Electrolytic aluminum cathode carbon block steel bar assembling device

Abstract

The utility model relates to the technical field of electrolytic aluminum, in particular to an electrolytic aluminum cathode carbon block and steel bar assembling device which comprises a cathode carbon block and a cathode steel bar, the cathode carbon block and the cathode steel bar are connected through a connecting object, and the connecting object comprises first carbon paste located in the middle of the cathode carbon block and second carbon paste located at the two ends of the cathode carbon block. The first carbon paste is connected with the second carbon paste, and the resistance of the second carbon paste is greater than that of the first carbon paste; the connecting surface of the first carbon paste and the second carbon paste is an inclined surface; the connecting surface of the first carbon paste and the second carbon paste is an inclined surface, so that the resistance is gradually increased from the middle to the two ends; according to the utility model, the horizontal current is reduced under the condition that the shape of the cathode steel bar is not changed.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic aluminum, in particular to an assembly device for steel bars of an electrolytic aluminum cathode carbon block. Background Art

[0002] The patent with the application number 202310046062.5 discloses a cathode assembly structure for balancing the flow rate of aluminum liquid in an aluminum electrolysis cell, which includes a cathode carbon block with a steel bar groove opened along the length direction inside. Two cathode steel bars are respectively arranged opposite to each other at a predetermined distance interval in the steel bar groove, and the ends extend out of the cathode carbon block. The longitudinal sections of the two cathode steel bars are of variable cross-sections and are different in size. The front section of the cathode steel bar is rectangular, the middle section is trapezoidal, and the part extending out of the cathode carbon block at the end is rectangular; a steel bar paste is arranged between the cathode steel bar and the cathode carbon block, an insulator one is arranged near the end of the cathode carbon block in the middle section, and insulators two and three are arranged on both sides of the middle section near the power output end of the steel bar; this patent reduces the horizontal current significantly by changing the shape of the steel bar and adding insulators near the power output end of the steel bar; how to reduce the horizontal current without changing the shape of the steel bar is a problem to be solved currently. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide an assembly device for steel bars of an electrolytic aluminum cathode carbon block to solve the problem in the above-mentioned prior art of how to reduce the horizontal current without changing the shape of the steel bar.

[0004] To achieve the above purpose, the utility model provides an assembly device for steel bars of an electrolytic aluminum cathode carbon block, which includes a cathode carbon block and cathode steel bars. The cathode carbon block and the cathode steel bars are connected by a connecting object. The connecting object includes a first carbon paste located in the middle of the cathode carbon block and second carbon pastes located at both ends of the cathode carbon block. The first carbon paste and the second carbon pastes are connected, and the resistance of the second carbon paste is greater than that of the first carbon paste.

[0005] Further, the joint surface of the first carbon paste and the second carbon paste is an inclined surface; the joint surface of the first carbon paste and the second carbon paste is set as an inclined surface to make the resistance gradually increase from the middle to both ends.

[0006] Further, the cathode steel bars include a first steel bar and a second steel bar. The first steel bar and the second steel bar are arranged opposite to each other along the length direction of the cathode carbon block. There is a gap between the first steel bar and the second steel bar, and the ends of the first steel bar and the second steel bar away from each other extend to the outside of the cathode carbon block.

[0007] Further, the part of the cathode steel bar in contact with the end of the cathode carbon block is coated with an insulating coating.

[0008] The utility model realizes the reduction of the horizontal current without changing the shape of the cathode steel bar by arranging a first carbon paste in the middle of the cathode carbon block and second carbon pastes at both ends of the cathode carbon block, and the resistance of the second carbon paste is greater than that of the first carbon paste. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings forming a part of this application are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model.

[0010] Figure 1 It is a top view structural schematic diagram of the embodiment;

[0011] Figure 2 It is a left view structural schematic diagram of the embodiment;

[0012] Figure 3 It is a sectional structural schematic diagram of A-A in the embodiment;

[0013] Figure 4 It is a sectional structural schematic diagram of B-B in the embodiment;

[0014] Figure 5 It is a schematic diagram of the insulating coating in the embodiment;

[0015] In the figure: 1, cathode carbon block; 2, cathode steel bar; 3, first carbon paste; 4, second carbon paste; 5, insulating coating. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0017] As Figures 1 to 5 shown, according to an embodiment of the utility model, an electrolytic aluminum cathode carbon block steel bar assembly device is provided, including a cathode carbon block 1 and a cathode steel bar 2. The cathode steel bar 2 is arranged in a steel bar groove on the cathode carbon block 1, and the cathode carbon block 1 and the cathode steel bar 2 are connected by a connecting material. The connecting material includes a first carbon paste 3 located in the middle of the cathode carbon block 1 and second carbon pastes 4 located at both ends of the cathode carbon block 1. The first carbon paste 3 and the second carbon pastes 4 are in contact with each other, and the contact surface of the first carbon paste 3 and the second carbon pastes 4 is an inclined surface. The resistance of the second carbon paste 4 is greater than that of the first carbon paste 3. The contact surface of the first carbon paste 3 and the second carbon pastes 4 is set as an inclined surface to make the resistance gradually increase from the middle to both ends.

[0018] The cathode steel bar 2 includes a first steel bar and a second steel bar. The first steel bar and the second steel bar are arranged opposite to each other along the length direction of the cathode carbon block 1, and there is a gap between the first steel bar and the second steel bar. The ends of the first steel bar and the second steel bar away from each other extend to the outside of the cathode carbon block 1.

[0019] The part of the cathode steel bar 2 that is connected to the end of the cathode carbon block 1 is coated with an insulating coating 5.

[0020] In this embodiment, by arranging a first carbon paste 3 in the middle of the cathode carbon block 1 and arranging a second carbon paste 4 at both ends of the cathode carbon block 1, and the resistance of the second carbon paste 4 is greater than that of the first carbon paste 3, the horizontal current is reduced without changing the shape of the cathode steel bar 2.

[0021] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An electrolytic aluminum cathode carbon block and steel rod assembly device, comprising a cathode carbon block (1) and a cathode steel rod (2), wherein the cathode carbon block (1) and the cathode steel rod (2) are connected by a connector, characterized in that: The connecting object comprises a first carbon paste (3) located in the middle of the cathode carbon block (1) and a second carbon paste (4) located at both ends of the cathode carbon block (1), the first carbon paste (3) and the second carbon paste (4) are connected, and the resistance of the second carbon paste (4) is greater than the resistance of the first carbon paste (3).

2. The electrolytic aluminum cathode carbon block steel rod assembly device according to claim 1, characterized in that: The interface between the first carbon paste (3) and the second carbon paste (4) is an inclined surface.

3. The electrolytic aluminum cathode carbon block steel rod assembly device according to claim 1, characterized in that: The cathode steel rod (2) comprises a first steel rod and a second steel rod, wherein the first steel rod and the second steel rod are arranged opposite to each other along the length direction of the cathode carbon block (1), a gap is provided between the first steel rod and the second steel rod, and ends of the first steel rod and the second steel rod that are away from each other extend to the outside of the cathode carbon block (1).

4. The electrolytic aluminum cathode carbon block steel rod assembly device as claimed in claim 3, characterized in that: The portion of the cathode steel rod (2) that is in contact with the end of the cathode carbon block (1) is coated with an insulating coating (5).

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