CN101234887A - High-strength wearable brick - Google Patents
High-strength wearable brick Download PDFInfo
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- CN101234887A CN101234887A CNA2007100670056A CN200710067005A CN101234887A CN 101234887 A CN101234887 A CN 101234887A CN A2007100670056 A CNA2007100670056 A CN A2007100670056A CN 200710067005 A CN200710067005 A CN 200710067005A CN 101234887 A CN101234887 A CN 101234887A
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- China
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- high alumina
- equal
- diameter
- alumina
- silica powder
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Abstract
The invention discloses a high-strength wear-resistant tile prepared by adopting high alumina, Alpha-Al2O3 micropowder and silicon oxide micropowder; the high alumina consists of four specifications of diameter that: the diameter is less than 0.1mm; the diameter is more than or equal to 0.1mm and is less than 1mm; the diameter is more than or equal to 1mm and is less than 3mm; the diameter is more than or equal to 3mm; weight percentages of the raw materials respectively are as follows: 32-38percent of the high alumina with the diameter less than 0.1mm, 18-22 percent of the high alumina with the diameter more than or equal to 0.1mm and less than 1mm, 32-38 percent of the high alumina with the diameter more than or equal to 1 mm and less than 3 mm, 3-5 percent of the high alumina with the diameter more than or equal to 3 mm, 2-4 percent of the Alpha-Al2O3 micropowder and 2-4 percent of the silicon oxide micropowder. The tile adopts the high alumina with a plurality of specifications and adds the Alpha-Al2O3 micropowder and silicon oxide micropowder so that the content of alumina in the finished tile is caused to be up to over 75 percent; thus improving the anti-erosion ability of the products; the added nano silicon micropowder promotes the sintering and further improves the anti-erosion ability. Service life of the wear-resistant tile is prolonged with a using time more than one year and the highest two years.
Description
[technical field]
The present invention relates to a kind of high-strength abrasive brick, relate in particular to the employed high-strength abrasive brick of wind-guiding machine shaft kiln.
[background technology]
Be that the abrasive brick that is adopted is common phosphoric acid salt high alumina brick in the present wind-guiding machine shaft kiln, adopt common high aluminium material and raw clay to make.The content of aluminum oxide is between 55-65%, and without crossing pyroprocessing.The content of aluminum oxide is lower in this finished bricks, the use temperature of product≤1350 ℃, and corrosion resistance is relatively poor.Adobe is without crossing high-temperature calcination, and resistance to elevated temperatures is poor.Can only use 6 months these abrasive bricks can not use with regard to being etched at most, work-ing life is short.
[summary of the invention]
Purpose of the present invention solves the problems of the prior art exactly, proposes a kind of high-strength abrasive brick, and corrosion resistance is strong, long service life.
For achieving the above object, the present invention proposes a kind of high-strength abrasive brick, adopt high alumina, α-Al
2O
3Micro mist and ultrafine silica powder are made, and described high alumina comprises diameter d<0.1mm; 0.1mm≤d<1mm; 1mm≤d<3mm; Four kinds of specifications of d 〉=3mm, the mass percent of above-mentioned raw materials is respectively:
The high alumina 32-38% of d<0.1mm
0.1mm the high alumina 18-22% of≤d<1mm
The high alumina 32-38% of 1mm≤d<3mm
The high alumina 3-5% of d 〉=3mm
α-Al
2O
3Micro mist 2-4%
Ultrafine silica powder 2-4%.
As preferably, the mass percent of above-mentioned raw materials is respectively:
The high alumina 35% of d<0.1mm
0.1mm the high alumina 20% of≤d<1mm
The high alumina 35% of 1mm≤d<3mm
The high alumina 4% of d 〉=3mm
α-Al
2O
3Micro mist 3%
Ultrafine silica powder 3%.
As preferably, the mass percent of above-mentioned raw materials is respectively:
The high alumina 38% of d<0.1mm
0.1mm the high alumina 19% of≤d<1mm
The high alumina 32% of 1mm≤d<3mm
The high alumina 5% of d 〉=3mm
α-Al
2O
3Micro mist 4%
Ultrafine silica powder 2%.
As preferably, the mass percent of above-mentioned raw materials is respectively:
The high alumina 32% of d<0.1mm
0.1mm the high alumina 22% of≤d<1mm
The high alumina 37% of 1mm≤d<3mm
The high alumina 3% of d 〉=3mm
α-Al
2O
3Micro mist 2%
Ultrafine silica powder 4%.
As preferably, described ultrafine silica powder adopts the nano level ultrafine silica powder.
As preferably, described ultrafine silica powder is by SiO
2, C, Shuo subtract composition, the weight percent of mentioned component is: SiO
2Content more than or equal to 95%, the content of C is smaller or equal to 1%, the content that Shuo subtracts is smaller or equal to 1%, other is an impurity, the content of impurity is smaller or equal to 3%.
As preferably, described α-Al
2O
3The main component of micro mist is Al
2O
3, Al
2O
3Content more than or equal to 97%.
Beneficial effect of the present invention: the present invention adopts the high alumina of plurality of specifications, and adds an amount of α-Al
2O
3Micro mist and ultrafine silica powder make that the content of aluminum oxide reaches more than 75% in the finished bricks, the α-Al of interpolation
2O
3Improved the use temperature and the corrosion resistance of product, the nano silicone micro mist acceleration of sintering of interpolation has further improved the corrosion resistance of brick.Prolong the work-ing life of abrasive brick, reached duration of service more than 1 year, reached as high as 2 years.
[embodiment]
Embodiment one:
High-strength abrasive brick adopts high alumina, α-Al
2O
3Micro mist and ultrafine silica powder are made, and described high alumina comprises diameter d<0.1mm; 0.1mm≤d<1mm; 1mm≤d<3mm; Four kinds of specifications of d 〉=3mm, the mass percent of above-mentioned raw materials is respectively:
The high alumina 35% of d<0.1mm
0.1mm the high alumina 20% of≤d<1mm
The high alumina 35% of 1mm≤d<3mm
The high alumina 4% of d 〉=3mm
α-Al
2O
3Micro mist 3%
Ultrafine silica powder 3%.
The high alumina of selecting materials can select for use material such as simple abrasive materials such as Yangquan top grade material, Yangquan I, unit awl I or the boa river simple abrasive materials of superfine broken in carrying out after sorting.The technical requirements of all size material sees Table one.
Table one:
" impure material " in the table one means the impurity that adheres to of material piece, and thickness and area be all above the stipulator, but non-high alumina matter impurity such as coke, loess, Wingdale, sandstone etc. can not be sneaked in the high aluminium material." material has not been cooked or heated long enough " means that color is turned white or red sintering is bad, and water-intake rate surpasses the material piece of regulation." material not at the same level " means contained AL
2O
3Amount surpasses the material piece of this grade bound regulation.
The appearance standard of selecting materials is: Yangquan top grade material require the quality densification, hard, sintering is good, outward appearance is pure, fracture generally is blue black.The surperficial iron calcium impurities melt thickness of Yangquan tube abrasive material must not surpass 1.0mm, and area occupied must not surpass 4 * 4cm
2, iron, calcium impurities nuclear diameter must not surpass 8mm, and must not surpass 4 places in the material piece.
Ultrafine silica powder adopts the nano level ultrafine silica powder.Described ultrafine silica powder is by SiO
2, C, Shuo subtract composition, the weight percent of mentioned component is: SiO
2Content more than or equal to 95%, the content of C is smaller or equal to 1%, the content that Shuo subtracts is smaller or equal to 1%, other is an impurity, the content of impurity is smaller or equal to 3%.Ultrafine silica powder requires unformed silicon oxide, spherical, granularity<1 μ m, non-encrypted state of nature ph<7.
Described α-Al
2O
3The main component of micro mist is Al
2O
3, Al
2O
3Content more than or equal to 97%.α-Al
2O
3Micro mist requires volume density 〉=3.90g/cm
3, granularity requirements<5 μ m.
To add the concentration of 6kg again be about 50% industrial phosphoric acid (H to the above-mentioned raw materials of every 100kg in the process for preparation
3PO
40.5H
2O).This industrial phosphoric acid is used as pouring material binding agent.The general concentration of the industrial phosphoric acid of selling on the market is 85%, needs about thin up to 50%.Preparation is during phosphoric acid solution, need to claim earlier with water pour in Porcelain Jar or the plastic containers, claim strong phosphoric acid slowly to add in the entry again, the limit edged stirs, until evenly.Prepare phosphoric acid solution, should stir earlier before using, and measure its density.
Above-mentioned raw materials through batch mixing, be molded into the base brick after, send into and carry out drying in the dry drying room, up to the remaining moisture content of adobe≤1%.Adopt hyperthermia tunnel Kiln to burn till at last, make fuel with hot producer gas, top temperature is controlled at 1350-1400 ℃.The base brick is good through high thermal resistance after the high-temperature calcination.
Embodiment two:
Present embodiment is consistent with technology with selecting materials of embodiment one, and its difference mainly is that the proportion of raw materials amount slightly adjusts.The mass percent of each raw material is respectively:
The high alumina 38% of d<0.1mm
0.1mm the high alumina 19% of≤d<1mm
The high alumina 32% of 1mm≤d<3mm
The high alumina 5% of d 〉=3mm
α-Al
2O
3Micro mist 4%
Ultrafine silica powder 2%.
Embodiment three:
Present embodiment is consistent with technology with selecting materials of embodiment one, and its difference mainly is that the proportion of raw materials amount slightly adjusts.The mass percent of each raw material is respectively:
The high alumina 32% of d<0.1mm
0.1mm the high alumina 22% of≤d<1mm
The high alumina 37% of 1mm≤d<3mm
The high alumina 3% of d 〉=3mm
α-Al
2O
3Micro mist 2%
Ultrafine silica powder 4%.
The foregoing description is to explanation of the present invention, is not limitation of the invention, any scheme after the simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (7)
1. high-strength abrasive brick is characterized in that: adopt high alumina, α-Al
2O
3Micro mist and ultrafine silica powder are made, and described high alumina comprises diameter d<0.1mm; 0.1mm≤d<1mm; 1mm≤d<3mm; Four kinds of specifications of d 〉=3mm, the mass percent of above-mentioned raw materials is respectively:
The high alumina 32-38% of d<0.1mm
0.1mm the high alumina 18-22% of≤d<1mm
The high alumina 32-38% of 1mm≤d<3mm
The high alumina 3-5% of d 〉=3mm
α-Al
2O
3Micro mist 2-4%
Ultrafine silica powder 2-4%.
2. high-strength abrasive brick as claimed in claim 1 is characterized in that: the mass percent of above-mentioned raw materials is respectively:
The high alumina 35% of d<0.1mm
0.1mm the high alumina 20% of≤d<1mm
The high alumina 35% of 1mm≤d<3mm
The high alumina 4% of d 〉=3mm
α-Al
2O
3Micro mist 3%
Ultrafine silica powder 3%.
3. high-strength abrasive brick as claimed in claim 1 is characterized in that: the mass percent of above-mentioned raw materials is respectively:
The high alumina 38% of d<0.1mm
0.1mm the high alumina 19% of≤d<1mm
The high alumina 32% of 1mm≤d<3mm
The high alumina 5% of d 〉=3mm
α-Al
2O
3Micro mist 4%
Ultrafine silica powder 2%.
4. high-strength abrasive brick as claimed in claim 1 is characterized in that: the mass percent of above-mentioned raw materials is respectively:
The high alumina 32% of d<0.1mm
0.1mm the high alumina 22% of≤d<1mm
The high alumina 37% of 1mm≤d<3mm
The high alumina 3% of d 〉=3mm
α-Al
2O
3Micro mist 2%
Ultrafine silica powder 4%.
5. as any one described high-strength abrasive brick among the claim 1-4, it is characterized in that: described ultrafine silica powder adopts the nano level ultrafine silica powder.
6. described high-strength abrasive brick as claimed in claim 5 is characterized in that: described ultrafine silica powder is by SiO
2, C, Shuo subtract composition, the weight percent of mentioned component is: SiO
2Content more than or equal to 95%, the content of C is smaller or equal to 1%, the content that Shuo subtracts is smaller or equal to 1%, other is an impurity, the content of impurity is smaller or equal to 3%.
7. described high-strength abrasive brick as claimed in claim 6 is characterized in that: described α-Al
2O
3The main component of micro mist is Al
2O
3, Al
2O
3Content more than or equal to 97%.
Priority Applications (1)
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---|---|---|---|
CNA2007100670056A CN101234887A (en) | 2007-01-30 | 2007-01-30 | High-strength wearable brick |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2007100670056A CN101234887A (en) | 2007-01-30 | 2007-01-30 | High-strength wearable brick |
Publications (1)
Publication Number | Publication Date |
---|---|
CN101234887A true CN101234887A (en) | 2008-08-06 |
Family
ID=39918830
Family Applications (1)
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CNA2007100670056A Pending CN101234887A (en) | 2007-01-30 | 2007-01-30 | High-strength wearable brick |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101628806B (en) * | 2009-08-05 | 2012-06-27 | 郑州九环科贸有限公司 | Nanometer composite ceramic lining material and preparation method thereof |
CN103387397A (en) * | 2013-07-18 | 2013-11-13 | 浙江瑞泰耐火材料科技有限公司 | Wear-resistant brick with low thermal conductivity |
CN103951451A (en) * | 2014-05-06 | 2014-07-30 | 浙江华耐科技有限公司 | Method for preparing high-strength wear-resistant lining brick |
CN104844171A (en) * | 2015-04-27 | 2015-08-19 | 安徽省含山县顺天纺织有限公司 | Glass bead containing light alumina ceramic eyelet |
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 |
-
2007
- 2007-01-30 CN CNA2007100670056A patent/CN101234887A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101628806B (en) * | 2009-08-05 | 2012-06-27 | 郑州九环科贸有限公司 | Nanometer composite ceramic lining material and preparation method thereof |
CN103387397A (en) * | 2013-07-18 | 2013-11-13 | 浙江瑞泰耐火材料科技有限公司 | Wear-resistant brick with low thermal conductivity |
CN103387397B (en) * | 2013-07-18 | 2015-04-22 | 浙江瑞泰耐火材料科技有限公司 | Wear-resistant brick with low thermal conductivity |
CN103951451A (en) * | 2014-05-06 | 2014-07-30 | 浙江华耐科技有限公司 | Method for preparing high-strength wear-resistant lining brick |
CN103951451B (en) * | 2014-05-06 | 2015-10-07 | 浙江华耐科技有限公司 | The manufacture method of high-strength wearable lining brick |
CN104844171A (en) * | 2015-04-27 | 2015-08-19 | 安徽省含山县顺天纺织有限公司 | Glass bead containing light alumina ceramic eyelet |
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: 20080806 |