Strong brine zero-discharge treatment device for seawater desalination
By designing detachable stirring blades and a screening device, the problems of inconvenient cleaning and difficult particle separation in existing devices have been solved. This has enabled corrosion protection of the stirring blades and efficient separation of crystalline particles, thereby improving the service life and processing efficiency of the seawater desalination device.
Patent Information
- Application Number
- CN202520454346.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-17
AI Technical Summary
The existing seawater desalination equipment has its stirring mechanism located inside, which is inconvenient to clean, and the coagulated particles are difficult to separate, affecting its service life and processing efficiency.
A zero-discharge treatment device for concentrated brine in seawater desalination was designed, including detachable stirring blades and a screening device. The stirring blades are detachable via pins and pull blocks, and the screening device consists of a mounting frame, a coarse filter plate, and a fine filter plate, which facilitates cleaning and particle separation.
It enables convenient cleaning of the stirring blades to prevent corrosion, and the screening device effectively separates crystalline particles, improving processing efficiency and resource recycling.
Smart Images

Figure CN223921194U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of zero-emission treatment technology, and more specifically, it relates to a zero-emission treatment device for concentrated brine from seawater desalination. Background Technology
[0002] Concentrated brine is a byproduct of seawater desalination, with a salinity far exceeding that of the original seawater. The treatment and discharge of concentrated brine is a crucial aspect of seawater desalination technology. Direct discharge of concentrated brine alters the salinity of local sea areas, impacting the survival and reproduction of marine life and causing pollution to the marine environment. Therefore, discharge treatment devices are needed to treat concentrated brine, reducing its environmental impact and enabling effective resource recovery, ultimately achieving zero discharge. Existing treatment devices typically involve adding catalysts to the concentrated brine to coagulate recyclable substances, facilitating subsequent recycling.
[0003] Although some existing treatment devices have a stirring mechanism, the stirring mechanism is located inside the device, making it inconvenient to clean. With prolonged use, the stirring blades are easily corroded by concentrated salt water, affecting their service life.
[0004] Furthermore, in existing treatment devices, the coagulated particles are usually mixed inside the brine during the treatment process, making it difficult to separate them after discharge and affecting the overall efficiency of the treatment. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the problems existing in the prior art, this utility model provides a zero-discharge treatment device for concentrated brine in seawater desalination, thereby solving the technical problem mentioned in the background art that the stirring mechanism is inconvenient to clean because it is located inside the device.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a zero-discharge treatment device for concentrated brine in seawater desalination, comprising a tank body, a cover on the upper end of the tank body, a motor on the upper end of the cover, an output end of the motor passing through the cover and having a stirring shaft, mounting blocks fixedly provided on the outer wall of the stirring shaft on both the upper and lower sides, multiple mounting blocks arranged in a circumferential pattern, stirring blades inside each mounting block, the stirring blades being bolted to the mounting blocks, insertion blocks on the periphery of the cover, corresponding insertion sleeves on the outer wall of the tank body, pins slidably mounted on each insertion sleeve, insertion holes correspondingly opened on each insertion block, one end of each pin being inside the insertion hole, and a pull block at the other end of each pin, with a spring between the pull block and the insertion sleeve, a discharge pipe at the bottom of the tank body, and a screening device inside the discharge pipe.
[0009] The present invention is further configured such that the screening device includes a mounting frame, the mounting frame is slidably mounted with the discharge pipe, a limiting frame is provided at the bottom of the mounting frame, a water outlet pipe is fixedly provided at the lower end face of the limiting frame, a coarse filter plate and a fine filter plate are slidably mounted inside the mounting frame, and supports are provided at the lower end face of the coarse filter plate and at the four corners. The support at the lower end of the fine filter plate contacts the limiting frame, and the support at the lower end of the coarse filter plate contacts the fine filter plate, which facilitates the filtration of the treated concentrated brine.
[0010] The present invention is further configured such that sliders are provided on both sides of the mounting frame, and corresponding grooves are provided on the inner wall of the discharge pipe. The discharge pipe and the sliders are fixedly installed by bolts, which facilitates the positioning and installation of the mounting frame.
[0011] The present invention is further configured such that a strip-shaped hole is provided on the outer wall of the discharge pipe, the strip-shaped hole is located at the upper end of the mounting frame, an adjusting plate is slidably provided inside the strip-shaped hole, and adjusting brackets are fixedly provided on both sides of the adjusting plate and on the outer wall of the discharge pipe. The adjusting brackets are provided with threaded holes, and the adjusting plate is provided with adjusting holes. Multiple adjusting holes are provided and arranged linearly. Adjusting screws are provided inside the threaded holes and adjusting holes to facilitate the adjustment and fixing of the extension distance of the adjusting plate.
[0012] The present invention is further provided that one end of the adjusting screw is fixedly provided with a turning block, which facilitates the disassembly of the adjusting screw.
[0013] The present invention is further provided with a water inlet pipe on the outer wall of the tank and at the upper end, so as to facilitate the addition of concentrated brine into the tank.
[0014] The present invention is further provided with a dosing tube on the upper end face of the cover, which facilitates the addition of medicines into the tank.
[0015] The present invention is further configured such that a groove is provided on the inner wall of the discharge pipe, and one end of the adjusting plate is located inside the groove, which facilitates limiting one end of the adjusting plate.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides a zero-discharge treatment device for concentrated brine in seawater desalination, which has the following beneficial effects:
[0018] 1. By setting up a motor, stirring shaft, stirring blades, and mounting clamps, the user can pull the pull block to disengage one end of the pin from the insertion hole. At this point, the cover and tank can be disassembled to remove the stirring shaft and stirring blades from the inside of the tank. Subsequently, the stirring blades can be cleaned by removing the bolts to prevent corrosion and extend the service life of the device.
[0019] 2. By setting up an installation frame, a limiting frame, a coarse filter plate, and a fine filter plate, the crystallized particles in the brine will be filtered through the coarse and fine filter plates inside the installation frame during the drainage process and remain inside the installation frame. The installation frame can be disassembled by removing the bolts to remove the coarse and fine filter plates from inside the installation frame, so as to facilitate the collection and recycling of the crystallized particles on top of them.
[0020] 3. By setting up a strip-shaped hole, adjusting plate, adjusting bracket, and adjusting screw, after the concentrated brine inside the tank crystallizes, the adjusting screw can be removed by turning the block, and then the adjusting plate can be pulled to allow the mixed water to enter the mounting frame. At the same time, the user can also adjust the installation position of the adjusting screw through the adjusting hole to adjust the extension distance of the adjusting plate, thereby changing the outflow rate of the mixed water to facilitate subsequent filtration operations. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of a zero-discharge treatment device for concentrated brine in seawater desalination in its unused state.
[0022] Figure 2 A cross-sectional view of a zero-discharge treatment device for concentrated brine in seawater desalination.
[0023] Figure 3 Exploded view of the installation of the discharge pipe, mounting frame, coarse filter plate, fine filter plate and regulating plate;
[0024] Figure 4 This is a schematic diagram showing the location of the internal groove of the discharge pipe;
[0025] Figure 5 Exploded view of the installation of the frame, coarse filter plate and fine filter plate;
[0026] Figure 6 Exploded view of the tank body, cover, and latch installation.
[0027] In the diagram: 1. Tank body; 2. Cover; 3. Motor; 4. Agitator shaft; 5. Mounting clamp; 6. Agitator blade; 7. Insertion block; 8. Insertion sleeve; 9. Pin; 10. Insertion hole; 11. Pull block; 12. Spring; 13. Discharge pipe; 14. Mounting frame; 15. Limiting frame; 16. Water outlet pipe; 17. Coarse filter plate; 18. Fine filter plate; 19. Support; 20. Slider; 21. Slide groove; 22. Strip hole; 23. Adjusting plate; 24. Adjusting frame; 25. Threaded hole; 26. Adjusting hole; 27. Adjusting screw; 28. Tightening block; 29. Water inlet pipe; 30. Chemical dosing pipe; 31. Groove. Detailed Implementation
[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0031] Please see Figure 1-6 A zero-discharge treatment device for concentrated brine in seawater desalination includes a tank body 1. A cover 2 is provided on the upper surface of the tank body 1. A motor 3 is provided on the upper surface of the cover 2. The output end of the motor 3 passes through the cover 2 and is equipped with a stirring shaft 4. Mounting clamps 5 are fixedly provided on the outer wall of the stirring shaft 4 on both the upper and lower sides. Multiple mounting clamps 5 are arranged in a circular pattern. Stirring blades 6 are provided inside each mounting clamp 5. The stirring blades 6 are fixed to the mounting clamps 5 with bolts. Insertion blocks 7 are provided around the periphery of the cover 2. Insertion sleeves 8 are correspondingly provided on the outer wall of the tank body 1. Pins 9 are slidably provided on each insertion sleeve 8. Insertion holes 10 are correspondingly opened on each insertion block 7. One end of each pin 9 is located inside the insertion hole 10, and the other end of each pin 9 is provided with a pull block 11. A spring 12 is provided between the pull block 11 and the insertion sleeve 8. A discharge pipe 13 is provided at the bottom of the tank body 1, and a screening device is provided inside the discharge pipe 13.
[0032] In this embodiment, the screening device includes a mounting frame 14, which is slidably mounted with the discharge pipe 13. A limiting frame 15 is provided at the bottom of the mounting frame 14, and a water outlet pipe 16 is fixedly provided on the lower end face of the limiting frame 15. A coarse filter plate 17 and a fine filter plate 18 are slidably mounted inside the mounting frame 14. A bracket 19 is provided on the lower end face of the coarse filter plate 17 and the four corners of the fine filter plate 18. The bracket 19 at the lower end of the fine filter plate 18 contacts the limiting frame 15, and the bracket 19 at the lower end of the coarse filter plate 17 contacts the fine filter plate 18. A slider 20 is provided on both sides of the mounting frame 14, and a corresponding groove 21 is provided on the inner wall of the discharge pipe 13. The discharge pipe 13 and the slider 20 are fixedly mounted with bolts.
[0033] More specifically, the user can pull the lever 11 to disengage one end of the pin 9 from the socket 10, at which point the cover 2 and the tank 1 can be separated to remove the stirring shaft 4 and the stirring blade 6 from the inside of the tank 1. The stirring blade 6 can then be cleaned by removing the bolts to prevent corrosion. During the drainage process, the crystallized particles in the brine will be filtered through the coarse filter plate 17 and the fine filter plate 18 inside the mounting frame 14 and remain inside the mounting frame 14. The mounting frame 14 can then be separated by removing the bolts to remove the coarse filter plate 17 and the fine filter plate 18 from the inside of the mounting frame 14, so as to facilitate the collection of the crystallized particles at their upper end, which is conducive to recycling.
[0034] Please see Figures 1-4 As an implementation method for adjusting the water output at the bottom of tank 1: a strip hole 22 is provided on the outer wall of the discharge pipe 13. The strip hole 22 is located at the upper end of the mounting frame 14. An adjusting plate 23 is slidably provided inside the strip hole 22. Adjusting brackets 24 are fixed on both sides of the adjusting plate 23 and on the outer wall of the discharge pipe 13. Threaded holes 25 are provided on the adjusting brackets 24. Adjusting holes 26 are provided on the adjusting plate 23. Multiple adjusting holes 26 are provided and arranged linearly. Adjusting screws 27 are provided inside the threaded holes 25 and the adjusting holes 26. A turning block 28 is fixedly provided at one end of the adjusting screw 27. A groove 31 is provided on the inner wall of the discharge pipe 13. One end of the adjusting plate 23 is located inside the groove 31.
[0035] Specifically, after the concentrated brine inside the tank 1 crystallizes, the adjusting screw 27 can be removed by turning the block 28, and then the adjusting plate 23 can be pulled to allow the mixed water to enter the mounting frame 14. At the same time, the user can also adjust the installation position of the adjusting screw 27 through the adjusting hole 26 to adjust the extension distance of the adjusting plate 23, thereby changing the water flow rate of the mixed water to facilitate subsequent filtration operations.
[0036] Please refer to Figure 1As a further embodiment of adding concentrated brine and reactant to tank 1: a water inlet pipe 29 is provided on the outer wall of tank 1 at the upper end, and a dosing pipe 30 is provided on the upper end face of cover 2.
[0037] Specifically, users can add catalyst to concentrated brine through dosing pipe 30 to achieve crystallization, which facilitates the subsequent achievement of zero emissions.
[0038] In summary, when using the entire equipment: the user can add concentrated brine to tank 1 through water pipe 29, and simultaneously add catalyst and crystallizing agent to tank 1 through chemical dosing pipe 30. Then, the motor 3 is turned on to cause the stirring shaft 4 to drive the stirring blades 6 to rotate, thus agitating the concentrated brine and ensuring it fully contacts the crystallizing agent for rapid crystallization. Afterwards, the adjusting screw 27 is removed by turning block 28, and the adjusting plate 23 is pulled outward to allow mixed water to enter the mounting frame 14. Simultaneously, the user can adjust the installation position of the adjusting screw 27 through adjusting hole 26 to adjust the extension of the adjusting plate 23. The outlet distance is adjusted to change the outlet speed of the mixed water, which facilitates subsequent filtration operations. Then, the bolts can be removed to disassemble the mounting frame 14, so that the coarse filter plate 17 and the fine filter plate 18 can be removed from the inside of the mounting frame 14, so that the crystallized particles at the top can be collected and recycled. When it is necessary to clean the device, the pull block 11 can be pulled to disengage one end of the pin 9 from the insertion hole 10. At this time, the cover 2 and the tank 1 can be disassembled to remove the stirring shaft 4 and the stirring blade 6 from the inside of the tank 1. The stirring blade 6 can then be cleaned by removing the bolts to prevent corrosion.
[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A zero-discharge treatment device for concentrated brine from seawater desalination, comprising a tank (1), characterized in that: The upper end of the tank (1) is provided with a cover (2), and the upper end of the cover (2) is provided with a motor (3). The output end of the motor (3) passes through the cover (2) and is provided with a stirring shaft (4). On the outer wall of the stirring shaft (4) and on both the upper and lower sides, there are fixed mounting blocks (5). There are multiple mounting blocks (5) arranged in a circular shape. The interior of each mounting block (5) is provided with stirring blades (6). The stirring blades (6) are fixed to the mounting blocks (5) with bolts. The periphery of the cover (2) The tank body (1) is provided with a plug-in block (7), and a plug-in sleeve (8) is provided on the outer wall of the tank body (1). A pin (9) is slidably provided on each plug-in sleeve (8). A plug hole (10) is provided on each plug-in block (7). One end of each pin (9) is located inside the plug hole (10). A pull block (11) is provided on the other end of each pin (9). A spring (12) is provided between the pull block (11) and the plug-in sleeve (8). A discharge pipe (13) is provided at the bottom of the tank body (1). A screening device is provided inside the discharge pipe (13).
2. The zero-discharge treatment device for concentrated brine from seawater desalination according to claim 1, characterized in that: The screening device includes a mounting frame (14), which is slidably mounted with a discharge pipe (13). A limiting frame (15) is provided at the bottom of the mounting frame (14), and a water outlet pipe (16) is fixedly provided on the lower end face of the limiting frame (15). A coarse filter plate (17) and a fine filter plate (18) are slidably mounted inside the mounting frame (14). A bracket (19) is provided on the lower end face of the coarse filter plate (17) and at the four corners. The bracket (19) at the lower end of the fine filter plate (18) contacts the limiting frame (15), and the bracket (19) at the lower end of the coarse filter plate (17) contacts the fine filter plate (18).
3. The zero-discharge treatment device for concentrated brine from seawater desalination according to claim 2, characterized in that: The mounting frame (14) is provided with sliders (20) on both sides, and the inner wall of the discharge pipe (13) is provided with corresponding grooves (21). The discharge pipe (13) and the sliders (20) are fixedly installed by bolts.
4. The zero-discharge treatment device for concentrated brine from seawater desalination according to claim 1, characterized in that: A strip-shaped hole (22) is provided on the outer wall of the discharge pipe (13). The strip-shaped hole (22) is located at the upper end of the mounting frame (14). An adjusting plate (23) is slidably provided inside the strip-shaped hole (22). Adjusting brackets (24) are fixedly provided on both sides of the adjusting plate (23) and on the outer wall of the discharge pipe (13). Threaded holes (25) are provided on the adjusting brackets (24). Adjusting holes (26) are provided on the adjusting plate (23). Multiple adjusting holes (26) are provided and arranged linearly. Adjusting screws (27) are provided inside the threaded holes (25) and the adjusting holes (26).
5. A zero-discharge treatment device for concentrated brine from seawater desalination according to claim 4, characterized in that: One end of the adjusting screw (27) is fixedly provided with a turning block (28).
6. The zero-discharge treatment device for concentrated brine from seawater desalination according to claim 1, characterized in that: A water inlet pipe (29) is provided on the outer wall of the tank (1) at the upper end.
7. A zero-discharge treatment device for concentrated brine from seawater desalination according to claim 2, characterized in that: The upper end face of the cover (2) is provided with a dosing tube (30).
8. A zero-discharge treatment device for concentrated brine from seawater desalination according to claim 4, characterized in that: A groove (31) is provided on the inner wall of the discharge pipe (13), and one end of the adjusting plate (23) is located inside the groove (31).