CN215517667U - Electrolytic bath conductive device - Google Patents

Abstract

The utility model discloses an electrolytic cell conducting device, which comprises an electric guide rod and a steel claw, wherein the steel claw comprises a cross beam and a plurality of conducting claws, the conducting claws are arranged in parallel and are all connected to one side of the cross beam, a supplementing cross beam is arranged on the other side of the cross beam and is connected with the electric guide rod for electrifying, and the supplementing cross beam is provided with a hollow part, so that the conducting path cross-sectional area of the conducting claw close to the electric guide rod is smaller than that of the conducting claw far away from the electric guide rod. The supplementary beam is arranged on the beam of the steel claw, so that the overall thickness of the beam is increased, the hollow part is arranged on the supplementary beam and is positioned above the conductive claw close to the electric guide rod, the hollow part is used for reducing the sectional area of a current path from the electric guide rod to the corresponding conductive claw, so that the current value of the conductive claw is reduced, the aim of balancing the current value received by all the conductive claws is fulfilled, when the current value is closer, the current distribution of each conductive claw of the steel claw tends to be uniform, and the stability of the electrolytic cell is improved.

Description

Electrolytic bath conductive device

Technical Field

The utility model relates to the technical field of aluminum electrolysis, in particular to an electrolytic cell conducting device.

Background

In the aluminum electrolysis industry, an anode group is used as a current leading-in assembly and consists of five parts, namely an aluminum guide rod, steel-aluminum explosive welding, a steel claw, anode carbon block and phosphorus pig iron, wherein the anode steel claw plays roles of conducting electrolysis current and bearing the weight of the carbon block quickly and is an important consumption part for producing electrolytic aluminum, so the conductivity of the anode steel claw has great influence on the production index of the electrolytic aluminum.

The anode steel claw is used as an extremely important and indispensable electric conductor workpiece in the production process of an electrolytic aluminum plant, as for the current anode steel claw, a plurality of claw heads are connected on a beam side by side, an aluminum guide rod is welded at the middle part of the steel claw beam, current flows to the steel claw beam from the aluminum guide rod, and then flows to anode carbon from the steel claw heads, because the distance that the current flowing through the claw heads at the middle part flows is closer than the distance that the current flows through the claw heads at two sides, the resistance at the middle part is small, the resistance at two sides is large, the current at the middle part is larger than the current at two ends, thus the horizontal current distribution in the aluminum electrolytic cell is seriously influenced.

The defect of unbalanced current distribution commonly exists in the existing structure, the current distribution in the steel claw is uneven, and then the current distribution in the anode carbon block can be influenced, and then the current distribution in the electrolytic bath can be influenced, and the liquid level fluctuation can be caused, so that the secondary oxidation of the aluminum liquid is caused.

In summary, how to reduce the non-uniformity of the horizontal current distribution in the aluminum electrolysis cell is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides an electrolytic cell conduction device, which can adjust the current of each steel claw, reduce the current non-uniformity in each steel claw, make the horizontal current distribution uniform, and avoid the secondary oxidation of the aluminum liquid.

In order to achieve the above purpose, the utility model provides the following technical scheme:

the utility model provides an electrolysis trough conductive device, includes electric guide arm and steel claw, the steel claw includes crossbeam and electrically conductive claw, a plurality of electrically conductive claw parallel arrangement, and all connect in one side of crossbeam, the opposite side of crossbeam is equipped with supplyes the crossbeam, just supplyes the crossbeam and connect the electric guide arm is used for the circular telegram, supplyes the crossbeam and be equipped with well kenozooecium to make and be close to the electric guide arm the electrically conductive path cross-sectional area of electrically conductive claw is less than keep away from the electric guide arm the electrically conductive path cross-sectional area of electrically conductive claw.

Preferably, the hollow part is internally provided with a cavity.

Preferably, the distance between the hollow part and the lower end face of the cross beam is 7-15 mm; or the distance between the hollow part and the lower end face of the supplementary beam is 7-15 mm.

Preferably, the length of the hollow part is 320mm, the width of the hollow part is 60mm, and the height of the hollow part is 10 mm.

Preferably, the cross beam is provided with at least one through groove, the through groove penetrates through the width direction of the cross beam to block partial current and increase or decrease the length of a current path, the through groove is located above the conductive claw close to the electric guide rod and on one side close to the electric guide rod, and the through groove is filled with an insulating part.

Preferably, the number of the conductive claws is two, all the conductive claws have the same structure, all the conductive claws are symmetrically arranged about a central axis of the cross beam, and the electric guide rod is collinear with the central axis.

Preferably, all of the hollow portions are disposed symmetrically about the central axis.

Preferably, the number of the conductive claws is 4, and the through grooves are formed above the two conductive claws positioned in the middle.

Preferably, the diameter of the conductive claw is 135-145mm, the distance between the two conductive claws is 290-310mm, and the height of each conductive claw is 275-285 mm.

The supplementing cross beam is arranged on the cross beam of the steel claw, so that the overall thickness of the cross beam is increased, the hollow part is arranged on the supplementing cross beam and is positioned above the conductive claw close to the electric guide rod, the hollow part is used for reducing the sectional area of a current path from the electric guide rod to the corresponding conductive claw, the current value of the conductive claw is reduced, the purpose of balancing the current value received by all the conductive claws is achieved, when the current value is relatively close to each other, the current distribution of all the conductive claws of the steel claw tends to be uniform, and the stability of the electrolytic cell is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a cross-sectional view of an electrolytic cell conducting device provided by the present invention.

In fig. 1, reference numerals include:

1 is an electric guide rod, 2 is a beam, 3 is a supplementary beam, 4 is a hollow part, 5 is a through groove, 6 is a steel claw, and 7 is a conductive claw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the utility model is to provide an electrolytic cell conducting device which can adjust the current of each steel claw, reduce the unevenness of the current in each steel claw, ensure the uniform distribution of horizontal current and avoid the secondary oxidation of aluminum liquid.

Referring to fig. 1, fig. 1 is a cross-sectional view of an electrolytic cell conducting device provided by the present invention.

The application provides an electrolytic cell conductive device, in particular to an anode conductive device of an aluminum electrolytic cell. The electrolytic cell conducting device specifically comprises an electric guide rod 1 and a steel claw 6, wherein the lower end of the electric guide rod 1 is connected with the upper end of the steel claw 6, and the steel claw 6 comprises a cross beam 2 and a plurality of conducting claws 7. A plurality of conductive claws 7 are arranged in parallel and connected to one side of the cross beam 2, please refer to fig. 1, in which the conductive claws 7 are connected to the bottom surface of the cross beam 2.

The other side of the beam 2 is provided with a supplementary beam 3 for increasing the thickness of the beam 2, the supplementary beam 3 is connected with the electric guide rod 1 for electrifying, and it should be noted that both the beam 2 and the supplementary beam 3 have conductivity and can conduct the electric quantity of the electric guide rod 1 to the conductive claw 7.

The supplementary beam 3 is provided with a hollow 4, the hollow 4 being arranged above the conductive claw 7 close to the conductor bar 1, so that the conductive path cross-sectional area of the conductive claw 7 close to the conductor bar 1 is smaller than the conductive path cross-sectional area of the conductive claw 7 far from the conductor bar 1.

Referring to fig. 1, an electrical lead 1 provided in the present application is specifically an aluminum lead. The cross section is a section formed by cutting in the horizontal direction in fig. 1, and the cross sectional area of the conductive path is a cross sectional area of a path of current flowing from the conductor bar 1 to each conductive claw 7 through the beam 2 and the supplementary beam 3.

It can be known from the resistance expression that when the current path area S increases, the resistance R of the steel claw decreases, so that the current of the two middle conductive claws 7 increases, and conversely, the current decreases, so that it can be known that the current path area S is in positive correlation with the current magnitude.

In the embodiment, 4 conductive claws 7 are introduced, in fig. 1, two conductive claws 7 located in the middle are closer to the electric guide rod 1, and two conductive claws 7 located on both sides are farther from the electric guide rod, compared with the path for transmitting power from the electric guide rod 1, the current path of two conductive claws 7 located on both sides is relatively longer than that of two conductive claws 7 located in the middle in consideration of the current transmission manner, in this case, the current flowing through each conductive claw 7 is not uniform, the current distribution of the anode is affected, and the current of the conductive claws 7 located on both sides may be larger than that of the conductive claw 7 located in the middle. Therefore, in the present application, the hollow portion 4 is provided in the current path of the conductive claw 7 located in the middle, and the available width of the current path is reduced, that is, the current value of the current path can be reduced, so that the current values of the two conductive claws 7 located in the middle and the two conductive claws 7 located on both sides tend to be close to each other.

Alternatively, when the number of conductive claws 7 is other, it is arranged in a similar manner, i.e. the complementary beam 3 above the conductive claw 7 near the middle is provided with a hollow 4, so that the cross-sectional area of the conductive path of the conductive claw 7 near the conductor bar 1 is smaller than the cross-sectional area of the conductive path of the conductive claw 7 far from the conductor bar 1. When at least 3 conductive claws 7 are arranged on the left side of the electric guide rod 1 in fig. 1, a hollow part 4 needs to be arranged above at least two conductive claws 7 relatively close to the electric guide rod 1, and the size of the hollow part 4 can be different, so that the hollow part 4 with different far and near positions can be adjusted according to different sizes.

This application is through setting up on crossbeam 2 at steel claw 6 and supplementing crossbeam 3, increase the whole thickness of crossbeam 3, and set up the well kenozooecium on supplementing crossbeam 3, well kenozooecium is located the electrically conductive claw 7 top that is close to electric guide rod 1, be used for reducing by electric guide rod 1 to the sectional area of the electric current route of the electrically conductive claw 7 that corresponds, thereby reduce to the current value of this electrically conductive claw 7, reach the purpose that all electrically conductive claws 7 of balance received the current value, when the current value is more close (resistance is the same or very close), each electrically conductive claw 7 current distribution of steel claw 6 will be towards evenly, thereby improve the stability of electrolysis trough.

On the basis of the above embodiment, the dimension of the hollow portion 4 in the longitudinal direction of the beam 2 is larger than the dimension of the conductive claw 7 in the longitudinal direction of the beam 2.

It should be noted that, since the beam 2 and the complementary beam 3 are both continuous along the length direction thereof, after the hollow portion 4 is provided, the current can still flow along the transverse direction of the complementary beam 3 and reach the position of the conductive claw 7. Therefore, in order to reduce the current value of the corresponding conductive claws 7 to a large extent, the dimension of the hollow part 4 in the longitudinal direction of the beam 2 can be adjusted to be larger than the dimension of the corresponding conductive claws 7 in the longitudinal direction of the beam 2, so that the cross-sectional area of the corresponding current is smaller, the distance by which the current bypasses is longer, and the current value is reduced.

In addition to the above-described embodiments, the hollow portion 4 has a displacement in a direction away from the conductive claw 7 in the lateral direction with respect to the conductive claw 7.

The effect of the dislocation is to make the current flowing to the conductive claws 7 corresponding to the hollow part 4 smaller, thereby conveniently realizing the control effect on the current value.

In the present application, the hollow portion 4 is a hollow cavity, and it is not necessary to provide another structure.

In the case of the above-described embodiment, the distance of the hollow 4 from the lower end face of the cross beam 2 is 7 to 15mm, preferably 10 mm; alternatively, the distance of the hollow 4 from the lower end face of the complementary beam 3 is 7-15mm, preferably 10 mm.

Alternatively, the length of the hollow portion 4 is 320mm, the width of the hollow portion 4 is 60mm, and the height of the hollow portion 4 is 10mm, that is, the hollow portion 4 has a rectangular structure of 320mm × 60mm × 10 mm.

Alternatively, the hollow portion 4 is preferably formed to penetrate in the width direction of the cross member 2.

On the basis of the above embodiment, the cross beam 2 is provided with at least one through groove 5, the through groove 5 penetrates through the width direction of the cross beam 2 to block partial current and increase or decrease the current path length, the through groove 5 is located above the conductive claw 7 close to the electric guide rod 1 and on one side close to the electric guide rod 1, and the through groove 5 is filled with an insulating member.

Referring to fig. 1, the cross beam 2 is provided with at least two through grooves 5, which are respectively located at two sides of the electric guide rod 1, near the electric guide rod 1, and at the bottom of the cross beam 2, and the through grooves 5 are arranged in the current flowing direction, and are internally provided with insulating members, which cannot support the passing of current, so that the through grooves 5 can bypass the positions of the through grooves 5 in the current flowing process, and the purpose of increasing the length of a current path is achieved, thereby reducing the current value.

It should be noted that the insulator can be used for blocking current from directly flowing to the conductive claw 7 which is close to the conductive rod 1, so that the current needs to go forward in a detour manner, the purpose of changing the current direction is realized, the currents of all parts can be approximately equal, the current distribution tends to be uniform, the voltage drop is reduced, the consumption of carbon blocks connected with the steel claw 6 is reduced, and the stability of the electrolytic cell is improved.

On the basis of the above embodiment, the number of the conductive claws 7 is even, all the conductive claws 7 have the same structure, all the conductive claws 7 are symmetrically arranged about the central axis of the beam 2, and the electric guide rod 1 is collinear with the central axis.

In the actual structural design, the number of the conductive claws 7 on the steel claw 6 is usually a double number and is symmetrically distributed about the electric guide rod 1, and taking 4 conductive claws 7 as an example, two conductive claws are usually symmetrically arranged about the electric guide rod 1. The symmetry sets up and keeps stable in two directions more easily, avoids appearing the asymmetric condition in electric guide rod 1 both sides.

Alternatively, all the conductive claws 7 are uniformly distributed in the length direction of the cross beam 2.

On the basis of the above embodiment, the number of the conductive claws 7 is 4, and the through grooves 5 are provided above the two conductive claws 7 located at the middle position.

Optionally, when the number of the conductive claws 7 is more than four, except that the through groove 5 is arranged at the position of the cross beam 2 connected with the two conductive claws 7 positioned in the middle, the through grooves 5 can be arranged at the positions of the cross beams 2 connected with the other conductive claws 7, the conductive claws 7 positioned at the two ends can be not arranged, are already positioned at the end part, are the longest circulation passage, and do not need to be provided with the through grooves 5.

Optionally, the through groove 5 in the present application may be a rectangular groove body, or a groove body with another structure or shape.

On the basis of the above embodiment, the diameter of the conductive claw 7 is 135-145mm, the distance between the two conductive claws 7 is 290-310mm, and the height of each conductive claw 7 is 275-285 mm.

Alternatively, the size of the conductive claw 7 may be adjusted according to the actual design size, which is just a common embodiment.

The application provides an optimize 6 inner structure of steel claw among the electrolysis trough electric installation, set up and supply crossbeam 3 to set up well kenozooecium 4 in supplying crossbeam 3, when the crossbeam size increases, will reduce the pressure drop of steel claw 6, can also have certain effect to the reduction of the anode carbon piece pressure drop of its connection. The resistance value of each steel claw 6 is adjusted by increasing the thickness of the cross beam and then hollowing the area of the cross beam part, and the current distribution in the anode is improved.

In addition, an insulated through groove 5 is arranged between the steel claws 6 at the middle part for blocking current from directly flowing to the corresponding conductive claw 7 and changing the flowing direction of the current, so that the flowing current of the conductive claws is approximately equal, the current distribution of the anode conductive device is more uniform, the voltage drop is reduced, and the stability of the electrolytic cell is further improved.

Both consider the voltage drop problem in this application, also considered the problem of uniform current, this scheme's focus has all made the solution to these two main problems.

Except for the main structure and connection relationship of the electrolytic cell conducting device provided in the above embodiments, the structure of the other parts is referred to the prior art, and will not be described herein again.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The electrolytic cell conducting device provided by the utility model is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (9)

1. The utility model provides an electrolysis trough conductive device, includes electric guide arm (1) and steel claw (6), its characterized in that, steel claw (6) include crossbeam (2) and electrically conductive claw (7), a plurality of electrically conductive claw (7) parallel arrangement, and all connect in one side of crossbeam (2), the opposite side of crossbeam (2) is equipped with supplyes crossbeam (3), just supplyes crossbeam (3) are connected electric guide arm (1) is used for the circular telegram, supplyes crossbeam (3) are equipped with well kenozooecium (4), so that be close to electric guide arm (1) the electrically conductive cross-sectional area of the circuit of electrically conductive claw (7) is less than keep away from electric guide arm (1) the electrically conductive cross-sectional area of the circuit of electrically conductive claw (7).

2. The electrolyzer conducting device according to claim 1 characterized in that the hollow (4) is internally hollow.

3. The electrolyzer conducting device according to claim 1 characterized in that the hollow (4) is at a distance of 7-15mm from the lower end face of the beam (2); or the distance between the hollow part (4) and the lower end face of the supplementary beam (3) is 7-15 mm.

4. The electrolyzer conducting device according to claim 1 characterized in that the length of the hollow (4) is 320mm, the width of the hollow (4) is 60mm and the height of the hollow (4) is 10 mm.

5. A cell conducting device according to any one of claims 1 to 4, characterized in that the cross beam (2) is provided with at least one through slot (5), the through slot (5) penetrates through the width direction of the cross beam (2) to block part of the current and increase or decrease the current path length, the through slot (5) is positioned above the conducting claws (7) close to the electric guide rod (1) and close to one side of the electric guide rod (1), and the through slot (5) is filled with an insulating piece.

6. The electrolyzer conducting device according to claim 5 characterized in that the number of the conducting claws (7) is even, all the conducting claws (7) have the same structure, all the conducting claws (7) are symmetrically arranged about the central axis of the beam (2), and the electric guide rod (1) is collinear with the central axis.

7. Electrolysis cell conducting device according to claim 6, wherein all said hollows (4) are arranged symmetrically with respect to said central axis.

8. An electrolysis cell conducting device according to claim 5, characterized in that the number of the conducting claws (7) is 4, and the through groove (5) is arranged above the two conducting claws (7) at the middle position.

9. The electrolytic cell conducting device according to claim 5, characterized in that the diameter of the conducting claw (7) is 135-145mm, the distance between the two conducting claws (7) is 290-310mm, and the height of each conducting claw (7) is 275-285 mm.

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