CN100391902C - Silicon carbide corundum pouring material - Google Patents
Silicon carbide corundum pouring material Download PDFInfo
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- CN100391902C CN100391902C CNB2004100146584A CN200410014658A CN100391902C CN 100391902 C CN100391902 C CN 100391902C CN B2004100146584 A CNB2004100146584 A CN B2004100146584A CN 200410014658 A CN200410014658 A CN 200410014658A CN 100391902 C CN100391902 C CN 100391902C
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- silicon carbide
- corundum
- cement
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Abstract
A silicon carbide corundum casting material belongs to the field of refractory materials. The present invention is prepared from first grade white corundum, fine corundum powder, Al2 O3 micropowder, SiO2 micropowder, fine silicon carbide powder, cement, sodium triphosphate, steel fiber and water reducing agent rare earth according to proportion. The refractory casting material has the advantages of high strength, high refractability and high abrasive resistance. The present invention is suitable for building various high-temperature industrial furnaces and kilns, and has the characteristics of high compactness, high strength, high abrasive resistance, high heat impact resistance, little linear variation, unsplit surfaces, no pulverization, high stripping resistance, long service life, etc. for kilns (5000T) in large-sized cement plants with a dry method.
Description
Technical field
The present invention relates to a kind of refractory materials, be meant the corundum castable that a kind of hot strength is good especially.
Technical background
In the particularly large-scale nsp kiln of new type dry kiln,, also to stand the chilling impact that fault is stopped kiln, not only higher heat resistance will be arranged to the kilneye mould material, but also alkali resistance, wear resistance and thermal shock resistance preferably will be arranged because of the thermal load height of kilneye.Generally, the high alumina brick of antiwear heat resisting shake or steel fiber enhanced mould material and low cement mo(u)ld high alumina castable are applicable to kilneye, but on the kiln large-scale of kilneye extreme temperatures, then should adopt common or steel fiber enhanced corundum pouring material, the low cement deposit material of existing corundum matter is in use because the rotary kiln start-stop is frequent, mould material bursts peels off seriously, and work-ing life is only about 5 months.
Summary of the invention
The present invention is just in order to overcome above-mentioned deficiency, a kind of silicon carbide corundum castable that is applicable to kilneye is provided, by silicon carbide and corundum aggregate, corundum fine powder, and form as the cement of setting accelerator, its wear resistance is good, early strength is higher, medium temperature intensity does not descend, and it is more that number of times is stablized in thermal shock, does not explode and does not split, be convenient to construction, can reach 12 months work-ing life.Specifically implement like this: the silicon carbide corundum castable is characterized in that the component proportioning is: (weight %):
One-level white fused alumina: 8～5mm 17～25%
5～3mm 6～10％
3～1mm 12～20％
1～0mm 15～24％
Corundum 320 order fine powders 10～16%
Al
2O
3Micro mist 3～7%
SiO
2Micro mist 2～5%
Carbide fine powder 2～5%
Cement 5～10%
Tripoly phosphate sodium STPP 0.1～0.5%
Steel fiber 2～4%
Water reducer rare earth 0.05～0.3%
The cement of indication is pure calcium aluminate cement or superelevation aluminium electric smelting cement among the present invention.
In order further to increase the intensity of mould material, also can add the zircon sand of 2-5% in the component of the present invention.
The technical indicator that silicon carbide corundum castable of the present invention reaches is listed in the table 1.
Table 1
Listed measured value shows from table, refractory castable of the present invention has higher intensity, refractoriness and abrasive wear resistance, be applicable to building by laying bricks or stones of various hot industry stoves, it is at large-scale cement factory dry method kiln (5000T) kilneye, has that degree of compactness is good, intensity is high, wear resistance good, thermal shock number is many, line changes little, characteristics such as do not ftracture in the surface, not efflorescence, antistripping, long service life.
Embodiment
Embodiment 1, and the proportioning of mould material is: one-level white fused alumina: 8～5mm 19.8%, 5～3mm 6%, 3～1mm16%, 1～0mm 21%, and corundum 320 order fine powders: 13.5%, Al
2O
3Micro mist: 5%, SiO
2Micro mist: 3%, carbide fine powder: 4%, pure calcium aluminate cement: 7%, tripoly phosphate sodium STPP: 0.1%, steel fiber: 2.5%, the high efficiency water reducing agent rare earth: 0.1%, zircon sand: 2%.
Embodiment 2, and the proportioning of mould material is: one-level white fused alumina: 8～5mm 17%, 5～3mm 10%, 3～1mm15%, 1～0mm 20%, and corundum 320 order fine powders: 14%, Al
2O
3Micro mist: 6%, carbide fine powder: 3.5%, SiO
2Micro mist: 4.6%, pure calcium aluminate cement: 7%, tripoly phosphate sodium STPP: 0.2%, steel fiber: 2.5%, high efficiency water reducing agent rare earth: 0.2%.
Embodiment 3, and the proportioning of mould material is: one-level white fused alumina: 8～5mm 22%, 5～3mm 7%, 3～1mm12%, 1～0mm 19%, and corundum 320 order fine powders: 15%, Al
2O
3Micro mist: 4%, SiO
2Micro mist: 3.3%, zircon sand: 3%, carbide fine powder: 4%, superelevation aluminium electric smelting cement: 8%, tripoly phosphate sodium STPP: 0.15%, steel fiber: 2.5%, high efficiency water reducing agent rare earth: 0.05%.
The production technique of above-mentioned silicon carbide corundum castable is as follows:
The silicon carbide and corundum aggregate, the corundum fine powder that are crushed to designated size are stirred in machine,massing, after other component that the adding proportioning is good continues to stir in machine,massing, the powerful stirring of mixed solution that adds suitable quantity of water again, the material that stirs is being built the stove in-place forming, make firm by ramming with vibrating head, after conventional maintenance and baking, use.The technical indicator of the silicon carbide corundum castable moulding that above-mentioned 3 kinds of embodiment allot after maintenance and baking sees Table 2.
Table 2
Claims (3)
1. silicon carbide corundum castable is characterized in that the component proportioning is: (weight %):
One-level white fused alumina: 8～5mm 17～25%
5～3mm 6～10％
3～1mm 12～20％
1～0mm 15～24％
Corundum 320 order fine powders 10～16%
Al
2O
3Micro mist 3～7%
SiO
2Micro mist 2～5%
Carbide fine powder 2～5%
Cement 5～10%
Tripoly phosphate sodium STPP 0.1～0.5%
Steel fiber 2～4%
Water reducer rare earth 0.05～0.3%.
2. silicon carbide corundum castable according to claim 1 is characterized in that cement is pure calcium aluminate cement or superelevation aluminium electric smelting cement.
3. silicon carbide corundum castable according to claim 1 and 2 is characterized in that also being added with in the component zircon sand of 2-5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100146584A CN100391902C (en) | 2004-04-15 | 2004-04-15 | Silicon carbide corundum pouring material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100146584A CN100391902C (en) | 2004-04-15 | 2004-04-15 | Silicon carbide corundum pouring material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1683283A CN1683283A (en) | 2005-10-19 |
| CN100391902C true CN100391902C (en) | 2008-06-04 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100146584A Expired - Fee Related CN100391902C (en) | 2004-04-15 | 2004-04-15 | Silicon carbide corundum pouring material |
Country Status (1)
| Country | Link |
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| CN (1) | CN100391902C (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100467426C (en) * | 2006-07-07 | 2009-03-11 | 宜兴市泰科耐火材料有限公司 | Silicon carbide crusting resistant pouring material and preparation method thereof |
| CN101747053B (en) * | 2009-12-24 | 2012-08-08 | 中钢集团洛阳耐火材料研究院有限公司 | Method for preparing aluminum-liquid wetting resisting silicon carbide castable |
| CN101935221A (en) * | 2010-08-24 | 2011-01-05 | 中钢集团洛阳耐火材料研究院有限公司 | Low apparent porosity corundum refractory castable |
| CN101921128B (en) * | 2010-09-08 | 2012-09-05 | 武汉钢铁(集团)公司 | Pouring material for lime rotary kiln |
| CN102557674A (en) * | 2010-12-10 | 2012-07-11 | 河南省新密市青屏耐火材料有限责任公司 | High-thermal conductivity high-strength fireproof castable |
| CN102417360B (en) * | 2011-09-01 | 2013-03-13 | 周涛 | Silicon carbide ramming material with high abrasion resistance and application thereof |
| CN102503472B (en) * | 2011-10-26 | 2013-06-05 | 河南省耕生耐火材料有限公司 | SiC (silicon carbide)-toughened corundum prefabricated part by means of in-situ formation and preparation method for same |
| CN102584257A (en) * | 2011-10-26 | 2012-07-18 | 宜兴市顺星耐磨浇注材料厂 | Pouring material for sunk fence and preparation method thereof |
| CN102515792B (en) * | 2011-11-30 | 2014-02-26 | 浙江锦诚耐火材料有限公司 | High-strength, wear-resistant and quick-change preform |
| CN102603339B (en) * | 2012-03-31 | 2013-09-04 | 芜湖县天海耐火炉料有限公司 | Fireproof castable |
| CN104086120B (en) * | 2014-07-31 | 2016-02-10 | 宁国市鑫煌矿冶配件制造有限公司 | A kind of corrosion-resistant high hardness high toughness ball mill grinding element |
| CN104788105B (en) * | 2015-03-17 | 2017-01-25 | 北京利尔高温材料股份有限公司 | Desulphurization gun castable for nickel iron ladles, and preparation method and application thereof |
| CN104829245A (en) * | 2015-04-10 | 2015-08-12 | 浙江锦诚耐火材料有限公司 | Kilneye prefabricated component for cement kiln |
| CN106588053A (en) * | 2016-12-19 | 2017-04-26 | 攀枝花钢城集团有限公司 | Castable for blast furnace slag spout |
| CN107352985A (en) * | 2017-07-19 | 2017-11-17 | 合肥铭佑高温技术有限公司 | A kind of glass furnace cooling section Corundum composite brick |
| CN108178646A (en) * | 2018-02-11 | 2018-06-19 | 南京联合荣大工程材料有限责任公司 | Wear-resistant castable for metallurgical residues processing technique and preparation method thereof |
| CN109608211A (en) * | 2018-12-21 | 2019-04-12 | 武汉钢铁集团耐火材料有限责任公司 | Hot-metal bottle aluminium silicon carbide castable and preparation method thereof |
| CN110066181B (en) * | 2019-03-25 | 2021-07-13 | 宜兴市泰科耐火材料有限公司 | Corundum carbonized silicon steel fiber castable |
| CN110903077A (en) * | 2019-12-20 | 2020-03-24 | 攀枝花钢城集团有限公司 | Castable for ladle cover of steelmaking tundish |
| CN114163222B (en) * | 2021-12-01 | 2022-08-30 | 北京金隅通达耐火技术有限公司 | Titanium composite corundum silicon carbide wear-resistant castable for cement kiln mouths and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030095A (en) * | 1988-05-09 | 1989-01-04 | 冶金工业部建筑研究总院 | Refractory Castables for BF Troughs and Runners |
| EP0579309A2 (en) * | 1992-07-14 | 1994-01-19 | PELT & HOOYKAAS B.V. | Method for preparing a cement base material, and cement composition containing this base material |
| CN1465548A (en) * | 2002-06-28 | 2004-01-07 | 重庆钢铁(集团)有限责任公司 | Rafractory for molten iron discharge channel of blast furnace |
-
2004
- 2004-04-15 CN CNB2004100146584A patent/CN100391902C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030095A (en) * | 1988-05-09 | 1989-01-04 | 冶金工业部建筑研究总院 | Refractory Castables for BF Troughs and Runners |
| EP0579309A2 (en) * | 1992-07-14 | 1994-01-19 | PELT & HOOYKAAS B.V. | Method for preparing a cement base material, and cement composition containing this base material |
| CN1465548A (en) * | 2002-06-28 | 2004-01-07 | 重庆钢铁(集团)有限责任公司 | Rafractory for molten iron discharge channel of blast furnace |
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| Publication number | Publication date |
|---|---|
| CN1683283A (en) | 2005-10-19 |
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Granted publication date: 20080604 Termination date: 20190415 |