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Vitrified aluminum alkali-resistant brick and preparation method thereof

A technology for porcelainizing aluminum and alkali-resistant bricks, applied in the field of refractory materials, can solve problems such as poor corrosion resistance, and achieve the effects of improving high temperature performance, reducing firing temperature, and strong corrosion resistance

Inactive Publication Date: 2018-05-04
吕梁耀金道冶金材料工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, provide a porcelain aluminum alkali-resistant brick and its preparation method, and solve the technical problem of poor corrosion resistance existing in the existing alkali-resistant brick

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of vitrified aluminum alkali-resistant brick in this embodiment is prepared from batching materials and binders. The batching materials are prepared from the following raw materials in weight percentages: 30% of stone porcelain aluminum, 8% of calcined kaolin, 5% of Suzhou soil, 2% of micro-silica powder; the binder is silica sol, and the addition amount of the binder is 4% of the total weight of the batch.

[0025] A method for preparing porcelain aluminum alkali-resistant bricks, comprising the following steps:

[0026] 1) Preparation of feldspathic porcelain aluminum raw materials:

[0027] A. Select feldspar waste ceramic insulators with a clean surface and no debris from the waste ceramic insulators;

[0028] B. Put the selected feldspathic waste ceramic insulators into a jaw crusher for preliminary crushing; then use a jet mill for fine grinding to obtain a fine powder with a particle size of ≤0.045mm;

[0029] C. After removing iron from the fine powder,...

Embodiment 2

[0039] A kind of vitrified aluminum alkali-resistant brick in this embodiment is prepared from batching materials and binders. The batching materials are prepared from the following raw materials in weight percentages: 20% of stone porcelain aluminum, 4% of calcined kaolin, 3% of Suzhou soil, 5% of silica fume; the binder is silica sol, and the addition amount of the binder is 5% of the total weight of the batch.

[0040] A method for preparing porcelain aluminum alkali-resistant bricks, comprising the following steps:

[0041] 1) Preparation of feldspathic porcelain aluminum raw materials:

[0042] A. Select feldspar waste ceramic insulators with a clean surface and no debris from the waste ceramic insulators;

[0043] B. Put the selected feldspathic waste ceramic insulators into a jaw crusher for preliminary crushing; then use a jet mill for fine grinding to obtain a fine powder with a particle size of ≤0.045mm;

[0044] C. After removing iron from the fine powder, the fel...

Embodiment 3

[0054] A kind of vitrified aluminum alkali-resistant brick in this embodiment is prepared from batching materials and binders. The batching materials are prepared from the following raw materials in weight percentages: 22% of stone porcelain aluminum, 10% of calcined kaolin, 4% of Suzhou soil, 4% of silica fume; the binder is silica sol, and the addition amount of the binder is 6% of the total weight of the batch.

[0055] A method for preparing high-load soft medium-alumina bricks, comprising the following steps:

[0056] 1) Preparation of feldspathic porcelain aluminum raw materials:

[0057] A. Select feldspar waste ceramic insulators with a clean surface and no debris from the waste ceramic insulators;

[0058] B. Put the selected feldspathic waste ceramic insulators into a jaw crusher for preliminary crushing; then use a jet mill for fine grinding to obtain a fine powder with a particle size of ≤0.045mm;

[0059] C. After removing iron from the fine powder, the feldspat...

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Abstract

The invention belongs to the technical field of refractory matters and in particular relates to a vitrified aluminum alkali-resistant brick and a preparation method thereof. The technical problem existing in the conventional alkali-resistant brick that corrosion resistance is poor is mainly solved. According to the technical scheme of the invention, the vitrified aluminum alkali-resistant brick isprepared from ingredients and a binding agent, wherein the ingredients are prepared from the following raw materials in percentage by weight: 55-68% of low-bauxite clinker, 20-30% of feldspathic vitrified aluminum, 4-10% of calcined kaolin, 4-5% of Suzhou clay and 2-5% of silica fume; and the binding agent is silica sol, and the addition amount of the binding agent is 3-6% of the total weight ofthe ingredients. The preparation method of the vitrified aluminum alkali-resistant brick comprises the following steps: 1) preparing raw materials of feldspathic vitrified aluminum; 2) powder preparation; 3) mixing mill of raw materials; 4) forming and blank making; 5) drying; 6) firing; and 7) cooling, thereby obtaining the finished product. The vitrified aluminum alkali-resistant brick disclosedby the invention has the advantages of being acid and alkali resistant, high in corrosion resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, in particular to a vitrified aluminum alkali-resistant brick and a preparation method thereof. Background technique [0002] my country is the largest cement producer in the world. In 2016, the national cement output reached 2.4 billion tons. In terms of process technology and equipment, the new dry process cement production process is the main one, and the preheater kiln and precalciner kiln of the new dry process cement production line And three times in charge of the site, are used to build a variety of alkali-resistant bricks. [0003] However, the existing alkali-resistant bricks are mainly clay series refractory bricks and ordinary silica bricks, which are difficult to achieve the unity of alkali corrosion resistance and high temperature resistance, so the damage is heavy and the service life is restricted. Contents of the invention [0004] The purpose of the present inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B33/13C04B33/132C04B33/138
CPCC04B33/13C04B33/1324C04B33/138C04B35/66C04B2235/3418C04B2235/5427C04B2235/5436C04B2235/5445Y02P40/60
Inventor 闫承华闫祖宁曹宏光闫业玉刘丽君李海君闫祖渊
Owner 吕梁耀金道冶金材料工程技术有限公司
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