Automatic electrolyte circulation system based on rare earth electrolytic cell electrode switching mechanism

Abstract

The present invention relates to the technical field of electrolytic cells, and specifically to an automatic electrolyte circulation system based on an electrode switching mechanism of a rare earth electrolytic cell, comprising an electrolytic cell, wherein pole mounting devices are arranged at both ends of the electrolytic cell, wherein the pole mounting device comprises a fixing frame fixedly connected to both ends of the electrolytic cell, wherein a switching mechanism is arranged inside the fixing frame near the electrolytic cell, wherein a docking column is arranged inside the fixing frame above the switching mechanism, wherein the docking column comprises a column fixedly connected to the fixing frame, wherein a plurality of straight grooves are symmetrically provided on the circumferential outer wall of the lower section of the column, wherein an oblique groove is provided on the circumferential outer wall of the column between the straight grooves, wherein the switching mechanism comprises a mounting seat, wherein a turntable is rotatably connected inside the mounting seat. The present invention realizes precise rotation and switching of the turntable by using a switching mechanism through a docking rod 2, a docking bolt and a docking column, and utilizes a top rod, a limiting arm, a slider and an oblique groove, so as to quickly replace the poles and avoid the traditional complicated shutdown process.

Description

Technical Field

[0001] The invention relates to the technical field of electrolytic cells, and in particular to an automatic electrolyte circulation system based on an electrode switching mechanism of a rare earth electrolytic cell. Background Art

[0002] In the production of rare earth metals, the rare earth electrolytic cell is the core equipment, which consists of a cell body, an anode, and a cathode. The anode and cathode chambers are partially separated by a diaphragm. The electrolyte is mostly a molten salt system mixed with rare earth chlorides and alkali metals or alkaline earth metal chlorides to ensure that the melting point and conductivity meet the electrolysis requirements.

[0003] Graphite is often used as anode material in rare earth electrolysis. The anode material needs to undergo continuous oxidation reaction and consume the anode continuously, which lengthens the distance between electrodes, disrupts the electric field distribution, and reduces the electrolysis efficiency. Because the electrolytic cell is hot, filled with highly corrosive electrolyte and carries high voltage, the existing technology requires a complicated process such as shutdown, emptying, and cooling before replacing the anode. The working space is narrow, and it is very easy to damage the cell and the line when disassembling and installing with professional tools. The manpower and time costs are high, interrupting the continuity of production, and it takes a long time to debug after restarting to run stably.

[0004] Although the cathode does not directly participate in violent oxidation, under long-term electrolysis, a large amount of metal ions are deposited to change its surface properties, impurities gather to form an interference layer, and electrolyte parameters are out of control, causing material degradation, all of which force the cathode to be replaced. However, similar to the dilemma of replacing the anode, the closed and narrow electrolytic cell, complex internal layout and residual corrosion make it difficult to dismantle and replace the new cathode, which is both labor-intensive and seriously affects production capacity and benefits. Summary of the invention

[0005] The present invention discloses an automatic electrolyte circulation system based on a rare earth electrolytic cell electrode switching mechanism, which solves the problem that the replacement of anode and cathode materials in the prior art mentioned in the above background technology is too troublesome and takes a long time, and also wastes manpower and financial resources.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide an automatic electrolyte circulation system based on a rare earth electrolytic cell electrode switching mechanism, comprising an electrolytic cell, wherein both ends of the electrolytic cell are provided with an electrode mounting device, wherein the electrode mounting device comprises a fixing frame fixedly connected to both ends of the electrolytic cell, wherein a switching mechanism is provided inside the fixing frame near the electrolytic cell, and a docking column is provided inside the fixing frame above the switching mechanism;

[0007] The docking column comprises a column fixedly connected to a fixing frame, a plurality of straight grooves are symmetrically provided on the circumferential outer wall of the lower section of the column, and an oblique groove is provided on the circumferential outer wall of the column between the straight grooves;

[0008] The switching mechanism comprises a mounting seat, a turntable is rotatably connected inside the mounting seat, a plurality of mounting holes are formed through the top of the turntable, and a fixing component is slidably connected inside the mounting hole;

[0009] The fixing assembly includes a fixing shell, a connecting arm slidably connected to the mounting hole is provided on the top of the fixing shell, a docking slider is slidably connected to the center position of the fixing shell, a connecting rod is provided on the top of the docking slider, and the top end passes through the fixing shell and is fixedly connected to the turntable, a pole is provided at the bottom of the docking slider, clamping arms are slidably connected on both sides of the docking slider inside the fixing shell, a clamping plate is provided at the bottom end of the clamping arm near the pole, a docking rod 2 is provided at the position of the top of the turntable corresponding to the column, the top end of the docking rod 2 passes through the mounting seat and extends to its external position, and a docking bolt is provided at the top end of the docking rod 2 corresponding to the straight groove.

[0010] The present invention is further configured such that one end of the inclined groove is connected to the top end of an adjacent straight groove, and the other end of the inclined groove is connected to the middle position of another adjacent straight groove; a sliding opening is provided inside the straight groove near the middle position; a stopper is slidably connected inside the sliding opening; one end of the stopper located inside the sliding opening is provided with a spring having one end connected to the inner wall of the sliding opening; and the top end of the stopper is inclined.

[0011] The present invention is further configured such that a side of the electrolytic cell away from the pole mounting device is connected to a filtering mechanism via a pipeline, a side of the filtering mechanism close to the electrolytic cell is connected to an extraction mechanism via a pipeline, and one side of the extraction mechanism is connected to the bottom of the electrolytic cell via a pipeline.

[0012] The present invention is further configured such that a docking ring 1 which is slidably connected to the fixing frame is symmetrically arranged on both sides of the mounting seat, and a pushing mechanism whose output end is connected to the docking ring 1 is arranged on both sides of the fixing frame.

[0013] The present invention is further configured such that a docking rod three is arranged inside the fixing frame at a position away from the electrolytic cell, a docking ring two is arranged on the outer wall of the mounting seat near the docking rod three, and the docking ring two is sleeved on the outer wall of the docking rod three and is slidably connected.

[0014] The present invention is further configured as follows: a docking groove is provided on one side of the docking rod three, a top rod is provided on the side of the top of the docking rod three away from the mounting seat, a docking rod one is provided on the top of the mounting seat close to the docking groove, the top end of the docking rod one extends into the interior of the docking groove, a limiting arm is hingedly connected to the top end of the docking rod one, the limiting arm is slidably connected to the inner wall of the docking groove, one end of the limiting arm passes through the docking groove and extends to a position below the top rod, and the limiting arm is provided with a bayonet.

[0015] The present invention is further configured such that an installation opening is provided on one side of an upper end of the docking rod close to the docking groove, a top block is slidably connected inside the installation opening, and an elastic member is provided on one side of the top block located inside the installation opening with one end connected to the inner wall of the installation opening.

[0016] The present invention is further configured such that a limiting sliding groove is provided on the outer wall of the docking slider near the clamping arm, and a limiting sliding groove is provided at the top end of the clamping arm corresponding to the limiting sliding groove.

[0017] Beneficial effects of the automatic electrolyte circulation system based on the rare earth electrolytic cell electrode switching mechanism of the present invention:

[0018] 1. The rapid switching and replacement of the poles is achieved through the coordinated operation of various components in the pole installation device. When the pole of the fixed component inside the electrolytic cell needs to be replaced, the pushing mechanism pushes the docking ring 1 to drive the switching mechanism to rise, and the fixed component located in the electrolytic cell can be pulled out smoothly. In this process, the docking rod 2 and the docking bolt cooperate closely with the docking column. The docking bolt is first docked with the straight slot. With the help of the linkage between the top rod and the limit arm, and the guidance and restriction of the slider and the inclined slot on the docking bolt, the turntable is rotated ninety degrees, so that the fixed component to be replaced can be accurately switched out, and the new fixed component can be easily inserted into the electrolytic cell, which greatly shortens the time for replacing the pole, overcomes the disadvantages of the traditional replacement method that goes through complicated processes such as shutdown, emptying, and cooling, significantly improves the operating efficiency, avoids production interruptions caused by long-term shutdown, and enables the electrolysis process to be carried out efficiently and continuously, stably maintains the rhythm of rare earth electrolysis production, reduces production capacity losses caused by equipment maintenance and replacement, and improves overall production capacity and benefits.

[0019] 2. The traditional operation of replacing anodes and cathodes is very easy to damage the tank body and lines when disassembling and installing with professional tools due to the high temperature, highly corrosive electrolyte and narrow working space inside the electrolytic cell. However, this system relies on the cleverly designed pole installation device. In the closed, narrow and complex internal layout of the electrolytic cell environment, there is no need for too much invasive and complex manual operation, which reduces the probability of contact and collision with the tank body, lines and other components, effectively reduces the risk of damage to the electrolytic cell and its affiliated lines and other equipment, ensures the stability of the equipment, and is conducive to long-term stable production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the following is a detailed description of the present invention with reference to the accompanying drawings.

[0021] Detailed description.

[0022] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Figure 1 It is a three-dimensional structural diagram of an automatic electrolyte circulation system based on a rare earth electrolytic cell electrode switching mechanism of the present invention;

[0024] Figure 2 A side view of an automatic electrolyte circulation system based on a rare earth electrolytic cell electrode switching mechanism of the present invention;

[0025] Figure 3 This is a separation diagram of an automatic electrolyte circulation system based on a rare earth electrolytic cell electrode switching mechanism of the present invention;

[0026] Figure 4 This is an enlarged view of an electrode installation device of an automatic electrolyte circulation system based on an electrode switching mechanism of a rare earth electrolytic cell according to the present invention;

[0027] Figure 5 This is a separation diagram of an electrode installation device of an automatic electrolyte circulation system based on an electrode switching mechanism of a rare earth electrolytic cell according to the present invention;

[0028] Figure 6 It is an exploded top view of a switching mechanism of an automatic electrolyte circulation system based on a rare earth electrolytic cell electrode switching mechanism of the present invention;

[0029] Figure 7 An exploded bottom view of a switching mechanism of an automatic electrolyte circulation system based on a rare earth electrolytic cell electrode switching mechanism of the present invention;

[0030] Figure 8 An exploded cross-sectional view of a switching mechanism of an automatic electrolyte circulation system based on a rare earth electrolytic cell electrode switching mechanism of the present invention;

[0031] Fig. 9 This is an internal structural diagram of a fixed component of an automatic electrolyte circulation system based on an electrode switching mechanism of a rare earth electrolytic cell according to the present invention;

[0032] Fig.10 An exploded view of a fixed component of an automatic electrolyte circulation system based on an electrode switching mechanism of a rare earth electrolytic cell according to the present invention;

[0033] Fig.11 This is an exploded view of a docking rod of an automatic electrolyte circulation system based on an electrode switching mechanism of a rare earth electrolytic cell according to the present invention.

[0034] The markings in the figure are:

[0035] 1. Electrolytic cell; 11. Extraction mechanism; 12. Filtering mechanism;

[0036] 2. Pole mounting device; 21. Fixing frame; 22. Switching mechanism;

[0037] 221, mounting seat; 2211, docking collar 1; 2212, docking collar 2; 2213, docking rod 1; 2214, limit arm; 2215, bayonet; 2216, mounting port; 2217, top block; 2218, docking rod 2; 2219, docking bolt;

[0038] 222, fixing assembly; 2221, fixing shell; 22211, connecting arm; 2222, docking slider; 22221, limiting slide groove; 2223, pole; 2224, connecting rod; 2225, clamping arm; 22251, limiting slider; 2226, clamping plate;

[0039] 223, turntable; 2231, mounting hole;

[0040] 23, docking column; 231, column; 232, inclined groove; 233, straight groove; 234, sliding mouth; 235, stopper; 236, spring;

[0041] 24. Replacement mechanism; 25. Pushing mechanism; 26. Docking rod three; 27. Docking groove; 28. Push rod. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other; the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left" and "right" etc. indicate directions or positional relationships based on directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or a transmission connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements.

[0044] See also Figure 1-Figure 11 , an automatic electrolyte circulation system based on a rare earth electrolytic cell electrode switching mechanism, comprising an electrolytic cell 1, with pole mounting devices 2 arranged at both ends of the electrolytic cell 1, the pole mounting device 2 comprising a fixing frame 21 fixedly connected to both ends of the electrolytic cell 1, a switching mechanism 22 arranged inside the fixing frame 21 near the electrolytic cell 1, and a docking column 23 arranged above the switching mechanism 22 inside the fixing frame 21;

[0045] The docking column 23 includes a column 231 fixedly connected to the fixing frame 21, a plurality of straight grooves 233 are symmetrically opened on the circumferential outer wall of the lower section of the column 231, and an oblique groove 232 is opened on the circumferential outer wall of the column 231 between the straight grooves 233;

[0046] The switching mechanism 22 includes a mounting seat 221, a rotating disk 223 is rotatably connected inside the mounting seat 221, a plurality of mounting holes 2231 are formed through the top of the rotating disk 223, and a fixing assembly 222 is slidably connected inside the mounting holes 2231;

[0047] The fixing assembly 222 includes a fixing shell 2221, a connecting arm 22211 slidably connected to the mounting hole 2231 is arranged on the top of the fixing shell 2221, a docking slider 2222 is slidably connected to the center position of the fixing shell 2221, a connecting rod 2224 is arranged on the top of the docking slider 2222, a pole 2223 is arranged on the bottom of the docking slider 2222, and clamping arms 2225 are slidably connected to the two sides of the docking slider 2222 in the fixing shell 2221, and the clamping arms 2222 are slidably connected to the two sides of the docking slider 2222. A clamping plate 2226 is provided at the bottom near the pole 2223, a docking rod 2218 is provided at the top of the turntable 223 at a position corresponding to the column 231, the top of the docking rod 2218 passes through the mounting seat 221 and extends to the outside thereof, a docking bolt 2219 is provided at the top of the docking rod 2218 at a position corresponding to the straight groove 233, a limiting sliding groove 22221 is provided at the outer wall of the docking slider 2222 near the clamping arm 2225, and a limiting slider 22251 is provided at the top of the clamping arm 2225 at a position corresponding to the limiting sliding groove 22221.

[0048] By adopting the above technical solution, the straight groove 233 and the inclined groove 232 are used to guide the replacement of the pole rod 2223. During the rise, the docking bolt 2219 at the top of the docking rod 2218 docks with the straight groove 233, encounters the top rod 28, causes the limit arm 2214 to flip and disengage, and the docking bolt 2219 moves to the stopper 235, and is guided into the inclined groove 232 by the stopper 235. The column 231 is fixed, and the inclined groove 232 helps the docking bolt 2219 to rotate 90 degrees with the turntable 223 and the fixing assembly 222, and the original fixing assembly 222 is switched out for replacement. After completion, the pushing mechanism 25 pulls the docking ring 1 2211 downward, and the heavy truck docking rod 2218 returns to its original position after the stopper 235 retracts and the limit arm 2214 resets.

[0049] One end of the inclined groove 232 is connected to the top of the adjacent straight groove 233, and the other end of the inclined groove 232 is connected to the middle position of another adjacent straight groove 233. A sliding opening 234 is opened in the middle position inside the straight groove 233, and a stopper 235 is slidably connected inside the sliding opening 234. One end of the stopper 235 located inside the sliding opening 234 is provided with a spring 236 whose one end is connected to the inner wall of the sliding opening 234, and the top of the stopper 235 is inclined.

[0050] By adopting the above technical solution, the docking bolt 2219 moves to the stopper 235 and guides it into the inclined groove 232. Since the column 231 is fixed, the inclined groove 232 limits the docking bolt 2219 from rotating and moving upward, and the turntable 223 and the fixed component 222 are driven to rotate through the docking rod 2218 until the docking bolt 2219 moves along the inclined groove 232 to the next straight groove 233, prompting the turntable 223 to rotate ninety degrees, thereby realizing the switching of the fixed component 222 inside the original electrolytic cell 1. After the switching is completed, the pushing mechanism 25 pulls the docking ring 2211 downward, and the docking bolt 2219 squeezes the stopper 235 to retract it into the sliding port 234. Each component is gradually reset to its initial state, thereby ensuring that the entire pole 2223 replacement mechanism operates stably and orderly.

[0051] The side of the electrolytic cell 1 away from the pole mounting device 2 is connected to a filtering mechanism 12 through a pipeline, the side of the filtering mechanism 12 close to the electrolytic cell 1 is connected to an extraction mechanism 11 through a pipeline, and one side of the extraction mechanism 11 is connected to the bottom of the electrolytic cell 1 through a pipeline.

[0052] By adopting the above technical scheme, the filtering mechanism 12 and the extraction mechanism 11 are connected with the electrolytic cell 1 to form an automatic electrolyte circulation system, which ensures that the electrolyte in the electrolytic cell 1 can continue to circulate and update its state, and provides a stable and suitable working environment for the pole 2223 during electrolysis operation and replacement operation, avoiding adverse conditions such as electrolyte impurity accumulation and component imbalance affecting the system operation and the performance of the pole 2223, and cooperates with the pole 2223 replacement mechanism. When the pole 2223 of the fixed component 222 needs to be replaced, the entire system briefly stops the switching link, and the stability of the circulation system is conducive to the subsequent rapid integration of the new pole 2223 into efficient work, ensuring the continuity and smooth progress of the electrolysis process.

[0053] The mounting seat 221 is symmetrically provided with a docking ring 1 2211 slidably connected to the fixing frame 21 on both sides, and a pushing mechanism 25 whose output end is connected to the docking ring 1 2211 is provided on both sides of the fixing frame 21. A docking rod 3 26 is provided at a position away from the electrolytic cell 1 inside the fixing frame 21, and a docking ring 2212 is provided at a position of the outer wall of the mounting seat 221 near the docking rod 3 26. The docking ring 2212 is sleeved on the outer wall of the docking rod 3 26 and is slidably connected. A docking groove 27 is provided on one side of the docking rod 3 26, and a top rod 28 is provided on the side of the top of the docking rod 3 26 away from the mounting seat 221. The top of the mounting seat 221 is close to the docking groove 27. A docking rod 2213 is provided, the top of the docking rod 2213 extends to the inside of the docking groove 27, the top of the docking rod 2213 is hinged with a limit arm 2214, the limit arm 2214 is slidably connected to the inner wall of the docking groove 27, one end of the limit arm 2214 passes through the docking groove 27 and extends to the position below the top rod 28, the limit arm 2214 is provided with a bayonet 2215, and a mounting opening 2216 is provided on the side of the upper end of the docking rod 2213 close to the docking groove 27, a top block 2217 is slidably connected to the inside of the mounting opening 2216, and an elastic member with one end connected to the inner wall of the mounting opening 2216 is provided on one side of the top block 2217 located inside the mounting opening 2216.

[0054] By adopting the above technical solution, under normal conditions, the bayonet 2215 is stuck on the outside of the docking rod 2218, firmly limiting the rotation of the turntable 223 and the fixing assembly 222. During the replacement process of the pole 2223, the docking rod 2218 rises to drive the docking bolt 2219 to move, and the push rod 28 contacts the limit arm 2214, causing the limit arm 2214 to flip and detach from the docking rod 2218. A series of subsequent actions prompt the pole 2223 to switch. When the switching is completed and the components are returning to their positions, the elastic member assists the push block 2217 to push the limit arm 2214 to reset, thereby jointly ensuring the orderly and stable operation of the entire pole 2223 replacement mechanism.

[0055] The working principle and use process of the embodiment of the present invention are as follows:

[0056] The fixing assembly 222 is provided with multiple groups, one of which is located inside the electrolytic cell 1. A replacement mechanism 24 is provided at the bottom of the inner side of the fixing frame 21 below the switching mechanism 22. The replacement mechanism 24 is used to facilitate the disassembly and replacement of the pole 2223. When the pole 2223 of the fixing assembly 222 located inside the electrolytic cell 1 needs to be replaced, the pushing mechanism 25 drives the entire switching mechanism 22 to rise by pushing the docking ring 2211. When the switching mechanism 22 rises, the fixing assembly 222 located inside the electrolytic cell 1 will be pulled out. While pulling, the connecting rod 2224 and the docking slider 2222 are first pulled through the turntable 223, and the docking slider 2 When 222 is pulled upward, the height of the clamping arm 2225 remains unchanged, but because of the restriction of the limiting grooves 22221 on both sides of the docking slider 2222, the clamping arm 2225 is relatively close to the docking slider 2222, so that the clamping arm 2225 drives the clamping plate 2226 to clamp and restrict the pole 2223 due to the restriction of the limiting grooves 22221 and the downward pressure of its own gravity. As the docking slider 2222 continues to move upward for a certain distance, it will pull the fixed shell 2221 and the remaining components upward through the connecting arm 22211. When the clamping arm 2225 moves upward, it will also synchronously clamp and restrict the pole 2223 to prevent the device from shaking.

[0057] In the normal state, the bayonet 2215 at one end of the limit arm 2214 will be stuck on the outside of the second docking rod 2218 to prevent the turntable 223 and the fixing assembly 222 from rotating. The rise of the second docking rod 2218 will drive the docking bolt 2219 to dock with the straight groove 233 first. When the docking bolt 2219 docks with the straight groove 233, the top rod 28 will also contact the limit arm 2214. When the docking bolt 2219 moves up in the straight groove 233 and approaches the inclined groove 232, the limit arm 2214 will flip due to the restriction of the top rod 28 and thus disengage from the second docking rod 2218. When the limit arm 2214 is disengaged, the docking bolt 2219 will move to the stop block 235. When the limit arm 2214 is squeezed and flipped, one end of it will squeeze the top block 2217 to retract into the installation opening 2216.

[0058] Because the blocking block 235 prevents the docking bolt 2219 from continuing to move along the straight groove 233, and the docking bolt 2219 will be guided by the block 235 into the inclined groove 232. Because the column 231 is fixed, the inclined groove 232 will limit the docking bolt 2219 from rotating upward along its interior. At the same time, the docking bolt 2219 will drive the turntable 223 and the fixed component 222 to rotate through the docking rod 2218. When the docking bolt 2219 moves along the inclined groove 232 to the next straight groove 233, the turntable 223 will rotate ninety degrees, thereby switching out the fixed component 222 originally located inside the electrolytic cell 1, and the new fixed component 222 can be inserted into the electrolytic cell 1 as it falls.

[0059] When the switching is completed, the pushing mechanism 25 pulls the docking ring 1 2211 to drive the entire switching mechanism 22 to move downward along the straight groove 233. When it moves down to the position of the stopper 235, the stopper 235 will retract into the inside of the sliding opening 234 due to the squeezing of the docking bolt 2219. When the docking bolt 2219 passes the stopper 235 and moves downward, the limit arm 2214 will slowly move away from the top rod 28. When it is separated from the top rod 28, the top block 2217 will also push the limit arm 2214 to reset. At the same time, the limit arm 2214 will also fall and reset due to its own gravity, thereby being stuck on the outer wall of the docking rod 2218 to limit it.

[0060] In summary, compared with the prior art, the embodiments of the present invention have the following advantages:

[0061] Advantage 1: The present invention cleverly resolves the difficulties faced by traditional replacement of pole rods 2223 by means of close cooperation of various components in the pole rod installation device 2. When the pole rod 2223 of the fixed assembly 222 in the electrolytic cell 1 needs to be replaced, the pushing mechanism 25 drives the docking collar 1 2211 to cause the switching mechanism 22 to rise and smoothly pull out the old fixed assembly 222 in the electrolytic cell 1. In this process, the docking rod 2218, the docking bolt 2219 and the docking column 23 cooperate with each other. First, the docking bolt 2219 docks with the straight groove 233. As it rises, the top rod 28 interacts with the limit arm 2214, and the docking bolt 2219 is guided by the block 235 and the inclined groove 232, driving the turntable 223 to rotate ninety degrees, realizing the rapid switching of the old and new fixed assemblies 222, avoiding the lengthy and complicated processes such as shutdown, emptying, and cooling required for the traditional replacement of anodes and cathodes, greatly shortening the replacement time, reducing the frequency of production interruptions, effectively ensuring production continuity, and maintaining stable production output.

[0062] Advantage 2: Traditional replacement operation is subject to the high temperature, strong corrosive environment and narrow space inside the electrolytic cell 1. It is very easy to damage the electrolytic cell 1 and the line when using professional tools. However, the present invention relies on the sophisticated design of the pole installation device 2, especially the coordinated operation of the various components in the switching mechanism 22. Without too much invasive and complex manual operation, the probability of contact and collision with key parts such as the cell body and the line in the closed, narrow and complex electrolytic cell 1 is reduced, the hidden danger of equipment damage is reduced, the stable operation of the electrolytic cell 1 and the line is ensured, the overall service life of the equipment is extended, and the equipment maintenance cost and time are saved.

[0063] Advantage 3: The extraction mechanism 11 and the filtering mechanism 12 work together. The extraction mechanism 11 penetrates the bottom of the electrolytic cell 1 and is connected in series with the filtering mechanism 12 through a pipeline to form a high-efficiency electrolyte circulation purification link. The electrolyte is continuously extracted and filtered, and impurities and reaction by-products generated during the electrolysis process are removed in a timely manner. The various parameters of the mixed molten salt system of rare earth chloride and alkali metal or alkaline earth metal chloride are stabilized, creating a stable and reliable electrolysis working environment for the pole 2223, indirectly helping the pole 2223 to maintain good performance, reducing the abnormal degradation of the pole 2223 due to electrolyte deterioration, and further ensuring the efficient and stable development of electrolysis.

[0064] Advantage 4: The traditional operation of replacing the pole 2223 is complicated and difficult, requiring a lot of manpower and a long time, which has high labor costs and affects production efficiency. The present invention relies on the innovative design of the automatic circulation system to simplify the replacement process, shorten the operation time, reduce the dependence on professional manpower, reduce the time loss and manpower consumption caused by replacing the pole 2223, and reduce the cost of equipment damage and maintenance, comprehensively improving the economic benefits and production efficiency of rare earth metal production.

[0065] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic electrolyte circulation system based on a rare earth electrolytic cell electrode switching mechanism, characterized in that: include: An electrolytic cell (1), wherein pole mounting devices (2) are provided at both ends of the electrolytic cell (1), the pole mounting devices (2) comprising a fixing frame (21) fixedly connected to both ends of the electrolytic cell (1), a switching mechanism (22) is provided inside the fixing frame (21) near the electrolytic cell (1), and a docking column (23) is provided inside the fixing frame (21) above the switching mechanism (22); The docking column (23) comprises a column (231) fixedly connected to the fixing frame (21); a plurality of straight grooves (233) are symmetrically provided on the circumferential outer wall of the lower section of the column (231); and an oblique groove (232) is provided on the circumferential outer wall of the column (231) between the straight grooves (233); The switching mechanism (22) comprises a mounting seat (221), a rotating disk (223) is rotatably connected inside the mounting seat (221), a plurality of mounting holes (2231) are formed through the top of the rotating disk (223), and a fixing component (222) is slidably connected inside the mounting hole (2231); The fixing assembly (222) comprises a fixing shell (2221), a connecting arm (22211) slidably connected to the mounting hole (2231) is arranged at the top of the fixing shell (2221), a docking slider (2222) is slidably connected to the center position of the fixing shell (2221), a connecting rod (2224) is arranged at the top of the docking slider (2222), the top of the docking slider (2222) passes through the fixing shell (2221) and is fixedly connected to the rotating disk (223), a pole (2223) is arranged at the bottom of the docking slider (2222), and the fixing shell (2221) is provided with a connecting rod (2224) at the top end thereof. (2221) Inside, clamp arms (2225) are slidably connected to both sides of the docking slider (2222), and a clamp plate (2226) is provided at the bottom of the clamp arm (2225) near the pole (2223), and a docking rod 2 (2218) is provided at the top of the rotating disk (223) at a position corresponding to the column (231), and the top end of the docking rod 2 (2218) passes through the mounting seat (221) and extends to its external position, and a docking bolt (2219) is provided at the top of the docking rod 2 (2218) at a position corresponding to the straight groove (233); A docking ring (2211) slidably connected to the fixing frame (21) is symmetrically arranged on both sides of the mounting seat (221), a pushing mechanism (25) whose output end is connected to the docking ring (2211) is arranged on both sides of the fixing frame (21), a docking rod (26) is arranged at a position away from the electrolytic cell (1) inside the fixing frame (21), a docking ring (2212) is arranged at a position close to the docking rod (26) on the outer wall of the mounting seat (221), the docking ring (2212) is sleeved on the outer wall of the docking rod (26) and slidably connected, and a docking groove (27) is opened on one side of the docking rod (26). ), a top rod (28) is arranged on a side of the top of the docking rod three (26) away from the mounting seat (221), a docking rod one (2213) is arranged on a position of the top of the mounting seat (221) close to the docking groove (27), the top end of the docking rod one (2213) extends into the interior of the docking groove (27), a limit arm (2214) is hingedly connected to the top end of the docking rod one (2213), the limit arm (2214) is slidably connected to the inner wall of the docking groove (27), one end of the limit arm (2214) passes through the docking groove (27) and extends to a position below the top rod (28), and the limit arm (2214) is provided with a bayonet (2215).

2. The automatic electrolyte circulation system based on the electrode switching mechanism of the rare earth electrolytic cell according to claim 1 is characterized in that: One end of the inclined groove (232) is connected to the top end of an adjacent straight groove (233), and the other end of the inclined groove (232) is connected to the middle position of another adjacent straight groove (233). A sliding opening (234) is provided in the middle position of the straight groove (233), and a stopper (235) is slidably connected in the sliding opening (234). A spring (236) is provided at one end of the stopper (235) located in the sliding opening (234), and one end of the stopper (235) is connected to the inner wall of the sliding opening (234). The top end of the stopper (235) is inclined.

3. The automatic electrolyte circulation system based on the electrode switching mechanism of the rare earth electrolytic cell according to claim 1 is characterized in that: The side of the electrolytic cell (1) away from the pole mounting device (2) is connected to a filtering mechanism (12) via a pipeline, the side of the filtering mechanism (12) close to the electrolytic cell (1) is connected to an extraction mechanism (11) via a pipeline, and one side of the extraction mechanism (11) is connected to the bottom of the electrolytic cell (1) via a pipeline.

4. The automatic electrolyte circulation system based on the electrode switching mechanism of the rare earth electrolytic cell according to claim 1 is characterized in that: A mounting opening (2216) is provided on one side of the upper end of the docking rod (2213) close to the docking groove (27); a top block (2217) is slidably connected inside the mounting opening (2216); and an elastic member is provided on one side of the top block (2217) located inside the mounting opening (2216) and connected to the inner wall of the mounting opening (2216).

5. The automatic electrolyte circulation system based on the electrode switching mechanism of the rare earth electrolytic cell according to claim 1 is characterized in that: A limiting sliding groove (22221) is provided on the outer wall of the docking slide block (2222) near the clamping arm (2225), and a limiting sliding groove (22251) is provided at the top end of the clamping arm (2225) corresponding to the limiting sliding groove (22221).

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