Anode steel claw

Abstract

The present invention discloses an anode steel claw, which includes a vertically arranged anode guide rod, an upper crossbeam, a lower crossbeam and a steel claw leg. Advantages: By shortening the length of the upper crossbeam and symmetrically arranging a lower crossbeam at both ends of the upper crossbeam, the current flowing to each steel claw leg is the same, and the effect of equal current of the steel claw is achieved; a through hole is arranged in the middle of the steel claw leg, which can increase the heat dissipation area of ​​the steel claw leg on the one hand, so that the heat generated by the steel claw leg due to the passage of current can be easily discharged, thereby reducing the resistivity and improving the current transmission efficiency; on the other hand, when the electrolyte liquid flushes to the steel claw leg, it can directly pass through the through hole, play a diversion role, and at the same time reduce the impact of the electrolyte liquid on the steel claw, and play a protective role on the steel claw leg.

Description

Technical field:

[0001] The invention relates to the technical field of anode steel claws, in particular to an anode steel claw. Background technology:

[0002] In the production of electrolytic aluminum, the anode steel claw is an important link connecting the anode carbon block. The rationality of the steel claw structure determines the uniformity of current distribution. At present, the steel claws used in the industry are usually cast steel claws, and their structure is as follows: Figure 1 As shown, it includes an anode guide rod, an upper crossbeam fixed at the bottom of the anode guide rod, and four steel claw legs fixed at the bottom of the upper crossbeam. The current is transmitted to the crossbeam through the guide rod and then distributed to the four steel claw heads. In actual use, there are the following problems: 1. The resistivity is related to the length of the conductor, resulting in a small current in the two steel claw legs at the two ends far from the anode guide rod, while a large current in the two steel claw legs close to the anode guide rod, making the current distribution of the anode steel claw uneven; 2. In the production process, the conductivity of the steel claw decreases with the increase of temperature. The traditional cylindrical steel claw legs are an integrated structure with limited heat dissipation area, resulting in high temperature of the anode steel claw and poor current transmission efficiency; 3. Under the condition of tank fluctuation, the electrolyte liquid will inevitably form a wave crest and wash the middle part of the steel claw leg, which will cause the middle part of the steel claw to become thinner in the long run, shorten the service life of the steel claw, and affect the normal production of electrolysis; 4. Since the anode steel claw crossbeam and the steel claw leg are an integrated structure, when the steel claw leg is severely worn and needs to be replaced, it needs to be replaced completely, resulting in increased maintenance costs and waste of materials. Summary of the invention:

[0003] The object of the present invention is to provide an anode steel claw with uniform current distribution.

[0004] The present invention is implemented by the following technical scheme: an anode steel claw, which includes a vertically arranged anode guide rod, and also includes an upper crossbeam, a lower crossbeam and a steel claw leg. The upper crossbeam is horizontally arranged at the bottom end of the anode guide rod, and the middle part of the top end of the upper crossbeam is fixed to the bottom end of the anode guide rod. A lower crossbeam is respectively arranged at the bottom of both ends of the upper crossbeam, and the two lower crossbeams are symmetrically arranged about the anode guide rod. The lower crossbeam is arranged parallel to the upper crossbeam, and the middle part of the top end of the lower crossbeam is welded and fixed to the bottom of the upper crossbeam through a surfacing welding meat section; a vertically arranged steel claw leg is respectively welded and fixed to the bottom of both ends of each of the lower crossbeams, and the two steel claw legs on the same lower crossbeam are symmetrically arranged about the surfacing welding meat section at its top.

[0005] Furthermore, a protrusion protruding outward is integrally formed on the middle side wall of the steel claw leg.

[0006] Furthermore, a through hole is horizontally opened in the middle of the side wall of the steel claw leg and penetrates the corresponding steel claw leg, and the axis of the through hole is perpendicular to the upper crossbeam.

[0007] Furthermore, the transverse cross-sectional areas of various parts of the steel claw leg are the same.

[0008] Furthermore, the steel claw leg includes an upper fixed section, a middle wear section and a lower connecting section which are arranged in sequence from top to bottom, the upper fixed section is welded and fixed to the corresponding lower cross beam, the middle wear section and the lower connecting section are integrally formed, and the top end of the middle wear section is welded and fixed to the bottom end of the upper fixed section.

[0009] Furthermore, the steel claw leg includes an upper fixed section, a middle wear section and a lower connecting section which are arranged in sequence from top to bottom, the upper fixed section is welded and fixed to the corresponding lower cross beam, the middle wear section and the lower connecting section are integrally formed, the top end of the middle wear section is welded and fixed to the bottom end of the upper fixed section; the protrusion is arranged on the middle wear section.

[0010] The advantages of the present invention are as follows: by shortening the length of the upper crossbeam and symmetrically arranging a lower crossbeam at both ends of the upper crossbeam, the current flowing to each steel claw leg is the same, thereby achieving the effect of current equalization of the steel claws; at the same time, the original crossbeam is changed into an upper crossbeam and a lower crossbeam, and the overall height of the crossbeam is increased, so that the heat dissipation area of ​​the lower crossbeam with high current intensity is increased, and the thermal expansion amount of the upper crossbeam due to heat is reduced, and the inward bending deformation amount of the end steel claw legs is reduced; a through hole is arranged in the middle of the steel claw leg, on the one hand, the heat dissipation area of ​​the steel claw leg can be increased, so that the heat generated by the steel claw leg due to the passage of current can be easily discharged, thereby reducing the resistivity and improving the current transmission efficiency; on the other hand, when the electrolyte liquid flushes to the steel claw leg, it can directly pass through the through hole, play a diversion role, and at the same time reduce the impact of the electrolyte liquid on the steel claw, protect the steel claw leg, and extend the service life of the steel claw leg; in addition, it can also reduce the entry of iron elements into the original aluminum liquid, reducing the impact on the quality of the original aluminum. Description of the drawings:

[0011] Figure 1 It is a schematic diagram of the existing structure of the background technology.

[0012] Figure 2 This is a schematic diagram of the overall structure of Example 1.

[0013] Figure 3 This is a schematic diagram of the overall structure of Example 2.

[0014] Figure 4 This is a schematic diagram of the overall structure of Example 3.

[0015] Figure 5 This is a schematic diagram of the overall structure of Example 4.

[0016] Anode guide rod 1, upper crossbeam 2, lower crossbeam 3, steel claw leg 4, upper fixed section 4.1, middle wear section 4.2, lower connecting section 4.3, convex block 4.4, through hole 4.5, surfacing weld meat section 5. Specific implementation method:

[0017] In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0018] Example 1: Figure 2 As shown, an anode steel claw comprises a vertically arranged anode guide rod 1, and also comprises an upper crossbeam 2, a lower crossbeam 3 and a steel claw leg 4. The upper crossbeam 2 is horizontally arranged at the bottom end of the anode guide rod 1, and the middle part of the top end of the upper crossbeam 2 is fixed to the bottom end of the anode guide rod 1. A lower crossbeam 3 is respectively arranged at the bottom of both ends of the upper crossbeam 2. The two lower crossbeams 3 are symmetrically arranged about the anode guide rod 1, and the lower crossbeam 3 is arranged parallel to the upper crossbeam 2. The middle part of the top end of the lower crossbeam 3 is welded and fixed to the bottom of the upper crossbeam 2 by a surfacing welding meat segment 5; the symmetrical arrangement can ensure that the current from the upper crossbeam 2 to the two lower crossbeams 3 is the same; at each lower crossbeam A vertical steel claw leg 4 is welded and fixed at the bottom of both ends of the beam 3. The two steel claw legs 4 on the same lower beam 3 are symmetrically arranged about the cladding welding meat section 5 at the top thereof, which can further equalize the current on the lower beam 3 and ensure that the current of the four steel claw legs 4 is the same; the lower beam 3 and the upper beam 2 are welded by full-section welding to form the cladding welding meat section 5; the steel claw leg 4 and the lower beam 3 are also welded by full-section welding. Full-section welding can make the connection between the steel claw leg 4 and the lower beam 3, and between the lower beam 3 and the upper beam 2 tighter, which can greatly reduce the gap at the connection and achieve the effect of reducing the pressure drop at the weld;

[0019] By shortening the length of the upper crossbeam 2 and symmetrically setting a lower crossbeam 3 at both ends of the upper crossbeam 2, the current flowing to each steel claw leg 4 is the same, and the effect of equal current of the steel claw is achieved; at the same time, the original crossbeam is changed to the upper crossbeam 2 and the lower crossbeam 3, and the overall height of the crossbeam is increased, so that the heat dissipation area of ​​the crossbeam is increased, and the thermal expansion of the upper crossbeam 2 due to heat is reduced, and the inward bending deformation of the end steel claw leg 4 is reduced;

[0020] Example 2: Figure 3As shown, its overall structure is the same as that of Example 1, except that the steel claw leg 4 includes an upper fixed section 4.1, a middle wear section 4.2 and a lower connecting section 4.3 which are arranged in sequence from top to bottom, the upper fixed section 4.1 is welded and fixed to the corresponding lower cross beam 3, the middle wear section 4.2 and the lower connecting section 4.3 are integrally formed, and the top end of the middle wear section 4.2 is welded and fixed to the bottom end of the upper fixed section 4.1; since the upper fixed section 4.1 and the middle wear section 4.2 are connected and fixed by welding, when the middle wear section 4.2 is severely worn, it can be directly cut open by the weld between its top end and the bottom end of the upper fixed section 4.1, and the new middle wear section 4.2 and the lower connecting section 4.3 can be replaced, and then re-welded, thereby reducing the difficulty and cost of maintenance.

[0021] Example 3: Figure 4 As shown, its overall structure is the same as that of embodiment 1, except that a protruding bump 4.4 arranged outward is integrally formed on the middle side wall of the steel claw leg 4, and the middle easily eroded part is configured from a cylindrical shape to a spherical shape to enhance its wear resistance; the steel claw leg 4 includes an upper fixed section 4.1, a middle wear section 4.2 and a lower connecting section 4.3 arranged in sequence from top to bottom, the upper fixed section 4.1 is welded and fixed to the corresponding lower cross beam 3, and the middle wear section 4.2 and the lower connecting section 4.3 are integrally formed. The top of the middle wear section 4.2 is welded and fixed to the bottom of the upper fixed section 4.1; the convex block 4.4 is arranged on the middle wear section 4.2; since the upper fixed section 4.1 and the middle wear section 4.2 are connected and fixed by welding, when the middle wear section 4.2 is seriously worn, it can be directly cut open by the weld between its top and the bottom of the upper fixed section 4.1, and a new middle wear section 4.2 and a lower connecting section 4.3 can be replaced and re-welded, thereby reducing the difficulty and cost of maintenance.

[0022] Example 4: Figure 5 As shown, its overall structure is the same as that of implementation 3, except that a through hole 4.5 is horizontally opened in the middle of the side wall of the steel claw leg 4 to penetrate the corresponding steel claw leg 4, and the axis of the through hole 4.5 is perpendicular to the upper crossbeam 2; the transverse cross-sectional areas of various parts of the steel claw leg 4 are the same; by setting the through hole 4.5, on the one hand, the heat dissipation area of ​​the steel claw leg 4 can be increased, so that the heat generated by the steel claw leg 4 due to the passage of current can be easily discharged, thereby reducing the resistivity and improving the current transmission efficiency; on the other hand, when the electrolyte liquid flushes to the steel claw leg 4, it can directly pass through the through hole 4.5 to play a shunt role, while reducing the impact of the electrolyte liquid on the steel claw leg 4, protecting the steel claw leg 4, and extending the service life of the steel claw leg 4; in addition, it can also reduce the entry of iron elements into the original aluminum liquid and reduce the impact on the quality of the original aluminum.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anode steel claw, comprising a vertically arranged anode guide rod, characterized in that: It also includes an upper crossbeam, a lower crossbeam and a steel claw leg. The upper crossbeam is horizontally arranged at the bottom end of the anode guide rod, the middle part of the top end of the upper crossbeam is fixed to the bottom end of the anode guide rod, and a lower crossbeam is respectively arranged at the bottom of both ends of the upper crossbeam. The two lower crossbeams are symmetrically arranged about the anode guide rod, the lower crossbeam is arranged parallel to the upper crossbeam, and the middle part of the top end of the lower crossbeam is welded and fixed to the bottom of the upper crossbeam through a surfacing welding meat segment; a vertically arranged steel claw leg is respectively welded and fixed to the bottom of both ends of each of the lower crossbeams, and the two steel claw legs on the same lower crossbeam are symmetrically arranged about the surfacing welding meat segment at its top; A convex block protruding outward is integrally formed on the middle side wall of the steel claw leg. A through hole penetrating the corresponding steel claw leg is horizontally opened in the middle of the side wall of the steel claw leg, and the axis of the through hole is perpendicular to the upper crossbeam.

2. The anode steel claw according to claim 1, characterized in that: The transverse cross-sectional areas of various parts of the steel claw legs are the same.

3. An anode steel claw according to any one of claims 1 to 2, characterized in that: The steel claw leg includes an upper fixed section, a middle wear section and a lower connecting section which are arranged in sequence from top to bottom, the upper fixed section is welded and fixed to the corresponding lower cross beam, the middle wear section and the lower connecting section are integrally formed, the top end of the middle wear section is welded and fixed to the bottom end of the upper fixed section; the protrusion is arranged on the middle wear section.

Images