CN105218118A - A kind of novel from silicon carbide Gunning refractory - Google Patents
A kind of novel from silicon carbide Gunning refractory Download PDFInfo
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- CN105218118A CN105218118A CN201510716418.7A CN201510716418A CN105218118A CN 105218118 A CN105218118 A CN 105218118A CN 201510716418 A CN201510716418 A CN 201510716418A CN 105218118 A CN105218118 A CN 105218118A
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Abstract
The invention discloses a kind of novel from silicon carbide Gunning refractory, adopt the materials such as bauxite chamotte, Brown Alundum, silicon carbide, silicon oxide, Si micro mist, carbon materials and ultralow aluminous cement to make.At high temperature, the Si powder in repair material and the generated in-situ fibrous SiC of carbon materials intert in the space of corundum skeleton structure, fill pore, the principal passage of blocking slag penetration, are conducive to improving resistance to slag corrosion.The SiC raw material added adds the non-oxide content in matrix of materials, is conducive to the resistance to fouling improving material further.The present invention adopts Wet spray techniques to construct, and construction quality and efficiency aspect are obtained for raising.The present invention can make the resistance to slag corrosion of the iron runner after repairing, iron-resistant water erosion improves and iron influx improves, and chemistry-resistant characteristic is strong, good thermal shock stability, long service life.
Description
[technical field]
The present invention relates to the technical field of Metal smelting, particularly a kind of novel technical field from silicon carbide Gunning refractory.
[background technology]
Blast furnace iron outlet groove carries discharge that is blast-melted and slag, is related to the steady running of blast furnace, and the quality of its refractory materials receives the concern of refractory materials worker and ironworks user always, especially the mould material of main iron hook, and research is a lot.But in daily production, also use much for the iron runner of blast furnace, Zhigou, slag runner, iron mouth repairing, have a snack, assorted mud that the high-temperature service such as maintenance needs repairs materials, these material prices are low, carry no weight, but have impact to production.The maintenance ditch material material used at present is generally pure aluminium silicate material, adopts without the alumina aggregate used, adds well as clay fines and coke powder, pitch etc. are formulated.It is low to there is ultimate compression strength in it, and the product of some manufacturer production only has 5MPa, and erosion-resisting characteristics is poor, and carbon content is large, and work-ing life, short grade was not enough, and production cost is high.
[summary of the invention]
Object of the present invention solves the problems of the prior art exactly, propose a kind of novel from silicon carbide Gunning refractory, the resistance to slag corrosion of the iron runner after repairing, iron-resistant water erosion can be made to improve and iron influx raising, chemistry-resistant characteristic is strong, good thermal shock stability, long service life.
For achieving the above object, the present invention proposes a kind of novel from silicon carbide Gunning refractory, comprise following component and the mass ratio of each component is:
As preferably, described bauxite chamotte is the fine powder of particle < 0.625mm, the purity of described bauxite chamotte is greater than 95%, described Brown Alundum raw material is the fine powder of particle < 0.065mm, the purity of described Brown Alundum raw material is greater than 90%, described sic raw material is the fine powder of particle < 0.085mm, the purity of described sic raw material is greater than 92%, and described ultralow aluminous cement raw material is the fine powder of particle < 0.815mm.
As preferably, described explosion-proof fiber is polyurethanes fiber.
As preferably, the mass ratio of described each component is: bauxite chamotte: 3 parts; Brown Alundum: 30 parts; Graphite microparticles: 10 parts; Alumina powder: 8 parts; Pure Silicon Metal micro mist: 5 parts; Silicon carbide: 10 parts; Ultralow aluminous cement: 20 parts; Explosion-proof fiber: 2 parts; Ultrafine silica powder: 5 parts; Sodium hexametaphosphate 99: 3 parts.
As preferably, the mass ratio of described each component is: bauxite chamotte: 30 parts; Brown Alundum: 25 parts; Graphite microparticles: 12 parts; Alumina powder: 8 parts; Pure Silicon Metal micro mist: 10 parts; Silicon carbide: 12 parts; Ultralow aluminous cement: 25 parts; Explosion-proof fiber: 2 parts; Ultrafine silica powder: 7 parts; Sodium hexametaphosphate 99: 3 parts.
As preferably, the mass ratio of described each component is: bauxite chamotte: 35 parts; Brown Alundum: 20 parts; Graphite microparticles: 15 parts; Alumina powder: 10 parts; Pure Silicon Metal micro mist: 8 parts; Silicon carbide: 15 parts; Ultralow aluminous cement: 30 parts; Explosion-proof fiber: 3 parts; Ultrafine silica powder: 10 parts; Sodium hexametaphosphate 99: 4 parts.
Beneficial effect of the present invention: the present invention is the high-quality repair material adopting the materials such as bauxite chamotte, Brown Alundum, silicon carbide, silicon oxide, Si micro mist, carbon materials and ultralow aluminous cement to make.At high temperature, the Si powder in repair material and the generated in-situ fibrous SiC of carbon materials intert in the space of corundum skeleton structure, fill pore, the principal passage of blocking slag penetration, are conducive to improving resistance to slag corrosion.The SiC raw material added adds the non-oxide content in matrix of materials, is conducive to the resistance to fouling improving material further.CaO in the SiO generated after SiC high temperature oxidation and slag and the Al in matrix of materials
2o
3, reaction generates low melt-phase CAS
2make material gradually by corrode.Slag and lime feldspar also can from erosion layer endosmosises, but can run into increasing SiC and stops, and corrode the corundum in granules in layer and the CaO in slag and react and give birth to CaO6A1
2o
3, its fusing point is 1830 DEG C, is fixed up on corundum in granules top layer, does not penetrate into further in material, strengthens the stability of structure, improves resistance to slag corrosion.This product adopts Wet spray techniques construction, and construction quality and efficiency aspect are obtained for raising.The present invention can make the resistance to slag corrosion of the iron runner after repairing, iron-resistant water erosion improves and iron influx improves, and chemistry-resistant characteristic is strong, good thermal shock stability, long service life.
Feature of the present invention and advantage will be described in detail by embodiment.
[embodiment]
The present invention is a kind of novel from silicon carbide Gunning refractory, comprises following component and the mass ratio of each component is:
Described bauxite chamotte is the fine powder of particle < 0.625mm, the purity of described bauxite chamotte is greater than 95%, described Brown Alundum raw material is the fine powder of particle < 0.065mm, the purity of described Brown Alundum raw material is greater than 90%, described sic raw material is the fine powder of particle < 0.085mm, the purity of described sic raw material is greater than 92%, and described ultralow aluminous cement raw material is the fine powder of particle < 0.815mm.
Described explosion-proof fiber is polyurethanes fiber.
Embodiment one: bauxite chamotte: 3 parts; Brown Alundum: 30 parts; Graphite microparticles: 10 parts; Alumina powder: 8 parts; Pure Silicon Metal micro mist: 5 parts; Silicon carbide: 10 parts; Ultralow aluminous cement: 20 parts; Explosion-proof fiber: 2 parts; Ultrafine silica powder: 5 parts; Sodium hexametaphosphate 99: 3 parts.
Embodiment two: bauxite chamotte: 30 parts; Brown Alundum: 25 parts; Graphite microparticles: 12 parts; Alumina powder: 8 parts; Pure Silicon Metal micro mist: 10 parts; Silicon carbide: 12 parts; Ultralow aluminous cement: 25 parts; Explosion-proof fiber: 2 parts; Ultrafine silica powder: 7 parts; Sodium hexametaphosphate 99: 3 parts.
Embodiment three: bauxite chamotte: 35 parts; Brown Alundum: 20 parts; Graphite microparticles: 15 parts; Alumina powder: 10 parts; Pure Silicon Metal micro mist: 8 parts; Silicon carbide: 15 parts; Ultralow aluminous cement: 30 parts; Explosion-proof fiber: 3 parts; Ultrafine silica powder: 10 parts; Sodium hexametaphosphate 99: 4 parts.
The present invention is the high-quality repair material adopting the materials such as bauxite chamotte, Brown Alundum, silicon carbide, silicon oxide, Si micro mist, carbon materials and ultralow aluminous cement to make.At high temperature, the Si powder in repair material and the generated in-situ fibrous SiC of carbon materials intert in the space of corundum skeleton structure, fill pore, the principal passage of blocking slag penetration, are conducive to improving resistance to slag corrosion.The SiC raw material added adds the non-oxide content in matrix of materials, is conducive to the resistance to fouling improving material further.CaO in the SiO generated after SiC high temperature oxidation and slag and the Al in matrix of materials
2o
3, reaction generates low melt-phase CAS
2make material gradually by corrode.Slag and lime feldspar also can from erosion layer endosmosises, but can run into increasing SiC and stops, and corrode the corundum in granules in layer and the CaO in slag and react and give birth to CaO6A1
2o
3, its fusing point is 1830 DEG C, is fixed up on corundum in granules top layer, does not penetrate into further in material, strengthens the stability of structure, improves resistance to slag corrosion.The present invention adopts Wet spray techniques to construct, and construction quality and efficiency aspect are obtained for raising.The present invention can make the resistance to slag corrosion of the iron runner after repairing, iron-resistant water erosion improves and iron influx improves, and chemistry-resistant characteristic is strong, good thermal shock stability, long service life.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (6)
1. novel from a silicon carbide Gunning refractory, it is characterized in that: comprise following component and the mass ratio of each component is:
2. as claimed in claim 1 a kind of novel from silicon carbide Gunning refractory, it is characterized in that: described bauxite chamotte is the fine powder of particle < 0.625mm, the purity of described bauxite chamotte is greater than 95%, described Brown Alundum raw material is the fine powder of particle < 0.065mm, the purity of described Brown Alundum raw material is greater than 90%, described sic raw material is the fine powder of particle < 0.085mm, the purity of described sic raw material is greater than 92%, described ultralow aluminous cement raw material is the fine powder of particle < 0.815mm.
3. as claimed in claim 1 a kind of novel from silicon carbide Gunning refractory, it is characterized in that: described explosion-proof fiber is polyurethanes fiber.
4. as claimed in claim 1 a kind of novel from silicon carbide Gunning refractory, it is characterized in that: comprise following component and the fraction scale of each component is: bauxite chamotte: 3 parts; Brown Alundum: 30 parts; Graphite microparticles: 10 parts; Alumina powder: 8 parts; Pure Silicon Metal micro mist: 5 parts; Silicon carbide: 10 parts; Ultralow aluminous cement: 20 parts; Explosion-proof fiber: 2 parts; Ultrafine silica powder: 5 parts; Sodium hexametaphosphate 99: 3 parts.
5. as claimed in claim 1 a kind of novel from silicon carbide Gunning refractory, it is characterized in that: comprise following component and the fraction scale of each component is: bauxite chamotte: 30 parts; Brown Alundum: 25 parts; Graphite microparticles: 12 parts; Alumina powder: 8 parts; Pure Silicon Metal micro mist: 10 parts; Silicon carbide: 12 parts; Ultralow aluminous cement: 25 parts; Explosion-proof fiber: 2 parts; Ultrafine silica powder: 7 parts; Sodium hexametaphosphate 99: 3 parts.
6. as claimed in claim 1 a kind of novel from silicon carbide Gunning refractory, it is characterized in that: comprise following component and the fraction scale of each component is: bauxite chamotte: 35 parts; Brown Alundum: 20 parts; Graphite microparticles: 15 parts; Alumina powder: 10 parts; Pure Silicon Metal micro mist: 8 parts; Silicon carbide: 15 parts; Ultralow aluminous cement: 30 parts; Explosion-proof fiber: 3 parts; Ultrafine silica powder: 10 parts; Sodium hexametaphosphate 99: 4 parts.
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| CN201510716418.7A CN105218118A (en) | 2015-10-29 | 2015-10-29 | A kind of novel from silicon carbide Gunning refractory |
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| CN201510716418.7A CN105218118A (en) | 2015-10-29 | 2015-10-29 | A kind of novel from silicon carbide Gunning refractory |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244931A (en) * | 2017-05-31 | 2017-10-13 | 长兴华悦耐火材料厂 | A kind of cement kiln lining self-bonding wet type gunning refractory |
| CN107879754A (en) * | 2017-12-11 | 2018-04-06 | 宁波爱克创威新材料科技有限公司 | Carborundum ramming mass and preparation method thereof |
| CN109437947A (en) * | 2018-12-27 | 2019-03-08 | 武汉科技大学 | A kind of whisker self-bonding SiC refractory material and preparation method thereof |
| CN115872730A (en) * | 2022-11-28 | 2023-03-31 | 湖北兴龙高温节能材料有限公司 | Anti-slag-sticking thermal spray repair material for foundry ladle and preparation method and use method thereof |
Citations (3)
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| CN101591179A (en) * | 2008-05-30 | 2009-12-02 | 北京通达耐火技术股份有限公司 | A kind of main trough of blast furnace slag line Al 2O 3The preparation method of-SiC-C mould material |
| CN101863671A (en) * | 2010-05-07 | 2010-10-20 | 武汉钢铁(集团)公司 | Slag adhesion resistant gunning refractory for converter |
| CN103922770A (en) * | 2014-04-01 | 2014-07-16 | 浙江长兴宝晟炉料有限公司 | Self-flowing castable with waste blast furnace main runner material as main raw material and making method of self-flowing castable |
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2015
- 2015-10-29 CN CN201510716418.7A patent/CN105218118A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101591179A (en) * | 2008-05-30 | 2009-12-02 | 北京通达耐火技术股份有限公司 | A kind of main trough of blast furnace slag line Al 2O 3The preparation method of-SiC-C mould material |
| CN101863671A (en) * | 2010-05-07 | 2010-10-20 | 武汉钢铁(集团)公司 | Slag adhesion resistant gunning refractory for converter |
| CN103922770A (en) * | 2014-04-01 | 2014-07-16 | 浙江长兴宝晟炉料有限公司 | Self-flowing castable with waste blast furnace main runner material as main raw material and making method of self-flowing castable |
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| Title |
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| G.B.罗森伯格: "《美国耐火材料》", 30 November 1981, 冶金工业出版社 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244931A (en) * | 2017-05-31 | 2017-10-13 | 长兴华悦耐火材料厂 | A kind of cement kiln lining self-bonding wet type gunning refractory |
| CN107879754A (en) * | 2017-12-11 | 2018-04-06 | 宁波爱克创威新材料科技有限公司 | Carborundum ramming mass and preparation method thereof |
| CN109437947A (en) * | 2018-12-27 | 2019-03-08 | 武汉科技大学 | A kind of whisker self-bonding SiC refractory material and preparation method thereof |
| CN115872730A (en) * | 2022-11-28 | 2023-03-31 | 湖北兴龙高温节能材料有限公司 | Anti-slag-sticking thermal spray repair material for foundry ladle and preparation method and use method thereof |
| CN115872730B (en) * | 2022-11-28 | 2023-11-07 | 湖北兴龙高温节能材料有限公司 | Slag-sticking-preventing thermal-state gunning material for ladle, and preparation method and use method thereof |
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Application publication date: 20160106 |