Electrolyte circulation filtering device for electrolytic cell

Abstract

The utility model provides electrolyte circulating filter device of electrolytic cell, including electrolytic cell, electrolytic cell top one end is installed with mounting bracket, the mounting bracket is fixed with circulating bucket, the support ring is supported to circulating bucket, the support ring bottom end surface is provided with connecting rod, the filter cover is installed to connecting rod bottom end. The utility model discloses the cooperation structure of " support ring + connecting rod " fixed filter cover, solved the displacement, the deformation problem of existing filter assembly because of the unreasonable fixed mode, can effectively avoid the increase of filter gap, ensure the impurity retention effect, reduce electrolyte pollution, guarantee electrode reaction stability, at the same time, the liquid level alarm of circulating bucket inner wall can real -time monitoring electrolyte liquid level, aiming at the defect of circulating system no liquid level early warning in background art, can timely early warning liquid level sudden rise or sudden drop situation, avoid electrolyte overflow, the production accident such as interruption, reduce the security risk, improve the device operation safety and stability.

Description

Technical Field

[0001] This utility model relates to the field of electrolyte filtration technology, and in particular to an electrolyte circulation filtration device for an electrolytic cell. Background Technology

[0002] In the field of electrolytic production, the circulation, filtration, and uniform stirring of the electrolyte are crucial for ensuring efficient electrolytic reactions and stable product quality, directly impacting electrolysis efficiency, electrode lifespan, and production safety. However, existing electrolyte treatment systems in electrolytic cells have significant technical deficiencies, making it difficult to meet the demands of continuous industrial production.

[0003] Existing equipment for electrolyte circulation filtration has several shortcomings: First, the fixing method of the filter components is unreasonable. Most filter covers are only fixed by simple hooks or bolts, lacking a stable support structure such as a support ring and connecting rod. The impact of electrolyte flow can easily cause the filter cover to shift or deform, resulting in increased filtration gaps. Impurities cannot be effectively trapped, thus contaminating the electrolyte and affecting the electrode reaction. Second, the circulation system lacks liquid level safety assurance. If the return pipe is blocked or the flow rate is abnormal when the circulation pump is working, the electrolyte level in the circulation tank is prone to sudden rise or fall. Existing equipment does not have a liquid level alarm, so it cannot provide timely warnings, often leading to accidents such as electrolyte overflow and circulation interruption, increasing production risks. At the same time, the design of the pipeline connection between some circulation pumps and electrolytic cells is crude, which can easily lead to liquid accumulation and blockage, reducing circulation efficiency.

[0004] Therefore, it is necessary to provide an electrolyte circulation and filtration device for the electrolytic cell to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides an electrolyte circulation filtration device for an electrolytic cell, which solves the problems in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides an electrolyte circulation and filtration device for an electrolytic cell. The electrolytic cell serves as the main body of the device, and a mounting frame is fixedly installed at one end of its top (excluding the center or a specific edge area) by bolts or other fastening structures. The mounting frame is cantilevered or supported, providing stable support for the circulation bucket above. The circulation bucket is fixed to the mounting frame by welding or bolts, and the whole is located directly above the electrolytic cell in a vertically corresponding relationship, ensuring that the electrolyte can accurately flow back into the electrolytic cell. An embedded groove is reserved in the inner wall of the circulation bucket, into which a liquid level alarm is embedded. Its sensing end directly contacts the electrolyte in the circulation bucket, which can monitor the liquid level changes in real time. When the liquid level rises or falls suddenly, an alarm is triggered, which links subsequent equipment for adjustment or reminds staff to intervene, so as to avoid electrolyte overflow or circulation interruption. Meanwhile, a support ring is horizontally supported at the opening edge of the circulation bucket or on a pre-set support platform. At least two symmetrically distributed connecting rods are vertically fixed to the bottom surface of the support ring. The bottom ends of the connecting rods are connected to the top edge of the filter cover by welding or bolts, allowing the filter cover to be suspended below the circulation bucket and partially extend into the space above the electrolytic cell. This "support ring + connecting rod" configuration... The structure can resist the impact of electrolyte flow, prevent the filter cover from shifting or deforming, and ensure the stability of the filtration gap to effectively trap impurities. In addition, a circulation pump is fixed to the outer surface of the electrolytic cell (the side area, excluding the top and bottom) by a bracket. The input end of the circulation pump is connected to the lower side wall or bottom of the electrolytic cell through a corrosion-resistant pipe (one end of the pipe is connected to the inside of the electrolytic cell, and the other end is sealed to the inlet of the circulation pump). The output end is connected to the circulation bucket or the top of the electrolytic cell through a return pipe (one end of the return pipe is connected to the outlet of the circulation pump, and the other end extends into the circulation bucket or above the electrolytic cell). When the circulation pump is running, it can draw electrolyte from the electrolytic cell, transport it to the circulation bucket through the return pipe, filter it through the filter cover, and return it to the cell, realizing electrolyte circulation. At the same time, the liquid level alarm monitors the liquid level in the circulation bucket throughout the process to ensure the safe and stable circulation process.

[0007] Preferably, a drive motor is fixedly mounted on the outer surface of the electrolytic cell (on the same side or opposite side as the circulating pump, with a height corresponding to the middle of the electrolytic cell) via a motor mount. The output end (shaft) of the drive motor penetrates the side wall of the electrolytic cell—a sealed bearing design is used at the penetration point to prevent electrolyte leakage, and the output end is fixedly connected to one end of the main shaft located inside the electrolytic cell via a coupling. The main shaft is horizontal, and its other end is connected to the inner side wall of the electrolytic cell via a bearing seat to ensure the stability of the main shaft during rotation. At the same time, the circumferential side of the main shaft is vertically welded or bolted to the stirring plate. When the drive motor is running, it will drive the main shaft to rotate synchronously through the output end. The main shaft will further drive the stirring plate to rotate. During the rotation, the stirring plate agitates the electrolyte in the electrolytic cell, breaking up the concentration and temperature stratification of the electrolyte, improving the overall uniformity of the electrolyte, providing a stable environment for the electrolysis reaction, and ensuring electrolysis efficiency and product quality.

[0008] Preferably, a drive motor is fixedly mounted on the outer surface of the electrolytic cell (on the same side or opposite side as the circulating pump, with a height corresponding to the middle of the electrolytic cell) via a motor mount. The output end (shaft) of the drive motor penetrates the side wall of the electrolytic cell—a sealed bearing design is used at the penetration point to prevent electrolyte leakage, and the output end is fixedly connected to one end of the main shaft located inside the electrolytic cell via a coupling. The main shaft is horizontal, and its other end is connected to the inner side wall of the electrolytic cell via a bearing seat to ensure the stability of the main shaft during rotation. At the same time, the circumferential side of the main shaft is vertically welded or bolted to the stirring plate. When the drive motor is running, it will drive the main shaft to rotate synchronously through the output end. The main shaft will further drive the stirring plate to rotate. During the rotation, the stirring plate agitates the electrolyte in the electrolytic cell, breaking up the concentration and temperature stratification of the electrolyte, improving the overall uniformity of the electrolyte, providing a stable environment for the electrolysis reaction, and ensuring electrolysis efficiency and product quality.

[0009] Preferably, multiple stirring plates are installed at equal angles and distances along the circumference of the main shaft, centered on the main shaft. The stirring plates are perpendicularly connected to the main shaft, and their length matches the inner diameter of the electrolytic cell. A small gap is left between the edge of the stirring plate and the inner wall of the electrolytic cell to avoid damage caused by friction with the cell wall during rotation. This equidistant distribution structure allows the stirring plates to achieve 360° stirring of the electrolyte in the electrolytic cell under the drive of the main shaft, preventing uneven concentration caused by local electrolyte not being stirred, effectively improving stirring efficiency and uniformity, further ensuring the overall stability of the electrolytic reaction, and reducing the impact of local concentration differences on electrode life.

[0010] Preferably, a drain pipe is connected to the lower part of the outer wall of the electrolytic cell. One end of the drain pipe is connected to the bottom of the electrolytic cell and communicates with the space below the supporting grid plate. The other end extends to the waste liquid collection area. At the same time, a valve is installed in the middle of the drain pipe through a flange or thread. The valve handle is located on the outside of the electrolytic cell for easy operation by the staff. When production is completed or the electrolyte needs to be replaced, the valve is opened, and the electrolyte or waste liquid in the electrolytic cell can be smoothly discharged to the collection area through the drain pipe. When the valve is closed, the electrolytic cell can be sealed to ensure that the electrolyte will not leak from the drain pipe during normal production, thus balancing the convenience of drainage and the sealing of production.

[0011] Preferably, a controller is fixed to the outer surface of the electrolytic cell (with a height of 1.2-1.5m for easy operation by staff) via a bracket. The controller is electrically connected to the circulating pump, drive motor, and liquid level alarm via wires, and the wires are encased in conduit to prevent electrolyte corrosion from affecting circuit stability. During operation, the controller receives the liquid level signal transmitted by the liquid level alarm. When the liquid level is abnormal, the controller displays an alarm message and can automatically start and stop the circulating pump and adjust the speed of the drive motor. Staff can also manually operate the circulating pump to start and stop and set the stirring speed through the controller, realizing centralized control of the overall operating status of the device, greatly improving the ease of operation and the intelligence level of the device operation.

[0012] Compared with related technologies, the electrolyte circulation filtration device for the electrolytic cell provided by this utility model has the following beneficial effects:

[0013] Compared with existing technologies, this device uses a "support ring + connecting rod" structure to fix the filter cover, which solves the problems of displacement and deformation caused by unreasonable fixing methods in existing filter components. It can effectively avoid the increase of filter gap, ensure the impurity interception effect, reduce electrolyte contamination, and ensure the stability of electrode reaction. At the same time, the liquid level alarm on the inner wall of the circulation tank can monitor the electrolyte level in real time. Addressing the deficiency of the circulation system without liquid level warning in the background technology, it can promptly warn of sudden rises or drops in liquid level, avoid production accidents such as electrolyte overflow and circulation interruption, reduce safety risks, and improve the safety and stability of device operation.

[0014] Compared with existing technologies, the device drives the main shaft and stirring plate to rotate via a drive motor, which can uniformly stir the electrolyte in the electrolytic cell. This makes up for the shortcomings of existing systems in the electrolyte uniform stirring process, effectively improves the uniformity of electrolyte concentration and temperature, ensures efficient and stable electrolysis reaction, and thus improves electrolysis efficiency and product quality stability. At the same time, it can also reduce the adverse effects on electrode life caused by uneven local electrolyte concentration.

[0015] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0016] Figure 1 A schematic diagram of the electrolyte circulation filtration device for the electrolytic cell provided by this utility model;

[0017] Figure 2 A schematic diagram of the internal structure of the electrolyte circulation filtration device for the electrolytic cell provided by this utility model;

[0018] Figure 3 A schematic diagram of the supporting grid plate structure of the electrolyte circulation filtration device for the electrolytic cell provided by this utility model;

[0019] Figure 4 A schematic diagram of the liquid level alarm structure of the electrolyte circulation filtration device for the electrolytic cell provided by this utility model;

[0020] Figure 5 A schematic diagram of the filter cover structure of the electrolyte circulation filtration device for the electrolytic cell provided by this utility model.

[0021] Numbering on the map:

[0022] 1. Electrolytic cell; 2. Drive motor; 3. Return pipe; 4. Circulation hopper; 5. Mounting frame; 6. Controller; 7. Circulation pump; 8. Main shaft; 9. Stirring plate; 10. Support grid plate; 11. Liquid level alarm; 12. Support ring; 13. Connecting rod; 14. Filter cover. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Example 1

[0025] Please refer to the following: Figure 1-5 An electrolyte circulation and filtration device for an electrolytic cell 1 includes an electrolytic cell 1, characterized in that a mounting frame 5 is installed at one top end of the electrolytic cell 1, a circulation bucket 4 is fixed on the mounting frame 5, a support ring 12 is supported on the circulation bucket 4, a connecting rod 13 is provided on the bottom surface of the support ring 12, a filter cover 14 is installed at the bottom end of the connecting rod 13, a circulation pump 7 is installed on the outer surface of the electrolytic cell 1, the input end of the circulation pump 7 is connected to the electrolytic cell 1 through a pipe, a return pipe 3 is installed at the output end of the circulation pump 7, and a liquid level alarm 11 is embedded in the inner wall of the circulation bucket 4.

[0026] Electrolytic cell 1 serves as the main body of the device, with its top end securely connected to a stainless steel "L"-shaped mounting bracket 5 via hexagonal bolts. The circulation hopper 4 is a cylindrical or square-shaped stainless steel cavity with four symmetrical connecting lugs pre-set on its bottom edge. These lugs are fixed to the horizontal section of the mounting bracket 5 using bolts of the same specification. Installation follows the steps of "positioning → pre-tightening → level calibration → final tightening" to prevent the circulation hopper 4 from tilting and causing electrolyte overflow. The circulation pump 7 is fixed to the outer surface of electrolytic cell 1 via an L-shaped metal bracket, which is secured to the side wall of the cell with expansion bolts. The return pipe 3 at the pump output end is also threaded, with its opening extending 10-15mm above the circulation hopper 4 and facing the inner side wall of the hopper to prevent direct impact of the electrolyte on the filter cover 14. When the circulation pump 7 is running, the electrolyte is drawn from the bottom of electrolytic cell 1 through a pipe, transported to the circulation hopper 4 via the return pipe 3, filtered by the filter cover 14, and then returned to electrolytic cell 1, forming a closed-loop circulation path and improving impurity removal efficiency. Meanwhile, the inner wall of the circulation tank 4 is pre-set with cylindrical mounting holes. The submersible liquid level alarm 11 forms an interference fit with the mounting hole through an O-ring seal. When the return pipe 3 is blocked and the liquid level rises to 2 / 3, the alarm sends a signal to trigger a high liquid level alarm, and the staff can clear the blockage in time. When the pump flow is too large and the liquid level drops to 1 / 3, a low liquid level alarm is triggered to prevent the pump from running dry and being damaged. This solves the problem of overflow and circulation interruption caused by the lack of liquid level warning in the existing device, and ultimately achieves the technical effects of stable electrolyte circulation, effective filtration of impurities, and reduced safety risks.

[0027] Example 2

[0028] Please refer to the following: Figure 1-5 A drive motor 2 is mounted on the outer surface of the electrolytic cell 1. The output end of the drive motor 2 passes through the surface of the electrolytic cell 1 and is connected to a main shaft 8. A stirring plate 9 is mounted on the periphery of the main shaft 8.

[0029] A variable frequency geared motor is fixed to the outer surface of the electrolytic cell 1 via a motor base. During operation, the drive motor 2 drives the main shaft 8 to rotate, and the stirring plate 9 rotates synchronously to form a compound motion of "up-and-down tumbling + circumferential stirring". This breaks down the concentration stratification (such as a decrease in concentration near the electrode) and temperature stratification (local temperature rise due to exothermic reaction) caused by the electrolysis reaction, thereby improving the uniformity of electrolyte concentration and controlling the temperature difference within ±2℃. Compared with existing simple stirring devices, this structure can ensure that the electrolysis reaction takes place in a uniform environment, improve electrolysis efficiency, reduce electrode scaling, extend electrode life, and ultimately achieve the technical effect of efficient and stable electrolysis reaction.

[0030] Example 3

[0031] Please refer to the following: Figure 1-5 The electrolytic cell 1 is equipped with a supporting grid plate 10.

[0032] Inside the electrolytic cell 1, a stainless steel grid plate matching the cross-section of the electrolytic cell 1 is horizontally placed on a support block at the bottom. Installation is completed without additional fasteners, facilitating later disassembly and cleaning. This support grid plate 10 is erected above the cell bottom, forming a spatial structure of "upper electrolyte flow + lower impurity deposition." Simultaneously, the electrolyte can flow smoothly through the grid without affecting the extraction efficiency of the circulation pump 7. Furthermore, the grid plate also assists in supporting the electrode components inside the electrolytic cell 1 (if the electrodes need to be placed in the central area), preventing the electrodes from directly contacting impurities at the cell bottom, ensuring stable electrode reactions, and ultimately achieving the technical effects of pre-emptive impurity interception, protection of the circulation system, and auxiliary electrode support.

[0033] Example 4

[0034] Please refer to the following: Figure 1-5 A drain pipe is installed through the outer surface of the electrolytic cell 1, and a valve is installed on the drain pipe.

[0035] An interface is pre-set on the lower side of the outer wall of the electrolytic cell 1, which is connected to the flange at one end of the stainless steel drain pipe. At the same time, the drain pipe is located at the bottom of the cell, which can discharge the tiny impurities that are not intercepted by the grid plate and filter cover 14 with the waste liquid, reduce the accumulation of impurities in the cell, reduce the difficulty of cleaning, and ultimately achieve the technical effects of convenient drainage, reliable sealing, and auxiliary impurity cleaning.

[0036] Example 5

[0037] Please refer to the following: Figure 1-5 A controller 6 is installed on the outer surface of the electrolytic cell 1.

[0038] The controller 6 internally houses relays and a frequency converter, and externally includes start / stop buttons for the circulating pump 7, motor speed adjustment buttons, and displays for liquid level, speed, and temperature. It connects to the circulating pump 7, drive motor 2, and liquid level alarm 11 via multi-core cables. The cables are encased in metal conduits (fixed to the tank wall), and the conduits are sealed to the controller 6's cable inlet with waterproof connectors to prevent electrolyte corrosion. During operation, the controller 6 acts as the "control center," enabling electrical linkage: when the liquid level alarm 11 detects an abnormal liquid level (high / low) in the circulating tank 4, it transmits a signal to the controller 6. The controller 6 immediately triggers an audible and visual alarm (the alarm type is displayed on the screen), and simultaneously automatically controls the circulating pump 7—reducing its speed or pausing it at high liquid levels to prevent continued electrolyte delivery; and pausing it at low liquid levels to prevent dry running. The response time is shortened to 0.5-1 seconds, significantly reducing the risk of accidents. Operators can manually operate the buttons to control the circulating pump 7, or adjust the stirring speed through the frequency converter. The display screen shows the operating parameters in real time, making it easy to monitor the status of the equipment. In addition, the controller 6 can also record data such as circulation time and alarm count, which facilitates later maintenance and production analysis. Ultimately, it achieves the technical effects of intelligent control of the equipment, rapid fault response, and visualization of operating parameters, thereby improving the level of automation and reliability of industrial production.

[0039] It should be noted that the control circuit of controller 6 can be implemented by simple programming by those skilled in the art, and is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0040] In industrial production, the electrolyte circulation filtration device of electrolytic cell 1 operates according to the coordinated logic of "circulation filtration - liquid level monitoring - uniform stirring". The specific process is as follows:

[0041] Initial state and cycle start-up: The electrolyte is first injected into the electrolytic cell 1. The support grid plate 10 installed inside the electrolytic cell 1 can initially support large particulate impurities in the electrolyte, preventing them from accumulating directly at the bottom of the electrolytic cell 1 and affecting subsequent circulation. After the device is started, the circulation pump 7 on the outside of the electrolytic cell 1 starts working, drawing the electrolyte to be treated from the electrolytic cell 1 through the input pipe, thus starting the electrolyte circulation process.

[0042] Filtration Stage: The electrolyte drawn by the circulating pump 7 is first delivered to the circulating hopper 4. The support ring 12 on the circulating hopper 4 and the connecting rod 13 at the bottom form a stable support structure, fixing the filter cover 14 at a suitable position below the circulating hopper 4. When the electrolyte flows through the filter cover 14, the filter cover 14 can finely trap impurities. Because the support ring 12 and the connecting rod 13 can effectively resist the impact of the electrolyte flow, the filter cover 14 will not shift or deform, ensuring a stable filtration gap and a continuous and reliable impurity trapping effect. The filtered electrolyte is temporarily stored in the circulating hopper 4.

[0043] Return and level monitoring: The filtered electrolyte in the circulation tank 4 is returned to the electrolytic cell 1 through the return pipe 3 at the output end of the circulation pump 7, completing one cycle; at the same time, the level alarm 11 embedded in the inner wall of the circulation tank 4 monitors the electrolyte level in the tank in real time: if the return pipe 3 is blocked or the flow of the circulation pump 7 is abnormal, causing the liquid level in the tank to rise suddenly, or if the circulation pump 7 draws too much, causing the liquid level to drop suddenly, the level alarm 11 will immediately trigger an early warning, and the staff can troubleshoot the fault in time to avoid electrolyte overflow or circulation interruption.

[0044] Stirring Stage: Simultaneously with the electrolyte circulation and filtration, the drive motor 2 on the outside of the electrolytic cell 1 starts, and the main shaft 8, connected to the surface of the electrolytic cell 1 through its output end, begins to rotate. Multiple stirring plates 9, evenly spaced around the main shaft 8, rotate synchronously with it. During rotation, the stirring plates 9 thoroughly stir the electrolyte within the electrolytic cell 1, breaking up localized uneven concentrations and temperatures, resulting in a more uniform distribution of electrolyte composition and temperature. This provides a stable reaction environment for the electrode reactions, further ensuring electrolysis efficiency and product quality.

[0045] Auxiliary operation steps: When electrolysis production is completed or the electrolyte needs to be replaced, the valve on the drain pipe installed on the outside of the electrolytic cell 1 can be opened to drain the electrolyte or waste liquid in the electrolytic cell 1; the operating status of the entire device (such as the start and stop of the circulating pump 7, the speed of the drive motor 2, and the switch of the liquid level alarm 11) can be centrally controlled through the controller 6 on the outside of the electrolytic cell 1, which improves the convenience of operation.

[0046] It should be noted that all components used in this application are standard parts that can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art. The electrical equipment is connected to an external safe power source. These will not be described in detail here.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An electrolyte circulation and filtration device for an electrolytic cell, comprising an electrolytic cell (1), characterized in that, An installation frame (5) is installed at one end of the top of the electrolytic cell (1). A circulation bucket (4) is fixed on the installation frame (5). A support ring (12) is supported on the circulation bucket (4). A connecting rod (13) is provided on the bottom surface of the support ring (12). A filter cover (14) is installed at the bottom of the connecting rod (13). A circulation pump (7) is installed on the outer surface of the electrolytic cell (1). The input end of the circulation pump (7) is connected to the electrolytic cell (1) through a pipe. A return pipe (3) is installed at the output end of the circulation pump (7). A liquid level alarm (11) is embedded in the inner wall of the circulation bucket (4).

2. The electrolyte circulation filtration device for an electrolytic cell according to claim 1, characterized in that, A drive motor (2) is installed on the outer surface of the electrolytic cell (1). The output end of the drive motor (2) passes through the surface of the electrolytic cell (1) and is connected to a main shaft (8). A stirring plate (9) is installed on the periphery of the main shaft (8).

3. The electrolyte circulation filtration device for an electrolytic cell according to claim 1, characterized in that, The electrolytic cell (1) is equipped with a support grid plate (10).

4. The electrolyte circulation filtration device for an electrolytic cell according to claim 2, characterized in that, Multiple stirring plates (9) are installed, and the multiple stirring plates (9) are equidistant from each other on the side of the main shaft (8).

5. The electrolyte circulation filtration device for an electrolytic cell according to claim 1, characterized in that, A drain pipe is installed through the outer surface of the electrolytic cell (1), and a valve is installed on the drain pipe.

6. The electrolyte circulation filtration device for an electrolytic cell according to claim 1, characterized in that, A controller (6) is installed on the outer surface of the electrolytic cell (1).

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