Double-anode group structure and aluminum electrolysis cell

Abstract

The utility model relates to the field of anodes of electrolytic cells, in particular to a double-anode group structure and an aluminum electrolytic cell. An existing double-anode structure is improved, particularly, the structural form of the flow guide structure is optimized, the resistance-reducing flow guide structure comprises a tail end flow guide part, at least part of the tail end flow guide part is attached to the horizontal section of the steel claw, the resistance-reducing flow guide structure further comprises a flow guide part, and the flow guide part is connected with the tail end flow guide part. The drainage part is connected with the anode aluminum guide rod and the tail end flow guide part so as to achieve conductive connection between the anode aluminum guide rod and the tail end flow guide part. In this way, the current can be guided to the horizontal section of the steel claw from the anode aluminum guide rod through the resistance-reducing flow guide structure, compared with an existing flow guide structure, the resistance in a current flowing path is further reduced, and therefore the voltage drop is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of anodes in electrolytic cells, and more particularly to a dual-anode group structure and an aluminum electrolytic cell. Background Technology

[0002] With the escalating energy crisis and resource scarcity, the electrolytic aluminum industry, as a high-energy-consuming sector, is facing severe challenges in energy conservation and emission reduction. Improving energy efficiency in the electrolytic aluminum process is directly related to the industry's carbon reduction potential. The anode, as a crucial component in the electrolysis process, accounts for approximately 7.5% of the total voltage drop, and its performance and structural design significantly impact electrolysis efficiency and energy consumption. Traditional anodes consist of an aluminum guide rod, steel claws, and an anode carbon block, with the connection between the aluminum rod and steel claws typically formed through explosive welding. Due to limitations in connection methods and materials, this structure suffers from insufficient conductivity and a large voltage drop, which not only reduces electrolysis efficiency but also increases energy consumption, contradicting the current industrial development trend of energy conservation and emission reduction. Therefore, optimizing the anode assembly structure to improve conductivity and reduce voltage drop is of great significance for achieving energy conservation and carbon reduction goals.

[0003] Chinese utility model patent application CN221720955U discloses an anode conductive device employing a double-anode composite steel claw. The double-anode composite steel claw includes an X-shaped steel beam and steel claws vertically connected to the four ends of the steel beam. Each steel claw is U-shaped, including horizontal and vertical sections. The ends of the steel beam are integrally connected to the horizontal sections, and an anode aluminum guide rod is vertically connected to the center of the steel beam. To reduce the resistance and voltage drop when current flows through the steel beam, a steel-aluminum connection structure is provided above the steel beam. This structure includes steel-aluminum connectors, each comprising multiple tightly stacked steel-aluminum composite sheets. Each steel-aluminum composite sheet consists of tightly bonded steel and aluminum sheets, which are bonded together using existing technology. The steel-aluminum connector has an aluminum welding surface for welding to the side of the anode rod and a steel welding surface for welding to the upper surface of the crossbeam. The steel welding surface is formed by the side of the steel sheet of the tightly stacked steel-aluminum composite sheet that is used for welding to the crossbeam, and the aluminum welding surface is formed by the side of the aluminum sheet of the tightly stacked steel-aluminum composite sheet that is used for welding to the anode rod. By using a steel-aluminum connection structure with lower resistance than the steel beam, the current on the anode rod is transferred to a position near the end of the steel beam, which can reduce the anode resistance. However, experiments have shown that the reduction in resistance and voltage drop is limited. Utility Model Content

[0004] The purpose of this invention is to provide a dual-anode structure to address the limited reduction in voltage drop in existing dual-anode structures. This invention also provides an aluminum electrolytic cell to solve the same problem.

[0005] The dual anode assembly structure of this utility model includes an aluminum anode guide rod, a steel beam, and a steel claw. It also includes a resistance-reducing and flow-guiding structure, which includes an end flow guide component connected to the horizontal section of the steel claw. The resistance-reducing and flow-guiding structure also includes a flow-draining component, which is connected to both the aluminum anode guide rod and the end flow guide component to achieve a conductive connection between them.

[0006] Furthermore, the drainage component and the end guide component are integrally formed.

[0007] Furthermore, the drainage component and the end guide component are separate structures, with the drainage component being an independent component or a combined component.

[0008] Furthermore, the end guide is attached to the upper surface, vertical side, or lower surface of the horizontal section of the steel claw.

[0009] Furthermore, the drainage component includes a front-end guide and a transition guide. The front-end guide is electrically connected to the anode aluminum guide rod, and the transition guide is connected to the front-end guide and the end guide respectively to achieve the conductive connection between the front-end guide and the end guide.

[0010] Furthermore, the transition guide is located on the upper side of the steel beam, the front guide extends vertically, and one side is attached to the vertical side of the anode aluminum guide rod, while the lower end is connected to the top surface of the transition guide.

[0011] Furthermore, the end of the transition guide that is furthest from the anode aluminum guide rod is connected to the end of the end guide that is closer to the anode aluminum guide rod.

[0012] Alternatively, the end guide is attached to the upper surface of the horizontal section of the steel claw. The transition guide is arched and includes a central straight section near the anode aluminum guide rod, two inclined sections extending from both ends of the central straight section along the steel beam, and a connecting end at the end of the two inclined sections extending to the upper side of the horizontal section of the steel claw. The end guide is a segmented structure in the length direction of the horizontal section of the steel claw. The connecting end is located between the adjacent ends of the two segmented structures and is connected to the two segments.

[0013] Alternatively, the end guide is attached to the upper surface of the horizontal section of the steel claw, the front guide is located on the side of the anode aluminum guide rod parallel to the horizontal section of the steel claw, the transition guide is a straight line parallel to the horizontal section of the steel claw, the transition guide is set close to the anode aluminum guide rod and extends to the upper side of the steel beam at both ends, the end guide extends obliquely along the steel beam on the steel beam, and one end is attached to the vertical side of the transition guide opposite to the anode aluminum guide rod, and the other end extends to the horizontal section of the steel claw.

[0014] Alternatively, the end guide is attached to the upper surface of the horizontal section of the steel claw, the front guide is located on the side of the anode aluminum guide rod parallel to the horizontal section of the steel claw, the transition guide is a straight line parallel to the horizontal section of the steel claw, the transition guide is set close to the anode aluminum guide rod, and both ends extend to the position of the end of the horizontal section of the steel claw away from the anode aluminum guide rod, the end guide is rectangular and one vertical side is attached to the vertical side of the transition guide that is opposite to the anode aluminum guide rod, and the lower side overlaps the horizontal section of the steel claw.

[0015] Alternatively, the end guide is attached to the upper surface of the horizontal section of the steel claw, the front guide is located on the side of the anode aluminum guide rod perpendicular to the horizontal section of the steel claw, the transition guide is a straight line perpendicular to the horizontal section of the steel claw, the transition guide is set close to the anode aluminum guide rod and extends to the horizontal section of the steel claw at both ends, and the end guide extends along the upper surface of the horizontal section of the steel claw as a whole, and the end is attached to and connected to the vertical side of the transition guide.

[0016] Alternatively, the end guide is attached to the upper surface of the horizontal section of the steel claw, the front guide is located on the side of the anode aluminum guide rod perpendicular to the horizontal section of the steel claw, the end guide extends along the upper surface of the horizontal section of the steel claw, the transition guide is a wedge-shaped block, and the narrow end is connected to the front guide, while the vertical end face of the wide end is connected to the vertical side face of the end guide.

[0017] Alternatively, the end guide is attached to the vertical side of the horizontal section of the steel claw, the front guide is on the side of the anode aluminum guide rod perpendicular to the horizontal section of the steel claw and extends downward to the lower side of the steel beam, the transition guide is straight and located on the lower side of the horizontal section of the steel claw, and the two ends of the transition guide extend to the opposite vertical sides of the two horizontal sections of the steel claw and connect with the end guide.

[0018] Alternatively, the end guide is attached to the vertical side of the horizontal section of the steel claw, the front guide is on the side of the anode aluminum guide rod that is parallel to the horizontal section of the steel claw and extends downward, the transition guide is below the front guide and in the interval between the two horizontal sections of the steel claw on the same straight line, and the opposite sides of the transition guide are connected to the adjacent ends of the end guides on the two horizontal sections of the steel claw on the same straight line.

[0019] Furthermore, the flow guiding component included in the drag-reducing flow guiding structure is a steel flow guiding component, an aluminum flow guiding component, a steel-aluminum composite flow guiding component, a copper flow guiding component, or a copper-aluminum composite flow guiding component.

[0020] Furthermore, the drag-reducing and flow-guiding structure is a flow-guiding block, a flow-guiding plate, or a flow-guiding strip.

[0021] This invention improves upon existing dual-anode structures, particularly optimizing the current-guiding structure. The resistance-reducing current-guiding structure includes an end guide member connected to the horizontal section of the steel claw. It also includes a current-draining component connected to both the anode aluminum guide rod and the end guide member, achieving a conductive connection between them. This structure guides current from the anode aluminum guide rod to the horizontal section of the steel claw, further reducing resistance in the current flow path compared to existing structures, thus further reducing voltage drop.

[0022] The aluminum electrolytic cell of this utility model includes a dual anode group structure, which includes an anode aluminum guide rod, a steel beam, and a steel claw. It also includes a resistance-reducing and flow-guiding structure, which includes an end flow guide component connected to the horizontal section of the steel claw. The resistance-reducing and flow-guiding structure also includes a flow-guiding component, which is connected to the anode aluminum guide rod and the end flow guide component to achieve a conductive connection between the anode aluminum guide rod and the end flow guide component.

[0023] Furthermore, the drainage component and the end guide component are integrally formed.

[0024] Furthermore, the drainage component and the end guide component are separate structures, with the drainage component being an independent component or a combined component.

[0025] Furthermore, the end guide is attached to the upper surface, vertical side, or lower surface of the horizontal section of the steel claw.

[0026] Furthermore, the drainage component includes a front-end guide and a transition guide. The front-end guide is electrically connected to the anode aluminum guide rod, and the transition guide is connected to the front-end guide and the end guide respectively to achieve the conductive connection between the front-end guide and the end guide.

[0027] Furthermore, the transition guide is located on the upper side of the steel beam, the front guide extends vertically, and one side is attached to the vertical side of the anode aluminum guide rod, while the lower end is connected to the top surface of the transition guide.

[0028] Furthermore, the end of the transition guide that is furthest from the anode aluminum guide rod is connected to the end of the end guide that is closer to the anode aluminum guide rod.

[0029] Alternatively, the end guide is attached to the upper surface of the horizontal section of the steel claw. The transition guide is arched and includes a central straight section near the anode aluminum guide rod, two inclined sections extending from both ends of the central straight section along the steel beam, and a connecting end at the end of the two inclined sections extending to the upper side of the horizontal section of the steel claw. The end guide is a segmented structure in the length direction of the horizontal section of the steel claw. The connecting end is located between the adjacent ends of the two segmented structures and is connected to the two segments.

[0030] Alternatively, the end guide is attached to the upper surface of the horizontal section of the steel claw, the front guide is located on the side of the anode aluminum guide rod parallel to the horizontal section of the steel claw, the transition guide is a straight line parallel to the horizontal section of the steel claw, the transition guide is set close to the anode aluminum guide rod and extends to the upper side of the steel beam at both ends, the end guide extends obliquely along the steel beam on the steel beam, and one end is attached to the vertical side of the transition guide opposite to the anode aluminum guide rod, and the other end extends to the horizontal section of the steel claw.

[0031] Alternatively, the end guide is attached to the upper surface of the horizontal section of the steel claw, the front guide is located on the side of the anode aluminum guide rod parallel to the horizontal section of the steel claw, the transition guide is a straight line parallel to the horizontal section of the steel claw, the transition guide is set close to the anode aluminum guide rod, and both ends extend to the position of the end of the horizontal section of the steel claw away from the anode aluminum guide rod, the end guide is rectangular and one vertical side is attached to the vertical side of the transition guide that is opposite to the anode aluminum guide rod, and the lower side overlaps the horizontal section of the steel claw.

[0032] Alternatively, the end guide is attached to the upper surface of the horizontal section of the steel claw, the front guide is located on the side of the anode aluminum guide rod perpendicular to the horizontal section of the steel claw, the transition guide is a straight line perpendicular to the horizontal section of the steel claw, the transition guide is set close to the anode aluminum guide rod and extends to the horizontal section of the steel claw at both ends, and the end guide extends along the upper surface of the horizontal section of the steel claw as a whole, and the end is attached to and connected to the vertical side of the transition guide.

[0033] Alternatively, the end guide is attached to the upper surface of the horizontal section of the steel claw, the front guide is located on the side of the anode aluminum guide rod perpendicular to the horizontal section of the steel claw, the end guide extends along the upper surface of the horizontal section of the steel claw, the transition guide is a wedge-shaped block, and the narrow end is connected to the front guide, while the vertical end face of the wide end is connected to the vertical side face of the end guide.

[0034] Alternatively, the end guide is attached to the vertical side of the horizontal section of the steel claw, the front guide is on the side of the anode aluminum guide rod perpendicular to the horizontal section of the steel claw and extends downward to the lower side of the steel beam, the transition guide is straight and located on the lower side of the horizontal section of the steel claw, and the two ends of the transition guide extend to the opposite vertical sides of the two horizontal sections of the steel claw and connect with the end guide.

[0035] Alternatively, the end guide is attached to the vertical side of the horizontal section of the steel claw, the front guide is on the side of the anode aluminum guide rod that is parallel to the horizontal section of the steel claw and extends downward, the transition guide is below the front guide and in the interval between the two horizontal sections of the steel claw on the same straight line, and the opposite sides of the transition guide are connected to the adjacent ends of the end guides on the two horizontal sections of the steel claw on the same straight line.

[0036] Furthermore, the flow guiding component included in the drag-reducing flow guiding structure is a steel flow guiding component, an aluminum flow guiding component, a steel-aluminum composite flow guiding component, a copper flow guiding component, or a copper-aluminum composite flow guiding component.

[0037] Furthermore, the drag-reducing and flow-guiding structure is a flow-guiding block, a flow-guiding plate, or a flow-guiding strip.

[0038] This invention improves upon existing aluminum electrolytic cells, particularly the dual-anode structure. By optimizing the flow guiding structure, the resistance-reducing flow guiding structure includes an end flow guide connected to the horizontal section of the steel claw. It also includes a current-guiding component connected to both the anode aluminum guide rod and the end flow guide, achieving a conductive connection between them. This structure guides current from the anode aluminum guide rod to the horizontal section of the steel claw, further reducing resistance in the current flow path compared to existing structures, thus further reducing voltage drop. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the first embodiment of the dual anode group structure of this utility model;

[0040] Figure 2 This is a schematic diagram of the second embodiment of the dual anode group structure of this utility model;

[0041] Figure 3 This is a schematic diagram of the third embodiment of the dual anode group structure of this utility model;

[0042] Figure 4 This is a schematic diagram of the fourth embodiment of the dual anode group structure of this utility model;

[0043] Figure 5 This is a schematic diagram of the fifth embodiment of the dual anode group structure of this utility model;

[0044] Figure 6 This is a schematic diagram of the sixth embodiment of the dual anode group structure of this utility model;

[0045] Figure 7 This is a schematic diagram of the seventh embodiment of the dual anode group structure of this utility model;

[0046] Figure 8 This is a schematic diagram of the eighth embodiment of the dual anode group structure of this utility model;

[0047] Figure 9 This is a structural schematic diagram of the ninth embodiment of the dual anode group structure of this utility model;

[0048] Figure 10 This is a schematic diagram of the tenth embodiment of the dual anode group structure of this utility model.

[0049] In the diagram: 1. Anode aluminum guide rod; 2. Steel beam; 31. Horizontal section; 40. Front guide; 41. Transition guide; 42. End guide; 410. Middle straight section; 411. Inclined sections on both sides; 412. Connecting end; 414. Upward extension section. Detailed Implementation

[0050] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0051] This invention optimizes the conductive connection structure of the existing dual anode group structure, which is independent of the steel beam, further reducing the resistance of the current path between the anode aluminum guide rod and the steel claw, and further reducing the voltage drop of the dual anode group structure, thereby achieving the goal of reducing energy consumption.

[0052] Specifically, based on the above concept, this utility model provides various different embodiments for illustration. It should be noted that the structure of the anode aluminum guide rod 1, steel beam 2, and steel claw in the dual anode group structure is not an improvement of this utility model. Therefore, in the following embodiments of the dual anode group structure, the structure of the anode aluminum guide rod 1, steel beam 2, and steel claw can be the same as the prior art, and will not be described in detail here.

[0053] In a basic embodiment, such as Figure 1-10 As shown, the dual-anode assembly structure includes an aluminum anode guide rod 1, a steel beam 2, and a steel claw. It also includes a resistance-reducing current-guiding structure, which provides an alternative conductive path to the aluminum anode guide rod 1—steel beam 2—steel claw, achieving a conductive connection between the aluminum anode guide rod 1 and the steel claw, and has lower resistance. The resistance-reducing current-guiding structure includes an end guide component 42, which is connected to the horizontal section 31 of the steel claw. The structure also includes a current-draining component, which connects the aluminum anode guide rod 1 and the end guide component 42 to achieve a conductive connection between them.

[0054] The main function of the flow-guiding component and the end guide 42 is to facilitate flow. In different embodiments, the flow-guiding component and the end guide 42 can be an integral structure, or the flow-guiding component and the end guide 42 can be a separate connection structure. When the flow-guiding component and the end guide 42 are separate connection structures, the flow-guiding part itself can be an independent component, i.e., an integral structure, or the flow-guiding component can also be a combination component of multiple parts connected to each other.

[0055] Since the lower side of the horizontal section 31 of the steel claw is connected to a vertical section, and the side of the horizontal section 31 of the steel claw facing the anode aluminum guide rod 1 is connected to the steel beam 2, and the upper side of the horizontal section 31 of the steel claw and the vertical side facing away from the anode aluminum guide rod 1 are completely exposed, in order to facilitate the connection between the end guide 42 and the horizontal section 31 of the steel claw, and at the same time ensure that there is a large flow area between the two, in some embodiments, the end guide 42 is attached to the upper surface of the horizontal section 31 of the steel claw, or in other embodiments, the end guide 42 is attached to the vertical side of the horizontal section 31 of the steel claw facing away from the anode aluminum guide rod 1, or in other embodiments, the end guide 42 is attached to the lower side of the horizontal section 31 of the steel claw. Regardless of whether the end guide 42 is attached to the upper surface of the horizontal section 31 of the steel claw, the vertical side facing away from the anode aluminum guide rod 1, or the lower side of the horizontal section 31 of the steel claw, in some embodiments, the length of the end guide 42 attached to the horizontal section 31 of the steel claw is made as close as possible to the length of the horizontal section 31 of the steel claw, so as to maximize the flow area between the two.

[0056] Based on the above-mentioned basic embodiments, such as Figure 1-10 In the different embodiments shown, the drainage component includes a front-end guide 40 and a transition guide 41. The front-end guide 40 is electrically connected to the anode aluminum guide rod 1, and the transition guide 41 is connected to the front-end guide 40 and the end guide 42 respectively to achieve the conductive connection between the front-end guide 40 and the end guide 42.

[0057] Furthermore, based on this, in situations such as Figure 1-7 In the different embodiments shown, the transition guide 41 is located on the upper side of the steel beam 2, the front guide 40 extends vertically, and one side is attached to the vertical side of the anode aluminum guide rod 1, and the lower end is connected to the top surface of the transition guide 41.

[0058] Specifically, such as Figure 1In the illustrated embodiment, there are two front-end guide members 40, located on the side of the anode aluminum guide rod 1 parallel to the horizontal section 31 of the steel claw. The transition guide member 41 is located on the upper side of the steel beam 2 and extends approximately along the steel beam 2, that is, it extends obliquely from the root of the anode aluminum guide rod 1 towards the end of the horizontal section 31 of the steel claw closer to the anode aluminum guide rod 1, and extends to the upper surface of the horizontal section 31 of the steel claw. The end guide member 42 is elongated and has the same width as the horizontal section 31 of the steel claw. The end of the transition guide member 41 away from the anode aluminum guide rod 1 is connected to the end of the end guide member 42 closer to the anode aluminum guide rod 1. In this embodiment, the front-end guide member 40 is constructed by stacking multiple layers of guide plates in the extending direction of the horizontal section 31 of the steel claw. Of course, in other embodiments, the front-end guide member 40 can be constructed as a single guide block. In this embodiment, the transition guide members 41 corresponding to the two steel claws share one front-end guide member 40. Of course, in other embodiments, each transition guide 41 may correspond one-to-one with the front guide 40. In this case, two front guides 40 are respectively provided on the side of the anode aluminum guide rod 1 parallel to the horizontal section 31 of the steel claw. In this embodiment, the end guide 42 is composed of multiple layers of guide plates stacked in the width direction of the horizontal section 31 of the steel claw. Of course, in other embodiments, the end guide 42 may be composed of an integral elongated guide block.

[0059] like Figure 4In the illustrated embodiment, the transition guide 41 is arched, comprising a central straight section 410 located near the anode aluminum guide rod 1, two inclined sections 411 extending obliquely from both ends of the central straight section 410 along the steel beam 2, and a connecting end 412 extending to the upper side of the horizontal section 31 of the steel claw at the ends of the two inclined sections 411. The connecting end 412 is located in the middle of the horizontal section 31 of the steel claw. The end guide 42 is a segmented structure along the length of the horizontal section 31 of the steel claw. The connecting end 412 is located between the adjacent ends of the two segmented structures and is attached to the corresponding end faces of the two segments. In this embodiment, the transition guide 41 is an integral structure. Of course, in other embodiments, the transition guide 41 can be a split connection structure, such as the central straight section 410 and the two inclined sections 411 being separate structures that are welded together. In this embodiment, the front guide 40 is composed of multiple layers of guide plates stacked in the extension direction of the horizontal section 31 of the steel claw. Of course, in other embodiments, the front-end guide member 40 can be constructed as an integral guide block. In this embodiment, the transition guide members 41 corresponding to the two steel claws share one front-end guide member 40. Of course, in other embodiments, each transition guide member 41 can also correspond one-to-one with the front-end guide member 40, in which case two front-end guide members 40 are respectively provided on the side of the anode aluminum guide rod 1 parallel to the horizontal section 31 of the steel claw. In this embodiment, the end guide member 42 is constructed as a multi-layer guide plate stacked in the width direction of the horizontal section 31 of the steel claw. Of course, in other embodiments, the end guide member 42 can be constructed as an integral elongated guide block.

[0060] like Figure 2In the illustrated embodiment, the front guide member 40 is located on the side of the anode aluminum guide rod 1 parallel to the horizontal section 31 of the steel claw. The transition guide member 41 is a straight line parallel to the horizontal section 31 of the steel claw, located near the root of the anode aluminum guide rod 1, and extending to the upper side of the steel beam 2 at both ends. The end guide member 42 extends obliquely along the steel beam 2, with one end attached to the vertical side of the transition guide member 41 facing away from the anode aluminum guide rod 1, and the other end extending to the horizontal section 31 of the steel claw. In this embodiment, the end guide member 42 is approximately a parallelogram-shaped block structure, and its dimension in the length direction of the transition guide member 41 is close to the length of the horizontal section 31 of the steel claw. Therefore, the portion attached to the horizontal section 31 of the steel claw extends along the horizontal section 31 of the steel claw. In this embodiment, the front guide member 40 is constructed by stacking multiple layers of guide plates in the extension direction of the horizontal section 31 of the steel claw. Of course, in other embodiments, the front-end guide member 40 can be constructed as an integral guide block. In this embodiment, the transition guide members 41 corresponding to the two steel claws share one front-end guide member 40. Of course, in other embodiments, each transition guide member 41 can also correspond one-to-one with the front-end guide member 40, in which case two front-end guide members 40 are respectively provided on the side of the anode aluminum guide rod 1 parallel to the horizontal section 31 of the steel claw. In this embodiment, the end guide member 42 is constructed as multiple guide plates stacked in the length direction of the transition guide member 41. Of course, in other embodiments, the end guide member 42 can be constructed as an integral guide block, or as multiple guide strips stacked in the vertical direction.

[0061] like Figure 5 In the illustrated embodiment, as shown Figure 2 Similar to the illustrated embodiment, the front guide 40 is located on the side of the anode aluminum guide rod 1 parallel to the horizontal section 31 of the steel claw. The transition guide 41 is a straight line parallel to the horizontal section 31 of the steel claw, positioned close to the anode aluminum guide rod 1, with both ends extending to the end of the horizontal section 31 of the steel claw furthest from the anode aluminum guide rod 1, i.e., the end of the transition guide 41 is nearly flush with the end of the horizontal section 31 of the steel claw furthest from the anode aluminum guide rod 1. At this time, the end guide 42 is rectangular, with one vertical side attached to the vertical side of the transition guide 41 facing away from the anode aluminum guide rod 1, and its lower side overlapping the horizontal section 31 of the steel claw. In this embodiment, the transition guide 41 corresponding to the two steel claws can share a single front guide 40. In this embodiment, the front guide 40 is an integral guide block, the transition guide 41 is an elongated guide block, and the end guide 42 is composed of multiple guide plates stacked along the length of the transition guide 41. Of course, in such... Figure 6 In the embodiment shown, the end guide 42 can also be an integral rectangular guide block.

[0062] like Figure 3 In the illustrated embodiment, the front guide member 40 is located on the side of the anode aluminum guide rod 1 perpendicular to the horizontal section 31 of the steel claw. The transition guide member 41 is a straight line perpendicular to the horizontal section 31 of the steel claw, positioned close to the anode aluminum guide rod 1, and extending to the horizontal section 31 of the steel claw at both ends. The end guide member 42 extends along the upper surface of the horizontal section 31 of the steel claw, with its end attached to the vertical side of the transition guide member 41. In this embodiment, the transition guide members 41 corresponding to the two steel claws are an integral structure, and the front guide member 40 is constructed by stacking multiple layers of guide plates in the extension direction perpendicular to the horizontal section 31 of the steel claw. Of course, in other embodiments, the front guide member 40 can be constructed as an integral guide block. In this embodiment, the transition guide members 41 corresponding to the two steel claws share one front guide member 40. Of course, in other embodiments, each transition guide 41 may correspond one-to-one with the front guide 40. In this case, two front guides 40 are respectively provided on the side of the anode aluminum guide rod 1 parallel to the horizontal section 31 of the steel claw, and correspondingly, each steel claw corresponds to an independent transition guide 41. In this embodiment, the end guide 42 is composed of multiple layers of guide plates stacked in the width direction of the horizontal section 31 of the steel claw. Of course, in other embodiments, the end guide 42 may be composed of an integral elongated guide block.

[0063] like Figure 7 In the illustrated embodiment, with Figure 3 Similar to the embodiment shown, the front guide 40 is located on the side of the anode aluminum guide rod 1 perpendicular to the horizontal section 31 of the steel claw, and the end guide 42 extends along the upper surface of the horizontal section 31 of the steel claw. The difference is that the steel claw and the transition guide 41 correspond one-to-one, and the transition guide 41 is a wedge-shaped block. The upper side of the narrow end of the transition guide 41 is connected to the lower side of the front guide 40, and the vertical end face of the wide end is connected to the vertical side of the end guide 42.

[0064] like Figure 8 In one of the two different embodiments shown in Figure 9, the end guide 42 is attached to the vertical side of the horizontal section 31 of the steel claw facing away from the anode aluminum guide rod 1. The front guide 40 is located on the side of the anode aluminum guide rod 1 perpendicular to the horizontal section 31 of the steel claw and extends downward to the lower side of the steel beam 2. The upper end of the front guide 40 is attached to the side of the anode aluminum guide rod 1, and the lower end of the front guide 40 passes around the steel beam 2 and extends to the lower side of the steel beam 2. The transition guide 41 is straight and located below the horizontal section 31 of the steel claw. Both ends of the transition guide 41 extend to the opposite vertical sides of the two horizontal sections 31 of the steel claw and connect with the end guide 42. The difference between the two embodiments is that, as shown in Figure 9, the end guide 42 is attached to the vertical side of the horizontal section 31 of the steel claw facing away from the anode aluminum guide rod 1 and extends downward to the lower side of the steel beam 2. The upper end of the front guide 40 is attached to the side of the horizontal section 31 of the steel claw facing away from the anode aluminum guide rod 1, and extends downward to the lower side of the steel beam 2. The lower end of the front guide 40 is attached to the side of the horizontal section 31 of the steel claw facing away from the anode aluminum guide rod 1, and extends downward to the lower side of the steel beam 2. The lower end of the front guide 40 is attached to the vertical ... Figure 8In the illustrated embodiment, the transition guide 41 is narrower, much smaller than the length of the horizontal section 31 of the steel claw, and is positioned close to the anode aluminum guide rod 1. The end of the transition guide 41 protrudes from the horizontal section 31 of the steel claw and is connected to an upward extension section 414. The upward extension section 414 is located at the end of the horizontal section 31 of the steel claw near the anode aluminum guide rod 1 and extends along the vertical side of the horizontal section 31. The upward extension section 414 is connected to the end of the end guide 42. Figure 9 In the illustrated embodiment, the width of the transition guide 41 is relatively wide, approaching the distance between the two vertical sections of the steel claw, and the lower end of the end guide 42 is directly attached to the upper side of the transition guide 41. In both embodiments, the front guide 40 is composed of multiple guide plates stacked in a direction perpendicular to the horizontal section 31 of the steel claw, and the end guide 42 is composed of multiple guide plates stacked in the length direction of the horizontal section 31 of the steel claw.

[0065] like Figure 10 In the illustrated embodiment, the end guide 42 is attached to the vertical side of the horizontal section 31 of the steel claw that faces away from the anode aluminum guide rod 1. The front guide 40 is located on the side of the anode aluminum guide rod 1 that is parallel to the horizontal section 31 of the steel claw and extends downward. The transition guide 41 is a straight line perpendicular to the horizontal section 31 of the steel claw, and is located below the front guide and within the interval between two horizontal sections of the steel claw on the same straight line. The end of the transition guide 41 extends to a position flush with the end guide 42. The opposite sides of the transition guide are connected to the adjacent ends of the end guides on the two horizontal sections of the steel claw on the same straight line. In this embodiment, the front guide 40 is composed of multiple guide plates stacked along the length direction of the horizontal section 31 of the steel claw, and the end guide 42 is composed of multiple guide plates stacked along the thickness direction (vertical direction) of the horizontal section 31 of the steel claw.

[0066] In the above embodiments, the flow guiding component included in the resistance-reducing flow guiding structure can be a steel flow guiding component, an aluminum flow guiding component, a steel-aluminum composite flow guiding component, a copper flow guiding component, or a copper-aluminum composite flow guiding component, as long as it has a smaller resistance than the steel beam.

[0067] In the above embodiments, the "applying" can be the corresponding sides of the two components being applied and welded together, or the corresponding sides of the two components being applied and crimped together using threaded connectors. The main purpose is to ensure good contact between the two components to ensure flow passage.

[0068] This invention's dual-anode structure significantly improves the current efficiency flowing from the anode aluminum guide rod 1 to the steel claw by adding a highly conductive, resistance-reducing current-guiding structure between the anode aluminum guide rod 1 and the steel claw. This effectively reduces the voltage drop between the two and achieves current sharing. This structural design can reduce the voltage of the steel claw by 20-50mV, providing a new approach to energy saving and consumption reduction in aluminum electrolysis cells.

[0069] An embodiment of the aluminum electrolytic cell of this utility model: The aluminum electrolytic cell includes a cell body, a cathode, and a dual anode group structure. Other structures included are the same as those in existing aluminum electrolytic cells and will not be described again here. In particular, its dual anode group structure is the same as the dual anode group structure described above.

[0070] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A twin anode group structure comprising an anode aluminum guide pole, a steel beam and a steel claw, characterized in that, The resistance-reducing flow guide structure comprises a terminal flow guide connected with the horizontal section of the steel claw, and further comprises a flow guide component connected with the anode aluminum guide rod and the terminal flow guide respectively to realize the electrically conductive connection between the anode aluminum guide rod and the terminal flow guide.

2. The dual anode group structure of claim 1, wherein The flow guide component is integrally formed with the terminal flow guide.

3. The dual anode group structure of claim 1, wherein The flow guide component is a separate component or a combined component.

4. The dual anode group structure according to claim 1 or 2 or 3, characterized in that, The terminal flow guide is attached to the upper surface or vertical side or lower surface of the horizontal section of the steel claw.

5. The dual anode group structure of claim 4, wherein The flow guide component comprises a front end flow guide and a transition flow guide, the front end flow guide is electrically connected with the anode aluminum guide rod, and the transition flow guide is connected with the front end flow guide and the terminal flow guide respectively to realize the electrically conductive connection between the front end flow guide and the terminal flow guide.

6. The dual anode group structure of claim 5, wherein the transition The front end flow guide extends upward and downward, and one side surface is attached to the vertical side surface of the anode aluminum guide rod.

7. The dual anode group structure of claim 6, wherein the transition The end of the flow guide away from the anode aluminum guide rod is connected to the end of the terminal flow guide closer to the anode aluminum guide rod.

8. The dual anode group structure of claim 6, wherein The terminal flow guide is attached to the upper surface of the horizontal section of the steel claw, the transition flow guide is in an arch shape and comprises a middle flat section close to the anode aluminum guide rod, two side inclined sections extending along the steel beam from both ends of the middle flat section, and a connecting end extending to the upper surface of the horizontal section of the steel claw at the end of the two side inclined sections.

9. The dual anode group structure of claim 6, wherein The terminal flow guide is attached to the upper surface of the horizontal section of the steel claw, the front end flow guide is on the side surface of the anode aluminum guide rod parallel to the horizontal section of the steel claw, the transition flow guide is in a straight line parallel to the horizontal section of the steel claw, the transition flow guide is close to the anode aluminum guide rod and extends to the upper surface of the steel beam at both ends, and the terminal flow guide extends along the steel beam and is attached to the vertical side surface of the transition flow guide away from the anode aluminum guide rod at one end and extends to the horizontal section of the steel claw at the other end.

10. The dual anode group structure of claim 6, wherein The terminal flow guide is attached to the upper surface of the horizontal section of the steel claw, the front end flow guide is on the side surface of the anode aluminum guide rod parallel to the horizontal section of the steel claw, the transition flow guide is in a straight line parallel to the horizontal section of the steel claw, the transition flow guide is close to the anode aluminum guide rod and extends to the end of the horizontal section of the steel claw away from the anode aluminum guide rod at both ends, the terminal flow guide is rectangular and one vertical side surface is attached to the vertical side surface of the transition flow guide away from the anode aluminum guide rod, and the lower side surface is overlapped on the horizontal section of the steel claw.

11. The dual anode group structure of claim 6, wherein The terminal flow guide is attached to the upper surface of the horizontal section of the steel claw, the front end flow guide is on the side surface of the anode aluminum guide rod perpendicular to the horizontal section of the steel claw, the transition flow guide is in a straight line perpendicular to the horizontal section of the steel claw, the transition flow guide is close to the anode aluminum guide rod and extends to the horizontal section of the steel claw at both ends, and the terminal flow guide extends along the upper surface of the horizontal section of the steel claw as a whole and is attached to the vertical side surface of the transition flow guide at the end.

12. The dual anode group structure of claim 6, wherein The end guide piece is attached to the upper surface of the horizontal section of the steel claw, the front end guide piece is on the side of the anode aluminum guide rod perpendicular to the horizontal section of the steel claw, the end guide piece extends along the upper surface of the horizontal section of the steel claw, the transition guide piece is a wedge-shaped block, the narrow end of which is connected to the front end guide piece, and the vertical end surface of the wide end is connected to the vertical side surface of the end guide piece.

13. The dual anode group structure of claim 5, wherein The end guide piece is attached to the vertical side surface of the horizontal section of the steel claw, the front end guide piece is on the side of the anode aluminum guide rod perpendicular to the horizontal section of the steel claw and extends downward to the lower side of the steel beam, the transition guide piece is linear and is on the lower side of the horizontal section of the steel claw, and the two ends of the transition guide piece extend to the opposite vertical side surfaces of the two horizontal sections of the steel claws and are connected to the end guide pieces.

14. The dual anode group structure of claim 5, wherein The end guide piece is attached to the vertical side surface of the horizontal section of the steel claw, the front end guide piece is on the side of the anode aluminum guide rod parallel to the horizontal section of the steel claw and extends downward, the transition guide piece is in the space between the two horizontal sections of the steel claws on the same straight line below the front end guide piece, and the opposite side surfaces of the transition guide piece are respectively connected to the adjacent ends of the end guide pieces on the two horizontal sections of the steel claws on the same straight line.

15. The dual anode group structure according to claim 1 or 2 or 3, wherein The resistance-reducing guide structure comprises a steel guide piece or an aluminum guide piece or a steel-aluminum composite guide piece or a copper guide piece or a copper-aluminum composite guide piece.

16. The dual anode group structure of claim 1 or 2 or 3, wherein, The resistance-reducing guide structure is a guide block or a guide plate or a guide belt.

17. An aluminium reduction cell comprising a dual anode set structure characterised by, The double anode group structure is the double anode group structure according to any one of claims 1-16.

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