Nanofiltration membrane separation treatment device for high-salinity wastewater
By introducing stirring leaves and vortex blades into the high-salt wastewater treatment device, the problem of easy clogging of the nanofiltration membrane is solved, and efficient separation of the nanofiltration membrane and prolonging service life are achieved.
Patent Information
- Application Number
- CN202422465998.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-12
AI Technical Summary
The existing high-salt wastewater nanofiltration membrane separation and treatment devices are prone to blocking the nanofiltration membrane filter holes due to sludge agglomeration and dirt, resulting in reduced efficiency and frequent cleaning and replacement, which wastes manpower.
A device including a mixing tank, nanofiltration membrane box, agitating leaves, vortex blades and multiple nanofiltration membrane plates is designed. The agitating leaves are broken down, the vortex blades prevent sewage concentration, and multiple nanofiltration membrane plates ensure cleaning and replacement do not affect the filtration effect.
Effectively prevent nanofiltration membrane from clogging, extending service life, reducing cleaning frequency, and maintaining efficient filtration effect and processing efficiency.
Smart Images
Figure CN223276125U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of wastewater treatment, and in particular relates to a nanofiltration membrane separation and treatment device for high-salt wastewater. Background Art
[0002] High-salinity wastewater refers to wastewater with a total salt content of at least 3.5wt% (or at least 1% by mass), mainly coming from chemical plants and the collection and processing of oil and natural gas. This type of wastewater contains a variety of substances, including salt, oil, organic heavy metals and radioactive substances, which have a serious impact on the environment. The salt substances in high-salinity wastewater are mostly Cl-, SO42-, Na+, Ca2+, etc. Excessive concentrations of these ions will inhibit and toxicize microorganisms, affecting the purification effect of the biological treatment system;
[0003] The defects of the existing high-salt wastewater treatment equipment based on nanofiltration membrane separation technology are: when the discharged wastewater is subjected to nanofiltration membrane separation treatment, sludge agglomeration or dirt is easily generated in the wastewater, which easily blocks the filter holes of the nanofiltration membrane, thereby causing the subsequent output to become slower and slower. Therefore, the nanofiltration membrane needs to be cleaned and replaced many times, which affects efficiency and wastes manpower, so it is necessary to optimize it. Utility Model Content
[0004] In view of the problems raised by the above background technology, the purpose of the present invention is to provide a nanofiltration membrane separation and treatment device for high-salt wastewater.
[0005] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:
[0006] A nanofiltration membrane separation treatment device for high-salt wastewater comprises a mounting platform, a stirring tank and a nanofiltration membrane box are mounted on the top of the mounting platform, the stirring tank is provided with a feed inlet, a mounting frame is mounted on the top of the stirring tank, a motor is mounted on the top of the mounting frame, an output end of the motor is connected to a rotating shaft, the rotating shaft is rotatably mounted on the stirring tank, a driving wheel is mounted on the position of the rotating shaft located at the lower side of the mounting frame, a stirring blade is mounted on the area of the rotating shaft located inside the stirring tank, a water pump is connected to the output end of the stirring tank, the output end of the water pump is communicated with the nanofiltration membrane box, and a mounting bracket is connected between the stirring tank and the nanofiltration membrane box. A plate, a gear box is installed on the mounting plate, a first rotating rod is rotatably installed on the input end of the gear box, a driven wheel is installed on the end of the first rotating rod, a belt is installed between the driving wheel and the driven wheel, a first bevel gear is installed on the first rotating rod, a second rotating rod is rotatably installed on the output end of the gear box, a second bevel gear meshing with the first bevel gear is installed on the end of the second rotating rod, a vortex blade is installed on the output end of the second rotating rod, and the vortex blade is placed in the nanofiltration membrane box, the nanofiltration membrane box is provided with a plurality of slots, nanofiltration membrane plates are placed in the slots, and the output end of the nanofiltration membrane box is connected to a discharge pipe.
[0007] It is further defined that a frustum plate is installed inside the mixing tank, the frustum plate is provided with a water outlet, and the rotating shaft is provided with a frustum matching the gap of the frustum plate. Such a design can achieve the purpose of crushing larger impurities.
[0008] It is further defined that the nanofiltration membrane box is equipped with a cleaning window, and both the cleaning window and the nanofiltration membrane plate are equipped with handles. With this design, the cleaning window is conducive to cleaning the inside of the nanofiltration membrane box, and the setting of the handle is conducive to opening the cleaning window and taking out the nanofiltration membrane plate for cleaning and replacement.
[0009] It is further defined that a heater is installed in the nanofiltration membrane box. Such a design can improve the treatment effect by heating some sewage that requires temperature, and can also prevent the problem of ice forming inside the nanofiltration membrane box at low temperatures.
[0010] It is further defined that there are at least three nanofiltration membrane plates. Such a design ensures the filtering effect while also allowing the nanofiltration membrane plates to be cleaned and replaced without affecting normal use.
[0011] The beneficial effects of adopting the utility model are:
[0012] The structural design of the utility model can break up the lumps and dirt in the sewage under the effect of the stirring blades, thereby ensuring that the nanofiltration membrane is not easily blocked in the future, ensuring the filtering effect and reducing the frequency of replacement and cleaning of the nanofiltration membrane plate;
[0013] The structural design of the utility model and the arrangement of multiple nanofiltration membrane plates ensure the filtration effect while allowing the nanofiltration membrane plates to be directly pulled out for cleaning. Moreover, because of the arrangement of multiple plates, cleaning one of them does not affect the overall filtration effect, thus ensuring the processing efficiency.
[0014] The structural design of the utility model can also drive the vortex blades to rotate during the stirring process, causing turbulence in the water inside the nanofiltration membrane box, preventing sewage from being concentrated in one place and passing through the nanofiltration membrane plate, effectively reducing the local filtration pressure of the nanofiltration membrane plate and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;
[0016] Figure 1 This is a structural schematic diagram of an embodiment of a nanofiltration membrane separation and treatment device for high-salt wastewater according to the present invention;
[0017] Figure 2 This is a schematic cross-sectional view of an embodiment of a nanofiltration membrane separation and treatment device for high-salt wastewater according to the present invention;
[0018] The main component symbols are described as follows:
[0019] Mounting platform 1; stirring tank 2; nanofiltration membrane box 3; feed inlet 4; mounting frame 5; motor 6; rotating shaft 7; driving wheel 8; stirring blade 9; water pump 10; mounting plate 11; gear box 12; first rotating rod 13; driven wheel 14; belt 15; first bevel gear 16; second rotating rod 17; second bevel gear 18; vortex blade 19; slot 20; nanofiltration membrane plate 21; discharge pipe 22; frustum plate 23; water outlet 24; frustum 25; cleaning window 26; handle 27; heater 28. DETAILED DESCRIPTION
[0020] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.
[0021] like Figure 1 、 Figure 2As shown, the utility model is a nanofiltration membrane separation treatment device for high-salt wastewater, including a mounting platform 1, a stirring tank 2 and a nanofiltration membrane box 3 are installed on the top of the mounting platform 1, the stirring tank 2 is provided with a feed inlet 4, a mounting frame 5 is installed on the top of the stirring tank 2, a motor 6 is installed on the top of the mounting frame 5, the output end of the motor 6 is connected to a rotating shaft 7, the rotating shaft 7 is rotatably installed on the stirring tank 2, the rotating shaft 7 is located at the lower side of the mounting frame 5. A driving wheel 8 is installed on the area where the rotating shaft 7 is located inside the stirring tank 2. A stirring blade 9 is installed, a water pump 10 is connected to the output end of the stirring tank 2, and the output end of the water pump 10 is communicated with the nanofiltration membrane box 3. A mounting plate 11 is connected between the stirring tank 2 and the nanofiltration membrane box 3. The mounting plate 1 1 is installed on a gear box 12, the input end of the gear box 12 is rotatably installed with a first rotating rod 13, the end of the first rotating rod 13 is installed with a driven wheel 14, a belt 15 is installed between the driving wheel 8 and the driven wheel 14, the first rotating rod 13 is installed with a first bevel gear 16, the output end of the gear box 12 is rotatably installed with a second rotating rod 17, the end of the second rotating rod 17 is installed with a second bevel gear 18 that meshes with the first bevel gear 16, the output end of the second rotating rod 17 is installed with a vortex blade 19, the vortex blade 19 is placed in the nanofiltration membrane box 3, the nanofiltration membrane box 3 is provided with a plurality of slots 20, the slots 20 are placed with nanofiltration membrane plates 21, and the output end of the nanofiltration membrane box 3 is connected with a discharge pipe 22.
[0022] In this embodiment, when using a nanofiltration membrane separation treatment device for high-salt wastewater, the high-salt wastewater enters the stirring tank 2 from the feed inlet 4. Driven by the motor 6, the stirring blade 9 breaks up and disrupts the wastewater, processing some agglomerates and open dirt contained therein. Under the effect of the water pump 10, the wastewater is pumped into the nanofiltration membrane box 3, filtered by multiple nanofiltration membrane plates 21, and discharged from the discharge pipe 22.
[0023] During the operation of the motor 6, the driving wheel 8 is driven to rotate, and under the traction of the belt 15, the driven wheel 14 and the first rotating rod 13 located at the axis of the driven wheel 14 are driven to rotate, and then the first bevel gear 16 and the second bevel gear 18 are engaged, which drives the second rotating rod 17 to rotate, and then drives the vortex blades 19 located in the nanofiltration membrane box 3 to rotate, so that the water in the nanofiltration membrane box 3 is in a turbulent state, thereby preventing the wastewater from passing through the nanofiltration membrane plate 21 from a local position, preventing the nanofiltration membrane plate 21 from being damaged too quickly and losing the overall filtration effect, thereby ensuring its service life;
[0024] After being used for a period of time, the nanofiltration membrane plate 21 can be directly drawn out from the nanofiltration membrane box 3 to be cleaned and replaced, which is simple, convenient and quick.
[0025] Preferably, a frustum plate 23 is installed inside the mixing tank 2, and the frustum plate 23 is provided with a water outlet 24. The rotating shaft 7 is provided with a frustum 25 that matches the gap with the frustum plate 23. Such a design can achieve the purpose of crushing larger impurities. In fact, an auxiliary crushing structure can also be considered according to specific circumstances.
[0026] Preferably, the nanofiltration membrane box 3 is equipped with a cleaning window 26, and both the cleaning window 26 and the nanofiltration membrane plate 21 are equipped with handles 27. With this design, the cleaning window 26 is conducive to cleaning the inside of the nanofiltration membrane box 3, and the setting of the handle 27 is conducive to opening the cleaning window 26 and taking out the nanofiltration membrane plate 21 for cleaning and replacement. In fact, cleaning measures and structures that facilitate the removal of the nanofiltration membrane plate 21 can also be considered according to specific circumstances.
[0027] Preferably, a heater 28 is installed in the nanofiltration membrane box 3. Such a design can improve the treatment effect by heating some sewage that requires temperature, and can also prevent the problem of ice formation inside the nanofiltration membrane box 3 at low temperatures. In fact, the choice of heater 28 can also be considered according to specific circumstances.
[0028] It is preferred that there are at least three nanofiltration membrane plates 21. This design ensures the filtering effect while also allowing the nanofiltration membrane plates 21 to be cleaned and replaced without affecting normal use. In fact, the number of nanofiltration membrane plates 21 can also be considered based on specific circumstances.
[0029] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein shall be covered by the claims of the present invention.
Claims
1. A nanofiltration membrane separation and treatment device for high-salt wastewater, comprising a mounting platform (1), characterized in that: A stirring tank (2) and a nanofiltration membrane box (3) are installed on the top of the mounting platform (1), the stirring tank (2) is provided with a feed port (4), a mounting frame (5) is installed on the top of the stirring tank (2), a motor (6) is installed on the top of the mounting frame (5), the output end of the motor (6) is connected to a rotating shaft (7), the rotating shaft (7) is rotatably mounted on the stirring tank (2), the rotating shaft (7) is located at the lower side of the mounting frame (5) and is equipped with a driving wheel (8), the rotating shaft (7) is located in the area inside the stirring tank (2) and is equipped with a stirring blade (9), the output end of the stirring tank (2) is connected to a water pump (10), the output end of the water pump (10) is communicated with the nanofiltration membrane box (3), a mounting plate (11) is connected between the stirring tank (2) and the nanofiltration membrane box (3), and a gear box (12) is installed on the mounting plate (11). ), a first rotating rod (13) is rotatably mounted on the input end of the gear box (12), a driven wheel (14) is mounted on the end of the first rotating rod (13), a belt (15) is mounted between the driving wheel (8) and the driven wheel (14), a first bevel gear (16) is mounted on the first rotating rod (13), a second rotating rod (17) is rotatably mounted on the output end of the gear box (12), a second bevel gear (18) meshing and matching with the first bevel gear (16) is mounted on the end of the second rotating rod (17), a vortex blade (19) is mounted on the output end of the second rotating rod (17), the vortex blade (19) is placed in the nanofiltration membrane box (3), the nanofiltration membrane box (3) is provided with a plurality of slots (20), nanofiltration membrane plates (21) are placed in the slots (20), and the output end of the nanofiltration membrane box (3) is connected to a discharge pipe (22).
2. The nanofiltration membrane separation treatment device for high-salt wastewater according to claim 1, characterized in that: A frustum plate (23) is installed inside the mixing tank (2), the frustum plate (23) is provided with a water outlet hole (24), and the rotating shaft (7) is installed with a frustum (25) that matches the gap with the frustum plate (23).
3. The nanofiltration membrane separation treatment device for high-salt wastewater according to claim 2, characterized in that: The nanofiltration membrane box (3) is equipped with a cleaning window (26), and both the cleaning window (26) and the nanofiltration membrane plate (21) are equipped with handles (27).
4. The nanofiltration membrane separation treatment device for high-salt wastewater according to claim 3, characterized in that: A heater (28) is installed in the nanofiltration membrane box (3).
5. The nanofiltration membrane separation treatment device for high-salt wastewater according to claim 4, characterized in that: There are at least three nanofiltration membrane plates (21).