Spinning solution recovery device

Abstract

The utility model discloses a spinning solution recovery device which comprises a groove body and a material frame, reaction liquid is contained in the groove body, the material frame is connected to the upper end of the groove body in a sliding mode, a connecting column used for installing a sample bottle is arranged on the material frame, a material funnel matched with the sample bottle is installed at the lower end of the connecting column, and the material funnel is connected with the groove body in a sliding mode. A reciprocating driving mechanism for forcing the material frame to do reciprocating motion on the groove body is installed on the groove body, the reciprocating driving mechanism comprises a protective shell, the protective shell is fixedly connected to one side of the groove body, and a pair of chain wheels are rotationally connected to the end face, away from the groove body, of the protective shell. Compared with the prior art, the spinning solution recycling device has the advantages that spinning solution solidification sufficiency is achieved to a great extent, spinning solution blocks which are completely solidified can be directly recycled in the next step, dimethyl sulfoxide in the spinning solution is separated out in the solidification process, a dimethyl sulfoxide water solution is formed, and the spinning solution is recycled. The recovery of dimethyl sulfoxide is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbon fiber production, and particularly relates to a spinning solution recovery device. Background Art

[0002] Carbon fiber materials have been widely used in many fields such as aerospace, architecture, sports, automotive, and medical. Especially polyacrylonitrile-based fibers, polyacrylonitrile carbon fibers not only have the inherent properties of carbon materials but also have the processability of textile fibers, with characteristics such as high strength, high modulus, low density, high temperature resistance, anti-friction, good electrical conductivity, good thermal conductivity, and chemical corrosion resistance, and have a relatively broad application prospect in the field of carbon fibers.

[0003] During the production process, samples need to be taken according to control requirements as test samples for regular testing. After the testing is completed, the spinning solution sample bottles are usually cleaned with water. However, dimethyl sulfoxide is the main solvent used in the production process of polyacrylonitrile carbon fibers, and the cleaning effect of dimethyl sulfoxide with water is not ideal. If cleaned manually, dimethyl sulfoxide sticking to the skin will also cause harm to the human skin. Cleaning with water is also likely to cause incomplete solidification inside the spinning solution, causing difficulties in the post-treatment of waste materials and bringing great pollution to the environment.

[0004] The information disclosed in this background art section is only intended to enhance the overall understanding of the utility model and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a spinning solution recovery device, which can solve the technical problems proposed in the above background art.

[0006] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0007] A spinning solution recovery device includes a tank body and a material rack. The tank body is filled with a reaction solution. The material rack is slidably connected to the upper end of the tank body. The material rack is provided with connecting columns for installing sample bottles, and a material funnel matching the sample bottle is installed at the lower end of the connecting column.

[0008] In one or more embodiments of the utility model, a reciprocating drive mechanism for forcing the material rack to reciprocate on the tank body is installed on the tank body.

[0009] In one or more embodiments of the present utility model, the reciprocating driving mechanism includes a protective housing fixedly connected to one side of the trough body. One end surface of the protective housing away from the trough body is rotatably connected with a pair of sprockets, and the pair of sprockets are respectively installed at both ends of the protective housing. A chain is installed on the pair of protective housings, and a motor matching one of the sprockets is installed on the trough body.

[0010] In one or more embodiments of the present utility model, a first connection block is slidably connected inside the protective housing. The first connection block is located at one end surface away from the side of the protective housing where the chain is installed. A third connection block is fixedly connected to the first connection block. A second chute matching the third connection block is provided on the protective housing. One end of the third connection block penetrates through the second chute. A second connection block is installed between the chain and the first connection block. A first connecting member is installed on the second connection block. A second connecting member is installed at the end of the second connection block away from the first connecting member. A waist-shaped hole matching the second connecting member is provided on the first connection block.

[0011] In one or more embodiments of the present utility model, the reciprocating driving mechanism includes a reciprocating motor and a lead screw matching the material rack, and one end of the material rack is in threaded connection with the lead screw.

[0012] In one or more embodiments of the present utility model, a water draining trough matching the material rack is installed on the trough body. Buckles are respectively installed at both ends of the water draining trough. A flexible connecting belt is installed between the buckle and the water draining trough. A handle is fixedly connected to the water draining trough.

[0013] In one or more embodiments of the present utility model, a U-shaped card slot matching the filter layer is fixedly connected to the inner wall of the trough body, and the filter layer is detachably installed in the U-shaped card slot.

[0014] In one or more embodiments of the present utility model, a pair of mounting brackets are fixedly connected to the upper end of the trough body. The pair of mounting brackets are respectively installed on both sides of the trough body. The material rack is located between the pair of mounting brackets. First chutes are provided on the mounting brackets, and connecting columns matching the first chutes are fixedly connected to the material rack.

[0015] In one or more embodiments of the present utility model, the caliber of the discharge port of the sample bottle is larger than the aperture of the discharge port of the material funnel.

[0016] In one or more embodiments of the present utility model, a first pipeline is installed on the trough body, and a first valve is installed on the first pipeline. A second pipeline is installed on the trough body, and a second valve is installed on the second pipeline.

[0017] Compared with the prior art, a spinning solution recovery device of the present utility model has the following advantages:

[0018] 1) To a large extent, the sufficiency of coagulation of the spinning solution is solved. The fully coagulated spinning solution block can be directly recycled in the next step. The dimethyl sulfoxide in the spinning solution is precipitated during the coagulation process to form a dimethyl sulfoxide aqueous solution, which is conducive to the recovery of dimethyl sulfoxide;

[0019] 2) Reduce artificial contact with dimethyl sulfoxide and avoid the harm of dimethyl sulfoxide to the human body as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The structure of a spinning solution recovery device in one embodiment of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The structure of a spinning solution recovery device in one embodiment of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 3 It is a cross-sectional view of a spinning solution recovery device in one embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the mounting frame and the material rack in one embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of a drain tank in one embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the reciprocating drive mechanism in one embodiment of the utility model;

[0027] Figure 7 A cross-sectional view of a reciprocating drive mechanism in one embodiment of the utility model Figure 1 ;

[0028] Figure 8 A cross-sectional view of a reciprocating drive mechanism in one embodiment of the utility model Figure 2 ;

[0029] Figure 9 It is a schematic diagram of the partial structure of the reciprocating drive mechanism in one embodiment of the utility model.

[0030] Description of main reference numerals:

[0031] 1. Tank body; 101. U-shaped card slot; 2. Mounting frame; 201. First chute; 3. Material rack; 301. Connecting column; 302. Placing hole; 4. Material funnel; 5. Drainage tank; 501. Buckle; 502. Soft connecting belt; 503. Handle; 6. Filter layer; 7. First pipeline; 8. First valve; 9. Second pipeline; 10. Second valve; 11. Reciprocating drive mechanism; 12. Bracket; 13. Motor; 14. Protective housing; 1401. Second chute; 1402. Through hole; 15. Sprocket; 16. Chain; 17. First connecting block; 1701. Slotted hole; 18. Second connecting block; 19. First connecting piece; 20. Third connecting block; 2001. Mounting hole. Detailed implementation manners

[0032] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0033] As Figures 1 to 9 shown, a spinning solution recovery device in an embodiment of the present utility model includes a tank body 1, a reaction solution is contained in the tank body 1, a pair of mounting frames 2 are fixedly connected to the upper end of the tank body 1, a material rack 3 is installed between the pair of mounting frames 2, a first chute 201 is provided on the mounting frame 2, and a connecting column 301 matching the first chute 201 is fixedly connected to the material rack 3. The material rack 3 slides in the first chute 201 through the connecting column 301, that is, the material rack 3 is slidably connected to the upper end of the tank body 1 through the mounting frame 2.

[0034] As Figure 4 shown, placing holes 302 are provided at the upper end of the material rack 3, sample bottles can be inserted into the placing holes 302, and a material funnel 4 is fixedly connected to the lower end of the placing holes 302. Since the placing holes 302 are located above the material funnel 4, the spinning solution in the sample bottles will sequentially pass through the placing holes 302 and the material funnel 4, and finally leak out from the discharge port of the material funnel 4. Since the discharge port of the material funnel 4 is relatively thin, the flowing spinning solution can form a thin stream and flow into the reaction solution. The spinning solution can solidify in the reaction solution, and dimethyl sulfoxide dissolves in the reaction solution.

[0035] As the solidified materials in the tank body 1 increase, the concentration of dimethyl sulfoxide in the reaction solution also gradually increases, resulting in a gradual increase in the liquid level in the tank body 1. To prevent the mixed liquid in the tank body 1 from overflowing, asFigures 1 to 3 As shown, a first pipeline 7 is fixedly connected to one side of the tank body 1, and a first valve 8 is installed on the first pipeline 7. By opening the first valve 8, a part of the mixed liquid in the tank body 1 is discharged. In order to achieve solid-liquid separation, a filter layer 6 is installed on the tank body 1. The filter layer 6 divides the space in the tank body 1 into a first cavity and a second cavity. The material rack 3 can completely cover the upper end surface of the first cavity, and the first pipeline 7 is communicated with the second cavity. During the process of discharging the solution, the solidified matter will remain in the first cavity.

[0036] Specifically, as Figure 3 shown, a U-shaped clamping groove 101 is fixedly connected to the inner wall of the tank body 1, and the filter layer 6 can be clamped in the U-shaped clamping groove 101 to realize the detachable installation of the filter layer 6, which is convenient for replacing the filter layer 6.

[0037] As Figures 1 to 3 shown, a second pipeline 9 is also installed at the upper end of the tank body 1, and a second valve 10 is arranged on the second pipeline 9. When a certain amount of the mixed liquid is discharged through the first pipeline 7, the total amount of the reaction liquid in the tank body 1 will also decrease. The reaction liquid is added into the tank body 1 through the second pipeline 9 to realize the replenishment of the reaction liquid.

[0038] Preferably, a liquid level monitoring device (not shown in the figure) can be installed in the second cavity. The liquid level is monitored through the liquid level monitoring device, and the first valve 8 and the second valve 10 are linked. When the liquid level is too high, the liquid level monitoring device opens the first valve 8. After discharging a certain amount of liquid, the first valve 8 is closed, and then the liquid level monitoring device opens the second valve 10, so that the second pipeline 9 can replenish a certain amount of reaction liquid into the tank body 1.

[0039] As Figures 1 to 9 shown, in order to prevent the spinning liquid stream flowing out of the discharge port of the material funnel 4 from accumulating in the tank body 1, the material rack 3 reciprocally slides on the mounting rack 2. Generally, the material rack 3 is driven by a reciprocating drive mechanism 11 to reciprocally slide on the mounting rack 2.

[0040] The reciprocating drive mechanism 11 can specifically be a combination of a lead screw and a reciprocating motor. The lead screw is threadedly connected to one end of the material rack 3. By driving the lead screw to move through the reciprocating motor, the lead screw drives the material rack 3 to slide on the mounting rack 2, and the reciprocating motor changes the output direction to realize the reciprocating movement of the material rack 3 on the mounting rack 2.

[0041] To further reduce the use cost of the reciprocating drive mechanism 11, as Figures 1 to 9As shown in the figure, the reciprocating drive mechanism 11 includes a protective housing 14, which is fixedly connected to a side wall of the trough 1. Two sprockets 15 are rotatably connected to an inner side wall of the protective housing 14 away from the trough 1. The two sprockets 15 are respectively installed at both ends of the protective housing 14, and a chain 16 is installed on the sprockets 15. A bracket 12 matching one of the sprockets 15 is installed on the trough 1, and a motor 13 matching the sprocket 15 is fixedly connected to the bracket 12. The purchase cost of the motor 13 is lower than that of the reciprocating motor, and the usage cost and maintenance cost are also relatively lower. The motor 13 drives one of the sprockets 15 to rotate, drives the chain 16 to rotate, and the chain 16 can drive the other sprocket 15 to rotate.

[0042] As Figures 1 to 9 shown in the figure, the reciprocating drive mechanism 11 further includes a first connecting block 17, which is slidably connected horizontally in the material funnel 4. The horizontal symmetry axis of the first connecting block 17 is on the same straight line as the horizontal symmetry axis of the sprocket 15. A second connecting block 18 is installed between the chain 16 and the first connecting block 17. A first connecting member 19 for fixing to the chain 16 is fixedly connected to the second connecting block 18, and a second connecting member is fixedly connected to the other end. A waist-shaped hole 1701 matching the second connecting member is opened on the first connecting block 17, and the second connecting member can rotate in the waist-shaped hole 1701. A third connecting block 20 is fixedly connected to the upper end of the first connecting block 17. A second chute 1401 matching the third connecting block 20 is opened on the protective housing 14. One end of the third connecting block 20 passes through the second chute 1401. An installation hole 2001 matching the connecting column 301 is opened on the third connecting block 20. The third connecting block 20 is fixed to the material rack 3 through the cooperation of the installation hole 2001 and the connecting column 301.

[0043] Specifically, when the motor 13 starts, it drives the sprocket 15 and the chain 16 to rotate. Since the second connecting block 18 is fixedly connected to the chain 16, it will also be driven to move. The second connecting block 18 drives the first connecting block 17 and the third connecting block 20 to move at the same time. When the second connecting block 18 moves to the arc section of the chain 16, the first connecting block 17 stops moving forward, and under the drive of the chain 16, it rotates through the cooperation of the second connecting member and the waist-shaped hole 1701, and the direction of the second connecting block 18 is reversed. When the second connecting block 18 moves out of the arc section of the chain 16, it drives the first connecting block 17 to move in the reverse direction, and so on. Thus, the reciprocating drive mechanism 11 drives the material rack 3 to reciprocate on the mounting rack 2 to avoid the accumulation of the spinning solution fine stream.

[0044] As Figure 6As shown, when the second connecting block 18 moves out of the arc section of the chain 16, one end of the first connecting block 17 will abut against the protective housing 14, resulting in inoperability. Therefore, a through hole 1402 matching the first connecting block 17 is provided on the protective housing 14.

[0045] Among them, the first connecting member 19 is generally a bolt, and the second connecting member is generally a cylinder.

[0046] As Figures 1 to 5 shown, to facilitate the one-time recovery and treatment of the solidified matter in the trough 1, a water drainage trough 5 is further installed on the trough 1. The water drainage trough 5 is matched with the material rack 3. The width of the water drainage trough 5 is smaller than the width of the trough 1, but it is still within the reciprocating movement range of the material rack 3, and the reciprocating movement range of the material rack 3 does not exceed the width of the trough 1. A plurality of buckles 501 are fixedly connected to the water drainage trough 5, and the buckles 501 can be stuck on the side wall of the trough 1 to realize the fixation of the water drainage trough 5. A flexible connection belt 502 is fixedly connected between the buckle 501 and the water drainage trough 5. The flexible connection belt 502 can specifically be a cloth belt or other flexible connection mechanisms, which can enable the water drainage trough 5 to achieve continuous shaking after being installed on the trough 1. When the water drainage trough 5 shakes, the dimethyl sulfoxide in the solidified matter can be fully mixed with the reaction solution, which is more conducive to the recovery of dimethyl sulfoxide, and at the same time can stir the reaction solution to make the mixture of dimethyl sulfoxide and the reaction solution more uniform.

[0047] As Figure 5 shown, a handle 503 is fixedly connected to the upper end of the water drainage trough 5. Through the handle 503, it is convenient to shake the water drainage trough 5, and through the handle 503, the water drainage trough 5 can also be taken out of the trough 1 to realize the rapid separation of the solidified matter and the solution. After taking out, the water drainage trough 5 can be shaken to shake the remaining mixed liquid in the water drainage trough 5 into the trough 1, reducing the liquid residue of the solidified matter in the water drainage trough 5.

[0048] When the utility model is used, first, the buckle 501 on the water drainage trough 5 needs to be clamped on the side wall of the trough 1 to realize the installation of the water drainage trough 5. Then, the sample bottle is clamped in the connecting column 301, and the spinning solution in the sample bottle flows downward. The spinning solution flows out from the discharge port of the material funnel 4 to form a spinning solution thin stream, which can be solidified in the reaction solution in the trough 1. When the liquid level in the trough 1 reaches a certain height, the first valve 8 can be opened to discharge a part of the mixed solution of the reaction solution and dimethyl sulfoxide, and through the cooperation of the second pipeline 9 and the second valve 10, a corresponding amount of reaction solution is added into the trough 1. The solidified matter is located in the water drainage trough 5, and the water drainage trough 5 can be shaken through the handle 503 to further mix the dimethyl sulfoxide in the solidified matter with the reaction solution, which is conducive to the recovery of dimethyl sulfoxide. The water drainage trough 5 can be detached from the trough 1 to realize the rapid separation of the solidified matter and dimethyl sulfoxide.

[0049] Preferably, a circulation mechanism can also be provided between the first cavity and the second cavity to circulate the mixed liquid in the first cavity and the second cavity, so that the reaction liquid and dimethyl sulfoxide are fully mixed. Due to the presence of the filter layer 6, it is not easy to cause blockage of the circulation mechanism either.

[0050] The utility model largely solves the sufficiency of the solidification of the spinning solution, and the completely solidified spinning solution block can be directly subjected to the next recovery treatment. Moreover, dimethyl sulfoxide in the spinning solution precipitates during the solidification process to form an aqueous sulfoxide solution, and after further distillation and recovery treatment, a sulfoxide solvent is obtained and recycled for acrylonitrile polymerization production, greatly reducing the production cost.

[0051] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0052] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A spinning solution recovery device, characterized in that: include: A tank body, wherein the tank body contains a reaction liquid; A material rack, the material rack being slidably connected to the upper end of the trough body; The material rack is provided with a connecting column for mounting a sample bottle, and a material funnel matching the sample bottle is mounted at the lower end of the connecting column.

2. A spinning solution recovery device according to claim 1, characterized in that: The trough body is provided with a reciprocating driving mechanism for forcing the material rack to reciprocate on the trough body.

3. A spinning solution recovery device according to claim 2, characterized in that: The reciprocating drive mechanism comprises a protective shell, the protective shell is fixedly connected to one side of the trough body, an end face of the protective shell away from the trough body is rotatably connected to a pair of sprockets, the pair of sprockets are respectively mounted at two ends of the protective shell, and a chain is mounted on the pair of protective shells; A motor matched with a sprocket is installed on the tank body.

4. A spinning solution recovery device according to claim 3, characterized in that: A first connecting block is slidably connected in the protective shell, the first connecting block is located at an end face away from the protective shell mounting chain, a third connecting block is fixedly connected to the first connecting block, a second sliding groove matching the third connecting block is provided on the protective shell, and one end of the third connecting block passes through the second sliding groove; A second connecting block is installed between the chain and the first connecting block, a first connecting piece is installed on the second connecting block, a second connecting piece is installed on one end of the second connecting block away from the first connecting piece, and a waist hole matching the second connecting piece is opened on the first connecting block.

5. A spinning solution recovery device according to claim 2, characterized in that: The reciprocating drive mechanism comprises a reciprocating motor and a screw rod matched with the material rack, and one end of the material rack is threadedly connected to the screw rod.

6. A spinning solution recovery device according to claim 1, characterized in that: The tank body is provided with a drain tank matching the material rack; Buckles are respectively installed at both ends of the drain trough, a soft connecting belt is installed between the buckle and the drain trough, and a handle is fixedly connected to the drain trough.

7. A spinning solution recovery device according to claim 1, characterized in that: The inner wall of the slot body is fixedly connected with a U-shaped slot matching the filter layer, and the filter layer is detachably installed in the U-shaped slot.

8. A spinning solution recovery device according to claim 1, characterized in that: A pair of mounting frames are fixedly connected to the upper end of the trough body, the pair of mounting frames are respectively mounted on both sides of the trough body, and the material rack is located between the pair of mounting frames; The mounting frame is provided with a first sliding groove, and the material rack is fixedly connected with a connecting column matching the first sliding groove.

9. A spinning solution recovery device according to claim 1, characterized in that: The diameter of the discharge port of the sample bottle is larger than the aperture of the discharge port of the material funnel.

10. The spinning solution recovery device according to claim 1, characterized in that: A first pipeline is installed on the tank body, and a first valve is installed on the first pipeline; A second pipeline is installed on the tank body, and a second valve is installed on the second pipeline.

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