Nanofiltration membrane for well salt processing

Abstract

The utility model discloses a nanofiltration membrane for well salt processing, which relates to the technical field of nanofiltration membranes and comprises cylindrical nanofiltration membrane bodies annularly arranged in a shell at equal intervals, two ends of the shell are respectively connected with connecting ends, one side of each connecting end is connected with an end cover, and auxiliary components are arranged on the surfaces of the connecting ends and the end covers; an annular plate arranged at the top end of the end cover is arranged in the auxiliary assembly, a rack is connected to the inner wall of the annular plate, a gear is connected to the surface of the rack in an engaged mode, and a screw is connected to the surface of the gear. According to the device disclosed by the utility model, the annular plate can be directly rotated through the arranged auxiliary assembly, so that the rack drives the gear, the screw rods and the like to rotate and move, and the plurality of screw rods can be taken down from the surfaces of the end cover and the connecting end at one time, so that the interior of the nanofiltration membrane can be cleaned conveniently, and the bolts do not need to be disassembled one by one by using a specified tool; the operation is relatively simple, and the cleaning efficiency of the nanofiltration membrane is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nanofiltration membranes, in particular to a nanofiltration membrane for well salt processing. Background Art

[0002] Nanofiltration equipment is a pressure-driven membrane separation process between reverse osmosis and ultrafiltration. The pore size of nanofiltration membranes is about a few nanometers. Most nanofiltration membranes are derived from reverse osmosis membranes, such as CA, CTA membranes, aromatic polyamide composite membranes, and sulfonated polyethersulfone membranes. However, compared with reverse osmosis, the operating pressure of nanofiltration devices is lower, so nanofiltration equipment is also called low-pressure reverse osmosis or loose reverse osmosis.

[0003] At present, during the processing of well salt, the calcium and magnesium ions in the brine are first purified by the ceramic membrane filtration method, and then the purified brine is deeply treated by the nanofiltration membrane filtration method, so that the produced products meet the use standards of multiple industries. The surface of the existing nanofiltration membrane used in well salt processing is a shell, and the interior contains a screen, a membrane-diaphragm net, etc. The two sides of the shell are connected with end covers by bolts. After long-term use, the nanofiltration membrane is easily blocked by some impurities. When it needs to be cleaned, the bolts on the end covers on both sides are generally removed one by one by designated tools, and then the shell is removed to facilitate the cleaning of the interior. When the bolts are removed one by one using designated tools, it is not only troublesome, but also reduces the cleaning efficiency of the nanofiltration membrane. Utility Model Content

[0004] The utility model provides a nanofiltration membrane for well salt processing. Through the auxiliary components, the annular plate can be directly rotated, so that the rack drives the gear and the screw to rotate and move, so that multiple screws can be removed from the surface of the end cover and the connection end at one time, so as to facilitate the cleaning of the inside of the nanofiltration membrane. There is no need to use designated tools to disassemble the bolts one by one. The operation is relatively simple and the cleaning efficiency of the nanofiltration membrane is improved. In summary, the problems in the background technology are solved.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A nanofiltration membrane for well salt processing, comprising a cylindrical nanofiltration membrane body annularly and equidistantly arranged inside a shell, wherein both ends of the shell are respectively connected to connecting ends, and one side of the connecting end is connected to an end cap, and auxiliary components are arranged on the surfaces of the connecting end and the end cap;

[0007] The auxiliary component includes an annular plate disposed on the top of the end cover, and the inner wall of the annular plate is connected to a rack, the surface of the rack is meshed with a gear, and the surface of the gear is connected to a screw;

[0008] The top end of the connection end is annularly and equidistantly provided with first threaded holes;

[0009] The surface of the end cover is annularly and equidistantly provided with second threaded holes.

[0010] As a further description of the above technical solution:

[0011] The screw rod is threadedly connected to the second threaded hole and the interior of the first threaded hole.

[0012] As a further description of the above technical solution:

[0013] A sliding groove is provided at the inner bottom end of the annular plate, and a sliding block is connected inside the sliding groove.

[0014] As a further description of the above technical solution:

[0015] A sealing ring is provided at the connection between the end cover and the connecting end.

[0016] As a further description of the above technical solution:

[0017] The top end of the connection end is provided with positioning holes at equal intervals in an annular shape, and the bottom end of the end cover is provided with positioning rods at equal intervals in an annular shape. The diameter of the positioning rods is the same as the inner diameter of the positioning holes, and the positioning rods are connected to the inside of the positioning holes.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0019] In the utility model, the annular plate can be directly rotated through the auxiliary components, so that the rack drives the gear and the screw to rotate and move, so that multiple screws can be removed from the surface of the end cover and the connecting end at one time, so as to facilitate the cleaning of the inside of the nanofiltration membrane. There is no need to use designated tools to disassemble the bolts one by one. The operation is relatively simple and the cleaning efficiency of the nanofiltration membrane is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a nanofiltration membrane used in well salt processing;

[0021] Figure 2 It is a schematic diagram of the structure of the surface part of the connection end in the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the bottom end portion of the middle end cover of the utility model;

[0023] Figure 4 It is a schematic diagram of the internal structure of the annular plate in the utility model.

[0024] Legend:

[0025] 1. Shell; 2. Connecting end; 3. End cover; 4. Ring plate; 5. First threaded hole; 6. Second threaded hole; 7. Rack; 8. Gear; 9. Screw; 10. Positioning hole; 11. Positioning rod; 12. Slide groove; 13. Slider. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-Figure 3 A nanofiltration membrane for well salt processing comprises a cylindrical nanofiltration membrane body arranged in an annular manner equidistantly inside a shell 1, two ends of the shell 1 are respectively connected with connecting ends 2, and one side of the connecting end 2 is connected with an end cap 3, and the surfaces of the connecting end 2 and the end cap 3 are provided with auxiliary components; the interior of the auxiliary component comprises an annular plate 4 arranged at the top of the end cap 3, and the inner wall of the annular plate 4 is connected with a rack 7, the surface of the rack 7 is meshed and connected with a gear 8, and the surface of the gear 8 is connected with a screw 9; the top of the connecting end 2 is annularly equidistantly provided with first threaded holes 5; the surface of the end cap 3 is annularly equidistantly provided with second threaded holes 6. After the nanofiltration membrane has been used for a long time to purify and filter the well salt, since the well salt contains more impurities, The inside of the nanofiltration membrane is easily clogged, so the inside of the nanofiltration membrane needs to be cleaned. The annular plate 4 can be rotated first to make the rack 7 drive the gear 8 to rotate, and the gear 8 can drive the screw 9 connected to it to rotate on the surface of the slider 13. Since the screw 9 is threadedly connected to the second threaded hole 6 and the inside of the first threaded hole 5, the screw 9 can be rotated and moved, so that the screw 9 can be removed from the inside of the first threaded hole 5. The end cover 3 can be removed from the surface of the connecting end 2 to facilitate cleaning of the inside. When disassembling the end cover 3, it is only necessary to take out the screw 9 from the inside of the first threaded hole 5, and there is no need to take it out from the inside of the second threaded hole 6, so as to facilitate subsequent installation.

[0028] Furthermore, the screw rod 9 is threadedly connected to the second threaded hole 6 and the interior of the first threaded hole 5, so that after the screw rod 9 is passed through the second threaded hole 6 and connected to the interior of the first threaded hole 5, the end cover 3 can be fixed to the surface of the connecting end 2, and it is also convenient for disassembly without using designated tools to separately disassemble the bolts.

[0029] Furthermore, a slide groove 12 is provided at the inner bottom end of the annular plate 4, and a slider 13 is connected to the inside of the slide groove 12. The slider 13 and the screw rod 9 are rotationally connected, which facilitates the gear 8 to drive the screw rod 9 to rotate on the surface of the slider 13. The slide groove 12 and the slider 13 also facilitate the annular plate 4 to rotate on the surface of the screw rod 9.

[0030] Furthermore, a sealing ring is provided at the connection between the end cover 3 and the connection end 2, and the sealing ring can be used to seal the connection between the end cover 3 and the connection end 2 to avoid leakage caused by gaps.

[0031] Furthermore, positioning holes 10 are equidistantly arranged in an annular shape at the top end of the connecting end 2, and positioning rods 11 are equidistantly arranged in an annular shape at the bottom end of the end cover 3. The diameter of the positioning rods 11 is the same as the inner diameter of the positioning holes 10, and the positioning rods 11 are connected to the inside of the positioning holes 10. This is to facilitate the connection of the screw rod 9 with the second threaded hole 6 on the end cover 3 after the positioning rods 11 are connected to the positioning holes 10, so as to prevent the presence of a gap between them after the connection, resulting in the movement of the end cover 3 on the surface of the connecting end 2, etc., which affects the sealing between them.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A nanofiltration membrane for well salt processing, comprising a cylindrical nanofiltration membrane body annularly and equidistantly arranged inside a housing (1), characterized in that: Both ends of the shell (1) are respectively connected to connecting ends (2), and one side of the connecting end (2) is connected to an end cover (3), and auxiliary components are provided on the surfaces of the connecting end (2) and the end cover (3); The auxiliary component includes an annular plate (4) disposed at the top of the end cover (3), and the inner wall of the annular plate (4) is connected to a rack (7), the surface of the rack (7) is meshingly connected to a gear (8), and the surface of the gear (8) is connected to a screw (9); The top end of the connection end (2) is provided with first threaded holes (5) at equal intervals in an annular manner; The surface of the end cover (3) is provided with second threaded holes (6) at equal intervals in an annular manner.

2. The nanofiltration membrane for well salt processing according to claim 1, characterized in that: The screw rod (9) is threadedly connected to the second threaded hole (6) and the interior of the first threaded hole (5).

3. The nanofiltration membrane for well salt processing according to claim 1, characterized in that: A sliding groove (12) is provided at the inner bottom end of the annular plate (4), and a sliding block (13) is connected inside the sliding groove (12).

4. The nanofiltration membrane for well salt processing according to claim 1, characterized in that: A sealing ring is provided at the connection between the end cover (3) and the connection end (2).

5. The nanofiltration membrane for well salt processing according to claim 3, characterized in that: Positioning holes (10) are equidistantly arranged in an annular pattern at the top end of the connection end (2), and positioning rods (11) are equidistantly arranged in an annular pattern at the bottom end of the end cover (3). The diameter of the positioning rods (11) is the same as the inner diameter of the positioning holes (10), and the positioning rods (11) are connected to the inside of the positioning holes (10).

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