A spinneret cleaning device

Abstract

The utility model provides a kind of spinneret cleaning device, including shell, the bottom of shell is formed with cleaning tank, opening for being used to put spinneret into cleaning tank is equipped on shell, and door body component for opening or closing opening, door body component includes the door body that can be slidably arranged at opening, lifting mechanism is equipped on shell for driving door body to slide upward and open.The utility model is opened by setting the door body that can be slid upward by lifting mechanism, can be conveniently put into cleaning tank by operator the spinneret to be cleaned, while it is also convenient to take out cleaning tank, improve the use convenience and the safety of cleaning operation of spinneret cleaning device.

Description

Technical Field

[0001] This utility model belongs to the field of spinneret cleaning technology, and specifically relates to a spinneret cleaning device. Background Technology

[0002] The spinneret is a core component in the chemical fiber production process. It has numerous tiny spinneret holes, which easily accumulate contaminants such as polymer residues and carbonization products during use. To ensure spinning quality and stability, the spinneret needs to be effectively cleaned during replacement or maintenance to ensure that the holes are clear and free of residue blockage.

[0003] Existing spinneret cleaning devices typically employ a flip-top or hinged door structure. This means the door is horizontally hinged to the top or side of the cleaning tank, and flips or opens outwards to expose the tank. This structure presents several inconveniences in practical use: First, when space is limited or the device is placed against a wall, the outward opening angle of the door is restricted, making it difficult to fully open and hindering the insertion or removal of the spinneret. Second, the outward-opening door may obstruct the operator's view or collide with surrounding equipment, posing a safety hazard. Third, the flip-top structure itself is affected by gravity, requiring significant operational force to open and close; long-term use can easily cause hinge wear or structural loosening, reducing the device's lifespan and safety.

[0004] Therefore, the urgent need for a spinneret cleaning device that allows operators to easily pick up and put down the spinneret while ensuring high safety in use has become a technical problem that needs to be solved by those skilled in the art.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] This utility model provides a spinneret cleaning device, which aims to solve the problem that existing spinneret cleaning devices are inconvenient to operate when the spinneret is placed in the cleaning tank due to structural limitations, thus affecting efficiency and safety.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A spinneret cleaning device includes a housing with a cleaning tank formed at the bottom of the housing. The housing has an opening for placing the spinneret into the cleaning tank and a door assembly for opening or closing the opening. The door assembly includes a door that is slidably disposed at the opening, and the housing has a lifting mechanism for driving the door to slide upward and open.

[0009] Furthermore, the door assembly includes a support frame that is slidably connected to the door body, the support frame being disposed on the housing, and a lifting mechanism being mounted on the support frame and connected to the door body.

[0010] Furthermore, the lifting mechanism includes: a guide wheel assembly, which is located on the top of the support frame; a counterweight block, which is located on the side of the support frame and is connected to the guide wheel assembly via a pull rope; and the other end of the pull rope is connected to the door body.

[0011] Furthermore, the guide wheel assembly includes a guide wheel support rod disposed on the top of the support frame and a guide wheel rotatably disposed on the guide wheel support rod. The pull rope is wound around the guide wheel, and one end of the pull rope connected to the door body and the other end connected to the counterweight are respectively disposed on opposite sides of the support frame.

[0012] Furthermore, the housing includes an exhaust hood covering the opening of the cleaning tank, with the opening located on the side of the exhaust hood; a support frame is located outside the exhaust hood, and the support frame includes a vertical frame connected to the edge of the cleaning tank opening and a horizontal frame located on the top of the vertical frame, with a guide wheel assembly mounted on the horizontal frame; the vertical frame has a groove extending in the vertical direction, and the left and right sides of the door are slidably embedded in the groove respectively.

[0013] Furthermore, a vertically extending cylindrical guide tube is provided between the horizontal frame and the exhaust hood, and the counterweight is cylindrical and located inside the guide tube.

[0014] Furthermore, doors are provided on opposite sides of the housing, and the extension direction of both doors is parallel to the length direction of the cleaning tank.

[0015] Furthermore, the cleaning tank is equipped with a low-pressure steam coil for heating the cleaning solution in the cleaning tank, and a compressed air coil; the compressed air coil is located near the bottom of the cleaning tank, and the compressed air coil is equipped with an air outlet for introducing compressed air into the cleaning solution.

[0016] Furthermore, at least a portion of the compressed air coil is horizontally offset from the low-pressure steam coil, and the opening of the air outlet faces upward.

[0017] Furthermore, the cleaning tank is equipped with a perforated plate for placing the spinneret. The perforated plate has several evenly distributed holes and is positioned above the compressed air coil.

[0018] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0019] 1. This utility model features a door that can be slidably opened upwards via a lifting mechanism, which facilitates the placement of the spinneret to be cleaned into the cleaning tank by the operator, and also facilitates the removal of the cleaning tank, thereby improving the ease of use and safety of the spinneret cleaning device.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the spinneret cleaning device in this embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the spinneret cleaning device from another perspective in an embodiment of this utility model.

[0024] Figure 3 This is a first-view structural schematic diagram of the cleaning tank in an embodiment of the present invention;

[0025] Figure 4 This is a second-view structural schematic diagram of the cleaning tank in an embodiment of the present invention;

[0026] Figure 5 This is a structural schematic diagram of the cleaning tank from a third-view perspective in an embodiment of this utility model.

[0027] Description of main components in the diagram:

[0028] 1. Cleaning tank; 101. Solvent addition port; 102. Demineralized water addition port; 103. Temperature detection unit; 1031. First detection point; 1032. Second detection point; 11. Compressed air coil; 110. Air outlet; 1100. Compressed air inlet; 111. Compressed air intake section; 112. Compressed air outlet section; 1121. First outlet section; 1122. Second outlet section; 12. Low-pressure steam coil; 121. Low... 122. Low-pressure steam inlet; 13. Perforated plate; 14. Spinneret; 15. Support component; 16. Support section; 17. Discharge port; 18. Sewage outlet; 2. Shell; 21. Exhaust hood; 22. Door assembly; 220. Door; 221. Lifting mechanism; 2210. Support frame; 2211. Guide wheel support rod; 2212. Guide wheel; 2213. Counterweight; 22130. Guide cylinder; 2214. Pull rope.

[0029] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] like Figures 1 to 5 As shown in the figure, this utility model embodiment discloses a spinneret cleaning device, including a cleaning tank 1, which is used to contain a cleaning solution and serves as a cleaning processing space for the spinneret 14.

[0034] like Figures 1 to 2 As shown, in this embodiment, the spinneret cleaning device includes a housing 2, with a cleaning tank 1 formed at the bottom of the housing 2 for accommodating and cleaning the spinneret 14. An opening is provided at the top of the housing 2 to facilitate the operator placing the spinneret 14 to be cleaned into the cleaning tank 1. To prevent impurities or moisture from overflowing during the cleaning process, the opening is equipped with an openable or closable door assembly 22.

[0035] Specifically, in this embodiment, the door assembly 22 includes a door body 220 slidably installed at the opening. The door body 220 can slide up and down in the vertical direction to open and close the opening. To improve the ease of opening, a lifting mechanism 221 is provided on the housing 2, which can drive the door body 220 to slide upward and open, allowing the operator to easily put in or take out the spinneret 14.

[0036] Furthermore, the door assembly 22 also includes a support frame 2210 for stabilizing and supporting the structure of the door 220. The support frame 2210 is disposed on the outside of the housing 2 and slidably connected to the door 220, for guiding and restricting the movement of the door 220. The lifting mechanism 221 is mounted on the support frame 2210 and connected to the door 220 via a pull rope 2214, thereby realizing the lifting control of the door 220.

[0037] Preferably, in this embodiment, the lifting mechanism 221 includes a guide wheel assembly disposed on the top of the support frame 2210 and a counterweight block 2213 disposed on the side of the support frame 2210. The guide wheel assembly is connected to a pull rope 2214, one end of which is connected to the door body 220, and the other end is connected to the counterweight block 2213. During the lifting process, the counterweight block 2213 generates a balancing force through the guide wheel assembly, which can significantly reduce the operating load on the door body 220 and improve the smoothness and safety of opening the door body 220.

[0038] In this embodiment, the guide wheel assembly specifically includes a guide wheel support rod 2211 mounted on the top of the support frame 2210, and multiple guide wheels 2212 rotatably mounted on the guide wheel support rod 2211. A pull rope 2214 is wound between the guide wheels 2212 and arranged in a spanning configuration, with its two ends connected to the door body 220 and the counterweight 2213 respectively. The pull rope 2214 can remain taut during the lifting and lowering of the door body 220 and effectively guide the stable movement of the door body 220.

[0039] In one specific embodiment, the housing 2 further includes an exhaust hood 21 covering the opening of the cleaning tank 1 for discharging hot and humid gases generated during the cleaning process. The opening is located on the side of the exhaust hood 21 to facilitate the installation of the door 220. A support frame 2210 is located outside the exhaust hood 21. The support frame 2210 includes a vertical frame extending upward from the edge of the opening of the cleaning tank 1, and a horizontal frame located at the top of the vertical frame. A guide wheel assembly is mounted on the horizontal frame.

[0040] More specifically, the exhaust hood 21 has an exhaust port at the top and its bottom edge is sealed to the edge of the cleaning tank 11.

[0041] Furthermore, in this embodiment, the bottom edge of the exhaust hood 21 is fixed to the edge of the cleaning tank 11 by bolt connection, and a sealing gasket is provided at the connection to achieve a sealed fit between the two. This can effectively prevent leakage of cleaning solution vapor or gas during the cleaning process while ensuring structural stability, thereby improving the sealing performance and operational safety of the device.

[0042] In order to achieve stable guidance of the door body 220, the vertical frame is provided with grooves extending in the vertical direction. The left and right edges of the door body 220 are respectively slidably embedded in the grooves, so that the door body 220 can rise and fall smoothly in the vertical direction without deviation or shaking, ensuring that the lifting process is smooth and reliable.

[0043] In this embodiment, a vertically extending cylindrical guide tube 22130 is connected between the horizontal frame and the exhaust hood 21, and a cylindrical counterweight 2213 is provided inside the guide tube 22130. The counterweight 2213 can slide up and down inside the guide tube 22130 to provide gravity balance for the lifting and lowering process of the door 220, making the entire opening action more effortless and providing a good operating feel.

[0044] Preferably, in this embodiment, two independent doors 220 are provided on opposite sides of the housing 2, respectively for closing the openings on the corresponding sides. The main body structure of the two doors 220 is arranged parallel to the length direction of the cleaning tank 1, which facilitates the formation of a symmetrical opening structure, and is especially suitable for large spinnerets 14 or dual-channel cleaning devices.

[0045] In this embodiment, since the cleaning tank 1 of this device has a large capacity, it can clean dozens of spinnerets 14 at the same time. Therefore, the above-mentioned structural design significantly improves the loading and unloading efficiency, reduces the waiting time, further improves the overall cleaning efficiency of the spinnerets 14 and the industrial adaptability of the cleaning process, and at the same time ensures the safety of the operators during operation.

[0046] In this embodiment, a low-pressure steam coil 12 is provided in the cleaning tank 1 to heat the cleaning solution. The low-pressure steam coil 12 is used to introduce low-pressure steam during the cleaning process to raise the temperature of the cleaning solution, thereby assisting in the dissolution or desorption of contaminants on the surface and in the pores of the spinneret 14.

[0047] Furthermore, the cleaning tank 1 is also equipped with a compressed air coil 11, which is located near the bottom of the cleaning tank 1 and has an air outlet 110. Compressed air is injected into the cleaning solution through the air outlet 110, forming an upward air bubble flow in the cleaning tank 1, which disturbs the cleaning solution and improves the cleaning efficiency of the spinneret 14.

[0048] Preferably, in this embodiment, to prevent the bubbles from being blocked or turbulent by the low-pressure steam coil 12 during their ascent, at least a portion of the compressed air coil 11 is arranged in a staggered manner with the low-pressure steam coil 12 in the horizontal direction; on the one hand, this can prevent the bubbles from adhering to the surface of the steam coil during their ascent, and on the other hand, it can reduce the bursting or displacement of the bubbles and maintain the stability of the turbulence.

[0049] In this embodiment, the compressed air coil 11 includes a compressed air outlet section 112 and a compressed air inlet section 111. One end of the compressed air inlet section 111 is connected to the compressed air outlet section 112, and the other end penetrates the side wall of the cleaning tank 1 and extends outward to form a compressed air inlet 1100 facing the outside of the cleaning tank 1. The compressed air inlet 1100 is used to connect to an external compressed air supply pipeline, so that compressed air can be stably input from the outside into the compressed air coil 11 and released into the cleaning solution through the air outlet 110 on the compressed air outlet section 112, thereby forming bubble turbulence in the cleaning solution.

[0050] Specifically, in this embodiment, the compressed air outlet section 112 is provided with multiple spaced-apart air outlets 110 for uniformly introducing compressed air into the cleaning solution, causing a dense and continuous bubble cluster to form inside the cleaning solution in a short time, thus prompting the cleaning solution to quickly reach a "boiling state". The "boiling state" is not physical boiling in the sense of the actual boiling point of a liquid, but refers to the large-scale tumbling and turbulence phenomenon formed by the continuous disturbance of bubbles in the cleaning solution, simulating the boiling effect to enhance the contact efficiency between the cleaning solution and the orifices of the spinneret 14.

[0051] More specifically, in this embodiment, the compressed air intake section 111 has a straight structure, with one end penetrating through the side wall of the cleaning tank 1 and extending outward to form a compressed air inlet 1100 facing the outside of the cleaning tank 1, which is used to connect to an external air source.

[0052] In this embodiment, a support member 15 is provided at the bottom of the cleaning tank 1 to ensure the stability of the compressed air coil 11 during use. The upper end of the support member 15 abuts against the pipe wall of the compressed air outlet section 112 on the side away from the compressed air inlet 1100. It not only provides structural support but also prevents the compressed air from sagging or shifting due to pressure on the pipe after it is introduced, thereby enhancing the stability of the device and the cleaning effect.

[0053] Specifically, in this embodiment, the bottom of the cleaning tank 1 is provided with at least one support member 15, and the upper end of the at least one support member 15 abuts against the pipe wall of the compressed air outlet section 112 on the side away from the compressed air inlet 1100.

[0054] Preferably, in this embodiment, the support member 15 is provided with multiple members arranged at intervals, all of which are used to support the air outlet section of the compressed air coil 11.

[0055] In this embodiment, the low-pressure steam coil 12 is located below the compressed air coil 11, thereby further preventing it from obstructing the compressed air outlet path and helping to maintain the bubble rising path.

[0056] In some possible embodiments, the air outlet 110 may be opened downward or arranged at an inclined angle to adapt to different cleaning needs, so as to adjust the direction and distribution density of bubble turbulence, thereby optimizing the cleaning effect on different types of spinnerets 14.

[0057] like Figure 4 As shown, in this embodiment, the compressed air outlet section 112 includes a first outlet section 1121 and a second outlet section 1122. The first outlet section 1121 extends around the inner wall of the cleaning tank 1 and encloses it to form a frame structure. The second outlet section 1122 is located inside the enclosed area of ​​the frame structure, and its two ends are respectively connected to the opposite sides of the frame structure, which is used to divide the enclosed area of ​​the frame structure into two sub-areas.

[0058] Specifically, in this embodiment, the projection of the enclosed area of ​​the frame structure on the horizontal plane at least partially overlaps with the projection of the low-pressure steam coil 12 on the same horizontal plane.

[0059] Preferably, in this embodiment, the low-pressure steam coil 12 adopts a spiral coil structure, with both ends penetrating the sidewall of the same side of the cleaning tank 1 to form a low-pressure steam inlet 121 and a low-pressure steam outlet 122 facing outwards, respectively. The low-pressure steam inlet 121 and the low-pressure steam outlet 122 are located on the same side of the cleaning tank 1 as the compressed air inlet 1100, which facilitates unified pipe laying and maintenance operations.

[0060] More specifically, in this embodiment, one end of the second air outlet section 1122 is provided with a four-way connector and is connected to the first air outlet section 1121 and the compressed air inlet section 111 through the four-way connector, and the other end is connected to the first air outlet section 1121 through a three-way connector.

[0061] In this embodiment, the perforated plate 13 for placing the spinneret 14 in the cleaning tank 1 is arranged above the compressed air coil 11. The perforated plate 13 has several evenly distributed holes to achieve effective rise and circulation of the cleaning solution and bubbles below the spinneret 14, thereby achieving efficient cleaning of the spinneret 14.

[0062] Specifically, such as Figure 4 As shown in the figure, in this embodiment, the perforated plate 13 is provided with a number of holes. Only some holes are shown in the figure. In the actual structure, the holes are evenly distributed throughout the perforated plate 13.

[0063] Preferably, in this embodiment, the holes are arranged in multiple rows along the length of the cleaning tank 1, and adjacent rows of holes are staggered along the width of the cleaning tank 1 to improve the uniformity of cleaning.

[0064] In one specific embodiment, multiple rows of spinnerets 14 are spaced apart along the width of the cleaning tank 1. Preferably, there are at least three rows of spinnerets 14, and each row has more than ten spinnerets 14 spaced apart along the length of the cleaning tank 1. Thus, the spinneret cleaning device can clean at least 30 spinnerets 14 at a time, greatly improving cleaning efficiency and effectively avoiding environmental pollution caused by repeatedly picking up and putting down the spinnerets 14.

[0065] In a preferred embodiment, each row of spinnerets 14 is provided with thirteen spinnerets, and the cleaning tank 1 can accommodate at least 39 spinnerets 14 for simultaneous cleaning at one time.

[0066] In a preferred embodiment, the inner wall of the cleaning tank 1 is provided with a plurality of support portions 16 for supporting the perforated plate 13. The plurality of support portions 16 are spaced apart on the inner wall of the cleaning tank 1 and arranged in a horizontal direction to form a support surface for supporting the perforated plate 13 inside the cleaning tank 1. The perforated plate 13 is placed on the support portion 16 and makes stable contact with it, thereby achieving stable support for the perforated plate 13, further enhancing the stability of the spinneret 14 supported by the perforated plate 13 during operation, avoiding shaking or sinking caused by liquid flow disturbance or a large number of spinnerets 14, ensuring the orderly progress of the cleaning process and uniform treatment of the multiple spinnerets 14.

[0067] In this embodiment, the bottom of the cleaning tank 1 is provided with a discharge port 17 and a drain port 18. The discharge port 17 is connected to the recovery device and is used to discharge the used solvent or demineralized water. The bottom of the cleaning tank 1 is inclined. The discharge port 17 and the drain port 18 are arranged sequentially on the bottom wall of the cleaning tank 1 along the inclined direction. The drain port 18 is located at the lowest point of the cleaning tank 1 and is used to discharge deposited impurities and residual liquid, ensuring that the cleaning solution is drained in time and facilitating the cleaning and maintenance of the cleaning tank 1.

[0068] In this embodiment, the side wall of the cleaning tank 1 is provided with a solvent addition port 101 and a desalination water addition port 102, which are used to add the corresponding cleaning solution to the cleaning tank 1 at different cleaning stages.

[0069] Preferably, in this embodiment, the solvent addition port 101 and the demineralized water addition port 102 are both located near the top of the cleaning tank 1 and on the same side of the cleaning tank 1 as the compressed air inlet 1100, which facilitates unified pipe laying and operation control.

[0070] In this embodiment, the side wall of the cleaning tank 1 is provided with a solvent addition port 101 and a demineralized water addition port 102, which are used to add solvent and demineralized water to the cleaning tank 1 at different cleaning stages, respectively.

[0071] Specifically, in this embodiment, the solvent addition port 101 and the demineralized water addition port 102 are both located near the top of the cleaning tank 1, and are located on the same side of the cleaning tank 1 as the compressed air inlet 1100.

[0072] In this embodiment, the solvent is dimethyl sulfoxide (DMSO), which is suitable for dissolving the residual stock solution and reaction byproducts on the surface of the spinneret 14. Furthermore, the concentration of DMSO used is preferably 99% to achieve a good dissolving effect. After cleaning the spinneret 14 with DMSO, demineralized water is used to further clean the residual DMSO on the surface of the spinneret 14 to ensure the surface of the spinneret 14 is clean.

[0073] In this embodiment, the cleaning tank 1 is also provided with a temperature detection unit 103, which includes a first detection point 1031 and a second detection point 1032. The first detection point 1031 is located near the top of the cleaning tank 1, and the second detection point 1032 is located near the bottom of the cleaning tank 1, respectively used to detect the temperature change of the cleaning solution at different liquid levels.

[0074] In the above embodiments, temperature detection points distributed vertically can acquire real-time temperature gradient information of the cleaning solution in the vertical direction, thereby determining the uniformity of the heating effect and whether the cleaning solution meets the set heating standard. Simultaneously, the detection results can be fed back to the temperature control system, enabling closed-loop regulation and control of the low-pressure steam heating process. This improves temperature stability and heating efficiency during the cleaning process, ensuring that the spinneret 14 operates under the expected temperature conditions throughout the cleaning process, effectively enhancing the cleaning effect and system safety.

[0075] Specifically, in this embodiment, the temperature detection unit 103 and the compressed air inlet 1100 are both located on the same side of the cleaning tank 1.

[0076] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A spinneret cleaning device, comprising a housing (2), a cleaning tank (1) formed at the bottom of the housing (2), an opening for placing a spinneret (14) into the cleaning tank (1) on the housing (2), and a door assembly (22) for opening or closing the opening, characterized in that, The door assembly (22) includes a door body (220) that can be slidably disposed at the opening, and a lifting mechanism (221) is provided on the housing (2) for driving the door body (220) to slide upward and open.

2. The spinneret cleaning device according to claim 1, characterized in that, The door assembly (22) includes a support frame (2210) that is slidably connected to the door body (220). The support frame (2210) is disposed on the housing (2). The lifting mechanism (221) is mounted on the support frame (2210) and connected to the door body (220).

3. The spinneret cleaning device according to claim 2, characterized in that, The lifting mechanism (221) includes: The guide wheel assembly is located on top of the support frame (2210). A counterweight (2213) is set on the side of the support frame (2210) and connected to the guide wheel assembly via a pull rope (2214). The other end of the pull rope (2214) is connected to the door body (220).

4. The spinneret cleaning device according to claim 3, characterized in that, The guide wheel assembly includes a guide wheel support rod (2211) disposed on the top of the support frame (2210) and a guide wheel (2212) rotatably disposed on the guide wheel support rod (2211). A pull rope (2214) is wound around the guide wheel (2212), and one end of the pull rope (2214) connected to the door body (220) and the other end connected to the counterweight (2213) are respectively disposed on opposite sides of the support frame (2210).

5. The spinneret cleaning device according to claim 3 or 4, characterized in that, The housing (2) includes an exhaust hood (21) covering the opening of the cleaning tank (1), with the opening located on the side of the exhaust hood (21); The support frame (2210) is located outside the exhaust hood (21). The support frame (2210) includes a vertical frame connected to the edge of the cleaning tank (1) and a horizontal frame located on the top of the vertical frame. The guide wheel assembly is installed on the horizontal frame. The vertical frame is provided with a groove extending in the vertical direction. The left and right sides of the door (220) are respectively slidably embedded in the groove.

6. The spinneret cleaning device according to claim 5, characterized in that, A vertically extending cylindrical guide tube (22130) is provided between the horizontal frame and the exhaust hood (21), and the counterweight (2213) is cylindrical and located inside the guide tube (22130).

7. The spinneret cleaning apparatus according to any one of claims 1 to 4, characterized in that, Doors (220) are provided on opposite sides of the housing (2), and the extension direction of the two doors (220) is parallel to the length direction of the cleaning tank (1).

8. The spinneret cleaning apparatus according to any one of claims 1 to 4, characterized in that, The cleaning tank (1) is equipped with a low-pressure steam coil (12) for heating the cleaning solution in the cleaning tank (1) and a compressed air coil (11); the compressed air coil (11) is located near the bottom of the cleaning tank (1) and is provided with an air outlet (110) for introducing compressed air into the cleaning solution.

9. The spinneret cleaning device according to claim 8, characterized in that, At least a portion of the compressed air coil (11) is horizontally offset from the low-pressure steam coil (12), and the opening of the air outlet (110) is upward.

10. The spinneret cleaning device according to claim 9, characterized in that, The cleaning tank (1) is provided with a perforated plate (13) for placing the spinneret (14). The perforated plate (13) has several evenly distributed holes and is positioned above the compressed air coil (11).

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