Anode metal conductive device for aluminum electrolysis cell

Abstract

The invention relates to an anode metal conductive device for an aluminum electrolysis cell, which aims to solve the problems that the voltage drop resistance value of an iron-carbon contact interface is high due to the adoption of a construction mode of casting a phosphorus iron ring by phosphorus pig iron in the process of combining and assembling the existing anode conductive device for the aluminum electrolysis cell consisting of an aluminum guide rod, an explosion soldering lug and an anode steel claw with an anode carbon block; the novel technical scheme is characterized in that an anode metal conductive device is replaced by a conductive stand column instead of an anode steel claw in the prior art, an anode conductive cross beam is used for replacing a ferrophosphorus ring, and the anode conductive cross beam is assembled in an anode conductive concave groove in the upper part of an anode carbon block; and an innovative technical scheme of anode conductive connection is implemented. And an optimized conductive connection structure design between the anode conductive cross beam and the anode conductive concave groove is provided, so that the aims of reducing the resistivity of the aluminum electrolysis cell, reducing the power consumption of anode production and reducing the production cost of electrolytic aluminum in the electrolysis production process are fulfilled.

Description

[0001] Technical field: An anode metal conductive device for an aluminum electrolytic cell is mainly used in the production of aluminum electrolytic cells and the assembly of anode conductive devices for aluminum electrolytic cells.

[0002] Background technology: The commonly used anode metal conductive device of aluminum electrolytic cell is mainly composed of aluminum guide rod, aluminum-steel composite explosion welding sheet, and anode steel claw. In the process of electrolytic aluminum production, the anode metal conductive device and the anode carbon block with a circular carbon bowl arranged in the boss are assembled to form a complete anode conductive device. An important technical feature of the prior art is that when the anode steel claw of the anode metal conductive device is used to assemble the anode carbon block as a whole, the anode steel claw head is first inserted into the anode carbon bowl on the upper part of the anode carbon block, and then the heated molten phosphorus pig iron is cast in the annular groove between the anode steel claw head and the circular anode carbon bowl. After cooling, a component "phosphorus iron ring" is formed between the anode steel claw head and the anode carbon bowl to connect the anode steel claw and the anode carbon block for conductive connection and structural connection. That is, the phosphorus iron ring is used as the intermediate connecting component between the anode steel claw head and the anode carbon block to construct a complete anode carbon block steel claw group. Then, the anode carbon block steel claw group is installed and fixed on the anode busbar of the aluminum electrolytic cell using a small box clamp, and the anode current is passed through the anode metal conductive device and the anode carbon block to make it participate in the electrolytic thermoelectrochemical reaction.

[0003] The production process of electrolytic aluminum is a production process that consumes anode carbon blocks. When the anode is consumed to the residual anode stage, the residual carbon block and the upper anode metal conductive device must be taken out of the electrolytic cell, and the residual anode carbon block and the ferrophosphorus ring must be unloaded and pressed off from the anode steel claw by mechanical pressing, so that the anode metal conductive device can be re-cast with a new anode carbon block to form a new anode carbon block steel claw group for recycling use.

[0004] The existing anode metal conductive device equipped with anode steel claws has the following main technical defects: first, when assembling the anode carbon block and the anode steel claw head, the anode carbon block and the anode steel claw are connected to each other through a conductive structure by hot casting a phosphorus iron ring in the anode carbon bowl of the circular boss, which not only wastes the heating electric energy consumption of phosphorus pig iron, but also causes a relatively high overall voltage drop of the anode conductive device due to the addition of a phosphorus iron ring transition layer with a relatively high resistance value between the anode steel claw head and the anode carbon bowl, resulting in a current consumption of about 350kAW per ton of electrolytic aluminum, resulting in a low overall current efficiency of the aluminum electrolytic cell; second, when assembling the anode metal conductive device and the anode carbon block and separating and pressing the residual anode carbon block from the anode steel claw, not only a large amount of AC power consumption is required, but also a large amount of pressing and assembling and lifting and transportation equipment needs to be configured, resulting in a high investment cost in electrolytic aluminum production.

[0005] In order to reduce the DC power consumption of electrolytic aluminum production and the AC power consumption of anode assembly, realize the technical goal of energy-saving and emission-reduction low-carbon production of electrolytic aluminum, and reduce the technical goal of production process cost of electrolytic aluminum, the engineering and technical personnel of the electrolytic aluminum industry at home and abroad have been conducting scientific and technological research on the common core technical problems existing in the electrolytic aluminum industry, such as the high structural voltage drop, large resistance value, complex production process, and high process cost, in the production process of anode steel claws and cast phosphorus pig iron in anode carbon bowl to construct anode assembly anode carbon blocks, and strive to achieve the goal of reducing the energy consumption of electrolytic aluminum production through technological innovation, but there has been no breakthrough progress and industrial application reports so far. For this reason, the present invention proposes a technical solution for the construction of a new type of anode conductive device.

[0006] Invention content: The structural technical scheme of the anode conductive device of an aluminum electrolytic cell described in the present invention has the following innovations: first, an anode metal conductive device composed of an aluminum guide rod, an aluminum-steel composite connecting piece, an anode conductive column, and an anode conductive crossbeam replaces the existing anode metal conductive configuration composed of an aluminum guide rod, an aluminum-steel composite connecting piece, and an anode steel claw; second, an anode conductive concave groove constructed on the top of the anode carbon block replaces the structural configuration of the anode circular carbon bowl set on the anode boss in the prior art, that is, the circular carbon bowl on the upper part of the anode carbon block boss is cancelled and replaced by the anode conductive concave groove; third, an anode conductive crossbeam arranged and assembled in the anode conductive concave groove replaces the phosphorus iron ring as a structural connecting piece and conductive connecting medium between the anode conductive column and the anode carbon block, so as to realize the structural connection and conductive connection between the anode conductive device and the anode carbon block, that is, the two non-iron and carbon parts of the iron and carbon; fourth, a cold combination assembly process of inserting the anode conductive crossbeam and the anode conductive concave groove into an inlay type replaces the hot combination assembly production process of casting the phosphorus iron ring between the anode steel claw and the anode carbon block in the prior art. That is, the goal of energy conservation, carbon reduction and emission reduction in electrolytic aluminum production can be achieved through technological innovation of the combined structure of the above-mentioned anode conductive metal structure and anode carbon block structure and innovation of the assembly production process.

[0007] According to the above technical scheme, a novel anode metal conductive device described in the present invention is composed of an aluminum guide rod, an aluminum-steel composite explosion welding sheet, an anode conductive column and an anode conductive beam arranged at the bottom of the anode conductive column.

[0008] According to the above technical solution, a new type of anode metal conductive device described in the present invention and the anode carbon block configured therewith are provided with an anode conductive boss and an anode conductive concave groove on the upper part.

[0009] According to the above technical scheme, an anode metal conductive device described in the present invention, wherein the anode conductive beam is arranged below the anode conductive column, is a combined connecting component and a conductive connecting component for iron-carbon connection between the anode conductive metal device and the anode carbon block, that is, the anode conductive column or conductive column plate is used to replace the anode steel claw beam and the anode steel claw head of the prior art, and the anode conductive beam is used to replace the phosphorus iron ring of the iron-carbon combined connecting component of the prior art to implement the structural connection and conductive connection between the anode conductive metal component and the anode carbon block.

[0010] According to the above technical solution, the anode conductive beam of the anode metal conductive device described in the present invention is a conductive connecting component assembled in the anode conductive concave groove. Its cross-sectional shape is a rectangular or trapezoidal strip metal structure, and the upper part of the anode conductive beam is welded and conductively connected to the anode conductive column.

[0011] According to the above technical solution, the anode conductive beam of the anode metal conductive device described in the present invention is a conductive connecting component assembled in the anode conductive concave groove. Its cross-sectional shape is a rectangular or trapezoidal strip metal structure, and the upper part of the anode conductive beam is welded and conductively connected to the anode conductive column.

[0012] According to the above technical scheme, the anode conductive beam of the anode metal conductive device described in the present invention is assembled into the anode conductive concave groove by extrusion or inlaying method, that is, the cold mechanical assembly process to realize the iron-carbon connection structure and the conductive connection structure.

[0013] According to the above technical solution, a novel anode metal conductive device described in the present invention, when adopting a structural design of assembling two left-right symmetrical anode conductive beams and two anode conductive concave grooves on the upper part of the anode carbon block, the upper part of the two anode conductive beams is correspondingly provided with two left-right symmetrical anode conductive columns, and a horizontal width adjustment device for adjusting the installation gap size between the two anode conductive beams is provided on the anode conductive columns. That is, by adjusting the two anode conductive columns and the conductive beam to adjust the clamping force between the two anode conductive bosses, the connection structural strength and the density of the conductive connection are adjusted.

[0014] According to the above technical solution, in the anode metal conductive device described in the present invention, the cross-sectional shape of the anode conductive beam can be set to be rectangular, trapezoidal, or a structural form with mortise and tenon joints on the side.

[0013] According to the above technical solution, in order to improve the connection strength and conductivity between the anode conductive column and the anode conductive beam, a conductive connection strengthening plate or a conductive connection horizontal plate can be added at the connection between the anode conductive column and the anode conductive beam. In order to improve the connection strength and conductivity between the anode conductive column and the anode conductive beam, an anode conductive connection adjustment device can be provided at the connection between the anode conductive column and the anode conductive beam.

[0015] In the process of electrolytic aluminum production, the anode metal conductive device described in the present invention can achieve the following significant technical progress effects compared with the prior art. First, the anode conductive crossbeam is used to replace the existing phosphorus iron ring, which can not only reduce the voltage drop resistance value of the iron-carbon contact component and reduce the DC power consumption of electrolytic aluminum production, but also change its assembly process and reduce the assembly construction cost of the anode conductive device. Second, the anode conductive crossbeam is used to replace the phosphorus iron ring, which can not only reduce the resistance value of the conductive material by improving the conductive performance of the anode conductive metal material; but also provide innovation space for the improvement of its conductive structure. Third, the anode conductive column is used to replace the anode steel claw and the anode steel claw head, which can not only reduce the structural production and manufacturing cost of the anode conductive device, but also extend the service life of the anode conductive device, prevent the thermal pressure deformation of the anode conductive device, and improve the conductive quality of the anode conductive device. Fourth, the anode conductive device adopts a cold assembly process to replace the production process of the hot assembly process in the prior art. Not only can the process power consumption of the anode assembly be reduced, but also the assembly process cost and equipment investment cost can be reduced.

[0016] Description of the drawings: The technical solution and technical features of the anode conductive metal device described in the present invention can be more clearly expressed through the description of the drawings and the description of the specific embodiments.

[0017] Figure 1 Front view of the steel claw assembly of the anode carbon block in the prior art.

[0018] Figure 2 for Figure 1 Side view of.

[0019] Figure 3 for Figure 1 Assembly plan diagram.

[0020] Figure 4 This is the front view of embodiment 1 of the present invention.

[0021] Figure 5 for Figure 4 Side view of.

[0022] Figure 6 for Figure 4 Top view of the .

[0023] Figure 7 This is a front view of embodiment 3 of the present invention.

[0024] Figure 8 for Figure 7 Side view of.

[0025] Fig. 9 For Example 4 of the present invention, Front view of Example 5.

[0026] Fig.10 for Fig. 9 Side view of.

[0025] Fig.11 It is the front view of Example 4, Example 5 and Example 6 of the present invention.

[0026] Fig.12 for Fig.11 Side view of.

[0027] Fig.13 This is a front view of embodiment 7 of the present invention.

[0028] Fig.14 for Fig.13 Side view of.

[0029] Fig.15 This is the front view of Example 8 of the present invention.

[0030] Fig.16 for Fig.15 Side view of.

[0031] Fig.17 This is a front view of embodiment 9 of the present invention.

[0032] Fig.18 for Fig.17 Side view of.

[0033] Fig.17 This is a front view of embodiment 9 of the present invention.

[0034] Fig.18 for Fig.17 Side view of the.

[0035] Fig.19 This is the front view of Example 10.

[0036] Fig. 20 for Fig.19 Side view of

[0037] Fig.21 for Fig.19 A top view of

[0038] As shown in the figure: 1 aluminum guide rod, 2 explosion welding piece, 3 anode steel claw beam, 4 anode steel claw head, 5 phosphorus iron ring, 6 anode carbon bowl, 7 anode boss, 8 anode carbon block, 9 anode conductive column, 10 anode conductive concave groove, 11 anode conductive beam, 12 reinforced conductive connection vertical plate, 13 reinforced conductive connection horizontal plate, 14 bolt adjustment device, 15 anode conductive boss, 16 adjustment gap, 17 trapezoidal anode conductive concave groove, 18 trapezoidal anode conductive beam, 19 anode conductive concave groove with mortise and tenon connector on the side wall, 20 anode conductive beam with mortise and tenon connector on the side wall, 21 side mortise and tenon hook connector, 22 anode conductive copper rod installation structural hole, 23 anode conductive copper rod, 24 rectangular anode conductive copper plate installation hole, 25 rectangular anode conductive copper plate, 26 trapezoidal anode conductive copper plate installation groove, 27 trapezoidal anode conductive copper plate, 28 bolt installation hole, 29 countersunk bolt.

[0039] Specific implementation method: The technical implementation scheme and technical features of the anode conductive device of an aluminum electrolytic cell described in the present invention can be more clearly understood by reading the drawings in the specification and the description of the specific embodiments.

[0040] Description of the innovative features of the present invention: Figure 1 , Figure 2 and Figure 3 As shown. The anode conductive device of the prior art is composed of an aluminum guide rod (1), an explosive welding sheet (2), an anode steel claw crossbeam (3), and an anode steel claw head (4) which are assembled and constructed by welding. The structure of the anode carbon block of the prior art is that an anode boss (7) is arranged on the upper part of the anode carbon block (8), and an anode carbon bowl (6) is constructed inside the anode boss (7). When assembling the anode conductive device, that is, the anode carbon block steel claw group, the anode steel claw head is inserted from the upper part of the anode carbon block into the anode carbon bowl, and then phosphorus pig iron liquid is cast in the reserved space between the anode steel claw head (4) and the anode carbon bowl by hot casting. After cooling, a phosphorus iron ring (5) is formed as a structural connection component for structural connection and conductive connection between the anode metal conductive device and the anode carbon block.

[0041] Example 1 Figure 4 Figure 5 and Figure 6As shown, the difference between the anode conductive device of a novel aluminum electrolytic cell described in Example 1 of the present invention and the prior art is that the anode metal conductive device of the anode conductive device is welded and assembled by an aluminum guide rod (1), an aluminum-steel composite explosion welding sheet (2), an anode conductive column (9) and an anode conductive crossbeam (11), and the structural shape of the anode carbon block (8) is that two anode conductive concave grooves (10) are constructed and arranged on the top horizontal surface of the anode carbon block (8) along the length direction of the anode carbon block, and three anode conductive bosses (15) are formed between the two anode conductive concave grooves (10) and on the two sides. The anode conductive crossbeam (11) is assembled in the anode conductive concave groove (10) and is used to directly construct the iron-carbon structure connection and the conductive connection. Its function is equivalent to that of the phosphorus iron ring of the anode carbon block steel claw group in the prior art.

[0042] like Figure 4 Figure 5 and Figure 6 As shown, the anode conductive cross beam (11) installed in the anode conductive concave groove (10) on the upper part of the anode carbon block in this embodiment 1 has a rectangular cross-sectional structure. The side surfaces of the two width directions of the anode conductive cross beam (11) are the iron-carbon bonding interface for structural connection and conductive connection with the anode carbon block. When the anode conductive cross beam (11) is processed and manufactured, the surface needs to be mechanically processed to ensure that the iron-carbon bonding interface is tightly attached. When designing the overall structure of the anode conductive device, the conductive properties of metal materials should be fully utilized. Due to the advantages of the anode carbon material, the cross-sectional area of ​​the anode conductive beam (11) should be maximized as much as possible under the technical conditions of ensuring the safety and reliability of the structure; the width of the anode conductive beam (11) should be greater than or greater than the height of the anode conductive beam (11). In order to ensure the firmness and density of the conductive connection function of the microscopic gap of the iron-carbon bonding interface between the anode conductive beam (11) and the anode carbon block, the dimensional deviation of the assembly analysis between the anode conductive beam (11) and the anode conductive concave groove (9) should be less than or equal to the width direction of the anode conductive beam (11), and the thermal expansion dimensional variable value under the technical conditions of the electrolysis heat load condition, that is, the deviation value of the linear expansion dimension of the anode carbon and metal materials in the width structural direction.

[0043] As in Example 1 Figure 4 Figure 5 and Figure 6As shown, in order to ensure the structural connection strength between the anode metal conductive device and the anode carbon block and the manufacturing deviation of the width dimension of the two symmetrically designed anode conductive beams, as well as the assembly deviation of the corresponding anode conductive concave groove, the horizontal gap of the anode conductive beam (11) installed in the anode conductive concave groove (10) on the upper part of the anode carbon block can be adjusted, and the anode conductive column constructed at the bottom of the aluminum guide rod explosion welding piece should also correspond to the configuration of the two anode conductive beams, that is, the anode conductive column is divided into two symmetrical parts for design, and the conductive column is configured on the side of the anode conductive column. The connecting reinforcement vertical plate (12), the conductive connection reinforcement flat plate (13) and the horizontal gap bolt adjustment device (14) are used to adjust the horizontal installation position of the anode cross beam according to the actual situation of on-site installation by using the horizontal gap bolt adjustment device (14) arranged at two different height positions on the anode conductive column, and the bolt adjustment device (14) for adjusting the width of the horizontal gap is used to adjust the clamping force of the two left-right symmetrical anode steel claw cross beams on the anode carbon block boss to ensure a firm conductive connection and a tight iron-carbon interface conductive connection between the anode metal conductive device and the anode carbon block.

[0044] Example 1 Figure 5 As shown, in order to facilitate the adjustment of the horizontal gap between the two symmetrical anode conductive beams (11) and the anode conductive columns (9) by means of a bolt adjustment device (14), a horizontal gap adjustment device (16) can be provided on the anode aluminum guide rod and the aluminum-steel composite explosion welding piece, so as to utilize the physical property of elastic deformation of the metal material and realize the function of adjusting the width of the horizontal size gap by means of the bolt adjustment device (14).

[0045] Example 2 ： like Figure 7 Figure 8 As shown, a novel anode conductive device described in this embodiment 2 is basically the same as that in embodiment 1, and its distinguishing technical feature is that the cross section of the anode conductive beam is a trapezoidal structure with a small upper opening and a large lower end. The cross-sectional projection of the anode conductive concave groove correspondingly arranged on the upper part of the anode carbon block (8) is also a trapezoidal anode conductive concave groove (17) which is arranged correspondingly to the trapezoidal anode conductive beam (18) and penetrates along the longitudinal direction. When assembling the anode metal conductive device and the anode carbon block (8), the trapezoidal anode conductive beam (18) can be pushed and squeezed into the trapezoidal anode conductive concave groove (17) from the end of the anode carbon block (8) so that the iron-carbon bonding surface of the two can be closely fitted and electrically connected; that is, under the hot working conditions of aluminum electrolysis, the thermal expansion pressure in the width direction of the anode conductive beam can be used to make the iron-carbon contact surface of the anode conductive beam (18) and the trapezoidal anode conductive groove (17) on the upper part of the anode carbon block produce a high-density electrically connected.

[0046] like Figure 8 One of the main technical features of the second embodiment is that a trapezoidal anode conductive cross beam (18) is installed in a trapezoidal anode conductive concave groove (17) from the side end of the anode carbon block (8) by extrusion and embedding for structural connection, so there is no need to adjust the centering size of the anode conductive cross beam and the anode conductive concave groove. Therefore, the anode conductive column (9) constructed on the upper part of the trapezoidal anode conductive cross beam (18) is an anode conductive column (9) with a horizontal projection of a rectangle, that is, the adjustment bolt (14) device at the center seam of the two symmetrically designed anode conductive columns in the first embodiment is eliminated.

[0047] Example 3 ： like Fig. 9 Fig.10 As shown, a novel anode conductive device described in this embodiment 3 is basically the same as that in embodiment 2, and its distinguishing technical feature is that the trapezoidal anode conductive beam (18) in embodiment 2 is replaced by a mortise and tenon hook connection member (21) for mortise and tenon connection with the side wall of the concave groove (10) of the anode carbon block is additionally provided on the two side walls of the rectangular anode conductive beam (4), and the cross-sectional projection of the mortise and tenon hook connection member (21) is in the shape of a semicircular or rectangular boss, and the mortise and tenon connection member (21) is arranged horizontally at the same height along the length direction of the anode conductive beam (11); when the anode is assembled, the anode conductive beam (21) with the mortise and tenon connection member can be assembled. 0), from the side end of the anode carbon block (8), the structure is installed in the anode conductive concave groove (19) with a mortise and tenon connection groove on the side wall corresponding to it by means of extrusion, embedding and horizontal displacement. Similar to Example 2, the iron-carbon bonding surface of the anode conductive beam (11) (20) and the anode conductive concave groove (19) can produce a tightly fitting conductive connection; that is, under the hot working conditions of aluminum electrolysis, the thermal expansion pressure of the anode conductive beam (11) in the width direction can be utilized, so that the iron-carbon contact surface of the anode conductive beam (20) and the anode carbon anode conductive groove (19) can produce a high-density conductive connection and a high-strength hook-mortise and tenon connection.

[0048] like Fig. 9 Fig.10As shown, the anode carbon block described in the present embodiment 3 and the embodiment 2 is constructed by extrusion and inlaying, and is configured with an anode conductive beam (20) with a mortise and tenon hook connection member (21) on the side wall, that is, the anode carbon block is hooked and connected to the anode conductive beam with the mortise and tenon connection member from the side end of the anode carbon block (8) by hooking and mortise and tenon connection concave groove (19) to prevent the anode carbon block from being displaced up and down and falling off from the anode conductive beam, so the anode conductive column (9) vertically arranged on the upper part of the anode conductive beam (11) (20) should be designed and constructed as an anode conductive column (9) with a rectangular or circular cross-sectional projection in a top view. That is, the anode conductive metal device does not need to be configured with a horizontal adjustment seam (16).

[0049] Embodiment 4: As described in the above embodiments: the anode conductive column (9) constructed at the bottom of the aluminum guide rod explosion welding piece on the upper part of the anode conductive cross beam (11) of the present invention is not only a load-bearing component of the anode conductive device, but also a conductive component of the anode current. In order to improve its conductive function, the anode conductive column (19) can be constructed not only of low-carbon steel with good conductive properties, but also of copper-steel composite material structure or of homogeneous material. Fig.11 and Fig.12 As shown, the anode conductive column described in this embodiment 4 is constructed using a copper-steel composite structure, and its horizontal cross-section is rectangular. On the rectangular anode conductive column (9) constructed using low-carbon steel as the basic material, one or two composite conductive material installation structural holes (22) are opened that pass through from top to bottom, and then a round copper rod (23) or an anode conductive copper rod (23) with excellent conductive performance and low resistivity is installed in the composite conductive material installation structural hole (22) as a component for improving the conductive performance of the anode conductive column by extrusion and embedding.

[0050] Embodiment 5: As embodiment 4 Fig.11 and Fig.12 As shown: the copper-steel composite structure anode conductive column described in this embodiment 5 is basically the same as that of embodiment 4, and its distinguishing technical feature is that it is constructed on a rectangular anode conductive column (9) constructed with low-carbon steel as the basic material, and the conductive composite conductive material installation hole is changed to a composite conductive material installation threaded hole. When assembling, a threaded copper rod made of copper material with good conductivity and low resistivity is rotated and screwed into two composite conductive material installation threaded holes that pass through from top to bottom.

[0051] As shown in the first, second and third embodiments of the present invention, the anode conductive beam (11) arranged at the bottom of the anode conductive column (9) is a conductive connection component installed in the anode conductive concave groove (10) on both sides of the anode conductive boss (15). Its function is the same as that of the phosphorus iron ring (5) in the prior art, that is, it has the load-bearing function of the connection structure between the carbon anode carbon block and the metal anode conductive device, and also undertakes the conductive transmission function of the anode current. It is a key core component of the anode conductive device of the aluminum electrolytic cell. The technical solution described in the present invention is essentially to solve the structural connection and conductive connection problems between the anode conductive beam (11) and the anode carbon block.

[0052] Example 6: Fig.11 Fig.12 As shown, in order to improve and optimize the strength and conductive function of the connection structure between the anode conductive beam (11) and the anode carbon block (8), in this embodiment, when designing the anode conductive beam, the anode conductive beam (11) is configured with a copper-steel composite material structure, that is, an anode conductive beam (11) described in this embodiment (6), whose basic metal is low-carbon steel, and whose material for optimizing the performance of the conductive material is metal copper or other conductive metal materials with relatively low resistance. The construction method of this embodiment is that a circular anode conductive copper rod installation structural hole (22) is constructed on the anode conductive beam (11) along its length direction. When constructing the copper-steel composite structure anode conductive beam (11), the anode conductive copper rod (23) only needs to be installed in the anode conductive copper rod installation hole (22) of the anode conductive beam (11) constructed of low-carbon steel by extrusion and embedding.

[0053] Example 7: Fig.13 Fig.14 As shown, in order to improve and optimize the conductive performance of the anode conductive beam described in the present invention and optimize the current distribution state of the anode current on the anode carbon block, the anode conductive beam described in this embodiment is characterized in that: on the anode conductive beam (11) with low carbon steel as the base material, a plurality of conductive copper rod horizontal mounting holes (22) perpendicular to the anode conductive beam are constructed along the anode conductive beam. When constructing the copper-steel composite structure anode conductive beam, it is only necessary to install the correspondingly configured circular anode conductive copper rod (23) in the circular anode conductive copper rod horizontal mounting hole (2) in the anode conductive beam (11) by extrusion embedding or screwing a bolt rod.

[0054] Example 8 : like Fig.15 Fig.16As shown: The copper-steel composite structure anode conductive beam (11) described in this embodiment is basically the same as Example 6 and Example 7, and its distinguishing technical features are that the circular anode conductive copper rod mounting hole (22) provided in the anode conductive beam (11) is changed into a rectangular anode conductive copper rod mounting hole (24), and the circular anode conductive copper rod (23) is changed into a rectangular anode conductive copper plate (25). When assembling the structure, an inlay combination configuration method is adopted to form a copper-clad steel composite structure anode conductive beam (11).

[0055] Example 9 : like Fig.17 Fig.18 As shown: The copper-steel composite structure anode conductive beam (11) described in this embodiment is basically the same as Example 7 and Example 8, and its distinguishing technical features are that the anode conductive copper rod mounting hole (22) provided in the anode conductive beam (11) is changed into a trapezoidal anode conductive copper plate mounting groove (26), and the circular or rectangular anode conductive copper plate (26) is changed into a trapezoidal anode conductive copper plate (27), and then an inlaid combination configuration is adopted to form a trapezoidal interlaced copper-steel composite structure anode conductive beam (11).

[0056] Example 10: Fig.19 Fig. 20 and Fig.21 As shown, the copper-steel composite structure anode conductive beam (11) described in this embodiment is characterized in that a plurality of anode conductive copper plate mounting concave grooves (26) are constructed inwardly on the outer side of the anode conductive beam (11), and bolt mounting holes (28) are prepared in the conductive concave grooves (26), and then the anode conductive copper plate (27) is fixedly installed in the conductive copper plate mounting concave groove (26) of the anode conductive beam (11) by countersunk bolts (29), forming a copper-steel composite structure anode conductive beam (11) with a conductive copper plate constructed on the partial outer surface of the anode conductive beam.

Claims

1. An anode metal conductive device for an aluminum electrolytic cell, characterized in that: The anode metal conductive device is composed of an aluminum guide rod, an aluminum-steel composite connecting piece, an anode conductive column plate, and an anode conductive crossbeam. The anode metal conductive crossbeam constructed at the bottom of the anode conductive column plate is a load-bearing connecting component and a conductive connecting component assembled in the anode conductive concave groove on the upper part of the anode carbon block.

2. The anode metal conductive device for aluminum electrolytic cell according to claim 1, characterized in that: The cross-section of the anode conductive beam disposed below the anode conductive column is a rectangular or trapezoidal strip-shaped metal structure, and the upper portion of the anode conductive beam is welded and conductively connected to the anode conductive column.

3. The anode metal conductive device for aluminum electrolytic cell according to claim 1, characterized in that: The anode conductive beam is assembled and installed into the anode conductive concave groove corresponding to the anode conductive beam by an extrusion embedding method, that is, by a cold mechanical assembly process, so as to realize the iron-carbon connection structure and the conductive connection structure of the two.

4. The anode metal conductive device for aluminum electrolytic cell according to claim 1, characterized in that: It uses two left-right symmetrical anode conductive cross beams, which can be assembled with two anode conductive concave grooves on the upper part of the anode carbon block, or two anode conductive cross beams can be assembled in one anode conductive concave groove to construct a conductive connection structure.

5. The anode metal conductive device for aluminum electrolytic cell according to claim 1, characterized in that: When two left-right symmetrical anode conductive beams (11) and two anode conductive concave grooves (10) on the upper part of the anode carbon block are used for structural assembly and configuration, anode conductive columns (9) of the two anode conductive beams (11) are provided with gaps for adjusting the structural dimensions of the two anode conductive beams (11), and a horizontal gap adjustment device for adjusting the clamping force of the anode conductive boss is provided.

6. The anode metal conductive device for aluminum electrolytic cell according to claim 1, characterized in that: When an anode conductive cross beam (11) and an anode conductive concave groove (10) on the upper part of an anode carbon block are assembled and configured, the anode conductive column (9) on the upper part of the anode conductive cross beam (11) is an integral conductive connecting metal component or two symmetrical anode conductive metal components.

7. The anode metal conductive device for aluminum electrolytic cell according to claim 1, characterized in that: The shape of the anode conductive cross beam (11) is a rectangular or trapezoidal cross section, or a long strip structural component with mortise and tenon joints on the side.

8. The anode metal conductive device for aluminum electrolytic cell according to claim 1, characterized in that: The anode conductive cross beam (11) and the anode conductive column (9) of the anode conductive metal structural member are configured with low carbon steel as the material, or with a copper-steel composite metal structure as the structural configuration.

9. The anode metal conductive device for aluminum electrolytic cell according to claim 1, characterized in that: In order to strengthen the connection structural strength of the anode metal conductive device and improve the conductive performance, a conductive connection strengthening vertical plate (12) and a conductive connection strengthening horizontal plate (13) are provided at the connection between the anode conductive column (9) and the anode conductive beam (11).

10. The anode metal conductive device for aluminum electrolytic cell according to claim 1, characterized in that: In order to reduce the adjustment resistance of the horizontal gap between the two symmetrical anode conductive beams (11) and the anode conductive columns (9) and to ensure the strength of their structural connection, a gap adjustment gap (16) is provided between the lower end of the anode aluminum guide rod (1) and the aluminum-steel composite explosion (2).

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