CN101186517A - Corundum-silicon nitride-silicon carbide composite pouring material - Google Patents
Corundum-silicon nitride-silicon carbide composite pouring material Download PDFInfo
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- CN101186517A CN101186517A CNA2007101930116A CN200710193011A CN101186517A CN 101186517 A CN101186517 A CN 101186517A CN A2007101930116 A CNA2007101930116 A CN A2007101930116A CN 200710193011 A CN200710193011 A CN 200710193011A CN 101186517 A CN101186517 A CN 101186517A
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Abstract
The invention discloses a corundum-silicon nitride-silicon carbide compound castable used for a blast tuyere zone of an ironmaking blast furnace. The corundum, the silicon nitride, the silicon carbide, aluminate cement, aluminum powder, silicon metal, ultrafine silica powder, alumina powder and polypropylene fiber are mixed to form the castable. Residual brick of compound brown corundum refractory brick can be fast poured and repaired at the blast tuyere zone of the ironmaking blast furnace. When building a blast furnace, residual brick can be direct poured and formed to replace the compound brown corundum refractory forming brick and no high temperature is needed to fire during the production process; therefore, the invention is also an energy saving refractory for the blast tuyere zone of the ironmaking blast furnace and cast-place construction is not limited by space; fast pouring masonry is carried out and fast drying method is adopted, thereby being an inorganic nonmetal refractory applied to fast-drying quick furnace building and repairing during the blast furnace repairing and the tuyere zone of the newly-built blast furnace. The invention can normally furnace dry with the blast furnace.
Description
Technical field
The present invention relates to a kind of ironmaking tuyere of blast furnace band inorganic non-metallic refractory materials that is used for, particularly a kind of silicon nitride comprising, silicon carbide, aluminate cement, metallic aluminium powder, Pure Silicon Metal, silicon powder, aluminium micro mist, polypropylene fibre blended indefinite form refractory castable.
Technical background
The blast-furnace tuyere band is to build by laying bricks or stones with the moulded products in the refractory materials-compound brown corundum refractory brick at present, to repair after for some time when use compound brown corundum refractory brick at blast-furnace tuyere, there is remaining safe thickness in the blast-furnace tuyere band with compound brown corundum refractory brick or greater than safe thickness and erose residual brick in its mending course, if repair with the compound brown corundum refractory brick of new typing, because of residual brick refractory materials lining shape irregular, in uneven thickness, therefore just can repair after residual brick all must being dismantled, can cause the waste of a large amount of refractory materials resources like this, simultaneously, moulded products needs to burn till once more after the moulding, because production cycle length causes energy dissipation.Therefore compound brown corundum refractory brick needs moulding, burns till, cuts mill and pre-the block, and the operation that these are loaded down with trivial details causes the production cycle long, is unfavorable for realizing fast placing and repairing.
Summary of the invention
The technical problem to be solved in the present invention has provided a kind of mould material that following characteristics are arranged: can remain residual brick at the compound brown corundum refractory brick of blast-furnace tuyere band and pour into a mould repairing fast, when newly-built blast furnace also directly casting replace compound brown corundum refractory brick, burning till without high temperature in process of production, also is a kind of energy-conservation blast-furnace tuyere band refractory materials therefore.Casting and constructing is not limited by construction space, can pour into a mould fast and build by laying bricks or stones, has taked to do soon measure, can be with the normal baker of blast furnace.
Corundum-silicon nitride-silicon carbide composite pouring material of the present invention is to solve the problems of the technologies described above and the special characteristics that reach this mould material are made up of component (A) corundum, (B) silicon nitride, (C) silicon carbide, (D) aluminate cement, (E) metallic aluminium powder, (F) Pure Silicon Metal, (G) ultrafine silica powder, (H) alumina powder, (I) polypropylene fibre, wherein: the chemical ingredients Al that component (A) corundum is made by electric smelting by bauxitic clay or aluminum oxide powder
2O
3Content is the particle or the fine powder of 95%～100% fused corundom.A kind of chemical ingredients Si of silicon nitride by synthetic
3N
4Content is 93%～100% refractory raw material fine powder, and powder particle size is that 0.074 millimeter percent of pass is greater than 95%.Chemistry is 97%～100% silicon-carbide particle and fine powder refractory raw material for SiC content.Be not less than the refractory cements of GB CA-75 aluminate cement or the Secar71 aluminous refractory cement of Keyes's promise (China) aluminate cement company limited.Metallic aluminium content is greater than 97%, and fineness is 180 orders～200 purpose metallic aluminium powders.Pure Silicon Metal content is greater than 97%, and fineness is 180 orders～325 purpose metallic silicon powers.The ultrafine silica powder that meets smelting mark YB/T115-2004.Meeting the YS/T89-1995 granularity is less than 5 micron-sized alumina powders.Fusing point is at 120 ℃～180 ℃ polypropylene fibres.Mould material of the present invention is mixed by component (A), (B), (C), (D), (E), (F), (G), (H), (I) and the mixture made.Wherein: the weight percent that component (A) accounts for the mixture total weight amount is 65%～75%, and preferred percent 68%～73%, the advantage of component (A) in refractory materials are significantly, are that the basic ingredient of this mould material has high temperature resistant, wear-resisting, the anti-slagging of retractory.The basis of suitable ratio proof strength, thermostability, high thermal resistance, wear resistance, slag corrosion resistance.The weight percent that component (B) accounts for the mixture total weight amount is 1%～9%, preferred percent 3%～6%, it is topmost composition in the mould material of the present invention, report was used this raw material in this material in the past, and it has improved intensity, thermostability, high thermal resistance, wear resistance, the slag corrosion resistance of this mould material greatly by the oxidation-resistance that improves this mould material.The weight percent that component (C) accounts for the mixture total weight amount is 6%～10%, main effect has excellent resistance to fouling and thermal shock resistance in this mould material, but easily the oxidation resistance to fouling causes resistance to fouling and thermal shock resistance to descend significantly, but under component (B), (E) effect, oxidisability is inhibited.The weight percent that component (D) accounts for the mixture total weight amount is 2%～8%, it is the wedding agent of mould material, in this invention, utilize simultaneously the characteristic of its aquation heating to realize fast doing, promote the water of component E and adding to react further discharge moisture and fast the doing of the further realization of decomposition moisture content simultaneously, guaranteed not change the baking system after blast furnace is used this mould material instead, the real realization saved energy and reduce the cost, but its add-on will be taken all factors into consideration intensity and quick-drying energy, component (D) amount increases intensity and increases, but excessive, it is fierce that component E reacts, and causes the avalanche of pour mass cracking, therefore, component (D) amount should be below 8%.Proper ratio is 5%.The weight percent that component (E) accounts for the mixture total weight amount is 0.05%～0.3%, is that quick dry agent and component D complement each other, should the suitable tricks of the trade of using of strict control usage quantity.The weight percent that component (F) accounts for the mixture total weight amount is 1%～5%, after the oxidation mould material has been combined certain effect with residual brick, and has been antioxidant.The weight percent that component (G) accounts for the mixture total weight amount is 0.5%～4%, the weight percent that component (H) accounts for the mixture total weight amount is 3%～8%, component G and component H are the high temperature sintering agent of mould material, guarantee mould material at high temperature intensity and high temperature down with the bonding strength of residual brick, descending to become the mullite crystalline phase to influence intensity most important to high temperature thereby their amount is how much with reasonableness.The weight percent that component (I) accounts for the mixture total weight amount is 0.05%～0.15%, improves the ventilation property of mould material lining body, realizes quick drying.
The present invention is used for ironmaking equipment-blast furnace light maintenance, repaiies the fast inorganic non-metallic refractory materials of using with newly-built blast-furnace tuyere band of doing quick brickwork and repairing stove fast, studies and be successfully applied to 1800 meters of Jiuquan Iron ﹠ Steel Co. through for many years
3, 1000 meters
3On the blast furnace, wherein 1800 meters
3Blast furnace was put into operation in July, 2002, and 120 tons in shared material used 5 years, and is just in use now, respond well.
Embodiment
The following stated embodiment understands the present invention in detail.In these embodiments, unless otherwise indicated, all umbers and per-cent are all calculated by weight.
Embodiment 1
| Material name | Weight percent % |
| Fused white corundum | 71.43 |
| Silicon carbide | 6 |
| Silicon powder | 3 |
| Calcining αYang Hualv micro mist | 5 |
| Aluminate cement CA-75G | 7 |
| Silicon nitride | 5 |
| Polypropylene fibre | 0.12 |
| Metallic silicon power | 2 |
| Water reducer | 0.3 |
| Metallic aluminium powder | 0.15 |
Embodiment 2
| Material name | Weight percent % |
| Fused brown corundum or high alumina corundum | 71.43 |
| Silicon carbide | 6 |
| Silicon powder | 3 |
| Calcining αYang Hualv micro mist | 5 |
| Aluminate cement CA-75G | 7 |
| Silicon nitride | 5 |
| Polypropylene fibre | 0.12 |
| Metallic silicon power | 2 |
| Water reducer | 0.3 |
| Metallic aluminium powder | 0.15 |
Embodiment 3
| Material name | Weight percent % |
| Fused white corundum | 69.38 |
| Silicon carbide | 9 |
| Silicon powder | 1 |
| Calcining αYang Hualv micro mist | 6 |
| Aluminate cement CA-75G | 5 |
| Silicon nitride | 6 |
| Polypropylene fibre | 0.12 |
| Metallic silicon power | 3 |
| Water reducer | 0.3 |
| Metallic aluminium powder | 0.2 |
Embodiment 4
| Material name | Weight percent % |
| Fused corundom | 70.43 |
| Silicon carbide | 8 |
| Silicon powder | 3 |
| Calcining αYang Hualv micro mist | 5 |
| Aluminate cement CA-75G | 6 |
| Silicon nitride | 5 |
| Polypropylene fibre | 0.12 |
| Metallic silicon power | 2 |
| Water reducer | 0.3 |
| Metallic aluminium powder | 0.15 |
The technical process of embodiment 1,2,3,4
1. silicon nitride, aluminate, mud, metallic aluminium powder, Pure Silicon Metal, ultrafine silica powder and alumina powder are respectively with after the ratio weighing of electronic scale in above embodiment, with 800L double worm mixer mixing 6-8 minute;
2. corundum, silicon carbide mix with the 800L double worm mixer respectively with after the ratio weighing of electronic scale in above embodiment;
3. polypropylene fibre, water reducer, metallic aluminium powder are respectively with after the ratio weighing of electronic scale in above embodiment;
4. above 1-3 is obtained various material and all put into the planetary forced action type stirring mixer of 750 types, mixed 6-8 minute.
5. pack and seal with automatic packing machine.
Claims (4)
1. corundum-silicon nitride-silicon carbide composite pouring material that is used for the blast-furnace tuyere band, contain (A) corundum, (B) silicon nitride, (C) silicon carbide, (D) aluminate cement, (E) metallic aluminium powder, (F) Pure Silicon Metal, (G) ultrafine silica powder, (H) alumina powder, (I) polypropylene fibre, it is characterized in that: the weight percent that component (A) accounts for the mixture total weight amount is 65%～75%, the weight percent that component (B) accounts for the mixture total weight amount is 1%～9%, the weight percent that component (C) accounts for the mixture total weight amount is 6%～10%, the weight percent that component (D) accounts for the mixture total weight amount is 2%～8%, the weight percent that component (E) accounts for the mixture total weight amount is 0.05%～0.3%, the weight percent that component (F) accounts for the mixture total weight amount is 1%～5%, the weight percent that component (G) accounts for the mixture total weight amount is 0.5%～4%, the weight percent that component (H) accounts for the mixture total weight amount is 3%～8%, and the weight percent that component (I) accounts for the mixture total weight amount is 0.05%～0.15%.
2. corundum-silicon nitride-silicon carbide composite pouring material according to claim 1 is characterized in that: component (A) accounts for the weight percent 68%～73% of mixture total weight amount.
3. corundum-silicon nitride-silicon carbide composite pouring material according to claim 1 is characterized in that: the weight percent that component (B) accounts for the mixture total weight amount is 3%～6%.
4. corundum-silicon nitride-silicon carbide composite pouring material according to claim 1 is characterized in that: the weight percent that component (D) accounts for the mixture total weight amount is 5%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101930116A CN100537481C (en) | 2007-12-03 | 2007-12-03 | Corundum-silicon nitride-silicon carbide composite pouring material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101930116A CN100537481C (en) | 2007-12-03 | 2007-12-03 | Corundum-silicon nitride-silicon carbide composite pouring material |
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| CN101186517A true CN101186517A (en) | 2008-05-28 |
| CN100537481C CN100537481C (en) | 2009-09-09 |
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| CNB2007101930116A Expired - Fee Related CN100537481C (en) | 2007-12-03 | 2007-12-03 | Corundum-silicon nitride-silicon carbide composite pouring material |
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|---|---|---|---|---|
| CN102633513A (en) * | 2012-05-08 | 2012-08-15 | 中国钢研科技集团有限公司 | Fast-baking explosion proof type refractory castable for blast furnace iron runner |
| CN102757247A (en) * | 2012-07-30 | 2012-10-31 | 鲁山县宏业耐材有限公司 | Silicon nitride bonded silicon carbide thermal-shock-resistant castable |
| CN103204691A (en) * | 2013-05-07 | 2013-07-17 | 郑州中本窑炉材料有限公司 | Low-heat conductance silicon corundum brick material and silicon corundum composite brick made of same |
| CN103880437A (en) * | 2014-02-17 | 2014-06-25 | 河南省宏达炉业有限公司 | Silicon nitride ring-forming-resistant castable and production method thereof |
| CN103896610A (en) * | 2014-03-11 | 2014-07-02 | 郑州大学 | Method for manufacturing silicon oxynitride-bonded high aluminum-silicon carbide prefabricated member |
| CN103981315A (en) * | 2014-05-04 | 2014-08-13 | 山西太钢不锈钢股份有限公司 | Pouring method of blast-furnace tuyere lining |
| CN107879733A (en) * | 2017-12-22 | 2018-04-06 | 河南欣昌耐材股份有限公司 | A kind of blast furnace iron outlet groove quick-drying gravity flow pouring material |
| CN108046784A (en) * | 2018-01-30 | 2018-05-18 | 黎文泰 | A kind of high alumina refractory casting material and preparation method thereof |
| CN108046814A (en) * | 2017-12-22 | 2018-05-18 | 河南欣昌耐材股份有限公司 | The blast furnace iron outlet groove quick-drying gravity flow pouring material prepared using discarded castable reworked material |
| CN109942287A (en) * | 2019-04-17 | 2019-06-28 | 通达耐火技术股份有限公司 | A kind of waste incinerator anti-lime-ash attachment wear-resistant castable |
| CN111302776A (en) * | 2020-04-26 | 2020-06-19 | 河南兴亚能源有限公司 | Oxide coating modified homogenized alumina castable and preparation method thereof |
| CN111484346A (en) * | 2020-05-27 | 2020-08-04 | 孙志红 | Silicon nitride combined castable for blast furnace skimmer and blast furnace skimmer |
| CN111517815A (en) * | 2020-06-08 | 2020-08-11 | 郑州市瑞沃耐火材料有限公司 | Silicon nitride composite high-thermal conductivity castable |
| CN113666719A (en) * | 2020-05-13 | 2021-11-19 | 中冶建筑研究总院有限公司 | Quick-drying high-strength high-refractoriness under load castable for blast furnace tuyere and preparation method and application thereof |
| CN116135815A (en) * | 2021-11-16 | 2023-05-19 | 宝武装备智能科技有限公司 | Lining castable for integral casting of blast furnace belly pipe |
| WO2023109174A1 (en) * | 2021-12-15 | 2023-06-22 | 洛阳迈乐耐火材料有限公司 | Fiber-reinforced silicious module and preparation method |
| CN116768611A (en) * | 2023-06-25 | 2023-09-19 | 巩义市兴平耐火材料有限公司 | Al containing composite antioxidant 2 O 3 SiC-C iron runner castable and preparation method thereof |
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2007
- 2007-12-03 CN CNB2007101930116A patent/CN100537481C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633513A (en) * | 2012-05-08 | 2012-08-15 | 中国钢研科技集团有限公司 | Fast-baking explosion proof type refractory castable for blast furnace iron runner |
| CN102633513B (en) * | 2012-05-08 | 2013-09-18 | 中国钢研科技集团有限公司 | Fast-baking explosion proof type refractory castable for blast furnace iron runner |
| CN102757247A (en) * | 2012-07-30 | 2012-10-31 | 鲁山县宏业耐材有限公司 | Silicon nitride bonded silicon carbide thermal-shock-resistant castable |
| CN103204691A (en) * | 2013-05-07 | 2013-07-17 | 郑州中本窑炉材料有限公司 | Low-heat conductance silicon corundum brick material and silicon corundum composite brick made of same |
| CN103204691B (en) * | 2013-05-07 | 2014-07-02 | 郑州中本窑炉材料有限公司 | Low-heat conductance silicon corundum brick material and silicon corundum composite brick made of same |
| CN103880437A (en) * | 2014-02-17 | 2014-06-25 | 河南省宏达炉业有限公司 | Silicon nitride ring-forming-resistant castable and production method thereof |
| CN103896610A (en) * | 2014-03-11 | 2014-07-02 | 郑州大学 | Method for manufacturing silicon oxynitride-bonded high aluminum-silicon carbide prefabricated member |
| CN103896610B (en) * | 2014-03-11 | 2015-11-18 | 郑州大学 | A kind of silicon oxynitride is in conjunction with the preparation method of high aluminum/silicon carbide prefabricated component |
| CN103981315A (en) * | 2014-05-04 | 2014-08-13 | 山西太钢不锈钢股份有限公司 | Pouring method of blast-furnace tuyere lining |
| CN103981315B (en) * | 2014-05-04 | 2015-11-04 | 山西太钢不锈钢股份有限公司 | A kind of pouring procedure of blast-furnace tuyere liner |
| CN107879733A (en) * | 2017-12-22 | 2018-04-06 | 河南欣昌耐材股份有限公司 | A kind of blast furnace iron outlet groove quick-drying gravity flow pouring material |
| CN108046814A (en) * | 2017-12-22 | 2018-05-18 | 河南欣昌耐材股份有限公司 | The blast furnace iron outlet groove quick-drying gravity flow pouring material prepared using discarded castable reworked material |
| CN108046784A (en) * | 2018-01-30 | 2018-05-18 | 黎文泰 | A kind of high alumina refractory casting material and preparation method thereof |
| CN109942287A (en) * | 2019-04-17 | 2019-06-28 | 通达耐火技术股份有限公司 | A kind of waste incinerator anti-lime-ash attachment wear-resistant castable |
| CN111302776A (en) * | 2020-04-26 | 2020-06-19 | 河南兴亚能源有限公司 | Oxide coating modified homogenized alumina castable and preparation method thereof |
| CN113666719A (en) * | 2020-05-13 | 2021-11-19 | 中冶建筑研究总院有限公司 | Quick-drying high-strength high-refractoriness under load castable for blast furnace tuyere and preparation method and application thereof |
| CN111484346A (en) * | 2020-05-27 | 2020-08-04 | 孙志红 | Silicon nitride combined castable for blast furnace skimmer and blast furnace skimmer |
| CN111484346B (en) * | 2020-05-27 | 2022-08-12 | 孙志红 | Silicon nitride combined castable for blast furnace skimmer and blast furnace skimmer |
| CN111517815A (en) * | 2020-06-08 | 2020-08-11 | 郑州市瑞沃耐火材料有限公司 | Silicon nitride composite high-thermal conductivity castable |
| CN116135815A (en) * | 2021-11-16 | 2023-05-19 | 宝武装备智能科技有限公司 | Lining castable for integral casting of blast furnace belly pipe |
| WO2023109174A1 (en) * | 2021-12-15 | 2023-06-22 | 洛阳迈乐耐火材料有限公司 | Fiber-reinforced silicious module and preparation method |
| CN116768611A (en) * | 2023-06-25 | 2023-09-19 | 巩义市兴平耐火材料有限公司 | Al containing composite antioxidant 2 O 3 SiC-C iron runner castable and preparation method thereof |
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