A preparation device for hollow fiber membranes and flat membranes

Abstract

The present invention belongs to the technical field of membrane preparation, and discloses a preparation device for hollow fiber membranes and flat membranes, which includes a hollow fiber membrane preparation component and a flat membrane preparation component. The two components share a material tank, a cleaning liquid tank, a winding wheel, and a conveying wheel set; the hollow fiber membrane preparation component includes a first nozzle and a first guide wheel; the flat membrane preparation component includes an unwinding wheel, a feeding wheel, and a feeding member; the device also includes a feeding pipe, the inlet of the feeding pipe is communicated with the outlet of the material tank, and a regulating valve is provided on the feeding pipe, and the regulating valve enables the inlet to be selectively communicated with the first outlet or the second outlet; the first nozzle is arranged at the first outlet, and the first guide wheel is arranged between the first nozzle and the conveying wheel set; the feeding wheel is arranged between the unwinding wheel and the conveying wheel set, the feeding member is arranged at the second outlet, and the outlet of the feeding member is arranged at an interval from the feeding wheel. This device can not only prepare hollow fiber membranes but also prepare flat membranes, has simple operation, small occupied space, low equipment cost, and can realize large-scale production.

Description

Technical Field

[0001] The present invention relates to the technical field of membrane preparation, and particularly to a device for preparing hollow fiber membranes and flat membranes. Background Art

[0002] Hollow fiber membranes and flat membranes are widely used in the fields of water treatment and gas separation. In the prior art, a spinning device is used to prepare hollow fiber membranes, and a flat membrane preparation device is used to prepare flat membranes. The two sets of devices are independently arranged and operated separately, occupying a large space and having a high equipment cost. Summary of the Invention

[0003] The purpose of the present invention is to provide a device for preparing hollow fiber membranes and flat membranes, which can not only prepare hollow fiber membranes but also prepare flat membranes, with simple operation, small occupied space and low equipment cost.

[0004] To achieve the above purpose, the following technical solutions are provided:

[0005] A device for preparing hollow fiber membranes and flat membranes includes a hollow fiber membrane preparation component and a flat membrane preparation component. The hollow fiber membrane preparation component and the flat membrane preparation component share a material tank, a cleaning liquid tank and a winding wheel arranged in sequence. A conveying wheel group is arranged in the cleaning liquid tank;

[0006] The hollow fiber membrane preparation component further includes a first nozzle and a first guide wheel;

[0007] The flat membrane preparation component further includes an unwinding wheel, a feeding wheel and a feeding member;

[0008] The device for preparing hollow fiber membranes and flat membranes further includes a feeding pipe, which includes an inlet, a first outlet and a second outlet. The inlet is communicated with the discharge port of the material tank. A regulating valve is arranged on the feeding pipe, and the regulating valve makes the inlet selectively communicate with the first outlet or the second outlet;

[0009] The first nozzle is arranged at the first outlet, and the first guide wheel is arranged between the first nozzle and the conveying wheel group;

[0010] The feeding wheel is arranged between the unwinding wheel and the conveying wheel group, the feeding member is arranged at the second outlet, and the discharge port of the feeding member is spaced from the feeding wheel.

[0011] As an optional solution of the device for preparing hollow fiber membranes and flat membranes of the present invention, it further includes a driving component, and the driving component is used to drive the winding wheel to rotate.

[0012] As an alternative solution for the preparation device of the hollow fiber membrane and flat membrane of the present invention, the driving assembly includes a motor and a transmission, and the output end of the motor is connected to the winding wheel through the transmission.

[0013] As an alternative solution for the preparation device of the hollow fiber membrane and flat membrane of the present invention, the flat membrane preparation assembly further includes a first tensioning wheel and a second guiding wheel. The first tensioning wheel is arranged between the unwinding wheel and the feeding wheel, and the second guiding wheel is arranged between the first tensioning wheel and the feeding wheel.

[0014] As an alternative solution for the preparation device of the hollow fiber membrane and flat membrane of the present invention, the flat membrane preparation assembly further includes a first bracket and a second bracket. The second bracket is rotatably arranged on the first bracket, and the feeding member is arranged on the second bracket.

[0015] As an alternative solution for the preparation device of the hollow fiber membrane and flat membrane of the present invention, the feeding member can move radially along the feeding wheel relative to the second bracket.

[0016] As an alternative solution for the preparation device of the hollow fiber membrane and flat membrane of the present invention, the material conveying pipe includes a main pipe, a first branch pipe and a second branch pipe. One end of the main pipe is the inlet, one ends of the first branch pipe and the second branch pipe are connected to the other end of the main pipe through the regulating valve, the other end of the first branch pipe is the first outlet, and the other end of the second branch pipe is the second outlet; the length of the first branch pipe is adjustable.

[0017] As an alternative solution for the preparation device of the hollow fiber membrane and flat membrane of the present invention, the conveying wheel group includes a second tensioning wheel and a plurality of third guiding wheels.

[0018] As an alternative solution for the preparation device of the hollow fiber membrane and flat membrane of the present invention, it further includes a liquid inlet pipe and a second spray head. The second spray head is arranged at the liquid outlet of the liquid inlet pipe, the second spray head faces the winding wheel, and the winding wheel is located above the cleaning liquid pool.

[0019] As an alternative solution for the preparation device of the hollow fiber membrane and flat membrane of the present invention, a liquid discharge port is arranged at the bottom of the cleaning liquid pool, a liquid discharge pipe is arranged at the liquid discharge port, an overflow tank is arranged in the cleaning liquid pool, and the liquid discharge pipe is also communicated with the overflow tank.

[0020] The beneficial effects of the present invention are:

[0021] The preparation device for hollow fiber membranes and flat membranes provided by the present invention, when preparing hollow fiber membranes, the regulating valve connects the inlet and the first outlet of the feed pipe, while the inlet and the second outlet are not connected. The material in the material tank is sprayed out through the first nozzle at the first outlet of the feed pipe to form fiber membrane filaments. After passing through the first guide wheel and the conveying wheel group, the fiber membrane filaments are wound onto the winding wheel. When the fiber membrane filaments are conveyed by the conveying wheel group, they are cleaned and cooled by the cleaning liquid in the cleaning liquid tank; there is an unfed flat membrane wound on the unwinding wheel. When preparing the flat membrane, the unwinding wheel releases the unfed flat membrane thereon, and the unfed flat membrane is conveyed to the feeding wheel. At the same time, the regulating valve connects the inlet and the second outlet of the feed pipe, and the inlet and the first outlet are not connected. The material in the material tank flows to the feeding part through the second outlet, and then is added to the unfed flat membrane on the feeding wheel by the feeding part to obtain the flat membrane. The flat membrane is then conveyed by the conveying wheel group and finally wound onto the winding wheel. When the flat membrane is conveyed by the conveying wheel group, it is cooled and cleaned by the cleaning liquid in the cleaning liquid tank.

[0022] The preparation device for hollow fiber membranes and flat membranes of the present invention shares a material tank, a conveying wheel group, a cleaning liquid tank and a winding wheel. The material flowing out of the material tank is adjusted in flow direction through the feed pipe and the regulating valve thereon, so as to be used for making hollow fiber membranes and flat membranes respectively. The first guide wheel guides the fiber membrane filaments sprayed out from the first outlet to the conveying wheel group and finally winds them onto the winding wheel. The feeding wheel guides the flat membrane to the conveying wheel group and finally winds it onto the winding wheel. The preparation device for hollow fiber membranes and flat membranes can not only prepare hollow fiber membranes but also prepare flat membranes. It has simple operation, small floor space and low equipment cost, and can achieve large-scale and efficient production. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present invention and these drawings.

[0024] Figure 1 It is a schematic diagram of the preparation device for hollow fiber membranes and flat membranes provided by the embodiments of the present invention.

[0025] Reference Signs:

[0026] 1. Material tank; 2. Cleaning liquid pool; 2a. Drain outlet; 3. Rewinding wheel; 4. Conveyor wheel group; 4a. Second tensioning wheel; 4b. Third guiding wheel; 5. First guiding wheel; 6. Unwinding wheel; 7. Feeding wheel; 8. Feeding part; 9. Feeding pipe; 9a. Main pipe; 9b. First branch pipe; 9c. Second branch pipe; 9c1. Second outlet; 10. Regulating valve; 11. Driving assembly; 12. First tensioning wheel; 13. Second guiding wheel; 14. First support; 15. Second support; 16. Liquid inlet pipe; 17. Second spray head; 18. Liquid inlet regulating valve; 19. Drain pipe; 20. Overflow tank; 21. Liquid outlet regulating valve; 22. First spray head. Detailed implementation manner

[0027] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0029] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0030] As Figure 1As shown in the figure, this embodiment provides a preparation device for hollow fiber membranes and flat membranes, which includes a hollow fiber membrane preparation component and a flat membrane preparation component. The two preparation components share a material tank 1, a cleaning liquid tank 2, and a winding wheel 3 arranged in sequence. A conveying wheel group 4 is arranged in the cleaning liquid tank 2. The hollow fiber membrane preparation component further includes a first nozzle 22 and a first guide wheel 5. The flat membrane preparation component further includes an unwinding wheel 6, a feeding wheel 7, and a feeding member 8. The preparation device for the hollow fiber membranes and flat membranes further includes a feeding pipe 9. The feeding pipe 9 includes an inlet, a first outlet, and a second outlet 9c1. The inlet is communicated with the discharge port of the material tank 1. A regulating valve 10 is arranged on the feeding pipe 9, and the regulating valve 10 enables the inlet to be selectively communicated with the first outlet or the second outlet 9c1. The first nozzle 22 is arranged at the first outlet, and the first guide wheel 5 is arranged between the first nozzle 22 and the conveying wheel group 4. The feeding wheel 7 is arranged between the unwinding wheel 6 and the conveying wheel group 4, and the feeding member 8 is arranged at the second outlet 9c1, and the discharge port of the feeding member 8 is arranged at an interval from the feeding wheel 7.

[0031] Figure 1 The dotted arrows in the figure show the flow direction of the fiber membrane filaments. When preparing the hollow fiber membrane, the regulating valve 10 enables the inlet and the first outlet of the feeding pipe 9 to be communicated, and at the same time, the inlet and the second outlet 9c1 are not communicated. The material in the material tank 1 is ejected from the first nozzle 22 at the first outlet of the feeding pipe 9 to form fiber membrane filaments. After passing through the first guide wheel 5 and the conveying wheel group 4, the fiber membrane filaments are wound onto the winding wheel 3, thereby preparing the nascent fibers. The conveying wheel group 4 is arranged in the cleaning liquid tank 2. When the fiber membrane filaments are conveyed by the conveying wheel group 4, they are cleaned and cooled by the cleaning liquid in the cleaning liquid tank 2. Before entering the cleaning liquid tank 2, the fiber membrane filaments are cooled by air. In this embodiment, the first guide wheel 5 is also arranged in the cleaning liquid tank 2. Obviously, in other embodiments, the first guide wheel 5 can also be arranged outside the cleaning liquid tank 2.

[0032] Continue to refer to Figure 1 , the solid arrows in the figure show the flow direction of the flat membrane. The unwinding wheel 6 is wound with an unfed flat membrane. When preparing the flat membrane, the unwinding wheel 6 releases the unfed flat membrane thereon, and the unfed flat membrane is conveyed to the feeding wheel 7. At the same time, the regulating valve 10 enables the inlet and the second outlet 9c1 of the feeding pipe 9 to be communicated, and the inlet and the first outlet are not communicated. The material in the material tank 1 flows to the feeding member 8 through the second outlet 9c1, and then is added to the unfed flat membrane on the feeding wheel 7 by the feeding member 8 to obtain the flat membrane. The flat membrane is then conveyed by the conveying wheel group 4 and finally wound onto the winding wheel 3. When the flat membrane is conveyed by the conveying wheel group 4, it is cooled and cleaned by the cleaning liquid in the cleaning liquid tank 2. Before entering the cleaning liquid tank 2, the flat membrane is cooled by air.

[0033] In this embodiment, the preparation devices for hollow fiber membranes and flat membranes share a material tank 1, a conveying wheel set 4, a cleaning liquid tank 2, and a winding wheel 3. The material flowing out of the material tank 1 is adjusted in its flow direction through a feed pipe 9 and a regulating valve 10 thereon, so as to be respectively used for manufacturing hollow fiber membranes and flat membranes. The first guide wheel 5 guides the fiber membrane filaments ejected from the first outlet to the conveying wheel set 4, and finally winds them onto the winding wheel 3. The feeding wheel 7 guides the flat membrane to the conveying wheel set 4, and finally winds it onto the winding wheel 3. The preparation device for hollow fiber membranes and flat membranes can not only prepare hollow fiber membranes but also prepare flat membranes. It has simple operation, small floor space, and low equipment cost, and can achieve large-scale and efficient production.

[0034] Optionally, the regulating valve 10 can be an electric valve to achieve automatic control, which is convenient to operate and has precise control. Of course, the regulating valve 10 can also be a manual valve, which is manually operated by an operator.

[0035] Optionally, the material tank 1 is closed. The inner cavity of the material tank 1 is communicated with a gas source, and a pressure gauge is arranged in the material tank 1. The pressure gauge is used to measure the pressure in the material tank 1. The feeding speed can be controlled by controlling the pressure in the material tank 1.

[0036] Optionally, the feed pipe 9 includes a main pipe 9a, a first branch pipe 9b, and a second branch pipe 9c. One end of the main pipe 9a is an inlet, and one ends of the first branch pipe 9b and the second branch pipe 9c are connected to the other end of the main pipe 9a through the regulating valve 10. The other end of the first branch pipe 9b is a first outlet, and the other end of the second branch pipe 9c is a second outlet 9c1; the length of the first branch pipe 9b is adjustable. By adjusting the length of the first branch pipe 9b, the distance between the first nozzle 22 and the liquid level of the cleaning liquid tank 2 is adjusted, so as to realize the air cooling time of the fiber membrane filaments, so as to meet the requirements of process control.

[0037] Optionally, the inlet of the feed pipe 9 and the material tank 1 are detachably connected, and the first outlet of the feed pipe 9 and the first nozzle 22 are detachably connected, which is convenient for disassembling and cleaning the feed pipe 9.

[0038] Exemplarily, the first branch pipe 9b includes a plurality of sleeves, and the plurality of sleeves are sleeved in sequence. The length of the first branch pipe 9b can be adjusted by selecting the number of sleeves. Alternatively, the length of the first branch pipe 9b can be adjusted by adjusting the sleeved length of two adjacent sleeves.

[0039] Optionally, the conveying wheel set 4 includes a second tensioning wheel 4a and a plurality of third guiding wheels 4b. The second tensioning wheel 4a is used to tension the fiber membrane filaments and the flat membrane to ensure the smooth flow of the fiber membrane filaments and the flat membrane. The plurality of guiding wheels are used to adjust the flow direction of the fiber membrane filaments and the flat membrane. In this embodiment, three third guiding wheels 4b are provided, and all three guiding wheels are arranged in the cleaning liquid tank 2. In other embodiments, the number and position of the third guiding wheels 4b can be adjusted according to specific situations.

[0040] Optionally, the preparation device for the hollow fiber membrane and the flat membrane further includes a driving assembly 11, and the driving assembly 11 is used to drive the winding wheel 3 to rotate. That is to say, the driving force of the transmission comes from the winding wheel 3 connected with the driving assembly 11, which is convenient for the arrangement of the conveying wheel set 4, the first guiding wheel 5, the unwinding wheel 6 and the feeding wheel 7.

[0041] In this embodiment, the driving assembly 11 includes a motor and a transmission. The output end of the motor is connected to the winding wheel 3 through the transmission. The rotation speed of the winding wheel 3 is adjusted through the transmission, so that the conveying speed of the hollow fiber membrane and the flat membrane can be adjusted, and further the residence time of the hollow fiber membrane and the flat membrane in the air and the cooling and cleaning time in the cleaning liquid tank 2 can be adjusted to meet the requirements of process control.

[0042] The flat membrane preparation assembly further includes a first tensioning wheel 12 and a second guiding wheel 13. The first tensioning wheel 12 is arranged between the unwinding wheel 6 and the feeding wheel 7, and the second guiding wheel 13 is arranged between the first tensioning wheel 12 and the feeding wheel 7. The first tensioning wheel 12 is used to tension the unfed flat membrane released by the unwinding. The width of the flat membrane is relatively large. By tensioning the flat membrane, it is ensured that the flat membrane flows smoothly to the feeding wheel 7 to avoid wrinkles on the flat membrane. In this embodiment, the first tensioning wheel 12 is arranged above the flat membrane, and the flat membrane is pressed by its partial gravity to tension the flat membrane. The second guiding wheel 13 is used to adjust the angle between the flat membrane and the feeding wheel 7 so that the flat membrane can flow smoothly to the feeding wheel 7.

[0043] Optionally, the flat membrane preparation assembly further includes a first bracket 14 and a second bracket 15. The second bracket 15 is rotatably arranged on the first bracket 14, and the feeding member 8 is arranged on the second bracket 15. The second bracket 15 drives the feeding member 8 to rotate relative to the first bracket 14 together, so that the distance between the discharge port of the feeding member 8 and the liquid level of the cleaning liquid tank 2 can be adjusted, thereby adjusting the cooling time of the flat membrane in the air to achieve process control. Exemplarily, the flat membrane preparation assembly further includes a motor, and the motor drives the second bracket 15 to rotate relative to the first bracket 14.

[0044] Furthermore, the feeding member 8 can move radially relative to the second bracket 15 along the feeding wheel 7. It can be understood that the gap between the discharging port of the feeding member 8 and the feeding wheel 7 is the thickness of the flat membrane. By moving the feeding member 8 radially along the feeding wheel 7, the feeding member 8 is made to approach or move away from the feeding wheel 7 to adjust the gap between the two, thereby realizing the adjustment of the thickness of the flat membrane and achieving the control of the process.

[0045] Exemplarily, a first connection hole is provided on the second bracket 15, and a plurality of second connection holes are provided on the feeding member 8. The plurality of second connection holes are distributed at intervals along the radial direction of the feeding wheel 7 on the feeding member 8. A bolt passes through any one of the second connection holes and is threadedly connected to the first connection hole, thereby realizing the radial movement of the feeding member 8 along the feeding wheel 7.

[0046] The preparation device for the hollow fiber membrane and the flat membrane further includes a liquid inlet pipe 16 and a second spray head 17. The second spray head 17 is arranged at the liquid outlet of the liquid inlet pipe 16, and the second spray head 17 faces the winding wheel 3. The winding wheel 3 is located above the cleaning liquid pool 2. One end of the liquid inlet pipe 16 away from the second spray head 17 is connected to the cleaning liquid tank. The cleaning liquid in the cleaning liquid tank flows through the liquid inlet pipe 16 to the second spray head 17, and the second spray head 17 sprays the cleaning liquid onto the winding wheel 3 to clean the fiber membrane filaments or the flat membrane on the winding wheel 3. Then, the cleaning liquid falls from the winding wheel 3 into the cleaning liquid pool 2. The fiber membrane filaments and the flat membrane are preliminarily cleaned in the cleaning liquid pool 2 and are secondarily cleaned on the winding wheel 3.

[0047] One end of the liquid inlet pipe 16 connected to the cleaning liquid tank is provided with a liquid inlet regulating valve 18. The liquid inlet regulating valve 18 is used to conduct or cut off the liquid inlet pipe 16 and the cleaning liquid tank. The liquid inlet regulating valve 18 can be an electric valve or a manual valve.

[0048] Optionally, a liquid discharge port 2a is provided at the bottom of the cleaning liquid pool 2. A liquid discharge pipe 19 is provided at the liquid discharge port 2a. An overflow tank 20 is arranged in the cleaning liquid pool 2, and the liquid discharge pipe 19 is also communicated with the overflow tank 20. When the flat membrane or the hollow fiber membrane is prepared, the cleaning liquid in the cleaning liquid pool 2 is discharged through the liquid discharge port 2a and the liquid discharge pipe 19. A liquid outlet regulating valve 21 is arranged on the liquid discharge pipe 19. The liquid inlet regulating valve 18 is used to conduct or cut off the liquid discharge pipe 19. The liquid inlet regulating valve 18 can be an electric valve or a manual valve. The overflow tank 20 is used to control the liquid level height of the cleaning liquid pool 2. The cleaning liquid in the overflow tank 20 is also discharged through the liquid discharge pipe 19.

[0049] Note that the above is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A preparation device for hollow fiber membranes and flat membranes, characterized in that It includes a hollow fiber membrane preparation component and a flat membrane preparation component. The hollow fiber membrane preparation component and the flat membrane preparation component share a material tank (1), a cleaning liquid tank (2), and a winding wheel (3) arranged in sequence. A conveying wheel group (4) is arranged in the cleaning liquid tank (2). The preparation device for the hollow fiber membrane and the flat membrane can not only prepare the hollow fiber membrane but also prepare the flat membrane; The hollow fiber membrane preparation component further includes a first spray head (22) and a first guide wheel (5); The flat membrane preparation component further includes an unwinding wheel (6), a feeding wheel (7), and a feeding member (8); The preparation device for the hollow fiber membrane and the flat membrane further includes a feeding pipe (9). The feeding pipe (9) includes an inlet, a first outlet, and a second outlet (9c1). The inlet is communicated with the discharge port of the material tank (1). A regulating valve (10) is arranged on the feeding pipe (9). The regulating valve (10) selectively communicates the inlet with the first outlet or the second outlet (9c1); The first spray head (22) is arranged at the first outlet, and the first guide wheel (5) is arranged between the first spray head (22) and the conveying wheel group (4); The feeding wheel (7) is arranged between the unwinding wheel (6) and the conveying wheel group (4). The feeding member (8) is arranged at the second outlet (9c1), and the discharge port of the feeding member (8) is arranged at an interval from the feeding wheel (7).

2. The preparation apparatus for the hollow fiber membrane and the flat membrane according to claim 1, characterized in that, It further includes a driving component (11). The driving component (11) is used to drive the winding wheel (3) to rotate.

3. The manufacturing apparatus for the hollow fiber membrane and the flat membrane according to claim 2, characterized in that, The driving component (11) includes a motor and a transmission. The output end of the motor is connected to the winding wheel (3) through the transmission.

4. The manufacturing apparatus for the hollow fiber membrane and the flat membrane according to claim 1, characterized in that, The flat membrane preparation component further includes a first tensioning wheel (12) and a second guide wheel (13). The first tensioning wheel (12) is arranged between the unwinding wheel (6) and the feeding wheel (7), and the second guide wheel (13) is arranged between the first tensioning wheel (12) and the feeding wheel (7).

5. The preparation apparatus for the hollow fiber membrane and the flat membrane according to claim 1, characterized in that, The flat membrane preparation component further includes a first support (14) and a second support (15). The second support (15) is rotatably arranged on the first support (14). The feeding member (8) is arranged on the second support (15).

6. The manufacturing apparatus for the hollow fiber membrane and the flat membrane according to claim 5, characterized in that, The feeding member (8) can move radially along the feeding wheel (7) relative to the second support (15).

7. The production apparatus for the hollow fiber membrane and the flat membrane according to any one of claims 1-6, characterized in that, The feeding pipe (9) includes a main pipe (9a), a first branch pipe (9b), and a second branch pipe (9c). One end of the main pipe (9a) is the inlet. One ends of the first branch pipe (9b) and the second branch pipe (9c) are connected to the other end of the main pipe (9a) through the regulating valve (10). The other end of the first branch pipe (9b) is the first outlet, and the other end of the second branch pipe (9c) is the second outlet (9c1); the length of the first branch pipe (9b) is adjustable.

8. The preparation apparatus for the hollow fiber membrane and the flat membrane according to any one of claims 1-6, characterized in that, The conveying wheel group (4) includes a second tensioning wheel (4a) and a plurality of third guide wheels (4b).

9. The production device of the hollow fiber membrane and the flat membrane according to any one of claims 1-6, characterized in that, It further includes a liquid inlet pipe (16) and a second spray head (17). The second spray head (17) is arranged at the liquid outlet of the liquid inlet pipe (16). The second spray head (17) faces the winding wheel (3), and the winding wheel (3) is located above the cleaning liquid pool (2).

10. The preparation device for the hollow fiber membrane and the flat membrane according to any one of claims 1-6, characterized in that, A liquid discharge port (2a) is provided at the bottom of the cleaning liquid pool (2). A liquid discharge pipe (19) is provided at the liquid discharge port (2a). An overflow tank (20) is arranged in the cleaning liquid pool (2), and the liquid discharge pipe (19) is also communicated with the overflow tank (20).

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