Electrolytic cell conductive apparatus and electrolysis device

Abstract

An electrolytic cell conductive apparatus and an electrolysis device. The electrolytic cell conductive apparatus comprises: a first conductive component (2) detachably arranged on a conductive rod (1), and the first conductive component (2) being electrically connected to the conductive rod (1); a second conductive component (4) detachably arranged on a busbar (3), and the second conductive component (4) being electrically connected to the busbar (3); the first conductive component (2) conductively abuts against the second conductive component (4).

Description

Electrolytic cell conductive device and electrolytic equipment CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to Chinese patent application No. 202410383695.X filed on April 1, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure belongs to the technical field of electrolysis equipment, and in particular relates to an electrolytic cell conductive device and electrolysis equipment. Background Art

[0003] The electrolytic cell of the electrolytic equipment is equipped with a power supply device that connects to the cell's anode to provide power to the anode. A pre-baked aluminum anode conductive rod and a horizontal busbar are placed between the power supply device and the anode. A pressing device connects the anode conductive rod and the horizontal busbar to provide power to the anode.

[0004] During the periodic replacement of anodes, unstable contact resistance can easily cause arcing on the interface between the anode conductive rod and the horizontal busbar. This can cause burns and electrical corrosion on the interface between the anode conductive rod and the horizontal busbar, leading to surface degradation. This, in turn, increases contact resistance, contact voltage drop, and operating energy consumption. This, in turn, shortens the service life of the anode conductive rod and the horizontal busbar, increasing overall production and maintenance costs. Summary of the Invention

[0005] The present disclosure provides an electrolytic cell conductive device and electrolytic equipment, which aims to at least to some extent solve the technical problems of increased contact resistance, increased operating power consumption, shortened service life, and increased use and maintenance costs caused by arc erosion on the surface of the anode conductive rod and the horizontal busbar.

[0006] In one aspect of the present disclosure, an electrolytic cell conductive device is provided, comprising: a conductive rod, a busbar, a first conductive member, and a second conductive member. The first conductive member is detachably mounted on the conductive rod and electrically connected to the conductive rod. The second conductive member is detachably mounted on the busbar and electrically connected to the busbar. The first conductive member is in conductive contact with the second conductive member.

[0007] In another aspect of the embodiments of the present disclosure, an electrolysis device is also provided, which includes the above-mentioned electrolytic cell conductive device. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0009] FIG1 is a schematic structural diagram showing an assembled state of a conductive rod and a first conductive member in a conductive device for an electrolytic cell according to some embodiments of the present disclosure;

[0010] FIG2 shows a top view of the conductive rod in FIG1 ;

[0011] FIG3 shows a left side view of the conductive rod in FIG1 ;

[0012] FIG4 shows a left side view of the first conductive member in FIG1 ;

[0013] FIG5 is a schematic structural diagram showing an assembled state of a busbar and a second conductive member in a conductive device for an electrolytic cell according to some embodiments of the present disclosure;

[0014] FIG6 shows a top view of the busbar in FIG5 ;

[0015] FIG7 shows a front view of the busbar in FIG5; and

[0016] FIG. 8 shows a front view of the second conductive member in FIG. 5 .

[0017] The correspondence between reference numerals and component names is as follows:

[0018] 1. Conductive rod; 11. First mounting slot; 2. First conductive member; 21. First conductive block; 22. Second conductive block; 3. Busbar; 31. Second mounting slot; 4. Second conductive member; 41. Third conductive block; 42. Fourth conductive block. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0020] In addition, the present disclosure may repeat reference numbers and / or reference letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0021] The technical solution of the present disclosure will be described below with reference to the accompanying drawings and specific embodiments.

[0022] In electrolysis equipment, the anode is equipped with a conductive device consisting of a conductive rod and a busbar. The anode conductive rod is connected to the horizontal busbar by means of an extrusion device to connect the anode to the power supply. During the periodic replacement of the anode, due to unstable contact resistance, arcs are easily generated on the contact surface of the conductive rod and the busbar, causing high-temperature ablation of the conductive rod and the busbar, deteriorating the surface quality, and increasing the contact resistance of the conductive rod and the busbar, thereby increasing the operating power consumption. On the other hand, the deterioration of the surface quality reduces the conductive performance of the conductive device. In severe cases of electrocorrosion, the working surfaces of the anode conductive rod and the horizontal busbar need to be repaired or even scrapped prematurely. This is not conducive to stable power supply production, and to a certain extent also leads to a shortened service life and increased maintenance and usage costs.

[0023] To this end, the embodiments of the present disclosure provide an electrolytic cell conductive device and electrolytic equipment, which aim to improve the stability of contact resistance and power consumption of conductive rods and busbars during use to a certain extent, and reduce the adverse effects of arc erosion on the service life and operation and maintenance costs of conductive rods and busbars.

[0024] Referring to Figures 1 and 5 , in some embodiments, the electrolytic cell conductive device includes: a conductive rod 1, a first conductive member 2, a busbar 3, and a second conductive member 4. The first conductive member 2, serving as a conductive contact medium, is detachably mounted on the conductive rod 1 and maintains electrical connection therewith; the second conductive member 4, serving as a conductive contact medium, is detachably mounted on the busbar 3 and maintains electrical connection therewith; the first conductive member 2 and the second conductive member 4 abut against each other and maintain electrical connection, thereby achieving electrical connection between the conductive rod 1 and the busbar 3.

[0025] It is worth noting that by having the first conductive member 2 and the second conductive member 4 bear the arc erosion, direct damage to the main body of the conductive rod 1 and the busbar 3 can be avoided; the detachable installation method allows the first conductive member 2 and the second conductive member 4 to be disassembled and replaced on-site by maintenance personnel after the arc erosion reaches a certain extent, so that the contact resistance and power consumption of the conductive rod 1 and the busbar 3 can be stably maintained below a certain level. The stability of the power supply quality of the conductive device is ensured and the power consumption is limited. On the other hand, compared with the maintenance method of directly grinding and repairing the surface of the conductive rod 1 and the busbar 3, the mode of having two conductive members bear the arc erosion and replace them in time can simplify the maintenance operation to a certain extent, reduce maintenance costs, improve maintenance efficiency, and relatively extend the service life of the conductive rod and the busbar.

[0026] In some embodiments, in order to improve the ablation resistance of the first conductive member 2 and the second conductive member 4, a conductive material layer may be provided on the contact surface of the first conductive member 2 and the second conductive member 4, respectively. The melting point of the conductive material layer is lower than the melting point of the first conductive member 2 and the second conductive member 4. Therefore, when an arc is generated between the first conductive member 2 and the second conductive member 4, the conductive material layer can be ablated and melted first, thereby absorbing the arc energy and reducing the energy directly acting on the first conductive member 2 and the second conductive member 4. The ablation temperature and degree of the first conductive member 2 and the second conductive member 4 can be reduced to a certain extent. The surface quality of the contact surface of the first conductive member 2 and the second conductive member 4 is maintained. The adverse effect of ablation on the contact resistance is relatively weakened. The contact voltage drop and operating energy consumption are kept relatively stable. The service life of the first conductive member and the second conductive member can also be extended to a certain extent.

[0027] In some embodiments, the conductive material layer may further extend to an area outside the contact surface of the first conductive member 2 and the second conductive member 4 , thereby further limiting the ablation range and ablation degree.

[0028] In some embodiments, the conductive material layer can be set as a tin-plated layer to obtain good melting energy absorption performance and take into account stable coating retention performance. In some embodiments, the conductive material layer can also be made of other materials, which are not specifically limited here.

[0029] In some embodiments, the first conductive member 2 and the second conductive member 4 may be made of the same material as the conductive rod 1 and the busbar 3, respectively, thereby limiting bimetallic corrosion between the first conductive member 2 and the second conductive member 4 and the conductive rod 1 and the busbar 3.

[0030] In some embodiments, in order to improve the contact resistance between the first conductive member 2 and the second conductive member 4 , the material of the first conductive member 2 and the second conductive member 4 can be set to a dissimilar material having a resistivity lower than the resistivity of the conductive rod 1 and the busbar 3 .

[0031] In some embodiments, to improve ablation resistance, the first conductive member 2 and the second conductive member 4 may be made of a dissimilar material having a higher melting point than that of the conductive rod 1 and the busbar 3. This can enhance the high-temperature resistance of the region where the first conductive member 2 and the second conductive member 4 are located, thereby improving the overall ablation resistance of the conductive rod 1 and the busbar 3.

[0032] Referring to Figures 1 and 4 , in some embodiments, considering the potential for bimetallic electrochemical corrosion in the electrolytic cell environment after dissimilar metal connections, the first conductive member 2 may include a first conductive block 21 and a second conductive block 22 that are integrally composited. Specifically, the first conductive block 21 and the second conductive block 22 are composited using a dissimilar metal composite process to form a composite conductive member with a dissimilar metal transition structure. This can reduce electrochemical corrosion between the first conductive member 2 and the conductive rod 1 to a certain extent, ensuring the quality of the electrical connection and reducing contact resistance and voltage drop.

[0033] In some embodiments, the second conductive block 22 is made of the same material as the conductive rod 1. The first conductive block 21 and the second conductive block 22 are made of different materials. Generally speaking, by selecting the material, the melting point of the first conductive block 21 can be set higher than the melting point of the second conductive block 22, and the resistivity of the first conductive block 21 can be set lower than the resistivity of the second conductive block 22.

[0034] Generally speaking, the second conductive block 22 and the first conductive block 21 can be integrated by using an explosion welding process.

[0035] In some embodiments, the second conductive block 22 may be directly welded to the conductive rod 1 to ensure connection stability and avoid joint gaps, thereby reducing the risk of virtual connections and oxidation of the joint surface.

[0036] 1, 2, and 3, in some embodiments, to further enhance the installation stability and electrical connection stability of the first conductive member 2, a first mounting groove 11 may be provided on the conductive rod 1, and the second conductive block 22 may be embedded in the first mounting groove 11. Furthermore, the second conductive block 22 may be welded to the first mounting groove 11.

[0037] On the other hand, to avoid bimetallic electrochemical corrosion, the first mounting slot 11 and the first conductive block 21 may be matched in size and set to leave an isolation gap between the first mounting slot 11 and the first conductive block 21 to avoid direct contact between the first mounting slot 11 and the first conductive block 21.

[0038] In some embodiments, the first mounting groove 11 can be configured as a dovetail groove. The second conductive block 22 is configured as a trapezoidal block that matches the dovetail groove, and its dimensions are slightly smaller than the inner dimensions of the first mounting groove 11, so that the second conductive block 22 can be well embedded in the first mounting groove 11. This ensures a good engagement of the second conductive block 22 and limits the range of movement of the second conductive block 22.

[0039] In some embodiments, the first conductive block 21 and the second conductive block 22 can be integrally disposed within the first mounting slot 11. The first conductive block 21 and the second conductive block 22 are integrally protected within the first mounting slot 11 to prevent hooking and interference with other structures on site.

[0040] In some embodiments, the first conductive block 21 may also be configured as a trapezoidal block to match the shape of the dovetail groove; however, a gap between the first conductive block 21 and the first mounting groove 11 needs to be maintained.

[0041] In some embodiments, multiple first conductive members 2 may be spaced apart on the conductive rod 1. If the degree of ablation of a first conductive member 2 in service fails to meet design requirements, the conductive rod 1 can be moved to replace the first conductive member 2 mated with the second conductive member 4. This simplifies maintenance and replacement operations and extends service life.

[0042] In some embodiments, the number of the first conductive members 2 can be two, symmetrically arranged on both sides of the conductive rod 1. Accordingly, the first mounting grooves 11 can also be symmetrically provided on the conductive rod 1 to accommodate one first conductive member 2 respectively.

[0043] In some embodiments, the conductive rod 1 can be made of aluminum. The second conductive block 22 can also be made of aluminum. The first conductive block 21 can be made of copper. This can achieve a relatively higher melting point and lower resistivity.

[0044] Referring to Figures 5 and 8 , in some embodiments, considering the potential for bimetallic electrochemical corrosion in the electrolytic cell environment after dissimilar metal connections, the second conductive member 4 may include a third conductive block 41 and a fourth conductive block 42 that are integrally composited. Specifically, the third conductive block 41 and the fourth conductive block 42 are composited using a dissimilar metal composite process to form a composite conductive member with a dissimilar metal transition structure. This can reduce electrochemical corrosion between the second conductive member 4 and the busbar 3 to a certain extent, thereby ensuring the quality of the electrical connection and reducing contact resistance and voltage drop.

[0045] In some embodiments, the fourth conductive block 42 is made of the same material as the busbar 3. The third conductive block 41 and the fourth conductive block 42 are made of different materials. Generally, by selecting the material, the melting point of the third conductive block 41 can be set higher than the melting point of the fourth conductive block 42, and the resistivity of the third conductive block 41 can be set lower than the resistivity of the fourth conductive block 42.

[0046] In some embodiments, the fourth conductive block 42 and the third conductive block 41 may be combined into one body by using an explosion welding process.

[0047] In some embodiments, the fourth conductive block 42 may be directly welded to the busbar 3 to ensure connection stability and avoid joint gaps, thereby reducing the risk of virtual connections and oxidation of the joint surface.

[0048] 5 , 6 , and 7 , in some embodiments, to further enhance the installation stability and electrical connection stability of the second conductive member 4 , a second mounting groove 31 may be provided on the busbar 3 . The fourth conductive block 42 may be embedded in the second mounting groove 31 . Furthermore, the fourth conductive block 42 may be welded to the second mounting groove 31 .

[0049] On the other hand, in order to avoid bimetallic electrochemical corrosion, the specifications of the second mounting groove 31 and the third conductive block 41 can be matched and an isolation gap can be left between the second mounting groove 31 and the third conductive block 41 to avoid direct contact between the second mounting groove 31 and the third conductive block 41.

[0050] In some embodiments, the second mounting slot 31 can be configured as a dovetail slot. The fourth conductive block 42 is configured as a trapezoidal block that matches the dovetail slot and is slightly smaller than the second mounting slot 31. This allows the fourth conductive block 42 to be securely embedded within the second mounting slot 31. The secure engagement of the fourth conductive block 42 can limit its range of movement.

[0051] In some embodiments, the third conductive block 41 and the fourth conductive block 42 may be integrally disposed within the second mounting slot 31. The third conductive block 41 and the fourth conductive block 42 are integrally protected within the second mounting slot 31 to avoid hooking and interfering with other structures on site.

[0052] In some embodiments, the third conductive block 41 may also be configured as a trapezoidal block to match the shape of the dovetail groove; however, a gap between the third conductive block 41 and the second mounting groove 31 needs to be maintained.

[0053] In some embodiments, the busbar 3 may be made of aluminum. The fourth conductive block 42 may also be made of aluminum. The third conductive block 41 may be made of copper. This can achieve a relatively higher melting point and lower resistivity.

[0054] It is worth noting that, considering that the first conductive member 2 and the second conductive member 4 need to be in contact and electrically connected, and that the busbar 3 and the conductive rod 1 need to be lifted during the electrolysis production process, the dimensions of the first conductive member 2 and the second conductive member 4 should be set in consideration of the movement process, and a stable electrical connection between the first conductive member 2 and the second conductive member 4 should be maintained.

[0055] In some embodiments, an electrolysis device based on the above conductive device is also provided.

[0056] The embodiments of the present disclosure have at least the following beneficial effects:

[0057] The electrolytic cell conductive device and electrolysis equipment provided by the embodiments of the present disclosure realize electrical connection between the conductive rod and the busbar by respectively arranging detachable first and second conductive parts on the conductive rod and the busbar, and abutting the first and second conductive parts. Therefore, the arc erosion area can be limited to the first and second conductive parts, so that the electrical connection surface between the conductive rod and the busbar can be kept in a relatively ideal state by replacing the first and second conductive parts, thereby ensuring the stability of the contact resistance and voltage drop in the production process as a whole, and limiting the operating time of the high power consumption operation state. On the other hand, the maintenance operation of the conductive plate and the busbar can be simplified by replacing the conductive parts. Compared with the method of repairing the conductive rod and the busbar by overall grinding, this method can greatly improve the maintenance efficiency and reduce the operation and maintenance costs, thereby reducing the damage to the busbar of the conductive rod as a whole and extending the service life.

[0058] In the present disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0059] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0060] It should be noted that all directional indications in the embodiments of the present disclosure are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0061] In this disclosure, unless otherwise expressly specified or limited, the terms "connect," "fix," etc. should be understood in a broad sense. For example, "fix" can mean a fixed connection, a detachable connection, or an integral connection; 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 internal communication between two elements or an interaction between two elements, unless otherwise expressly specified. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0062] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this disclosure, "plurality" means two or more, unless otherwise specifically defined.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0064] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this disclosure.

[0065] Although the embodiments of the present disclosure have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. An electrolytic cell conductive device comprising: Conductive rod, busbar, first conductive member and second conductive member; The first conductive member is detachably disposed on the conductive rod, and the first conductive member is electrically connected to the conductive rod; The second conductive member is detachably disposed on the busbar, and the second conductive member is electrically connected to the busbar; Wherein, the first conductive member is in conductive contact with the second conductive member.

2. The electrolytic cell conductive device according to claim 1, wherein: A conductive material layer is respectively provided on the contact surface of the first conductive member and the second conductive member, and the melting point of the conductive material layer is lower than the melting point of the first conductive member and the busbar, so that the conductive material layer melts and absorbs energy, thereby reducing the ablation energy acting on the first conductive member and the second conductive member.

3. The electrolytic cell conductive device according to claim 2, wherein: The conductive material layer includes a tin-plated layer.

4. The electrolytic cell conductive device according to claim 1, wherein: The first conductive member includes a first conductive block and a second conductive block that are integrated into one body; The first conductive block and the second conductive block are electrically connected, the first conductive block abuts against the second conductive member, the second conductive block is electrically connected to the conductive rod, and the conductive material layer is provided on the contact surface between the first conductive block and the second conductive member; The second conductive block is made of the same material as the conductive rod, the melting point of the first conductive block is higher than that of the second conductive block, and the melting point of the conductive material layer is lower than that of the first conductive block.

5. The electrolytic cell conductive device according to claim 4, wherein: The resistivity of the first conductive block is lower than the resistivity of the second conductive block.

6. The electrolytic cell conductive device according to claim 4, wherein: The first conductive block and the second conductive block are combined into one body through an explosion welding process, and the second conductive block is welded to the conductive rod.

7. The electrolytic cell conductive device according to any one of claims 4 to 6, wherein: The conductive rod is provided with a first mounting groove, the second conductive block is embedded in the first mounting groove, and an isolation gap is left between the first conductive block and the first mounting groove.

8. The electrolytic cell conductive device according to claim 7, wherein: The first mounting groove is a dovetail groove, and the shape of the second conductive block matches the groove shape of the dovetail groove.

9. The electrolytic cell conductive device according to claim 1, wherein: The second conductive member includes a third conductive block and a fourth conductive block; The third conductive block is electrically connected to the fourth conductive block, the third conductive block abuts against the first conductive member, the fourth conductive block is electrically connected to the busbar, and the conductive material layer is provided on the contact surface between the third conductive block and the first conductive member; The third conductive block and the fourth conductive block are combined into one body by welding, and the fourth conductive block is welded in the second mounting groove provided on the busbar; Among them, the fourth conductive block is made of the same material as the busbar, the melting point of the third conductive block is higher than the melting point of the fourth conductive block, the melting point of the conductive material layer is lower than the melting point of the third conductive block, and the resistivity of the third conductive block is lower than the resistivity of the fourth conductive block.

10. An electrolysis device comprising the electrolytic cell conductive device according to any one of claims 1 to 9.

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