Hollow fiber membrane silk rinsing device

Abstract

The utility model relates to the technical field of hollow fiber membrane yarn production, and aims to solve the technical problem of poor rinsing effect. In order to solve the technical problem, the utility model provides the hollow fiber membrane silk rinsing device. The rinsing device is characterized in that a rinsing tank is provided with N stages of rinsing chambers which are connected in sequence, and rinsing liquid is arranged in the rinsing chambers; the rinsing liquid in the previous rinsing chamber flows into the next rinsing chamber; the first-stage rinsing chamber is provided with a spraying part for providing rinsing liquid and flushing the hollow fiber membrane filaments, and the spraying part is higher than the liquid level of the rinsing liquid in the first-stage rinsing chamber; a liquid outlet is formed in the Nth-stage rinsing chamber; the partition plate is arranged in the first-stage rinsing chamber, and water flow of the spraying component is sprayed to the partition plate; the hollow fiber membrane filaments enter the first-stage rinsing chamber and then are located between the partition plate and the spraying component; the membrane filament transmission assembly is used for driving the hollow fiber membrane filaments to move. The rinsing device improves the rinsing effect.

Description

Technical Field

[0001] This utility model relates to the field of hollow fiber membrane production technology, and in particular to a hollow fiber membrane rinsing device. Background Technology

[0002] Hollow fiber membranes are widely used in various fields such as medicine, food, environmental protection, and daily life due to their unique advantages. In the process of preparing hollow fiber membranes, the feed solution and core solution (or inner liner tube) are generally injected into the spinning nozzle at the same time, and the membrane is extruded and formed through the spinning nozzle. The resulting membrane is then cured in a coagulation bath, rinsed, and finally wound up and collected.

[0003] Hollow fiber membrane fibers can acquire a large amount of solvent or accumulate various impurities and contaminants during the manufacturing process. These impurities include suspended solids, colloidal particles, organic matter, and microorganisms. These impurities can be adsorbed and precipitated on the membrane surface or within the membrane pores, causing the pores to become smaller or clogged, thus affecting the membrane's water permeability and separation capacity. Therefore, rinsing is necessary to remove these solvents, impurities, and contaminants from the membrane surface to maintain its good filtration performance and extend its service life.

[0004] Existing rinsing devices include a rinsing tank containing a rinsing solution, in which the hollow fiber membrane fibers are briefly immersed to achieve rinsing. However, the rinsing effect is poor, and the membranes are not thoroughly rinsed. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the problem of poor rinsing effect in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model provides a hollow fiber membrane rinsing device, comprising:

[0007] The rinsing tank has N sequentially connected rinsing chambers, each containing rinsing liquid. The rinsing liquid overflows from one rinsing chamber into the next, and the flow direction of the rinsing liquid is opposite to the movement direction of the hollow fiber membrane filaments. The first-stage rinsing chamber is equipped with a spray component to provide rinsing liquid and rinse the hollow fiber membrane filaments; the spray component is above the liquid level in the first-stage rinsing chamber. The Nth-stage rinsing chamber has a drain outlet.

[0008] A partition is disposed in the first-stage rinsing chamber, and the top of the partition is higher than the liquid level of the rinsing liquid in the first-stage rinsing chamber. The water flow from the spraying component is sprayed toward the partition. The hollow fiber membrane filaments are located between the partition and the spraying component after entering the first-stage rinsing chamber.

[0009] A membrane fiber transport assembly is used to drive the hollow fiber membrane fiber to move.

[0010] In one embodiment of this utility model, the N-stage rinsing chambers are respectively provided with the partitions; a water inlet channel is formed between the side wall of the water inlet side of the rinsing chamber and the partitions.

[0011] In one embodiment of this utility model, the membrane fiber transport assembly includes a plurality of first power wheels, a plurality of pressing wheels, and a plurality of second power wheels; the first power wheels are rotatably connected to the top of the rinsing chamber to pull the hollow fiber membrane fiber into the rinsing chamber; the pressing wheels are rotatably connected to the rinsing chamber to pull the hollow fiber membrane fiber below the liquid surface of the rinsing chamber; the second power wheels are rotatably connected to the Nth stage rinsing chamber to pull the hollow fiber membrane fiber out of the rinsing chamber.

[0012] In one embodiment of the present invention, the membrane fiber transport assembly further includes a drive wheel rotatably connected outside the rinsing tank.

[0013] In one embodiment of this utility model, at least two pressing rollers are provided in the rinsing chamber.

[0014] In one embodiment of this utility model, the application further includes a lifting assembly connected in the rinsing tank to drive the pressing wheel to move up and down; the lifting assembly is arranged in a one-to-one correspondence with the pressing wheel; the lifting assembly includes a lifting frame and a limiting and fixing part; the lifting frame is rotatably connected to the pressing wheel and slidably connected to the rinsing tank, and the partition is connected to the lifting frame; the limiting and fixing part is connected to the top of the lifting frame and the limiting and fixing part is connected to the top of the rinsing tank.

[0015] In one embodiment of the present invention, the limiting and fixing part includes two limiting grooves and a limiting plate; the two limiting grooves are disposed on the top of both sides of the rinsing tank; the limiting plate is connected to the lifting frame and its two ends are respectively located in the two limiting grooves.

[0016] In one embodiment of the present invention, the limiting and fixing part further includes two fixing members and two fixing grooves; the fixing groove is disposed at the top of the rinsing tank and communicates with the limiting groove; the fixing member is rotatably connected in the fixing groove, and one end of the fixing member is rotatably abutted against the top of the limiting plate.

[0017] In one embodiment of the present invention, the lifting assembly further includes a fine-tuning power unit connected between the lifting frame and the limiting and fixing part to finely adjust the height of the lifting frame.

[0018] In one embodiment of this utility model, the fine-tuning power unit includes a lead screw and a lead screw nut; one end of the lead screw is movably connected to the limiting and fixing part, and the other end is engaged with the lead screw nut; the lead screw nut is connected to the lifting frame; the lifting assembly also includes a guide groove, and the lifting frame slides up and down in the guide groove.

[0019] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0020] The hollow fiber membrane rinsing device of this invention features an N-stage rinsing tank. This design allows for a longer rinsing time and, as new rinsing solution is supplied by the spraying component, it is sequentially mixed into each of the N stages. This ensures the new rinsing solution first enters the clearer chambers for mixing before overflowing into the more turbid chambers. This increases the utilization rate of the rinsing solution while maintaining the same supply, thus improving rinsing effectiveness and conserving rinsing solution. Furthermore, before the hollow fiber membrane fibers are removed from the rinsing tank after rinsing, the rinsing solution sprayed by the spraying component hits the fibers, further rinsing them after they leave the liquid surface of the first rinsing chamber, enhancing the rinsing effect. Attached Figure Description

[0021] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of a hollow fiber membrane rinsing device according to a preferred embodiment of the present invention;

[0023] Figure 2 yes Figure 1 Side view of a hollow fiber membrane rinsing device;

[0024] Figure 3 yes Figure 2 AA section view;

[0025] Figure 4 yes Figure 1 A top view of a hollow fiber membrane rinsing device;

[0026] Figure 5 yes Figure 4 Enlarged view of point B;

[0027] Figure 6 yes Figure 4 CC section view;

[0028] Figure 7 yes Figure 6 Enlarged view of point D;

[0029] Explanation of reference numerals in the accompanying drawings: 100, rinsing tank; 110, rinsing chamber; 120, spraying component; 130, drain outlet;

[0030] 200. Hollow fiber membrane filaments;

[0031] 300. Partition; 310. Passageway;

[0032] 400. Membrane fiber transport assembly; 410. First drive wheel; 420. Pressing wheel; 430. Second drive wheel; 440. Drive wheel;

[0033] 500. Lifting assembly; 510. Lifting frame; 520. Limiting and fixing part; 521. Limiting groove; 522. Limiting plate; 523. Fixing component; 524. Fixing groove; 525. Fixing pin; 526. Connecting hole; 527. Groove body; 530. Fine-tuning power unit; 531. Lead screw; 532. Lead screw nut; 540. Guide groove. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0035] Reference Figures 1-7 As shown, this utility model embodiment provides a hollow fiber membrane rinsing device, comprising:

[0036] The rinsing tank 100 has N sequentially connected rinsing chambers 110, each containing rinsing liquid. The rinsing liquid overflows from one rinsing chamber 110 into the next, and the flow direction of the rinsing liquid is opposite to the movement direction of the hollow fiber membrane filaments 200. A spray component 120 is located at the top of the first-stage rinsing chamber 110 to provide rinsing liquid and rinse the hollow fiber membrane filaments 200. The spray component 120 is positioned above the liquid level in the first-stage rinsing chamber 110. A drain port 130 is located on the Nth-stage rinsing chamber 110.

[0037] A partition 300 is disposed in the first-stage rinsing chamber 110, and the top of the partition 300 is higher than the liquid level of the rinsing liquid in the first-stage rinsing chamber 110. The water flow from the spray component 120 is sprayed toward the partition 300. The hollow fiber membrane filament 200 enters the first-stage rinsing chamber 110 and is located between the partition 300 and the spray component 120.

[0038] The membrane fiber transport assembly 400 is used to drive the hollow fiber membrane fiber 200 to move.

[0039] It should be noted that the rinsing solution becomes increasingly dirty from the first-stage rinsing chamber 110 to the Nth-stage rinsing chamber 110.

[0040] Specifically, the rinsing tank 100 of this embodiment is provided with N-stage rinsing chambers 110. On the one hand, the rinsing time is longer; on the other hand, after the spraying component 120 supplies new rinsing solution, it is sequentially mixed into the N-stage rinsing chambers 110. In this way, the new rinsing solution first enters the relatively clear rinsing chamber 110 for mixing, and then overflows sequentially into the relatively turbid rinsing chambers 110. This improves the utilization rate of the rinsing solution, enhances the rinsing effect, and saves rinsing solution under the same supply of new rinsing solution. In addition, before the hollow fiber membrane filaments 200 are pulled out of the rinsing tank 100 after rinsing, the rinsing solution sprayed by the spraying component 120 hits the hollow fiber membrane filaments 200, thereby further rinsing the hollow fiber membrane filaments 200 that have left the liquid surface of the first-stage rinsing chamber 110, improving the rinsing effect.

[0041] If the rinsing solution cannot be circulated effectively, impurities at the bottom will accumulate, affecting the rinsing effect. After the hollow fiber membrane filaments 200 are rinsed in the rinsing chamber 110, the impurities will settle at the bottom of the rinsing solution. When new rinsing solution enters the rinsing chamber 110 from the top, it overflows into the next rinsing chamber 110 before mixing with the rinsing solution at the bottom. Therefore, it can only mix with the original rinsing solution at the top, preventing the impurities at the bottom from being carried away and affecting the rinsing effect. To solve this problem, in this embodiment, each of the N-stage rinsing chambers 110 is further provided with a partition 300, and the top of the partition 300 in each rinsing chamber 110 is higher than the liquid level of the rinsing solution in that chamber. A water inlet channel 310 is formed between the side wall of the water inlet side of the rinsing chamber 110 and the partition 300.

[0042] Specifically, in this embodiment, the channel 310 allows new rinsing solution to directly enter the bottom of the rinsing chamber 110, thereby enabling the rinsing solution in the rinsing chamber 110 to be fully mixed and then flow to the next rinsing chamber 110, until it flows out of the rinsing tank 100. Therefore, this embodiment can improve the circulation of the rinsing solution and enhance the rinsing effect.

[0043] Furthermore, the membrane fiber transport assembly 400 includes multiple first drive rollers 410, multiple pressing rollers 420, and multiple second drive rollers 430. The first drive rollers 410 are rotatably connected to the top of the rinsing chamber 110 to pull the hollow fiber membrane fiber 200 into the rinsing chamber 110. The pressing rollers 420 are rotatably connected in the rinsing chamber 110 to pull the hollow fiber membrane fiber 200 below the liquid surface in the rinsing chamber 110. The second drive rollers 430 are rotatably connected in the Nth stage rinsing chamber 110 to carry the hollow fiber membrane fiber 200 out of the rinsing chamber 110.

[0044] Specifically, in this embodiment, the hollow fiber membrane filament 200 is transported in the N-stage rinsing chamber 110 through the first power wheel 410, the pressing wheel 420, and the second power wheel 430.

[0045] Furthermore, the membrane fiber transport assembly 400 also includes a drive wheel 440 rotatably connected to the rinsing tank 100.

[0046] Specifically, the drive wheel 440 can transport the hollow fiber membrane filaments 200 from the rinsing tank 100 to the next process.

[0047] Furthermore, the rinsing chamber 110 is provided with at least two pressing rollers 420.

[0048] Specifically, in this embodiment, each rinsing chamber 110 is provided with at least two pressing rollers 420, which enables the hollow fiber membrane filaments 200 to be completely immersed in the rinsing solution of the rinsing chamber 110, thereby increasing the immersion time of the hollow fiber membrane filaments 200 in the rinsing solution and further improving the rinsing effect.

[0049] In the above embodiments, the rinsing tank 100 is provided with N sequentially connected rinsing chambers 110. This makes it difficult to lay the hollow fiber membrane filaments 200 within the limited space of the rinsing chambers 110. Therefore, to facilitate the laying of the hollow fiber membrane filaments 200, this application further includes a lifting assembly 500 connected to the rinsing tank 100 to drive the pressing roller 420 up and down. The lifting assembly 500 and the pressing roller 420 are arranged in a one-to-one correspondence. The lifting assembly 500 includes a lifting frame 510 and a limiting and fixing part 520. The lifting frame 510 is rotatably connected to the pressing roller 420 and slidably connected to the rinsing tank 100. The partition 300 is connected to the lifting frame 510. The limiting and fixing part 520 is connected to the top of the lifting frame 510 and to the top of the rinsing tank 100. In some embodiments, the pressing wheel 420 is connected to the bottom of the lifting frame 510, and the limiting and fixing part 520 is connected to the top of the lifting frame 510.

[0050] Specifically, in this embodiment, the lifting frame 510 can be raised and lowered in the rinsing tank 100 to adjust the height of the pressing roller 420. After the pressing roller 420 is adjusted to the target position, it is fixed relative to the rinsing tank 100 by the limiting and fixing part 520. Thus, this embodiment can realize the height adjustment of the pressing roller 420, and the pressing roller 420 will not move up and down during the rinsing process, so as to lay the hollow fiber membrane filaments 200.

[0051] Furthermore, the limiting and fixing part 520 includes two limiting grooves 521 and a limiting plate 522; the two limiting grooves 521 are located at the top of both sides of the rinsing tank 100; the limiting plate 522 is connected to the lifting frame 510, and its two ends are respectively located in the two limiting grooves 521.

[0052] Specifically, in this embodiment, after the lifting frame 510 descends to the target position, the limiting groove 521 limits the limiting plate 522, ensuring the relative fixation of the lifting frame 510 and the rinsing tank 100 during the rinsing process. In addition, the cooperation between the limiting groove 521 and the limiting plate 522 enables preliminary control of the descent height of the lifting frame 510, facilitating rapid sliding to the approximate target position.

[0053] Furthermore, the limiting and fixing part 520 also includes two fixing members 523 and two fixing grooves 524; the fixing grooves 524 are located at the top of the rinsing tank 100 and are connected to the limiting grooves 521; the fixing members 523 are rotatably connected in the fixing grooves 524 and one end of the fixing members 523 is rotatably abutted against the top of the limiting plate 522.

[0054] Specifically, in this embodiment, the fixing member 523 is rotatably connected to the fixing groove 524, so that when the lifting frame 510 needs to be moved up and down, the fixing member 523 is rotated into the fixing groove 524. Then, when the lifting frame 510 is raised and lowered to the target position, the limiting plate 522 is rotated to the top of the limiting plate 522, thereby restricting the pressing wheel 420 from moving upward during the rinsing process. This embodiment has a simple structure and is easy to operate.

[0055] Furthermore, the limiting and fixing part 520 also includes two fixing pins 525, which are correspondingly set with the fixing member 523; the fixing member 523 is provided with a connecting hole 526, and the top of the limiting plate 522 is provided with a groove 527; the fixing pin 525 passes through the connecting hole 526 and is locked in the groove 527.

[0056] Specifically, in this embodiment, the rinsing tank 100 and the limiting plate 522 are further fixed by the fixing pin 525 to prevent the limiting plate 522 from swaying back and forth and left and right in the limiting groove 521 during the rinsing process.

[0057] Furthermore, the lifting assembly 500 also includes a fine-tuning power unit 530, which is connected between the lifting frame 510 and the limiting and fixing part 520 to finely adjust the height of the lifting frame 510.

[0058] Specifically, this embodiment allows for precise adjustment of the height of the pressure roller 420 after it has descended to its initial position via the fine-tuning power unit 530. This allows for rapid adjustment of the target position followed by fine-tuning of the pressure roller 420's height using the power unit 530. Therefore, this embodiment achieves both rapid adjustment and improved accuracy in adjusting the height of the pressure roller 420.

[0059] Furthermore, the fine-tuning power unit 530 includes a lead screw 531 and a lead screw nut 532; one end of the lead screw 531 is movably connected to the limiting and fixing part 520 via a bearing, and the other end is engaged with the lead screw nut 532; the lead screw nut 532 is connected to the lifting frame 510; the lifting assembly 500 also includes a guide groove 540, in which the lifting frame 510 slides up and down. Specifically, in this embodiment, by rotating the lead screw 531, the lifting frame 510 is stably and synchronously raised and lowered with the lead screw nut 532 under the constraint of the guide groove 540, resulting in stable and reliable operation. On the other hand, the guide groove 540 guides the up and down movement of the lifting frame 510.

[0060] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A hollow fiber membrane filament rinsing apparatus, characterized by: include: The rinsing tank is provided with N sequentially connected rinsing chambers, and each rinsing chamber contains rinsing liquid; The rinsing solution in the previous rinsing chamber overflows into the next rinsing chamber, and the flow direction of the rinsing solution is opposite to the movement direction of the hollow fiber membrane filaments; the first-stage rinsing chamber is equipped with a spray component to provide rinsing solution and rinse the hollow fiber membrane filaments, and the spray component is higher than the liquid level of the rinsing solution in the first-stage rinsing chamber; the Nth-stage rinsing chamber is equipped with a drain port; A partition is provided in the first-stage rinsing chamber, and the top of the partition is higher than the liquid level of the rinsing liquid in the first-stage rinsing chamber. The water flow of the spraying component is sprayed toward the partition. After entering the first-stage rinsing chamber, the hollow fiber membrane filament is located between the partition and the spraying component; A membrane fiber transport assembly is used to drive the hollow fiber membrane fiber to move.

2. The hollow fiber membrane rinsing device according to claim 1, characterized in that: The N-level rinsing chambers are each equipped with the partitions; a water inlet channel is formed between the side wall of the water inlet side of the rinsing chamber and the partitions.

3. The hollow fiber membrane filament rinsing apparatus according to claim 1, characterized by: The membrane fiber transport assembly includes multiple first power wheels, multiple pressing wheels, and multiple second power wheels; the first power wheels are rotatably connected to the top of the rinsing chamber to pull the hollow fiber membrane fiber into the rinsing chamber; The pressing wheel is rotatably connected in the rinsing chamber to pull the hollow fiber membrane filament below the liquid surface in the rinsing chamber; the second power wheel is rotatably connected in the Nth stage rinsing chamber to pull the hollow fiber membrane filament out of the rinsing chamber.

4. The hollow fiber membrane filament rinsing apparatus according to claim 3, characterized by: The membrane fiber transport assembly also includes a drive wheel that is rotatably connected outside the rinsing tank.

5. The hollow fiber membrane filament rinsing apparatus according to claim 3, characterized by: The rinsing chamber is equipped with at least two of the pressing rollers.

6. The hollow fiber membrane filament rinsing apparatus according to claim 3, characterized by: It also includes a lifting assembly connected to the rinsing tank to drive the pressing roller to move up and down; the lifting assembly is arranged one-to-one with the pressing roller; the lifting assembly includes a lifting frame and a limiting and fixing part; the lifting frame is rotatably connected to the pressing roller and slidably connected to the rinsing tank, and the partition is connected to the lifting frame; the limiting and fixing part is connected to the top of the lifting frame and the limiting and fixing part is connected to the top of the rinsing tank.

7. The hollow fiber membrane filament rinsing device of claim 6, wherein: The limiting and fixing part includes two limiting grooves and a limiting plate; the two limiting grooves are located on the top of both sides of the rinsing tank; the limiting plate is connected to the lifting frame, and its two ends are respectively located in the two limiting grooves.

8. The hollow fiber membrane filament rinsing device of claim 7, wherein: The limiting and fixing part also includes two fixing members and two fixing grooves; the fixing groove is located at the top of the rinsing tank and is connected to the limiting groove; the fixing member is rotatably connected in the fixing groove, and one end of the fixing member is rotatably abutted against the top of the limiting plate.

9. The hollow fiber membrane filament rinsing device of claim 8, wherein: The lifting assembly also includes a fine-tuning power unit, which is connected between the lifting frame and the limiting and fixing part to fine-tune the height of the lifting frame.

10. The hollow fiber membrane filament rinsing apparatus of claim 9, wherein: The fine-tuning power unit includes a lead screw and a lead screw nut; one end of the lead screw is movably connected to the limiting and fixing part, and the other end is engaged with the lead screw nut; the lead screw nut is connected to the lifting frame; the lifting assembly also includes a guide groove, in which the lifting frame slides up and down.

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