Spinning thread processing equipment

Abstract

The utility model discloses spinning thread processing equipment, which relates to the technical field of spinning thread processing, and comprises a coagulating basin, an air section, a water inlet pipe, a water outlet pipe and a water outlet pipe, the air inlet pipeline is used for conveying air with set temperature and humidity to the air section; the spinning nozzle is arranged at the upper end part of the coagulating basin; the output end of the circulating pump is connected with the upper end part of the coagulating tank, and the input end of the circulating pump is connected with the lower end part of the coagulating tank and the water injection pipeline. The spinning yarn processing equipment solves the technical problems that the temperature and humidity of the air section are difficult to control, so that a phase separation structure of a hollow fiber membrane yarn primary body is not uniform, and the performance of the hollow fiber membrane yarn is unstable, and the temperature and humidity of the air section are always kept stable by inputting gas with set temperature and humidity into the air section, so that the performance of the hollow fiber membrane yarn is improved. And it is ensured that phase separation of the hollow fiber membrane filament primary body starts in the solidification liquid, it is ensured that the radial humidity and temperature of the hollow fiber membrane filaments are uniform, and the forming quality of the hollow fiber membrane filaments is improved.

Description

Technical Field

[0001] This utility model relates to the field of spinning yarn processing technology, and in particular to a spinning yarn processing equipment. Background Technology

[0002] Membrane treatment of wastewater is a major trend in wastewater treatment today. With increasing demands on the performance of filtration membranes, the requirements for the treatment quality of membrane elements are becoming increasingly stringent. Spinning thread is a general term for the extrusion of melt into fine streams and the solidification of nascent fibers. The entire process from the spinneret orifice to winding is called spinning thread. Before passing through the coagulation tank, the hollow fiber membrane filaments undergo a dry spinning process in an air section. Traditionally, this dry spinning process is adjusted by raising or lowering the liquid level in the coagulation tank.

[0003] However, the aforementioned method of adjusting the air section during dry spinning makes it difficult to control the temperature and humidity of the air section, as these conditions are easily affected by changes in external conditions. When the external humidity and temperature are uneven or unstable, it can lead to uneven phase separation of the initial hollow fiber filaments, resulting in unstable performance of the hollow fiber filaments and even breakage. Therefore, a spinning yarn processing device is proposed to address these problems. Utility Model Content

[0004] The purpose of this invention is to provide a spinning yarn processing equipment that solves the technical problem that the temperature and humidity of the air section are easily affected by changes in external conditions and are difficult to control, which can easily lead to uneven phase separation structure formation of the hollow fiber membrane filament and consequently cause unstable performance of the hollow fiber membrane filament.

[0005] To achieve the above objectives, this utility model provides a spinning yarn processing device, comprising:

[0006] A coagulation tank is filled with a coagulation liquid, and the portion of the coagulation tank above the liquid surface of the coagulation liquid is an air section.

[0007] An air inlet pipe is located at the upper end of the solidification tank. The air inlet pipe is used to supply gas with a set temperature and humidity to the air section in order to regulate the temperature and humidity of the air section.

[0008] A spinneret is located at the upper end of the coagulation tank. The spinneret is used to shape the casting liquid and spray out the hollow fiber membrane filaments.

[0009] A circulating pump, the output end of which is connected to the upper end of the solidification tank, and the input end of which is connected to the lower end of the solidification tank and the water injection pipeline.

[0010] Preferably, an air disperser is provided at one end of the air inlet pipe in the solidification tank. The air disperser is used to reduce the flow velocity of the gas when it is discharged from the air inlet pipe and to disperse the gas.

[0011] Preferably, the air intake pipeline is equipped with a first filter, a pressure regulating valve, a gas constant temperature heater, and a temperature and humidity controller.

[0012] Preferably, a second filter is provided at the input end of the circulating pump, and a heat exchanger is provided at the output end of the circulating pump.

[0013] Preferably, a protective cylinder is provided at the upper end of the solidification tank, the protective cylinder is connected to the interior of the solidification tank, and the protective cylinder is connected to the output end of the circulation pump.

[0014] Preferably, the upper end of the coagulation tank is provided with a water inlet pipe and an overflow pipe.

[0015] Preferably, a discharge pipe is provided at the bottom of the solidification tank.

[0016] Preferably, a heating rod is provided inside the solidification tank.

[0017] Preferably, the inner wall of the coagulation tank is provided with several sets of detection instruments from top to bottom, and each set of detection instruments includes: a DMAC concentration meter and a first thermometer.

[0018] Preferably, a lift is provided at the upper end of the solidification tank, a first guide wheel is slidably connected to the inner sidewall of the solidification tank, the lift is connected to the first guide wheel via a steel wire, and a second guide wheel is also provided at the upper end of the solidification tank.

[0019] Compared with the above-mentioned background technology, the spinning yarn processing equipment provided by this utility model has the following beneficial effects:

[0020] (1) This utility model inputs gas with set temperature and humidity into the air section through the air inlet pipe, independently adjusts the temperature and humidity of the air section, avoids the influence of the external environment on the temperature and humidity of the air section, and can timely discharge the high temperature and high humidity gaseous solvent generated by the vaporization of some condensate from the air section, so that the temperature and humidity of the air section are always stable, preventing the hollow fiber membrane filament from absorbing the high temperature and high humidity gaseous condensate of the air section to form phase separation, ensuring that the phase separation of the hollow fiber membrane filament begins in the condensate, ensuring the uniformity of humidity and temperature in the radial direction of the hollow fiber membrane filament, realizing precise control of the surface structure of the hollow fiber membrane filament, making the surface structure of the hollow fiber membrane filament uniform, and effectively improving the forming quality of the hollow fiber membrane filament.

[0021] (2) This utility model connects to the coagulation tank via a circulating pump, which enables the coagulation liquid in the coagulation tank to be fully and evenly mixed, preventing local uneven concentration or inconsistent temperature of the coagulation liquid in the coagulation tank. This ensures that the concentration and temperature of the coagulation liquid at different height positions during the phase separation process of the hollow fiber membrane filaments remain stable at the concentration and temperature specified in the process, further improving the forming quality of the hollow fiber membrane filaments and guaranteeing the performance of the hollow fiber membrane filaments. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a schematic diagram illustrating the working principle of the spinning yarn processing equipment provided in this embodiment of the utility model;

[0024] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0025] Specifically, 1-coagulation tank; 101-concentration meter; 102-first thermometer; 103-level gauge; 104-protective cylinder; 2-air section; 3-air inlet pipe; 301-air disperser; 302-first filter; 303-gas constant temperature heater; 304-temperature and humidity controller; 305-second manual valve; 306-pressure regulating valve; 4-exhaust pipe; 5-circulation pump; 501-second filter; 6-water injection pipe; 601-first manual valve; 602-first... 7-Control valve; 8-Water pumping pipeline; 9-Third manual valve; 10-Overflow pipeline; 11-Fourth control valve; 12-Heating rod; 13-Elevator; 14-Second guide roller; 15-Discharge pipeline; 16-Fill pipe; 17-Spinneret head. Detailed Implementation

[0026] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1 and Figure 2 As shown, to achieve the above objectives, this utility model provides a spinning yarn processing device, including: a coagulation tank 1, an air inlet pipe 3, a spinneret 17, and a circulation pump 5. Preferably, the coagulation tank 1 is trapezoidal in shape, and the length of the upper end of the coagulation tank 1 is greater than the length of the lower end of the coagulation tank 1. While maintaining the coagulation liquid depth unchanged, the amount of coagulation liquid used can be further reduced, thereby saving production costs.

[0029] The solidification tank 1 is filled with solidifying liquid. The portion of the solidification tank 1 above the surface of the solidifying liquid is the air section 2. An air inlet pipe 3 and an exhaust pipe 4 are installed at the upper end of the solidification tank 1, both connected to the air section 2. The air inlet pipe 3 continuously supplies gas with a set temperature and humidity to the air section 2, allowing independent adjustment of its temperature and humidity. In this case, the external environment of the solidification tank 1 will not affect the temperature and humidity of the air section 2. Furthermore, the high-temperature, high-humidity gaseous solvent generated by the vaporization of some of the solidifying liquid can be promptly discharged from the air section 2, thus maintaining a stable temperature and humidity in the air section 2. This prevents the hollow fiber membrane filaments from absorbing the high-temperature, high-humidity gaseous solidifying liquid in the air section 2, thus preventing phase separation. This ensures that phase separation of the hollow fiber membrane filaments begins within the solidifying liquid, thereby guaranteeing uniform humidity and temperature in the radial direction of the hollow fiber membrane filaments. This achieves precise control over the surface structure of the hollow fiber membrane filaments, resulting in a uniform surface structure and improved molding quality. It should be noted that the exhaust pipe 4 can discharge the gas in the air section 2, ensuring stable air pressure in the air section 2 and further preventing the hollow fiber membrane filaments from being affected in the air section 2. Preferably, the gas is either compressed air or nitrogen, preferably compressed air.

[0030] A spinneret 17 is provided at the upper end of the coagulation tank 1. The discharge end of the spinneret 17 is located at the air section 2. The casting liquid enters the spinneret 17 after passing through the guide pipe 16. After passing through its special internal structure, it forms a hollow fiber membrane filament and is ejected through the spinneret cover. Then, relying on gravity and subsequent traction, it passes through the air section 2 and finally falls into the coagulation liquid, where phase separation takes place.

[0031] A circulation pump 5 is also installed on one side of the coagulation tank 1. The output end of the circulation pump 5 is connected to the upper end of the coagulation tank 1, and the input end of the circulation pump 5 is connected to the lower end of the coagulation tank 1 and the water injection pipe 6. The water injection pipe 6 is mainly used to add pure water to the coagulation tank 1 and add a certain amount of solvent through the top opening of the coagulation tank 1 according to a set ratio to form a coagulated liquid. The connection between the circulation pump 5 and the coagulation tank 1 ensures that the coagulated liquid in the coagulation tank 1 is fully mixed and uniform, preventing local uneven concentration or inconsistent temperature of the coagulated liquid in the coagulation tank 1. This ensures that the concentration and temperature of the coagulated liquid at different height positions of the hollow fiber membrane filaments remain stable at the concentration and temperature specified in the process during the phase separation process, further improving the forming quality of the hollow fiber membrane filaments and guaranteeing their performance.

[0032] It should be noted that a first manual valve 601 and a first control valve 602 are installed in the water injection pipeline 6. The first manual valve 601 and the first control valve 602 are connected in series and are used to control the opening and closing of the water injection pipeline 6. The first control valve 602 is the commonly used control valve and can be controlled by sending a signal through the control module. The first manual valve 601 is an auxiliary control valve and is normally open. When the first control valve 602 fails, it can be controlled by the first manual valve 601. Moreover, after closing the first manual valve 601, it is convenient to replace and repair the first control valve 602.

[0033] In use, pure water is added to the coagulation tank 1 through the water injection pipe 6, and a certain amount of solvent is added through the top opening of the coagulation tank 1 according to the set ratio to form a coagulation liquid. The coagulation liquid at the lower end of the coagulation tank 1 is extracted by the circulation pump 5 and transported to the upper end of the coagulation tank 1 through the circulation pump 5, so that the coagulation liquid in the coagulation tank 1 is fully mixed and uniform. At the same time, the air inlet pipe 3 can continuously deliver gas with a set temperature and humidity to the air section 2 to keep the temperature and humidity of the air section 2 stable. After the casting liquid is discharged from the spinneret 17, it forms a hollow fiber membrane filament. Relying on gravity and subsequent traction force, it passes through the air section 2 and finally falls into the coagulation liquid. After the hollow fiber membrane filament enters the coagulation liquid, phase separation occurs to form a hollow fiber membrane filament with a microporous structure.

[0034] In one embodiment of this utility model, an air disperser 301 is provided at one end of the air inlet pipe 3 located in the solidification tank 1. On the one hand, the air disperser 301 is equivalent to a resistance-generating body, which reduces the flow speed of the gas when it is discharged from the air inlet pipe 3. On the other hand, it is equivalent to dispersing the gas, preventing the gas from blowing and disturbing the hollow fiber membrane filament, thereby further improving the forming quality of the hollow fiber membrane filament.

[0035] In addition, the intake pipe 3 is equipped with a second manual valve 305, a first filter 302, a pressure regulating valve 306, a gas thermostat heater 303, and a temperature and humidity controller 304. These components are arranged sequentially along the gas flow direction in the intake pipe 3. The second manual valve 305 controls the opening and closing of the intake pipe 3. The first filter 302 is made of PP cotton, stainless steel mesh, or non-woven fabric; preferably, it is made of PP cotton. The first filter 302 filters impurities in the gas, preventing them from adhering to the surface of the hollow fiber membrane filaments after entering the air section 2, thus affecting the quality of the hollow fiber membrane formation. The pressure regulating valve 306 precisely controls the gas flow rate per unit time, and in conjunction with the gas thermostat heater 303 and the temperature and humidity controller 304, precisely adjusts the gas temperature and humidity, thereby regulating the temperature and humidity environment of the air section 2.

[0036] A second filter 501 is installed at the input end of the circulating pump 5. The second filter 501 can filter impurities in the coagulation tank 1 in a timely manner, thereby purifying the coagulation liquid and minimizing the impact of impurities on the coagulation liquid in the coagulation tank 1. In addition, the input end of the circulating pump 5 is connected to the lower end of the coagulation tank 1 through a water pumping pipe 7. A third manual valve 701 and a second control valve 702 are installed in the water pumping pipe 7. The third manual valve 701 and the second control valve 702 are connected in series and are used to control the opening and closing of the water pumping pipe 7.

[0037] A heat exchanger 801 is installed at the output end of the circulating pump 5. Specifically, the output end of the circulating pump 5 is connected to the upper end of the coagulation tank 1 through a water supply pipe 8. A second thermometer 802 is installed in the water supply pipe 8 to monitor the temperature of the coagulated liquid in the water supply pipe 8 in real time. The heat exchanger 801 is installed in the water supply pipe 8. On the one hand, when pure water is added to the coagulation tank 1 through the water injection pipe 6, the heat exchanger 801 heats the pure water, so that the coagulated liquid after mixing the pure water and solvent reaches the temperature specified by the process in the coagulation tank 1. On the other hand, the heat exchanger 801 can ensure that the coagulated liquid discharged from the coagulation tank 1 and entering the circulation can maintain the same temperature as the coagulated liquid in the coagulation tank 1 before re-entering the coagulation tank 1, thereby preventing local uneven concentration or inconsistent temperature of the coagulated liquid in the coagulation tank 1. Preferably, the heat exchanger 801 is a plate heat exchanger 801, which makes full use of the high heat transfer efficiency of the plate heat exchanger 801.

[0038] In one embodiment of this utility model, a protective cylinder 104 is provided at the upper end of the coagulation tank 1, and the protective cylinder 104 is connected to the output end of the circulation pump 5. The protective cylinder 104 communicates with the interior of the coagulation tank 1. The protective cylinder 104 is cylindrical and is inclinedly arranged inside the coagulation tank 1. An opening is provided at the lower end of the protective cylinder 104. After the coagulation liquid in the water supply pipe 8 enters the coagulation tank 1, it will first enter the interior of the protective cylinder 104 and fall to the inner wall of the protective cylinder 104. After being guided by the protective cylinder 104, it flows into the coagulation tank 1 and mixes with the coagulation liquid in the coagulation tank 1. This prevents the coagulation liquid discharged from the water supply pipe 8 from falling directly into the coagulation tank 1 and causing violent movement of the coagulation liquid in the coagulation tank 1, thus avoiding disturbance of the hollow fiber membrane filaments during the phase separation process and avoiding affecting the performance of the hollow fiber membrane filaments.

[0039] In addition, an inlet pipe 9 and an overflow pipe 10 are provided at the upper end of the coagulation tank 1. The inlet pipe 9 is equipped with a third control valve 901, which controls the opening and closing of the inlet pipe 9. The overflow pipe 10 is equipped with a fourth control valve 1001, which controls the opening and closing of the overflow pipe 10. When the water content in the coagulation liquid in the coagulation tank 1 decreases due to evaporation, the third control valve 901 is opened, and pure water is added to the coagulation tank 1 through the inlet pipe 9 to dilute the coagulation liquid. When the solvent content in the coagulation liquid decreases due to evaporation, and since the solvent accounts for a small percentage of the coagulation liquid by mass, the solvent can be directly poured into the coagulation liquid through the upper opening of the coagulation tank 1. At the same time, the third control valve 901 is opened, and a certain proportion of pure water is added to the coagulation tank 1 through the inlet pipe 9 to ensure that the concentration of the coagulation liquid remains constant. In addition, when the coagulation liquid level is too high, while adding pure water to the coagulation tank 1 through the water inlet pipe 9, the fourth control valve 1001 is opened, and the coagulation liquid is discharged in time through the overflow pipe 10 until the coagulation liquid is diluted to the concentration specified in the process. Then, the addition of pure water to the coagulation tank 1 is stopped. This combination of pure water replenishment and overflow effectively controls the concentration of the coagulation liquid, is easy to adjust, and has a simple structure, allowing the coagulation liquid to quickly stabilize at the concentration specified in the process, thus ensuring the forming quality of the hollow fiber membrane filaments. It should be noted that a level gauge 103 is installed in the coagulation tank 1 to monitor the coagulation liquid level in the coagulation tank 1 in real time.

[0040] Furthermore, a discharge pipe 15 is provided at the bottom of the coagulation tank 1, and a fifth control valve 1501 is provided in the discharge pipe 15. The fifth control valve 1501 is used to control the opening and closing of the discharge pipe 15. Specifically, a discharge port is provided at the bottom of the coagulation tank 1, and the discharge pipe 15 is installed at the discharge port. After the coagulated liquid stabilizes at the concentration specified by the process, the fifth control valve 1501 is opened to discharge the coagulated liquid in the coagulation tank 1 through the discharge pipe 15, so that the coagulated liquid in the coagulation tank 1 stabilizes at the liquid level specified by the process.

[0041] The coagulation tank 1 is equipped with a heating rod 11, which provides auxiliary heating to the coagulation liquid within the tank to compensate for heat loss due to evaporation of the coagulation liquid and heat conduction through the tank and pipes. This ensures that the coagulation liquid remains stable at the process-specified temperature, thereby guaranteeing the forming quality of the hollow fiber membrane filaments. Furthermore, the heating rod 11 allows for flexible adjustment of the coagulation liquid temperature, enabling phase separation of the initial hollow fiber membrane filaments at different temperatures, further improving the product quality of the spun yarn.

[0042] In one embodiment of this utility model, several sets of detection instruments are arranged sequentially from top to bottom on the inner wall of the coagulation tank 1. Each set of detection instruments includes a concentration meter 101 and a first thermometer 102. Specifically, two sets of detection instruments are arranged, with the concentration meter 101 and the first thermometer 102 arranged alternately in the height direction. The two concentration meters 101 monitor in real time whether the concentration of the coagulated liquid is within the range specified by the process and whether the concentration of the coagulated liquid is uniform at various height positions within the coagulation tank 1. The first thermometer 102 monitors in real time whether the temperature of the coagulated liquid is within the range specified by the process and whether the temperature of the coagulated liquid is uniform at various height positions within the coagulation tank 1, facilitating timely intervention and adjustment by the operator.

[0043] It should be noted that when the solvent in the coagulation solution is DMAC (DMAC stands for Dimethylacetamide), then the concentration meter 101 is specifically a DMAC concentration meter 101.

[0044] In one embodiment of this utility model, a lifting mechanism 12 is provided at the upper end of the coagulation tank 1, and a vertical slide rail (not shown in the figure) is provided on the inner side wall of the coagulation tank 1. The vertical slide rail is slidably connected to the first guide wheel 13. The lifting mechanism 12 is connected to the first guide wheel 13 through a steel wire 1201. By controlling the forward and reverse rotation of the lifting mechanism 12, the first guide wheel 13 can be flexibly controlled to move up and down along the vertical track to control the height of the first guide wheel 13 in the coagulation tank 1. In addition, a second guide wheel 14 is also provided at the upper end of the coagulation tank 1. After the casting solution is extruded through the spinneret 17, it forms a hollow fiber membrane filament. After entering the coagulation solution, phase separation occurs to form hollow fiber membrane filaments with a microporous structure. The hollow fiber membrane filaments pass below the first guide wheel 13 and are drawn to the position of the second guide wheel 14. The second guide wheel 14 guides the hollow fiber membrane filaments to be drawn to the next production process.

[0045] The working principle of this invention is as follows: A circulating pump 5 extracts the coagulation liquid from the lower end of the coagulation tank 1 and transports it to the upper end, ensuring thorough and uniform mixing. Simultaneously, a gas with a set temperature and humidity is continuously supplied to the air section 2 via the air inlet pipe 3, maintaining stable temperature and humidity. The casting solution is discharged from the spinneret 17 to form a hollow fiber membrane filament, which is then ejected through the spinneret cover. Under gravity and subsequent traction, it passes through the air section 2 and finally falls into the coagulation liquid. Upon entering the coagulation liquid, the hollow fiber membrane filament undergoes phase separation, forming a hollow fiber membrane filament with a microporous structure. The hollow fiber membrane filament passes below the first guide wheel 13 and is drawn to the position of the second guide wheel 14, then passes above the second guide wheel 14 and is drawn to the next production process.

[0046] In summary, by inputting gas with a set temperature and humidity into air section 2, the temperature and humidity of air section 2 are kept stable at all times. At the same time, it prevents the hollow fiber membrane filaments from absorbing the high temperature and high humidity gaseous condensate of air section 2 and forming phase separation. This ensures that the phase separation of the hollow fiber membrane filaments begins in the condensate, guarantees the uniformity of humidity and temperature in the radial direction of the hollow fiber membrane filaments, and makes the surface structure of the hollow fiber membrane filaments uniform, effectively improving the forming quality of the hollow fiber membrane filaments.

[0047] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0048] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A spinning yarn processing device, characterized in that, include: A coagulation tank is filled with a coagulation liquid, and the portion of the coagulation tank above the liquid surface of the coagulation liquid is an air section. An air inlet pipe is located at the upper end of the solidification tank. The air inlet pipe is used to supply gas with a set temperature and humidity to the air section in order to regulate the temperature and humidity of the air section. A spinneret is located at the upper end of the coagulation tank. The spinneret is used to shape the casting liquid and spray out the hollow fiber membrane filaments. A circulating pump, the output end of which is connected to the upper end of the solidification tank, and the input end of which is connected to the lower end of the solidification tank and the water injection pipeline.

2. The spinning yarn processing equipment according to claim 1, characterized in that, An air disperser is provided at one end of the air inlet pipe in the solidification tank. The air disperser is used to reduce the flow rate of the gas when it is discharged from the air inlet pipe and to disperse the gas.

3. The spinning yarn processing equipment according to claim 2, characterized in that, The air intake pipeline is equipped with a first filter, a pressure regulating valve, a gas constant temperature heater, and a temperature and humidity controller.

4. The spinning yarn processing equipment according to claim 1, characterized in that, The circulation pump is equipped with a second filter at its input end and a heat exchanger at its output end.

5. The spinning yarn processing equipment according to claim 4, characterized in that, A protective cylinder is provided at the upper end of the solidification tank. The protective cylinder is connected to the interior of the solidification tank and is also connected to the output end of the circulation pump.

6. The spinning yarn processing equipment according to claim 1, characterized in that, The upper end of the coagulation tank is provided with a water inlet pipe and an overflow pipe.

7. The spinning yarn processing equipment according to claim 6, characterized in that, The bottom of the solidification tank is equipped with a discharge pipe.

8. A spinning yarn processing device according to any one of claims 1-7, characterized in that, The solidification tank is equipped with heating rods.

9. A spinning yarn processing device according to any one of claims 1-7, characterized in that, The inner wall of the coagulation tank is provided with several sets of detection instruments from top to bottom. Each set of detection instruments includes a DMAC concentration meter and a first thermometer.

10. A spinning yarn processing device according to any one of claims 1-7, characterized in that, A lifting mechanism is provided at the upper end of the solidification tank. A first guide wheel is slidably connected to the inner sidewall of the solidification tank. The lifting mechanism is connected to the first guide wheel via a steel wire. A second guide wheel is also provided at the upper end of the solidification tank.

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