Cathode carbon block and cathode steel bar combined structure of aluminium electrolytic bath

A cathode steel rod and cathode carbon block technology, which is applied in the field of aluminum electrolysis, can solve the problem of high cathode voltage drop, achieve the effect of reducing cathode voltage drop and reducing power consumption

Inactive Publication Date: 2013-08-21
SHENYANG BEIYE METALLURGIGAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems existing in the prior art, the present invention provides a combined structure of cathode carbon block and cathode steel rod of an aluminum electrolytic cell, aiming to solve the problem of e

Method used

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  • Cathode carbon block and cathode steel bar combined structure of aluminium electrolytic bath
  • Cathode carbon block and cathode steel bar combined structure of aluminium electrolytic bath
  • Cathode carbon block and cathode steel bar combined structure of aluminium electrolytic bath

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Embodiment 1

[0033] like figure 1 , figure 2 and image 3 As shown, the combined structure of the aluminum electrolytic cell cathode carbon block and the cathode steel rod that can reduce the cathode voltage drop of the aluminum electrolytic cell of the present invention includes a cathode carbon block 1 and a cathode steel rod 2, and the bottom of the cathode carbon block 1 has a A steel rod groove, a part of the cathode steel rod 2 is in the steel rod groove along the length direction, and a part extends out of the steel rod groove, wherein the part of the cathode steel rod 2 in the steel rod groove is 30-150mm higher than the part extending out of the steel rod groove; The carbon paste 3 is between the cathode steel rod 2 and the steel rod groove, filling the gap between the cathode steel rod 2 and the steel rod groove, each cathode carbon block has 2 steel rod grooves, and 2 pairs of cathode steel Great.

[0034] Grooves 4 with a depth of 1-5 mm are processed on the bottom and sides ...

Embodiment 2

[0037] like figure 1 , figure 2 and Figure 5 As shown, the combined structure of the aluminum electrolytic cell cathode carbon block and the cathode steel rod that can reduce the cathode voltage drop of the aluminum electrolytic cell of the present invention includes a cathode carbon block 1 and a cathode steel rod 2, and the bottom of the cathode carbon block 1 has a A steel rod groove, a part of the cathode steel rod 2 is in the steel rod groove along the length direction, and a part extends out of the steel rod groove, wherein the part of the cathode steel rod 2 in the steel rod groove is 30-150mm higher than the part extending out of the steel rod groove; The carbon paste 3 is between the cathode steel rod 2 and the steel rod groove, filling the gap between the cathode steel rod 2 and the steel rod groove, each cathode carbon block has 2 steel rod grooves, and 2 pairs of cathode steel Rod, when the thickness of the cathode steel rod is less than 70mm, the thickness of ...

Embodiment 3

[0039] like Image 6 , Figure 7 As shown, the combined structure of the aluminum electrolytic cell cathode carbon block and the cathode steel rod that can reduce the cathode voltage drop of the aluminum electrolytic cell of the present invention includes a cathode carbon block 1 and a cathode steel rod 2, and the bottom of the cathode carbon block 1 has a A steel rod groove, a part of the cathode steel rod 2 is in the steel rod groove along the length direction, and a part extends out of the steel rod groove, wherein the part of the cathode steel rod 2 in the steel rod groove is 20-150mm higher than the part extending out of the steel rod groove; The difference between Embodiment 3 and Embodiment 1 and Embodiment 2 is that the cathode steel rod extending into the steel rod groove in this embodiment is relatively higher than the cathode steel rod protruding from the steel rod groove, and the downward extension height is 20- 150mm, the carbon paste 3 is between the cathode ste...

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Abstract

The invention belongs to the technical field of aluminium electrolysis and specifically relates to a cathode carbon block and cathode steel bar combined structure of an aluminium electrolytic bath. The technical scheme provided by the invention comprises a cathode carbon block and a cathode steel bar. The bottom of the cathode carbon block is provided with a steel bar groove. The cathode carbon block and cathode steel bar combined structure is characterized in that part of the cathode steel bar along the length direction is positioned inside the steel bar groove and part of the cathode steel bar extends out from the steel bar groove, wherein the part of the cathode steel bar inside the steel bar groove is 30-200mm higher than the part which extends out from the steel bar groove; especially, grooves of 1-5mm depth are also processed on the bottom surface and side surfaces of the steel bar groove; and grooves are processed in the length direction of the cathode steel bar on the top and side surfaces of the cathode steel bar inside the steel bar groove. According to the technical scheme, voltage drop of the cathode steel bar is reduced, electrolytic bath heat loss caused by increasing of cross section of the cathode steel bar is not increased, contact area between the cathode steel bar and cathode carbon paste and contact area between the surface of the cathode steel bar groove and the carbon paste are increased, and contact voltage drop is effectively decreased.

Description

technical field [0001] The invention belongs to the technical field of aluminum electrolysis, and in particular relates to a combined structure of a cathode carbon block and a cathode steel rod of an aluminum electrolysis cell. Background technique [0002] At present, the power saving problem of industrial aluminum electrolysis is still the most important research topic in aluminum electrolysis production. The power saving of the industrial aluminum electrolytic cell is realized in two ways: one is to realize the power saving of the industrial aluminum electrolytic cell by increasing the current efficiency of the aluminum electrolytic cell, and the other is to realize the power saving of the industrial aluminum electrolytic cell by reducing the average voltage of the aluminum electrolytic cell Electricity savings in aluminum electrolysis production. In the current industrial aluminum electrolysis, when the cell voltage is 4.0 volts, every time the current efficiency increa...

Claims

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Application Information

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IPC IPC(8): C25C3/08
Inventor 冯乃祥
Owner SHENYANG BEIYE METALLURGIGAL TECH CO LTD
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