CN101671184A - Formula of high-aluminum bricks sintered at low temperature and production method thereof - Google Patents
Formula of high-aluminum bricks sintered at low temperature and production method thereof Download PDFInfo
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- CN101671184A CN101671184A CN200910044429A CN200910044429A CN101671184A CN 101671184 A CN101671184 A CN 101671184A CN 200910044429 A CN200910044429 A CN 200910044429A CN 200910044429 A CN200910044429 A CN 200910044429A CN 101671184 A CN101671184 A CN 101671184A
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Abstract
The invention relates to a formula of high-aluminum bricks sintered at low temperature and a production method thereof, which is different from traditional formula of high-aluminum bricks and a production method of high-temperature sintering. In the formula, bricks can be sintered at the temperature of 1280 to 1400 DEG C, and the temperature is lower than that of the traditional formula by 100 to200 DEG C; the bricks can be sintered in an ordinary kiln furnace; and bauxite as a raw material comprises has the following chemical ingredients by weight percent: 50 to 90 percent of Al2O3, 3 to 50percent of SiO2, and the balance of impurities; and the formula comprises the following raw materials by weight percent: 70 to 50 percent of aggregate, 30 to 50 percent of fine powder and 5 to 15 percent of composite binder (additive). The production method comprises the following steps: breaking or grinding the bauxite for later use, wherein the granularity of the coarse aggregate is from 0 to15mm, and the granularity of fine powder is larger than or equal to 0.088 mm; and mixing aluminum foil sulfate and phosphoric acid according to a set proportion for later use; after preparing the raw material, uniformly mixing and stirring the aggregate, the fine powder and the composite binder according to set weight percent, sending the materials to a molding workshop for molding, and sending semi-finished products to a sintering workshop for sintering at the temperature of 1280 to 1400 DEG C. Certain composite bonding agent is introduced into the ingredients of the products, and the compositebonding agent can lower the sintering temperature and can improve the intensity.
Description
Technical field
The present invention relates to a kind of prescription and production method of refractory materials of high-aluminum bricks sintered at low temperature.
Background technology
All finish sintering being higher than under 1400 ℃ the temperature condition because the production firing temperature of traditional high alumina brick is general, this is difficult to reach 1400 ℃ high temperature for common kiln, thereby is difficult to finish sintering process.
Summary of the invention
One of purpose of the present invention is to provide a kind of easy fired of high alumina brick newly to fill a prescription, and its another purpose provides the production method of this kind high alumina brick.
The thickness material that product of the present invention uses is bauxitic clay, and its chemical component weight per-cent is Al
2O
350～90%, SiO
23～50%, all the other are impurity; Formula material weight percent aggregate: fine powder: combined binder (adding, down together) is 70～50: 30～50: 5～15.Its firing temperature is 1280 ℃～1400 ℃; Described combined binder is the mixture of alum liquor and phosphoric acid solution, and its concentration and ratio range are alum liquor (1.0g/cm
3～1.3g/cm
3): phosphoric acid (1.0g/cm
3～1.7g/cm
3)=5～9: 5～1.Production method: bauxitic clay is behind fragmentation or grinding, and the coarse aggregate granularity is 0～15mm, and the fine powder common abrasive dust of soft clay (or be added with)≤0.088mm is standby, and Tai-Ace S 150 and phosphoric acid are by standby after 5～9: 5～1 the mixed; Aggregate by weight percentage after raw material is ready to: fine powder: combined binder (adding) 70～50: 30～50: 5～15 mixes, stirs, deliver to the fitting room moulding then, the work in-process of forming are delivered to and are burnt till the workshop and burn till at 1280 ℃～1400 ℃ and get final product.
Gordian technique positively effect of the present invention is: introduce specific combined binder in the batching, this combined binder can play the effect that reduces firing temperature and improve intensity.
Embodiment
Embodiment 1, bauxite raw material chemical ingredients Al
2O
380%, SiO
213% all the other be impurity.
Alum liquor 1.29g/cm
3
Phosphoric acid solution 1.65g/cm
3
2, proportioning: 1., high alumina brick proportioning (weight percent)
Aggregate: fine powder: combined binder (adding) is 60: 40: 8
2., combined binder proportioning (weight percent)
Alum liquor: phosphoric acid solution is 90: 10
3, production method: bauxitic clay is behind fragmentation or grinding, and the coarse aggregate granularity is 0～8mm, and the fine powder common abrasive dust of soft clay (or be added with)≤0.088mm is standby, and Tai-Ace S 150 and phosphoric acid are by standby after 90: 10 the mixed.Aggregate by weight percentage after raw material is ready to: fine powder: combined binder (adding) is mix, stir at 60: 40: 8 (ageing mixture or not ageing mixture), deliver to the fitting room moulding then, the work in-process of forming are delivered to and are burnt till the workshop and burn till at 1280 ℃～1400 ℃ and get final product, and actual firing temperature is about 1350 ℃.
Claims (2)
1, a kind of formula of high-aluminum bricks sintered at low temperature is characterized in that: the chemical component weight per-cent of thickness material bauxitic clay is Al
2O
350～90%, SiO
23～50%, all the other are impurity; Formula material weight percent aggregate: fine powder: combined binder is 70～50: 30～50: 5～15; Its firing temperature is 1280 ℃～1400 ℃; Described combined binder is the mixture of alum liquor and phosphoric acid solution, and its concentration and ratio range are 1.0g/cm
3～1.3g/cm
3Alum liquor: 1.0g/cm
3～1.7g/cm
3Phosphoric acid solution=5～9: 5～1.
2, a kind of production method of easy fired temperature high alumina brick is characterized in that: bauxitic clay is behind fragmentation or grinding, and the coarse aggregate granularity is 0～15mm, and fine powder is through grinding or stand-by after adding the part soft clay and being milled to particle diameter≤0.088mm altogether; Then with Tai-Ace S 150 and phosphoric acid by weight percentage 5～9: 5～1 mix standby; After raw material, wedding agent are ready, by coarse aggregate: fine powder: the combined binder weight percent is 70～50: 30～50: 5～15 deliver to the fitting room moulding after mixing; The work in-process of forming are delivered to and are burnt till the workshop and burn till 1280 ℃～1400 ℃ temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910044429A CN101671184A (en) | 2009-09-19 | 2009-09-19 | Formula of high-aluminum bricks sintered at low temperature and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910044429A CN101671184A (en) | 2009-09-19 | 2009-09-19 | Formula of high-aluminum bricks sintered at low temperature and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101671184A true CN101671184A (en) | 2010-03-17 |
Family
ID=42018640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910044429A Pending CN101671184A (en) | 2009-09-19 | 2009-09-19 | Formula of high-aluminum bricks sintered at low temperature and production method thereof |
Country Status (1)
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|---|---|
| CN (1) | CN101671184A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643100A (en) * | 2012-05-18 | 2012-08-22 | 贵阳明通炉料有限公司 | Anti-hydration calcium magnesium refractory casting material |
| CN102659435A (en) * | 2012-05-18 | 2012-09-12 | 贵阳明通炉料有限公司 | Hydration-resistance non-fired calcium magnesia brick |
| CN103396132A (en) * | 2013-07-25 | 2013-11-20 | 永州市开创耐火材料有限公司 | Method for preparing complex-phase brick for lime kiln by utilizing waste magnesium-series refractory brick |
| CN104310970A (en) * | 2014-09-27 | 2015-01-28 | 景德镇陶瓷学院 | A method of enhancing thermal shock resistance of a fully-dense high-aluminum ceramic material and a product prepared by the method |
| CN108569907A (en) * | 2018-06-12 | 2018-09-25 | 中钢集团洛阳耐火材料研究院有限公司 | A kind of preparation method of Catofin dehydrogenating propanes reactor refractory material |
| CN109437935A (en) * | 2018-12-21 | 2019-03-08 | 郑州顺通新型耐火材料有限公司 | The production method of phosphate high-alumina brick |
-
2009
- 2009-09-19 CN CN200910044429A patent/CN101671184A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643100A (en) * | 2012-05-18 | 2012-08-22 | 贵阳明通炉料有限公司 | Anti-hydration calcium magnesium refractory casting material |
| CN102659435A (en) * | 2012-05-18 | 2012-09-12 | 贵阳明通炉料有限公司 | Hydration-resistance non-fired calcium magnesia brick |
| CN103396132A (en) * | 2013-07-25 | 2013-11-20 | 永州市开创耐火材料有限公司 | Method for preparing complex-phase brick for lime kiln by utilizing waste magnesium-series refractory brick |
| CN103396132B (en) * | 2013-07-25 | 2015-09-30 | 永州市开创耐火材料有限公司 | A kind ofly waste and old magnesia fire brick series is utilized to prepare the method for limekiln complex phase brick |
| CN104310970A (en) * | 2014-09-27 | 2015-01-28 | 景德镇陶瓷学院 | A method of enhancing thermal shock resistance of a fully-dense high-aluminum ceramic material and a product prepared by the method |
| CN104310970B (en) * | 2014-09-27 | 2017-01-11 | 景德镇陶瓷大学 | A method of enhancing thermal shock resistance of a fully-dense high-aluminum ceramic material and a product prepared by the method |
| CN108569907A (en) * | 2018-06-12 | 2018-09-25 | 中钢集团洛阳耐火材料研究院有限公司 | A kind of preparation method of Catofin dehydrogenating propanes reactor refractory material |
| CN109437935A (en) * | 2018-12-21 | 2019-03-08 | 郑州顺通新型耐火材料有限公司 | The production method of phosphate high-alumina brick |
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Open date: 20100317 |