A lithium ion electro-switching sieving membrane device

Abstract

The utility model relates to related technical field of lithium ion electric control exchange screening membrane discloses a kind of lithium ion electric control exchange screening membrane equipment, including fixed bolster, equipment ontology and apron;The equipment ontology is cuboid cavity structure, and ion screening membrane is equipped in cavity, and the reaction cavity is separated into the raw material liquid cavity of upper side and the recovery liquid cavity of lower side;Electrode assembly, it includes first electrode and second electrode, first electrode is attached to ion screening membrane raw material liquid cavity side, second electrode is attached to feed pipe recovery liquid cavity side, both are sheet structure and parallel with membrane surface.The lithium ion electric control exchange screening membrane equipment, structure simplification, it is convenient to operate, equipment whole has no complex redundant structure, through detachable apron, it is convenient to replace ion screening membrane and equipment internal cleaning, by attaching electrode assembly respectively on ion screening membrane two sides, ensure that electrode and membrane surface are closely contacted, reduce ion transmission resistance, realize screening.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium-ion electronically controlled exchange sieving membranes, specifically to a lithium-ion electronically controlled exchange sieving membrane device. Background Technology

[0002] As a core raw material in the new energy field, the demand for lithium resources continues to grow. More than 80% of my country's lithium resources are stored in salt lake brines, and most of them are high magnesium-to-lithium ratio brines. Lithium-ion electronically controlled exchange screening membrane equipment is a device that achieves efficient and selective separation, purification or recovery of lithium ions through electric field regulation and membrane screening. However, existing technologies have problems such as difficulty in disassembly and assembly, need for complex pretreatment to remove impurity ions, or easy to generate secondary pollution and equipment corrosion. They are difficult to adapt to small-scale brine tests or on-site rapid lithium extraction needs, and there are also problems with poor adhesion between the membrane and the electrode. Therefore, this utility model provides a lithium-ion electronically controlled exchange membrane device to solve the problems mentioned above. Utility Model Content

[0003] The purpose of this utility model is to provide a lithium-ion electronically controlled exchange sieving membrane device to solve the problems mentioned in the background art, such as difficulty in disassembly and assembly, the need for complex pretreatment to remove impurity ions, or the easy generation of secondary pollution and equipment corrosion, difficulty in adapting to small-scale brine tests or on-site rapid lithium extraction needs, and the problem of poor adhesion between the membrane and the electrode.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a lithium-ion electronically controlled exchange membrane device, comprising a fixed support, a device body, and a cover plate; Also includes: The main body of the device is a rectangular cavity structure, and an ion sieving membrane is installed inside the cavity to divide the reaction chamber into an upper raw material liquid chamber and a lower recovery liquid chamber. The electrode assembly includes a first electrode and a second electrode. The first electrode is attached to the raw material liquid chamber side of the ion screening membrane, and the second electrode is attached to the recovery liquid chamber side of the feed pipe. Both electrodes are sheet-like structures and are parallel to the membrane surface. The cover plate is snapped onto the upper end of the equipment body, and the cover plate forms a detachable structure on the upper end of the equipment body through fixing components set on the left and right sides.

[0005] Preferably, the device body is fixedly installed on the upper end of the fixed bracket, and a sealing gasket is provided between the device body and the cover plate; Meanwhile, a handle is also fixed to the upper end of the cover plate.

[0006] Preferably, a feed pipe is connected to the middle of the upper end of the cover plate, and the feed pipe is connected to an external raw material liquid tank via a conveying pump, and the feed pipe is connected to the raw material liquid chamber.

[0007] Preferably, a discharge pipe is fixed at the bottom of the device body, one end of the discharge pipe is connected to the recovery liquid chamber, and the other end is connected to the recovery liquid tank.

[0008] Preferably, both the device body and the cover plate are provided with transparent observation windows.

[0009] Preferably, the fixing components include fixing blocks fixed to the left and right sides of the device body, fixing plates fixed to the left and right sides of the upper end of the cover plate, and a movable plate telescopically connected inside the fixing plates.

[0010] Preferably, the lower end of the movable plate is engaged in the fixed block, and the lower side of the movable plate is engaged with the upper end of the fixed block. The movable plate forms an elastic structure on the outer side of the upper end of the cover plate.

[0011] Preferably, a spring is provided between the movable plate and the fixed plate, the movable end of the spring abuts against the movable plate, and connecting blocks are fixedly connected to both the front and rear ends of the movable plate, and the connecting blocks and the fixed plate form a sliding structure. The fixed plate and the movable plate are limited by a fixing bolt that passes through the upper end of the fixed plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the lithium-ion electronically controlled exchange screening membrane equipment has a simplified structure and is easy to operate. The equipment as a whole has no complex and redundant structure. The detachable cover plate facilitates the replacement of the ion screening membrane and the cleaning of the inside of the equipment. By attaching the electrode components to both sides of the ion screening membrane, the electrodes are ensured to be in close contact with the membrane surface, reducing the resistance to ion transmission and realizing screening. 1. It is equipped with a fixed support, equipment body and cover plate. The equipment body is fixedly installed on the upper end of the fixed support, and the cover plate is snapped on the upper end of the equipment body. Combined with the setting of feed pipe, recovery liquid tank and recovery liquid tank, it is convenient to transport raw materials and discharge and collect them after screening. 2. It is equipped with an ion screening membrane, a first electrode and a second electrode. The ion screening membrane is installed in the main body of the equipment and divides the reaction chamber into an upper raw material liquid chamber and a lower recovery liquid chamber for screening the raw material. 3. A fixing component is provided, which includes a fixing block, a fixing plate and a movable plate. The fixing component facilitates the installation, positioning and disassembly of the cover plate and the equipment body, thereby facilitating the replacement of the ion screening membrane. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model from below; Figure 3 This is a frontal sectional view of the present invention. Figure 4 This is a schematic diagram of the exploded structure of the device body, cover plate, ion sieving membrane and electrode assembly of this utility model; Figure 5 This is an exploded view of the fixed block and movable plate of this utility model; Figure 6 This is an exploded view of the fixed plate, movable plate, and connecting block of this utility model.

[0014] In the diagram: 1. Fixed bracket; 2. Equipment body; 3. Cover plate; 4. Sealing gasket; 5. Ion sieve membrane; 6. First electrode; 7. Second electrode; 8. Feed pipe; 9. Discharge pipe; 10. Recovery liquid tank; 11. Handle; 12. Fixing block; 13. Fixing plate; 14. Movable plate; 15. Connecting column; 16. Spring; 17. Connecting block; 18. Fixing bolt. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-6 The present invention provides the following technical solution: To address the problems of existing technologies, such as difficulty in disassembly and assembly, the need for complex pretreatment to remove impurity ions, and the potential for secondary pollution and equipment corrosion, making them unsuitable for small-scale brine experiments or rapid on-site lithium extraction, and the issue of poor adhesion between the membrane and electrode, this solution provides a lithium-ion electrically controlled exchange sieving membrane device. The device comprises a fixed support 1, a device body 2, and a cover plate 3. The device body 2 is a rectangular cavity structure containing an ion sieving membrane 5, which divides the reaction chamber into an upper raw material liquid chamber and a lower recovery liquid chamber. The electrode assembly includes a first electrode 6 and a second electrode 7. The first electrode 6 is attached to the raw material liquid chamber side of the ion sieving membrane 5, and the second electrode 7 is attached to the recovery liquid chamber side of the feed pipe 8. Both electrodes are sheet-like structures and parallel to the membrane surface. The cover plate 3 is snapped onto the upper end of the device body 2, and the cover plate 3 is detachable via fixing components on the left and right sides. like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the equipment body 2 is fixedly installed on the upper end of the fixed bracket 1. The cover plate 3 is snapped onto the upper end of the equipment body 2, and a sealing gasket 4 is fitted between the cover plate 3 and the equipment body 2. At the same time, a feed pipe 8 is connected to the middle of the upper end of the cover plate 3. The feed pipe 8 is connected to the external raw material liquid tank through a conveying pump and is connected to the raw material liquid chamber. A discharge pipe 9 is fixed at the bottom of the equipment body 2. One end of the discharge pipe 9 is connected to the recovery liquid chamber, and the other end is connected to the recovery liquid tank 10. When the external conveying pump is turned on, the brine from the salt lake in the raw material liquid tank is conveyed to the raw material liquid chamber inside the equipment body 2 through the feed pipe 8 and flows along the surface of the ion screening membrane 5. At the same time, the recovery liquid chamber... The system remains unloaded to receive the subsequently separated lithium-ion solution. Simultaneously, the power is turned on to supply power to the electrode assembly, creating a stable electric field between the first electrode 6 and the second electrode 7. Under the influence of this electric field, the ion sieving membrane 5 activates its electroactive sites, allowing only lithium ions to penetrate the membrane and enter the "recovery liquid chamber." Interfering ions such as magnesium and sodium are repelled by the membrane, remaining in the raw material solution and discharged with the waste liquid from the outlet of the raw material solution chamber. After the raw material solution has circulated for a certain period, the delivery pump is turned off to stop the delivery of raw material. A high-concentration lithium-ion solution is collected in the recovery liquid chamber and enters the recovery liquid tank 10 through the discharge pipe 9, completing one lithium-ion extraction cycle. For continuous operation, the above supply, separation, and recovery process can be repeated. In addition, when it is necessary to replace the ion sieving membrane 5, such as Figure 1 , Figure 5 and Figure 6As shown, the fixing components include fixing blocks 12 fixed to the left and right sides of the equipment body 2, fixing plates 13 fixed to the left and right sides of the upper end of the cover plate 3, and a movable plate 14 telescopically connected inside the fixing plate 13. Rotating the fixing bolt 18 loosens the lock between the movable plate 14 and the fixing plate 13. Then, pulling the connecting column 15 fixed between the movable plates 14 on the front and rear sides of the same side causes the movable plate 14 to telescopically slide within the fixing plate 13. The movable plate 14 causes the connecting block 17 to slide between the fixed plate 13. The movable plate 14 compresses the spring 16, causing the spring 16 to undergo elastic deformation. At this time, the movable plate 14 and the fixing block 12 are released from engagement. Then, holding the handle 11, the cover plate 3 is pulled upwards, and the cover plate 3 is removed from the upper end of the equipment body 2, which facilitates the replacement of the ion screening membrane 5.

[0017] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0018] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lithium-ion electronically controlled ion exchange screening membrane device, comprising a fixed support (1), a device body (2), and a cover plate (3); Its features are, Also includes: The main body of the device (2) is a rectangular cavity structure, and an ion screening membrane (5) is provided inside the cavity to divide the reaction chamber into an upper raw material liquid chamber and a lower recovery liquid chamber. The electrode assembly includes a first electrode (6) and a second electrode (7). The first electrode (6) is attached to the raw material chamber side of the ion sieve membrane (5), and the second electrode (7) is attached to the recovery chamber side of the feed pipe (8). Both are sheet-like structures and are parallel to the membrane surface. The cover plate (3) is snapped onto the upper end of the equipment body (2), and the cover plate (3) forms a disassembly structure on the upper end of the equipment body (2) through the fixing components set on the left and right sides.

2. The lithium-ion electronically controlled exchange membrane device according to claim 1, characterized in that: The device body (2) is fixedly installed on the upper end of the fixed bracket (1), and a sealing gasket (4) is provided between the device body (2) and the cover plate (3). Meanwhile, a handle (11) is fixed to the upper end of the cover plate (3).

3. The lithium-ion electronically controlled exchange membrane device according to claim 2, characterized in that: The upper part of the cover plate (3) is connected to the middle of the feed pipe (8), which is connected to the external raw material tank through a conveying pump. The feed pipe (8) is connected to the raw material chamber.

4. The lithium-ion electronically controlled exchange membrane sieving device according to claim 1, characterized in that: The bottom of the equipment body (2) is fixed with a discharge pipe (9), one end of which is connected to the recovery liquid chamber and the other end is connected to the recovery liquid tank (10).

5. The lithium-ion electronically controlled exchange membrane device according to claim 4, characterized in that: Both the device body (2) and the cover plate (3) are provided with transparent observation windows.

6. The lithium-ion electronically controlled exchange membrane device according to claim 1, characterized in that: The fixing components include fixing blocks (12) fixed to the left and right sides of the equipment body (2), fixing plates (13) fixed to the left and right sides of the upper end of the cover plate (3), and movable plates (14) telescopically connected inside the fixing plates (13).

7. The lithium-ion electronically controlled exchange membrane device according to claim 6, characterized in that: The lower end of the movable plate (14) is engaged in the fixed block (12), and the lower side of the movable plate (14) is engaged with the upper end of the fixed block (12). The movable plate (14) forms an elastic structure on the outer side of the upper end of the cover plate (3).

8. The lithium-ion electronically controlled exchange membrane device according to claim 7, characterized in that: A spring (16) is provided between the movable plate (14) and the fixed plate (13). The movable end of the spring (16) abuts against the movable plate (14). Connecting blocks (17) are fixedly connected to both the front and rear ends of the movable plate (14), and the connecting blocks (17) and the fixed plate (13) form a sliding structure. The fixed plate (13) and the movable plate (14) are limited by a fixing bolt (18) that passes through the upper end of the fixed plate (13).

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