PAN precursor washing device

Abstract

The utility model discloses a PAN (polyacrylonitrile) precursor washing device, which relates to the technical field of carbon fiber washing, and is characterized in that a pre-washing tank, a cleaning tank and a final washing tank are sequentially arranged in a washing machine main body, cage roller groups for driving PAN precursors to run are arranged in the pre-washing tank, the cleaning tank and the final washing tank, and the cage roller groups can be adjusted in a sliding manner. A plurality of washing tanks are arranged to carry out multi-section washing on the PAN tows, meanwhile, the cage roller sets drive the PAN tows to move in the direction opposite to the water flow direction, then the replacement speed between cleaning liquid and the PAN tows can be increased, the PAN tow cleaning efficiency is improved, meanwhile, during cleaning, the cage roller sets slide, and therefore the PAN tows can be cleaned more thoroughly. The PAN tows can be driven to relax one by one in the operation process, the replacement frequency of the PAN tows in the cleaning liquid is further increased, the washing effect can be effectively improved in cooperation with the gushing device and the ultrasonic cleaning generation device, and the residual amount of DMSO in the PAN tows is reduced to the maximum extent.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to carbon fiber washing technical field, more specifically, it relates to a PAN precursor washing device. BACKGROUND

[0002] Carbon fiber is a kind of fiber material with carbon content of more than 90%, according to the raw material of production, carbon fiber is mainly divided into polyacrylonitrile (PAN) base carbon fiber, pitch base carbon fiber, viscose base carbon fiber etc., PAN base carbon fiber is high-performance fiber material prepared after taking PAN precursor as raw material, pre-oxidation, carbonization and surface treatment, is one of high-performance fiber materials that develop fastest and apply most widely at present, carbon fiber has inherent characteristics of carbon material, also has softness of fiber material, carbon fiber can be compounded with resin, metal, ceramic, carbon, wood etc., and various excellent performance composite materials are prepared, these composite materials are widely used in aviation, aerospace, sports leisure and industry etc.

[0003] DMSO will be used in the process of PAN preparation, and a large amount of residual DMSO in PAN precursor will affect the performance of carbon fiber, because the residual DMSO solvent will escape from the fiber in carbonization, and produce hole, so that the mechanical property of carbon fiber is reduced, and the processing property of carbon fiber is also poor, therefore, it is necessary to reduce the content of residual DMSO in PAN precursor as far as possible, the existing PAN precursor washing device has insufficient washing strength and single washing method, and the content of DMSO in PAN precursor cannot be reduced well.

[0004] Therefore, a new scheme needs to be proposed to solve this problem. UTILITY MODEL CONTENT

[0005] The purpose of the embodiment of the utility model is to provide a PAN precursor washing device to solve the above problems.

[0006] The above technical purpose of the embodiment of the utility model is realized by the following technical scheme: a PAN precursor washing device, a pre-washing tank, a cleaning tank and a final washing tank are sequentially arranged in the washing machine main body, cage roller groups for driving PAN precursor to run are arranged in the pre-washing tank, the cleaning tank and the final washing tank, the adjacent cage roller groups are connected by PAN precursor, the cage roller groups can be slidably adjusted, water pumps are arranged at the right ends of the pre-washing tank, the cleaning tank and the final washing tank, the pre-washing tank and the cleaning tank are connected by a first pipeline, the cleaning tank and the final washing tank are connected by a second pipeline, a water inlet is arranged on one side of the final washing tank, and a water outlet is arranged on one side of the pre-washing tank.

[0007] The utility model further sets up: the cage roller group includes the fixed cage roller in upper end and the dynamic cage roller in lower end, be provided with with the horizontal long groove of dynamic cage roller sliding cooperation on water washing machine main part, two fixed cage roller between be provided with drive member for driving two dynamic cage rollers opposite sliding, drive member and water washing machine main part sliding cooperation, the side of water washing machine main part is provided with drive mechanism for driving drive member sliding.

[0008] The utility model further sets up: drive member includes support seat and the connecting rod of lower end hinged with support seat, the end away from support seat of connecting rod is hinged with dynamic cage roller.

[0009] The utility model further sets up: support seat is fixedly connected with connecting block, is provided with with the vertical slot of connecting block sliding cooperation on water washing machine main part, drive mechanism includes the drive motor of setting on water washing machine main part, the output of drive motor is fixedly connected with screw rod, and one end of screw rod and connecting block stretches into water washing machine main part and is connected in screw thread.

[0010] The utility model further sets up: the bottom of prewash tank, cleaning tank and final washing tank all is provided with ultrasonic generator and spouting device.

[0011] The utility model further sets up: second pipeline is located above first pipeline.

[0012] Summarized above, the utility model has following beneficial effect:

[0013] Through setting up multiple water washing tank to PAN tow multiple section water washing, and the direction of the cage roller group drive PAN tow operation and the direction of water flow are opposite, can increase the replacement speed between cleaning fluid and PAN tow, strengthen the cleaning efficiency of PAN tow, simultaneously, through the sliding of cage roller group in cleaning, can drive PAN tow in the process of operation and one Zhang Yiqie, further increase the replacement frequency of PAN tow in cleaning fluid, cooperate spouting device and ultrasonic cleaning generator, can effectively improve the washing effect, the maximum degree reduces the residual amount of DMSO in PAN tow. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the structure schematic drawing of a PAN raw silk water washing device of the utility model;

[0015] Figure 2 It is the sectional view of drive member in the utility model.

[0016] Reference numerals in the attached drawings: 1. Main body of the washing machine; 2. Pre-wash tank; 3. Washing tank; 4. Final wash tank; 5. Water pump; 6. First pipe; 7. Second pipe; 8. Water inlet; 9. Water outlet; 10. Fixed cage roller; 11. Moving cage roller; 12. Horizontal long trough; 13. Support base; 14. Connecting rod; 15. Connecting block; 16. Vertical trough; 17. Drive motor; 18. Lead screw; 19. Ultrasonic generator; 20. Jetting device. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] In one possible embodiment, please refer to Figure 1 As shown, a PAN raw yarn washing device includes a washing machine body 1. A pre-washing tank 2, a rinsing tank 3, and a final washing tank 4 are sequentially arranged inside the washing machine body 1. Each of the pre-washing tank 2, rinsing tank 3, and final washing tank 4 is equipped with a set of cage rollers for driving the PAN raw yarn. The cage rollers drive the PAN raw yarn to pass through the pre-washing tank 2, rinsing tank 3, and final washing tank 4 sequentially for washing. The pre-washing tank 2 and rinsing tank 3 are connected by a first pipe 6, and the rinsing tank 3 and final washing tank 4 are connected by a second pipe 7, with the second pipe 7 located above the first pipe 6. A water inlet 8 is provided on one side of the final washing tank 4, and a water outlet 9 is provided on one side of the pre-washing tank 2. Simultaneously, the pre-washing tank 2 and rinsing tank 3... A water pump 5 is installed at the right end of both the final washing tank 4 and the final washing tank 4. During cleaning, demineralized water is added into the final washing tank 4 through the inlet 8. Under the action of the water pump 5, the water flows to the left and then flows into the washing tank 3 and the pre-washing tank 2 in sequence through the second pipe 7 and the first pipe 6. Finally, the water containing a large amount of DMSO impurities is discharged from the outlet 9 of the pre-washing tank 2. By washing the PAN filaments in multiple stages, the cleaning efficiency of the PAN filaments can be ensured. At the same time, the PAN filaments move to the right under the drive of the cage roller group, so that the running direction of the PAN filaments is opposite to the flow direction of the water, thereby enhancing the replacement efficiency of the PAN filaments and the cleaning solution and effectively reducing the residual DMSO content in the PAN raw filaments.

[0019] For further details, please refer to Figure 1As shown, the cage roller group can be adjusted slidingly, and in the process of driving the PAN tow to run, the sliding adjustment of the cage roller group can drive the running PAN tow to be in a state of tension and relaxation. When in the state of tension, the water in the PAN tow is squeezed out, and when in the state of relaxation, it is beneficial for the water to flow into the PAN tow, increasing the contact area of the PAN tow and the water. Through the continuous alternation of the tension and relaxation states, the replacement frequency of the water and the DMSO solvent in the PAN tow is accelerated, the DMSO solvent in the PAN tow is brought out, and the residual amount of DMSO in the PAN precursor is further reduced.

[0020] Further, please refer to Figure 1 As shown, the cage roller group includes a fixed cage roller 10 at the upper end and a movable cage roller 11 at the lower end. The water washing machine body 1 is provided with a horizontal long groove 12 that is in sliding cooperation with the movable cage roller 11. A driving member for driving the two movable cage rollers 11 to slide towards each other is arranged between the two fixed cage rollers 10. The driving member is in sliding cooperation with the water washing machine body 1. A driving mechanism for driving the driving member to slide is arranged on one side of the water washing machine body 1. When the cage roller group is working, the driving member is driven to slide by the driving mechanism, and the sliding of the driving member can drive the two movable cage rollers 11 to slide left and right, thereby achieving the purpose of tension and relaxation of the PAN tow. When the distance between the two movable cage rollers 11 is the longest, the PAN tow is in a state of tension. When the distance between the two movable cage rollers 11 is the shortest, the PAN tow is in a state of relaxation.

[0021] Further, please refer to Figure 1 and Figure 2 As shown, the driving member includes a support seat 13 and a connecting rod 14 hinged to the lower end of the support seat 13. The end of the connecting rod 14 away from the support seat 13 is hinged to the movable cage roller 11. Thus, when the driving member slides up and down, it can drive the movable cage roller 11 to slide along the horizontal long groove 12. The support seat 13 is fixedly connected with a connecting block 15. The water washing machine body 1 is provided with a vertical groove 16 that is in sliding cooperation with the connecting block 15. The driving mechanism includes a driving motor 17 arranged on the water washing machine body 1. The output end of the driving motor 17 is fixedly connected with a lead screw 18. The end of the lead screw 18 extending into the water washing machine body 1 is threadedly connected with the connecting block 15. In working, the rotation of the lead screw 18 is driven by the output of the driving motor 17, thereby driving the connecting block 15 threadedly connected with the lead screw 18 to slide up and down along the radial direction of the lead screw 18, and further driving the support seat 13 to slide up and down, and driving the movable cage roller 11 to slide left and right.

[0022] Further, please refer to Figure 1As shown, the bottom of the pre-washing tank 2, the washing tank 3 and the final washing tank 4 is provided with an ultrasonic generator 19, a spraying device 20 and a temperature control plate, through the washing of the ultrasonic generator 19 and the spraying device 20, the washing effect can be fully improved, so as to reduce the DMSO residual amount in the PAN tow to the greatest extent, through the regulation of the temperature control plate, the temperature of the pre-washing tank, the washing tank and the final washing tank is adjusted from low to high, forming a temperature gradient, so that the water temperature of the PAN tow gradually increases in the process of running and cleaning, further improving the cleaning effect of the washing device.

[0023] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0024] The above disclosed preferred embodiments of the present application are only used to help explain the present application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that the skilled in the art can well understand and utilize the present application. The present application is limited by the claims and their entire scope and equivalents.

Claims

1. A PAN precursor washing device comprising a washing machine body (1), characterized in that: The water washing machine body (1) is sequentially provided with a pre-washing tank (2), a cleaning tank (3) and a final washing tank (4), the pre-washing tank (2), the cleaning tank (3) and the final washing tank (4) are all provided with a slidable cage roller group for driving the PAN raw silk to run, the right ends of the pre-washing tank (2), the cleaning tank (3) and the final washing tank (4) are all provided with a water pump (5), the pre-washing tank (2) and the cleaning tank (3) are connected through a first pipeline (6), the cleaning tank (3) and the final washing tank (4) are connected through a second pipeline (7), one side of the final washing tank (4) is provided with a water inlet (8), and one side of the pre-washing tank (2) is provided with a water outlet (9).

2. A PAN precursor washing device according to claim 1, characterized in that: The cage roller group comprises a fixed cage roller (10) at the upper end and a movable cage roller (11) at the lower end, the water washing machine body (1) is provided with a horizontal long groove (12) in sliding fit with the movable cage roller (11), a driving member for driving the two movable cage rollers (11) to slide towards each other is arranged between the two fixed cage rollers (10), the driving member is in sliding fit with the water washing machine body (1), and one side of the water washing machine body (1) is provided with a driving mechanism for driving the driving member to slide.

3. A PAN precursor washing device according to claim 2, characterized in that: The driving member comprises a supporting seat (13) and a connecting rod (14) hinged to the lower end of the supporting seat (13), and one end of the connecting rod (14) away from the supporting seat (13) is hinged to the movable cage roller (11).

4. A PAN precursor washing device according to claim 3, characterized in that: The supporting seat (13) is fixedly connected with a connecting block (15), the water washing machine body (1) is provided with a vertical groove (16) in sliding fit with the connecting block (15), the driving mechanism comprises a driving motor (17) arranged on the water washing machine body (1), the output end of the driving motor (17) is fixedly connected with a lead screw (18), and one end of the lead screw (18) extending into the water washing machine body (1) is in threaded connection with the connecting block (15).

5. The PAN precursor washing device according to claim 1, characterized in that: The bottom of the pre-washing tank (2), the cleaning tank (3) and the final washing tank (4) is provided with an ultrasonic generator (19), a spraying device (20) and a temperature control plate.

6. A PAN precursor washing device according to claim 1, characterized in that: The second pipeline (7) is located above the first pipeline (6).

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