High purity rare earth metal electrolytic cell and production method

Abstract

The application provides a high-purity rare earth metal electrolytic cell and a production method, and belongs to the technical field of electrolytic cells. The high-purity rare earth metal electrolytic cell and the production method comprise an electrolytic cell body, a device table is fixedly installed at the top of the electrolytic cell body, a plurality of anodes are installed on the top surface of the device table, a stand column is fixedly installed on the top surface of the device table, a top plate is fixedly installed at the top end of the stand column, a deposited metal separation mechanism is arranged on the bottom surface of the top plate, and a cathode column is arranged in the electrolytic cell body. The deposited metal separation mechanism is arranged, the metal adsorbed at the adsorption part is scraped off to the top of the scraping plate through the clamping of the two scraping plates, and then falls into the collection cavity, so that the metal adsorbed at the adsorption part can be automatically scraped and collected, manual collection is replaced, and the problem of slow collection efficiency affecting production efficiency is avoided.

Description

Technical Field

[0001] This invention relates to the field of electrolytic cell technology, and more specifically, to a high-purity rare earth metal electrolytic cell and its production method. Background Technology

[0002] High-purity rare earth metal electrolytic cells are key equipment used to extract high-purity rare earth metals from rare earth oxides through molten salt electrolysis. They typically employ a fluoride electrolysis system, in which rare earth oxides are added to a high-temperature molten fluoride electrolyte. Under an inert gas atmosphere, direct current is applied, and the rare earth oxides dissolve under high temperature and with the aid of molten salt. Rare earth metal ions move towards the cathode under the influence of the electric field and gain electrons, thus being reduced to metals. Meanwhile, oxygen reacts with the graphite material at the anode to form a gas that volatilizes.

[0003] However, existing electrolytic cells still have some problems in actual use. For example, in the process of processing rare earth metals, existing electrolytic cells cannot achieve automatic unloading, that is, they cannot automatically scrape off and collect the metal adsorbed by the cathode. Manual scraping is required, which greatly reduces production efficiency. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a high-purity rare earth metal electrolytic cell and production method that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows:

[0006] This invention provides a high-purity rare earth metal electrolytic cell, including an electrolytic cell body, an equipment platform fixedly installed on the top of the electrolytic cell body, a plurality of anodes installed on the top surface of the equipment platform, a column fixedly installed on the top surface of the equipment platform, a top plate fixedly installed on the top of the column, a deposited metal separation mechanism provided on the bottom surface of the top plate, a cathode column provided inside the electrolytic cell body, and a floating mechanism provided on the top surface of the top plate.

[0007] The deposited metal separation mechanism includes a collection tray, which is fixedly installed in the middle of the bottom surface of the top plate. A circular partition plate is fixedly installed inside the collection tray. The height of the circular partition plate is less than the height of the collection tray. A collection cavity is separated between the collection tray and the circular partition plate. A scraper plate is provided on the top of the circular partition plate. The deposited metal separation mechanism is used to scrape and collect the deposited metal outside the cathode column.

[0008] In a preferred embodiment, there are two scraper blades, and each of the two scraper blades is fixedly connected to a snap-fit ​​plate on its outer side. The snap-fit ​​plate is movably snapped into the inside of the collection tray, and its outer end extends to the outside of the collection tray. A roller is rotatably installed at one end of the snap-fit ​​plate on the outside of the collection tray. The cathode column is located between the two scraper blades. A positioning block is fixedly installed at the top of the snap-fit ​​plate. A return spring is fixedly connected between one side of the positioning block and the outer surface of the collection tray. Magnet blocks are fixedly installed on the opposite sides of the two scraper blades.

[0009] In a preferred embodiment, a limiting frame is fixedly installed on the bottom surface of the scraper, and a groove adapted to the limiting frame is opened on the top surface of the circular partition plate for stable movement of the scraper. A contact plate and a base plate are fixedly installed on the outer surface of the cathode column, and an adsorption part is provided between the contact plate and the base plate. A welding plate is provided above the top plate, and a positioning frame is fixedly installed on the top of the anode. A steel cable is fixedly connected between the positioning frame and the welding plate, and the steel cable is attached to the outside of the roller.

[0010] In a preferred embodiment, the bottom surface of the contact plate is conical, and the top surface of the scraper extends at a slope toward the collection chamber.

[0011] In a preferred embodiment, the buoyancy mechanism includes a mounting plate, which is fixedly mounted on the top surface of a top plate. An internal gear disc is rotatably engaged inside the mounting plate. A positioning plate with a rectangular groove is fixedly mounted on the inner wall of the internal gear disc. Four fixing frames are fixedly mounted on the top surface of the positioning plate. A rotating shaft is rotatably mounted inside each fixing frame. A lifting frame is provided above the internal gear disc. Connecting frames two are rotatably mounted on all four sides of the lifting frame. A connecting frame one is fixedly mounted on one end of the rotating shaft. One end of the connecting frame one is movably connected to one end of the connecting frame two. The cathode column is mounted on the bottom surface of the lifting frame.

[0012] In a preferred embodiment, an outer gear disk is fixedly mounted on the outer surface of the inner gear disk, a mounting frame is fixedly mounted on the top surface of the top plate, a motor is fixedly mounted inside the mounting frame, a second gear is fixedly connected to the output end of the motor, the second gear meshes with the outer gear disk, and the welding plate is fixedly mounted on the top of the lifting frame.

[0013] In a preferred embodiment, an automatic feeding mechanism is provided on both sides of the top plate. The automatic feeding mechanism includes an extension plate, which is fixedly installed on the outer side of the top plate. An installation shaft is rotatably installed on the top surface of the extension plate. A gear three is fixedly installed on the outer surface of the installation shaft. The gear three meshes with an external gear disc. A rectangular plate is fixedly installed at the top end of the installation shaft. A connecting block is rotatably installed at the top end of the rectangular plate. A fixing rod one is movably inserted into the inside of the connecting block. An external frame is fixedly installed at both ends of the fixing rod one. A fixing rod two is fixedly installed on the inner side of the external frame. A connecting shaft is fixedly installed on the outer surface of the fixing rod two. A vertical frame is fixedly installed on the top surface of the extension plate. The connecting shaft is movably inserted into the inside of the vertical frame.

[0014] In a preferred embodiment, a vertical plate is fixedly installed on the top surface of the equipment platform, and a C-shaped frame is fixedly installed on the inner side of the vertical plate. The C-shaped frame has an insertion slot inside, and a movable plate is movably engaged inside the insertion slot. A storage cylinder is fixedly installed inside the movable plate. A hopper is fixedly installed on the top surface of the C-shaped frame, and a discharge cylinder is fixedly connected to the bottom surface of the hopper. The bottom surface of the discharge cylinder is in close contact with the top surface of the movable plate, and the diameter of the discharge cylinder is equal to the diameter of the storage cylinder. A sealing frame is fixedly installed on the bottom surface of the C-shaped frame for sealing the storage cylinder.

[0015] In a preferred embodiment, a guide plate is fixedly installed on the inner side of the upright plate, the guide plate is located below the storage cylinder, a push rod is movably engaged on one side of the C-shaped frame, one end of the push rod is fixedly connected to one side surface of the moving plate, the other end of the push rod is fixedly connected to a connecting plate, and one end of the plug shaft is fixedly connected to one side surface of the connecting plate.

[0016] A method for electrolytic production of high-purity rare earth metals includes the following steps:

[0017] S1: By controlling the upward movement of the floating mechanism, the cathode column can be driven to move upward synchronously, which can cause the welding plate to move upward, so that the steel cable is gradually tightened. This allows the scraper to move towards the cathode column until the top surface of the bottom plate is in contact with the bottom surface of the scraper, thus achieving the clamping of the two scrapers at the adsorption section. By controlling the downward movement of the lifting frame, the cathode column can be driven towards the interior of the electrolytic cell. Through the clamping of the two scrapers, the metal adsorbed at the adsorption section can be scraped off to the top of the scraper and fall into the interior of the collection chamber.

[0018] S2: Because the top of the scraper is sloping, the metal falling on the top of the scraper can fall smoothly into the collection chamber for unified collection. As the cathode column moves downward, until the bottom surface of the contact plate contacts the top surface of the scraper, the two scrapers attracted by the magnet can be separated smoothly and return to their original position under the action of the reset spring.

[0019] S3: By controlling the motor to start, the second gear can be driven to rotate synchronously during the motor start-up process. Since the second gear meshes with the outer gear plate, it can drive the inner gear plate to rotate inside the mounting plate, and drive the first gear to rotate. When the first gear rotates, it can drive the rotating shaft to rotate. Under the interaction between the first connecting frame and the second connecting frame, the lifting frame can be driven to move upward, thereby driving the cathode column to detach from the inside of the electrolytic cell, realizing the purpose of driving the cathode column to move up and down automatically, replacing the existing manual operation.

[0020] S4: During the automatic collection of adsorbed metal as the cathode column rises, the push rod moves back and forth within the C-frame, which in turn drives the moving plate to move synchronously within the insertion slot. When the storage cylinder inside the moving plate overlaps with the discharge cylinder, the raw material inside the hopper falls into the storage cylinder. The bottom of the storage cylinder is blocked by the sealing frame, preventing the raw material from falling downwards. As the moving plate moves, the raw material inside the storage cylinder falls downwards when the bottom of the storage cylinder detaches from the sealing frame. Guided by the guide plate, the raw material enters the electrolytic cell. In other words, the addition of raw material is achieved simultaneously during the automatic scraping process, further increasing production efficiency.

[0021] The present invention provides a high-purity rare earth metal electrolytic cell, the beneficial effects of which include:

[0022] 1. By setting up a metal separation mechanism, the metal adsorbed at the adsorption section can be scraped off to the top of the scraper by the clamping of two scraper plates, and then fall into the inside of the collection chamber. This achieves the purpose of automatically scraping and collecting the metal adsorbed at the adsorption section, replacing the existing manual collection and avoiding the problem of slow collection efficiency affecting production efficiency.

[0023] 2. By setting up a floating mechanism and controlling the motor to start, the second gear can be driven to rotate synchronously during the motor's start-up process. Since the second gear meshes with the outer gear plate, it can drive the inner gear plate to rotate inside the mounting plate, thereby driving the first gear to rotate. When the first gear rotates, it can drive the rotating shaft to rotate. Under the interaction between the first connecting frame and the second connecting frame, the lifting frame can be driven to move upward, thereby driving the cathode column to detach from the inside of the electrolytic cell. This achieves the purpose of automatically moving the cathode column up and down, replacing the existing manual operation, and further improving the overall electrolysis efficiency of the device.

[0024] 3. By setting up an automatic feeding mechanism, the push rod can be driven to move back and forth inside the C-frame during the reciprocating motion of the insertion shaft. This, in turn, drives the moving plate to move synchronously inside the insertion slot. When the storage cylinder inside the moving plate overlaps with the feeding cylinder, the raw material inside the hopper falls into the storage cylinder. The bottom surface of the storage cylinder is blocked by the sealing frame, so the raw material does not fall downwards. As the moving plate moves, the raw material inside the storage cylinder falls downwards when the bottom surface of the storage cylinder is removed from the sealing frame. It is then guided into the electrolytic cell by the guide plate. In other words, the addition of raw material can be achieved simultaneously during the automatic scraping process, thereby further increasing production efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is an overall perspective view provided by an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the buoyancy mechanism provided for an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of the overall top structure provided for an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the deposition metal separation mechanism provided for an embodiment of the present invention;

[0030] Figure 5 A schematic diagram of the scraper structure provided for an embodiment of the present invention;

[0031] Figure 6 A schematic diagram of the overall front view structure provided for an embodiment of the present invention;

[0032] Figure 7 Provided for the embodiments of the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0033] Figure 8 A schematic diagram of the hopper structure provided for an embodiment of the present invention.

[0034] In the diagram: 1. Electrolytic cell body; 2. Equipment platform; 3. Anode; 4. Column; 5. Top plate; 6. Floating mechanism; 61. Mounting plate; 62. Internal gear plate; 63. External gear plate; 64. Fixing frame; 65. Rotating shaft; 66. Gear 1; 67. Connecting frame 1; 68. Connecting frame 2; 69. Lifting frame; 610. Mounting frame; 611. Motor; 612. Gear 2; 7. Cathode column; 8. Deposited metal separation mechanism; 81. Collection plate; 82. Circular partition plate; 83. Scraper; 84. Snap-fit ​​plate; 85. Roller; 86. Positioning block; 87. Return spring; 88. Magnet block; 89. Limiting frame; 8 10. Positioning frame; 811. Welding plate; 812. Steel cable; 9. Automatic feeding mechanism; 91. Extension plate; 92. Mounting shaft; 93. Gear three; 94. Rectangular plate; 95. Connecting block; 96. Fixing rod one; 97. External frame; 98. Fixing rod two; 99. Vertical frame; 910. Insertion shaft; 911. Connecting plate; 912. C-shaped frame; 913. Push rod; 914. Vertical plate; 915. Insertion slot; 916. Moving plate; 917. Storage cylinder; 918. Sealing frame; 919. Discharge cylinder; 920. Hopper; 921. Guide plate; 10. Contact plate; 11. Base plate; 12. Adsorption section. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Reference Figures 1-8 The present invention provides a technical solution: a high-purity rare earth metal electrolytic cell, including an electrolytic cell body 1, an equipment platform 2 fixedly installed on the top of the electrolytic cell body 1, a plurality of anodes 3 installed on the top surface of the equipment platform 2, a column 4 fixedly installed on the top surface of the equipment platform 2, a top plate 5 fixedly installed on the top of the column 4, a deposited metal separation mechanism 8 provided on the bottom surface of the top plate 5, a cathode column 7 provided inside the electrolytic cell body 1, and a floating mechanism 6 provided on the top surface of the top plate 5;

[0037] The deposited metal separation mechanism 8 includes a collection tray 81, which is fixedly installed in the middle of the bottom surface of the top plate 5. A circular partition plate 82 is fixedly installed inside the collection tray 81. The height of the circular partition plate 82 is less than the height of the collection tray 81. A collection chamber is separated between the collection tray 81 and the circular partition plate 82. A scraper plate 83 is provided on the top of the circular partition plate 82. The deposited metal separation mechanism 8 is configured to scrape and collect the deposited metal outside the cathode column 7.

[0038] There are two scraper blades 83. Each scraper blade 83 has a locking plate 84 fixedly connected to its outer side. The locking plate 84 is movably locked inside the collecting tray 81, with its outer end extending to the outside of the collecting tray 81. A roller 85 is rotatably mounted on the outer end of the locking plate 84 located on the collecting tray 81. The cathode column 7 is located between the two scraper blades 83. A positioning block 86 is fixedly mounted on the top of the locking plate 84. A return spring 87 is fixedly connected between one side of the positioning block 86 and the outer surface of the collecting tray 81. Magnet blocks are fixedly mounted on the opposite sides of the two scraper blades 83. 88. A limiting frame 89 is fixedly installed on the bottom surface of the scraper 83. A groove adapted to the limiting frame 89 is opened on the top surface of the circular partition plate 82 for the stable movement of the scraper 83. A contact plate 10 and a base plate 11 are fixedly installed on the outer surface of the cathode column 7. An adsorption part 12 is provided between the contact plate 10 and the base plate 11. A welding plate 811 is provided above the top plate 5. A positioning frame 810 is fixedly installed on the top of the anode 3. A steel cable 812 is fixedly connected between the positioning frame 810 and the welding plate 811. The steel cable 812 is attached to the outside of the roller 85.

[0039] During operation, as the high-purity rare earth elements inside the electrolytic cell 1 decompose, the metallic materials are adsorbed onto the outer surface of the cathode column 7. After the materials inside the electrolytic cell 1 have fully dissolved and reacted, the cathode column 7 can be moved upward by controlling the floating mechanism 6, thus moving the cathode column 7 away from the interior of the electrolytic cell 1. The movement stops when the adsorption part 12 at the bottom of the cathode column 7 is located at the two scraper plates 83. At this point, the upward movement of the lifting frame 69 drives the welding plate 811 to move upward synchronously, thereby gradually tightening the steel cable 812. During the tightening process, the clamping plate 84 moves towards the interior of the collecting tray 81, thereby causing the scraper plates 83 to move towards the cathode column 7. When the top surface of the base plate 11 is in contact with the bottom surface of the scraper 83, the two scraper 83 can tightly clamp the adsorption part 12. Under the adsorption of the magnet block 88, the two scraper 83 can tightly clamp the adsorption part 12. During this process, by controlling the lifting frame 69 to move downward, the cathode column 7 can be driven towards the interior of the electrolytic cell 1. At this time, through the clamping of the two scraper 83, the metal adsorbed at the adsorption part 12 can be scraped off to the top of the scraper 83 and then fall into the interior of the collection chamber. This achieves the purpose of automatically scraping and collecting the metal adsorbed at the adsorption part 12, replacing the existing manual collection and avoiding the problem of slow collection efficiency affecting production efficiency.

[0040] The bottom surface of the contact plate 10 is conical, and the top surface of the scraper plate 83 extends towards the collection chamber. When the scraped metal falls onto the top of the scraper plate 83, the top of the scraper plate 83 is sloping, allowing the metal to fall smoothly into the collection chamber for unified collection. As the cathode column 7 moves downward, the two scraper plates 83 attracted by the magnet block 88 are successfully separated after the bottom surface of the contact plate 10 contacts the top surface of the scraper plate 83. Under the action of the return spring 87, the scraper plates 83 return to their original position, which means that the roller 85 is pressed against the inside of the steel cable 812 again to achieve the next automatic collection.

[0041] The buoyancy mechanism 6 includes a mounting plate 61, which is fixedly mounted on the top surface of the top plate 5. An internal gear plate 62 is rotatably engaged inside the mounting plate 61. A positioning plate with a rectangular groove is fixedly mounted on the inner wall of the internal gear plate 62. Four fixing brackets 64 are fixedly mounted on the top surface of the positioning plate. A rotating shaft 65 is rotatably mounted inside each fixing bracket 64. A lifting frame 69 is provided above the internal gear plate 62. Connecting brackets 68 are rotatably mounted on all four sides of the lifting frame 69. A connecting rod is fixedly mounted at one end of each rotating shaft 65. A frame 67 is connected at one end to a connecting frame 68 at the other end. A cathode column 7 is installed on the bottom surface of a lifting frame 69. An outer gear 63 is fixedly installed on the outer surface of an inner gear disk 62. A mounting frame 610 is fixedly installed on the top surface of a top plate 5. A motor 611 is fixedly installed inside the mounting frame 610. A gear 612 is fixedly connected to the output end of the motor 611. The gear 612 meshes with the outer gear disk 63. A welding plate 811 is fixedly installed on the top of the lifting frame 69.

[0042] During operation, when the metal collection at adsorption section 12 is full, the motor 611 is started. During the start-up process, the motor 611 synchronously drives the gear 612 to rotate. Since the gear 612 meshes with the outer gear disk 63, it drives the inner gear disk 62 to rotate inside the mounting plate 61, thereby driving the gear 66 to rotate. When the gear 66 rotates, it drives the rotating shaft 65 to rotate. Under the interaction between the connecting frame 67 and the connecting frame 68, the lifting frame 69 can be driven to rise, thereby driving the cathode column 7 to detach from the inside of the electrolytic cell 1. This achieves the purpose of automatically moving the cathode column 7 up and down, replacing the existing manual operation, and further improving the overall electrolysis efficiency of the device. Furthermore, during the reversal of the gear 66, the cathode column 7 can be inserted back into the inside of the electrolytic cell 1 for continued metal adsorption.

[0043] Automatic feeding mechanisms 9 are provided on both sides of the top plate 5. Each automatic feeding mechanism 9 includes an extension plate 91, which is fixedly installed on the outer side of the top plate 5. An installation shaft 92 is rotatably mounted on the top surface of the extension plate 91. A gear 93 is fixedly mounted on the outer surface of the installation shaft 92, meshing with an external gear disc 63. A rectangular plate 94 is fixedly mounted on the top of the installation shaft 92, and a connecting block 95 is rotatably mounted on the top of the rectangular plate 94. A fixing rod 96 is movably inserted into the inside of the connecting block 95. External brackets 97 are fixedly mounted at both ends of the fixing rod 96. A fixing rod 98 is fixedly mounted on the inner side of the external bracket 97. A connecting shaft 910 is fixedly mounted on the outer surface of the fixing rod 98. A vertical frame 99 is fixedly mounted on the top surface of the extension plate 91, and the connecting shaft 910 is movably inserted into the inside of the vertical frame 99. A vertical plate 914 is fixedly mounted on the top surface of the equipment platform 2, and a C-shaped frame 912 is fixedly mounted on the inner side of the vertical plate 914. The C-frame 912 has an internal insertion slot 915, inside which a movable plate 916 is movably engaged. A storage cylinder 917 is fixedly installed inside the movable plate 916. A hopper 920 is fixedly installed on the top surface of the C-frame 912, and a discharge cylinder 919 is fixedly connected to the bottom surface of the hopper 920. The bottom surface of the discharge cylinder 919 is tightly fitted with the top surface of the movable plate 916, and the diameter of the discharge cylinder 919 is equal to the diameter of the storage cylinder 917. The bottom surface of the C-frame 912 is fixedly installed with... There is a sealing frame 918 for sealing the storage cylinder 917. A guide plate 921 is fixedly installed on the inner side of the upright plate 914. The guide plate 921 is located below the storage cylinder 917. A push rod 913 is movably engaged on one side of the C-shaped frame 912. One end of the push rod 913 is fixedly connected to one side surface of the moving plate 916. The other end of the push rod 913 is fixedly connected to a connecting plate 911. One end of the plug shaft 910 is fixedly connected to one side surface of the connecting plate 911.

[0044] During operation, as the cathode column 7 rises to automatically collect the adsorbed metal, the rotation of the external gear disk 63 drives the gear 93 to rotate, which in turn drives the mounting shaft 92 to rotate and the rectangular plate 94 to rotate. During this rotation, the fixed rod 96 and the external frame 97 move back and forth, causing the insertion shaft 910 to move back and forth inside the upright frame 99. Since the insertion shaft 910 and the push rod 913 are fixedly connected by a C-shaped frame 912, the back-and-forth movement of the insertion shaft 910 synchronously drives the push rod 913 to move back and forth inside the C-shaped frame 912, thereby driving the moving plate 916. The material moves synchronously inside the insertion slot 915. When the storage cylinder 917 inside the moving plate 916 overlaps with the feeding cylinder 919, the raw material inside the hopper 920 falls into the storage cylinder 917. The bottom surface of the storage cylinder 917 is blocked by the sealing frame 918, so the raw material does not fall downward. As the moving plate 916 moves, the raw material inside the storage cylinder 917 falls downward when the bottom surface of the storage cylinder 917 is separated from the sealing frame 918. It is then guided by the guide plate 921 into the electrolytic cell 1. In other words, the addition of raw material can be realized simultaneously during the automatic scraping process, thereby further increasing the production efficiency.

[0045] A method for electrolytic production of high-purity rare earth metals includes the following steps:

[0046] S1: By controlling the floating mechanism 6 to drive the cathode column 7 to move upward, the welding plate 811 can be driven to move upward synchronously, so that the steel cable 812 is gradually tightened, and the scraper 83 can move towards the cathode column 7 until the top surface of the bottom plate 11 is in contact with the bottom surface of the scraper 83, so that the two scraper 83 clamp the adsorption part 12. By controlling the lifting frame 69 to move downward, the cathode column 7 can be driven towards the interior of the electrolytic cell 1. Through the clamping of the two scraper 83, the metal adsorbed at the adsorption part 12 can be scraped off to the top of the scraper 83 and fall into the interior of the collection chamber.

[0047] S2: Because the top of the scraper plate 83 is a sloping structure, the metal falling on the top of the scraper plate 83 can fall smoothly into the collection chamber for unified collection. As the cathode column 7 moves downward, until the bottom surface of the contact plate 10 contacts the top surface of the scraper plate 83, the two scraper plates 83 attracted by the magnet block 88 can be smoothly separated and return to their original position under the action of the reset spring 87.

[0048] S3: By controlling the start of motor 611, the second gear 612 can be driven to rotate synchronously during the start of motor 611. Since the second gear 612 meshes with the outer gear disk 63, it can drive the inner gear disk 62 to rotate inside the mounting disk 61, and drive the first gear 66 to rotate. When the first gear 66 rotates, it can drive the rotating shaft 65 to rotate. Under the interaction between the first connecting frame 67 and the second connecting frame 68, the lifting frame 69 can be driven to move upward, thereby driving the cathode column 7 to detach from the inside of the electrolytic cell 1, realizing the purpose of driving the cathode column 7 to move up and down automatically, replacing the existing manual operation.

[0049] S4: During the automatic collection of adsorbed metal as the cathode column 7 rises, the push rod 913 moves back and forth inside the C-frame 912 in sync with the back-and-forth movement of the insertion shaft 910. This, in turn, drives the moving plate 916 to move synchronously inside the insertion slot 915. When the storage cylinder 917 inside the moving plate 916 overlaps with the discharge cylinder 919, the raw material inside the hopper 920 falls into the storage cylinder 917. The bottom surface of the storage cylinder 917 is blocked by the sealing frame 918, so the raw material does not fall downwards. As the moving plate 916 moves, the raw material inside the storage cylinder 917 falls downwards when the bottom surface of the storage cylinder 917 is removed from the sealing frame 918. It is then guided by the guide plate 921 into the electrolytic cell 1. In other words, the addition of raw material can be achieved simultaneously during the automatic scraping process, thereby further increasing production efficiency.

[0050] Specifically, the working process or principle of this high-purity rare earth metal electrolytic cell and production method is as follows: During use, as the high-purity rare earth inside the electrolytic cell 1 decomposes, the metal material is adsorbed onto the outer surface of the cathode column 7. After the material inside the electrolytic cell 1 has fully dissolved and reacted, the cathode column 7 can be moved upward by controlling the floating mechanism 6, which moves the cathode column 7 away from the inside of the electrolytic cell 1 until the adsorption part 12 at the bottom of the cathode column 7 is located at the two scraper plates 83, at which point the movement stops. At this time, due to the upward movement of the lifting frame 69, the welding plate 811 can be moved upward synchronously, thereby allowing the steel cable 812 to gradually retract. During the tightening process, the clamping plate 84 moves towards the inside of the collecting tray 81, thereby causing the scraper 83 to move towards the cathode column 7 until the top surface of the base plate 11 is in contact with the bottom surface of the scraper 83. This achieves a tight clamping of the two scraper 83 onto the adsorption section 12. Under the adsorption of the magnet block 88, the two scraper 83 can tightly clamp the adsorption section 12. During this process, by controlling the lifting frame 69 to move downward, the cathode column 7 can be moved towards the inside of the electrolytic cell 1. At this time, through the clamping of the two scraper 83, the metal adsorbed at the adsorption section 12 can be scraped off to the top of the scraper 83. The metal falls into the collection chamber. During the automatic collection of adsorbed metal as the cathode column 7 rises, the rotation of the external gear disc 63 drives the gear 93 to rotate, which in turn drives the mounting shaft 92 to rotate and the rectangular plate 94 to rotate. During this rotation, the fixed rod 96 and the external frame 97 move back and forth, causing the insertion shaft 910 to move back and forth inside the upright frame 99. Since the insertion shaft 910 and the push rod 913 are fixedly connected by a C-shaped frame 912, the back-and-forth movement of the insertion shaft 910 synchronously drives the push rod 913 to move back and forth inside the C-shaped frame 912, thereby driving the movement... The moving plate 916 moves synchronously inside the insertion slot 915. When the storage cylinder 917 inside the moving plate 916 overlaps with the feeding cylinder 919, the raw material inside the hopper 920 falls into the storage cylinder 917. The bottom surface of the storage cylinder 917 is blocked by the sealing frame 918, so the raw material does not fall downward. As the moving plate 916 moves, the raw material inside the storage cylinder 917 falls downward when the bottom surface of the storage cylinder 917 is separated from the sealing frame 918. It is then guided by the guide plate 921 into the electrolytic cell 1. In other words, the addition of raw material can be realized simultaneously during the automatic scraping process, thereby further increasing the production efficiency.

[0051] It should be noted that the anode 3, cathode column 7 and motor 611 are existing devices or equipment, or devices or equipment that can be implemented by existing technology. Their power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail.

Claims

1. A high-purity rare earth metal electrolytic cell, comprising an electrolytic cell body (1), characterized in that, The top of the electrolytic cell (1) is fixedly equipped with an equipment platform (2), a plurality of anodes (3) are installed on the top surface of the equipment platform (2), a column (4) is fixedly installed on the top surface of the equipment platform (2), a top plate (5) is fixedly installed on the top of the column (4), a deposited metal separation mechanism (8) is provided on the bottom surface of the top plate (5), a cathode column (7) is provided inside the electrolytic cell (1), and a floating mechanism (6) is provided on the top surface of the top plate (5). The deposited metal separation mechanism (8) includes a collection tray (81), which is fixedly installed in the middle of the bottom surface of the top plate (5). A circular partition plate (82) is fixedly installed inside the collection tray (81). The height of the circular partition plate (82) is less than the height of the collection tray (81). A collection cavity is separated between the collection tray (81) and the circular partition plate (82). A scraper plate (83) is provided on the top of the circular partition plate (82). The deposited metal separation mechanism (8) is used to scrape and collect the deposited metal outside the cathode column (7). There are two scraper blades (83). Each scraper blade (83) has a snap-fit ​​plate (84) fixedly connected to its outer side. The snap-fit ​​plate (84) is movably snapped into the inside of the collection tray (81) and its outer end extends to the outside of the collection tray (81). A roller (85) is rotatably installed on one end of the snap-fit ​​plate (84) located on the outside of the collection tray (81). The cathode column (7) is located between the two scraper blades (83). A positioning block (86) is fixedly installed on the top of the snap-fit ​​plate (84). A reset spring (87) is fixedly connected between one side of the positioning block (86) and the outer surface of the collection tray (81). A magnet block (88) is fixedly installed on the opposite side of each scraper blade (83). The bottom surface of the scraper (83) is fixedly installed with a limiting frame (89), and the top surface of the circular partition plate (82) is provided with a groove that matches the limiting frame (89) for the stable movement of the scraper (83). The outer surface of the cathode column (7) is fixedly installed with a contact plate (10) and a bottom plate (11). An adsorption part (12) is provided between the contact plate (10) and the bottom plate (11). A welding plate (811) is provided above the top plate (5). A positioning frame (810) is fixedly installed on the top of the anode (3). A steel cable (812) is fixedly connected between the positioning frame (810) and the welding plate (811). The steel cable (812) is attached to the outside of the roller (85). The bottom surface of the contact plate (10) is a conical structure, and the top surface of the scraper (83) extends towards the collection cavity at an angle. The floating mechanism (6) includes a mounting plate (61), which is fixedly installed on the top surface of the top plate (5). An internal gear plate (62) is rotatably engaged inside the mounting plate (61). A positioning plate with a rectangular groove is fixedly installed on the inner wall of the internal gear plate (62). Four fixing frames (64) are fixedly installed on the top surface of the positioning plate. A rotating shaft (65) is rotatably installed inside each fixing frame (64). A lifting frame (69) is provided above the internal gear plate (62). A connecting frame two (68) is rotatably installed on all four sides of the lifting frame (69). A connecting frame one (67) is fixedly installed at one end of the rotating shaft (65). One end of the connecting frame one (67) is movably connected to one end of the connecting frame two (68). The cathode column (7) is installed on the bottom surface of the lifting frame (69). An external gear disc (63) is fixedly installed on the outer surface of the internal gear disc (62). A mounting bracket (610) is fixedly installed on the top surface of the top plate (5). A motor (611) is fixedly installed inside the mounting bracket (610). A gear two (612) is fixedly connected to the output end of the motor (611). The gear two (612) meshes with the external gear disc (63). The welding plate (811) is fixedly installed on the top of the lifting frame (69).

2. The high-purity rare earth metal electrolytic cell according to claim 1, characterized in that, Automatic feeding mechanisms (9) are provided on both sides of the top plate (5). The automatic feeding mechanism (9) includes an extension plate (91). The extension plate (91) is fixedly installed on the outside of the top plate (5). An installation shaft (92) is rotatably installed on the top surface of the extension plate (91). A gear three (93) is fixedly installed on the outer surface of the installation shaft (92). The gear three (93) meshes with the external gear disk (63). A rectangular plate (94) is fixedly installed at the top end of the installation shaft (92). 4) A connecting block (95) is rotatably installed at the top. A fixing rod (96) is movably inserted into the inside of the connecting block (95). An external frame (97) is fixedly installed at both ends of the fixing rod (96). A fixing rod (98) is fixedly installed on the inner side of the external frame (97). A plug shaft (910) is fixedly installed on the outer surface of the fixing rod (98). A stand (99) is fixedly installed on the top surface of the extension plate (91). The plug shaft (910) is movably inserted into the inside of the stand (99).

3. The high-purity rare earth metal electrolytic cell according to claim 2, characterized in that, A vertical plate (914) is fixedly installed on the top surface of the equipment platform (2). A C-shaped frame (912) is fixedly installed on the inner side of the vertical plate (914). A plug-in slot (915) is opened inside the C-shaped frame (912). A movable plate (916) is movably connected inside the plug-in slot (915). A storage cylinder (917) is fixedly installed inside the movable plate (916). A hopper (920) is fixedly installed on the top surface of the C-shaped frame (912). A discharge cylinder (919) is fixedly connected to the bottom surface of the hopper (920). The bottom surface of the discharge cylinder (919) is tightly fitted with the top surface of the movable plate (916). The diameter of the discharge cylinder (919) is equal to the diameter of the storage cylinder (917). A sealing frame (918) is fixedly installed on the bottom surface of the C-shaped frame (912) for sealing the storage cylinder (917).

4. A high-purity rare earth metal electrolytic cell according to claim 3, characterized in that, A guide plate (921) is fixedly installed on the inner side of the upright plate (914). The guide plate (921) is located below the storage cylinder (917). A push rod (913) is movably connected to one side of the C-shaped frame (912). One end of the push rod (913) is fixedly connected to one side surface of the moving plate (916). The other end of the push rod (913) is fixedly connected to a connecting plate (911). One end of the plug shaft (910) is fixedly connected to one side surface of the connecting plate (911).

5. A method for producing high-purity rare earth metals by electrolysis, the method being applicable to the high-purity rare earth metal electrolytic cell described in claim 4, characterized in that, Includes the following steps: S1: By controlling the floating mechanism (6) to drive the cathode column (7) to move upward, the welding plate (811) can be driven to move upward synchronously, so that the steel cable (812) is gradually tightened, and the scraper (83) can move towards the cathode column (7) until the top surface of the bottom plate (11) is in contact with the bottom surface of the scraper (83), so that the two scraper (83) clamp the adsorption part (12). By controlling the lifting frame (69) to move downward, the cathode column (7) can be driven towards the interior of the electrolytic cell (1). Through the clamping of the two scraper (83), the metal adsorbed at the adsorption part (12) can be scraped off to the top of the scraper (83) and fall into the interior of the collection chamber. S2: Since the top of the scraper (83) is a sloping structure, the metal falling on the top of the scraper (83) can fall smoothly into the collection chamber for unified collection. As the cathode column (7) moves downward, until the bottom surface of the contact plate (10) contacts the top surface of the scraper (83), the two scrapers (83) attracted by the magnet block (88) can be separated smoothly and return to their original position under the action of the reset spring (87). S3: By controlling the motor (611) to start, the second gear (612) can be driven to rotate synchronously during the start-up process of the motor (611). Since the second gear (612) meshes with the outer gear disk (63), it can drive the inner gear disk (62) to rotate inside the mounting disk (61), and drive the first gear (66) to rotate. When the first gear (66) rotates, it can drive the rotating shaft (65) to rotate. Under the interaction between the first connecting frame (67) and the second connecting frame (68), it can drive the lifting frame (69) to move upward, thereby driving the cathode column (7) to leave the inside of the electrolytic cell (1), realizing the purpose of driving the cathode column (7) to move up and down automatically, replacing the existing manual operation. S4: During the automatic collection of adsorbed metal as the cathode column (7) rises, the push rod (913) moves back and forth within the C-frame (912) synchronously during the reciprocating motion of the insertion shaft (910), thereby driving the moving plate (916) to move synchronously within the insertion slot (915). When the storage cylinder (917) inside the moving plate (916) overlaps with the discharge cylinder (919), the raw material inside the hopper (920) falls into the storage cylinder (917). Inside, the bottom surface of the storage cylinder (917) is blocked by the sealing frame (918), so the raw material will not fall down. As the moving plate (916) moves, the raw material inside the storage cylinder (917) will fall down when the bottom surface of the storage cylinder (917) is separated from the sealing frame (918). The raw material will then be guided into the interior of the electrolytic cell (1) by the guide plate (921). In other words, the addition of raw material can be realized simultaneously during the automatic scraping process, thereby further increasing the production efficiency.

Images