CN217839161U - Cluster formula rare earth metal fused salt electrolytic device - Google Patents
Cluster formula rare earth metal fused salt electrolytic device Download PDFInfo
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- CN217839161U CN217839161U CN202220407262.XU CN202220407262U CN217839161U CN 217839161 U CN217839161 U CN 217839161U CN 202220407262 U CN202220407262 U CN 202220407262U CN 217839161 U CN217839161 U CN 217839161U
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Abstract
The utility model relates to a cluster-type rare earth metal fused salt electrolysis device, which comprises an electrolytic bath, a tungsten cathode and a graphite anode, wherein the tungsten cathode is a cluster electrode and is formed by combining a plurality of tungsten electrode modules around the central shaft of the electrolytic bath; the graphite anode is formed by connecting a plurality of graphite electrode modules in parallel around the tungsten cathode, and the length of the graphite anode is more than 2 times of the depth of the inner bore of the electrolytic cell; the electrolysis apparatus further comprises: the cathode lifting assembly is fixedly connected to the top of the tungsten cathode and used for driving the tungsten cathode to lift and fall; the cathode supporting platform is used for fixing the cathode lifting assembly; the anode lifting assemblies are fixedly connected to the tops of the graphite electrode modules one by one and used for respectively driving each graphite electrode module to lift and fall; and the anode lifting platform is used for fixing the anode lifting assembly.
Description
Technical Field
The utility model relates to a tombarthite electrolysis trough equipment technical field especially relates to a cluster formula tombarthite metal fused salt electrolytic device.
Background
Rare earth (Rare earth) is a group of novel functional materials with various characteristics such as electricity, magnetism, light, superconduction, catalysis and biology, comprises seventeen metal elements including lanthanide elements, scandium and yttrium in a periodic table of elements, is an important basic material for the high-tech fields such as information technology, biotechnology, new material and new energy technology and national defense construction, and plays an important role in reforming certain traditional industries such as agriculture, chemical industry, building materials and the like.
At present, the molten salt electrolysis method is one of the main methods for producing mixed and single rare earth metals and alloys in China, is mainly used for extracting some active metals which cannot be prepared in aqueous solution, such as Li, na, K, mg, ti, ta, zr and the like, and has the advantages of higher ionic conductivity, higher diffusion coefficient, lower viscosity, rapid electrode reaction and the like.
In the process of rare earth electrolysis, a medium-sized electrolytic cell with 3000-8000A and a large-sized electrolytic cell with more than ten thousand A are needed, wherein the electrolytic cell is made of graphite, graphite is used as an anode, a tungsten rod is used as a cathode, rare earth metal is prepared by direct current electrolysis, and a tungsten receiving crucible is arranged at the bottom of the electrolytic cell and is used as a molten metal receiver. In the prior art, the graphite anode is generally formed by splicing a plurality of dispersed graphite tiles, so that the graphite anode is consumable under the action of electrochemistry, chemical reaction, molten salt erosion and mechanical force, and the anode can be continuously electrolyzed by consuming a new anode to be replaced after being electrolyzed for a certain time.
At present, when the anode is replaced, the common method is as follows: firstly, the electrolyzed metal is clamped out of the electrolytic bath and poured out, a certain amount of molten salt is scooped out, the molten salt is prevented from overflowing after entering a new anode, then the anode lead is disassembled, the residual part of the old anode is lifted away, dirt falling in the molten salt is cleaned, the new anode is put in to connect the anode lead, the temperature is raised by using alternating current electric arc, after the temperature reaches the electrolysis temperature, the graphite electrode is lifted, and the graphite electrode is put in a tungsten-bearing crucible to be continuously electrified for electrolysis according to the electrolysis operation.
However, in the actual electrolysis process, the service life of the graphite anode is only 50-60 hours on average, and if the graphite anode is used for too long time, the volume of the graphite anode is reduced, the surface area is reduced, and the effective area is reduced. When the surface area is too small, the current density of the anode is the largest, the anode effect is easy to generate, the temperature of the electrolyte is increased, the reduced rare earth metal liquid can be reversely dissolved, the yield of the metal liquid is influenced, and the electrolytic efficiency is obviously reduced due to the increase of the polar distance. Based on this, the graphite anode needs to be frequently replaced, the production efficiency of the rare earth is influenced, and the operation cost is increased.
Further, in the case of a circular electrolytic cell, when the electrolytic current is increased to ten thousand amperes or more, the outer diameter of the tungsten cathode inevitably increases, thereby causing a great increase in the weight of the tungsten cathode and a great increase in the manufacturing cost and production cost.
Furthermore, the cathode lifting system is also a part of the rare earth electrolytic furnace, and the system is mainly used for fixing the cathode in the electrolytic process, preventing the cathode from swinging in the electrolytic process and keeping the cathode in the central position of the electrolytic furnace all the time. Need promote the negative pole out of the electrolytic furnace when the electrolytic furnace is changed or the clearance electrolytic furnace to remove to one side, need artifical supplementary just can realize removing and fixing, adopt fixed pulley formula operating system at present, motor control, long-time the use has wire rope wearing and tearing, the phenomenon of wearing and tearing, grinding off.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a cluster type rare earth metal fused salt electrolysis device, which aims to solve the technical problems existing in the prior art.
The utility model adopts the following technical proposal: a cluster type rare earth metal molten salt electrolysis device comprises an electrolysis bath, a tungsten cathode and a graphite anode, wherein the tungsten cathode is a cluster electrode and is formed by combining a plurality of tungsten electrode modules around the central shaft of the electrolysis bath; the graphite anode is formed by connecting a plurality of graphite electrode modules in parallel around the tungsten cathode;
the electrolysis apparatus further comprises:
the cathode lifting assembly is fixedly connected to the top of the tungsten cathode and used for driving the tungsten cathode to lift and fall;
the cathode supporting platform is used for fixing the cathode lifting assembly;
the anode lifting assemblies are fixedly connected to the tops of the graphite electrode modules one by one and used for respectively driving each graphite electrode module to lift and fall;
and the anode lifting platform is used for fixing the anode lifting assembly.
Preferably, the tungsten electrode module is substantially semi-cylindrical, and a curved surface of the tungsten electrode module faces the graphite anode; the upper parts of the tungsten electrode modules are welded into a whole through a copper plate to form a tungsten cathode.
As a preferable technical scheme, the number of the tungsten electrode modules is more than 4, and the sections of the tungsten electrode modules are relatively uniformly distributed in the electrolytic cell; the distance between two opposite tungsten electrode modules is more than 150mm.
As a preferred technical scheme, the cathode lifting assembly is a spiral lifter, the spiral lifter comprises a cathode driving device, a cathode screw rod matched with the cathode driving device, a cathode guide rail arranged in parallel with the cathode screw rod, and a cathode sliding block driven by the cathode screw rod and assembled on the cathode guide rail in a sliding manner, and the cathode sliding block is fixedly connected to the top of the tungsten cathode so as to drive the tungsten cathode to lift.
According to the preferable technical scheme, the cathode slide block is further provided with a steel plate sleeve, and bakelite for insulation is embedded in the steel plate sleeve.
As a preferred technical scheme, one end of the cathode supporting platform is fixed on a wall or other supports, and the other end of the cathode supporting platform is connected with the cathode lifting assembly; one end of the anode lifting platform is also fixed on a wall or other supports, the other end of the anode lifting platform is connected with the anode lifting assembly, and the anode lifting platform is arranged above the cathode supporting platform.
As a preferred technical scheme, the number of the graphite electrode modules is N, wherein N is more than or equal to 6 and less than or equal to 10; the length of N-1 graphite electrode modules is more than 2 times of the depth of the inner bore of the electrolytic cell, and the length of the rest 1 graphite electrode module is 1.2 times of the depth of the inner bore of the electrolytic cell.
As a preferable technical scheme, the anode lifting assembly comprises N-1 lead screw lifters, and the lead screw lifters are connected with the graphite electrode modules with the length being more than 2 times of the bore depth one by one so as to respectively drive the graphite electrode modules to lift.
As the preferred technical scheme, a positioning chuck is arranged at a position which is 50mm away from the top end of the graphite anode, and a hole matched with the graphite electrode module is formed in the chuck and used for ensuring that the graphite electrode module keeps vertical angle when the graphite electrode module is lifted.
The electrolytic cell comprises an electrolytic cell body, and is characterized by further comprising a water-cooled furnace cover covering the opening of the electrolytic cell, wherein a conductive disc is further arranged on the water-cooled furnace cover, and the graphite anode is fixed on the water-cooled furnace cover through the conductive disc.
As a preferred technical scheme, an anode clamping groove for the graphite electrode module to pass through is arranged on the conductive disc, and the graphite electrode module is fastened on the conductive disc through an anode fastening device; the anode fastening device comprises a hand wheel, a compression nut and a lead screw.
The electrolytic cell further comprises a metal receiver arranged at the bottom of the electrolytic cell, an electrolytic furnace inner shell and an electrolytic furnace outer shell which are arranged outside the electrolytic cell, wherein the electrolytic furnace inner shell and the electrolytic furnace outer shell are steel protective shells without bottoms.
The utility model discloses a technical scheme can reach following beneficial effect:
(1) The utility model realizes the purposes of rare earth fused salt electrolysis capacity expansion and yield increase by adopting the arrangement mode of semi-cylindrical cluster cathodes and increasing the length of anodes.
(2) The utility model discloses a change the tungsten negative pole into cluster electrode among the rare earth metal electrolytic device, and design every tungsten electrode module for the semi-cylindrical, two positions that the negative pole is relative, current density is low for the electric field line distributes and participates in the area of electrolytic reaction between positive pole and negative pole, not only can reduce the input cost, can also reduce electric field interact between the negative pole.
(3) Through the length that increases graphite anode to all installed positive pole lifting unit in the top of every graphite electrode module, when participating in the corresponding graphite electrode module of electrolysis reaction and consuming to be difficult to maintain normal electrolysis reaction, can carry out local cutting and handle, need not whole change, improved production efficiency.
(4) Mechanical lifting assemblies are arranged above the tungsten cathode and the graphite anode, so that the manual operation intensity is reduced.
(5) When the graphite anode is designed, the N-1 graphite electrode modules are designed to be twice as long as the depth of the inner cavity of the electrolytic cell, and one graphite electrode module is remained to be 1.2 times as long as the depth of the inner cavity of the electrolytic cell, so that the electrolytic reaction of rare earth and the tapping operation of metal can be observed conveniently.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below to form a part of the present invention, and the exemplary embodiments and the description thereof of the present invention explain the present invention and do not form an improper limitation to the present invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of a cluster-type molten salt electrolyzer for rare earth metals, which is disclosed in an embodiment of the present invention;
FIG. 2 is a sectional view taken along line F-F of FIG. 1;
FIG. 3 is a cross-sectional view taken along line C-C of FIG. 1;
FIG. 4 is an enlarged view of a portion L of FIG. 1;
FIG. 5 is a sectional view taken along line G-G of FIG. 1;
FIG. 6 is a cross-sectional view taken along line N-N of FIG. 1;
description of reference numerals:
an electrolytic cell 100, an electrolytic furnace inner shell 110, an electrolytic furnace outer shell 120, a metal receiver 130, a water-cooled furnace cover 140; a tungsten cathode 200, a tungsten electrode module 210, a cathode lead 220; a cathode lift assembly 300, a cathode support platform 310; the graphite anode 400, the graphite electrode module 410, the anode lead wire 420, the conductive disc 430, the anode clamping groove 431, the anode fastening device 440, the hand wheel 441, the lead screw 442 and the compression nut 443; an anode lifting assembly 500, an anode lifting platform 510; the chuck 600 is positioned.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. In the description of the present invention, it is noted that the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a cluster-type molten rare earth metal salt electrolyzer provided by the present invention.
The utility model provides a cluster type rare earth metal molten salt electrolysis device, as shown in figures 1-6, the electrolysis device comprises an electrolytic cell 100, a tungsten cathode 200, a graphite anode 400, a cathode lifting assembly 300, a cathode supporting platform 310, an anode lifting assembly 500, an anode lifting platform 510, a water-cooled furnace cover 140, a conductive disc 430, a positioning chuck 600, an electrolytic furnace inner shell 110, an electrolytic furnace outer shell 120 and a metal receiver 130.
In view of the fact that in the prior art large circular rare earth metal molten salt electrolysis cell 100, when the electrolysis current is increased to ten thousand amperes or more, the weight and volume of the tungsten cathode 200 to be used are greatly increased, and the high cost of the large-volume tungsten cathode 200 leads to the increase of the production cost, in a preferred embodiment of the present application, as shown in fig. 2, the tungsten cathode 200 is designed as a cluster electrode, specifically: the plurality of semi-cylindrical tungsten electrode modules 210 are combined around the central axis of the electrolytic cell 100, wherein the curved surface of the semi-cylindrical tungsten electrode modules 210 is opposite to the graphite anode 400, the number of the curved surface can be 4, 6, 8 or more, and the curved surface is uniformly distributed around the central axis of the electrolytic cell 100, the upper parts of the plurality of tungsten electrode modules 210 are welded into a whole through a copper plate, and the cathode lead 220 is connected to the copper plate, as shown in fig. 6, to form the clustered tungsten cathode 200. Specifically, the tungsten cathode 200 is designed to be semicircular in shape: the two cathodes are opposite, the current density is low, and electric field lines can be distributed in a region participating in electrolytic reaction between the anode and the cathode; by adopting the arrangement mode, the weight of the tungsten cathode 200 can be effectively reduced, and the use requirement can be met in a large-sized circular electrolytic tank 100; and the cluster type tungsten cathode 200 can reduce the mutual influence of electric fields between cathodes while reducing the manufacturing cost, thereby improving the production efficiency. Further, the connection between the plurality of tungsten electrode modules 210 and the copper plate is not limited to welding, and any connection method may be used as long as it can achieve firm connection and electrical connection between the two.
In a preferred embodiment, the distance between two opposing tungsten electrode modules 210 in cross-section is greater than 150mm in the tungsten electrode modules 210 arranged around the central axis of the cell 100 to ensure the best electrolytic reaction at the cathode.
Preferably, as shown in fig. 1 and 4, in order to fix the tungsten cathode 200 during the electrolysis process, prevent the tungsten cathode 200 from swinging during the electrolysis process, and keep the tungsten cathode 200 at the center of the electrolytic furnace; and a cathode elevating assembly 300 and a cathode supporting platform 310 are provided above the tungsten cathode 200 in order to facilitate the cathode to be lifted out of the electrolytic furnace and moved to one side when the electrolytic furnace is replaced or cleaned. Wherein the cathode supporting platform 310 is used for fixing the cathode elevating assembly 300; specifically, one end of the cathode supporting platform 310 is fixed on a wall or other supports, and the other end is connected to the cathode lifting assembly 300; further, the cathode support platform 310 may be a triangular support frame, or other shaped support frame that can stably support the cathode elevating assembly 300.
In a preferred embodiment, the cathode lifting assembly 300 is a screw lift that includes a cathode drive, a cathode screw, a cathode guide rail, and a cathode slide. Specifically, the cathode driving device can adopt a driving motor, and the driving motor drives a reduction gearbox to further drive a cathode screw rod to rotate; the cathode guide rail is arranged in parallel with the cathode lead screw, the cathode slide block is driven by the cathode lead screw and is assembled on the cathode guide rail in a sliding mode, the cathode lead screw is driven by the driving motor to drive the cathode slide block to lift, and further, the cathode slide block is fixedly connected to the top of the tungsten cathode 200, so that the height of the tungsten cathode 200 can be adjusted. It should be understood that the above-mentioned solution for moving the slider up and down by providing the screw rod elevator is a common technical means in the art, and is not described herein in detail.
Furthermore, a steel plate sleeve is arranged on the cathode slide block, and bakelite for insulation is embedded in the steel plate sleeve.
In another preferred embodiment, the cathode lifting assembly 300 is a screw elevator that includes a cathode drive and a cathode screw. The cathode driving device still adopts a driving motor, the driving motor drives the worm and the worm wheel to further drive the cathode screw to lift, the tungsten cathode 200 is directly and fixedly connected to the lower end of the cathode screw, and the cathode screw drives the tungsten cathode 200 to realize height adjustment. In specific implementation, the above-mentioned settings are common technical solutions in the prior art, and are not described herein again.
Referring to FIG. 2, in a preferred embodiment, the graphite anode 400 is formed by connecting N graphite electrode modules 410 in parallel around the tungsten cathode 200, preferably 6N 10, and in the preferred example of FIG. 2 7; further, because the part of the graphite anode 400 above the liquid level of the electrolyte is burnt by various hot gases discharged in the electrolysis process, and the part soaked in the electrolyte is consumed by the actions of electrochemistry, chemical reaction, molten salt corrosion and mechanical force, in the prior art, the service life of the graphite anode 400 is only 50-60 hours on average, the consumption cost of the graphite anode 400 accounts for 1/5-1/4 of the production and processing cost of rare earth, and a large amount of time is consumed for replacing the graphite anode 400, so that the production efficiency of rare earth is reduced, therefore, the service life of the graphite anode 400 is prolonged, and the replacement frequency is reduced, in the embodiment, the lengths of N graphite electrode modules 410 are designed to be more than 2 times of the depth of the inner bore of the electrolytic cell 100, and the anode lifting assembly 500 is fixedly connected to the top of each graphite electrode module 410, so that the height of one graphite electrode module 410 below is lifted after being consumed, and the graphite electrode modules are subjected to local cutting treatment and then fall back to the electrolytic cell 100 to continue the electrolysis of rare earth.
In another preferred embodiment, the length of the N-1 graphite electrode modules 410 is designed to be more than 2 times of the depth of the inner bore of the electrolytic cell 100, and the length of the remaining 1 graphite electrode module 410 is 1.2 times of the depth of the inner bore of the electrolytic cell 100, wherein the N-1 graphite electrode modules 410 with the length more than 2 times of the depth of the inner bore can be adjusted in height, cut and fall back to continue electrolysis, and the remaining one graphite electrode module 410 is not connected with the anode lifting assembly 500 any more, but is used for observing the electrolytic reaction of rare earth and facilitating the tapping operation of metal.
Referring to fig. 1 and 4, preferably, the anode lifting assembly 500 is a screw lifter, the number of the screw lifter is N-1, and the screw lifter is used to be connected with N-1 graphite electrode modules 410 with a length greater than 2 times of the depth of the bore one by one to respectively drive each graphite electrode module 410 to lift, and when the loss of a certain graphite electrode module 410 reaches a certain degree, the graphite electrode module is lifted by controlling the corresponding screw lifter, and falls back to the electrolytic cell 100 after being partially cut, so as to continue the electrolysis of rare earth. Specifically, the screw rod lifter includes a driving device, a screw rod, a guide rail and a slider, and the specific arrangement may refer to the above-mentioned embodiments, which are not described herein again. Meanwhile, as can be appreciated by those skilled in the art, the guide rail of the slider may not be provided, and the lifting of the lead screw is adjusted by the driving device to drive the corresponding graphite electrode module 410, and the specific connection mode between the devices is the prior art, and is not described herein again.
Preferably, due to the height limitation of the graphite electrode module 410, as shown in fig. 1, an anode elevating platform 510 is disposed above the cathode supporting platform 310, and the anode elevating platform 510 is the same as the cathode supporting platform 310: one end of the anode lifting component is fixed on a wall or other supports, and the other end of the anode lifting component is connected with the anode lifting component 500; the specific shapes of the cathode elevating assembly 300 and the anode elevating assembly 500 may be the same or different, and any support may be used as long as it can stably support the cathode elevating assembly.
In a preferred embodiment, a positioning chuck 600, fig. 4, is provided at a distance of about 50mm from the top end of the graphite anode 400, and has holes for engaging the graphite electrode module 410 to ensure that the graphite electrode module 410 is maintained at an upright angle when it is raised and lowered.
Referring to fig. 1 and 5, the notch of the electrolytic cell 100 is covered with a water-cooled furnace cover 140 for reducing the content of non-rare earth iron impurities in the product and prolonging the service life of the graphite cell and the anode joint; a conductive plate 430 is further provided on the water-cooled furnace cover 140, and the graphite electrode module 410 is fixed to the water-cooled furnace cover 140 through the conductive plate 430. Further, an anode clamping groove 431 is formed in the conductive disc 430 for the graphite electrode module 410 to pass through, and the graphite electrode module 410 is fastened to the conductive disc 430 through an anode fastening device 440; the anode fastening device 440 includes a handwheel 441, a compression nut 443 and a lead screw 442, and the anode wire 420 is connected to the conductive plate 430.
Referring to fig. 2 and 3, in a preferred embodiment, a metal receiver 130 is disposed at the bottom of the electrolytic cell 100, an inner shell 110 and an outer shell 120 of the electrolytic cell are disposed outside the electrolytic cell 100, and the inner shell 110 and the outer shell 120 of the electrolytic cell are both bottomless steel protective shells, and further, a refractory material can be filled between the inner shell 110 of the electrolytic cell and the side wall of the electrolytic cell 100 to effectively isolate the outer wall of the graphite cell from air, prevent the leakage of the electrolytic solution, and prolong the service life of the electrolytic cell 100.
Compared with the prior art, the utility model has the advantages that:
(1) The utility model realizes the purposes of rare earth fused salt electrolysis capacity expansion and yield increase by adopting the arrangement mode of semi-cylindrical cluster cathodes and increasing the length of anodes.
(2) The utility model discloses a change the tungsten negative pole into cluster electrode among the rare earth metal electrolytic device, and design every tungsten electrode module for the semi-cylindrical, two positions that the negative pole is relative, current density is low for the electric field line distributes and participates in the area of electrolytic reaction between positive pole and negative pole, not only can reduce the input cost, can also reduce electric field interact between the negative pole.
(3) Through the length that increases graphite anode to all installed positive pole lifting unit in the top of every graphite electrode module, consumed to be difficult to maintain normal electrolytic reaction when participating in electrolytic reaction's corresponding graphite electrode module, can carry out local cutting and handle, need not the overall change, improved production efficiency.
(4) Mechanical lifting assemblies are arranged above the tungsten cathode and the graphite anode, so that the manual operation intensity is reduced.
(5) When the graphite anode is designed, the N-1 graphite electrode modules are designed to be twice as long as the depth of the inner bore of the electrolytic cell, and the remaining graphite electrode module is still 1.2 times as long as the depth of the inner bore of the electrolytic cell, so that the electrolytic reaction of rare earth and the tapping operation of metal can be observed conveniently.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.
Claims (12)
1. A cluster-type molten salt electrolyzer for rare-earth metals is composed of electrolyzer, tungsten cathode and graphite anode,
the tungsten cathode is a cluster electrode and is formed by combining a plurality of tungsten electrode modules around the central shaft of the electrolytic bath;
the graphite anode is formed by connecting a plurality of graphite electrode modules in parallel around the tungsten cathode;
the electrolysis apparatus further comprises:
the cathode lifting assembly is fixedly connected to the top of the tungsten cathode and used for driving the tungsten cathode to lift and fall;
the cathode supporting platform is used for fixing the cathode lifting assembly;
the anode lifting assemblies are fixedly connected to the tops of the graphite electrode modules one by one and used for respectively driving each graphite electrode module to lift and fall;
and the anode lifting platform is used for fixing the anode lifting assembly.
2. The electrolyzer of claim 1 characterized in that the tungsten electrode modules are generally semi-cylindrical with the curved surfaces of the tungsten electrode modules facing the graphite anodes; the upper parts of the tungsten electrode modules are welded into a whole through a copper plate to form a tungsten cathode.
3. The electrolysis device according to claim 2, wherein the number of the tungsten electrode modules is greater than 4 and the cross sections are arranged relatively uniformly in the electrolysis cell; the distance between two opposite tungsten electrode modules is more than 150mm.
4. The electrolysis device according to claim 1, wherein the cathode lifting assembly is a screw lifter, the screw lifter comprises a cathode driving device, a cathode lead screw matched with the cathode driving device, a cathode guide rail arranged in parallel with the cathode lead screw, and a cathode slide block driven by the cathode lead screw and slidably assembled on the cathode guide rail, and the cathode slide block is fixedly connected to the top of the tungsten cathode to drive the tungsten cathode to lift.
5. The electrolysis device according to claim 4, wherein the cathode slide block is further provided with a steel plate sleeve, and bakelite for insulation is further embedded in the steel plate sleeve.
6. The electrolysis device according to claim 1, wherein one end of the cathode supporting platform is fixed on a wall or other supports, and the other end is connected with the cathode lifting assembly; one end of the anode lifting platform is also fixed on a wall or other supports, the other end of the anode lifting platform is connected with the anode lifting assembly, and the anode lifting platform is arranged above the cathode supporting platform.
7. The electrolyzer apparatus of claim 1 wherein the number of graphite electrode modules is N, 6. Ltoreq. N.ltoreq.10; wherein the length of N-1 graphite electrode modules is more than 2 times of the depth of the inner bore of the electrolytic cell, and the length of the rest 1 graphite electrode module is 1.2 times of the depth of the inner bore of the electrolytic cell.
8. The electrolysis device according to claim 7, wherein the anode lifting assembly comprises N-1 lead screw lifters, and the lead screw lifters are connected with the graphite electrode modules with the length being more than 2 times of the bore depth one by one so as to respectively drive the lifting of each graphite electrode module.
9. The electrolyzing apparatus as recited in claim 8, wherein a positioning chuck is positioned about 50mm from the top end of said graphite anode, said chuck having holes for engaging said graphite electrode module to ensure that said graphite electrode module maintains a vertical angle when raised and lowered.
10. The electrolysis device according to claim 1, further comprising a water-cooled furnace cover covering the opening of the electrolytic cell, wherein a conductive disc is further arranged on the water-cooled furnace cover, and the graphite anode is fixed on the water-cooled furnace cover through the conductive disc.
11. The electrolysis device according to claim 10, wherein the conductive disc is provided with an anode clamping groove for the graphite electrode module to pass through, and the graphite electrode module is fastened on the conductive disc through an anode fastening device; the anode fastening device comprises a hand wheel, a compression nut and a lead screw.
12. The electrolysis device according to any one of claims 1 to 11, further comprising a metal receiver disposed at the bottom of the electrolysis cell, an inner electrolysis furnace shell and an outer electrolysis furnace shell disposed outside the electrolysis cell, wherein the inner electrolysis furnace shell and the outer electrolysis furnace shell are each a bottomless steel protective shell.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220407262.XU CN217839161U (en) | 2022-02-25 | 2022-02-25 | Cluster formula rare earth metal fused salt electrolytic device |
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| CN202220407262.XU CN217839161U (en) | 2022-02-25 | 2022-02-25 | Cluster formula rare earth metal fused salt electrolytic device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114752967A (en) * | 2022-02-25 | 2022-07-15 | 包头市玺骏稀土有限责任公司 | Cluster type rare earth metal fused salt electrolysis device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114752967A (en) * | 2022-02-25 | 2022-07-15 | 包头市玺骏稀土有限责任公司 | Cluster type rare earth metal fused salt electrolysis device |
| CN114752967B (en) * | 2022-02-25 | 2024-06-18 | 包头市玺骏稀土有限责任公司 | Cluster type rare earth metal molten salt electrolysis device |
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