Electrolysis device with salt draining function
By designing lifting and heating components in the electrolytic device, efficient melting and dripping of molten salt on the cathode is achieved, solving the problem of molten salt solidification on the cathode, and improving the purity and cleaning efficiency of high-purity metals.
Patent Information
- Application Number
- CN202422437407.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-09
AI Technical Summary
During the process of electrolyzing and refining high-purity metals with molten salt, the molten salt adhered to the cathode solidifies during the lifting process, resulting in a large amount of condensation salt in the high-purity metal products, increasing the number of cleanings and oxygen content.
An electrolytic device with a salt drain function is designed. The cathode is driven into the circular channel of the heating assembly through the lifting assembly, and the cathode is heated by an induction coil, so that the adhered molten salt can melt and drip into the electrolytic cell.
Effectively remove molten salt adhered to the cathode, reducing the difficulty of subsequent cleaning, preventing the product from being contaminated and oxidized, and improving the purity of high-purity metals.
Smart Images
Figure CN223134614U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of molten salt electrolytic refining of high-purity metals, and particularly relates to an electrolytic device with a salt draining function. Background Art
[0002] Generally, in the process of molten salt electrolytic refining of high-purity metals, the metal on the anode is selectively dissolved and enters the electrolyte in the form of ions, and then transferred to the cathode to be selectively reduced, so as to obtain high-purity metal on the cathode. Subsequently, the cathode deposited with high-purity metal is taken out of the molten salt electrolyte, and after steps such as washing with water and drying, a high-purity metal product is obtained.
[0003] When high-purity metal is deposited on the cathode, a large amount of molten salt electrolyte will adhere to it. During the lifting process of the cathode, the adhered molten salt electrolyte will drip down into the electrolytic cell. However, the constant temperature zone of the electrolytic cell is short. After the cathode is lifted to a height above the liquid level of the molten salt electrolyte, the temperature in its area will drop significantly, and the adhered molten salt will solidify on the surface of the high-purity metal and cannot continue to drip, resulting in a large amount of coagulated salt in the high-purity metal, increasing the number of subsequent cleaning times and increasing the oxygen content in the high-purity metal product. Summary of the Utility Model
[0004] In view of this, some embodiments disclose an electrolytic device with a salt draining function, including:
[0005] An electrolytic cell, the top of the electrolytic cell is set to be open;
[0006] A support cover, adaptively arranged on the top of the electrolytic cell; the internal cavity of the support cover is communicated with the internal cavity of the electrolytic cell;
[0007] A lifting assembly, adaptively arranged on the support cover and extending into the interior of the support cover; the lifting assembly located inside the support cover is used to set the cathode and drive the cathode to move vertically;
[0008] A heating assembly, adaptively arranged on the inner wall of the support cover; the heating assembly has a circular channel for the lifting assembly to pass through;
[0009] The lifting assembly is set to drive the cathode to move to the circular channel of the heating assembly; the heating assembly is used to heat the cathode to heat and melt the molten salt on the cathode and drip it into the electrolytic cell.
[0010] In the electrolytic device with a salt draining function disclosed in some embodiments, the heating assembly includes:
[0011] A power transformation box, installed and fixed on the side wall of the support cover for power supply;
[0012] The induction coil is vertically arranged in the inner cavity of the support cover, and its two ends are adaptively connected to the power conversion box; the induction coil forms a circular channel for inductively heating the cathode.
[0013] The control box is connected to the power conversion box and is used to control the power conversion box.
[0014] For the electrolysis device with the function of draining salt disclosed in some embodiments, the control box includes:
[0015] The control panel is used to adjust the heating parameters and display real-time data.
[0016] The temperature sensor is used to monitor the temperature of the heating area.
[0017] The current sensor and / or voltage sensor are used to monitor the working state of the circuit.
[0018] For the electrolysis device with the function of draining salt disclosed in some embodiments, the control box further includes an emergency stop button for manually stopping the heating.
[0019] For the electrolysis device with the function of draining salt disclosed in some embodiments, it further includes a cooling component which is adaptively arranged with the induction coil and is used to cool the induction coil.
[0020] For the electrolysis device with the function of draining salt disclosed in some embodiments, the lifting component includes:
[0021] The motor is adaptively arranged at the top of the support cover and is located directly above the induction coil.
[0022] The worm is adaptively connected to the motor.
[0023] The worm gear is adaptively connected to the worm.
[0024] The lead screw is vertically and adaptively inserted into the worm gear. The lead screw extends into the interior of the support cover, and the end of the lead screw is used to set the cathode.
[0025] For the electrolysis device with the function of draining salt disclosed in some embodiments, the lifting component further includes limit switches. Two limit switches are provided and are respectively adaptively arranged on the lead screw.
[0026] For the electrolysis device with the function of draining salt disclosed in some embodiments, a position sensor is adaptively arranged at the end of the lead screw, and the position sensor is electrically connected to the control box.
[0027] For the electrolysis device with the function of draining salt disclosed in some embodiments, the lead screw is threadedly connected to the worm gear, and an insulating layer is provided at the connection between the lead screw and the worm gear.
[0028] For the electrolysis device with the function of draining salt disclosed in some embodiments, a sealing sleeve is provided at the connection between the electrolysis cell and the support cover.
[0029] In the electrolysis device with a salt draining function disclosed in the embodiments of the present utility model, the cathode is driven by a lifting assembly to extend into or be pulled out of the electrolysis cell, and the cathode pulled out of the electrolysis cell is heated by a heating assembly, so that the molten salt adhered to the cathode melts and drips into the electrolysis cell. The electrolysis device with a salt draining function disclosed in the embodiments of the present utility model can remove the molten salt adhered to the cathode reduction deposition product, reduce the subsequent cleaning difficulty, and prevent the product from being contaminated and oxidized. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 FIG. 1 is a schematic structural diagram of an electrolysis device with a salt draining function in Embodiment 1;
[0031] Figure 2 FIG. 2 is a schematic working diagram of an electrolysis device with a salt draining function in Embodiment 2; Figure 1 ;
[0032] Figure 3 FIG. 2 is a schematic working diagram of an electrolysis device with a salt draining function in Embodiment 2; Figure 2 。
[0033] REFERENCE NUMERALS
[0034] 1 electrolysis cell 2 support cover
[0035] 3 lifting assembly 4 heating assembly
[0036] 31 motor 32 worm
[0037] 33 worm gear 34 lead screw
[0038] 41 power conversion box 42 induction coil
[0039] 43 control box 100 waste titanium
[0040] 200 pure titanium 300 molten salt electrolyte DETAILED DESCRIPTION OF THE EMBODIMENTS
[0041] The special term "embodiment" here, any embodiment described as "exemplary" does not have to be construed as superior to or better than other embodiments. For the performance index tests in the embodiments of this application, unless otherwise specified, the conventional test methods in the art are used. It should be understood that the terms described in this application are only for describing specific embodiments and are not used to limit the content disclosed in this application.
[0042] Unless otherwise specified, the technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; other test methods and technical means not specifically noted in this application refer to the experimental methods and technical means commonly used by those of ordinary skill in the art.
[0043] As used herein, the terms "substantially" and "about" are used to describe minor fluctuations. For example, they can refer to less than or equal to ±5%, such as less than or equal to ±2%, such as less than or equal to ±1%, such as less than or equal to ±0.5%, such as less than or equal to ±0.2%, such as less than or equal to ±0.1%, such as less than or equal to ±0.05%. Numerical data presented or represented herein in a range format are used only for convenience and brevity and should therefore be interpreted flexibly as including not only the values explicitly recited as the bounds of the range but also all individual values or sub-ranges subsumed within that range. For example, a numerical range of "1 to 5%" should be interpreted as including not only the explicitly recited values of 1% to 5% but also individual values and sub-ranges within the indicated range. Thus, individual values such as 2%, 3.5%, and 4% and sub-ranges such as 1% to 3%, 2% to 4%, and 3% to 5% etc. are included within this numerical range. This principle also applies to ranges that recite only a single numerical value. In addition, such interpretation applies regardless of the width of the range or the nature of the feature described.
[0044] As used herein, including in the claims, conjunctive terms such as "comprising," "including," "carrying," "having," "containing," "involving," "accommodating," etc. are to be understood as being open-ended, i.e., meaning "including but not limited to." Only the conjunctive terms "consisting of" and "composed of" are closed conjunctive terms.
[0045] For a better illustration of the content of the present application, numerous specific details are given in the following specific embodiments. Those skilled in the art should understand that the present application can be implemented without some of these specific details. In the embodiments, some methods, means, instruments, devices, etc. well-known to those skilled in the art are not described in detail so as to highlight the gist of the present application.
[0046] On the premise of no conflict, the technical features disclosed in the embodiments of the present application can be combined arbitrarily, and the obtained technical solutions belong to the content disclosed in the embodiments of the present application. It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. mentioned in the present application indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing technical features and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention, unless it conflicts with the context. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance, unless it conflicts with the context.
[0047] In some embodiments, the electrolysis device having a salt drainage function includes:
[0048] An electrolytic cell, the top of the electrolytic cell is set to be open; the electrolytic cell is also used as an anode; generally, the electrolytic cell can be made of metallic nickel, metallic iron or other inert materials;
[0049] A support cover, which is adaptively arranged on the top of the electrolytic cell; the inner cavity of the support cover is communicated with the inner cavity of the electrolytic cell; generally, a sealing sleeve is arranged at the connection between the electrolytic cell and the support cover, the size of the support cover is adapted to the size of the electrolytic cell, and the support cover is made of materials with high temperature resistance, heat insulation and not easy to deform;
[0050] A lifting assembly, which is adaptively arranged on the support cover and extends into the support cover; the lifting assembly located inside the support cover is used to arrange the cathode and drive the cathode to move vertically; the stroke of the lifting assembly satisfies that the cathode is inserted into the molten salt electrolyte of the electrolytic cell and satisfies that the cathode is lifted from the molten salt electrolyte of the electrolytic cell to the circular channel of the heating assembly;
[0051] A heating assembly, which is adaptively arranged on the inner wall of the support cover; the heating assembly has a circular channel for the lifting assembly to pass through;
[0052] The lifting assembly is set to drive the cathode to move to the circular channel of the heating assembly; the heating assembly is used to heat the cathode, heat and melt the molten salt on the cathode and drip it into the electrolytic cell to avoid the molten salt from polluting the product on the cathode.
[0053] In some embodiments, the heating assembly includes:
[0054] A power conversion box, which is installed and fixed on the side wall of the support cover for power supply; the power conversion box can convert alternating current into high-frequency alternating current, and the frequency range can be selected according to the size of the cathode and the melting point of the molten salt. High-frequency current will generate strong eddy currents on the metal surface, which is suitable for surface hardening; while low-frequency current can penetrate deeper and is suitable for overall heating or heating of large-sized components;
[0055] An induction coil, which is arranged vertically in the inner cavity of the support cover, and its two ends are adaptively connected to the power conversion box; the induction coil forms a circular channel for inductive heating of the cathode; generally, the induction coil is made of copper wire, and the shape of the induction coil is a spiral ring; when alternating current passes through the coil, an alternating magnetic field will be generated around it. When this alternating magnetic field acts on the cathode placed in the coil, eddy currents will be induced inside the cathode. These eddy currents interact with the original magnetic field, resulting in the conversion of energy loss into heat, which can increase the temperature of the cathode, so that the molten salt adhered to the cathode can melt and fall off;
[0056] A control box, which is connected to the power conversion box for controlling the power conversion box.
[0057] In some embodiments, the control box includes:
[0058] A control panel for adjusting heating parameters and displaying real-time data. Generally, functions such as adjusting the heating temperature, heating time, automatically controlling the start or stop of the power distribution box, and fault diagnosis can be realized on the control panel.
[0059] A temperature sensor for monitoring the temperature of the heating area. When the monitored temperature is too high, the control panel will automatically control the power cut-off according to the monitoring signal.
[0060] A current sensor and / or a voltage sensor for monitoring the working state of the circuit. When the monitored current and / or voltage exceeds the preset value, the control panel will automatically control the power cut-off according to the monitoring signal.
[0061] In some embodiments, the control box further includes an emergency stop button for manually stopping heating. In case of an emergency, the heating process can be manually stopped.
[0062] In some embodiments, the electrolysis device with a salt draining function further includes a cooling component. The cooling component is adaptively arranged with the induction coil and is used to cool the induction coil. Cooling water needs to be introduced into the induction coil to prevent the coil from overheating due to long-term operation. Generally, the cooling component consists of cooling devices such as a water pump and water pipes.
[0063] In some embodiments, the lifting component includes:
[0064] A motor, adaptively arranged on the top of the support cover and directly above the induction coil;
[0065] A worm, adaptively connected to the motor;
[0066] A worm gear, adaptively connected to the worm;
[0067] A lead screw, adaptively inserted vertically into the worm gear. The lead screw extends into the interior of the support cover, and the end of the lead screw is used to set the cathode. Generally, the lead screw is threadedly connected to the worm gear. When the motor is started, the motor drives the worm to rotate, and the worm drives the worm gear to rotate. During the rotation of the worm gear, since the position of the worm gear is fixed, the lead screw arranged in the worm gear can move up and down along its arranged direction. Generally, the lead screw also serves as the conductive rod of the cathode, and an insulating layer is arranged at the connection between the lead screw and the worm gear.
[0068] Before electrolysis, install the cathode at the end of the lead screw, start the motor to rotate. The motor drives the worm to rotate, the worm drives the worm wheel to rotate, and the lead screw drives the cathode to move downward along its set direction, inserting the cathode into the molten salt electrolyte in the electrolytic cell. During electrolysis, the electrolytic cell is electrically connected to the lead screw, and the lead screw conducts the current to the cathode installed at its end. After electrolysis, start the motor to rotate in the opposite direction. The motor drives the worm to reverse, the worm drives the worm wheel to reverse, and the lead screw drives the cathode to move upward along its set direction, pulling out the cathode inserted in the molten salt electrolyte from the molten salt electrolyte.
[0069] In some embodiments, the lifting assembly further includes limit switches. There are two limit switches, and the two limit switches are respectively arranged on the lead screw in a matching manner. The limit switches are used to prevent the lead screw from driving the cathode beyond the predetermined stroke range. Generally, the setting position of one of the limit switches is such that the position where the lead screw stops can make the cathode in the induction coil, and the setting position of the other limit switch is such that the position where the lead screw stops can make the cathode inserted into the molten salt electrolyte in the electrolytic cell.
[0070] In some embodiments, a position sensor is arranged at the end of the lead screw in a matching manner, and the position sensor is electrically connected to the control box. Generally, when the lead screw drives the cathode to move to the position in the induction coil, the position sensor will send a signal to the control box, enabling it to automatically control the power supply box to supply power to the induction coil, and the induction coil inductively heats the cathode.
[0071] The following further exemplarily illustrates the technical details in combination with embodiments.
[0072] Embodiment 1
[0073] Figure 1 It is a schematic structural diagram of the electrolysis device with a salt draining function disclosed in Embodiment 1.
[0074] As Figure 1 shown, the schematic structural diagram of the electrolysis device with a salt draining function includes an electrolytic cell 1 with an open top, a support cover 2 adaptively arranged on the electrolytic cell 1, a lifting assembly 3 adaptively arranged in the support cover 2, and a heating assembly 4 adaptively arranged in the support cover 2 and surrounding the outside of the lifting assembly 3.
[0075] Among them, the lifting assembly 3 includes a motor 31 adaptively arranged at the top of the support cover 2, a worm 32 arranged and connected to the right side of the motor 31, a worm wheel 33 arranged and connected to the right side of the worm 32, a lead screw 34 inserted into the worm wheel 33. The top end of the lead screw 34 is above the worm wheel 33, the bottom end of the lead screw 34 is at the opening of the electrolytic cell 1, and the lead screw 34 can move up and down along its set direction;
[0076] The heating assembly 4 includes a power conversion box 41 fixedly installed on the right inner wall of the support cover 2, an induction coil 42 disposed on the left side of the power conversion box 41, directly above the electrolytic cell 1, and surrounding the outside of the lead screw 32, and a control box 43 disposed on the right side of the power conversion box 41 and electrically connected to the power conversion box;
[0077] After the electrolysis reaction ends, the worm 32 is driven to rotate by the motor 31, driving the worm gear 33 to rotate, causing the lead screw 34 to move upward, thereby realizing driving the cathode into the induction coil 42. Then, the control box 43 controls the power conversion box 41 to supply power to the induction coil 42, and the induction coil 42 heats the cathode, causing the molten salt adhering to the cathode to melt and fall back into the electrolytic cell 1.
[0078] Embodiment 2
[0079] Figure 2 Schematic diagram of the working of the electrolysis device with salt draining function disclosed in Embodiment 2 Figure 1 ; Figure 3 Schematic diagram of the working of the electrolysis device with salt draining function disclosed in Embodiment 2 Figure 2 .
[0080] As Figure 2 and Figure 3 shown, the electrolytic cell 1 and the waste titanium 100 serve as the anode, and the pure titanium 200 serves as the cathode. The pure titanium 200 is fixedly installed at the bottom of the lead screw 34 and moved to be inserted into the molten salt electrolyte 300. The power supply is connected to the electrolytic cell 1 and the lead screw 34 to start electrolysis. During the electrolysis process, the titanium in the waste titanium enters the molten salt electrolyte 300 in the form of titanium ions and is then reduced to high-purity titanium on the pure titanium 200; after the electrolysis ends, the connection between the electrolytic cell 1 and the lead screw 34 is disconnected, and the motor 31 drives the worm 32 to rotate, driving the worm gear 33 to rotate, causing the lead screw 34 to move upward, thereby driving the pure titanium 200 into the induction coil 42. Then, the control box 43 controls the power conversion box 41 to supply power to the induction coil 42, and the induction coil 42 inductively heats the pure titanium 200, causing the molten salt 300 adhering to the pure titanium 200 to melt and fall back into the electrolytic cell 1.
[0081] The electrolysis device with salt draining function disclosed in the embodiment of the present utility model drives the cathode to extend into or be pulled out of the electrolytic cell through the lifting assembly, and heats the cathode pulled out of the electrolytic cell through the heating assembly, so that the molten salt adhering to the cathode melts and drips into the electrolytic cell. The electrolysis device with salt draining function disclosed in the embodiment of the present utility model can remove the molten salt adhering to the reduction deposition product on the cathode, reduce the subsequent cleaning difficulty, and prevent the product from being contaminated and oxidized.
[0082] The technical solutions disclosed in the present utility model and the technical details disclosed in the embodiments are only exemplary illustrations of the inventive concept of the present utility model, and do not constitute a limitation on the technical solutions of the present utility model. Any conventional changes, substitutions or combinations made to the technical details disclosed in the embodiments of the present utility model have the same inventive concept as the present utility model and fall within the protection scope of the claims of the present utility model.
Claims
1. An electrolysis device with a salt drainage function, characterized in that Comprising: An electrolytic cell, the top of the electrolytic cell is provided with an opening; A support cover, adaptively arranged on the top of the electrolytic cell; The internal cavity of the support cover is communicated with the internal cavity of the electrolytic cell; A lifting assembly, adaptively arranged on the support cover and extending into the support cover; The lifting assembly located inside the support cover is used to set the cathode and drive the cathode to move vertically; A heating assembly, adaptively arranged on the inner wall of the support cover; the heating assembly has a circular channel for the lifting assembly to pass through; The lifting assembly is arranged to drive the cathode to move to the circular channel of the heating assembly; the heating assembly is used to heat the cathode, and heat the molten salt on the cathode to melt and drip into the electrolytic cell.
2. The electrolysis device with a salt drainage function according to claim 1, characterized in that, The heating assembly includes: A power conversion box, installed and fixed on the side wall of the support cover for power supply; An induction coil, arranged vertically in the internal cavity of the support cover, and its two ends are adaptively connected to the power conversion box; the induction coil forms the circular channel for inductive heating of the cathode; A control box, connected to the power conversion box for controlling the power conversion box.
3. The electrolysis device with a salt drainage function according to claim 2, characterized in that, The control box includes: A control panel for adjusting heating parameters and displaying real-time data; A temperature sensor for monitoring the temperature of the heating area; A current sensor and / or a voltage sensor for monitoring the working state of the circuit.
4. The electrolysis device with a salt drainage function according to claim 3, characterized in that, The control box further includes an emergency stop button for manually stopping heating.
5. The electrolysis device with a salt draining function according to claim 2, characterized in that, It further includes a cooling assembly, which is adaptively arranged with the induction coil for cooling the induction coil.
6. The electrolysis device with a salt drainage function according to claim 2, characterized in that, The lifting assembly includes: A motor, adaptively arranged on the top of the support cover, directly above the induction coil; A worm, adaptively connected to the motor; A worm gear, adaptively connected to the worm; A lead screw, vertically inserted into the worm gear adaptively, the lead screw extends into the support cover, and the end of the lead screw is used to set the cathode.
7. The electrolysis device with a salt drainage function according to claim 6, characterized in that, The lifting assembly further includes limit switches, two limit switches are provided, and the two limit switches are respectively adaptively arranged on the lead screw.
8. The electrolysis device with a salt drainage function according to claim 6, characterized in that A position sensor is adaptively arranged at the end of the lead screw, and the position sensor is electrically connected to the control box.
9. The electrolysis device with a salt drainage function according to claim 6, characterized in that, The lead screw is threadedly connected to the worm gear, and an insulating layer is arranged at the connection between the lead screw and the worm gear.
10. The electrolysis device with a salt drainage function according to claim 1, characterized in that, A sealing sleeve is arranged at the connection between the electrolytic cell and the support cover.