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Process of dipping graphite onto anode steel pawl

A technology of anode steel claws and anode claws, which is applied in the field of anode steel claws dipped in graphite, can solve problems such as deterioration of the operating environment, achieve simple operation process, good effect, and solve the effect of deterioration of the operating environment

Inactive Publication Date: 2010-05-19
GUIZHOU BRANCH CHINA ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to address the deficiencies in the above-mentioned prior art, and provide a method for dipping graphite in anode steel claws that can effectively solve the problem of deterioration of the operating environment caused by dipping graphite in the anode steel claws, and has a simple operation process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Set the density to 1.2g / cm 3 , the carbon content is 98.5%, the moisture is 0.5%, the ash and the volatile matter are 1%, and the graphite powder with a particle size of -0.05mm is put into a graphite box and flattened, and the height is 10cm. Put the phosphorus pig iron on the surface of the anode claw head and Clean the surface shell, use the crane to lift the steel claw group and slowly put it vertically into the graphite box, so that the four claw heads are evenly dipped in graphite powder, and the dipping height is required to be 10cm. It eliminates the problem of large kerosene burning flames and black smoke during anode pouring, which makes the operating environment worse and causes certain environmental pollution.

[0010] Due to the better effect of the dry dipping graphite method, it can be dipped every other cycle, the anode steel claws can no longer be sand washed, and the pressure drop of aluminum carbon is basically the same as that of the original process...

Embodiment 2

[0012] Set the density to 1.35g / cm 3 , graphite powder with a carbon weight content of 98.8%, water content of 0.49%, ash content and volatile content of 0.8%, and a particle size of -0.05mm is placed in a graphite box and flattened to a height of not less than 10cm. Clean up the pig iron and surface shell, lift the steel claw group with a crane and slowly put it vertically into the graphite box, so that the four claw heads are evenly dipped in graphite powder, and the dipping height is required to be 12cm. It eliminates the problem of large kerosene burning flames and black smoke during anode pouring, which makes the operating environment worse and causes certain environmental pollution. Due to the better effect of the new technology of dry dipping graphite, the pressure drop of aluminum carbon is basically the same as that of the original process.

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Abstract

The process of dipping graphite onto anode steel pawl for aluminum electrolysis features that the anode steel pawl is inserted vertically into graphite powder to make the four pawl ends coated with graphite powder. The process without kerosene added into graphite makes the subsequent anode casting process no burning of kerosene, environment friendly and simple.

Description

technical field [0001] The invention relates to a method for dipping an anode steel claw to coat graphite, and relates to a method for dipping an anode steel claw to coat graphite in an aluminum electrolysis process. Background technique [0002] During the electrolysis of aluminum, the anode steel claws are coated with graphite every cycle. The traditional method of dipping anode steel claws in graphite is to mix graphite powder with kerosene, and immerse the anode steel claws in the mixture of kerosene and graphite powder, that is, to perform graphite wet dipping operation. Because the dipping layer dipped in the anode steel claw contains kerosene, when the anode is poured, the kerosene will burn and produce a lot of black smoke, which will deteriorate the operating environment and cause environmental pollution. In each cycle, the wet-dipped graphite The operation requires sand washing of the steel claws, and the dipping process is complicated. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C3/12
Inventor 吕子剑吴举李希明隋红叶成庚党步军崔新芳吕增旭葛春玲
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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