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Composite slurry for aluminium electrobath and its production process

An aluminum electrolytic cell and mud technology, applied in the field of high-temperature refractory materials, can solve the problems of restricting popularization and application, high prices, etc., and achieve the effects of increasing manufacturing costs, increasing service life, and reducing air oxidation resistance

Inactive Publication Date: 2007-03-21
BASAN SPECIAL FIRE RETARDANT MATERIAL FACTORY SHANDONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its relatively high price, the popularization and application of this product in the aluminum electrolysis industry is restricted.

Method used

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  • Composite slurry for aluminium electrobath and its production process
  • Composite slurry for aluminium electrobath and its production process
  • Composite slurry for aluminium electrobath and its production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Raw material Particle size range Effective ratio

[0035] (1) mixed powder

[0036] ①sic1 material: 0.2~0.09mm 20%

[0037] ②sic2 material: ≤0.09mm 60%

[0038] ③Natural flake graphite: ≤0.1mm 5%

[0039] ④Industrial silicon powder: ≤0.064mm 5%

[0040] ⑤ Fine clay powder: ≤0.075mm 10%

[0041] (2) Proportion of mixed binder solution

[0042] ①Special phenolic resin for refractory materials: 50%

[0043] ② Epoxy resin 15%

[0044] (3) Epoxy resin curing agent 5%

[0045] ④ Industrial alcohol: 30%

[0046] (3) The composite mud is:

[0047] ①Mixed powder raw material 74%

[0048] ② Mix binder solution 26%

Embodiment 2

[0050] (1) Powder ratio

[0051] ①sic1 material: 0.2-0.09mm 40%

[0052] ②sic2 material: ≤0.09mm 40%

[0053] ③Natural flake graphite: ≤0.1mm 5%

[0054] ④Industrial silicon powder: ≤0.064mm 5%

[0055]⑤ Fine clay powder: ≤0.0075 10%

[0056] (2) Proportion of binder solution

[0057] ①Special phenolic resin for refractory materials: 55%

[0058] ② Epoxy resin 15%

[0059] (3) Epoxy resin curing agent 3%

[0060] ④ Industrial alcohol: 27%

[0061] (3) The composite mud is:

[0062] ①Mixed powder raw material 70%

[0063] ② Mix binder solution 30%

Embodiment 3

[0065] (1) Mixed powder ratio

[0066] ①sic1 material: 0.2-0.09mm 35%

[0067] ②sic2 material: ≤0.09mm 45%

[0068] Natural flake graphite: ≤0.1mm 5%

[0069] ④Industrial silicon powder: ≤0.064mm 5%

[0070] ⑤ Fine clay powder: ≤0.075mm 10%

[0071] (2) Proportion of mixed binder solution

[0072] ①Special phenolic resin for refractory materials 50%

[0073] ② Epoxy resin 17%

[0074] ③Epoxy resin curing agent 3%

[0075] ④Technical alcohol 30%

[0076] (3) The composite mud is:

[0077] ①Mixed powder raw material 73%

[0078] ② Mix binder solution 27%

[0079] Above-mentioned embodiment 3 is as the embodiment of preferred production method:

[0080] ①Powder production: Weigh out 35 kg of sic1 material with a particle size of 0.2-0.09mm after processing, 45 kg of sic2 material with a particle size of ≤0.09mm, 5 kg of natural flake graphite with a particle size of ≤0.1mm, and sic2 material with a particle size of ≤0.064mm 5 kg of industrial silicon powder, 10 kg of ...

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Abstract

The composite slurry for aluminum electrobath consists of mixture powder and mixed adhesive solution, the mixture powder consists of sic1, sic2, scale graphite, industrial silica powder and clay powder, and the mixed adhesive solution consists of phenolic resin specially for refractory material, epoxy resin and its curing agent, and industrial alcohol. The composite slurry is filled into crack of aluminum electrobath, has high adhesion strength and may be cured at normal temperature.

Description

[Affiliated technical field] [0001] The invention relates to an inner lining material capable of improving the service life of an aluminum electrolytic cell, a composite mud for an aluminum electrolytic cell, a production method and special equipment thereof, and belongs to the field of high-temperature refractory materials. [technical background] [0002] The service life of the aluminum electrolytic cell is determined by many factors, especially the performance of the lining material of the measuring wall is one of the important factors. They must be able to resist chemical corrosion, physical corrosion and air oxidation of the aluminum electrolyte, and possess all these properties There must also be sufficient heat transfer capability to build a layer of solidified electrolyte on the side walls to protect the legs. In aluminum electrolysis plants, tamping carbon paste, amorphous carbon block, graphite carbon block and anthracite coal block are the most commonly used side ...

Claims

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Application Information

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IPC IPC(8): C04B26/02C04B14/04
Inventor 李玉怀郭法军许颖君林月珍刘良永贾宪忠任庆祥
Owner BASAN SPECIAL FIRE RETARDANT MATERIAL FACTORY SHANDONG
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