CN100430334C - Alumina brick - Google Patents
Alumina brick Download PDFInfo
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- CN100430334C CN100430334C CNB2006100464317A CN200610046431A CN100430334C CN 100430334 C CN100430334 C CN 100430334C CN B2006100464317 A CNB2006100464317 A CN B2006100464317A CN 200610046431 A CN200610046431 A CN 200610046431A CN 100430334 C CN100430334 C CN 100430334C
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- grade bauxite
- high grade
- alumina brick
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Abstract
The present invention relates to a refractory product-a high-aluminum brick for high temperature kilns. The raw materials of the high-aluminum brick is matched according to the following portions by weight: 40 to 60 portions of extra-grade bauxite granules, 20 to 40 portions of extra-grade bauxite fine powder of 200 meshes, 5 to 10 portions of extra-grade Guangxi white mud, 5 to 10 portions of alumina powder, and 6 to 8 portions of dextrin solution with bonding agent of 30% concentration. The present invention has the advantages of good high temperature strength and high pressure resistance strength because multiple stages of matching materials, high-pressure forming and high-temperature sintering are adopted.
Description
Technical field
The present invention relates to a kind of high temperature kiln refractory product---high alumina brick.
Background technology
High alumina brick is used in steel mill's blast furnace, continuous casting furnace at present in a large number, high temperature kilns such as various process furnace, soaking pit, large-sized boiler liner, incinerator and various heat treatment furnaces.High alumina brick iron level height in the market, problems such as explosion, distortion, life-span be short often appear in the impurity level height in the use, and not only influence is produced, and also causes the waste of resource and manpower.
Summary of the invention
The object of the present invention is to provide a kind of superior a kind of high alumina brick of function that overcomes the prior art shortcoming.
The object of the present invention is achieved like this:
A kind of high alumina brick is characterized in that its raw material is by following weight part proportioning:
High grade bauxite particle: 40～60 parts; Wherein grain diameter is that the high grade bauxite of 0-1mm and the part by weight of the high grade bauxite that grain diameter is 1-3mm are 2: 3
The high grade bauxite powder is 200 order fine powders: 20～40 parts
Superfine Guangxi white clay: 5-10 part
Aluminum oxide powder: 5-10 part
Wedding agent: 30% volumetric molar concentration dextrin solution 6-8 part.
The manufacturing process of described high alumina brick is:
1) premix: high grade bauxite particle in the above-mentioned raw materials is mixed by described proportioning, stir;
2) mixing: earlier the particulate material of premix is added wedding agent 30% concentration dextrin solution by described weight part proportioning and stir, it is mixing to add the continuation of high grade bauxite powder 200 order fine powders in described weight part ratio then, evenly agglomerating until grog;
3) moulding: mixing back grog is good by the weighing of every high alumina brick fixed weight, pour extrusion molding under 600 tons of pressure in the mold into;
4) burn till: the high alumina brick after the moulding is put into the high temperature kiln, and 1450 ℃ are burnt till.
Advantage of the present invention is:
1) according to using the position difference, in described raw material range, adjust proportioning raw materials as requested, strong at usability.
2) good thermal shock stability, because aluminum oxide powder is used at the matrix position, it is little to burn till the after coefficient, not yielding explosion.
3) adopt multiple stage material compounding, the high pressure moulding, high temperature burns till, so hot strength is good, compressive strength is high.
4) apparent size is accurate, and overall performance is superior.
Embodiment
Embodiment 1:
A kind of high alumina brick, its raw material is pressed following weight part proportioning:
High grade bauxite particle: 50 parts; Wherein grain diameter is that the high grade bauxite of 0-1mm and the part by weight of the high grade bauxite that grain diameter is 1-3mm are 2: 3
The high grade bauxite powder is 200 order fine powders: 30 parts
Superfine Guangxi white clay: 8 parts
Aluminum oxide powder: 8 parts
Wedding agent: 7 parts of 30% volumetric molar concentration dextrin solutions.
The manufacturing process of described high alumina brick is:
1) premix: high grade bauxite particle in the above-mentioned raw materials is mixed by described proportioning, stir;
2) mixing: earlier the particulate material of premix is added wedding agent 30% concentration dextrin solution by described weight part proportioning and stir, it is mixing to add the continuation of high grade bauxite powder 200 order fine powders in described weight part ratio then, evenly agglomerating until grog;
3) moulding: mixing back grog is good by the weighing of every high alumina brick fixed weight, pour extrusion molding under 600 tons of pressure in the mold into;
4) burn till: the high alumina brick after the moulding is put into the high temperature kiln, and 1450 ℃ are burnt till.
Embodiment 2:
A kind of high alumina brick, its raw material is pressed following weight part proportioning:
High grade bauxite particle: 40 parts; Wherein grain diameter is that the high grade bauxite of 0-1mm and the part by weight of the high grade bauxite that grain diameter is 1-3mm are 2: 3
The high grade bauxite powder is 200 order fine powders: 40 parts
Superfine Guangxi white clay: 10 parts
Aluminum oxide powder: 5 parts
Wedding agent: 6 parts of 30% volumetric molar concentration dextrin solutions.
The manufacturing process of described high alumina brick is with embodiment 1.
Embodiment 3:
A kind of high alumina brick, its raw material is pressed following weight part proportioning:
High grade bauxite particle: 60 parts; Wherein grain diameter is that the high grade bauxite of 0-1mm and the part by weight of the high grade bauxite that grain diameter is 1-3mm are 2: 3
The high grade bauxite powder is 200 order fine powders: 20 parts
Superfine Guangxi white clay: 5 parts
Aluminum oxide powder: 10 parts
Wedding agent: 8 parts of 30% volumetric molar concentration dextrin solutions.
The manufacturing process of described high alumina brick is with embodiment 1.
Claims (2)
1, a kind of high alumina brick is characterized in that its raw material is by following weight part proportioning:
High grade bauxite particle: 40～60 parts; Wherein grain diameter is that the high grade bauxite of 0-1mm and the part by weight of the high grade bauxite that grain diameter is 1-3mm are 2: 3
The high grade bauxite powder is 200 order fine powders: 20～40 parts
Superfine Guangxi white clay: 5-10 part
Aluminum oxide powder: 5-10 part
Wedding agent: 30% volumetric molar concentration dextrin solution 6-8 part.
2, the manufacturing process of high alumina brick according to claim 1 is characterized in that this technology comprises the steps:
1) premix: high grade bauxite particle in the above-mentioned raw materials is mixed by described proportioning, stir;
2) mixing: earlier the particulate material of premix is added wedding agent 30% volumetric molar concentration dextrin solution by described weight part proportioning and stir, it is mixing to add the continuation of high grade bauxite powder 200 order fine powders in described weight part ratio then, evenly agglomerating until grog;
3) moulding: mixing back grog is good by the weighing of every high alumina brick fixed weight, pour extrusion molding under 600 tons of pressure in the mold into;
4) burn till: the high alumina brick after the moulding is put into the high temperature kiln, and 1450 ℃ are burnt till.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100464317A CN100430334C (en) | 2006-04-27 | 2006-04-27 | Alumina brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100464317A CN100430334C (en) | 2006-04-27 | 2006-04-27 | Alumina brick |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1847190A CN1847190A (en) | 2006-10-18 |
| CN100430334C true CN100430334C (en) | 2008-11-05 |
Family
ID=37076966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100464317A Expired - Fee Related CN100430334C (en) | 2006-04-27 | 2006-04-27 | Alumina brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100430334C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343186B (en) * | 2008-08-20 | 2011-01-05 | 江苏耐基炉衬有限公司 | High abrasion-proof anti-heat vibration high-alumina brick and preparation thereof |
| CN102887714A (en) * | 2011-07-20 | 2013-01-23 | 郑州汇特耐火材料有限公司 | Environmentally-friendly anti-stripping high-alumina brick and preparation method thereof |
| CN102887713B (en) * | 2011-07-20 | 2016-05-11 | 郑州汇特耐火材料有限公司 | A kind of low heat conductivity siliceous mullite brick and preparation method thereof |
| CN103803992A (en) * | 2013-12-27 | 2014-05-21 | 郑州汇特耐火材料有限公司 | Stone brick for garbage incinerator and preparation method thereof |
| CN105837168B (en) * | 2016-03-23 | 2018-09-14 | 杨郑 | A kind of preparation method of high-strength building block |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176234A (en) * | 1996-09-06 | 1998-03-18 | 鞍山市腾鳌特区亚新亚耐火材料研究所 | Low-temperature baked high-alumina brick |
-
2006
- 2006-04-27 CN CNB2006100464317A patent/CN100430334C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176234A (en) * | 1996-09-06 | 1998-03-18 | 鞍山市腾鳌特区亚新亚耐火材料研究所 | Low-temperature baked high-alumina brick |
Non-Patent Citations (2)
| Title |
|---|
| 添加物对高铝砖结构和性能的影响. 李乃动.耐火材料，第33卷第3期. 1999 |
| 添加物对高铝砖结构和性能的影响. 李乃动.耐火材料，第33卷第3期. 1999 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1847190A (en) | 2006-10-18 |
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| PB01 | Publication | ||
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Granted publication date: 20081105 Termination date: 20120427 |