Device for recovering adsorbent in lithium extraction of salt lake ultralow lithium-containing brine
By designing a device including a halogen discharge pipe and adsorption equipment during the lithium extraction process of the salt lake, using components such as the retention tank, anti-impact baffle, adsorbent recovery mesh and capture tank, the problem of low adsorbent recovery efficiency in ultra-low lithium-containing brine is solved, and efficient recovery of adsorbents and reduced production costs are achieved.
Patent Information
- Application Number
- CN202422131490.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-30
AI Technical Summary
During the lithium extraction process of salt lakes, the efficiency of recycling adsorbents in ultra-low lithium-containing brine is low, resulting in waste of resources and high production costs.
A device including a halogen discharge pipe and an adsorption device is designed. By installing a recycling device at the adsorption tail fluid drain outlet, the components such as the interception tank, anti-impact baffle, adsorbent recovery mesh and capture tank are used to achieve efficient recovery of adsorbent.
It significantly improves the recycling efficiency of adsorbents, reduces the production costs of enterprises, and realizes efficient recycling and utilization of adsorbents.
Smart Images
Figure CN223016565U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of extracting lithium from salt lake brine, and particularly relates to a device for recovering adsorbents in extracting lithium from ultra-low lithium-containing brine in a salt lake. Background Art
[0002] Lithium is an important industrial raw material. Global lithium resources mainly exist in salt lake brine and ores. With the rapid development of industries such as global electric vehicles, lithium resources are particularly important in the market. In particular, further research on salt lake lithium extraction technology is indispensable for the demand of lithium resources. The development of salt lake lithium extraction technology in China is particularly prominent. The lithium resource content in domestic salt lakes is low and there are many impurities. With the development of salt lake lithium extraction technology, recovering small broken particle adsorbents in the recovery system is an important means to achieve the environmental protection and sustainable development of enterprises, and can improve the recovery and utilization rate of adsorbents. For this reason, we propose a device for recovering adsorbents in extracting lithium from ultra-low lithium-containing brine in a salt lake. Content of the Utility Model
[0003] The main purpose of the utility model is to provide a device for recovering adsorbents in extracting lithium from ultra-low lithium-containing brine in a salt lake, which can effectively solve the problems in the background art.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a device for recovering adsorbents in extracting lithium from ultra-low lithium-containing brine in a salt lake, including a brine discharge pipe and an adsorption device. One end outer surface of the brine discharge pipe is detachably connected with a switch valve A, and the other end outer surface of the brine discharge pipe is provided with a switch valve B. One end outer surface of the switch valve A is detachably connected with a retention tank A, and one end outer surface of the switch valve B is detachably connected with a retention tank B. Impact-proof baffles and adsorbent recovery meshes are arranged in the middle of the retention tank A and the retention tank B. A communication valve is arranged between the retention tank A and the retention tank B. A capture tank is arranged on one side of the retention tank A and the retention tank B. A flushing pipeline is arranged between the capture tank and the retention tank A and the retention tank B. A capture tank adsorbent recovery net is detachably connected to the middle of the capture tank. The lower end outer surface of the adsorbent recovery mesh is provided with support columns and inclined support columns, and the support columns are located on one side of the inclined support columns.
[0005] Preferably, the brine discharge pipe is connected to the adsorption device, and the number of the adsorption devices is ten groups.
[0006] Preferably, the capture tank is 1 m high, 1 m wide and 5 m long, and the capture tank adsorbent recovery net 11 is 1 m high and 1 m wide.
[0007] Preferably, the adsorbent recovery mesh is fixedly connected to the retention tank A and the retention tank B through the support columns and the inclined support columns, and the number of the support columns is four groups.
[0008] Preferably, the impact-resistant baffles are all welded to the intercepting tank A and the intercepting tank B. The length of the impact-resistant baffle is 1 m, the height is 1.5 m, and the distance between the impact-resistant baffle and the adsorbent recovery mesh body is 2 m.
[0009] Preferably, the specification of the adsorbent recovery mesh is 50 mesh, and the specification of the brine discharge pipe is DN1000.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] By installing a recovery device at the drainage outlet of the adsorption tail liquid, the recovery efficiency of the adsorbent is greatly improved through this recovery device, and the production cost of the enterprise is reduced. Description of the Drawings
[0012] As Figure 1 shown is the overall structure schematic diagram of the recovery of the utility model;
[0013] As Figure 2 shown is the intercepting tank structure schematic diagram of the utility model;
[0014] As Figure 3 shown is the capture tank structure schematic diagram of the utility model.
[0015] In the figure: 1. Brine discharge pipe; 2. Adsorption equipment; 3. Switch valve A; 4. Switch valve B; 5. Intercepting tank A; 6. Intercepting tank B; 7. Impact-resistant baffle; 8. Adsorbent recovery mesh body; 9. Connecting valve; 10. Capture tank; 11. Adsorbent recovery mesh of the capture tank; 12. Flushing pipeline; 13. Support column; 14. Inclined support column. Detailed Embodiments
[0016] In order to enable those skilled in the art to better understand the technical solutions of the utility model, the following will further introduce the utility model in detail in conjunction with the drawings.
[0017] As Figures 1-3As shown in the figure, a device for recovering adsorbent in the extraction of lithium from ultra-low lithium-containing brine in salt lakes provided by an embodiment of the present utility model includes a brine discharge pipe 1 and an adsorption device 2. One end outer surface of the brine discharge pipe 1 is detachably connected with a switch valve A 3, and the other end outer surface of the brine discharge pipe 1 is provided with a switch valve B 4. One end outer surface of the switch valve A 3 is detachably connected with a retention tank A 5, and one end outer surface of the switch valve B 4 is detachably connected with a retention tank B 6. Impact-resistant baffles 7 and adsorbent recovery mesh bodies 8 are arranged in the middle of the retention tank A 5 and the retention tank B 6. A communication valve 9 is arranged between the retention tank A 5 and the retention tank B 6. A capture tank 10 is arranged on one side of the retention tank A 5 and the retention tank B 6. A flushing pipeline 12 is arranged between the capture tank 10 and the retention tank A 5 and the retention tank B 6. A capture tank adsorbent recovery mesh 11 is detachably connected to the middle of the capture tank 10. Support columns 13 and inclined support columns 14 are arranged on the lower end outer surface of the adsorbent recovery mesh body 8, and the support column 13 is located on one side of the inclined support column 14.
[0018] Specifically, in this embodiment, it includes a brine discharge pipe 1 and an adsorption device 2. One end outer surface of the brine discharge pipe 1 is detachably connected with a switch valve A 3, and the other end outer surface of the brine discharge pipe 1 is provided with a switch valve B 4. One end outer surface of the switch valve A 3 is detachably connected with a retention tank A 5, and one end outer surface of the switch valve B 4 is detachably connected with a retention tank B 6. Impact-resistant baffles 7 and adsorbent recovery mesh bodies 8 are arranged in the middle of the retention tank A 5 and the retention tank B 6. A communication valve 9 is arranged between the retention tank A 5 and the retention tank B 6. A capture tank 10 is arranged on one side of the retention tank A 5 and the retention tank B 6. A flushing pipeline 12 is arranged between the capture tank 10 and the retention tank A 5 and the retention tank B 6. A capture tank adsorbent recovery mesh 11 is detachably connected to the middle of the capture tank 10. Support columns 13 and inclined support columns 14 are arranged on the lower end outer surface of the adsorbent recovery mesh body 8, and the support column 13 is located on one side of the inclined support column 14. After the adsorption device 2 adsorbs, the tail liquid is discharged into the brine discharge pipe 1, and the tail liquid enters the retention tank A 5 or the retention tank B 6 through the brine discharge pipe 1 via the switch valve A 3 or the switch valve B 4; after entering the retention tank, most of the pressure is released by the impact-resistant baffle 7, and the adsorbent is blocked by the adsorbent recovery mesh body 8. The inclined support column 14 and the support column 13 are arranged at the lower end of the recovery mesh to block the adsorbent lost in the system; if the liquid level in the retention tank A 5 rises rapidly, indicating that the adsorbent can be recovered, the switch valve A 3 and the switch valve B 4 need to be switched to change the retention tank into which the adsorption tail liquid enters; after the switching is completed, the valve leading to the capture tank 10 below the left end of the retention tank A 5 is opened, and the adsorbent on the adsorbent recovery mesh body 8 is washed into it through the flushing pipeline 12; it is recovered through the capture tank adsorbent recovery mesh 11. After the recovery work is completed, the valve communicating with the capture tank 10 is closed and used as a standby retention tank. When the adsorbent in the retention tank B 6 can be recovered, the switching is carried out again to achieve a state of one standby and one use without affecting the normal operation of production.
[0019] The device for recovering adsorbent in the extraction of lithium from ultra-low lithium-containing brine in salt lakes provided by the utility model is such that the adsorption equipment 2 discharges the tail liquid into the brine discharge pipe 1 after adsorption. The tail liquid enters the intercepting tank A 5 or the intercepting tank B 6 through the brine discharge pipe 1 via the on-off valve A 3 or the on-off valve B 4. After entering the intercepting tank, most of the pressure is released by the anti-shock baffle 7, and the adsorbent is blocked by the adsorbent recovery mesh body 8. The lower end of the recovery mesh is provided with inclined support columns 14 and support columns 13, so that the adsorbent lost in the system can be blocked. If the liquid level in the intercepting tank A 5 rises rapidly, it indicates that the adsorbent can be recovered, and then the on-off valve A 3 and the on-off valve B 4 need to be switched to change the intercepting tank into which the adsorption tail liquid enters. After the switching is completed, the valve leading to the capture tank 10 at the lower left end of the intercepting tank A 5 is opened, and the adsorbent on the adsorbent recovery mesh body 8 is flushed into it through the flushing pipeline 12. It is recovered through the adsorbent recovery mesh 11 of the capture tank. After the recovery work is completed, the valve communicating with the capture tank 10 is closed, and it serves as a standby intercepting tank. When the adsorbent in the intercepting tank B 6 can be recovered, the switching is carried out again to achieve a state of one standby and one in use, and the normal operation of production is not affected.
[0020] In an embodiment provided by the utility model, the brine discharge pipe 1 is connected to the adsorption equipment 2. The number of the adsorption equipment 2 is ten groups. After adsorption, the adsorption equipment 2 discharges the tail liquid into the brine discharge pipe 1, and its average flow rate is 3000 - 5000 m3 / h.
[0021] In another embodiment provided by the utility model, the capture tank 10 is 1 m high, 1 m wide, and 5 m long. The adsorbent recovery mesh 11 of the capture tank is 1 m high and 1 m wide, and the distance between the adsorbent recovery mesh 11 of the capture tank and the rear wall of the capture tank 10 is 1.5 m.
[0022] In still another embodiment provided by the utility model, the adsorbent recovery mesh body 8 is fixedly connected to both the intercepting tank A 5 and the intercepting tank B 6 through the support columns 13 and the inclined support columns 14. The number of the support columns 13 is four groups. The support columns 13 and the inclined support columns 14 are mainly used for fixing and supporting the adsorbent recovery mesh body 8 during use, and the stability of the adsorbent recovery mesh body 8 can be ensured.
[0023] In an embodiment provided by the utility model, the anti-shock baffle 7 is welded to both the intercepting tank A 5 and the intercepting tank B 6. The length of the anti-shock baffle 7 is 1 m and the height is 1.5 m, and the distance between the anti-shock baffle 7 and the adsorbent recovery mesh body 8 is 2 m. The anti-shock baffle 7 can prevent the damage of the adsorbent recovery mesh body 8 caused by excessive flow rate of the adsorption tail liquid during use.
[0024] In another embodiment provided by the utility model, the specification of the adsorbent recovery mesh 8 is 50 meshes, and the specification of the brine discharge pipe 1 is DN1000. The brine discharge pipe 1 has a tee structure, which is convenient for shunting the tail liquid.
[0025] It should be noted that the present utility model is a device for recovering adsorbents in the extraction of lithium from ultra-low lithium-containing brine in salt lakes. When in use, the adsorption equipment 2 discharges the tail liquid into the brine discharge pipe 1 after adsorption, and the tail liquid enters the intercepting tank A 5 or the intercepting tank B 6 through the brine discharge pipe 1 via the switching valve A 3 or the switching valve B 4; after entering the intercepting tank, most of the pressure is released by the anti-shock baffle 7, and the adsorbent is blocked by the adsorbent recovery mesh body 8. An inclined support column 14 and a support column 13 are provided at the lower end of the recovery mesh, so that the adsorbent lost in the system can be blocked; if the liquid level in the intercepting tank A 5 rises rapidly, indicating that the adsorbent can be recovered, it is necessary to switch the switching valve A 3 and the switching valve B 4 to change the intercepting tank into which the adsorption tail liquid enters; after the switching is completed, the valve leading to the capture tank 10 below the left end of the intercepting tank A5 is opened, and the adsorbent on the adsorbent recovery mesh body 8 is flushed into it through the flushing pipeline 12; it is recovered through the adsorbent recovery mesh 11 of the capture tank. After the recovery work is completed, the valve communicating with the capture tank 10 is closed and used as a standby intercepting tank. When the adsorbent in the intercepting tank B 6 can be recovered, the switching is carried out again to achieve a state of one standby and one use, and it does not affect the normal operation of production, which is relatively practical.
[0026] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present utility model and do not limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A device for recovering an adsorbent during lithium extraction from ultra-low lithium-containing brine in a salt lake, comprising a brine discharge pipe (1) and an adsorption device (2), characterized in that: The outer surface of one end of the brine exhaust pipe (1) is detachably connected to a switch valve A (3), and the outer surface of the other end of the brine exhaust pipe (1) is provided with a switch valve B (4). The outer surface of one end of the switch valve A (3) is detachably connected to a retention tank A (5), and the outer surface of one end of the switch valve B (4) is detachably connected to a retention tank B (6). The middle parts of the retention tank A (5) and the retention tank B (6) are both provided with an anti-impact baffle (7) and an adsorbent recovery net (8). The retention tank A (5) and the retention tank B (6) are connected to each other. A connecting valve (9) is provided between the two adsorbent recovery nets (8); a capture tank (10) is provided on one side of the interception tank A (5) and the interception tank B (6); a flushing pipeline (12) is provided between the capture tank (10) and the interception tank A (5) and the interception tank B (6); a capture tank adsorbent recovery net (11) is detachably connected to the middle of the capture tank (10); a support column (13) and an inclined support column (14) are provided on the outer surface of the lower end of the adsorbent recovery net body (8); the support column (13) is located on one side of the inclined support column (14).
2. The device for recovering adsorbent from lithium extraction from ultra-low lithium brine in salt lake according to claim 1, characterized in that: The brine exhaust pipe (1) is connected to the adsorption device (2), and the number of the adsorption devices (2) is ten groups.
3. The device for recovering adsorbent from lithium extraction from ultra-low lithium brine in salt lake according to claim 1, characterized in that: The capture tank (10) is 1 m high, 1 m wide and 5 m long, and the capture tank additive recovery net (11) is 1 m high and 1 m wide.
4. The device for recovering adsorbent from lithium extraction from ultra-low lithium brine in salt lake according to claim 1, characterized in that: The adsorbent recovery net (8) is fixedly connected to the interception tank A (5) and the interception tank B (6) via supporting columns (13) and inclined supporting columns (14), and the number of the supporting columns (13) is four groups.
5. The device for recovering adsorbent from lithium extraction from ultra-low lithium-containing brine in salt lake according to claim 1, characterized in that: The anti-impact baffles (7) are welded to the interception tank A (5) and the interception tank B (6), the anti-impact baffles (7) are 1 m long and 1.5 m high, and the distance between the anti-impact baffles (7) and the adsorbent recovery net (8) is 2 m.
6. The device for recovering adsorbent from lithium extraction from ultra-low lithium brine in salt lake according to claim 1, characterized in that: The specification of the adsorbent recovery mesh (8) is 50 mesh, and the specification of the brine discharge pipe (1) is DN1000.