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Sponge brick produced from aluminum ash and preparation process thereof

A preparation process, sponge brick technology, applied in the field of building materials, to achieve efficient utilization, solve the problem of fluorine pollution, and significant social benefits

Pending Publication Date: 2022-03-01
淄博天之润生态科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology helps reduce harmful emissions from an industrial process that uses aluminium or other metals during production. It also makes it easier for companies to dispose of these wastes without causing negative impact on their surroundings.

Problems solved by technology

The technical problem addressed by this patented technology relates to finding ways to dispose of various types of industrial waste generated through manufacturing processes like producing electricity or making products made with metals. This creates challenging issues due to its potential health risks caused by exposure to excessive amounts of fluoroaluminate (FAC) produced when burning aluminium offgases at temperatures above 550°C.

Method used

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  • Sponge brick produced from aluminum ash and preparation process thereof
  • Sponge brick produced from aluminum ash and preparation process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The preparation technology of the sponge brick that described aluminum ash is produced comprises the following steps:

[0032] (1) 55% of aluminum ash, 15% of 200 mesh potassium albite tailings fine powder, 12% coal gangue particles, 15% high temperature clay and 3% mass concentration of 28% water glass solution are mixed uniformly to obtain a sponge. Mixture;

[0033] (2) Fill the sponge to the mixture in the metal brick mold of the press, and pressurize it once at 35MPa;

[0034] (3) The adobe after pressing is dried at 110°C for 9 hours, then fired at 1100°C for 50 minutes, and cooled to obtain the product.

Embodiment 2

[0036] The preparation technology of the sponge brick that described aluminum ash is produced comprises the following steps:

[0037] (1) Mix 65% aluminum ash, 10% 200 mesh potassium albite tailings fine powder, 10% coal gangue particles, 10% high temperature clay and 5% mass concentration of 30% water glass solution to obtain a sponge and mix material;

[0038] (2) Fill the sponge to the mixture in the metal brick mold of the press, and pressurize it once at 40MPa;

[0039] (3) The adobe after pressing is dried at 110°C for 9 hours, then fired at 1100°C for 50 minutes, and cooled to obtain the product.

Embodiment 3

[0041] The preparation technology of the sponge brick that described aluminum ash is produced comprises the following steps:

[0042] (1) 70% aluminum ash, 10% 200 mesh potassium albite tailings fine powder, 6% coal gangue particles, 7% high temperature clay and 7% mass concentration of 25% water glass solution are mixed evenly to obtain a sponge and mix material;

[0043] (2) Fill the sponge to the mixture in the metal brick mold of the press, and pressurize it once at 50MPa;

[0044] (3) The adobe after pressing is dried at 110°C for 9 hours, then fired at 1100°C for 50 minutes, and cooled to obtain the product.

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PUM

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Abstract

The invention belongs to the technical field of building materials, and particularly relates to a sponge brick produced from aluminum ash and a preparation process of the sponge brick, and the sponge brick produced from the aluminum ash is prepared by taking the aluminum ash as a main raw material and adding a pore forming agent, a fluxing agent, a high-temperature binding agent and a forming binding agent as auxiliary materials. According to the invention, the aluminum ash in the electrolytic aluminum industry can be effectively consumed, on one hand, the problem of environment-friendly discharged waste disposal of electrolytic aluminum enterprises is solved, on the other hand, efficient utilization of resources is realized, on the other hand, sponge brick products with good market prospects are provided, and the economic benefit, the environment-friendly benefit and the social benefit are very remarkable; meanwhile, the problem of fluorine pollution of the aluminum ash can be well solved, fluorine and aluminum-silicon-calcium in the aluminum ash form fluorosilicate glass with stable chemical properties at high temperature, and fluorine is not dissolved out any more.

Description

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Claims

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Application Information

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Owner 淄博天之润生态科技有限公司
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