Anti-deformation anode guide rod group

Abstract

The utility model relates to an anti-deformation anode guide rod group which comprises an anode steel claw, a steel-aluminum connecting piece and an anode guide rod, the steel-aluminum connecting piece is used for connecting the anode steel claw and the anode guide rod together, the anode steel claw comprises a cross beam and a claw part, and the steel-aluminum connecting piece comprises a plurality of steel-aluminum composite sheets which are stacked and tightly arranged; the steel-aluminum composite sheet comprises steel sheets and an aluminum sheet which are tightly composited together, the steel-aluminum connecting piece is provided with an aluminum welding face welded to the side face of the anode guide rod and a steel welding face welded to the upper surface of the cross beam, and the steel welding faces are formed by the side faces, used for being welded to the cross beam, of the steel sheets. The side face, used for being welded with the anode guide rod, of each aluminum sheet forms an aluminum welding face, and the cross beam is provided with a deformation joint for the cross beam to expand and deform. The deformation joint in the anti-deformation anode guide rod group can provide a certain stress deformation space for the cross beam when the cross beam is conductive, heated and expanded, and the deformation stress of the cross beam is reduced, so that the deformation of the anode guide rod group is reduced, and the service life of the anode guide rod group is prolonged.

Description

Technical Field

[0001] This application relates to the field of anode guide rod assembly technology, and in particular to a deformation-resistant anode guide rod assembly. Background Technology

[0002] The anode of an aluminum electrolytic cell is one of the important raw materials in the production of electrolytic aluminum. It acts as a conductor, introducing direct current into the electrolyte layer, and simultaneously participates in the anodic reaction of electrolysis as a carbon material. In existing technology, the anode of an aluminum electrolytic cell consists of an anode guide rod assembly and an anode carbon block. The anode guide rod assembly mainly includes the anode guide rod, the anode steel claw, and a steel-aluminum connection structure that welds the anode guide rod and the anode steel claw together. The anode steel claw includes a crossbeam and a claw portion. Currently, the steel-aluminum connection structure is usually a steel-aluminum explosive weld block, using a steel-aluminum explosive weld block transition welding method to weld the anode guide rod and the crossbeam of the anode steel claw together. The claw portion of the anode steel claw is cast into the carbon bowl of the anode carbon block using pig iron.

[0003] During the electrolytic aluminum production process, the anode steel claws in an aluminum electrolytic cell expand due to heat, as do the anode carbon blocks. Because the claws are cast within the carbon bowls of the anode carbon blocks, and the coefficient of thermal expansion of the carbon blocks is less than that of the claws, the expansion length of the anode steel claw's crossbeam is greater than that of the carbon blocks. This causes the crossbeam of the anode steel claw to arch upwards, and the claws to bend inwards. As the number of usage cycles of the anode steel claws increases, the deformation gradually intensifies. According to relevant data, after a period of production, a certain factory experienced 2000 sets of anode guide rod assemblies repaired per month, with a 55% deformation and damage rate of the anode steel claws, severely shortening the service life of the anode guide rod assemblies. Utility Model Content

[0004] This application provides an anti-deformation anode guide rod assembly to solve the technical problems of easy deformation and short service life of the anode guide rod assembly in the prior art.

[0005] The anti-deformation anode guide rod assembly provided in this application adopts the following technical solution:

[0006] A deformation-resistant anode guide rod assembly includes an anode steel claw, a steel-aluminum connector, and an anode guide rod. The steel-aluminum connector is used to connect the anode steel claw and the anode guide rod together. The anode steel claw includes a crossbeam and a claw portion. The steel-aluminum connector includes multiple steel-aluminum composite sheets arranged in close layers. The steel-aluminum composite sheets include steel sheets and aluminum sheets tightly bonded together. The steel-aluminum connector has an aluminum welding surface for welding to the side of the anode guide rod and a steel welding surface for welding to the upper surface of the crossbeam. The side of each steel sheet used for welding to the crossbeam forms the steel welding surface, and the side of each aluminum sheet used for welding to the anode guide rod forms the aluminum welding surface. An expansion joint is provided on the crossbeam to allow the crossbeam to expand and deform.

[0007] Its beneficial effects are as follows: Firstly, the expansion joint provides a certain stress deformation space for the crossbeam when it expands under conductive heat, reducing the deformation stress of the crossbeam and thus reducing the deformation of the anode guide rod assembly, extending its service life. Secondly, the steel-aluminum connector includes multiple tightly stacked steel-aluminum composite sheets. When welding the anode guide rod and anode claw using the steel-aluminum composite sheets, the steel-aluminum connector, anode guide rod, and anode claw all have a large welding area, thereby increasing the actual contact area between the anode guide rod and anode claw. This not only reduces the pressure drop between the anode guide rod and anode claw but also improves the connection strength between the anode guide rod and anode claw.

[0008] Optionally, two steel-aluminum connectors are provided, and the two steel-aluminum connectors are located on opposite sides of the anode guide rod, and the expansion joint is located on the crossbeam between the two steel-aluminum connectors.

[0009] Optionally, the expansion joint extends along the length of the anode guide rod.

[0010] Optionally, the expansion joint extends through the crossbeam and divides the crossbeam into several segments.

[0011] Its beneficial effect is that it can better provide stress deformation space for the beam when it is electrically conductive and thermally expanded, thereby reducing the deformation stress of the beam.

[0012] Optionally, the extension length of the expansion joint is 5-10 mm.

[0013] Optionally, the thickness of the steel-aluminum composite sheet is 4-10 mm.

[0014] Its beneficial effects are as follows: due to the small thickness of the steel-aluminum composite sheet, it can fully penetrate the weld when welding the steel-aluminum composite sheet to the anode guide rod and the anode steel claw, ensuring the welding quality and ensuring that the anode guide rod and the anode steel claw can be firmly connected, thereby increasing the connection strength between the anode guide rod and the anode steel claw and preventing the anode steel claw from deforming and falling off during use.

[0015] Optionally, a guide rod slot extending along the length of the anode guide rod is provided on the end face of the anode guide rod near the crossbeam.

[0016] Its beneficial effects are: the guide rod joint combined with the expansion joint can better provide stress deformation space for the crossbeam when it is electrically heated and expands, thus reducing the deformation stress of the crossbeam. Attached Figure Description

[0017] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, and the same or corresponding reference numerals denote the same or corresponding parts, wherein:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of the anti-deformation anode guide rod assembly of this application;

[0019] Figure 2 This is a front view of Embodiment 1 of the anti-deformation anode guide rod assembly of this application;

[0020] Figure 3 This is a schematic diagram of the steel-aluminum composite sheet in Embodiment 1 of the anti-deformation anode guide rod assembly of this application;

[0021] Figure 4 This is a front view of Embodiment 2 of the anti-deformation anode guide rod assembly of this application;

[0022] Figure 5 This is a front view of Embodiment 3 of the anti-deformation anode guide rod assembly of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Anode guide rod; 2. Steel-aluminum connector; 21. Steel sheet; 22. Aluminum sheet; 3. Anode steel claw; 31. Crossbeam; 32. Claw part; 4. Expansion joint; 5. Guide rod seam. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] Reference Figures 1-3 Embodiment 1 of the anti-deformation anode guide rod assembly provided in this application includes an anode steel claw 3, a steel-aluminum connector 2, and an anode guide rod 1 made of aluminum. The steel-aluminum connector 2 is used to connect the anode steel claw 3 and the anode guide rod 1 together. The anode steel claw 3 includes a crossbeam 31 and a claw portion 32.

[0027] Continue to refer to Figures 1-3Two steel-aluminum connectors 2 are provided, and the two steel-aluminum connectors 2 are located on opposite sides of the anode guide rod 1. The steel-aluminum connector 2 has an aluminum welding surface for welding to the side of the anode guide rod 1 and a steel welding surface for welding to the upper surface of the crossbeam 31. The steel-aluminum connector 2 includes multiple steel-aluminum composite sheets arranged in close stacks. In order to ensure that the steel-aluminum composite sheets can be fully penetrated when welding to the anode guide rod 1 and the anode steel claw 3, and to ensure the welding quality, each steel-aluminum composite sheet is welded separately, and the overall thickness of the steel-aluminum composite sheet is small, with each sheet having a thickness of 4-10mm. The steel-aluminum composite sheet includes steel sheets 21 and aluminum sheets 22 tightly bonded together, and the steel sheets 21 and aluminum sheets 22 are tightly bonded together using existing technology. The side of each steel sheet 21 used for welding to the crossbeam 31 forms the steel welding surface, and the side of each aluminum sheet 22 used for welding to the anode guide rod 1 forms the aluminum welding surface.

[0028] Continue to refer to Figures 1-3 The crossbeam 31 is provided with an expansion joint 4 for the crossbeam 31 to expand and deform. In this embodiment, the expansion joint 4 is located between the two steel-aluminum connectors 2 on the crossbeam 31, and the expansion joint 4 extends along the length direction of the anode guide rod 1, penetrates the crossbeam 31 and divides the crossbeam 31 into two sections.

[0029] The implementation principle of the anti-deformation anode guide rod assembly in Embodiment 1 of this application is as follows: When welding steel-aluminum composite sheets, each steel-aluminum composite sheet is individually welded to the corresponding crossbeam 31 or anode guide rod 1. After the welding of a single steel-aluminum composite sheet is completed, the next steel-aluminum composite sheet is then stacked and welded. In use, a certain number of steel-aluminum composite sheets can be stacked according to the size of the crossbeam 31 of the anode guide rod 1 and the anode steel claw 3 so that the anode guide rod 1 and the anode steel claw 3 can be firmly connected.

[0030] The beneficial effects of the anti-deformation anode guide rod assembly in Embodiment 1 of this application are as follows: Firstly, the deformation joint 4 provides a certain stress deformation space for the crossbeam 31 when it expands under conductive heat. Combined with the deformation joint 4, it better provides stress deformation space for the crossbeam 31 when it expands under conductive heat, reducing the deformation stress of the crossbeam 31, thereby reducing the deformation of the anode guide rod assembly and extending its service life. Secondly, the steel-aluminum connector includes multiple tightly stacked steel-aluminum composite sheets. When welding the anode guide rod 1 and the anode steel claw 3 using the steel-aluminum composite sheets, the steel-aluminum connector, the anode guide rod 1, and the anode steel claw 3 all have a large welding area, thereby increasing the actual contact area between the anode guide rod 1 and the anode steel claw 3. This not only reduces the pressure drop between the anode guide rod 1 and the anode steel claw 3 but also improves the connection strength between the anode guide rod 1 and the anode steel claw 3.

[0031] Reference Figure 4The difference between Embodiment 2 of the anti-deformation anode guide rod assembly provided in this application and Embodiment 1 above is that the deformation joint 4 extends along the length direction of the anode guide rod 1 but does not penetrate the crossbeam 31, and the extension length of the deformation joint 4 is 5-10mm.

[0032] Reference Figure 5 The difference between Embodiment 3 of the anti-deformation anode guide rod assembly provided in this application and Embodiment 1 above is that a guide rod slot 5 extending along the length direction of the anode guide rod 1 is provided on the end face of the anode guide rod 1 near the crossbeam 31. In use, the guide rod slot 5, together with the deformation slot 4, can better provide stress deformation space for the crossbeam 31 when it expands under conductive heat, thereby reducing the deformation stress of the crossbeam 31.

[0033] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are used only for the purpose of facilitating the explanation of the present application and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the stated specific orientation, or be constructed and operated in a specific orientation. Therefore, the aforementioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present application. Furthermore, in the description of this specification, "multiple" means at least two, such as two, three, or more, unless otherwise explicitly specified.

Claims

1. A deformation-resistant anode guide rod assembly, comprising an anode steel claw (3), a steel-aluminum connector (2), and an anode guide rod (1), wherein the steel-aluminum connector (2) is used to connect the anode steel claw (3) and the anode guide rod (1) together, and the anode steel claw (3) comprises a crossbeam (31) and a claw portion (32), characterized in that, The steel-aluminum connector (2) includes multiple steel-aluminum composite sheets arranged in close layers; the steel-aluminum composite sheet includes steel sheets (21) and aluminum sheets (22) tightly bonded together, the steel-aluminum connector (2) has an aluminum welding surface for welding to the side of the anode guide rod (1) and a steel welding surface for welding to the upper surface of the crossbeam (31), the side of each steel sheet (21) for welding to the crossbeam (31) forms the steel welding surface, the side of each aluminum sheet (22) for welding to the anode guide rod (1) forms the aluminum welding surface, and the crossbeam (31) is provided with a deformation joint (4) for the crossbeam (31) to expand and deform.

2. The anti-deformation anode guide rod assembly according to claim 1, characterized in that, There are two steel-aluminum connectors (2), and the two steel-aluminum connectors (2) are located on opposite sides of the anode guide rod (1). The deformation joint (4) is located on the crossbeam (31) between the two steel-aluminum connectors (2).

3. The anti-deformation anode guide rod assembly according to claim 1 or 2, characterized in that, The expansion joint (4) extends along the length of the anode guide rod (1).

4. The anti-deformation anode guide rod assembly according to claim 3, characterized in that, The expansion joint (4) penetrates the crossbeam (31) and divides the crossbeam (31) into several segments.

5. The anti-deformation anode guide rod assembly according to claim 3, characterized in that, The extension length of the expansion joint (4) is 5-10 mm.

6. The anti-deformation anode guide rod assembly according to claim 1, characterized in that, The thickness of the steel-aluminum composite sheet is 4-10mm.

7. The anti-deformation anode guide rod assembly according to claim 1, characterized in that, A guide rod slot (5) extending along the length direction of the anode guide rod (1) is provided on the end face of the anode guide rod (1) near the crossbeam (31).

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