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Protecting jacket of self-calcining self-shaping anode and its preparing process

An anode steel claw and self-forming technology, applied in the field of aluminum metallurgy equipment, can solve the problems of failure to protect the anode steel claw, softening and collapse of the protective sleeve, etc., achieving significant economic benefits, solving the effect of softening and collapsing, and stabilizing the quality.

Inactive Publication Date: 2003-02-12
青铜峡铝电有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

During the actual use of this technology, due to the high temperature in the electrolytic cell and the erosion of the electrolyte, the protective sleeve becomes soft and collapses in about a week, and cannot protect the anode steel claws.

Method used

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  • Protecting jacket of self-calcining self-shaping anode and its preparing process
  • Protecting jacket of self-calcining self-shaping anode and its preparing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Such as figure 1 As shown, a cylindrical protective jacket 4 made of aluminum plate is placed on each steel claw 2 of the baked anode carbon block 5. The aluminum plate is made of 0.5-1mm aluminum material, and the distance between the protective jacket and the steel claw is optimal. 3 cm. The protective material 3 is filled between the protective jacket and the steel claw, and the protective material is mixed with 50% carbon aggregate, 30% asphalt and 20% industrial graphite powder. Among them, the carbon aggregate is calcined petroleum coke or electric section coal, whose particle size is less than 5mm, and the asphalt is preferably asphalt powder, whose particle size is less than 1mm. After doing the above work, put the anode including the anode guide rod 1, steel claw, and anode carbon block directly into the electrolytic cell for use. As the temperature of the protective material in the electrolytic cell rises, the protective material is softened and pitch Invasi...

Embodiment 2

[0015] Such as figure 1 As shown, a cylindrical protective jacket 4 made of aluminum plate is placed on each steel claw 2 of the baked anode carbon block 5. The aluminum plate is made of 0.5-1mm aluminum material, and the distance between the protective jacket and the steel claw is optimal. 3 cm. The protective material 3 is filled between the protective jacket and the steel claw, and the protective material is mixed with 50% carbon aggregate, 30% asphalt and 20% industrial graphite powder. Among them, the carbon aggregate is the waste raw material in the prebaked anode production process, which is crushed to a particle size of less than 5mm; the asphalt is preferably asphalt powder, and its particle size is less than 1mm. After doing the above work, put the anode including the anode guide rod 1, steel claw, and anode carbon block directly into the electrolytic cell for use. As the temperature of the protective material in the electrolytic cell rises, the protective material ...

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Abstract

A process for preparing the protecting jacket of steel jaw as anode includes such steps as preparing protecting material from C, asphalt and industrial graphite through mixing, sleeving a cover on the steel jaw, filling the protecting material in the gap between the cover and the steel jaw, and self calcining in an electrolyzer. It can elongate the service life of anode, and stabilize the quality of raw aluminium.

Description

technical field [0001] The invention relates to the technical field of aluminum metallurgical equipment, in particular to a self-baking and self-forming anode steel claw protective sleeve and a preparation method thereof. Background technique [0002] In the existing aluminum electrolysis, the anode mainly plays a conductive role, and it itself also participates in the electrochemical reaction. Prebaked anode has the advantages of high degree of automation and less pollution during electrolysis, and has been widely used by various aluminum factories. The pre-baked anode consists of three parts: anode guide rod, steel claw and anode carbon block. The anode guide rod is connected to the power supply, and the current is introduced into the anode carbon block through the steel claw for electrolysis. In the electrolytic cell, with the continuous consumption of anode carbon blocks, the anode system including steel claws needs to be lowered regularly to ensure the normal progress ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/12
Inventor 刘学伟高毅张建勋张创奇吴连成吴卫国
Owner 青铜峡铝电有限责任公司
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