Automatic brine separation device

Abstract

The utility model relates to the technical field of extraction of lithium from brine, in particular to an automatic brine separation device which comprises a mounting seat and a stirring mechanism, a heating seat is arranged on the mounting seat, and a box body is arranged in the heating seat; the stirring mechanism comprises a rotating rod rotationally connected to the box body, a plurality of groups of first stirring blades and second stirring blades linearly distributed on the rotating rod, first scraping plates and second scraping plates arranged at the end parts of the first stirring blades, and a driving mechanism arranged on the box body; the driving mechanism comprises a first motor arranged on the box body, a first gear in driving connection with the first motor and a second gear coaxially arranged on the rotating rod, and the first gear is in meshed connection with the second gear. The lithium carbonate separation device not only can ensure the stability of brine during evaporation and crystallization, but also can improve the purity of lithium carbonate crystals after separation, is convenient for cleaning residues on the inner wall of the box body, and has good practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to brine lithium extraction technical field especially relates to a brine automatic separation device. BACKGROUND

[0002] Brine refers to the surface and underground water solution with salinity reaching 60g / L. In recent years, with the rapid development of portable electronic devices and electric vehicles, the application of lithium in new energy battery field is increasingly apparent. Lithium mainly exists in ores and salt lake brine resources, of which the lithium reserves in salt lake brine account for more than 70%. The salt lake brine lithium extraction process is simple, low in energy consumption, avoids the generation of a large amount of acid or alkaline solid waste, and is environmentally friendly.

[0003] Chinese patent publication No. CN211545968U discloses a device for extracting lithium carbonate from salt lake brine. The device directly acts on the closed evaporation crystallization tank through the heating device, effectively accelerating the crystallization of lithium carbonate. The closed filter pipe is provided, and the filter screen is used to filter the lithium carbonate crystals, collect the lithium carbonate crystals, effectively reduce the production process, and effectively improve the purity of the lithium carbonate crystals.

[0004] However, the above technical solution has the following disadvantages: the device lacks a device for stirring the brine during the evaporation crystallization process, resulting in over-saturation of the brine at the bottom or edge of the tank during the process, leading to local crystallization and the formation of large crystals or lumps, affecting the uniformity of crystallization and the purity of the product. Moreover, the solution may be locally overheated, increasing the risk of explosive boiling, and some substances may remain on the inner wall of the tank after processing, which is difficult to clean. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art and provides a brine automatic separation device that not only ensures the stability of brine evaporation crystallization but also improves the purity of lithium carbonate crystals after separation and facilitates the cleaning of residues on the inner wall of the tank, having good practicality.

[0006] The technical scheme of the utility model provides a brine automatic separation device, which comprises a mounting seat and a stirring mechanism. A heating seat is arranged on the mounting seat, and a tank is arranged in the heating seat. The stirring mechanism comprises a rotating shaft connected to the tank, a plurality of first stirring blades and second stirring blades linearly arranged on the rotating shaft, first scrapers and second scrapers arranged on the first stirring blades and the second stirring blades, respectively, and a driving mechanism arranged on the tank. The driving mechanism comprises a first motor arranged on the tank, a first gear drivingly connected to the first motor, and a second gear coaxially arranged on the rotating shaft. The first gear and the second gear are meshingly connected.

[0007] Preferably, an inlet funnel and a ventilation hole are arranged on the tank.

[0008] Preferably, the rotating rod is coaxially provided with two snap rings arranged in upper and lower directions, and the snap rings are in contact with the box.

[0009] Preferably, the mounting seat is provided with a collecting box, and the bottom of the box is provided with a communication pipe in communication with the collecting box.

[0010] Preferably, the inside of the collecting box is provided with a frame, and the frame is provided with a filter screen and four support blocks arranged in a rectangular array.

[0011] Preferably, the inside of the collecting box is provided with four support assemblies, each of which comprises a fixing cylinder arranged in the inside of the collecting box, a spring arranged in the inside of the fixing cylinder, and a support column arranged on the spring and in sliding connection with the fixing cylinder, and the support block is provided with a limiting groove for the insertion of the support column.

[0012] Preferably, the collecting box is provided with two symmetrical vibration mechanisms, each of which comprises a second motor arranged on the collecting box, a rotating shaft in driving connection with the second motor, a cam arranged on the rotating shaft, and two fixing blocks arranged on the frame, and the rotating shaft is in rotating connection with the collecting box.

[0013] Preferably, the rotating shaft is coaxially provided with a stabilizing ring, and the stabilizing ring is in rotating arrangement on the collecting box.

[0014] Compared with the prior art, the utility model has the beneficial technical effects that:

[0015] 1、The stirring mechanism is arranged, so that the brine is uniformly heated in the heating process, the local crystallization caused by the over-saturation of the bottom or edge of the box is avoided, the local boiling caused by the local overheating of the solution is avoided, part of the crystals attached to the inner wall of the box after being separated out are scraped off, the waste of materials is avoided, the difficulty of cleaning the inner wall of the box is improved, and good practicability is achieved.

[0016] 2、The vibration mechanism is arranged, so that the lithium carbonate crystals are laid flat on the filter screen, a small amount of brine attached to the crystals is accelerated to fall off through the vibration effect, and the purity of the obtained lithium carbonate crystals is improved. DETAILED DESCRIPTION

[0017] Figure 1 is a structural schematic view of an embodiment of the utility model;

[0018] Figure 2 is a structural schematic view of an embodiment of the utility model;

[0019] Figure 3 is a structural schematic view of a filtering mechanism;

[0020] Figure 4 is a partial structural sectional view of the filtering mechanism.

[0021] Reference numerals: 1. Mounting base; 2. Heating base; 3. Box body; 4. Feed hopper; 5. Rotating rod; 6. First stirring blade; 7. First scraper; 8. Second stirring blade; 9. Second scraper; 10. First motor; 11. First gear; 12. Second gear; 13. Snap ring; 14. Connecting pipe; 15. Collection box; 16. Frame body; 17. Filter screen; 18. Support block; 19. Fixing cylinder; 20. Spring; 21. Support column; 22. Fixing block; 23. Second motor; 24. Rotating shaft; 25. Cam; 26. Stabilizing ring. Detailed Implementation

[0022] Example 1

[0023] like Figures 1-4 As shown, the automatic brine separation device proposed in this embodiment includes a mounting base 1 and a stirring mechanism; a heating base 2 is provided on the mounting base 1, and a box 3 is provided inside the heating base 2. A feeding funnel 4 and a vent hole are provided on the box 3. The feeding funnel 4 is used to add brine into the box 3, and then the brine is heated and evaporated by the heating base 2 to obtain lithium carbonate crystals. The vent hole is used to ensure the stability of the internal pressure of the box 3.

[0024] like Figure 1 and Figure 2 As shown, the stirring mechanism includes a rotating rod 5 rotatably connected to the housing 3, multiple sets of first stirring blades 6 and second stirring blades 8 linearly distributed on the rotating rod 5, a first scraper 7 and a second scraper 9 respectively disposed on the first stirring blades 6 and the second stirring blades 8, and a driving mechanism disposed on the housing 3. The driving mechanism includes a first motor 10 disposed on the housing 3, a first gear 11 drivenly connected to the first motor 10, and a second gear 12 coaxially disposed on the rotating rod 5. The first gear 11 and the second gear 12 are meshed together.

[0025] Two retaining rings 13 are coaxially arranged on the rotating rod 5, which are distributed vertically. The retaining rings 13 are in contact with the housing 3 and are used to ensure the stability of the rotating rod 5 when it rotates.

[0026] In this embodiment, when the brine is evaporated and crystallized, the first motor 10 is started to drive the first gear 11 to mesh with the second gear 12, and then the second gear 12 drives the rotating rod 5 to rotate, and the rotating rod 5 drives the first stirring blade 6 and the second stirring blade 8 to stir the brine, so that the brine is uniformly heated during heating, avoiding over-saturation at the bottom or edge of the box 3, resulting in local crystallization, forming larger crystals or lumps, affecting the uniformity of crystallization and the purity of the product, and even possibly causing the solution to overheat locally, increasing the risk of explosive boiling. The first scraper 7 and the second scraper 9 arranged in cooperation can scrape off part of the crystals attached to the inner wall of the box 3 after being precipitated, not only avoiding waste of materials, but also improving the difficulty of cleaning the inner wall of the box 3, and having good practicability.

[0027] Example two

[0028] As shown in Figure 1 and Figure 3 , the brine automatic separation device proposed in this embodiment, compared with example one, in this embodiment, the mounting seat 1 is provided with a collection box 15, the bottom of the box 3 is provided with a communication pipe 14 communicating with the collection box 15, the inside of the collection box 15 is provided with a frame 16, the frame 16 is provided with a filter screen 17 and four rectangular array distributed support blocks 18.

[0029] As shown in Figure 4 , the inside of the collection box 15 is provided with four support assemblies, the support assembly includes a fixed cylinder 19 arranged inside the collection box 15, a spring 20 arranged inside the fixed cylinder 19, and a support column 21 arranged on the spring 20 and in sliding connection with the fixed cylinder 19, the support block 18 is provided with a limiting groove for inserting the support column 21, the support column 21 is inserted into the limiting groove to avoid left and right deviation of the frame 16 when vibrating, the spring 20 is used to buffer the impact force, thereby improving the service life of the structure, and reducing the noise when vibrating.

[0030] As shown in Figure 3 , the collection box 15 is provided with two symmetrical vibration mechanisms, the vibration mechanism includes a second motor 23 arranged on the collection box 15, a rotating shaft 24 in driving connection with the second motor 23, a cam 25 arranged on the rotating shaft 24, and two fixed blocks 22 arranged on the frame 16, the rotating shaft 24 is rotatably connected to the collection box 15, and the rotating shaft 24 is coaxially provided with a stabilizing ring 26, and the stabilizing ring 26 is rotatably arranged on the collection box 15.

[0031] In this embodiment, when the lithium carbonate crystals are completely precipitated by evaporation crystallization, the control valve (not shown) at the bottom of the box 3 is opened, the crystals pass through the communication pipe 14 into the frame body 16 and fall on the filter screen 17, and the second motor 23 is started to drive the rotating shaft 24 to rotate, the rotating shaft 24 drives the cam 25 to rotate, the cam 25 continuously pushes the fixed block 22 upward in the rotating process, and the frame body 16 is continuously vibrated by cooperating with the gravity of the fixed block 22 itself, so that the crystals which will be accumulated on the filter screen 17 are laid on the filter screen 17, and a small amount of brine attached to the crystals is accelerated to fall off through vibration, thereby improving the purity of the obtained lithium carbonate crystals.

[0032] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, various changes can be made within the knowledge range possessed by the technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. A device for automatic separation of brine, characterized in that, The utility model relates to a heating seat (2) is arranged on the mounting base (1), the inside of heating seat (2) is provided with box (3), and the box (3) is provided with the first stirring blade (6) and the second stirring blade (8) of the first scraping plate (7) and the second scraping plate (9) of the linear distribution of the first stirring blade (6) on the rotating rod (5) of the stirring mechanism, and the drive mechanism of the first motor (10) and the first gear (11) and the second gear (12) of the second motor (23) and the fixed block (22) of the second scraping plate (9) of the second stirring blade (8) is arranged on the box (3), and the first gear (11) and the second gear (12) are engaged connection. The box (3) is provided with the feeding hopper (4) and the air hole. The rotating rod (5) is coaxially provided with two upper and lower distribution snap rings (13), and the snap ring (13) is in contact with the box (3).

2. The automatic brine separation device according to claim 1, characterized in that The mounting base (1) is provided with a collecting box (15), and the bottom of the box (3) is provided with a communication pipe (14) in communication with the collecting box (15).

3. The automatic brine separation device according to claim 1, characterized in that, The inside of the collecting box (15) is provided with a frame (16), and the frame (16) is provided with a filter screen (17) and four rectangular array distributed support blocks (18).

4. The automatic brine separation device according to claim 1, characterized in that, The inside of the collecting box (15) is provided with four support assemblies, the support assembly includes a fixed cylinder (19) arranged in the inside of the collecting box (15), a spring (20) arranged in the inside of the fixed cylinder (19), and a support column (21) arranged on the spring (20) and in sliding connection with the fixed cylinder (19), and the support block (18) is provided with a limiting groove for inserting the support column (21).

5. The automatic brine separation device according to claim 4, characterized in that The collecting box (15) is provided with two symmetrical distributed vibration mechanisms, the vibration mechanism includes the second motor (23) arranged on the collecting box (15), the rotating shaft (24) in driving connection with the second motor (23), the cam (25) arranged on the rotating shaft (24), and two fixed blocks (22) arranged on the frame (16), and the rotating shaft (24) is rotatably connected to the collecting box (15).

6. The automatic brine separation device according to claim 5, characterized in that The rotating shaft (24) is coaxially provided with a stabilizing ring (26), and the stabilizing ring (26) is rotatably arranged on the collecting box (15).

7. The automatic brine separation device according to claim 5, characterized in that ​ 8. The automatic brine separation device according to claim 7, characterized in that ​

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