Aluminum electrolysis anode steel claw copper inserting structure
By welding a copper metal layer onto the aluminum electrolytic anode steel claw and bonding it to the anode carbon block, a copper-steel explosive composite steel claw is formed, which solves the problem of high contact pressure drop between the anode steel claw and the carbon block, improves conductivity, and reduces energy consumption.
Patent Information
- Application Number
- CN202520211722.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-11
AI Technical Summary
The existing aluminum electrolysis anode steel claw and anode carbon block have a high iron-carbon contact voltage drop, which leads to a decrease in anode conductivity, affects current efficiency and primary aluminum quality, and increases energy consumption.
The copper-steel explosive composite steel claw structure is adopted. By welding a copper metal layer around the main body of the steel claw and bonding it to the anode carbon block with phosphorus pig iron casting, a connection between the copper-steel explosive composite steel claw and the anode carbon block is formed, which reduces the iron-carbon contact pressure drop.
It effectively reduces the contact resistance between the copper-steel explosion-proof composite steel claw and the anode carbon block, improves conductivity, reduces energy consumption, and reduces operating costs.
Smart Images
Figure CN223837589U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of aluminum electrolytic smelting production technology, and specifically relates to a copper insertion structure for steel claws of aluminum electrolytic anodes. Background Technology
[0002] The anode is an important component of the aluminum electrolytic cell. The connection between the anode steel claw and the anode carbon block is made by casting and bonding with phosphorus pig iron. Therefore, the iron-carbon contact voltage drop of the anode casting part is an important part of the anode voltage drop. However, the voltage drop of the iron-carbon contact in the existing anode casting part is about 60 to 140 mV, accounting for 1 / 3 to 1 / 2 of the total anode voltage drop. The high voltage drop will affect the conductivity of the anode, causing the anode to fall off, affecting the current efficiency and the quality of the primary aluminum, and resulting in high contact energy consumption. Utility Model Content
[0003] To address the aforementioned issues, this invention provides a copper insertion structure for aluminum electrolysis anode steel claws, which can minimize the contact resistance between the anode steel claws and the copper-steel explosion composite layer, reduce contact energy consumption, and thus lower operating costs.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A copper-inserting structure for an aluminum electrolysis anode steel claw includes an anode guide rod, a copper-steel explosive composite steel claw, and an anode carbon block. One end of the anode guide rod is connected to the cathode, and the other end is connected to the copper-steel explosive composite steel claw. The surface of the anode carbon block facing away from the anode guide rod is connected to the anode carbon block. The copper-steel explosive composite steel claw includes a steel claw body and a copper metal layer, and the copper metal layer is disposed on the periphery of the steel claw body.
[0006] Preferably, the copper-steel explosive composite claw further includes a connecting crossbar, which has a first connecting end and a second connecting end. The connecting crossbar is connected to the anode guide rod through the first connecting end and is arranged perpendicular to the anode guide rod. The second connecting end is used to connect to the claw body.
[0007] Preferably, the diameter of the second connecting end is the same as the diameter of the copper-steel explosive composite steel claw.
[0008] Preferably, the number of the second connecting end and the copper-steel explosive composite steel claw is four, and they are arranged in an array along the length direction of the connecting crossbar.
[0009] Preferably, the copper metal layer is flush with the end face of the steel claw body that is away from the anode guide rod.
[0010] Preferably, the diameter of the copper-steel explosive composite steel claw ranges from 115mm to 125mm, and the length ranges from 290mm to 310mm.
[0011] Preferably, the area of the copper metal layer in the cross-section of the copper-steel explosive composite claw is larger than the area of the claw body.
[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows:
[0013] A copper metal layer is welded to the periphery of the steel claw body to form a copper-steel explosive composite steel claw. The copper-steel explosive composite steel claw and the anode carbon block are bonded together by casting with phosphorus pig iron to form an aluminum electrolytic anode. By utilizing the conductivity and structural position of copper metal, the iron-carbon contact voltage drop value of the cast part between the copper-steel explosive composite steel claw and the anode carbon block is reduced, thereby improving the conductivity of the copper-steel explosive composite steel claw, reducing energy consumption, and further reducing operating costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the aluminum electrolytic anode steel claw inserting copper structure of this utility model;
[0015] Figure 2 This is a cross-sectional view of the copper insertion structure of the aluminum electrolytic anode steel claw of this utility model;
[0016] Figure 3 This is a schematic diagram from another angle of the structure of the copper hook part of the aluminum electrolytic anode steel claw of this utility model.
[0017] In the attached diagram, 1-anode guide rod, 2-copper-steel explosive composite steel claw, 21-steel claw body, 22-copper metal layer, 23-connecting crossbar, 231-first connecting end, 232-second connecting end, and 3-anode carbon block. Detailed Implementation
[0018] To make the objectives, technical solutions and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0019] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.
[0020] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0022] To resolve the above issues, please refer to [link / reference]. Figures 1 to 3 This utility model provides an aluminum electrolysis anode steel claw insertion copper structure, including an anode guide rod 1, a copper-steel explosive composite steel claw 2, and an anode carbon block 3; one end of the anode guide rod 1 is connected to the cathode, and the other end is connected to the copper-steel explosive composite steel claw 2. The surface of the anode carbon block 3 facing away from the anode guide rod 1 is connected to the anode carbon block 3. The copper-steel explosive composite steel claw 2 includes a steel claw body 21 and a copper metal layer 22, and the copper metal layer 22 is disposed on the periphery of the steel claw body 21. The connection between the copper-steel explosive composite steel claw 2 and the anode carbon block 3 is formed by casting and bonding with phosphorus pig iron. The copper metal layer 22 has a hollow cylindrical structure, while the steel claw body 21 has a cylindrical structure. The steel claw body 21 is inserted into the hollow part of the copper metal layer 22 and is in contact with each other. When the steel claw body 21 is fully inserted into the copper metal layer 22, the surface of the steel claw body 21 facing away from the anode guide rod 1 is flush with the surface of the copper metal layer 22 facing away from the anode guide rod 1. The connection is made by non-ferrous welding, which improves the connection strength between the steel claw body 21 and the copper metal layer 22 and prevents the steel claw body 21 from separating from the copper metal layer 22. The steel claw body 21 is made of high-quality steel, usually strip steel or I-beams, etc. Its function is to reduce aluminum ions to pure aluminum through electrolysis, and at the same time, there will be an oxidation reaction to form oxides, so that the purity of aluminum meets the requirements.
[0023] In an optional embodiment, as shown in the figure Figure 1As shown, the copper-steel explosive composite steel claw 2 also includes a connecting crossbar 23. The connecting crossbar 23 has a first connecting end 231 and a second connecting end 232. The connecting crossbar 23 is connected to the anode guide rod 1 through the first connecting end 231 and is arranged perpendicular to the anode guide rod 1. The second connecting end 232 is used to connect the steel claw body 21. Specifically, the connecting crossbar 23 expands the connection area between the anode guide rod 1 and the steel claw body 21, allowing the anode guide rod 1 to connect to multiple steel claw bodies 21 to meet the needs of production scale. There is no transition welding between the anode guide rod 1 and the connecting crossbar 23, while the connecting crossbar 23 and the steel claw body 21 are integrally formed structures or separately welded connections, which improves the conductive area and mechanical connection strength, and reduces power consumption.
[0024] In optional embodiments, such as Figure 2 As shown, the diameter of the second connecting end 232 is the same as the diameter of the copper-steel explosive composite steel claw 2. This makes the connection between the connecting crossbars 23 and the copper-steel explosive composite steel claw 2 smooth and without abruptness, improving electrical conductivity.
[0025] In optional embodiments, such as Figure 2 As shown, the second connecting end 232 and the number of copper-steel explosive composite steel claws 2 are four, and they are arranged in an array along the length direction of the connecting crossbar 23. In this embodiment, the number of copper-steel explosive composite steel claws 2 is four, but in practical applications, the number of copper-steel explosive composite steel claws 2 is not limited to four. The number of copper-steel explosive composite steel claws 2 is selected according to the size of the electrolytic cell and production requirements to adapt to production needs and ensure that each position in the electrolytic cell can obtain a proper electrolytic reaction.
[0026] In optional embodiments, such as Figure 2 and Figure 3 As shown, the copper metal layer 22 and the steel claw body 21 are flush with the end face away from the anode guide rod 1. Specifically, the flush design of the end faces allows both the copper metal layer 22 and the steel claw body 21 to be tightly connected to the anode carbon block 3, which can reduce the voltage drop of the copper-steel explosive composite steel claw 2 and ensure conductivity.
[0027] In an optional embodiment, the diameter of the copper-steel explosive composite claw 2 ranges from 115mm to 125mm, and the length ranges from 290mm to 310mm. Specifically, the diameter of the copper-steel explosive composite claw 2 can be selected from 115mm, 120mm, and 125mm, and the length can be selected from 290mm, 295mm, 300mm, and 310mm. In practical applications, the dimensions mentioned above are not limited to those specified. In this embodiment, the diameter of the copper-steel explosive composite claw 2 is selected from 120mm, and the length is selected from 300mm.
[0028] In optional embodiments, such as Figure 3 As shown, the area of the copper metal layer 22 in the cross-section of the copper-steel explosive composite claw 2 is larger than the area of the claw body 21. The large area of the copper metal layer 22 can effectively reduce the anode voltage, thereby reducing energy consumption. Further comparison of actual usage results shows that copper has a conductor resistivity ≤0.01724 mm² / m and conductivity second only to silver, effectively reducing resistance. After adding the highly conductive copper metal layer 22 to the claw body 21, the overall voltage drop of the copper-steel explosive composite claw 2 was measured to be 50 mV. Compared with the traditional original structure, the voltage value was reduced by approximately 15 mV, achieving the goal of reducing the voltage drop of the copper-steel explosive composite claw 2.
[0029] In summary, a copper metal layer 22 is welded to the periphery of the steel claw body 21 to form a copper-steel explosive composite steel claw 2. The copper-steel explosive composite steel claw 2 and the anode carbon block 3 are bonded together by casting with phosphorus pig iron to form an aluminum electrolytic anode. By utilizing the conductivity and structural position of copper metal, the iron-carbon contact voltage drop value of the cast part between the copper-steel explosive composite steel claw 2 and the anode carbon block 3 is reduced, thereby improving the conductivity of the copper-steel explosive composite steel claw 2, reducing energy consumption, and further reducing operating costs.
[0030] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A copper insertion structure for a steel claw at the anode of an aluminum electrolysis anode, characterized in that, It includes an anode guide rod, a copper-steel explosive composite steel claw, and an anode carbon block; one end of the anode guide rod is connected to the cathode, and the other end is connected to the copper-steel explosive composite steel claw. The surface of the anode carbon block facing away from the anode guide rod is connected to the anode carbon block. The copper-steel explosive composite steel claw includes a steel claw body and a copper metal layer. The copper metal layer is disposed on the periphery of the steel claw body.
2. The aluminum electrolytic anode steel claw insertion copper structure according to claim 1, characterized in that, The copper-steel explosive composite steel claw also includes a connecting crossbar, which has a first connecting end and a second connecting end. The connecting crossbar is connected to the anode guide rod through the first connecting end and is arranged perpendicular to the anode guide rod. The second connecting end is used to connect to the main body of the steel claw.
3. The aluminum electrolytic anode steel claw insertion copper structure according to claim 2, characterized in that, The diameter of the second connecting end is the same as the diameter of the copper-steel explosive composite steel claw.
4. The aluminum electrolytic anode steel claw insertion copper structure according to claim 2, characterized in that, The second connecting end and the copper-steel explosive composite steel claw are four in number and are distributed in an array along the length of the connecting crossbar.
5. The aluminum electrolytic anode steel claw insertion copper structure according to claim 1, characterized in that, The copper metal layer is flush with the end face of the steel claw body that is away from the anode guide rod.
6. The aluminum electrolytic anode steel claw insertion copper structure according to claim 1, characterized in that, The diameter of the copper-steel explosive composite steel claw ranges from 115mm to 125mm, and the length ranges from 290mm to 310mm.
7. The aluminum electrolytic anode steel claw insertion copper structure according to claim 6, characterized in that, In the cross-section of the copper-steel explosive composite claw, the area of the copper metal layer is larger than the area of the main body of the claw.