Efficient fiber cooling machine for chemical fiber materials

Abstract

The invention relates to the technical field of cooling equipment, in particular to a chemical fiber material efficient fiber cooling machine which comprises a rack, a fan, an air inlet box, a cooling bin fixedly installed on the rack, an upper box body arranged on the top of the cooling bin and an air return pipeline. The air distribution screen plate has the beneficial effects that a plurality of tongue-shaped hole structures are additionally arranged on the traditional air distribution screen plate densely provided with the ventilation holes, so that the airflow field distribution is changed, and the tongue-shaped hole structures can generate guide airflow with definite directionality; a tangential thrust towards the discharge port is applied to the bulk alkali fiber material which just enters the cooling bin and is easy to accumulate at the initial position of the feed port, so that the material can move forwards on the air distribution screen plate in a more continuous and stable manner, and uniform feeding from feeding to discharging is realized; the uniform feeding of the materials is the premise of sufficient and efficient heat exchange between the materials and the cooling airflow, so that the cooling efficiency and effect are improved, and meanwhile, the uniformity of the temperature of the materials during discharging is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooling equipment, in particular to a high-efficiency fiber cooling machine for chemical fiber materials. BACKGROUND

[0002] After the depolymerization of the alkali fiber, it needs to be cooled in the cooling machine and contacted with the circulating cold air to meet the temperature requirements of the subsequent yellowing reaction.

[0003] In actual operation, after the alkali fiber is fed through the feeding port, it often accumulates into a group at the initial feeding position of the air distribution net plate and is difficult to disperse quickly. The material either stagnates or suddenly rushes forward after accumulating to a certain amount, resulting in discontinuous movement and uneven material movement. This unstable flow state not only reduces the cooling efficiency, but also easily causes local overheating or insufficient cooling, affecting the subsequent processing effect of the alkali fiber; in long-term use, the filter system in the cooling machine is prone to overheating, which rapidly reduces the filter life, and therefore a cooling machine is needed to solve the problem. SUMMARY

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a high-efficiency fiber cooling machine for chemical fiber materials, comprising a rack, a fan, an air inlet box, a cooling bin fixedly installed on the rack, an upper box body provided at the top of the cooling bin, and a return air duct, wherein the upper box body is provided with a return air pipe and an exhaust pipe, the end of the return air duct away from the fan is communicated with the return air pipe, a filtering mechanism is arranged in the upper box body for filtering the gas flowing out of the cooling bin, one end of the return air pipe is fixedly connected with an annular frame, an annular air groove is formed in the inner wall of the annular frame, a plurality of air outlet tubes for cooling the filtering mechanism are fixedly installed on the annular frame, a second fixed frame is fixedly connected to the inner wall of the air outlet tube, a vortex fan is rotatably installed on the second fixed frame, one end of the vortex fan is fixedly connected with a rotating cylinder, a contact inclined surface is formed in the outer wall of the rotating cylinder, and a plurality of contact blocks arranged in a ring are fixedly connected to the contact inclined surface.

[0005] Preferably, a through groove is formed in the rotating cylinder, the through groove penetrates the rotating cylinder, and a spiral groove is formed in the inner wall of the through groove.

[0006] Preferably, one end of the air outlet tube is fixedly connected with a first fixed frame, a first guide rod is rotatably installed on the first fixed frame, a guide cover plate is fixedly connected to the first guide rod, a torsion spring is sleeved on the first guide rod, one end of the torsion spring is fixedly connected with the outer wall of the guide cover plate, and the other end of the torsion spring is fixedly connected with the outer wall of the first fixed frame.

[0007] Preferably, the inner wall of the air outlet cylinder is fixedly connected with a first fixed block, the inner wall of the first fixed block is slidably connected with a second guide rod, a return spring is sleeved on the second guide rod, one end of the return spring is fixedly connected with a fixed plate, the other end of the return spring is fixedly connected with the outer wall of the first fixed block, and the fixed plate is fixedly connected on the second guide rod.

[0008] Preferably, a first ball is rotatably installed at one end of the second guide rod, and a second ball is fixedly connected at the other end of the second guide rod, and the second ball is rotatably installed on the air guide cover plate.

[0009] Preferably, a ventilation net plate is arranged at the connection between the air inlet box and the cooling bin, the ventilation net plate is densely provided with ventilation holes, one side of the cooling bin is provided with an inlet, the other side is provided with an outlet, a plurality of tongue-shaped hole structures are further arranged on the ventilation net plate, the direction from the inlet to the outlet is defined as the material moving direction, and the tongue-shaped hole structures are used for changing the airflow direction to guide the material to move along the material moving direction.

[0010] Preferably, each of the tongue-shaped hole structures comprises a strip-shaped hole and a tongue-shaped member, the tongue-shaped member is protrudingly arranged on the upper surface of the ventilation net plate, one end of the tongue-shaped member is communicated with the strip-shaped hole, and the other end is arranged towards the outlet, the spacing between adjacent tongue-shaped hole structures along the material moving direction presents a non-strictly monotonic increasing trend, and the spacing between adjacent tongue-shaped hole structures along the direction perpendicular to the material moving direction is equal.

[0011] Preferably, a plurality of the tongue-shaped hole structures are arranged in rows on the ventilation net plate, and in the plurality of rows of the tongue-shaped hole structures arranged along the material moving direction, the tongue-shaped hole structures of adjacent rows are arranged in a staggered manner.

[0012] Preferably, the feeding auger and the discharging auger are further arranged, the output end of the feeding auger is communicated with the inlet, and the input end of the discharging auger is communicated with the outlet.

[0013] Preferably, one end of the air return pipeline is communicated with the cooling bin, and the other end is communicated with the air outlet end of the fan.

[0014] Compared with the prior art, the present application has the following advantages: 1. In the application, by adding a plurality of tongue-shaped hole structures on the traditional dense ventilation hole air distribution net plate, the air flow field distribution is changed, the tongue-shaped hole structure can produce a directional guiding air flow, a tangential thrust towards the discharge port is applied to the lumpy alkali fiber material which is easy to accumulate at the initial position of the feed inlet when entering the cooling bin, so that the material can move forward on the air distribution net plate in a more continuous and stable manner, thereby realizing uniform material movement from feeding to discharging. The uniform movement of the material is the prerequisite for sufficient and efficient heat exchange with the cooling air flow, thus improving the cooling efficiency and effect, while ensuring the uniformity of the material temperature when discharging, which is beneficial to improving the stability of the subsequent yellowing process and the product quality.

[0015] 2. In the application, when the first ball slides along the abutting inclined surface, the first ball will intermittently abut against the surface of the abutting block. The abutment causes the first ball to be stressed in a direction away from the abutting block, so that the second guide rod moves a small distance with the second ball and the air guide cover plate, prompting the air guide cover plate to perform small amplitude shaking opening and closing during the large amplitude opening and closing operation. The shaking opening and closing operation can make the air flow guided by the air guide cover plate perform small amplitude reciprocating sweeping operation, further uniformly dissipating heat from the surface of the filtering mechanism.

[0016] 3. In the application, when the rotating cylinder rotates, the air flow blown into the air outlet cylinder through the through slot, and the air flow in the through slot blows towards the spiral groove in the through slot. After the air flow passes through the guide of the spiral groove recess, it forms a spiral air flow and blows out of the air outlet cylinder. The spiral air flow can further increase the heat dissipation effect of the filtering mechanism.

[0017] 4. As the air flow is output from the air outlet cylinder port towards the outer wall of the filtering mechanism, the air guide cover plate is in an intermittent swinging state. The swinging of the air guide cover plate changes the angle of the air flow blown out of the air outlet cylinder, so that the air flow can directly blow on each position of the surface of the filtering mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic view of the overall structure of the application from the side; Figure 2 It is a schematic view of the structure of the air distribution net plate of the application; Figure 3 It is a schematic view of the overall structure of the application from the front; Figure 4 It is a schematic view of the Figure 2 It is a schematic view of the local enlarged structure of A in the application; Figure 5 It is a schematic view of the structure of the tongue-shaped hole structure of the application; Figure 6 It is a schematic view of the upper box structure of the application; Figure 7 It is a schematic view of the upper box structure of the application from the top; Figure 8 Fig. 2 is a top view of the upper box of the present application; Figure 9 Fig. 3 is a schematic view of the air outlet tube and its surrounding structure of the present application; Figure 10 Fig. 4 is a sectional view of the air outlet tube of the present application; Figure 11 Fig. 5 is a schematic view of the air guide cover plate structure of the present application; Figure 12 Fig. 6 is a schematic view of the air guide cover plate structure of the present application; Figure 11 Fig. 7 is an enlarged view of the middle B of Fig. 6.

[0019] In the drawings, the components represented by each reference numeral are listed as follows: 1, frame; 2, fan; 3, air inlet box; 4, cooling bin; 41, feeding port; 42, discharging port; 5, air distribution net plate; 51, ventilation hole; 52, tongue-shaped hole structure; 521, strip-shaped hole; 522, tongue-shaped member; 6, feeding auger; 7, discharging auger; 8, upper box; 81, filtering mechanism; 82, air return pipe; 83, air exhaust pipe; 9, air return duct; 10, annular frame; 11, annular air chute; 12, air outlet tube; 13, first fixed frame; 14, first guide rod; 15, torsion spring; 16, air guide cover plate; 17, second fixed frame; 18, vortex fan; 19, rotating tube; 20, through groove; 21, helical groove; 22, abutting inclined surface; 23, abutting block; 24, first fixed block; 25, return spring; 26, fixed plate; 27, first ball bearing; 28, second guide rod; 29, second ball bearing. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0021] Embodiment one: please refer to Figure 1 - Figure 12 A high-efficiency fiber cooling machine for chemical fiber materials, comprising a frame 1, a fan 2, an air inlet box 3, a cooling bin 4 fixedly installed on the frame 1, an upper box 8 provided at the top of the cooling bin 4, and an air return duct 9, wherein an air distribution net plate 5 is installed at the connection between the air inlet box 3 and the cooling bin 4, the air distribution net plate 5 is densely provided with ventilation holes 51 penetrating from bottom to top, a feeding port 41 is formed on one side of the cooling bin 4, and a discharging port 42 is formed on the other side of the cooling bin 4. In this embodiment, it is necessary to note that the fan 2 blows cold air.

[0022] Refer to Figures 2-4The air distribution net plate 5 is further provided with a plurality of tongue-shaped hole structures 52. A direction from the feeding port 41 to the discharging port 42 is defined as a material moving direction. The tongue-shaped hole structures 52 are used to change the direction of the air flow to guide the material to move along the material moving direction, and the material moving direction is the same as the length direction of the air distribution net plate 5.

[0023] With reference to Figures 3-5 Each tongue-shaped hole structure 52 includes a strip-shaped hole 521 and a tongue-shaped member 522. The tongue-shaped member 522 is integrally formed and protrudes from the upper surface of the air distribution net plate 5. The two ends of the tongue-shaped member 522 are penetrated, one end is communicated with the strip-shaped hole 521, and the other end is bent towards the discharging port 42. In this way, the strip-shaped hole 521 provides a basic air flow channel, and the tongue-shaped member 522 protruding from the upper surface of the net plate is like a micro nozzle or a flow guide cover, which directs the air flow from the strip-shaped hole 521 to be sprayed from the end towards the discharging port 42, thereby achieving the pushing of the material. The physical protrusion of the tongue-shaped member 522 itself also mechanically guides the accumulation and sliding path of the material, which is complementary to the aerodynamic force, together ensuring that the alkali fiber material can be continuously and stably pushed to the discharging port 42, avoiding the formation of local retention and dead zones.

[0024] With reference to Figure 2 And Figure 4 The spacing between the adjacent tongue-shaped hole structures 52 along the material moving direction presents a non-strictly monotonic increasing trend, that is, the spacing is allowed to increase or remain unchanged, but not to decrease. Through this layout structure, the gradient distribution of the aerodynamic force on the air distribution net plate 5 is realized. Near the feeding port 41, the material just enters and accumulates thickly, at this time, the dense tongue-shaped hole structure 52 can provide a stronger and denser initial pushing force, effectively pushing and dispersing the material group. As the material moves forward and gradually thins out, the required maintenance pushing force decreases, so the arrangement of the tongue-shaped hole structure 52 tends to be sparse. The tongue-shaped hole structure 52 adopts this “dense in front and sparse in back” layout, which conforms to the actual physical state change of the material in the cooling bin 4, and facilitates the material to receive more balanced pushing force in the entire moving path, thereby obtaining a smooth and controllable flow speed.

[0025] With reference to Figure 2 And Figure 4 The spacing between the adjacent tongue-shaped hole structures 52 in the direction perpendicular to the material moving direction is equal. In this way, it means that the power source for guiding and pushing the material is uniformly distributed in the width direction of the entire air distribution net plate 5, which can effectively prevent the material from moving too fast in the middle and too slow on the sides, or from gathering to one side, and ensure the uniformity of the material bed thickness in the transverse direction, thereby facilitating the consistency of the overall cooling effect.

[0026] With reference to Figure 2 And Figure 4The plurality of tongue-shaped hole structures 52 are arranged in columns on the air distribution net plate 5, and in the plurality of columns of tongue-shaped hole structures 52 arranged along the material flow direction, the tongue-shaped hole structures 52 in adjacent columns are arranged staggered with each other. The staggered arrangement refers to that in the adjacent two columns along the material flow direction, the tongue-shaped hole structures 52 in the latter column are directly opposite the gap between the adjacent two tongue-shaped hole structures 52 in the former column in the direction perpendicular to the material flow direction. In this way, the airflow action area generated by the tongue-shaped hole structures 52 in the latter column can fill the gap of the airflow action of the former column. With this arrangement of the tongue-shaped hole structures 52, the material bed is equivalent to being pushed in a non-dead zone and interlaced manner, and the area where the pushing force is weakened due to the blind area directly behind the former column of tongue-shaped hole structures 52 is eliminated, thereby promoting the overall synchronization and smooth material flow of the material.

[0027] With reference to Figure 1 and Figure 3 To realize continuous production and automatic operation, improve the overall production efficiency and operation stability of the cooling machine, the cooling machine further comprises a feeding auger 6 and a discharging auger 7, and the output end of the feeding auger 6 is in communication with the feeding port 41, and the input end of the discharging auger 7 is in communication with the discharging port 42.

[0028] With reference to Figure 1 and Figure 3 The cooling machine further comprises an upper box 8 and a return air duct 9, the upper box 8 is fixed to the top of the cooling bin 4 and the inner cavities of the two are in communication, the side wall of the upper box 8 is provided with a return air pipe 82 and an exhaust air pipe 83, one end of the return air duct 9 is in communication with the return air pipe 82 of the upper box 8, and the other end of the return air duct 9 is in communication with the air outlet end of the fan 2. The upper box 8 is provided with a filtering mechanism 81, which can select any filtering element such as a filter cartridge or a filter bag that meets the use requirements, for filtering the gas flowing out of the cooling bin 4. In this way, a controllable and unused low-temperature cold air is introduced through the return air duct 9 to actively intervene and adjust the gas environment in the upper box 8. The introduced cold air is supplemented through the return air pipe 82 and mixed with the gas rising from the cooling bin 4, which carries alkali fiber dust and has a higher temperature, thereby reducing the overall gas environment temperature in the upper box 8, avoiding the aging or damage of the filter material caused by the high-temperature gas, prolonging the service life of the filtering mechanism 81 and maintaining its smoothness. At the same time, the supplement of the low-temperature cold air increases the total amount and flow kinetic energy of the air flow in the upper box 8, which helps to more effectively transport the suspended alkali fiber dust to the filtering mechanism 81, prevents the accumulation of the suspended alkali fiber dust on the top of the upper box 8, and maintains the smoothness of the gas passage. In addition, by adjusting the air volume of the supplemented cold air, the temperature of the gas discharged from the exhaust air pipe 83 can be accurately controlled to meet the requirements of environmental protection emission or subsequent treatment, thereby avoiding the problems that may be caused by directly discharging high-temperature gas.

[0029] The cooling machine changes the air flow field distribution by additionally arranging a plurality of tongue-shaped hole structures 52 on the traditional air distribution net plate 5 with densely arranged air holes 51. The tongue-shaped hole structure 52 can generate a directional guiding air flow, and a tangential thrust force is applied to the lumpy alkali fiber material which is prone to accumulate at the initial position of the feeding port 41 to make the material move forward on the air distribution net plate 5 in a more continuous and stable manner, so as to realize uniform material movement during the whole process from feeding to discharging. The uniform material movement is a prerequisite for the material to exchange heat with the cooling air flow sufficiently and efficiently, thereby improving the cooling efficiency and effect, and ensuring the uniformity of the material temperature when discharging, which is beneficial to improve the stability of the subsequent yellowing process and the product quality.

[0030] Embodiment two: This embodiment is an improvement based on embodiment one. For details, please refer to Figure 1 Figure 12 The upper box body 8 is provided with a return air pipe 82 and an exhaust pipe 83, and the end of the return air pipe 9 away from the fan 2 is communicated with the return air pipe 82. The upper box body 8 is provided with a filtering mechanism 81 for filtering the gas flowing out of the cooling bin 4. One end of the return air pipe 82 is fixedly connected with an annular frame 10. The inner wall of the annular frame 10 is provided with an annular air groove 11. A plurality of air outlet tubes 12 for cooling the filtering mechanism 81 are fixedly installed on the annular frame 10. The inner wall of the air outlet tube 12 is fixedly connected with a second fixed frame 17. The second fixed frame 17 is rotatably installed with a vortex fan 18. One end of the vortex fan 18 is fixedly connected with a rotating cylinder 19. The outer wall of the rotating cylinder 19 is provided with a contact inclined surface 22. The contact inclined surface 22 is fixedly connected with a plurality of contact blocks 23 arranged uniformly in a ring shape. The contact blocks 23 are provided in a ball block shape. The rotating cylinder 19 is provided with a through groove 20 penetrating through the rotating cylinder 19. The inner wall of the through groove 20 is provided with a spiral groove 21. One end of the air outlet tube 12 is fixedly connected with a first fixed frame 13. The first fixed frame 13 is rotatably installed with a first guide rod 14. The first guide rod 14 is fixedly connected with a guide cover plate 16. The first guide rod 14 is sleeved with a torsion spring 15. One end of the torsion spring 15 is fixedly connected with the outer wall of the guide cover plate 16. The other end of the torsion spring 15 is fixedly connected with the outer wall of the first fixed frame 13. The inner wall of the air outlet tube 12 is fixedly connected with a first fixed block 24. The inner wall of the first fixed block 24 is slidably connected with a second guide rod 28. The second guide rod 28 is sleeved with a return spring 25. One end of the return spring 25 is fixedly connected with a fixed plate 26. The other end of the return spring 25 is fixedly connected with the outer wall of the first fixed block 24. The fixed plate 26 is fixedly connected to the second guide rod 28. One end of the second guide rod 28 is rotatably installed with a first ball 27. The other end of the second guide rod 28 is fixedly connected with a second ball 29. The second ball 29 is rotatably installed on the guide cover plate 16. ​

[0031] In this embodiment: When using this high-efficiency fiber cooler, the airflow enters the annular air duct 11 inside the annular frame 10 through the return air duct 82. The airflow flows and fills the annular air duct 11, and the airflow drives multiple vortex fans 18 to rotate. When the vortex fans 18 rotate, they drive the rotating cylinder 19 at the end to rotate synchronously. When the rotating cylinder 19 rotates, the first ball 27 slides along the surface of the contact slope 22. Since the contact slope 22 is set as an inclined surface, when the first ball 27 slides along the outer wall of the contact slope 22, it is guided by the inclined surface, so that the first ball 27... The second guide rod 28 is subjected to force in a direction away from the inclined plane 22, causing the second guide rod 28, the second ball bearing 29, and the air guide cover 16 to be subjected to force. This causes the air guide cover 16 to rotate along its rotation point with the first guide rod 14. During the rotation, the torsion spring 15 is twisted, putting it into a stored state. At this time, as the airflow is output from the outlet 12 port to the outer wall of the filter mechanism 81, the air guide cover 16 is in a state of intermittent oscillation. The oscillation of the air guide cover 16 will change the angle of the airflow ejected from the outlet 12, so that the airflow can directly blow to various positions on the surface of the filter mechanism 81.

[0032] As the first ball bearing 27 slides along the surface of the inclined surface 22, it intermittently contacts the surface of the contact block 23. This contact causes the first ball bearing 27 to be subjected to force in a direction away from the contact block 23, which causes the second guide rod 28 to move the second ball bearing 29 and the air guide cover 16 a short distance. This causes the air guide cover 16 to vibrate slightly during the large opening and closing action. This vibrating opening and closing action allows the airflow guided by the air guide cover 16 to perform a small reciprocating sweeping operation, further dissipating heat evenly on the surface of the filter mechanism 81.

[0033] When the rotating cylinder 19 rotates, the airflow blown in from the air outlet 12 will be blown out through the through groove 20. The airflow through the through groove 20 will be blown towards the spiral groove 21 in the through groove 20. After being guided by the groove of the spiral groove 21, the airflow forms a spiral airflow and blows out of the air outlet 12. The spiral airflow can further increase the heat dissipation effect on the filter mechanism 81.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A high-efficiency fiber cooler for chemical fiber materials, comprising a frame (1), a fan (2), an air inlet box (3), a cooling chamber (4) fixedly installed on the frame (1), an upper box (8) disposed on the top of the cooling chamber (4), and a return air duct (9), characterized in that: The upper housing (8) is provided with a return air duct (82) and an exhaust air duct (83), and the end of the return air duct (9) away from the fan (2) is connected to the return air duct (82). The upper housing (8) is provided with a filter mechanism (81) for filtering the gas flowing out from the cooling chamber (4). One end of the return air duct (82) is fixedly connected to an annular frame (10). The inner wall of the annular frame (10) is provided with an annular air groove (11). Multiple air grooves are fixedly installed on the annular frame (10). The air outlet (12) is used for cooling the filter mechanism (81). A second fixed frame (17) is fixedly connected to the inner wall of the air outlet (12). A vortex fan (18) is rotatably installed on the second fixed frame (17). A rotating cylinder (19) is fixedly connected to one end of the vortex fan (18). A contact slope (22) is opened on the outer wall of the rotating cylinder (19). A ring of evenly arranged contact blocks (23) is fixedly connected to the contact slope (22). The contact blocks (23) are set in the shape of spherical blocks.

2. The high-efficiency fiber cooler for chemical fiber materials according to claim 1, characterized in that: A through groove (20) is provided on the rotating cylinder (19), the through groove (20) penetrates the rotating cylinder (19), and a spiral groove (21) is provided on the inner wall of the through groove (20).

3. The high-efficiency fiber cooler for chemical fiber materials according to claim 1, characterized in that: One end of the air outlet (12) is fixedly connected to a first fixed frame (13), a first guide rod (14) is rotatably mounted on the first fixed frame (13), a guide cover plate (16) is fixedly connected to the first guide rod (14), a torsion spring (15) is sleeved on the first guide rod (14), one end of the torsion spring (15) is fixedly connected to the outer wall of the guide cover plate (16), and the other end of the torsion spring (15) is fixedly connected to the outer wall of the first fixed frame (13).

4. The high-efficiency fiber cooler for chemical fiber materials according to claim 1, characterized in that: The inner wall of the air outlet (12) is fixedly connected to a first fixing block (24), and the inner wall of the first fixing block (24) is slidably connected to a second guide rod (28). A reset spring (25) is sleeved on the second guide rod (28). One end of the reset spring (25) is fixedly connected to a fixing plate (26), and the other end of the reset spring (25) is fixedly connected to the outer wall of the first fixing block (24). The fixing plate (26) is fixedly connected to the second guide rod (28).

5. The high-efficiency fiber cooler for chemical fiber materials according to claim 4, characterized in that: One end of the second guide rod (28) is rotatably mounted with a first ball bearing (27), and the other end of the second guide rod (28) is fixedly connected with a second ball bearing (29). The second ball bearing (29) is rotatably mounted on the air guide cover (16).

6. The high-efficiency fiber cooler for chemical fiber materials according to claim 1, characterized in that: The air inlet box (3) and the cooling chamber (4) are connected by an air distribution mesh plate (5). The air distribution mesh plate (5) is densely covered with ventilation holes (51). The cooling chamber (4) has an inlet (41) on one side and an outlet (42) on the other side. The air distribution mesh plate (5) is also provided with multiple tongue-shaped hole structures (52). The direction from the inlet (41) to the outlet (42) is defined as the material direction. The tongue-shaped hole structure (52) is used to change the airflow direction to guide the material to move along the material direction.

7. The high-efficiency fiber cooler for chemical fiber materials according to claim 6, characterized in that: Each of the tongue-shaped hole structures (52) includes a strip hole (521) and a tongue-shaped component (522). The tongue-shaped component (522) protrudes from the upper surface of the air distribution mesh plate (5), and one end of the tongue-shaped component (522) is connected to the strip hole (521), while the other end is set towards the discharge port (42). The spacing between adjacent tongue-shaped hole structures (52) along the material direction shows a non-strictly monotonically increasing trend, while the spacing between adjacent tongue-shaped hole structures (52) along the direction perpendicular to the material direction is equal.

8. A high-efficiency fiber cooler for chemical fiber materials according to claim 6, characterized in that: Multiple tongue-shaped hole structures (52) are arranged in rows on the air distribution mesh plate (5), and in the multiple rows of tongue-shaped hole structures (52) arranged along the material direction, the tongue-shaped hole structures (52) in adjacent rows are staggered.

9. A high-efficiency fiber cooler for chemical fiber materials according to claim 1, characterized in that: It also includes a feeding auger (6), the output end of which is connected to the feed inlet (41), and a discharging auger (7), the input end of which is connected to the discharge outlet (42).

10. A high-efficiency fiber cooler for chemical fiber materials according to claim 1, characterized in that: One end of the return air duct (9) is connected to the cooling chamber (4), and the other end is connected to the air outlet of the fan (2).

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