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A breathable brick prepared from industrial by-product aluminum chrome slag and its production method

A technology of aluminum chromium slag and by-products, applied in the field of breathable bricks, to achieve good anti-stripping performance and widen the effect of application range

Active Publication Date: 2019-01-18
LUOYANG XUANSHI HIGH TEMPERATURE MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technology and products of air permeable bricks for refining ladles using aluminum chromium slag as raw materials have not been reported yet.

Method used

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  • A breathable brick prepared from industrial by-product aluminum chrome slag and its production method
  • A breathable brick prepared from industrial by-product aluminum chrome slag and its production method
  • A breathable brick prepared from industrial by-product aluminum chrome slag and its production method

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention is described in detail below by way of example:

[0022] 1. The raw material ratio of the breathable core is as follows:

[0023]

[0024] 1.1, prepare materials according to any formula in the above table;

[0025] 1.2, Grind the fine powder for 1 hour to make it fully mixed;

[0026] 1.3, fully mix the well-mixed fine powder and aggregate;

[0027] 1.4. Add the above premixed material to the corresponding weight of water, and stir evenly in a forced mixer;

[0028] 1.5, the evenly stirred mud is formed by vibration;

[0029] 1.6, maintain in an environment with a temperature of 60°C and a relative humidity of 75%;

[0030] 1.7. After curing, remove the mold and dry at 150°C for 48 hours according to a certain drying system;

[0031] 1.8, the dried green body is fired at a high temperature of 1600°C according to a certain firing system;

[0032] 1.9. After the fired body is clad with a metal shell, the production is completed.

[0033] 2...

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Abstract

The invention discloses a breathable brick produced from an industrial byproduct aluminum chrome slag and a production method thereof. The byproduct aluminum chrome slag produced during metal chromium smelting is used as a raw material, and according to components and performance characteristics of the aluminum chrome slag, the aluminum chrome slag is reasonably matched with other refractory materials, so that the water demand and the rheological property of a castable are controlled and a breathable brick product with good scouring resistance, erosion resistance and stripping resistance is produced; compared with the prior art, the invention has the advantages as follows: the industrial byproduct aluminum chrome slag is successfully applied to the field of the breathable brick products having relatively high technical requirements, so that on one hand, the significance of turning wastes into treasures and recycling is achieved, and on the other hand, the application range of the aluminum chrome slag is widened.

Description

technical field [0001] The invention relates to a bottom argon blowing system for external refining of iron and steel metallurgical furnaces, in particular to ventilating bricks made of industrial by-products. Background technique [0002] In recent years, my country's industry has developed rapidly. Along with the rapid economic development, a large amount of industrial solid waste has been produced, which has a considerable impact on the natural environment. Comprehensive utilization is the main treatment method for industrial solid waste. Aluminum chromium slag is a by-product of the aluminothermic smelting of metal chromium. Its main components are alumina and chromium oxide, and there are also a large amount of silicon, sodium, calcium and other elements. If the aluminum chromium slag is not properly disposed of, the chromium element in it It will cause long-term irreversible damage to the environment. [0003] The breathable brick consists of two parts, the breathable...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66C04B35/622C21C7/072B22D41/02
CPCB22D41/02C04B35/62204C04B35/66C04B2235/3206C04B2235/3208C04B2235/3217C04B2235/3222C04B2235/3241C04B2235/3244C21C7/072
Inventor 梁永和张小旭
Owner LUOYANG XUANSHI HIGH TEMPERATURE MATERIALS CO LTD
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