Lithium extraction device for salt production mother liquor brine

Abstract

The utility model discloses a salt-making mother liquor brine lithium extraction device which comprises an evaporation barrel, a discharging pipe fixedly connected to the bottom side of the evaporation barrel, a heating pipe arranged on the evaporation barrel, an absorption assembly arranged on the evaporation barrel and a stirring assembly arranged in the evaporation barrel, and a threaded groove matched with a threaded column is formed in the bottom end face of the stirring assembly. The position of the first scraping plate is adjusted, the situation that a gap is generated between the first scraping plate and the evaporation barrel after the first scraping plate is used and abraded for a long time, and consequently the scraping effect is affected is avoided, meanwhile, direct replacement of the first scraping plate is avoided, and therefore the service life of the first scraping plate is prolonged, resources are saved, and a rotating rod is screwed; a rotating rod rotates to drive a rectangular rod and a threaded column to rotate, the threaded column is screwed out of a threaded groove, so that the threaded column and the stirring assembly are detached and separated, then a second scraping plate is driven to move upwards to be detached and replaced, and the material scraping effect is guaranteed.

Description

A lithium extraction device for brine from salt production mother liquor Technical Field

[0001] This application relates to the field of lithium extraction technology, and more specifically, to a lithium extraction device for brine from salt production mother liquor. Background Technology

[0002] Lithium in salt lakes is generally extracted from the brine left over after sodium and potassium production. The lithium extraction process is basically the same for different types of salt lakes: the brine is enriched with lithium, then evaporated, magnesium removed, concentrated, and lithium ions are extracted to produce lithium carbonate.

[0003] A search revealed that the patent application CN222173088U discloses "an apparatus for extracting lithium carbonate from brine in salt lake chemical industry, including an evaporation tank, with a telescopic rod fixedly connected to the top of the outer wall of the evaporation tank... In this utility model, the telescopic rod can be driven to move the stirring rod upward, and the drive motor can drive the scraper to rotate to scrape off the lithium carbonate crystals and discharge them from the discharge pipe. The stirring rod can also drive the blade to rotate, thus crushing the lithium carbonate crystals and directly obtaining lithium carbonate powder, thereby improving the efficiency of the operation." However, after long-term use, the scraper of this application develops a gap between the scraper and the evaporation tank due to scraper wear, which affects the scraping effect.

[0004] To address the aforementioned problems, this application provides a lithium extraction device for brine from salt production mother liquor. Summary of the Invention

[0005] One objective of this application is to provide a lithium extraction device for brine from salt production mother liquor, comprising an evaporation tank, a discharge pipe fixedly connected to the bottom side of the evaporation tank, a heating pipe disposed on the evaporation tank, an absorption assembly disposed on the evaporation tank, and a stirring assembly disposed inside the evaporation tank. Multiple support columns are fixedly connected to the outer side of the evaporation tank, a cover plate is disposed on the top of the evaporation tank, electric push rods are symmetrically fixedly connected to the outer side of the evaporation tank, a support plate is fixedly connected to the top of the electric push rod, a first scraper and a second scraper are disposed on the inner wall of the evaporation tank, a fixed rod is fixedly connected to the outer side of the stirring assembly, a sliding rod is slidably connected to the fixed rod, a fixing bolt is disposed on the fixed rod, a rotating rod and a sealing plate are disposed inside the discharge pipe, a rectangular rod is fixedly connected to the top of the rotating rod, the second scraper is sleeved on the outer side of the rectangular rod, a threaded column is fixedly connected to the top of the rectangular rod, and a threaded groove adapted to the threaded column is formed on the bottom end face of the stirring assembly.

[0006] Furthermore, the fixed rod is symmetrically provided with sliding grooves, and the sliding rod is slidably inserted into the inside of the sliding grooves.

[0007] Furthermore, the top of the fixing rod is symmetrically provided with threaded holes, and fixing bolts are inserted into the threads of the threaded holes.

[0008] Furthermore, the threaded hole is connected to the sliding groove, and the opposite ends of the two sliding rods are respectively fixedly connected to the two first scrapers.

[0009] Furthermore, the second scraper has a mounting hole in the middle, and a fixing post is fixedly connected inside the mounting hole. The fixing post has a rectangular hole in the middle, and the rectangular rod is inserted into the rectangular hole.

[0010] Furthermore, the support plate is fixedly connected to the outer side of the cover plate, and an annular groove is provided on the top of the evaporation tank. A matching annular sealing block is provided inside the annular groove, and the annular sealing block is fixedly connected to the bottom end face of the cover plate.

[0011] Furthermore, the sealing plate is fixedly sleeved on the outside of the rotating rod, and multiple blades are fixedly connected to the outside of the rotating rod.

[0012] The beneficial effects of this application are:

[0013] When the first and second scrapers become worn and affect the scraping effect, the electric push rod extends to move the cover plate upward, providing operating space for the fixing bolts and rotating rod. Then, the fixing bolts are loosened to release the sliding rod, causing it to move inside the sliding groove, thereby moving the first scraper to adjust its position. This prevents gaps from forming between the first scraper and the evaporation tank due to wear after prolonged use, which would affect the scraping effect. It also avoids directly replacing the first scraper, extending its service life and saving resources. Tightening the rotating rod rotates the rectangular rod and threaded column, unscrewing the threaded column from the threaded groove, thus separating it from the mixing assembly. The second scraper can then be moved upward for removal and replacement, ensuring the scraping effect is maintained. Attached Figure Description

[0014] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.

[0015] In the attached diagram:

[0016] Figure 1 is a schematic diagram of the overall structure of this application;

[0017] Figure 2 is a cross-sectional view of this application;

[0018] Figure 3 is a partial structural diagram of this application;

[0019] Figure 4 is an enlarged schematic diagram of the structure of region A in Figure 3 of this application;

[0020] Figure 5 is a schematic diagram of the structure of Figure 3 from another perspective in this application.

[0021] Explanation of the labels in the diagram:

[0022] 1. Evaporation tank; 2. Electric push rod; 3. Support plate; 4. Cover plate; 5. Absorption assembly; 6. Stirring assembly; 7. Heating tube; 8. First scraper; 9. Sliding rod; 10. Fixed rod; 11. Sliding groove; 12. Fixing bolt; 13. Second scraper; 14. Discharge pipe; 15. Rotating rod; 16. Sealing plate; 17. Rectangular rod; 18. Threaded column; 19. Fixed column; 20. Rectangular hole; 21. Threaded groove; 22. Annular sealing block. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] Example:

[0027] Please refer to Figures 1, 2, 3, 4, and 5. This application discloses a lithium extraction device for brine from salt production mother liquor, including an evaporation tank 1, a discharge pipe 14 fixedly connected to the bottom side of the evaporation tank 1, a heating pipe 7 disposed on the evaporation tank 1, an absorption assembly 5 disposed on the evaporation tank 1, and a stirring assembly 6 disposed inside the evaporation tank 1. The gas outlet pipe of the absorption assembly 5 passes through the side wall of the evaporation tank 1 and communicates with the interior of the evaporation tank 1, and the gas outlet pipe is located between the annular groove and the heating pipe 7. The stirring assembly 6 and the absorption assembly 5 are both prior art, and their structure and working principle are based on a device for extracting lithium carbonate from salt lake brine in salt lake chemical industry with publication (announcement) number CN222173088U, which will not be described in detail here.

[0028] Multiple support columns are fixedly connected to the outside of the evaporation tank 1, and the multiple support columns are arranged in a ring array. A cover plate 4 is provided on the top of the evaporation tank 1. A feed pipe is provided on the cover plate 4, and a valve is installed on the feed pipe. Electric push rods 2 are symmetrically fixedly connected to the outside of the evaporation tank 1. When the electric push rod 2 extends, it drives the cover plate 4 to move upward. The upward movement of the cover plate 4 drives the stirring assembly 6, the first scraper 8, and the second scraper 13 to move upward, thereby facilitating the operation of the fixing bolt 12 and the rotating rod 15. It also facilitates the cleaning of the inside of the evaporation tank 1 and the maintenance of the internal parts of the evaporation tank 1. A support plate 3 is fixedly connected to the top of the electric push rod 2. The support plate 3 is fixedly connected to the outside of the cover plate 4. The inner wall of the evaporation tank 1 is provided with the first scraper 8 and the second scraper 13.

[0029] A fixed rod 10 is fixedly connected to the outside of the stirring assembly 6. A sliding rod 9 is slidably connected to the fixed rod 10. Sliding grooves 11 are symmetrically opened on the fixed rod 10. The sliding rod 9 is slidably inserted into the sliding groove 11. A fixing bolt 12 is provided on the fixed rod 10. Loosening the fixing bolt 12 releases the fixing of the sliding rod 9, causing the sliding rod 9 to move inside the sliding groove 11, thereby driving the first scraper 8 to move. This adjusts the position of the first scraper 8, preventing the first scraper 8 from developing a gap with the evaporation tank 1 due to wear after long-term use, which would affect the scraping effect. At the same time, it avoids the need to directly replace the first scraper 8, thereby extending the service life of the first scraper 8 and saving resources.

[0030] The top of the fixed rod 10 is symmetrically provided with threaded holes, and a fixing bolt 12 is inserted into the threaded hole. The threaded hole is connected to the sliding groove 11. The opposite ends of the two sliding rods 9 are respectively fixedly connected to the two first scrapers 8. The discharge pipe 14 is provided with a rotating rod 15 and a sealing plate 16. A rectangular rod 17 is fixedly connected to the top of the rotating rod 15. The second scraper 13 is sleeved on the outside of the rectangular rod 17. The middle of the second scraper 13 is provided with an installation hole. A fixing post 19 is fixedly connected inside the installation hole. A rectangular hole 20 is provided in the middle, and a rectangular rod 17 is inserted into the rectangular hole 20. A threaded post 18 is fixedly connected to the top of the rectangular rod 17. A threaded groove 21 that matches the threaded post 18 is provided on the bottom end face of the mixing assembly 6. Turning the rotating rod 15 causes the rectangular rod 17 and the threaded post 18 to rotate, thus unscrewing the threaded post 18 from the inside of the threaded groove 21, thereby disassembling and separating the threaded post 18 from the mixing assembly 6. Then, the second scraper 13 can be moved upward to disassemble and replace it, thus ensuring the scraping effect.

[0031] Please refer to Figure 2. An annular groove is provided on the top of the evaporator 1. A matching annular sealing block 22 is provided inside the annular groove. The annular sealing block 22 is fixedly connected to the bottom end face of the cover plate 4. When the material needs to be discharged by the discharge pipe 14 and the cover plate 4 is raised, the cover plate 4 is raised and drives the annular sealing block 22 to move upward in the annular groove. At the same time, the annular sealing block 22 is prevented from moving continuously and detaching from the evaporator 1, thereby ensuring the sealing effect.

[0032] Please refer to Figures 2, 3 and 5. The sealing plate 16 is fixedly sleeved on the outside of the rotating rod 15, which drives the stirring assembly 6 to rise, thereby driving the sealing plate 16 to rise. The sealing plate 16 is separated from the discharge pipe 14 when it is raised, and the material can be discharged from the discharge pipe 14. Multiple blades are fixedly connected to the outside of the rotating rod 15. When the material falls through the discharge pipe 14, the material can be crushed by the rotation of the blades.

[0033] The implementation principle of this application embodiment is as follows: The working principle of scraping, crushing of materials and use in conjunction with absorption component 5 in this application refers to the device for extracting lithium carbonate from salt lake brine in salt lake chemical industry with publication (announcement) number CN222173088U, which will not be described in detail here;

[0034] When the first scraper 8 and the second scraper 13 are worn and their scraping effect is affected, the control electric push rod 2 extends and drives the cover plate 4 to move upward. The upward movement of the cover plate 4 drives the stirring assembly 6, the first scraper 8 and the second scraper 13 to move upward, thereby providing operating space for the operating fixing bolt 12 and the rotating rod 15. Then, the fixing bolt 12 is loosened to release the fixation of the sliding rod 9, and the sliding rod 9 moves inside the sliding groove 11, thereby driving the first scraper 8 to move. This adjusts the position of the first scraper 8, preventing the first scraper 8 from developing a gap with the evaporation tank 1 after long-term wear, which would affect the scraping effect. At the same time, it avoids the need to directly replace the first scraper 8, thereby extending the service life of the first scraper 8 and saving resources.

[0035] Turning the rotating rod 15 causes the rectangular rod 17 and the threaded column 18 to rotate, thus unscrewing the threaded column 18 from the inside of the threaded groove 21, thereby disassembling and separating the threaded column 18 from the mixing assembly 6. Then, the second scraper 13 can be moved upward to disassemble and replace it, thus ensuring the scraping effect.

[0036] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and application concept of this application, should be included within the scope of protection of this application.

Claims

1. A lithium extraction device for brine from salt production mother liquor, comprising an evaporation tank (1), a discharge pipe (14) fixedly connected to the bottom side of the evaporation tank (1), a heating pipe (7) disposed on the evaporation tank (1), an absorption assembly (5) disposed on the evaporation tank (1), and a stirring assembly (6) disposed inside the evaporation tank (1), characterized in that: Multiple support columns are fixedly connected to the outside of the evaporation tank (1). A cover plate (4) is provided on the top of the evaporation tank (1). Electric push rods (2) are symmetrically fixedly connected to the outside of the evaporation tank (1). A support plate (3) is fixedly connected to the top of the electric push rods (2). A first scraper (8) and a second scraper (13) are provided on the inner wall of the evaporation tank (1). A fixed rod (10) is fixedly connected to the outside of the stirring assembly (6). A sliding rod is slidably connected to the fixed rod (10). (9) A fixing bolt (12) is provided on the fixing rod (10). A rotating rod (15) and a sealing plate (16) are provided inside the discharge pipe (14). A rectangular rod (17) is fixedly connected to the top of the rotating rod (15). The second scraper (13) is sleeved on the outside of the rectangular rod (17). A threaded column (18) is fixedly connected to the top of the rectangular rod (17). A threaded groove (21) that matches the threaded column (18) is opened on the bottom end face of the stirring assembly (6).

2. The device for extracting lithium from a salt mother liquor brine according to claim 1, characterized in that: The fixed rod (10) is symmetrically provided with sliding grooves (11), and the sliding rod (9) is slidably inserted into the sliding groove (11).

3. The device for extracting lithium from a salt mother liquor brine according to claim 1, characterized in that: The top of the fixing rod (10) is symmetrically provided with threaded holes, and a fixing bolt (12) is inserted into the threaded hole.

4. The lithium extraction device for brine from salt production mother liquor according to claim 3, characterized in that: The threaded hole is connected to the sliding groove (11), and the opposite ends of the two sliding rods (9) are respectively fixedly connected to the two first scrapers (8).

5. The lithium extraction device for brine from salt production mother liquor according to claim 1, characterized in that: The second scraper (13) has an installation hole in the middle, and a fixing post (19) is fixedly connected inside the installation hole. A rectangular hole (20) is opened in the middle of the fixing post (19), and the rectangular rod (17) is inserted into the rectangular hole (20).

6. The device for extracting lithium from a salt mother liquor brine according to claim 1, characterized in that: The support plate (3) is fixedly connected to the outer side of the cover plate (4). The top of the evaporation tank (1) is provided with an annular groove. The annular groove is provided with a matching annular sealing block (22), and the annular sealing block (22) is fixedly connected to the bottom end face of the cover plate (4).

7. The device for extracting lithium from a salt mother liquor brine according to claim 1, characterized in that: The sealing plate (16) is fixedly sleeved on the outside of the rotating rod (15), and multiple blades are fixedly connected to the outside of the rotating rod (15).

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