Aramid fiber washing device

Abstract

The utility model provides an aramid fiber washing device. The aramid fiber washing device comprises a washing tank, a petal roller, a porous roller and a godet, the petal roller comprises a roller center shaft and petal structural bodies arranged on the roller center shaft; the porous roller comprises an integrated circular roller structure, and a plurality of uniformly distributed circular holes are formed in a cylinder body of the circular roller; the roller central shaft and the shaft sleeve in the porous roller are mutually supported and connected; the petal roller and the porous roller are both immersed below the liquid level of the rinsing bath; the godet comprises an upper godet and a lower godet; the upper godet roller is arranged above the liquid level of the rinsing bath; and the lower godet roller is arranged below the liquid level of the rinsing bath. The aramid fiber washing device is good in cleaning effect on fiber tows, small in occupied area, low in operation cost and suitable for spinning and washing aramid fibers (including aramid fibers I, aramid fibers II and aramid fibers III), carbon fibers, acrylic fibers and other solutions.

Description

Technical Field

[0001] The utility model relates to the technical field of water washing devices, in particular to an aramid fiber water washing device. Background Art

[0002] Aramid fiber is obtained by low-temperature solution polymerization of phenylenediamine (or heterocyclic diamine) and terephthaloyl chloride, and then the spinning dope is prepared by one-step or two-step method. It is coagulated and formed by wet spinning (or dry-jet wet spinning), and then through post-treatment processes such as drawing, water washing, drying, heat setting and other steps to prepare high-performance fibers. It belongs to the world's three major high-performance fibers together with carbon fiber and ultra-high molecular weight polyethylene fiber, and has excellent properties of flame retardancy, high temperature resistance, electrical insulation, high strength, high modulus and corrosion resistance, and is widely used in the fields of safety protection, environmental protection, information communication, rail transit, electronic and electrical, aerospace and other fields.

[0003] In the aramid fiber spinning process, the spinning dope is metered and extruded into the coagulation bath solution. Due to the solvent concentration difference between the bath solution and the spinning filament, double diffusion occurs here to form the nascent fiber. In order to effectively prevent the skin-core structure of the nascent fiber in spinning, the nascent fiber after coagulation and forming still contains a certain amount of solvent components. Therefore, it is necessary to pass through a water washing device to further remove the solvent components contained therein.

[0004] Whether it is dry-jet wet spinning or wet spinning, it is necessary to fully wash and remove the solvent components contained in the fiber tow. If the water washing is not thorough, organic solvents will remain in the fiber tow, ultimately affecting the fiber performance and the safety of use. Therefore, it is crucial to select a suitable water washing process, which can efficiently remove the residual solvent components in the fiber tow and eliminate the destructive effect on the fiber tow. There are many factors affecting the water washing effect, such as the internal structure of the fiber, water washing temperature, water washing time, the form of the water washing equipment, etc., which directly affect the water washing effect. For the spinning water washing process, high water washing efficiency is required.

[0005] CN109881403A discloses a fiber water washing device and a multi-stage fiber water washing system. The fiber water washing device includes a water washing tank, an upper wire guiding roller assembly and a lower wire guiding roller assembly. The lower wire guiding roller assembly includes at least one lower guide roller, and the upper wire guiding roller assembly includes at least two upper guide rollers. The fiber water washing device includes a lifting mechanism for adjusting the height position of the lower guide roller. The lifting mechanism is drivingly connected to the lower wire guiding roller assembly, and the lower wire guiding roller assembly is provided with a wire splitting component for combing and dispersing the fiber into a plurality of fiber bundles perpendicular to the rotation axis of the lower guide roller. This device can simply realize the assembly between the fiber and the guide roller in the water washing tank, and at the same time reduce the entanglement between the fibers during the water washing process, reduce the probability of fiber breakage, and improve the fiber water washing effect.

[0006] CN209024800U discloses a fiber water washing device. The water washing tank is in a long tank structure, and a water inlet and a water outlet are respectively arranged on the bottom side of the front end and the rear end. Each water washing tank is arranged in a column from top to bottom. A communicating pipe is arranged between two adjacent water washing tanks. The top end and the bottom end of the communicating pipe are respectively communicated with the water outlet of the water washing tank above and the water inlet of the water washing tank below. Each water washing tank forms a serpentine structure that is sequentially communicated; a tow guide roller is arranged at each end of the water washing tank, and each tow positioning rod is fixedly connected to the inner side wall of the water washing tank. The fiber tow is sequentially arranged around each tow guide roller and is pressed below each tow positioning rod. The washing water flows downward from the uppermost water washing tank, and the fiber tow moves upward from the lowermost water washing tank. The relative movement of the washing water and the fiber tow makes the washing more sufficient, improves the water washing effect, and thus reduces the water consumption.

[0007] CN113512836A discloses a water washing method for textile hemp fibers. This method is carried out in cooperation with a hemp fiber water washing device. The hemp fiber water washing device includes a water pumping machine shell. A power machine shell is arranged opposite to the water pumping machine shell. There are two main rotating shafts between the power machine shell and the water pumping machine shell. A water pumping mechanism is arranged between each main rotating shaft and the water pumping machine shell. An electric motor is arranged on the power machine shell. The output end of the electric motor is fixedly provided with a driving rotating shaft. The driving rotating shaft is connected to the main rotating shaft by belt drive. The two main rotating shafts are in gear meshing transmission. A drum is fixedly arranged on each main rotating shaft. A sliding rubbing mechanism is arranged on each drum. Six reciprocatingly slidable outer sliding arc plates are evenly arranged on the outer circumferential surface of each drum at an angle of 60 degrees. Each outer sliding arc plate is provided with a one-way drainage mechanism. A water channel and a water storage mechanism are arranged inside each drum. A control button mechanism is arranged on the water pumping machine shell and the power machine shell.

[0008] However, the above water washing device still has problems such as complex and heavy equipment structure, low water washing efficiency, and high operating costs.

[0009] Therefore, there is an urgent need to provide an aramid fiber water washing device to effectively improve the water washing effect of fibers while reducing investment and operating costs without consuming a large amount of cleaning water. Utility Model Content

[0010] In view of the problems existing in the prior art, the present utility model provides an aramid fiber water washing device, which uses a petal roller and a porous roller arranged in the water washing tank to apply vibration and transmission force to the fiber tow, enhancing the cleaning effect on the fiber, improving the cleaning efficiency, and saving water and energy.

[0011] To achieve this purpose, the present utility model adopts the following technical solutions:

[0012] The present utility model provides an aramid fiber water washing device, which includes a water washing tank, a petal roller, a porous roller, and a wire guiding roller.

[0013] The petal roller includes a roller central shaft and a petal structure arranged on the roller central shaft; the porous roller includes an integrated circular drum structure, and a number of uniformly distributed round holes are arranged on the circular drum body; the petal roller is arranged inside the porous roller; the roller central shaft and the inner bushing of the porous roller support and connect with each other; both the petal roller and the porous roller are immersed below the liquid level of the water washing tank; the wire guiding roller includes an upper wire guiding roller and a lower wire guiding roller; the upper wire guiding roller is arranged above the liquid level of the water washing tank; the lower wire guiding roller is arranged below the liquid level of the water washing tank.

[0014] In the aramid fiber water washing device of the present utility model, a petal roller, a porous roller and a wire guiding roller are arranged in the water washing tank, and vibration and transmission force are applied to the fiber tow passing through the water washing tank to achieve efficient cleaning and remove the solvent in the fiber tow. The aramid fiber water washing device of the present utility model has a small floor area, high washing efficiency, good washing effect, energy saving and water saving, and low cleaning cost.

[0015] Driven by a frequency conversion motor, the petal roller of the present utility model generates a vortex power on the washing water in the water washing tank, drives the washing water in the water washing tank to spray and collide on the surface of the porous roller or attract and drive the washing water in the tank to generate vibration, so as to achieve a better washing effect on the fiber tow in the tank; the rotation speed of the petal roller is adjustable and controllable according to the rotation speed of the frequency conversion motor. The greater the rotation speed, the greater the kinetic energy and the better the washing effect; the wire guiding roller, the petal roller and the porous roller are immersed below the water washing liquid level to prevent the spray caused by the high rotation speed of the petal roller from affecting the on-site operation environment; the petal roller can also rotate in both forward and reverse directions.

[0016] The aramid fiber water washing device of the present utility model is not limited to washing aramid fiber spinning. Among them, aramid fibers include aramid I, aramid II and aramid III, and also include other similar solution spinning production processes that require a water washing process to remove the solvent component in the fiber tow, and also include other cleaning processes in other industries that also require water washing to achieve the purpose of removing impurities on the surface of the filaments.

[0017] Preferably, the wire guiding roller includes an upper wire guiding roller and a lower wire guiding roller.

[0018] Preferably, the upper wire guiding roller is arranged above the liquid level of the water washing tank; the lower wire guiding roller is arranged below the liquid level of the water washing tank.

[0019] The present utility model does not specifically limit the setting position of the lower wire guiding roller in the water washing tank. As long as it can play a role in guiding the wire and effectively increase the immersion length of the fiber tow in the water washing tank, and then achieve a better washing effect. The diameter of the wire guiding roller, the effective distance between adjacent wire guiding rollers and the winding angle can be set according to the actual situation to avoid problems such as fiber tow breakage and winding on the roller.

[0020] Preferably, the number of the water washing tanks is at least two, for example, it can be two, three, five, eight, ten, etc. In practical applications, the number of water washing tanks can be increased or decreased according to the actual water washing effect.

[0021] Preferably, the water washing tanks are arranged horizontally on the frame or arranged in a stepped manner on the frame. The stepped arrangement is convenient for the washing water to overflow to another water washing tank, saving the kinetic energy transmission.

[0022] Preferably, when the water washing tanks are arranged in a stepped manner on the frame, the adjacent water washing tanks are connected by an overflow plate. The design of the overflow plate can save the storage tank space for collecting the washing water and the energy consumption of the centrifugal pump for transporting the washing water. At the same time, the design of the overflow plate can enable the fiber tow to be rinsed retrograde with the overflow water by fitting with the overflow plate, further improving the water washing effect.

[0023] Preferably, a temperature detection device is arranged in the water washing tank. This temperature detection device is interlocked with the washing water heat exchanger to ensure the uniformity and stability of the water washing temperature, so as to achieve a better washing effect.

[0024] Preferably, the aramid fiber water washing device further includes a pressure roller and a wire guiding roller for outgoing wire.

[0025] Preferably, the pressure roller is arranged above the liquid level of the last water washing tank and is vertically arranged on the wire guiding roller for outgoing wire. The fiber tow passes through here and the moisture contained therein is removed by extrusion, so as to reduce the workload of the subsequent process and save energy consumption; the up and down movement of the pressure roller adopts a double-support and double-cylinder pressurization method, and pressurization can be carried out from the upper part of the wire guiding roller, considering the convenience of operation.

[0026] Preferably, the aramid fiber water washing device further includes a washing water collecting tank connected to the first water washing tank. The washing water collected in the washing water collecting tank is used to prepare and supplement the coagulation bath solution in the previous coagulation or drawing process, so as to recycle the washing water and save water resources.

[0027] Preferably, the aramid fiber water washing device further includes a water inlet, a water outlet, a washing water collecting tank and a washing water delivery pump.

[0028] In the present utility model, the water inlet is arranged on the side wall of the last water washing tank; the water outlet is arranged on the side wall of the first water washing tank. The water outlet is connected to the washing water collecting tank through a water outlet pipe. The washing water collecting tank is also connected to a drainage pipe, and the drainage is transported to the coagulation and drawing bath process. A washing water delivery pump is arranged on the drainage pipe.

[0029] The using method of the aramid fiber water washing device of the present utility model includes the following steps:

[0030] The fiber bundle to be cleaned passes through the upper godet roller, the lower godet roller and the porous roller in sequence, and is washed in multiple water washing tanks to remove the solvent components therein by increasing the immersion length of the fiber bundle; during the washing process in the water washing tank, the rotation of the petal roller effectively drives the washing water in the tank to simultaneously penetrate through the porous roller to form a water washing resonance and penetration, and vibrates and rubs the fiber bundle.

[0031] The washing water includes pure water with a temperature of 20 - 60 °C; the washing water is recycled by flowing back from the last water washing tank to the first water washing tank, and the flow rate is 1 - 2 m 3 / h; the washing water is discharged from the first water washing tank, then enters the washing water collection tank, and is recycled according to the process requirements.

[0032] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0033] (1) The aramid fiber water washing device provided by the present utility model drives the washing water to generate a vibration and rubbing effect through the kinetic energy of the petal roller, and can obtain an efficient washing effect. The solvent removal rate of the fiber bundle to be cleaned is 2 - 3 times that of the traditional water washing machine.

[0034] (2) The aramid fiber water washing device provided by the present utility model is a water-saving and energy-saving practical water washing device, with low operating costs, small floor area, and less investment, and is suitable for the application of water washing of aramid fibers (including aramid I, aramid II, aramid III), carbon fibers, acrylic fibers, and other solution-spun fibers. Description of the Drawings

[0035] Figure 1 It is a schematic diagram of the aramid fiber water washing device provided in the specific embodiment of the present utility model.

[0036] Figure 2 It is a schematic diagram of the structure of the petal roller in the specific embodiment of the present utility model.

[0037] Figure 3 It is a schematic diagram of the structure of the porous roller in the specific embodiment of the present utility model.

[0038] Figure 4 It is a schematic diagram of the combined structure of the petal roller and the porous roller in the specific embodiment of the present utility model.

[0039] In the figure: 1 - water washing tank; 1 - 1 first water washing tank; 1 - 2 second water washing tank; 1 - 3 third water washing tank; 1 - 4 fourth water washing tank; 1 - 5 fifth water washing tank;

[0040] 2 - petal roller; 3 - porous roller; 3 - 1 first porous roller; 3 - 2 second porous roller; 3 - 3 third porous roller; 3 - 4 fourth porous roller; 3 - 5 fifth porous roller;

[0041] 4-roll center shaft; 5-petal structure

[0042] 6-upper wire guide roll; 6-1 first upper wire guide roll; 6-2 second upper wire guide roll; 6-3 third upper wire guide roll; 6-4 fourth upper wire guide roll; 6-5 fifth upper wire guide roll

[0043] 7-lower wire guide roll; 7-1 first lower wire guide roll; 7-2 second lower wire guide roll; 7-3 third lower wire guide roll; 7-4 fourth lower wire guide roll; 7-5 fifth lower wire guide roll; 7-6 sixth lower wire guide roll; 7-7 seventh lower wire guide roll; 7-8 eighth lower wire guide roll; 7-9 ninth lower wire guide roll; 7-10 tenth lower wire guide roll; 7-11 eleventh lower wire guide roll; 7-12 twelfth lower wire guide roll; 7-13 thirteenth lower wire guide roll; 7-14 fourteenth lower wire guide roll; 7-15 fifteenth lower wire guide roll

[0044] 8-frame; 9-pressure roll; 10-washing water collection tank; 11-round hole; 12-wire outlet guide roll Specific implementation mode

[0045] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific implementation modes

[0046] The present utility model will be further described in detail below. However, the following examples are only simple examples of the present utility model and do not represent or limit the scope of the protection of the present utility model. The scope of protection of the present utility model is subject to the claims

[0047] It should be understood that in the description of the present utility model, the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more

[0048] It should be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "set", "connected", and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] Those skilled in the art should understand that the present utility model necessarily includes necessary pipelines, conventional valves, and general pump equipment for realizing the complete process. However, the above contents do not belong to the main inventive points of the present utility model. Those skilled in the art can add and arrange them by themselves based on the process flow and equipment structure selection. The present utility model does not have special requirements and specific limitations on this.

[0050] As a specific embodiment of the present utility model, a kevlar fiber washing device is provided, and its schematic diagram is as Figure 1 shown.

[0051] The kevlar fiber washing device includes a washing tank 1, a petal roller 2, a porous roller 3, and a wire guiding roller.

[0052] The petal roller 2 includes a roller central shaft 4 and a petal structure body 5 arranged on the roller central shaft 4, and its structural schematic diagram is as Figure 2 shown.

[0053] The porous roller 3 includes an integrated circular drum structure, and a plurality of uniformly distributed round holes 11 are arranged on the circular drum body, and its structural schematic diagram is as Figure 3 shown.

[0054] The petal roller 2 is arranged inside the porous roller 3; the roller central shaft 4 and the inner bushing of the porous roller 3 are supported and connected to each other, and its structural schematic diagram is as Figure 4 shown.

[0055] Both the petal roller 2 and the porous roller 3 are immersed below the liquid level of the washing tank 1.

[0056] The number of the washing tanks 1 is 5, which are respectively named the first washing tank 1-1, the second washing tank 1-2, the third washing tank 1-3, the fourth washing tank 1-4, and the fifth washing tank 1-5. Correspondingly, the number of the petal rollers 2 and the porous rollers 3 is both 5, which are respectively named the first porous roller 3-1, the second porous roller 3-2, the third porous roller 3-3, the fourth porous roller 3-4, and the fifth porous roller 3-5.

[0057] The guide wire rollers include an upper guide wire roller 6 and a lower guide wire roller 7; the upper guide wire roller 6 is arranged above the liquid level of the water washing tank 1; the lower guide wire roller 7 is arranged below the liquid level of the water washing tank 1 and at the lower left, lower right, and upper right positions of the porous roller 3.

[0058] In this specific embodiment, the number of the upper guide wire rollers 6 is 5, which are respectively named the first upper guide wire roller 6-1, the second upper guide wire roller 6-2, the third upper guide wire roller 6-3, the fourth upper guide wire roller 6-4, and the fifth upper guide wire roller 6-5;

[0059] The number of the lower guide wire rollers 7 is 15, which are respectively named the first lower guide wire roller 7-1, the second lower guide wire roller 7-2, the third lower guide wire roller 7-3, the fourth lower guide wire roller 7-4, the fifth lower guide wire roller 7-5, the sixth lower guide wire roller 7-6, the seventh lower guide wire roller 7-7, the eighth lower guide wire roller 7-8, the ninth lower guide wire roller 7-9, the tenth lower guide wire roller 7-10, the eleventh lower guide wire roller 7-11, the twelfth lower guide wire roller 7-12, the thirteenth lower guide wire roller 7-13, the fourteenth lower guide wire roller 7-14, and the fifteenth lower guide wire roller 7-15.

[0060] The water washing tanks 1 are arranged horizontally on the frame 8.

[0061] A temperature detection device is arranged in the water washing tank 1, Figure 1 not shown in the figure.

[0062] The aramid fiber water washing device further includes a pressure roller 9 and a wire guiding roller 12 for the outgoing wire; the pressure roller 9 is arranged above the liquid level of the fifth water washing tank 1-5 and vertically above the wire guiding roller 12 for the outgoing wire.

[0063] The aramid fiber water washing device further includes a washing water collecting tank 10 connected to the first water washing tank 1-1.

[0064] This specific embodiment also provides a method for using the above aramid fiber water washing device, which specifically includes:

[0065] The spinning slurry obtained by a one-step method or a two-step method, with a solid content of 16-30%, is filtered, degassed, accurately metered by a metering pump through transportation, and then enters the coagulation drawing bath through a spinning device. The temperature of the coagulation drawing bath is 5-60°C, and the concentration is 5-60%. Double diffusion occurs here. By adjusting and controlling the concentration and temperature, the double diffusion speed is controlled to prevent the fiber from having a skin-core layer structure. After this process, the fiber filament bundle to be cleaned in this specific embodiment is obtained, in which the mass content of the solvent is 5%-50%.

[0066] After the fiber tow to be cleaned is drawn, it successively passes through the first upper godet roll 6-1, the first lower godet roll 7-1, the second lower godet roll 7-2, the third lower godet roll 7-3 and the first perforated roll 3-1, and is washed in the first water washing tank 1-1 to remove the solvent therein. After this process, the mass content of the solvent in the fiber tow is between 20% and 30%.

[0067] The fiber tow successively passes through the second upper godet roll 6-2, the fourth lower godet roll 7-4, the fifth lower godet roll 7-5, the sixth lower godet roll 7-6 and the second perforated roll 3-2, and is washed in the second water washing tank 1-2 to remove the solvent therein. After this process, the mass content of the solvent in the fiber tow is between 10% and 20%.

[0068] The fiber tow successively passes through the third upper godet roll 6-3, the seventh lower godet roll 7-7, the eighth lower godet roll 7-8, the ninth lower godet roll 7-9 and the third perforated roll 3-3, and is washed in the third water washing tank 1-3 to remove the solvent therein. After this process, the mass content of the solvent in the fiber tow is between 5% and 10%.

[0069] The fiber tow successively passes through the fourth upper godet roll 6-4, the tenth lower godet roll 7-10, the eleventh lower godet roll 7-11, the twelfth lower godet roll 7-12 and the fourth perforated roll 3-4, and is washed in the fourth water washing tank 1-4 to remove the solvent therein. After this process, the mass content of the solvent in the fiber tow is between 0% and 5%.

[0070] The fiber tow successively passes through the fifth upper godet roll 6-5, the thirteenth lower godet roll 7-13, the fourteenth lower godet roll 7-14, the fifteenth lower godet roll 7-15 and the fifth perforated roll 3-5, and is washed in the fifth water washing tank 1-5 to remove the solvent therein. After this process, the solvent in the fiber tow is thoroughly washed, and after being squeezed to remove water by the press roll 9 and the wire guiding roll 12 for wire outlet, it is conveyed to the next process for post-treatment.

[0071] The washing water is pure water with a temperature of 20-60°C; the washing water is recycled by flowing countercurrently from the fifth water washing tank 1-5 to the first water washing tank 1-1, and the flow rate is 1-2 m 3 / h; the washing water is discharged from the first water washing tank 1-1, enters the washing water collection tank 10, and is conveyed to other processes such as the coagulation and drawing bath process through the drainage pipeline and the washing water transfer pump.

[0072] The applicant declares that the detailed structural features of the present utility model are illustrated by the above embodiments, but the present utility model is not limited to the above detailed structural features, that is, it does not mean that the present utility model must rely on the above detailed structural features to be implemented. Those skilled in the art should understand that any improvement to the present utility model, the equivalent replacement of the components selected for the present utility model, the addition of auxiliary components, the selection of specific methods, etc. all fall within the protection scope and the disclosure scope of the present utility model.

[0073] The preferred embodiments of the present utility model have been described in detail above. However, the present utility model is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present utility model, various simple modifications can be made to the technical solution of the present utility model, and these simple modifications all belong to the protection scope of the present utility model.

Claims

1. An aramid fiber washing device, characterized in that, The aramid fiber washing device includes a washing tank, a petal roller, a porous roller and a wire guiding roller; The petal roller includes a roller central shaft and petal structures arranged on the roller central shaft; the porous roller includes an integrated circular drum structure, and a number of uniformly distributed round holes are arranged on the circular drum body; the petal roller is arranged inside the porous roller; the roller central shaft and the inner bushing of the porous roller are supported and connected to each other; both the petal roller and the porous roller are immersed below the liquid level of the washing tank.

2. The aramid fiber washing device according to claim 1, characterized in that, The wire guiding roller includes an upper wire guiding roller and a lower wire guiding roller.

3. The aramid fiber washing device according to claim 2, characterized in that, The upper wire guiding roller is arranged above the liquid level of the washing tank; the lower wire guiding roller is arranged below the liquid level of the washing tank.

4. The aramid fiber washing device according to claim 1, wherein The number of the washing tanks is at least two.

5. The aramid fiber washing device according to claim 1, characterized in that, The washing tanks are arranged horizontally on the frame or arranged in a stepped manner on the frame.

6. The aramid fiber washing device according to claim 4, characterized in that, When the washing tanks are arranged in a stepped manner on the frame, adjacent washing tanks are connected by an overflow plate.

7. The aramid fiber washing device according to claim 1, wherein, A temperature detection device is arranged inside the washing tank.

8. The aramid fiber washing device according to claim 1, characterized in that, The aramid fiber washing device further includes a pressing roller and a wire guiding roller for outgoing wire.

9. The aramid fiber washing device according to claim 8, characterized in that, The pressing roller is arranged above the liquid level of the last washing tank and is vertically arranged on the wire guiding roller for outgoing wire.

10. The aramid fiber washing device according to claim 1, characterized in that, The aramid fiber washing device further includes a washing water collection tank connected to the first washing tank.

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