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A preparation method of high-alumina bricks for slurry-bonded matrix homogenization blast furnace

A high-alumina brick and mud technology, applied in the field of refractory materials, can solve problems such as energy consumption and waste of resources, and achieve the effects of energy saving, stable performance and cost reduction

Inactive Publication Date: 2016-04-13
河南省新密正泰耐材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, high-alumina bricks for general kilns have been produced by calcining raw materials, high-pressure preparation, and high-temperature calcination. This method can only discard low-grade natural raw materials, waste resources and consume energy.

Method used

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  • A preparation method of high-alumina bricks for slurry-bonded matrix homogenization blast furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The high-alumina bricks used in slurry-bonded matrix homogenization blast furnaces use the following raw materials in parts by weight: 10 parts of special-grade high-alumina bauxite clinker, 10 parts of first-grade high-alumina bauxite clinker, 20 parts of co-grinding powder A, and 5 parts of mud.

[0015] The components of the co-grinding powder A in parts by weight are: 40 parts of special-grade high-alumina bauxite clinker, 20 parts of special-grade high-alumina bauxite raw meal, 1 part of coal gangue, and 5 parts of soft clay.

[0016] The mud is made by ball milling Guangxi clay, coal gangue, lignin and water with a mass ratio of 0.5:0.5:0.5:2.

[0017] The method for preparing slurry-bonded matrix homogenized high-alumina bricks for blast furnaces includes the following steps: 1) adding Guangxi clay, coal gangue, lignin, and water with a mass ratio of 0.5:0.5:0.5:2 to a ball mill and ball milling for 7 hours to form a slurry ;

[0018] 2) Mill the super-grade hig...

Embodiment 2

[0022] The high-alumina bricks used in the slurry-bonded matrix homogenization blast furnace, the raw materials used in parts by weight are: 20 parts of super-grade high-alumina bauxite clinker, 30 parts of first-grade high-alumina bauxite clinker, 5 parts of andalusite, 50 parts of co-grinding powder A, mud 8 servings.

[0023] The components of the co-grinding powder A in parts by weight are: 50 parts of special-grade high-alumina bauxite clinker, 30 parts of special-grade high-alumina bauxite raw meal, 5 parts of coal gangue, and 10 parts of soft clay.

[0024] The mud is made by ball milling Guangxi clay, coal gangue, lignin and water with a mass ratio of 0.5:0.5:0.5:2.

[0025] The method for preparing slurry-bonded matrix homogenized high-alumina bricks for blast furnaces includes the following steps: 1) adding Guangxi clay, coal gangue, lignin, and water with a mass ratio of 0.5:0.5:0.5:2 to a ball mill and ball milling for 8 hours to form a slurry ;

[0026] 2) Mill ...

Embodiment 3

[0030] The high-alumina bricks used in the mud-bonded matrix homogenization blast furnace, the raw materials used in parts by weight are: 30 parts of super-grade high-alumina bauxite clinker, 10 parts of first-grade high-alumina bauxite clinker, 10 parts of andalusite, 20 parts of co-grinding powder A, mud 6 servings.

[0031] The components of co-grinding powder A in parts by weight are: 60 parts of super-grade high-alumina bauxite clinker, 20 parts of super-grade high-alumina bauxite raw meal, 8 parts of coal gangue, and 5 parts of soft clay.

[0032] The mud is made by ball milling Guangxi clay, coal gangue, lignin and water with a mass ratio of 0.5:0.5:0.5:2.

[0033] The method for preparing slurry-bonded matrix homogenized high-alumina bricks for blast furnaces includes the following steps: 1) adding Guangxi clay, coal gangue, lignin, and water with a mass ratio of 0.5:0.5:0.5:2 to a ball mill and ball milling for 9 hours to form a slurry ;

[0034] 2) Mill the super-g...

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Abstract

The invention belongs to the technical field of refractory materials, and concretely relates to a slurry combined matrix-homogenized high-alumina brick for a blast furnace, and a making method thereof. Raw materials used by the high-alumina brick comprise 10-30 parts of special-grade high-alumina bauxite chamotte, 10-30 parts of first-grade high-alumina bauxite chamotte, 0-10 parts of andalusite, 20-50 parts of co-ground powder A, and 5-8 parts of a slurry. The addition of a certain amount of gangue and raw bauxite in the raw materials reduces the raw material cost; and a slurry combined matrix homogenizing technology is adopted during the preparation, and a low temperature is adopted especially in the calcining process, so the energy is saved, the made high-alumina brick for a blast furnace has stable performances and a consistent color, and the performance indexes of the brick accord with relevant requirements.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a high-alumina brick for a mud-bonded matrix homogenizing blast furnace and a preparation method thereof. Background technique [0002] Generally, thermal kilns need to use refractory materials as linings to resist high temperatures. For a long time, high-alumina bricks for general kilns have been produced by calcining raw materials, high-pressure preparation, and high-temperature calcination. This method can only discard low-grade natural raw materials, waste resources and consume energy. Since the working temperature of different parts of the kiln is different, there will be subtle differences in the performance of high alumina bricks used in different parts of the kiln. Contents of the invention [0003] The object of the present invention is to provide a high-alumina brick for a slurry-bonded matrix homogenized blast furnace and a preparation metho...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 王建军任健均
Owner 河南省新密正泰耐材有限公司
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