Anti-fouling and anti-blocking device for reverse osmosis membrane production

Abstract

The utility model relates to the technical field of reverse osmosis membrane production, in particular to an anti-fouling device for reverse osmosis membrane production, which comprises a box body and a feeding pump arranged in the box body, a feeding pipe is fixedly mounted on the feeding pump, one end of the feeding pipe is fixedly connected with a thread bushing, a filter screen is fixedly arranged in the feeding pipe, and the other end of the feeding pipe is fixedly connected with the thread bushing. A fixed shaft is rotationally connected to the filter screen, a sliding rod is connected to the fixed shaft through a first spring, a scraping strip and an arc-shaped block are fixedly connected to the sliding rod, and a rectangular opening for the scraping strip to move back and forth is formed in the fixed shaft; and a sealing plate is arranged on the feeding pipe in a sliding manner. The anti-fouling and anti-blocking device is good in anti-fouling and anti-blocking effect, impurities mixed in materials can be well filtered out for a long time, and the materials containing the impurities are prevented from being directly put into use, so that the defective rate is reduced, subsequent use of the materials is facilitated, and production and processing of reverse osmosis membranes are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of reverse osmosis membrane production technology, and in particular to an anti-fouling device for reverse osmosis membrane production. Background Technology

[0002] With the continuous development of society and the continuous progress of science and technology, the technology related to the production of reverse osmosis membranes is also constantly improving. In the process of reverse osmosis membrane production and processing, it is necessary to coat the reverse osmosis membrane in order to improve the controllability of the desalination layer structure during the preparation of the reverse osmosis membrane and improve the performance of the reverse osmosis membrane.

[0003] The patent document with publication number "CN218700319U" discloses a coating feeding device for reverse osmosis membrane production, including a box body, a first partition plate fixedly connected to the inner top wall of the box body, and a second partition plate fixedly connected to the lower end of the first partition plate.

[0004] While the aforementioned patent documents have solved the problem of inconsistent material proportions caused by the inability to precisely adjust the proportions during the batching process, they have the following drawbacks: when the feed pump extracts and transports the material, it cannot filter out impurities mixed in with the material. If the material containing impurities is used directly in subsequent applications, it is easy to increase the defect rate and is not conducive to the subsequent use of the material. Utility Model Content

[0005] The purpose of this utility model is to solve the following shortcomings in the prior art: when the feed pump extracts and transports materials, it cannot filter out the impurities mixed in the materials. When materials containing impurities are directly put into use, it is easy to increase the defect rate and is not conducive to the subsequent use of materials. Therefore, an anti-fouling device for reverse osmosis membrane production is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A fouling prevention device for reverse osmosis membrane production includes a housing and a feed pump disposed inside the housing. A feed pipe is fixedly installed on the feed pump. A threaded sleeve is fixedly connected to one end of the feed pipe. A filter screen is fixedly disposed inside the feed pipe. A fixed shaft is rotatably connected to the filter screen. A slide rod is connected to the fixed shaft through a first spring. A scraper and an arc-shaped block are fixedly connected to the slide rod. A rectangular opening is provided on the fixed shaft for the scraper to move back and forth.

[0008] A sealing plate is slidably disposed on the feeding pipe, and an opening is provided at the bottom of the feeding pipe. The sealing plate is connected to a cover plate with a right-angled trapezoidal cross-section by a bending rod. A rotating assembly is provided on the feeding pipe. The rotating assembly includes a rotating shaft rotatably mounted on the feeding pipe. A first bevel gear is fixedly connected to the rotating shaft, and a second bevel gear is fixedly connected to one end of the fixed shaft.

[0009] Preferably, the cross-section of the arc-shaped block is semi-circular, and the surface of the arc-shaped block near the sealing plate is set as an arc surface.

[0010] Preferably, a plurality of rotating plates are fixedly connected to the fixed shaft, and the plurality of rotating plates are all disposed on the same side of the filter screen.

[0011] Preferably, the feed pipe has a circular hole, and a sealing cap is threaded into the circular hole.

[0012] Preferably, the bent rod has multiple threaded grooves arranged at equal intervals, and a lug is fixedly connected to one side surface of the feed tube. The lug is connected to the corresponding threaded groove by bolts.

[0013] Preferably, a servo motor is fixedly installed on the feeding pipe, and the drive end of the servo motor is fixedly connected to the rotating shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When the feed pump extracts material, the filter screen removes impurities from the material. A large amount of clean water is added to the feed pipe through the round hole. Simultaneously, the servo motor drives the rotating shaft to rotate. During the rotation of the first bevel gear, it meshes with the second bevel gear, causing the fixed shaft to rotate. As the scraper moves along with the fixed shaft, it scrapes away impurities from the filter screen surface. The clean water provides a secondary cleaning of the filter screen, preventing it from becoming contaminated and clogged. This provides good anti-clogging performance and allows for long-term effective filtration of impurities from the material, preventing the direct use of materials containing impurities, reducing the defect rate, and facilitating subsequent material use and the production and processing of reverse osmosis membranes. Attached Figure Description

[0016] Figure 1 This is a front structural diagram of an anti-fouling device for reverse osmosis membrane production proposed in this utility model;

[0017] Figure 2 This is a side view of the feeding tube and the bending rod in this utility model.

[0018] Figure 3 This is a partial front view of the internal structure of the feed tube in this utility model.

[0019] Figure 4 This is a front structural diagram of the fixed shaft and filter screen in this utility model.

[0020] In the diagram: 1. Box body, 2. Feed pipe, 3. Sealing plate, 4. Threaded sleeve, 5. Cover plate, 6. Bending rod, 7. Filter screen, 8. Sealing cover, 9. Ear plate, 10. Bolt, 11. First bevel gear, 12. Rotating shaft, 13. Fixed shaft, 14. Arc block, 15. Rotating plate, 16. Second bevel gear, 17. First spring, 18. Slide rod, 19. Scraper. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0023] Reference Figures 1-4 A device for preventing fouling in reverse osmosis membrane production includes a housing 1 and a feed pump installed inside the housing 1. A feed pipe 2 is fixedly installed on the feed pump. A threaded sleeve 4 is fixedly connected to one end of the feed pipe 2. A filter screen 7 is fixedly installed inside the feed pipe 2. A fixed shaft 13 is rotatably connected to the filter screen 7. A slide rod 18 is connected to the fixed shaft 13 via a first spring 17. A scraper 19 and an arc-shaped block 14 are fixedly connected to the slide rod 18. A rectangular opening is provided on the fixed shaft 13 for the scraper 19 to move back and forth. A sealing plate 3 is slidably installed on the feed pipe 2. An opening is provided at the bottom of the feed pipe 2. A cover plate 5 with a right-angled trapezoidal cross-section is connected to the sealing plate 3 via a bent rod 6. A rotating assembly is provided on the feed pipe 2. The rotating assembly includes a rotating shaft 12 rotatably installed on the feed pipe 2. A first bevel gear 11 is fixedly connected to the rotating shaft 12. A second bevel gear 16 is fixedly connected to one end of the fixed shaft 13.

[0024] The cross-section of the arc-shaped block 14 is semi-circular. The surface of the arc-shaped block 14 near the sealing plate 3 is set as an arc surface. In the initial state, part of the lower end of the sealing plate 3 is inserted into the inside of the feed pipe 2. The cover plate 5 fits against the inner wall of the opening and seals the opening. The sealing plate 3 and the cover plate 5 are well sealed to the feed pipe 2. During the downward movement of the sealing plate 3, it will move against the arc surface of the arc-shaped block 14. The slide rod 18 slides relative to the fixed shaft 13. Multiple rotating plates 15 are fixedly connected to the fixed shaft 13. The multiple rotating plates 15 are all set on the same side of the filter screen 7. During the rotation of the multiple rotating plates 15 together with the fixed shaft 13, the material conveyed inside the feed pipe 2 can be stirred and mixed. The surfaces of the first bevel gear 11 and the second bevel gear 16 are both provided with anti-sticking film.

[0025] The feed pipe 2 has a round hole, and a sealing cap 8 is threaded into the round hole. When the sealing cap 8 is threaded into the round hole, it can seal and block the round hole, effectively preventing material from seeping out of the round hole. The bending rod 6 has multiple threaded grooves arranged at equal intervals. An ear plate 9 is fixedly connected to one side surface of the feed pipe 2. The ear plate 9 is connected to the corresponding threaded groove by a bolt 10. Rotate the bolt 10 to make it threaded into the threaded groove until the bolt 10 is completely disengaged from the bending rod 6. Then the bending rod 6 can be moved up and down to adjust the position of the sealing plate 3 and the cover plate 5. A servo motor is fixedly installed on the feed pipe 2. The drive end of the servo motor is fixedly connected to the rotating shaft 12. When the servo motor is working, it can drive the rotating shaft 12 to rotate. The sealing performance of the rotating shaft 12 when connected to the feed pipe 2 is good.

[0026] In this utility model, other pipes (not shown) are threadedly connected to the threaded sleeve 4 with good sealing, which can extend the length of the feed pipe 2 so as to better transport the material to a specific location. When the feed pump extracts the material, the filter screen 7 can filter out the impurities mixed in the material. When a lot of impurities accumulate on the surface of the filter screen 7, the feed pump stops running. Then, the bolt 10 is rotated to make it threadedly connected to the threaded groove until the bolt 10 is completely disengaged from the bending rod 6. Then, the bending rod 6 is pushed down. Since the sealing plate 3 and the cover plate 5 are fixedly connected to the bending rod 6, the sealing plate 3 and the cover plate 5 will move down at the same time. During the downward movement of the sealing plate 3, it will move against the arc surface of the arc block 14. The slide rod 18 slides relative to the fixed shaft 13. Since one end of the first spring 17 is fixedly connected to the slide rod 18 and the other end is fixedly connected to the fixed shaft 13, the first spring 17 deforms until the arc surface of the arc block 14 is in contact with the side of the sealing plate 3.

[0027] After the sealing plate 3 moves down, it will be tightly attached to the inner wall of the feed pipe 2 and the connection will be well sealed. At this time, the surface of the scraper 19 will be attached to the surface of the filter screen 7. After the cover plate 5 moves down, it will be separated from the opening. Then, the sealing cover 8 will be rotated to separate it from the round hole. Then, a large amount of clean water will be added into the feed pipe 2 through the round hole. At the same time, the servo motor drives the rotating shaft 12 to rotate. During the rotation of the first bevel gear 11, it will mesh with the second bevel gear 16, which will cause the fixed shaft 13 to rotate. As the scraper 19 moves with the fixed shaft 13, it can scrape off the impurities on the surface of the filter screen 7. The clean water can perform a secondary cleaning of the filter screen 7 to prevent the filter screen 7 from being contaminated and blocked. The anti-clogging effect is good. It can effectively filter out the impurities mixed in the material for a long time, avoiding the direct use of materials containing impurities, so as to reduce the defect rate and benefit the subsequent use of the material.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fouling prevention device for reverse osmosis membrane production, comprising a housing (1) and a feed pump disposed inside the housing (1), characterized in that, A feed pipe (2) is fixedly installed on the feed pump. A threaded sleeve (4) is fixedly connected to one end of the feed pipe (2). A filter screen (7) is fixedly installed inside the feed pipe (2). A fixed shaft (13) is rotatably connected to the filter screen (7). A slide rod (18) is connected to the fixed shaft (13) through a first spring (17). A scraper (19) and an arc block (14) are fixedly connected to the slide rod (18). A rectangular opening is provided on the fixed shaft (13) for the scraper (19) to move back and forth. A sealing plate (3) is slidably disposed on the feed pipe (2). An opening is provided at the bottom of the feed pipe (2). The sealing plate (3) is connected to a cover plate (5) with a right-angled trapezoidal cross section by a bent rod (6). A rotating assembly is provided on the feed pipe (2). The rotating assembly includes a rotating shaft (12) rotatably mounted on the feed pipe (2). A first bevel gear (11) is fixedly connected to the rotating shaft (12). A second bevel gear (16) is fixedly connected to one end of the fixed shaft (13).

2. The anti-fouling device for reverse osmosis membrane production according to claim 1, characterized in that... The cross-section of the arc-shaped block (14) is semi-circular, and the surface of the arc-shaped block (14) near the sealing plate (3) is set as an arc surface.

3. The anti-fouling device for reverse osmosis membrane production according to claim 1, characterized in that, Multiple rotating plates (15) are fixedly connected to the fixed shaft (13), and the multiple rotating plates (15) are all arranged on the same side of the filter screen (7).

4. The anti-fouling device for reverse osmosis membrane production according to claim 1, characterized in that, The feed pipe (2) has a round hole, and a sealing cap (8) is threaded into the round hole.

5. The anti-fouling device for reverse osmosis membrane production according to claim 1, characterized in that, The bent rod (6) has multiple threaded grooves arranged at equal intervals. One side surface of the feed pipe (2) is fixedly connected to an ear plate (9). The ear plate (9) is connected to the corresponding threaded groove by bolts (10).

6. The anti-fouling device for reverse osmosis membrane production according to claim 1, characterized in that, A servo motor is fixedly installed on the feed pipe (2), and the drive end of the servo motor is fixedly connected to the rotating shaft (12).

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