe 322 and the cooling air return pipe 323 to re-enter the fixed convex pipe 23 for circulating heating and drying; Step three, cold air alternating drying, the air inlet fan 262 cooperates with the cold air inlet pipe 261 to inject cold air into the cold air drying box 26, so that the cold air can effectively cool the fibers after hot air drying, and perform hot and cold alternating drying; Step four, the aramid fiber is output after three hot air dryings and two cold air dryings to wait for the next step of processing.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aramid fiber drying device, comprising a fiber drying device frame (1), wherein a maintenance and disassembly sealing plate is arranged on the outer side of the fiber drying device frame (1), characterized in that: A drying shaking assembly (2) and a heat circulation drying assembly (3) are arranged on the inner side of the fiber drying device frame (1); the drying shaking assembly (2) comprises a guide roller (21) and a shaking hollow roller (22); the heat circulation drying assembly (3) comprises a hot air exhaust hood (31) and a hot air condensation semi-circular tube (32); the interior of the shaking hollow roller (22) is evenly distributed with T-shaped fiber shaking frames (221); the hot air condensation semi-circular tube (32) is arranged on the outside of the shaking hollow roller (22); the T-shaped fiber shaking frame (221) is slidably mounted on the inner side of the shaking hollow roller (22); and elastic springs are fixedly mounted on both sides of the T-shaped fiber shaking frame (221). A folding plate (222) is elastically connected, one side of the folding plate (222) is fixedly connected to the inner surface of the shaking hollow roller (22), the upper surface of the T-shaped fiber shaking frame (221) is evenly distributed with drying air outlets (2211), the outer surface of the T-shaped fiber shaking frame (221) is evenly distributed with oblique dispersion sheets (2212), the oblique dispersion sheets (2212) are obliquely and staggeredly installed on the outer surface of the T-shaped fiber shaking frame (221), an absorbent sponge pad (2213) is fixedly installed on the upper surface of the oblique dispersion sheet (2212), and an oblique dispersion air outlet slot (2214) is opened on the upper surface of the oblique dispersion sheet (2212).

2. The aramid fiber drying device according to claim 1, characterized in that: The guide roller (21) and the shaking hollow roller (22) are both rotatably mounted on the inner surface of the fiber drying device frame (1); the guide roller (21) is arranged on both sides of the shaking hollow roller (22); three groups of shaking hollow rollers (22) are arranged at equal intervals; a gear and chain assembly is arranged on the outer surface of one end of the guide roller (21) and the shaking hollow roller (22); and a motor for driving the guide roller (21) and the shaking hollow roller (22) to rotate is arranged on the outer side of the fiber drying device frame (1).

3. The aramid fiber drying device according to claim 2, characterized in that: A fixed convex tube (23) is arranged at the inner center of the shaking hollow roller (22), and both ends of the fixed convex tube (23) penetrate the inner wall of the fiber drying device frame (1). The fixed convex tube (23) is fixedly mounted on the side wall of the fiber drying device frame (1), and a heating tube (231) is fixedly mounted on the closed end of the fixed convex tube (23), and a hot air outlet (232) is provided at a protrusion on the side wall of the heating tube (231).

4. The aramid fiber drying device according to claim 3, characterized in that: A circulating fan (25) is provided on one side of the fiber drying device frame (1); a circulating air inlet pipe (24) is fixedly mounted on an open end of the fixed convex pipe (23); one end of the circulating air inlet pipe (24) is fixedly connected to an outlet air pipe end of the circulating fan (25); the hot air exhaust hood (31) is fixedly mounted on the upper inner side of the fiber drying device frame (1); and a degassing pipe (311) is fixedly mounted on the top of the hot air exhaust hood (31).

5. The aramid fiber drying device according to claim 4, characterized in that: A hot air inlet annular tube (321) is fixedly mounted on one end of the hot air condensation semi-annular tube (32) close to the closed end of the fixed convex tube (23), and a cooling air outlet annular tube (322) is fixedly mounted on one end of the hot air condensation semi-annular tube (32) close to the open end of the fixed convex tube (23). The cooling air outlet annular tube (322) and the hot air inlet annular tube (321) are both fixedly mounted on the inner surface of the fiber drying device frame (1), the lower end of the outlet tube (311) is fixedly connected to the inner wall of the hot air inlet annular tube (321), and a cooling air return tube (323) is fixedly mounted on the outer wall of the cooling air outlet annular tube (322), and the upper end of the cooling air return tube (323) is fixedly connected to the air inlet tube end of the circulation fan (25).

6. The aramid fiber drying device according to claim 5, characterized in that: A water vapor condensation chamber (325) is provided inside the hot air condensation semi-ring tube (32), a heat exchange fin (326) is fixedly installed inside the water vapor condensation chamber (325), a condensate collection groove (3251) is provided at the bottom of the water vapor condensation chamber (325), a condensate discharge pipe (324) is fixedly installed at the bottom of the condensate collection groove (3251), a condensate drip groove (3261) is provided at the lower end of the heat exchange fin (326), and condensation plates (3262) are evenly distributed on the surface of one side of the heat exchange fin (326).

7. The aramid fiber drying device according to claim 6, characterized in that: A cold air drying box (26) is arranged between the hot air condensation semi-ring tubes (32); the cold air drying box (26) is fixedly installed between the inner surfaces of the fiber drying device frame (1); a cold air inlet pipe (261) is fixedly installed at the bottom of the cold air drying box (26); an air inlet fan (262) is arranged on one side of the cold air inlet pipe (261); a triangular dispersion pad (263) is slidably installed above the inner surface of the cold air drying box (26); and a drying groove (2631) is provided at the upper end of the triangular dispersion pad (263).

8. A method for drying aramid fibers, implemented by the aramid fiber drying device according to claim 7, characterized in that: The following steps are involved: Step 1: The aramid fiber is conveyed and shaken for drying. The motor and the gear chain can drive the guide roller (21) and the shaking hollow roller (22) to rotate synchronously to guide the aramid fiber. The shaking hollow roller (22) continuously rotates the T-shaped fiber shaking frame (221) to cause the aramid fiber to shake continuously. The heating tube (231) can heat the air. The hot air is discharged through the hot air outlet (232) into the interior of the T-shaped fiber shaking frame (221) and discharged through the drying air outlet (2211) to dry the fiber from below. Step 2: Hot air circulates to discharge water vapor, and the circulating fan (25) works to absorb the airflow along the hot air discharge hood (31) into the inlet and outlet pipes (311), and disperses the airflow through the hot air introduction ring pipe (321) into the inside of the hot air condensation semi-ring pipe (32) for condensation to remove water vapor, and then is sucked into the circulating air inlet pipe (24) through the cooling air outlet ring pipe (322) and the cooling air return pipe (323) and re-enters the fixed convex pipe (23) for circulating heating and drying; Step 3: Alternative drying with cold air. The air inlet fan (262) cooperates with the cold air inlet pipe (261) to inject cold air into the cold air drying box (26), so that the cold air can effectively cool the fibers after being dried with hot air, and perform alternating drying with hot and cold air. Step 4: After three hot air dryings and two cold air dryings, the aramid fiber is output and waits for the next step of processing.

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