CN101948324A - Special silicon brick - Google Patents
Special silicon brick Download PDFInfo
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- CN101948324A CN101948324A CN 201010288841 CN201010288841A CN101948324A CN 101948324 A CN101948324 A CN 101948324A CN 201010288841 CN201010288841 CN 201010288841 CN 201010288841 A CN201010288841 A CN 201010288841A CN 101948324 A CN101948324 A CN 101948324A
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Abstract
The invention discloses a special silicon brick. The special silicon brick is prepared from a main material, an auxiliary material and a binding agent, wherein the main material comprises the following components in percentages by weight: 20-25 percent of bauxite chamotte with granularity of more than 2 mm and not less than 4 mm, 2-20 percent of bauxite chamotte with granularity of more than 1 mm and not less than 2 mm, 15-20 percent of bauxite chamotte with granularity of not more than 1 mm and 10-20 percent of silicon carbide with granularity of not more than 1 mm; the auxiliary material comprises the following components in percentages by weight: 5-10 percent of electrofused corindon thinner than 325 meshes, 5-10 percent of sialon thinner than 200 meshes, 5-10 percent of andalusite with granularity of not more than 1 mm, 3-5 percent of soft binding clay thinner than 200 meshes; and the binding agent is a spent pulping liquor at the concentration of 1.18-1.25 g/cm<3> and accounts for 4-4.5 percent of the sum of the weight of the main material and the auxiliary material. In the invention, by utilizing a strict scientific proportioning, high intensity ceramic combination is finally obtained for various materials, thereby the intensity of the product is greatly enhanced, the high temperature performance is stable and the high temperature wear resistance is better.
Description
Technical field
The present invention relates to the refractory brick field, especially relate to extraordinary siliceous mullite brick.
Background technology
Along with the fast development of cement industry and the successful Application of new dry process precal cination technique, for cement industry has injected huge vigor.At present, the cement kiln unit be who knows that throughput has developed into from 4000 tons/day of the past, 5000 tons/day and is up to 10000 tons of/day scales.The fast development of cement industry provides huge opportunities and challenges for refractory industry.At present, the many dependence on import of the transitional zone employed spinel brick in zone before and after the dry cement production line rotary kiln more than 5000 tons/day have increased the manufacturing cost of dry cement production line rotary kiln greatly.And work-ing lifes such as present domestic commercially available siliceous mullite brick, silicon mullite red brick, spinel brick are shorter, cause cement producer frequently to repair kiln, directly reduced the economic benefit and the production efficiency of cement producer.
Summary of the invention
The object of the invention is to provide a kind of extraordinary siliceous mullite brick of long service life.
For achieving the above object, the present invention can take following technical proposals:
Extraordinary siliceous mullite brick of the present invention, it is prepared from by following major ingredient, auxiliary material, wedding agent:
The weight percent proportioning of a, described major ingredient is:
The bauxitic clay grog:
4 mm 〉=granularity＞2mm, 20-25%; 2mm 〉=granularity＞1mm, 20-25%; Granularity≤1mm, 15-20%;
Silicon carbide: granularity≤1mm, 10-20%;
The weight percent proportioning of b, described auxiliary material is:
Fused corundom: 5-10%, 325 orders are with carefully; Sai Long: 5-10%, 200 orders are with carefully; Andaluzite: 1mm 〉=granularity, 5-10%; Soft bonding clay: 3-5%, 200 orders are with carefully;
C, wedding agent:
Spent pulping liquor, concentration are 1.18-1.25g/cm
3, be the 4-4.5% of above-mentioned major ingredient and auxiliary material weight sum;
D, preparation:
The first step, at first above-mentioned auxiliary material is carried out thorough mixing, mix with mixed major ingredient then, add described wedding agent and be mixed into pug;
Second the step, with the first step gained pug through the friction press moulding adobe more than 500 tons, cycle be not less than 1 the hammer/1 kilogram of material;
The 3rd step, the adobe that second step was made place totally-enclosed heat accumulating type moisture eliminator to carry out drying, and time of drying is more than 20 hours;
The 4th the step, with the 3rd the step dried adobe place tunnel furnace to fire, firing temperature is controlled in the 1430-1480 ℃ of scope, firing time got final product more than 50 hours.
The physical and chemical index of described bauxitic clay grog is: Al
2O
3〉=88%; Fe
2O
3≤ 1%; Impurity≤1%; Volume density 〉=3.3g/cm
3Water-intake rate≤1%;
The physical and chemical index of described silicon carbide is: SiC 〉=97% Fe
2O
3≤ 0.5%; F, C≤0.25%;
The physical and chemical index of described fused corundom is: Al
2O
3〉=99%; Fe
2O
3≤ 0.15%; Volume density 〉=3.5g/cm
3
The physical and chemical index of described andaluzite is: Al
2O
3〉=56%; Fe
2O
3≤ 0.5%; SiO
2≤ 40%; K, N≤0.2%;
The physical and chemical index of described soft bonding clay is: Al
2O
3〉=35%; SiO
2≤ 60%; Fe
2O
3≤ 2.0%;
Described match is grand to be β-Sialon or alpha-sialon.
Contrast according to the physicochemical property of the extraordinary siliceous mullite brick of the present invention preparation and existing siliceous mullite brick, silicon mullite red brick, spinel brick and to see the following form:
。
More than four kinds of products all be to be used for cement rotary kiln transition belt, as can be known from the above table, the extraordinary siliceous mullite brick of the present invention has characteristics such as intensity height, thermal shock resistance is better, high-temperature behavior is more stable.Work-ing life and currently available products improve more than 1/3, and compare its thermal conductivity with traditional product little, therefore have well energy-conservation effect.
The present invention adopts rigorous scientific matching, makes various materials finally obtain high-strength pottery combination, thereby the intensity of product is greatly improved, and has stable high-temperature performance, and high temperature abrasion resistance is better.By adding the grand component materials of match, under the condition of high temperature, make silicon carbide and bauxite mine in the product form the combination of good high-grade SiAlON ceramic between mutually, phase composite is highly stable under the condition of high temperature, and high temperature toughness is effectively improved, and makes the every excellent performance of product.By introducing the fused corundom phase component, further improve the component structure of matrix part, increase matrix ［ Al ］, ［ O ］, matrix structure is improved.By introducing andaluzite, utilize andaluzite that stability is preferably arranged under the condition of high temperature, the mullite structure body whisker of formation interts between each crystalline phase, thereby has improved the thermal shock resistance of product.
Embodiment
Embodiment 1:
Extraordinary siliceous mullite brick of the present invention is prepared from by following major ingredient, auxiliary material, wedding agent:
The weight percent proportioning of a, described major ingredient is:
The bauxitic clay grog:
Granularity 4mm, 20%; Granularity 2mm, 20%; Granularity 1mm, 15%;
The physical and chemical index of described bauxitic clay grog is: Al
2O
3〉=88%; Fe
2O
3≤ 1%; Impurity≤1%; Volume density 〉=3.3g/cm
3Water-intake rate≤1%;
Silicon carbide: granularity 1mm, 20%;
The physical and chemical index of described silicon carbide is: SiC 〉=97% Fe
2O
3≤ 0.5%; F, C≤0.25%;
The weight percent proportioning of b, described auxiliary material is:
Fused corundom: 5%, 325 order is with carefully;
The physical and chemical index of described fused corundom is: Al
2O
3〉=99%; Fe
2O
3≤ 0.15%; Volume density 〉=3.5g/cm
3
Alpha-sialon: 7%, 200 order is with carefully;
Andaluzite: granularity 1mm, 10%;
The physical and chemical index of described andaluzite is: Al
2O
3〉=56%; Fe
2O
3≤ 0.5%; SiO
2≤ 40%; K, N≤0.2%;
Soft bonding clay: 3%, 200 order is with carefully;
The physical and chemical index of described soft bonding clay is: Al
2O
3〉=35%; SiO
2≤ 60%; Fe
2O
3≤ 2.0%;
C, wedding agent:
Spent pulping liquor (commercially available), concentration are 1.18-1.25g/cm
3, be 4.5% of above-mentioned major ingredient and auxiliary material weight sum;
D, preparation:
The first step, at first above-mentioned auxiliary material is carried out thorough mixing, mix with mixed major ingredient then, add described wedding agent and be mixed into pug;
Second the step, with the first step gained pug through the friction press moulding adobe more than 500 tons, cycle be not less than 1 the hammer/1 kilogram of material;
The 3rd step, the adobe that second step was made place totally-enclosed heat accumulating type moisture eliminator to carry out drying, and time of drying is more than 20 hours;
The 4th the step, with the 3rd the step dried adobe place tunnel furnace to fire, firing temperature is controlled in the 1430-1480 ℃ of scope, firing time is more than 50 hours.
Embodiment 2:
Extraordinary siliceous mullite brick of the present invention is prepared from by following major ingredient, auxiliary material, wedding agent:
The weight percent proportioning of a, described major ingredient is:
The bauxitic clay grog:
Granularity 3mm, 22%; Granularity 1.5mm, 22%; Granularity 1mm, 16%;
The physical and chemical index of described bauxitic clay grog is: Al
2O
3〉=88%; Fe
2O
3≤ 1%; Impurity≤1%; Volume density 〉=3.3g/cm
3Water-intake rate≤1%;
Silicon carbide: granularity 0.88mm, 10%;
The physical and chemical index of described silicon carbide is: SiC 〉=97% Fe
2O
3≤ 0.5%; F, C≤0.25%;
The weight percent proportioning of b, described auxiliary material is:
Fused corundom: 8%, 325 order is with carefully;
The physical and chemical index of described fused corundom is: Al
2O
3〉=99%; Fe
2O
3≤ 0.15%; Volume density 〉=3.5g/cm
3
β-Sialon: 10%, 200 order is with carefully;
Andaluzite: granularity 1mm, 5%;
The physical and chemical index of described andaluzite is: Al
2O
3〉=56%; Fe
2O
3≤ 0.5%; SiO
2≤ 40%; K, N≤0.2%;
Soft bonding clay: 7%, 200 order is with carefully;
The physical and chemical index of described soft bonding clay is: Al
2O
3〉=35%; SiO
2≤ 60%; Fe
2O
3≤ 2.0%;
C, wedding agent:
Spent pulping liquor (commercially available), concentration are 1.18-1.25g/cm
3, be 4% of above-mentioned major ingredient and auxiliary material weight sum;
D, preparation:
According to embodiment 1 preparation.
Embodiment 3:
Extraordinary siliceous mullite brick of the present invention is prepared from by following major ingredient, auxiliary material, wedding agent:
The weight percent proportioning of a, described major ingredient is:
The bauxitic clay grog:
Granularity 2.1mm, 23%; Granularity 1.1mm, 25%; Granularity 0.6mm, 19%;
The physical and chemical index of described bauxitic clay grog is: Al
2O
3〉=88%; Fe
2O
3≤ 1%; Impurity≤1%; Volume density 〉=3.3g/cm
3Water-intake rate≤1%;
Silicon carbide: granularity 0.5mm, 10%;
The physical and chemical index of described silicon carbide is: SiC 〉=97% Fe
2O
3≤ 0.5%; F, C≤0.25%;
The weight percent proportioning of b, described auxiliary material is:
Fused corundom: 9%, 325 order is with carefully;
The physical and chemical index of described fused corundom is: Al
2O
3〉=99%; Fe
2O
3≤ 0.15%; Volume density 〉=3.5g/cm
3
β-Sialon or alpha-sialon: 5%, 200 order is with carefully;
Andaluzite: granularity 0.5mm, 6%;
The physical and chemical index of described andaluzite is: Al
2O
3〉=56%; Fe
2O
3≤ 0.5%; SiO
2≤ 40%; K, N≤0.2%;
Soft bonding clay: 3%, 200 order is with carefully; The physical and chemical index of described soft bonding clay is: Al
2O
3〉=35%; SiO
2≤ 60%; Fe
2O
3≤ 2.0%;
C, wedding agent:
Spent pulping liquor (commercially available), concentration are 1.18-1.25g/cm
3, be 4.3% of above-mentioned major ingredient and auxiliary material weight sum;
D, preparation:
According to embodiment 1 preparation.
Claims (2)
1. extraordinary siliceous mullite brick, it is characterized in that: it is prepared from by following major ingredient, auxiliary material, wedding agent:
The weight percent proportioning of a, described major ingredient is:
The bauxitic clay grog:
4 mm 〉=granularity＞2mm, 20-25%; 2mm 〉=granularity＞1mm, 20-25%; Granularity≤1mm, 15-20%;
Silicon carbide: granularity≤1mm, 10-20%;
The weight percent proportioning of b, described auxiliary material is:
Fused corundom: 5-10%, 325 orders are with carefully; Sai Long: 5-10%, 200 orders are with carefully; Andaluzite: 1mm 〉=granularity, 5-10%; Soft bonding clay: 3-5%, 200 orders are with carefully;
C, wedding agent:
Spent pulping liquor, concentration are 1.18-1.25g/cm
3, be the 4-4.5% of above-mentioned major ingredient and auxiliary material weight sum;
D, preparation:
The first step, at first above-mentioned auxiliary material is carried out thorough mixing, mix with mixed major ingredient then, add described wedding agent and be mixed into pug;
Second the step, with the first step gained pug through the friction press moulding adobe more than 500 tons, cycle be not less than 1 the hammer/1 kilogram of material;
The 3rd step, the adobe that second step was made place totally-enclosed heat accumulating type moisture eliminator to carry out drying, and time of drying is more than 20 hours;
The 4th the step, with the 3rd the step dried adobe place tunnel furnace to fire, firing temperature is controlled in the 1430-1480 ℃ of scope, firing time got final product more than 50 hours.
2. extraordinary siliceous mullite brick according to claim 1 is characterized in that:
The physical and chemical index of described bauxitic clay grog is: Al
2O
3〉=88%; Fe
2O
3≤ 1%; Impurity≤1%; Volume density 〉=3.3g/cm
3Water-intake rate≤1%;
The physical and chemical index of described silicon carbide is: SiC 〉=97% Fe
2O
3≤ 0.5%; F, C≤0.25%;
The physical and chemical index of described fused corundom is: Al
2O
3〉=99%; Fe
2O
3≤ 0.15%; Volume density 〉=3.5g/cm
3
The physical and chemical index of described andaluzite is: Al
2O
3〉=56%; Fe
2O
3≤ 0.5%; SiO
2≤ 40%; K, N≤0.2%;
The physical and chemical index of described soft bonding clay is: Al
2O
3〉=35%; SiO
2≤ 60%; Fe
2O
3≤ 2.0%;
Described match is grand to be β-Sialon or alpha-sialon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010288841 CN101948324A (en) | 2010-09-21 | 2010-09-21 | Special silicon brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010288841 CN101948324A (en) | 2010-09-21 | 2010-09-21 | Special silicon brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101948324A true CN101948324A (en) | 2011-01-19 |
Family
ID=43451974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010288841 Pending CN101948324A (en) | 2010-09-21 | 2010-09-21 | Special silicon brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101948324A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219530A (en) * | 2011-03-14 | 2011-10-19 | 无锡兴达节能科技股份有限公司 | Silicon mullite brick and preparation method thereof |
| CN102584287A (en) * | 2012-02-03 | 2012-07-18 | 郑州中本窑炉材料有限公司 | Silicon mullite iron brick |
| CN102659440A (en) * | 2012-06-02 | 2012-09-12 | 长兴盛华耐火材料有限公司 | Light silicon carbide-mullite-andalusite brick and manufacturing method for same |
| CN103833386A (en) * | 2012-12-04 | 2014-06-04 | 江苏顺星耐火科技有限公司 | High-wear-resistance Guimo brick and preparation method thereof |
| CN103833387A (en) * | 2012-12-04 | 2014-06-04 | 江苏顺星耐火科技有限公司 | High-wear-resistance red Guimo brick and preparation technique thereof |
| CN104649690A (en) * | 2014-01-02 | 2015-05-27 | 岑溪市新建球陶瓷有限公司 | Preparation method of silicon and mullite brick |
| CN107698247A (en) * | 2017-10-30 | 2018-02-16 | 孝义市和中兴矿产有限公司 | A kind of ferrosilicon bag half lightweight siliceous mullite brick and preparation method thereof |
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| JP2001010862A (en) * | 1999-05-24 | 2001-01-16 | Mrcc Inc | Vitreous carbon composite, its process and usage thereof |
| CN101045635A (en) * | 2007-03-22 | 2007-10-03 | 武汉科技大学 | Ceramic Al203SiC refractory and preparation method thereof |
| CN101712551A (en) * | 2009-10-28 | 2010-05-26 | 郑州真金耐火材料有限责任公司 | Method for producing silicon mullite abrasive brick |
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2010
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001010862A (en) * | 1999-05-24 | 2001-01-16 | Mrcc Inc | Vitreous carbon composite, its process and usage thereof |
| CN101045635A (en) * | 2007-03-22 | 2007-10-03 | 武汉科技大学 | Ceramic Al203SiC refractory and preparation method thereof |
| CN101712551A (en) * | 2009-10-28 | 2010-05-26 | 郑州真金耐火材料有限责任公司 | Method for producing silicon mullite abrasive brick |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219530A (en) * | 2011-03-14 | 2011-10-19 | 无锡兴达节能科技股份有限公司 | Silicon mullite brick and preparation method thereof |
| CN102219530B (en) * | 2011-03-14 | 2013-08-14 | 无锡兴达节能科技股份有限公司 | Silicon mullite brick and preparation method thereof |
| CN102584287A (en) * | 2012-02-03 | 2012-07-18 | 郑州中本窑炉材料有限公司 | Silicon mullite iron brick |
| CN102659440A (en) * | 2012-06-02 | 2012-09-12 | 长兴盛华耐火材料有限公司 | Light silicon carbide-mullite-andalusite brick and manufacturing method for same |
| CN102659440B (en) * | 2012-06-02 | 2014-10-29 | 长兴盛华耐火材料有限公司 | Light silicon carbide-mullite-andalusite brick and manufacturing method for same |
| CN103833386A (en) * | 2012-12-04 | 2014-06-04 | 江苏顺星耐火科技有限公司 | High-wear-resistance Guimo brick and preparation method thereof |
| CN103833387A (en) * | 2012-12-04 | 2014-06-04 | 江苏顺星耐火科技有限公司 | High-wear-resistance red Guimo brick and preparation technique thereof |
| CN103833387B (en) * | 2012-12-04 | 2016-01-20 | 江苏顺星耐火科技有限公司 | High abrasion silicon mullite red brick and preparation technology thereof |
| CN104649690A (en) * | 2014-01-02 | 2015-05-27 | 岑溪市新建球陶瓷有限公司 | Preparation method of silicon and mullite brick |
| CN107698247A (en) * | 2017-10-30 | 2018-02-16 | 孝义市和中兴矿产有限公司 | A kind of ferrosilicon bag half lightweight siliceous mullite brick and preparation method thereof |
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Owner name: ZHENGZHOU RUITAI REFRACTORY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HE NAN HUOBAO FIREPROOF MATERIAL CO., LTD. Effective date: 20120306 |
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Effective date of registration: 20120306 Address after: 452374, Xinmi City, the town of Yue Village Trident (Zhuang Zi Gate Village) Applicant after: Zhengzhou Ruitai Refractory Materials Technology Co., Ltd. Address before: 452374 Yue villages of Xinmi city Henan province Zhengzhou City three fork Applicant before: Henan Huobao Refractory Co., Ltd. |
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Application publication date: 20110119 |