A capacitive deionization device for rare metal extractant reuse
Patent Information
- Application Number
- CN202522316421.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-31
AI Technical Summary
[0022]1、本实用新型中，通过拉杆与端板固定部件，防止处理液泄漏，维持稳定处理环境，利用固定孔和螺母实现组件定位与紧固，增强结构稳定性，防止运行中振动松动，卸荷阀在内部压力超限时自动开启泄压，保护内部组件，吸附溶液中的杂质离子，离子交换膜选择性通过离子，提高去离子效率和萃取剂纯度，整体结构显著提高抗冲击能力与装置处理量。
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Figure CN224784249U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rare metal recycling technology, and in particular to a capacitor deionization device for the reuse of rare metal extractants. Background Technology
[0002] Rare metal extractants are highly efficient separation reagents that can selectively extract rare metal ions. They achieve metal enrichment through coordination reactions and are crucial in metallurgy and resource recycling. However, they can become contaminated after use. To promote recycling, capacitive deionization devices have emerged. These devices utilize the principle of electroadsorption to remove impurity ions through porous electrodes, allowing the extractant to be regenerated and reused, thus reducing waste and environmental pollution.
[0003] Traditional capacitive deionization devices for the reuse of rare metal extractants achieve enrichment and recovery by applying a DC voltage to induce the directional migration of metal ions in the solution and their adsorption onto the surface of a porous carbon electrode to form an electrical double layer. However, in practical applications, these devices suffer from limitations such as electrode erosion leading to carbon particle loss, high internal resistance, and uneven water flow distribution, which makes it difficult to fully cover the effective electrode area. Existing technologies, such as membrane capacitive deionization devices, introduce selective ion exchange membranes on the basis of traditional carbon electrodes. These membranes allow specific charged ions to pass through while blocking ions of the same charge, thus enabling more thorough release of ions into the concentrate during desorption at the reverse electrode, improving selectivity and recovery efficiency. However, in practical applications, these devices still suffer from limitations due to the internal flow channel design, resulting in a low throughput per unit time. Furthermore, without optimized water distribution and electrode support design, the solution distribution during electrode flow is uneven, hindering further improvements in processing efficiency and shock resistance. Therefore, a capacitive deionization device for the reuse of rare metal extractants is proposed to address these issues. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a capacitor deionization device for the reuse of rare metal extractants, aiming to improve the problem that the lack of optimized water distribution structure and electrode support design will cause uneven distribution of solution when flowing through the electrodes, resulting in low processing efficiency and impact resistance.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a capacitor deionization device for the reuse of rare metal extractants, comprising a base, a back-end recycling module fixedly connected to the top of the outer wall of the base, a deionization mechanism provided on the top of the outer wall of the back-end recycling module, and a reinforcement mechanism provided on the top of the outer wall of the base.
[0006] The deionization mechanism includes multiple pull rods, the bottom ends of the outer walls of the multiple pull rods are fixedly connected to the top of the outer wall of the rear recovery module, the outer walls of the multiple pull rods are fixedly connected to end plates, the outer walls of the end plates have multiple fixing holes, the outer walls of the multiple pull rods are threaded with nuts, the top of the outer walls of the end plates are fixedly connected to unloading valves, the top of the outer walls of the end plates are connected to flange columns, the top of the outer walls of the end plates are provided with fitting components, the bottom of the outer walls of the end plates are provided with energizing components, and the outer walls of the end plates are provided with flow guiding components.
[0007] As a further description of the above technical solution:
[0008] The enhancement mechanism includes a fixing plate, the outer wall of which is fixedly connected to the top of the outer wall of the base, a cylinder is fixedly connected to the inner wall of the fixing plate, a pressure plug is fixedly connected to the bottom of the outer wall of the cylinder, an active bottle is slidably connected to the outer wall of the pressure plug, and an injection tube is connected to the bottom of the outer wall of the active bottle.
[0009] As a further description of the above technical solution:
[0010] The enhancement mechanism also includes a fixing block, the outer wall of which is fixedly connected to the outer wall of the active bottle.
[0011] As a further description of the above technical solution:
[0012] The fitting component includes a tenon, the outer wall of which is fixedly connected to the outer wall of the end plate, and a tenon post is fixedly connected to the outer wall of the tenon.
[0013] As a further description of the above technical solution:
[0014] The energized assembly includes an electrode sheet, the outer wall of which is fixedly connected to the bottom of the outer wall of the end plate, and an ion exchange membrane is fixedly connected to the bottom of the outer wall of the electrode sheet.
[0015] As a further description of the above technical solution:
[0016] The flow guiding assembly includes a sealing gasket, the outer wall of which is fixedly connected to the outer wall of the electrode sheet, and a flow groove is formed on the top of the outer wall of the end plate.
[0017] As a further description of the above technical solution:
[0018] A positive wire is fixedly connected to the outer wall of the back-end recycling module, and a negative wire is fixedly connected to the outer wall of the back-end recycling module.
[0019] As a further description of the above technical solution:
[0020] A front-end processing module is fixedly connected to the top of the outer wall of the base, and a deionization module is fixedly connected to the top of the outer wall of the base.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the tie rod and end plate fixing components prevent leakage of the treatment liquid and maintain a stable treatment environment. The fixing holes and nuts are used to position and fasten the components, which enhances the structural stability and prevents vibration and loosening during operation. The unloading valve automatically opens to release pressure when the internal pressure exceeds the limit, protecting the internal components. It adsorbs impurity ions in the solution. The ion exchange membrane selectively passes ions, which improves the deionization efficiency and the purity of the extractant. The overall structure significantly improves the impact resistance and the processing capacity of the device.
[0023] 2. In this utility model, the cylinder is supported by a fixed plate, and the cylinder drives the plunger to press down stably, so that the high-efficiency active material in the active bottle is evenly squeezed into the treatment device through the injection tube, thereby significantly improving the deionization efficiency. The fixed block ensures the stability of the active bottle during operation and avoids displacement. The whole process greatly increases the content of active material in the device and further enhances the treatment effect. Attached Figure Description
[0024] Figure 1 This is a perspective view of a capacitor deionization device for the reuse of rare metal extractants proposed in this utility model.
[0025] Figure 2 This is a front view of a capacitor deionization device for the reuse of rare metal extractants proposed in this utility model.
[0026] Figure 3 This is a top view of a capacitor deionization device for the reuse of rare metal extractants proposed in this utility model.
[0027] Figure 4 This is an exploded view of a capacitor deionization device for the reuse of rare metal extractants proposed in this utility model.
[0028] Figure 5 This is a side view of a capacitor deionization device for the reuse of rare metal extractants proposed in this utility model.
[0029] Legend:
[0030] 1. Base; 2. Rear-end recycling module; 3. Deionization mechanism; 301. End plate; 302. Fixing hole; 303. Nut; 304. Unloading valve; 305. Flange column; 306. Fitting assembly; 3061. Locking tenon; 3062. Tenon column; 307. Power supply assembly; 3071. Electrode plate; 3072. Ion exchange membrane; 308. Flow guiding assembly; 3081. Sealing gasket; 3082. Flow channel; 309. Pull rod; 4. Reinforcing mechanism; 401. Fixing plate; 402. Cylinder; 403. Plug; 404. Activated bottle; 405. Injection tube; 406. Fixing block; 5. Positive electrode line; 6. Front-end processing module; 7. Deionization module; 8. Negative electrode line. Detailed Implementation
[0031] 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.
[0032] Reference Figures 3-4 The present invention provides an embodiment of a capacitor deionization device for the reuse of rare metal extractants, comprising a base 1, which provides stable support for the device to ensure that the device remains horizontal and stable during operation and to avoid affecting the coordinated work of the components due to shaking. A back-end recovery module 2 is fixedly connected to the top of the outer wall of the base 1, which collects and temporarily stores the solution containing reusable rare metal extractants after deionization treatment, and provides a transition for subsequent extractant purification or recycling processes to achieve resource recovery. A deionization mechanism 3 is provided on the top of the outer wall of the back-end recovery module 2, and a reinforcement mechanism 4 is provided on the top of the outer wall of the base 1.
[0033] The deionization mechanism 3 includes multiple pull rods 309. The bottom ends of the outer walls of each pull rod 309 are fixedly connected to the top of the outer wall of the rear-end recovery module 2. End plates 301 are fixedly connected to the outer walls of each pull rod 309, securing key components and working with sealing gaskets 3081 to ensure the mechanism's airtightness, prevent leakage of the treatment fluid, and maintain a stable treatment environment. Multiple fixing holes 302 are provided on the outer walls of the end plates 301, which, through cooperation with relevant components, enable the positioning and fastening of each component, ensuring structural stability. Nuts 303 are threaded onto the outer walls of each pull rod 309, cooperating with the pull rods 309. Tightening these nuts applies a preload, further enhancing the stability of the mechanism. To secure the connections of the components in the device and prevent loosening of parts due to vibration during operation, a relief valve 304 is fixedly connected to the top of the outer wall of the end plate 301. When the internal processing fluid pressure exceeds a set threshold, it automatically opens to release pressure and protect the internal components from damage. A flange post 305 is connected to the top of the outer wall of the end plate 301. A fitting component 306 is provided on the top of the outer wall of the end plate 301. The fitting component 306 includes a tenon 3061, which, as a protrusion, is embedded in the groove of the tenon post 3062 to achieve quick positioning and initial fixation between the device components, facilitating device assembly and maintenance. The outer wall of the tenon 3061 is fixedly connected to the end plate 301. The outer wall of the tenon 3061 is fixedly connected to a tenon 3062 with a groove structure, which interlocks with the tenon 3061 to enhance the stability of the connection of the fitting component 306 and prevent the component from shifting due to force during device operation. An energizing component 307 is provided at the bottom of the outer wall of the end plate 301. The energizing component 307 includes an electrode 3071, which forms an electric field when energized to adsorb cations or anions in the solution that affect the purity of the rare metal extractant. It is a key component for achieving the deionization function. The outer wall of the electrode 3071 is fixedly connected to the bottom of the outer wall of the end plate 301, and an ion exchanger is fixedly connected to the bottom of the outer wall of the electrode 3071. Membrane 3072 allows specific ions to pass through and prevents impurity ions from migrating in the opposite direction, thereby improving the removal efficiency and selectivity of the deionization mechanism 3 for impurity ions. The outer wall of the end plate 301 is provided with a flow guiding component 308, which includes a sealing gasket 3081. The outer wall of the sealing gasket 3081 is fixedly connected to the outer wall of the electrode plate 3071. A flow groove 3082 is opened at the top of the outer wall of the end plate 301, which provides a flow channel for the solution containing rare metal extractant, so that the solution is radially uniformly distributed and flows through the key processing area of the device, reducing solution retention and flow dead zones, improving processing efficiency, and the entire structure improves the impact resistance and the processing capacity of the device.
[0034] Specifically, the fixing plate 401 is connected to the top of the outer wall of the base 1, the cylinder 402 is installed on the inner wall of the fixing plate 401, and the pressure plug 403 is fixed to the bottom of the outer wall of the cylinder 402. When the cylinder 402 receives a drive signal, its internal piston is pushed by air pressure, causing the pressure plug 403 to move downward, thereby squeezing the active material stored in the active bottle 404. The bottom of the active bottle 404 is connected to the injection pipe 405. The squeezed active material is input into the processing device through the injection pipe 405. The active bottle 404 is fixed by the fixing block 406. The fixing block 406 is attached to the outer wall of the active bottle 404. Its function is to ensure the stability of the active bottle 404 during operation. This active material can significantly improve the efficiency of the deionization process. The whole working mechanism achieves a significant increase in the content of active material in the processing device through orderly physical actions.
[0035] Reference Figures 3-5 The enhancement mechanism 4 includes a fixing plate 401 for fixing a cylinder 402. The outer wall of the fixing plate 401 is fixedly connected to the top of the outer wall of the base 1. The inner wall of the fixing plate 401 is fixedly connected to the cylinder 402. The bottom of the outer wall of the cylinder 402 is fixedly connected to a pressure plug 403. Driven by the cylinder 402, the substance in the active bottle 404 is squeezed and enters the processing device through the injection tube 405. The outer wall of the pressure plug 403 is slidably connected to the active bottle 404. The bottom of the outer wall of the active bottle 404 is connected to the injection tube 405. The enhancement mechanism 4 also includes a fixing block 406 for fixing the active bottle 404, which stores active substances that can improve deionization efficiency. The outer wall of the fixing block 406 is fixedly connected to the outer wall of the active bottle 404. The entire structure greatly increases the content of active substances in the device.
[0036] Specifically, the treatment liquid enters the device and is evenly distributed through the flow channel 3082 of the flow guiding component 308, reducing dead zones and improving treatment efficiency. The flow channel 3082 provides a flow channel for the solution containing rare metal extractants, allowing the solution to flow radially and cover key treatment areas. The flow guiding component 308 also includes a sealing gasket 3081, which, combined with the end plate 301, ensures the sealing of the mechanism, prevents leakage of the treatment liquid, and maintains a stable treatment environment. The treatment liquid then flows through the energized component 307, which consists of electrode plates 3071 and an ion exchange membrane 3072. When the electrode plates 3071 are energized, an electric field is formed, adsorbing cations and anions in the solution that affect purity. The ion exchange membrane 3072 allows specific ions to pass through and prevents impurity ions from migrating backward, thereby improving the removal efficiency and selectivity of the deionization mechanism 3 for impurity ions. This is the core principle for achieving the deionization function. During the deionization process, the end plate 301 serves as a fixed base, and through the fixing holes 302 on it, it cooperates with relevant components to achieve the positioning and fastening connection of each component, ensuring the overall stability of the structure. Multiple tie rods 309 mounted on end plate 301 are connected to the rear-end recovery module 2. Nuts 303 are threaded onto the outer wall of each tie rod 309. Tightening the nuts 303 applies preload, further reinforcing the connections between components in the device and preventing loosening due to vibration during operation, thus enhancing impact resistance. To ensure safe operation, an unloading valve 304 is installed at the top of end plate 301. When the internal processing fluid pressure exceeds a set threshold, the unloading valve 304 automatically opens to release pressure, protecting internal components from damage. Simultaneously, flange column 3... 05 is connected to the top of the end plate 301 to assist in the flow management of the treatment fluid. The end plate 301 is also equipped with a fitting component 306, which includes a tenon 3061 and a tenon 3062. The tenon 3061 is embedded in the groove of the tenon 3062 as a protrusion, realizing quick positioning and initial fixation between the device components, which facilitates assembly and maintenance. This interlocking design enhances the connection stability and prevents the components from shifting under force. The entire workflow relies on the synergistic effect of these components to ensure the efficient and continuous deionization process, ultimately improving the throughput and reliability of the device.
[0037] Reference Figures 1-3A positive electrode line 5 is fixedly connected to the outer wall of the back-end recovery module 2. It connects the positive terminal of the external power supply to the energizing component 307, supplying a positive current to the electrode plate 3071, making the electrode plate 3071 a positive electrode, and providing an electric field condition for adsorbing anions in the solution. A negative electrode line 8 is fixedly connected to the outer wall of the back-end recovery module 2. It connects to the negative terminal of the external power supply, supplying a reverse current to the electrode plate 3071, making the electrode plate 3071 a negative electrode, and providing an electric field condition for adsorbing cations in the solution. A front-end processing module 6 is fixedly connected to the top of the outer wall of the base 1. It pre-treats the original solution containing rare metal extractant, providing a qualified solution to be treated in the device. A deionization module 7 is fixedly connected to the top of the outer wall of the base 1, further removing residual trace ions in the solution, ensuring that the purity of the treated rare metal extractant solution meets the standards and the requirements for reuse.
[0038] Specifically, in the operation of the back-end recycling module 2, the positive electrode line 5 is responsible for connecting the positive electrode of the external power supply to the energizing component 307, supplying positive current to the electrode plate 3071, so that the electrode plate 3071 forms a positive potential and establishes the electric field environment required for adsorbing anions. At the same time, the negative electrode line 8 is connected to the negative electrode of the external power supply, providing reverse current to the electrode plate 3071, so that the electrode plate 3071 presents a negative potential. The base 1 integrates the front-end processing module 6, which performs preliminary purification and adjustment on the original solution containing rare metal extractant, ensuring that the solution entering the device meets the processing standards and provides qualified raw materials for subsequent stages. The deionization module 7 receives the solution after front-end processing and removes residual trace impurity ions through deep ion exchange, ultimately ensuring that the purity of the rare metal extractant solution meets the requirements for reuse.
[0039] Working principle: First, the key components are firmly connected by the tie rod 309 and the end plate 301, forming an effective seal with the sealing gasket 3081 to prevent leakage of the treatment liquid and maintain the stability of the internal treatment environment. The fixing holes 302 and nuts 303 on the end plate 301 are used to position and fasten the components, enhancing the overall structural rigidity and preventing loosening due to vibration during equipment operation. The unloading valve 304 automatically opens to release pressure when the internal pressure exceeds the set value, protecting the safety of the internal components. The electrode plate 3071 forms an electric field after being energized, adsorbing impurity ions in the solution. The ion exchange membrane 3072 selectively allows specific ions to pass through, effectively improving deionization efficiency and extractant purity. The runoff channel 3082 provides a uniform flow path for the solution, reducing stagnation areas. The overall design significantly improves the impact resistance and processing capacity of the device.
[0040] Furthermore, with the fixed plate 401 providing stable support, the cylinder 402 drives the plunger 403 to press down smoothly, uniformly injecting the active material stored in the active bottle 404 into the treatment device through the injection tube 405. The fixed block 406 ensures that the active bottle 404 remains stable during operation and avoids displacement. This process significantly increases the content of active material in the device, thereby effectively improving the processing efficiency of the deionization process and further enhancing the overall treatment effect. The entire mechanism operates smoothly and reliably, realizing the quantitative and controllable addition of active material, and providing an important guarantee for the continuous and stable operation of the structure.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A capacitor deionization device for the reuse of rare metal extractants, comprising a base (1), characterized in that: The outer wall of the base (1) is fixedly connected to the top of the rear recycling module (2), the outer wall of the rear recycling module (2) is provided with a deionization mechanism (3), and the outer wall of the base (1) is provided with a reinforcement mechanism (4). The deionization mechanism (3) includes multiple pull rods (309). The bottom of the outer wall of each pull rod (309) is fixedly connected to the top of the outer wall of the rear recovery module (2). The outer wall of each pull rod (309) is fixedly connected to an end plate (301). The outer wall of the end plate (301) is provided with multiple fixing holes (302). The outer wall of each pull rod (309) is threaded with a nut (303). The top of the outer wall of the end plate (301) is fixedly connected to an unloading valve (304). The top of the outer wall of the end plate (301) is connected to a flange column (305). The top of the outer wall of the end plate (301) is provided with a fitting component (306). The bottom of the outer wall of the end plate (301) is provided with an energizing component (307). The outer wall of the end plate (301) is provided with a flow guiding component (308).
2. The capacitor deionization device for the reuse of rare metal extractants according to claim 1, characterized in that: The reinforcing mechanism (4) includes a fixing plate (401), the outer wall of the fixing plate (401) is fixedly connected to the top of the outer wall of the base (1), the inner wall of the fixing plate (401) is fixedly connected to a cylinder (402), the bottom of the outer wall of the cylinder (402) is fixedly connected to a stopper (403), the outer wall of the stopper (403) is slidably connected to an active bottle (404), and the bottom of the outer wall of the active bottle (404) is connected to an injection tube (405).
3. The capacitor deionization device for the reuse of rare metal extractants according to claim 1, characterized in that: The reinforcing mechanism (4) also includes a fixing block (406), the outer wall of which is fixedly connected to the outer wall of the active bottle (404).
4. A capacitor deionization device for the reuse of rare metal extractants according to claim 1, characterized in that: The fitting component (306) includes a tenon (3061), the outer wall of which is fixedly connected to the outer wall of the end plate (301), and a tenon (3062) is fixedly connected to the outer wall of the tenon (3061).
5. A capacitor deionization device for the reuse of rare metal extractants according to claim 1, characterized in that: The power-conducting component (307) includes an electrode sheet (3071), the outer wall of which is fixedly connected to the bottom of the outer wall of the end plate (301), and an ion exchange membrane (3072) is fixedly connected to the bottom of the outer wall of the electrode sheet (3071).
6. A capacitor deionization device for the reuse of rare metal extractants according to claim 1, characterized in that: The flow guiding assembly (308) includes a sealing gasket (3081), the outer wall of which is fixedly connected to the outer wall of the electrode sheet (3071), and a flow groove (3082) is provided on the top of the outer wall of the end plate (301).
7. A capacitor deionization device for the reuse of rare metal extractants according to claim 1, characterized in that: The outer wall of the back-end recycling module (2) is fixedly connected with a positive wire (5) and a negative wire (8).
8. A capacitor deionization device for the reuse of rare metal extractants according to claim 1, characterized in that: A front-end processing module (6) is fixedly connected to the top of the outer wall of the base (1), and a deionization module (7) is fixedly connected to the top of the outer wall of the base (1).