CN211689259U - Molten salt electrolysis device - Google Patents
Molten salt electrolysis device Download PDFInfo
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- CN211689259U CN211689259U CN201921625359.2U CN201921625359U CN211689259U CN 211689259 U CN211689259 U CN 211689259U CN 201921625359 U CN201921625359 U CN 201921625359U CN 211689259 U CN211689259 U CN 211689259U
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Abstract
The utility model discloses a molten salt electrolysis device, which comprises a heating furnace, a connecting shaft, a crucible, a stirring baffle, an electrode and a driving assembly, wherein the heating furnace comprises a bottom wall and a side wall, the bottom wall and the side wall define a furnace chamber, and the bottom wall is provided with a through hole; the connecting shaft penetrates through the through hole and can rotate, the upper end of the connecting shaft is positioned in the furnace cavity, and the lower end of the connecting shaft is positioned below the bottom wall; the crucible is arranged in the furnace chamber and is not contacted with the heating furnace, the crucible is fixed at the upper end of the connecting shaft, and the crucible is provided with an upper opening; the stirring baffle plate penetrates through the upper opening of the crucible, the lower end of the stirring baffle plate is positioned in the crucible, and the upper end of the stirring baffle plate is fixed at the top end of the side wall of the heating furnace; the electrode is suspended in the crucible, and the electrode is not in contact with the crucible and the stirring baffle; the driving assembly is connected with the lower end of the connecting shaft. The utility model discloses a fused salt electrolytic device can realize automatic machine stirring function, has reduced artifical intensity of labour widely, avoids the operation personnel to operate in dangerous environment, and not only simple structure is convenient for operate, and the electrolysis is efficient moreover, and the metal rate of recovery is high.
Description
Technical Field
The utility model relates to a non ferrous metal material preparation technical field especially relates to a fused salt electrolytic device.
Background
In the molten salt electrolysis method of rare metals and alloys thereof, the up-inserting cathode method has the defects of short upper space, low production efficiency, low automation degree, high labor intensity of workers and the like of an electrolysis device. Therefore, the liquid cathode molten salt electrolysis method is often adopted to produce rare metals, and the method has the advantages of uniform product components, high metal recovery rate, low energy consumption, low cost and the like.
In the liquid cathode method electrolysis process, the diffusion speed of the electrolytically precipitated rare metals and alloys in the liquid to the cathode needs to be strictly controlled, if the precipitated rare metals and alloys are not diffused in time, a coating layer is formed on the liquid cathode, the electrolysis process is adversely affected, and the electrolysis efficiency is reduced. In the liquid cathode method electrolysis process, the stirring operation is simultaneously carried out on the interior of the liquid metal and the interface of the molten salt and the liquid metal, so that the mass transfer efficiency of the rare metal and the alloy in the liquid cathode can be effectively improved, and the electrolysis efficiency is further improved.
At present, a crucible of a molten salt electrolysis device is fixed with an electrode in position in industrial production, stirring operation in the molten salt electrolysis process is realized by mostly adopting stirring of workers or adding a mechanical device on the upper part of an electrolytic cell, the labor intensity of workers is high, the operation environment is dangerous, the adding device is complicated, the upper space of the electrolytic cell is short, the volatilization loss of molten salt is accelerated in the stirring process, the production cost and the energy consumption are increased, the normal work of the electrode is influenced, and the large-scale production is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a fused salt electrolytic device can realize the automatic machine stirring function, has reduced artifical intensity of labour widely, avoids the operation personnel to operate in dangerous environment, and not only simple structure is convenient for operate, and the electrolysis is efficient moreover, and the metal rate of recovery is high.
According to the utility model discloses fused salt electrolytic device, include:
the heating furnace comprises a bottom wall and a side wall extending upwards from the peripheral part of the bottom wall, the bottom wall and the side wall define a furnace chamber, and the bottom wall is provided with a through hole;
the connecting shaft vertically penetrates through the through hole and can horizontally rotate, the upper end of the connecting shaft is positioned in the furnace cavity, and the lower end of the connecting shaft is positioned below the bottom wall;
the crucible is arranged in the furnace chamber, the crucible is not in contact with the heating furnace, the crucible is detachably fixed at the upper end of the connecting shaft, and the crucible is provided with an upper opening;
the stirring baffle penetrates through the upper opening of the crucible, the lower end of the stirring baffle is positioned in the crucible, and the upper end of the stirring baffle is fixed at the top end of the side wall of the heating furnace;
the electrode is suspended in the crucible, and the electrode is not in contact with the crucible or the stirring baffle;
and the driving assembly is connected with the lower end of the connecting shaft so as to drive the connecting shaft and the crucible to synchronously and horizontally rotate.
According to the utility model discloses fused salt electrolytic device, the working process is: pouring molten salt electrolyte to be electrolyzed into a crucible, opening a heating furnace to keep the molten salt electrolyte in a liquid state all the time, starting a driving assembly to enable the crucible and a connecting shaft to synchronously and horizontally rotate, driving the molten salt electrolyte in the crucible to do rotary motion due to the horizontal rotation of the crucible, enabling the molten salt electrolyte and a stirring baffle fixed on the heating furnace to relatively move so as to be uniform, and electrolyzing the molten salt electrolyte in the crucible by a power-on electrode, so that the separated rare metal or alloy can be stirred by utilizing the combined action of the horizontal rotation of the crucible and the stirring baffle in the electrolytic process; because the crucible is detachably fixed on the connecting shaft, after the electrolysis of the molten salt electrolyte in the crucible is completed, the heating furnace, the electrode and the driving assembly can be closed, the crucible is taken out, the molten salt electrolyte is replaced, and then the next round of electrolysis is carried out.
According to the molten salt electrolysis device provided by the embodiment of the utility model, the heating furnace heats the molten salt electrolyte to ensure that the molten salt electrolyte is in a liquid state, so that the electrolysis process is convenient to carry out; the driving assembly drives the connecting shaft and the crucible to horizontally rotate, the position of the stirring baffle plate placed in the crucible is fixed, and the crucible and the stirring baffle plate move relatively, so that molten salt electrolyte can be uniformly stirred under the combined action of the stirring baffle plate and the crucible, the mass transfer efficiency of rare metal and alloy in the liquid cathode is effectively improved, the electrolysis efficiency is further improved, the phenomenon that the separated rare metal and alloy are not diffused in time is avoided, and a coating layer is formed on the liquid cathode to generate adverse effects on electrolysis is avoided; the crucible is detachably fixed on the connecting shaft, and the charging and discharging operations are convenient. To sum up, the utility model discloses fused salt electrolytic device can realize the automatic machine stirring function, has reduced artifical intensity of labour widely, avoids the operation personnel to operate in dangerous environment, and not only simple structure is convenient for operate, and the electrolysis is efficient moreover, and the metal rate of recovery is high.
According to the utility model discloses an embodiment, contactless between the outer peripheral face of connecting axle and the internal perisporium of through-hole.
According to the utility model discloses an embodiment still includes the carousel, and the carousel level sets up in the furnace chamber, and contactless between carousel and the heating furnace, the lower surface of carousel is fixed with the upper end of connecting axle, and the bottom of crucible is fixed with the upper surface detachably of carousel.
According to the utility model discloses further embodiment is formed with positioning groove or location cavity on the upper surface of carousel, the bottom of crucible be equipped with the locating piece of positioning groove or location cavity adaptation, the bottom of crucible and the fixed mode of carousel detachably are the locating piece cooperation in positioning groove or location cavity.
According to the utility model discloses an embodiment, stirring baffle includes diaphragm and riser, and the one end of going up the diaphragm is fixed at the top of the lateral wall of heating furnace, and the other end of going up the diaphragm is fixed with the upper end of riser, and the riser passes the crucible and goes up uncovered, and the lower extreme of riser is close to the bottom of crucible.
According to the utility model discloses further embodiment, the riser is close to in the inside wall of crucible.
According to the utility model discloses further embodiment again, stirring baffle still includes diaphragm down, and lower diaphragm is located the inboard of riser and is close to the bottom of crucible, and the one end of diaphragm is fixed with the lower extreme of riser down, and the other end of diaphragm is the free end down.
According to a still further embodiment of the present invention, the stirring baffle has one or more.
According to the utility model discloses an embodiment, drive assembly includes reducing gear box and motor, and the reducing gear box has input and output, and the input of reducing gear box links to each other with the motor, and the output of reducing gear box links to each other with the lower extreme of connecting axle.
According to the utility model discloses a some embodiments still include the conducting ring, and the conducting ring cover is established on the outer peripheral face of connecting axle and is located the below of the diapire of heating furnace, and connecting axle and crucible are the electric conductor, and equal electric connection between connecting axle and the conducting ring and between connecting axle and the crucible, conducting ring and the upper end of electrode are respectively through the positive pole and the negative pole electric connection of wire and first power.
According to some embodiments of the present invention, the electrode includes a positive electrode and a negative electrode, the positive electrode and the negative electrode are spaced apart from each other, a lower end of the positive electrode and a lower end of the negative electrode are close to the bottom of the crucible, and an upper end of the positive electrode and an upper end of the negative electrode are electrically connected to a positive electrode and a negative electrode of the second power source through wires, respectively.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of a molten salt electrolyzer according to an embodiment of the present invention.
FIG. 2 is a schematic structural view of a molten salt electrolyzer according to another embodiment of the present invention.
Fig. 3 is a schematic top view of the carousel of fig. 1 and 2.
Fig. 4 is a side schematic view of the turntable of fig. 1 and 2.
Figure 5 is a side view schematic of the crucible of figures 1 and 2.
Reference numerals:
molten salt electrolysis apparatus 1000
Connecting shaft 2
Stirring baffle 3
Upper horizontal plate 301, vertical plate 302 and lower horizontal plate 303
Rotary table 4
Crucible 5
Reduction gearbox 601 motor 602
Electrode 10
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
A molten salt electrolyzer 1000 according to an embodiment of the present invention is described below with reference to fig. 1 to 5.
As shown in fig. 1 to 5, a molten salt electrolysis device 1000 according to an embodiment of the present invention includes a heating furnace 1, a connecting shaft 2, a crucible 5, a stirring baffle 3, an electrode 10 and a driving assembly 6, wherein the heating furnace 1 includes a bottom wall 101 and a side wall 102 extending upward from a peripheral portion of the bottom wall 101, the bottom wall 101 and the side wall 102 define a furnace chamber 103, and the bottom wall 101 is provided with a through hole 104; the connecting shaft 2 vertically penetrates through the through hole 104 and can horizontally rotate, the upper end of the connecting shaft 2 is positioned in the furnace cavity 103, and the lower end of the connecting shaft 2 is positioned below the bottom wall 101; the crucible 5 is arranged in the furnace chamber 103, the crucible 5 is not contacted with the heating furnace 1, the crucible 5 is detachably fixed at the upper end of the connecting shaft 2, and the crucible 5 is provided with an upper opening; the stirring baffle 3 penetrates through the upper opening of the crucible 5, the lower end of the stirring baffle 3 is positioned in the crucible 5, and the upper end of the stirring baffle 3 is fixed at the top end of the side wall 102 of the heating furnace 1; the electrode 10 is suspended in the crucible 5, and the electrode 10 is not in contact with the crucible 5 or the electrode 10 is not in contact with the stirring baffle 3; the driving assembly 6 is connected with the lower end of the connecting shaft 2 to drive the connecting shaft 2 and the crucible 5 to synchronously and horizontally rotate.
Specifically, the heating furnace 1 includes a bottom wall 101 and a side wall 102 extending upward from a peripheral portion of the bottom wall 101, the bottom wall 101 and the side wall 102 defining a furnace chamber 103, and the bottom wall 101 being provided with a through hole 104. It can be understood that the crucible 5 can be placed in the furnace chamber 103 of the heating furnace 1, the molten salt electrolyte 12 in the crucible 5 can be heated by the heating furnace 1, the molten salt electrolyte 12 is prevented from being deposited due to low temperature, the molten salt electrolyte 12 is always in a liquid state, the electrolysis process is convenient to carry out, the electrolysis effect is good, and the metal recovery rate is high.
The connecting shaft 2 vertically penetrates through the through hole 104 and can horizontally rotate, the upper end of the connecting shaft 2 is positioned in the furnace cavity 103, and the lower end of the connecting shaft 2 is positioned below the bottom wall 101. Specifically, the connecting shaft 2 vertically penetrates through a through hole 104 in the bottom wall 101 of the heating furnace 1, and the upper end of the connecting shaft 2 is fixedly connected with the bottom of a crucible 5 filled with molten salt electrolyte 12 in a furnace chamber 103, so that the crucible 5 is supported and fixed in the furnace chamber 103; the connecting shaft 2 rotates horizontally, and can drive the crucible 5 fixed on the connecting shaft 2 to rotate horizontally.
The crucible 5 is arranged in the furnace chamber 103, and the crucible 5 is not in contact with the heating furnace 1, so that the crucible 5 is prevented from being rubbed with the heating furnace 1 to influence the rotation of the crucible 5, and the electrolysis efficiency is reduced; the crucible 5 is detachably fixed on the upper end of the connecting shaft 2, so that the crucible 5 can be taken out of or put into the furnace chamber 103 of the heating furnace 1; the crucible 5 has an upper opening, whereby the molten salt electrolyte 12 in the crucible 5 can be replaced in time after the electrolysis is completed.
The stirring baffle 3 penetrates through the upper opening of the crucible 5, the lower end of the stirring baffle 3 is positioned in the crucible 5, and the upper end of the stirring baffle 3 is fixed at the top end of the side wall 102 of the heating furnace 1. Particularly, stirring baffle 3 rigidity and lower extreme are located crucible 5, therefore, when crucible 5 is rotatory along the horizontal direction, stirring baffle 3 and crucible 5 relative motion, realize the stirring operation to the rare metal of appearing and alloy among the electrolytic process, the mass transfer efficiency of rare metal and alloy in liquid cathode has been improved effectively, and then electrolytic efficiency has been improved, the diffusion of the rare metal of having avoided appearing and alloy is untimely, form the coating at liquid cathode, produce adverse effect to the electrolysis, lead to electrolytic efficiency to descend, the metal recovery rate is low, simultaneously, uncovered plus stirring baffle 3 simple structure on crucible 5, 5 upper portion space overall arrangement of crucible is reasonable.
The electrode 10 is suspended in the crucible 5, and the electrode 10 extends into the molten electrolyte in the crucible 5, so that the molten salt electrolyte 12 can be electrolyzed to precipitate rare metal; the electrode 10 is not in contact with the crucible 5 and the electrode 10 is not in contact with the stirring baffle 3, so that the friction between the electrode 10 and the crucible 5 is avoided, the rotation of the crucible 5 is influenced, the electrolysis efficiency is reduced, and meanwhile, the contact between the electrode 10 and the stirring baffle 3 is avoided, and the electrolysis efficiency of the electrode 10 is influenced.
The driving assembly 6 is connected with the lower end of the connecting shaft 2 to drive the connecting shaft 2 and the crucible 5 to synchronously and horizontally rotate. It can be understood that the driving assembly 6 provides power for the rotation of the crucible 5, so that the crucible 5 can rotate relative to the fixed electrode 10 and the stirring baffle 3, the automatic stirring operation is realized, the manual labor intensity is greatly reduced, and the operation of operators in a dangerous environment is avoided.
According to the utility model discloses fused salt electrolytic device 1000, the working process is: pouring molten salt electrolyte 12 to be electrolyzed into the crucible 5, opening the heating furnace 1 to keep the molten salt electrolyte 12 in a liquid state all the time, starting the driving assembly 6 to enable the crucible 5 and the connecting shaft 2 to synchronously rotate horizontally, driving the molten salt electrolyte 12 in the crucible 5 to do rotary motion due to the horizontal rotation of the crucible 5, enabling the molten salt electrolyte 12 and the stirring baffle 3 fixed on the heating furnace 1 to move relatively to be uniform, and electrolyzing the molten salt electrolyte 12 in the crucible 5 by the electrified electrode 10, so that the separated rare metal or alloy can be stirred by the combined action of the horizontal rotation of the crucible 5 and the stirring baffle 3 in the electrolysis process; since the crucible 5 is detachably fixed to the connecting shaft 2, after the electrolysis of the molten salt electrolyte 12 in the crucible 5 is completed, the heating furnace 1, the electrode 10 and the driving assembly 6 can be closed, the crucible 5 is taken out, the molten salt electrolyte 12 is replaced, and then the next round of electrolysis is performed.
According to the molten salt electrolysis device 1000 provided by the embodiment of the utility model, the heating furnace 1 heats the molten salt electrolyte 12 to keep the molten salt electrolyte in a liquid state, so that the electrolysis process is convenient to carry out; the driving assembly 6 drives the connecting shaft 2 and the crucible 5 to horizontally rotate, the position of the stirring baffle 3 placed in the crucible 5 is fixed, and the crucible 5 and the stirring baffle 3 move relatively, so that the molten salt electrolyte 12 can be uniformly stirred under the combined action of the stirring baffle 3 and the crucible 5, the mass transfer efficiency of rare metals and alloys in a liquid cathode is effectively improved, the electrolysis efficiency is further improved, the phenomenon that the separated rare metals and alloys are not diffused in time is avoided, and a coating layer is formed on the liquid cathode to generate adverse effects on electrolysis is avoided; the crucible 5 is detachably fixed on the connecting shaft 2, and the charging and discharging operations are convenient. To sum up, the utility model discloses fused salt electrolytic device 1000 can realize the automatic machine stirring function, has reduced artifical intensity of labour widely, avoids the operation personnel to operate in dangerous environment, and not only simple structure is convenient for operate, and the electrolysis is efficient moreover, and the metal rate of recovery is high.
According to the utility model discloses an embodiment, contactless between the outer peripheral face of connecting axle 2 and the internal perisporium of through-hole 104, from this, avoid producing the friction between the internal perisporium of connecting axle 2 and through-hole 104, influence the horizontal rotation of connecting axle 2 and crucible 5.
According to the utility model discloses an embodiment still includes carousel 4, and 4 levels of carousel set up in furnace chamber 103, contactless between carousel 4 and the heating furnace 1, and the lower surface of carousel 4 is fixed with the upper end of connecting axle 2, and the bottom of crucible 5 is fixed with the upper surface detachably of carousel 4. It can be understood that the upper surface and the lower surface of the rotary table 4 are respectively fixed with the bottom of the crucible 5 and the upper end of the connecting shaft 2, therefore, the contact surface between the crucible 5 and the rotary table 4 is large, and the crucible 5 is stable and convenient to place and stable to rotate.
According to the utility model discloses further embodiment, be formed with positioning groove 401 or location cavity (not shown in the figure) on the upper surface of carousel 4, the bottom of crucible 5 be equipped with positioning groove 401 or the locating piece 501 of location cavity adaptation, the bottom of crucible 5 and the fixed mode of carousel 4 detachably are the cooperation of locating piece 501 in positioning groove 401 or location cavity. It can be understood that, the positioning groove 401 or the positioning cavity on the upper surface of the turntable 4 is matched with the positioning block 501 at the bottom of the crucible 5, the assembly is simple, when the crucible 5 is placed, the crucible 5 and the turntable 4 can be clamped fast and accurately, and when the turntable 4 and the crucible 5 rotate horizontally, the crucible 5 can be clamped on the turntable 4, so that the crucible 5 rotates stably and can be prevented from shifting the crucible 5.
According to the utility model discloses an embodiment, stirring baffle 3 includes diaphragm 301 and riser 302, goes up the one end of diaphragm 301 and fixes at the top of the lateral wall 102 of heating furnace 1, goes up the other end of diaphragm 301 and fixes with the upper end of riser 302, and riser 302 passes crucible 5 and goes up uncovered, and the lower extreme of riser 302 is close to crucible 5's bottom. It can be understood that stirring baffle 3 is fixed through last diaphragm 301, and when 5 horizontal rotation of crucible, stirring baffle 3's riser 302 plays the stirring effect to molten salt electrolyte 12, and the lower extreme of riser 302 is close to crucible 5 bottom, can stir the molten salt electrolyte 12 of crucible 5 bottom for molten salt electrolyte 12 in crucible 5 is stirred evenly, effectively improves the mass transfer efficiency of rare metal and alloy in liquid cathode, and then improves electrolysis efficiency.
It should be noted that the stirring baffle 3 is made of a non-conductive material, and the stirring baffle 3 may be made of ceramic.
According to the utility model discloses further embodiment, riser 302 is close to in the inside wall 102 of crucible 5, and from this, electrode 10 utilizes the space great, can conveniently hang on crucible 5 upper portion and establish electrode 10, and riser 302 can not produce harmful effects to the normal function of electrode 10.
According to the utility model discloses further embodiment again, stirring baffle 3 still includes diaphragm 303 down, diaphragm 303 is located the inboard of riser 302 and is close to the bottom of crucible 5 down, the one end of diaphragm 303 is fixed with the lower extreme of riser 302 down, the other end of diaphragm 303 is the free end down, therefore, the lower diaphragm 303 of stirring baffle 3 can stir the molten salt electrolyte 12 at 5 bottom centers of crucible, make molten salt electrolyte 12 in crucible 5 more even by stirring, can effectively improve the mass transfer efficiency of rare metal and alloy in liquid cathode, and then improve electrolysis efficiency.
According to a still further embodiment of the present invention, there are one or more stirring baffles 3. Specifically, the number of the stirring baffles 3 is determined according to actual conditions.
According to the utility model discloses an embodiment, drive assembly 6 includes reducing gear box 601 and motor 602, and reducing gear box 601 has input and output, and the input of reducing gear box 601 links to each other with motor 602, and the output of reducing gear box 601 links to each other with the lower extreme of connecting axle 2. It can be understood that the motor 602, the reduction gearbox 601 and the connecting shaft 2 are connected in sequence, therefore, the motor 602 and the reduction gearbox 601 can control the rotation speed and the rotation direction of the connecting shaft 2, so that the rotation speed and the rotation direction of the crucible 5 can be changed along with the rotation speed and the rotation direction.
According to some embodiments of the utility model, still include conducting ring 9, the conducting ring 9 cover is established on the outer peripheral face of connecting axle 2 and is located the below of the diapire 101 of heating furnace 1, and connecting axle 2 and crucible 5 are the electric conductor, equal electric connection between connecting axle 2 and the conducting ring 9 and between connecting axle 2 and the crucible 5, and conducting ring 9 and the upper end of electrode 10 are respectively through wire 11 and the anodal and negative pole electric connection of first power 7. It can be understood that the conducting ring 9 is connected with the positive electrode or the negative electrode of the first power supply 7 through the conducting wire 11, the conducting ring 9 is sleeved on the outer peripheral surface of the connecting shaft 2, friction between the connecting shaft 2 and the conducting ring 9 is avoided, the conducting ring 9 and the conducting wire 11 are wound, the connecting shaft 2 is fixedly connected with the crucible 5, and the connecting shaft 2 and the crucible 5 are both conductive, so that the crucible 5 can be used as the positive electrode or the negative electrode for electrolyzing the molten salt electrolyte 12; the electrode 10 is connected to the negative or positive electrode of the first power supply 7 by a wire 11, whereby the electrode 10 can serve as the negative or positive electrode for electrolysis of the molten salt electrolyte 12; the driving assembly 6 drives the connecting shaft 2 to rotate horizontally, the crucible 5 rotates along with the rotating, the stirring baffle 3 stirs the molten salt electrolyte 12, the electrode 10 and the crucible 5 respectively serve as a positive electrode and a negative electrode of an electrolytic reaction, the molten salt electrolyte 12 is electrolyzed, and rare metals are precipitated.
It should be noted that the electrode 10 may be connected to the positive or negative pole of the first power source 7, and the conductive ring 9 may be connected to the negative or positive pole of the first power source 7.
According to some embodiments of the present invention, the electrode 10 includes a positive electrode 1001 and a negative electrode 1002, the positive electrode 1001 and the negative electrode 1002 are disposed at an interval, a lower end of the positive electrode 1001 and a lower end of the negative electrode 1002 are close to the bottom of the crucible 5, and an upper end of the positive electrode 1001 and an upper end of the negative electrode 1002 are electrically connected to the positive electrode and the negative electrode of the second power source 8 through the wires 11, respectively. It can be understood that the positive electrode 1001 and the negative electrode 1002 are suspended above the crucible 5 and are respectively electrically connected with the positive electrode and the negative electrode of the second power supply 8 through the leads 11, the driving assembly 6 drives the connecting shaft 2 to rotate horizontally, the crucible 5 rotates along with the rotating shaft, the stirring baffle 3 stirs the molten salt electrolyte 12, the positive electrode 1001 and the negative electrode 1002 electrolyze the molten salt electrolyte 12 to precipitate rare metals, and the lower end of the positive electrode 1001 and the lower end of the negative electrode 1002 are close to the bottom of the crucible 5, so that the molten salt electrolyte 12 is electrolyzed more completely and the metal recovery rate is high.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (11)
1. A molten salt electrolysis apparatus, comprising:
the heating furnace comprises a bottom wall and a side wall extending upwards from the peripheral part of the bottom wall, the bottom wall and the side wall define a furnace chamber, and the bottom wall is provided with a through hole;
the connecting shaft vertically penetrates through the through hole and can horizontally rotate, the upper end of the connecting shaft is positioned in the furnace cavity, and the lower end of the connecting shaft is positioned below the bottom wall;
the crucible is arranged in the furnace chamber, the crucible is not in contact with the heating furnace, the crucible is detachably fixed at the upper end of the connecting shaft, and the crucible is provided with an upper opening;
the stirring baffle penetrates through the upper opening of the crucible, the lower end of the stirring baffle is positioned in the crucible, and the upper end of the stirring baffle is fixed at the top end of the side wall of the heating furnace;
the electrode is suspended in the crucible, and the electrode is not in contact with the crucible or the stirring baffle;
and the driving assembly is connected with the lower end of the connecting shaft so as to drive the connecting shaft and the crucible to synchronously and horizontally rotate.
2. The molten salt electrolyzer of claim 1 characterized in that there is no contact between the outer peripheral surface of the connecting shaft and the inner peripheral wall of the through-hole.
3. The molten salt electrolysis device according to claim 1, further comprising a turntable horizontally arranged in the furnace cavity, wherein the turntable is not in contact with the heating furnace, the lower surface of the turntable is fixed with the upper end of the connecting shaft, and the bottom of the crucible is detachably fixed with the upper surface of the turntable.
4. The molten salt electrolysis device according to claim 3, wherein a positioning groove or a positioning cavity is formed on the upper surface of the rotary table, a positioning block which is matched with the positioning groove or the positioning cavity is arranged at the bottom of the crucible, and the bottom of the crucible and the rotary table are detachably fixed in a manner that the positioning block is matched in the positioning groove or the positioning cavity.
5. The molten salt electrolyzer of claim 1, characterized in that the stirring baffles comprise an upper transverse plate and a vertical plate, one end of the upper transverse plate is fixed to the top of the side wall of the furnace, the other end of the upper transverse plate is fixed to the upper end of the vertical plate, the vertical plate passes through the upper opening of the crucible, and the lower end of the vertical plate is close to the bottom of the crucible.
6. A molten salt electrolysis device as claimed in claim 5, wherein the risers are adjacent to the inner side wall of the crucible.
7. A molten salt electrolyzer as claimed in claim 6, characterized in that the stirring baffles further comprise a lower cross plate located inside the riser and close to the bottom of the crucible, one end of the lower cross plate being fixed to the lower end of the riser and the other end of the lower cross plate being a free end.
8. A molten salt electrolysis apparatus as claimed in claim 7, wherein there are one or more stirring baffles.
9. A molten salt electrolysis device as claimed in claim 1, wherein the drive assembly includes a reduction gearbox and a motor, the reduction gearbox having an input and an output, the input of the reduction gearbox being connected to the motor and the output of the reduction gearbox being connected to the lower end of the connecting shaft.
10. The molten salt electrolysis device according to any one of claims 1 to 9, further comprising a conductive ring, wherein the conductive ring is sleeved on the outer peripheral surface of the connecting shaft and located below the bottom wall of the heating furnace, the connecting shaft and the crucible are both electric conductors, the connecting shaft and the conductive ring and the connecting shaft and the crucible are both electrically connected, and the conductive ring and the upper end of the electrode are respectively electrically connected with the positive electrode and the negative electrode of the first power supply through wires.
11. A molten salt electrolysis device according to any one of claims 1-9, characterized in that the electrodes comprise a positive electrode and a negative electrode, the positive electrode and the negative electrode being arranged at a spacing, the lower end of the positive electrode and the lower end of the negative electrode being close to the bottom of the crucible, the upper end of the positive electrode and the upper end of the negative electrode being electrically connected with the positive and negative electrodes of a second power source, respectively, by means of wires.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921625359.2U CN211689259U (en) | 2019-09-26 | 2019-09-26 | Molten salt electrolysis device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921625359.2U CN211689259U (en) | 2019-09-26 | 2019-09-26 | Molten salt electrolysis device |
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| CN211689259U true CN211689259U (en) | 2020-10-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499520A (en) * | 2019-09-26 | 2019-11-26 | 中国恩菲工程技术有限公司 | Fused salt electrolysis apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499520A (en) * | 2019-09-26 | 2019-11-26 | 中国恩菲工程技术有限公司 | Fused salt electrolysis apparatus |
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