An industrial ultrafiltration membrane filament forming apparatus

By employing a vertical cooling device and a drive motor to rotate the nozzle in the membrane fiber forming equipment, the problems of membrane fiber deformation before cooling and uneven coolant distribution were solved, achieving efficient cooling and improved quality of the membrane fiber.

CN224564775UActive Publication Date: 2026-07-28SHANDONG LANSHU MEMBRANE ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG LANSHU MEMBRANE ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-07-24
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

In existing technologies, membrane fibers are prone to deformation due to gravity before cooling, and the coolant spray is uneven, which affects the cooling efficiency and quality of the membrane fibers.

Method used

The vertically installed cooling device uses a drive motor to rotate the vertical pipe, causing the nozzle to revolve around the membrane filament. Combined with the design of the stirring rod and fan blades, it achieves uniform spraying and rapid cooling of the coolant.

Benefits of technology

This ensures that the membrane fibers do not deform during the cooling process, improves the uniformity of coolant spray and cooling efficiency, and enhances the quality and service life of the membrane fibers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an industrial ultrafiltration membrane filament forming equipment relates to membrane filament forming technical field, a kind of industrial ultrafiltration membrane filament forming equipment, including cooling box, still include: standpipe, rotation is installed in the upper end of the cooling box, and the lower end of the standpipe extends to cooling box, wherein, the inner wall of the cooling box is fixedly installed with multiple circumferential distribution's spray head, the cooling box is equipped with the liquid supply part for the liquid supply of spray head, and the cooling box is equipped with the drive part of the drive standpipe rotation;First guide wheel, rotation is installed in the cooling box, wherein, the first guide wheel is close to the lower end of standpipe, and the upper end of the cooling box is rotationally installed with second guide wheel;The utility model can make that membrane filament is not suitable and appears deformation before cooling, guarantees the quality of membrane filament, and can promote the uniformity of cooling liquid injection, so that the quality and efficiency of membrane filament cooling are all promoted.
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Description

Technical Field

[0001] This utility model belongs to the field of membrane fiber forming technology, specifically, it relates to an industrial ultrafiltration membrane fiber forming device. Background Technology

[0002] Ultrafiltration membrane fibers are the core component of ultrafiltration membrane modules, and their performance directly affects the filtration efficiency and lifespan of the ultrafiltration system. Currently, ultrafiltration membrane fibers are mainly produced using a dry-wet spinning process, which involves extruding polymer casting solutions (such as polyvinylidene fluoride PVDF, polyethersulfone PES, etc.) through a spinning machine, followed by cooling, curing, and winding processes.

[0003] In existing technologies, when cooling membrane fibers, the fibers enter the cooling equipment laterally or at an angle. This can cause the fibers to deform due to gravity before cooling, affecting their quality. Furthermore, existing cooling equipment cannot evenly spray the coolant onto the outer wall of the membrane fibers, resulting in poor cooling efficiency and effect. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an industrial ultrafiltration membrane fiber forming device that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] An industrial ultrafiltration membrane fiber forming device includes a cooling box and further includes: a vertical pipe rotatably mounted on the upper end of the cooling box, with the lower end of the vertical pipe extending into the cooling box; wherein a plurality of circumferentially distributed nozzles are fixedly mounted on the inner wall of the cooling box; a liquid supply part for supplying liquid to the nozzles is provided inside the cooling box; and a driving part for driving the vertical pipe to rotate is provided on the cooling box; a first guide wheel rotatably mounted inside the cooling box, wherein the first guide wheel is close to the lower end of the vertical pipe; and a second guide wheel is rotatably mounted on the upper end of the cooling box.

[0007] Preferably, the liquid supply unit includes a pump body fixedly installed on the outer wall of the cooling tank, the input end of the pump body is fixedly connected to a water inlet pipe extending into the cooling tank, the output end of the pump body is connected to a water outlet pipe, and the water outlet pipe is connected to the nozzle through a connecting part.

[0008] Furthermore, the connecting part includes an annular cavity disposed in the inner wall of the vertical pipe, the input end of the nozzle is connected to the annular cavity, the outer wall of the vertical pipe is provided with an outer hole communicating with the annular cavity, an annular cover is rotatably connected to the outer wall of the vertical pipe, the outer hole is connected to the annular cover, and the water outlet pipe is fixedly connected to and communicates with the annular cover.

[0009] Preferably, the drive unit includes a drive motor fixedly mounted on the outer wall of the cooling box, and the output shaft of the drive motor and the outer wall of the vertical tube are both fixedly mounted with first gears, and the two first gears are meshed with each other.

[0010] Furthermore, the outer wall of the cooling box is rotatably connected to a heat dissipation pipe that extends to the other end. A stirring rod located inside the cooling box is fixedly installed on the outer wall of the heat dissipation pipe, and a fan blade is fixedly installed on the inner wall of the heat dissipation pipe.

[0011] Furthermore, the output shaft of the drive motor and the outer wall of the heat sink are both fixedly mounted with second gears, and the two second gears are meshed together.

[0012] Furthermore, filters are installed at both ends of the heat dissipation pipe.

[0013] Furthermore, a filter element is installed inside the water inlet pipe.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0015] 1. This utility model achieves the cooling and shaping of the membrane filaments by vertically extruding the membrane filaments into a vertical tube using a membrane filament extrusion device, and then spraying coolant onto the outer wall of the membrane filaments through a nozzle. Since the membrane filaments enter the vertical tube vertically, they are less likely to deform before cooling, thus ensuring the quality of the membrane filaments.

[0016] 2. This utility model uses a drive motor to rotate a vertical tube, which in turn drives multiple nozzles to revolve around the membrane filament. This allows the nozzles to spray coolant more evenly onto the outer wall of the membrane filament, thereby improving the uniformity of coolant spray and enhancing both the quality and efficiency of membrane filament cooling.

[0017] 3. This utility model uses a drive motor to drive a stirring rod to stir the coolant in the cooling tank, and the heat dissipation pipe also drives the fan blades on the inner wall to rotate, thereby completing the rapid cooling of the coolant in the cooling tank and enabling the coolant to maintain good heat dissipation and forming of the film filaments.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] In the attached diagram:

[0020] Figure 1 A three-dimensional structural diagram of an industrial ultrafiltration membrane fiber forming device proposed in this utility model. Figure 1 ;

[0021] Figure 2 A three-dimensional structural diagram of an industrial ultrafiltration membrane fiber forming device proposed in this utility model. Figure 2 ;

[0022] Figure 3 This is a cross-sectional structural diagram of an industrial ultrafiltration membrane fiber forming device proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the vertical tube structure of an industrial ultrafiltration membrane fiber forming device proposed in this utility model;

[0024] Figure 5 This utility model proposes an industrial ultrafiltration membrane fiber forming device. Figure 3 Schematic diagram of part A in the middle.

[0025] In the diagram: 1. Cooling tank; 2. Vertical pipe; 3. Annular cavity; 4. Nozzle; 5. Annular cover; 6. Outer hole; 7. Pump body; 8. Water outlet pipe; 9. Water inlet pipe; 10. Filter element; 11. First guide wheel; 12. Second guide wheel; 13. Drive motor; 14. First gear; 15. Heat dissipation pipe; 16. Stirring rod; 17. Fan blade; 18. Second gear; 19. Filter screen. Detailed Implementation

[0026] 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.

[0027] Example: Refer to Figures 1-5 An industrial ultrafiltration membrane fiber forming device includes a cooling tank 1 for storing coolant, which is used to cool and shape the membrane fibers. It also includes: a vertically oriented vertical pipe 2, rotatably mounted on the upper end of the cooling tank 1, with the lower end of the vertical pipe 2 extending into the cooling tank 1; multiple circumferentially distributed nozzles 4 fixedly mounted on the inner wall of the cooling tank 1; a liquid supply section for supplying liquid to the nozzles 4 within the cooling tank 1; a drive section for driving the vertical pipe 2 to rotate on the cooling tank 1; the drive section includes a drive motor 13 fixedly mounted on the outer wall of the cooling tank 1; a first gear 14 fixedly mounted on both the output shaft of the drive motor 13 and the outer wall of the vertical pipe 2; two first gears 14 meshing with each other; and a first guide wheel 11 rotatably mounted inside the cooling tank 1, with the first guide wheel 11 close to the lower end of the vertical pipe 2. A second guide wheel 12 is rotatably mounted on the upper end of the cooling tank 1.

[0028] Specifically, in use, the membrane extrusion device vertically extrudes the membrane fibers into the vertical tube 2, and then coolant is supplied through the liquid supply nozzles 4. The nozzles 4 spray the coolant onto the outer wall of the membrane fibers, thus completing the cooling and shaping of the membrane fibers. Since the membrane fibers enter the vertical tube 2 vertically, they are less likely to deform before cooling, ensuring the quality of the membrane fibers. The drive motor 13 drives the vertical tube 2 to rotate through two meshing first gears 14, and the vertical tube 2 drives multiple nozzles 4 to revolve around the membrane fibers, so that the nozzles 4 can spray the coolant onto the outer wall of the membrane fibers more evenly, thereby improving the uniformity of the coolant spray and improving the quality and efficiency of membrane fiber cooling. After the membrane fibers are cooled, they pass around the first guide wheel 11 and the second guide wheel 12, allowing the membrane fibers to be discharged from the cooling box 1 for subsequent winding.

[0029] The aforementioned liquid supply unit includes a pump body 7 fixedly installed on the outer wall of the cooling tank 1. The input end of the pump body 7 is fixedly connected to an inlet pipe 9 extending into the cooling tank 1. A filter element 10 for filtering coolant is installed inside the inlet pipe 9. The output end of the pump body 7 is connected to an outlet pipe 8. The outlet pipe 8 is connected to the nozzle 4 through a connecting part. The connecting part includes an annular cavity 3 set in the inner wall of the vertical pipe 2. The input end of the nozzle 4 is connected to the annular cavity 3. The outer wall of the vertical pipe 2 is provided with an outer hole 6 communicating with the annular cavity 3. An annular cover 5 is rotatably connected to the outer wall of the vertical pipe 2. The outer hole 6 is connected to the annular cover 5. The outlet pipe 8 is fixedly connected to and communicates with the annular cover 5.

[0030] Specifically, when the nozzle 4 needs to spray coolant, the pump body 7 is started. The pump body 7 draws coolant from the cooling tank 1 through the inlet pipe 9, and then delivers it to the annular cover 5 through the outlet pipe 8. Next, it enters the annular cavity 3 through the outer hole 6, and finally sprays it from the nozzle 4 on the inner wall of the vertical pipe 2 onto the outer wall of the membrane fiber, thus completing the cooling and shaping of the membrane fiber.

[0031] The outer wall of the aforementioned cooling box 1 is rotatably connected to a heat dissipation pipe 15 that extends to the other end. The heat dissipation pipe 15 is made of stainless steel or copper alloy. A stirring rod 16 located inside the cooling box 1 is fixedly installed on the outer wall of the heat dissipation pipe 15. A fan blade 17 is fixedly installed on the inner wall of the heat dissipation pipe 15. A second gear 18 is fixedly installed on both the output shaft of the drive motor 13 and the outer wall of the heat dissipation pipe 15. The two second gears 18 are meshed and connected. Filter screens 19 for filtering dust are installed at both ends of the heat dissipation pipe 15.

[0032] Specifically, during the cooling and shaping of the membrane filaments, the coolant discharged from the vertical pipe 2 will flow back into the cooling tank 1. The drive motor 13 will drive the heat dissipation pipe 15 to rotate through two meshing second gears 18. The heat dissipation pipe 15 will drive the stirring rod 16 to stir the coolant in the cooling tank 1. The heat dissipation pipe 15 will also drive the fan blades 17 on the inner wall to rotate, thereby completing the rapid cooling of the coolant in the cooling tank 1 and enabling the coolant to maintain good heat dissipation and shaping of the membrane filaments.

[0033] In operation, this industrial ultrafiltration membrane fiber forming equipment uses a vertical extrusion device to force the membrane fibers into the vertical tube 2. Then, the pump body 7 and drive motor 13 are activated. The pump body 7 draws coolant from the cooling tank 1 through the inlet pipe 9, and then delivers it to the annular shroud 5 through the outlet pipe 8. The coolant then enters the annular cavity 3 through the outer hole 6, and finally is sprayed onto the outer wall of the membrane fibers from the nozzles 4 on the inner wall of the vertical tube 2, thus completing the cooling and shaping process of the membrane fibers. Because the membrane fibers enter the vertical tube 2 vertically, deformation is less likely to occur before cooling. This ensures the quality of the membrane fiber. The drive motor 13 drives the vertical tube 2 to rotate through two meshing first gears 14. The vertical tube 2 drives multiple nozzles 4 to revolve around the membrane fiber, so that the nozzles 4 can spray the coolant onto the outer wall of the membrane fiber more evenly, thereby improving the uniformity of the coolant spray and improving the quality and efficiency of membrane fiber cooling. After the membrane fiber is cooled, it passes around the first guide wheel 11 and the second guide wheel 12 and is discharged from the cooling box 1, so that it can be wound into the membrane fiber in the future.

[0034] 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 a preferred embodiment, 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. 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. An industrial ultrafiltration membrane fiber forming device, comprising a cooling box (1), characterized in that, Also includes: A vertical pipe (2) is rotatably mounted on the upper end of the cooling box (1), and the lower end of the vertical pipe (2) extends into the cooling box (1). The inner wall of the cooling box (1) is fixedly equipped with a plurality of circumferentially distributed nozzles (4), the cooling box (1) is provided with a liquid supply part for supplying liquid to the nozzles (4), and the cooling box (1) is provided with a drive part for driving the vertical pipe (2) to rotate. The first guide wheel (11) is rotatably installed inside the cooling box (1). The first guide wheel (11) is located near the lower end of the vertical pipe (2), and the upper end of the cooling box (1) is rotatably equipped with a second guide wheel (12).

2. The industrial ultrafiltration membrane fiber forming equipment according to claim 1, characterized in that, The liquid supply unit includes a pump body (7) fixedly installed on the outer wall of the cooling box (1). The input end of the pump body (7) is fixedly connected to a water inlet pipe (9) extending into the cooling box (1). The output end of the pump body (7) is connected to a water outlet pipe (8). The water outlet pipe (8) is connected to the nozzle (4) through a connecting part.

3. The industrial ultrafiltration membrane fiber forming equipment according to claim 2, characterized in that, The connecting part includes an annular cavity (3) disposed in the inner wall of the vertical pipe (2), the input end of the nozzle (4) is connected to the annular cavity (3), the outer wall of the vertical pipe (2) is provided with an outer hole (6) communicating with the annular cavity (3), the outer wall of the vertical pipe (2) is rotatably connected with an annular cover (5), the outer hole (6) is connected to the annular cover (5), and the water outlet pipe (8) is fixedly connected to and communicates with the annular cover (5).

4. The industrial ultrafiltration membrane fiber forming equipment according to claim 1, characterized in that, The drive unit includes a drive motor (13) fixedly installed on the outer wall of the cooling box (1). The output shaft of the drive motor (13) and the outer wall of the vertical tube (2) are both fixedly installed with first gears (14), and the two first gears (14) mesh with each other.

5. The industrial ultrafiltration membrane fiber forming equipment according to claim 4, characterized in that, The outer wall of the cooling box (1) is rotatably connected to a heat dissipation pipe (15) that extends to the other end. A stirring rod (16) located inside the cooling box (1) is fixedly installed on the outer wall of the heat dissipation pipe (15), and a fan blade (17) is fixedly installed on the inner wall of the heat dissipation pipe (15).

6. The industrial ultrafiltration membrane fiber forming equipment according to claim 5, characterized in that, The output shaft of the drive motor (13) and the outer wall of the heat sink (15) are both fixedly mounted with second gears (18), and the two second gears (18) are meshed together.

7. The industrial ultrafiltration membrane fiber forming equipment according to claim 5, characterized in that, Both ends of the heat dissipation pipe (15) are equipped with filters (19).

8. The industrial ultrafiltration membrane fiber forming equipment according to claim 2, characterized in that, A filter element (10) is installed inside the water inlet pipe (9).