Electrolytic bath device

Abstract

The invention belongs to the technical field of electrolytic aluminum, and particularly relates to an electrolytic bath device. The electrolytic bath device comprises: a support frame; the connecting assembly is arranged on the supporting frame in a sliding mode; the auxiliary frame is connected with the connecting assembly; the anode assembly comprises a bottom frame, at least one calendering frame and a plurality of conductors, one frame in the at least one calendering frame is embedded in the bottom frame, the bottom frame and the at least one calendering frame are arranged in the auxiliary frame, the plurality of conductors are arranged in the bottom frame and the calendering frame, and anode groups are arranged in the bottom frame and the calendering frame; the electricity leading assembly is electrically connected with the auxiliary frame; the cathode assembly is arranged on the support frame and is positioned below the anode assembly; and the clamping assembly comprises a base and a roller mechanism, the base is connected with the connecting assembly, and the roller mechanism is arranged on the base and penetrates through the auxiliary frame to abut against the anode assembly. The electrolytic bath device can reduce energy consumption.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electrolytic aluminum, and particularly relates to an electrolytic cell device. BACKGROUND

[0002] The prebaked aluminum electrolysis technology is a core production method of modern aluminum industry, which realizes efficient electrolysis of aluminum oxide through the synergistic effect of prebaked anode carbon blocks and electrolytic cells. After gradually replacing the self-baking anode technology in the middle of the 20th century, the technology has become the mainstream process of global aluminum electrolysis due to its production stability, current efficiency and environmental protection advantages.

[0003] In the related art, the prebaked aluminum electrolysis has high energy consumption and cannot be operated at low energy consumption. SUMMARY

[0004] To solve the above technical problems, the application provides an electrolytic cell device, which aims to at least solve the technical problem of high energy consumption of prebaked aluminum electrolysis to some extent.

[0005] The technical scheme of the application is as follows: An electrolytic cell device comprises a support frame, a connecting assembly slidably arranged in the support frame, a secondary frame connected with the connecting assembly, an anode assembly comprising a bottom frame, at least one pressing frame embedded in the bottom frame, and a plurality of conductors arranged in the bottom frame and the pressing frame, the bottom frame and the pressing frame being arranged in the secondary frame, the bottom frame and the pressing frame each being provided with an anode group, an electricity leading assembly electrically connected with the secondary frame, a cathode assembly arranged in the support frame and located below the anode assembly, and a clamping assembly comprising a base connected with the connecting assembly and a roller mechanism arranged in the base and penetrating the secondary frame and the anode assembly.

[0006] In some embodiments, the pressing frame has a clamping piece, and when the number of the pressing frames is multiple, the clamping piece of the lowermost pressing frame among the multiple pressing frames is clamped in the bottom frame, and the clamping piece of the upper pressing frame among the two adjacent pressing frames is clamped in the lower pressing frame.

[0007] In some embodiments, the secondary frame is provided with a through hole, and the roller mechanism comprises a driving piece arranged in the base and a roller connected with the driving piece and partially penetrating the through hole and the anode assembly.

[0008] In some embodiments, the connecting assembly comprises a cross beam slidably arranged in the support frame and connected with the secondary frame and the base, a lifter arranged in the support frame, and a connecting frame connected with the secondary frame and the lifter.

[0009] In some embodiments, the electricity leading assembly comprises: a top busbar; a peripheral busbar; a first guide rod, which is in contact with the sub-frame and is electrically connected with the top busbar and the sub-frame; and a second guide rod, which is in contact with the sub-frame and is spaced apart from the first guide rod, and is electrically connected with the peripheral busbar and the sub-frame.

[0010] In some embodiments, the cathode assembly comprises: a cathode pool; an inner lining unit arranged in the cathode pool; and a cathode arranged in the inner lining unit.

[0011] In some embodiments, the inner lining unit comprises: a thermal insulation layer arranged in the cathode pool; a heat preservation layer arranged in the thermal insulation layer; and a barrier layer arranged in the heat preservation layer.

[0012] In some embodiments, the cathode surface has a corrosion-resistant layer, and the cathode is provided with at least one groove.

[0013] In some embodiments, the electrolytic cell device further comprises: a displacement sensor arranged outside the sub-frame, for detecting the position of the bottom of the anode assembly.

[0014] In some embodiments, the electrolytic cell device further comprises: a first gas collecting hood reversibly arranged on the top of the sub-frame; and a second gas collecting hood arranged above the cathode assembly; wherein the sub-frame is arranged in the second gas collecting hood above the cathode assembly.

[0015] The present application has at least the following advantages: Since the connecting assembly is slidably arranged in the support frame, the sub-frame is connected with the connecting assembly, the anode assembly comprises a bottom frame, at least one calendering frame and a plurality of conductors, one of the at least one calendering frame is embedded in the bottom frame, the bottom frame and the at least one calendering frame are arranged in the sub-frame, the plurality of conductors are arranged in the bottom frame and the calendering frame, the bottom frame and the calendering frame are provided with anode groups, the electricity leading assembly is electrically connected with the sub-frame, the clamping assembly comprises a base and a roller mechanism, the base is connected with the connecting assembly, the roller mechanism is arranged in the base and penetrates the sub-frame and the anode assembly, therefore, before electrolysis, tamping paste is added to the bottom of the bottom frame, so that the tamping paste is bonded to the bottom of the bottom frame, one of the at least one calendering frame is embedded in the bottom frame, the bottom frame and the calendering frame are put into the sub-frame, the roller mechanism penetrates the sub-frame and the anode assembly, the roller mechanism clamps the bottom frame, anode groups are added to the bottom frame and the calendering frame, the electricity leading assembly is powered to the sub-frame, the sub-frame guides electricity to the bottom frame and the calendering frame, and the plurality of conductors are used to roast the anode groups.

[0016] Since the cathode assembly is located on the support frame and below the anode assembly, after the anode assembly is baked, electrolyte and molten aluminum are added to the cathode assembly for electrolysis. As the electrolysis reaction proceeds, the anode assembly is continuously consumed, and the roller mechanism moves to lower the anode assembly, ensuring that the distance between the anode assembly and the cathode assembly meets the requirements.

[0017] Understandably, when the anode groups inside the bottom frame are consumed, the rolling frame and the anode groups inside the rolling frame can be consumed. As the rolling frame and the anode groups inside the rolling frame are consumed, a rolling frame and anode groups can be added to the sub-frame. In other words, continuous electrolysis can be achieved simply by continuously adding the rolling frame and the anode groups inside the rolling frame, without the need for electrode switching or inserting / removing the pins.

[0018] Because there is no need for electrode switching or inserting / removing pins, the height of the molten aluminum in the cathode assembly can be reduced to a minimum (0.1mm~0.5mm). This reduces the distance between the anode and cathode assemblies, lowering the anode voltage drop and achieving lower DC power consumption. This results in voltage and energy balance in aluminum electrolysis, reducing the electrical energy consumption of the electrolytic aluminum production process and thus lowering the energy consumption of the electrolytic cell, achieving low-energy operation. It is understandable that using the same kW... With the help of h electrical energy, this application can produce more aluminum. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 These are schematic diagrams of the electrolytic cell apparatus in some embodiments; Figure 2 for Figure 1 A schematic diagram of the anode assembly of the electrolytic cell unit.

[0021] In the attached image: Support frame 10; Connecting component 20, crossbeam 21, lifting device 22, connecting frame 23; Subframe 30; Anode assembly 40, base frame 41, rolling frame 42, clamp 421, conductor 43; Power supply assembly 50, first guide rod 51; Cathode assembly 60, cathode molten pool 61, inner lining unit 62, thermal insulation layer 621, heat insulation layer 622, seepage prevention layer 623, cathode 63; Clamping assembly 70, base 71, roller mechanism 72, drive component 721, roller 722; Episode 1, Air Mask 80; Episode 2, Air Mask 90. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0026] Specific technical solutions will now be described in detail with reference to the accompanying drawings, which are not necessarily drawn to scale. Similar or identical reference numerals may be used to designate the same or similar parts in different figures. The use of similar or identical reference numerals in different figures does not mean that all figures including similar or identical reference numerals constitute a single or the same embodiment. The accompanying drawings illustrate the various embodiments discussed in this application in a generalized, illustrative, and not restrictive manner.

[0027] Combination Figure 1 andFigure 2 The electrolytic cell apparatus of this application embodiment includes: a support frame 10, a connecting assembly 20, a sub-frame 30, an anode assembly 40, an electrical induction assembly 50, a cathode assembly 60, and a clamping assembly 70. The connecting assembly 20 is slidably disposed on the support frame 10. The sub-frame 30 is connected to the connecting assembly 20. The anode assembly 40 includes a bottom frame 41, at least one rolling frame 42, and a plurality of conductors 43. One of the at least one rolling frame 42 is embedded in the bottom frame 41. Both the bottom frame 41 and the at least one rolling frame 42 are disposed within the sub-frame 30. The plurality of conductors 43 are disposed within the bottom frame 41 and the rolling frame 42. Anode groups are provided within both the bottom frame 41 and the rolling frame 42. The electrical induction assembly 50 is electrically connected to the sub-frame 30. The cathode assembly 60 is disposed on the support frame 10 and located below the anode assembly 40. The clamping assembly 70 includes a base 71 and a roller mechanism 72. The base 71 is connected to the connecting assembly 20, and the roller mechanism 72 is located on the base 71 and passes through the sub-frame 30 to abut against the anode assembly 40.

[0028] Since the connecting component 20 is slidably mounted on the support frame 10, the sub-frame 30 is connected to the connecting component 20. The anode assembly 40 includes a bottom frame 41, at least one rolling frame 42, and multiple conductors 43. One of the at least one rolling frame 42 is embedded in the bottom frame 41. The bottom frame 41 and the at least one rolling frame 42 are both located within the sub-frame 30. The multiple conductors 43 are located within the bottom frame 41 and the rolling frame 42. Anode groups are provided within both the bottom frame 41 and the rolling frame 42. The current-leading component 50 is electrically connected to the sub-frame 30. The clamping assembly 70 includes a base 71 and a roller mechanism 72. The base 71 is connected to the connecting component 20, and the roller mechanism 72 is located on the base 71. 1. The sub-frame 30 is inserted into the anode assembly 40. Therefore, before electrolysis, tamping paste is added to the bottom of the bottom frame 41 so that the tamping paste adheres to the bottom of the bottom frame 41. At least one of the rolling frames 42 is embedded in the bottom frame 41. The bottom frame 41 and the rolling frame 42 are placed into the sub-frame 30. The roller mechanism 72 is inserted into the sub-frame 30 and anode assembly 40. The roller mechanism 72 clamps the bottom frame 41. The anode assembly is added into the bottom frame 41 and the rolling frame 42. The power supply component 50 supplies power to the sub-frame 30. The sub-frame 30 conducts electricity to the bottom frame 41 and the rolling frame 42. The anode assembly is baked through multiple conductors 43.

[0029] Since the cathode assembly 60 is located on the support frame 10 and below the anode assembly 40, after the anode assembly is baked, electrolyte and molten aluminum are added to the cathode assembly 60 for electrolysis. As the electrolysis reaction proceeds, the anode assembly 40 will be continuously consumed, and the roller mechanism 72 will operate to lower the anode assembly 40, ensuring that the distance between the anode assembly 40 and the cathode assembly 60 meets the requirements.

[0030] It is understandable that when the anode group inside the bottom frame 41 is consumed, the anode group inside the rolling frame 42 can be consumed. As the anode group inside the rolling frame 42 is consumed, the rolling frame 42 and the anode group inside the rolling frame 42 can be added to the sub-frame 30. In other words, continuous electrolysis can be achieved by continuously adding the anode group inside the rolling frame 42 without changing the electrode or inserting / removing the pin.

[0031] Since there is no need for electrode switching or inserting / removing pins, the height of the molten aluminum in the cathode assembly 60 can be reduced to a minimum (0.1mm~0.5mm). This reduces the distance between the anode assembly 40 and the cathode assembly 60, thereby lowering the anode voltage drop. This achieves lower DC power consumption, aluminum electrolysis voltage balance, and energy balance, thus reducing the electrical energy consumption of aluminum electrolysis and lowering the energy consumption of the electrolytic cell, achieving low-energy operation. It is understandable that using the same kW... With the help of h electrical energy, this application can produce more aluminum.

[0032] In some embodiments, the bottom frame 41 and the rolling frame 42 are made of aluminum or a material that does not introduce production impurities, and the height of the bottom frame 41 is approximately 2-2.5 times the height of the rolling frame 42.

[0033] In some embodiments, the anode assembly may be spherical dry paste with a diameter of about 50 mm or small dry paste particles of less than 10 mm, or it may be a calcined anode cone.

[0034] In some embodiments, multiple conductors 43 are uniformly arranged in the bottom frame 41 and the rolling frame 42 to ensure uniform current distribution, uniform calcination of the anode group, and stable current supplied to the anode group during the electrolysis process after the anode group has been calcined.

[0035] In some embodiments, the sub-frame 30 is a rigid, thick material with high compressive strength, which can prevent the bottom frame 41 and the rolled frame 42 from deforming and also has a heat insulation function.

[0036] In some embodiments, the electrolyte is neutral or weakly acidic, with a molecular weight ratio ranging from 2.8 to 3.0, and the alumina in the electrolyte is granular alumina. The height of the molten aluminum is 0.1-0.5 mm, which reduces the energy consumption of the electrolytic cell while ensuring the safety and stability of the electrolytic cell apparatus.

[0037] In some embodiments, the sub-frame 30, the bottom frame 41, and the rolling frame 42 each have a through-slot extending through themselves.

[0038] In some embodiments, the rolling frame 42 has a locking member 421. When there are multiple rolling frames 42, the locking member of the lowermost rolling frame 42 is locked in the bottom frame 41, and the locking member of the upper rolling frame 42 of two adjacent rolling frames 42 is locked in the lower rolling frame 42, so as to facilitate the installation of the rolling frames 42.

[0039] For example, along the height direction of the calendering frame 42, a clip 421 extends from the bottom of the calendering frame 42 with a length of about 150mm to 200mm. The clip 421 is about 8mm to 15mm shorter than the outer periphery of the calendering frame 42 towards the center of the calendering frame 42.

[0040] Specifically, when there are two rolling frames 42, the two rolling frames 42 include a first rolling frame and a second rolling frame. The clip of the first rolling frame is attached to the top of the bottom frame 41, and the clip of the second rolling frame is attached to the top of the first rolling frame to achieve embedded stacking.

[0041] Combination Figure 1 In some embodiments, in order for the roller mechanism 82 to clamp the anode assembly 40 and to drive the anode assembly 40 downward after it is consumed, the sub-frame 30 is provided with a through hole. The roller mechanism 72 includes a drive member 721 and a roller 722. The drive member 721 is disposed on the base 71. The roller 722 is connected to the drive member 721 and partially passes through the through hole, abutting against the anode assembly 40. For example, the drive member 721 can be a motor.

[0042] After the anode assembly 40 enters the sub-frame 30, the roller 722 partially passes through the through hole and abuts against the anode assembly 40 to hold the anode assembly 40 and prevent it from falling off. During the electrolysis process, when the anode assembly 40 is consumed, the drive component 721 is activated, which drives the roller 722 to rotate, so that the anode assembly 40 descends, ensuring that the distance between the anode assembly 40 and the cathode assembly 60 meets the requirements.

[0043] Combination Figure 1 In some embodiments, to enable the sub-frame 30 to move, the connecting assembly 20 includes a crossbeam 21, a lifter 22, and a connecting frame 23. The crossbeam 21 is slidably mounted on the support frame 10 and connected to the sub-frame 30 and the base 71. The lifter 22 is mounted on the support frame 10. The connecting frame 23 is connected to the sub-frame 30 and to the lifter 22. An exemplary lifter 23 may be a screw conveyor.

[0044] When the sub-frame 30 is to be in position, the lifting device 22 is activated. The lifting device 22 drives the sub-frame 30 to move via the connecting frame 23, thereby positioning the sub-frame 30. The crossbeam 30 provides guidance, ensuring the stability of the sub-frame 30's movement. In case the clamping assembly 70 is damaged, for emergency use, the lifting device 22 drives the sub-frame 30 via the connecting frame 23, which in turn drives the anode assembly 40 to position. The crossbeam 30 provides guidance, ensuring the stability of the sub-frame 30's movement.

[0045] Combination Figure 1 In some embodiments, to achieve power conduction, the power conduction assembly 50 includes: a busbar on the slot, a busbar around the slot, a first guide rod 51, and a second guide rod. The first guide rod 51 is attached to the sub-frame 30 and electrically connected to the busbar on the slot and the sub-frame 30. The second guide rod is attached to the sub-frame 30 and spaced apart from the first guide rod, and is electrically connected to the busbar around the slot and the sub-frame 30. For example, the first guide rod and the second guide rod are located on opposite sides of the sub-frame 30.

[0046] When current is to be introduced, the busbar on the slot is used to introduce the current, and the busbar on the slot guides the current to the sub-frame 30. The sub-frame 30 guides the current through the bottom frame 41 and the rolling frame 42 to multiple conductors 43. The second guide rod guides the current to the busbar around the slot, and the current is led out through the busbar around the slot.

[0047] Combination Figure 1 In some embodiments, for electrolysis, the cathode assembly 60 includes a cathode molten pool 61, an inner liner unit 62, and a cathode 63. The inner liner unit 62 is disposed within the cathode molten pool 61, and the cathode molten pool 61 accommodates the inner liner unit 62. The cathode 63 is disposed within the inner liner unit 62, and the inner liner unit 62 supports the cathode 63 and can accommodate the electrolyte and molten aluminum.

[0048] In some embodiments, the cathode is a dry-coated cathode, which is a graphitized cathode.

[0049] Combination Figure 1 In some embodiments, to ensure normal electrolysis, the inner lining unit 62 includes: a thermal insulation layer 621, a heat insulation layer 622, and a seepage-proof layer 623. The thermal insulation layer 621 is disposed within the cathode molten pool 61 for thermal insulation. The heat insulation layer 622 is disposed within the thermal insulation layer 621 for heat insulation. The seepage-proof layer 623 is disposed within the heat insulation layer 622 for seepage prevention.

[0050] In some embodiments, the cathode 63 has a corrosion-resistant layer on its surface, namely, a TiB2 (titanium diboride) layer is electroplated on the cathode surface, which can prevent corrosion by the cathode 63, ensure the safety of the cathode 63, and improve the service life of the cathode 63. In some embodiments, the cathode 63 has at least one trench for storing molten aluminum, thereby reducing the height of the molten aluminum and decreasing the distance between the anode assembly 40 and the cathode assembly 60, so as to keep the height of the molten aluminum always between 0.1 mm and 0.5 mm. For example, the depth of the trench can be 8 cm to 10 cm.

[0051] In some embodiments, there may be two trenches, with the two trenches located on opposite sides of the cathode.

[0052] In some embodiments, to control the downward movement of the anode assembly 40, the electrolytic cell apparatus further includes a displacement sensor. The displacement sensor is located outside the sub-frame 30 and is used to detect the position of the bottom of the anode assembly 40.

[0053] The displacement sensor detects the position of the bottom of the anode assembly 40 and sends the position of the bottom of the anode assembly 40 to the controller. Based on the position of the bottom of the anode assembly 40, the controller can calculate the distance between the anode assembly 40 and the cathode assembly 60. Based on the distance between the anode assembly 40 and the cathode assembly 60, the controller sends an action signal to the drive component 721 of the clamping assembly 70 and the roller mechanism 72. The roller 722 of the roller mechanism 72 moves to make the anode assembly 40 descend, ensuring that the distance between the anode assembly 40 and the cathode assembly 60 meets the requirements.

[0054] Combination Figure 1 In some embodiments, to form a sealed space, the electrolytic cell apparatus further includes a first gas collecting hood 80. The first gas collecting hood 80 is rotatably disposed on the top of the sub-frame 30.

[0055] During electrolysis, a first gas collecting hood 80 is positioned on top of the sub-frame 30 to seal the top of the sub-frame 30, forming a sealed space that prevents asphalt fumes from escaping, increases the flue gas temperature and carbon dioxide concentration, and facilitates the reduction of carbon dioxide capture and storage costs. Simultaneously, it improves waste heat utilization efficiency. For example, this waste heat can be used for power generation or heating domestic water.

[0056] When a rolling frame 42 and an anode group are to be added into the sub-frame 30, the first gas collecting hood 80 flips at the top of the sub-frame 30 to open the top of the sub-frame 30, so that the rolling frame 42 and the anode group can enter the sub-frame 30. This avoids interference with the continuous addition of the rolling frame 42 and the anode group inside the rolling frame 42, enabling continuous electrolysis without the need for electrode switching or inserting / removing rods.

[0057] Combination Figure 1 In some embodiments, to form a sealed space, the electrolytic cell apparatus further includes a second gas collecting hood 90. The second gas collecting hood 90 is disposed above the cathode assembly 60. A sub-frame 30 passes through the second gas collecting hood above the cathode assembly 60.

[0058] During electrolysis, the second gas collecting hood 90 is positioned above the cathode assembly 60 to enclose the top of the sub-frame 30, forming a sealed space that prevents asphalt fumes from escaping, increases the flue gas temperature and carbon dioxide concentration, and facilitates the reduction of carbon dioxide capture and storage costs. Simultaneously, it improves waste heat utilization efficiency. For example, this waste heat can be used for power generation or heating domestic water. The sub-frame 30 passes through the second gas collecting hood and is located above the cathode assembly 60 to ensure normal electrolysis.

[0059] During the electrolysis process, the first gas collecting hood 80 and the second gas collecting hood 90 can significantly increase the flue gas temperature and carbon dioxide concentration, which is beneficial for reducing the cost of carbon dioxide capture and storage. At the same time, it can significantly improve the efficiency of waste heat utilization.

[0060] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0061] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0063] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0064] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. An electrolytic cell apparatus, characterized by, The electrolytic cell device comprises a support frame, a connecting assembly slidably arranged in the support frame, a sub-frame connected with the connecting assembly, an anode assembly comprising a bottom frame, at least one pressing frame and a plurality of conductors, one of the at least one pressing frame being embedded in the bottom frame, the bottom frame and the at least one pressing frame being arranged in the sub-frame, the plurality of conductors being arranged in the bottom frame and the pressing frame, the bottom frame and the pressing frame each being provided with an anode group, an electricity lead assembly electrically connected with the sub-frame, a cathode assembly arranged in the support frame and located below the anode assembly, and a clamping assembly comprising a base and a roller mechanism, the base being connected with the connecting assembly, the roller mechanism being arranged in the base and penetrating the sub-frame and the anode assembly. The pressing frame is provided with a clamping member. When the number of the pressing frames is more than one, the clamping member of the lowermost pressing frame among the plurality of pressing frames is clamped in the bottom frame, and the clamping member of the upper pressing frame among the two adjacent pressing frames is clamped in the lower pressing frame. The sub-frame is provided with a through hole, and the roller mechanism comprises a driving member arranged in the base and a roller connected with the driving member and partially penetrating the through hole and the anode assembly. The connecting assembly comprises a cross beam slidably arranged in the support frame and connected with the sub-frame and the base, a lifter arranged in the support frame, and a connecting frame connected with the sub-frame and the lifter. The electricity lead assembly comprises an upper busbar in a groove, a peripheral busbar in the groove, a first guide rod in close contact with the sub-frame and electrically connected with the upper busbar in the groove and the sub-frame, and a second guide rod in close contact with the sub-frame and spaced apart from the first guide rod, the second guide rod being electrically connected with the peripheral busbar in the groove and the sub-frame. The cathode assembly comprises a cathode molten pool, an inner lining unit arranged in the cathode molten pool, and a cathode arranged in the inner lining unit. The inner lining unit comprises a thermal insulation layer arranged in the cathode molten pool, a heat preservation layer arranged in the thermal insulation layer, and a barrier layer arranged in the heat preservation layer.

2. The electrolytic cell apparatus of claim 1, wherein, The cathode surface is provided with a corrosion-resistant layer, and the cathode is provided with at least one groove. The electrolytic cell device further comprises a displacement sensor arranged outside the sub-frame and used for detecting the position of the bottom of the anode assembly.

3. The electrolytic cell apparatus of claim 1, wherein, The electrolytic cell device further comprises a first gas collecting cover reversibly arranged on the top of the sub-frame, and a second gas collecting cover arranged above the cathode assembly. The sub-frame penetrates the second gas collecting cover and is located above the cathode assembly. ​ 4. The electrolytic cell arrangement of any one of claims 1-3, wherein, ​ ​ ​ ​ 5. The electrolytic cell arrangement of any one of claims 1-3, wherein, ​ ​ ​ ​ ​ 6. The electrolytic cell apparatus of any one of claims 1-3, wherein, ​ ​ ​ ​ 7. The electrolytic cell apparatus of claim 6, wherein, ​ ​ ​ ​ 8. The electrolytic cell apparatus of claim 6, wherein, ​ 9. The electrolytic cell apparatus of any one of claims 1-3, wherein, ​ ​ 10. The electrolytic cell apparatus of any one of claims 1-3, wherein, ​ ​ ​ ​

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