CN101941845A - Iron-runner quick-drying casting material combined with silica sol - Google Patents
Iron-runner quick-drying casting material combined with silica sol Download PDFInfo
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- CN101941845A CN101941845A CN 201010262589 CN201010262589A CN101941845A CN 101941845 A CN101941845 A CN 101941845A CN 201010262589 CN201010262589 CN 201010262589 CN 201010262589 A CN201010262589 A CN 201010262589A CN 101941845 A CN101941845 A CN 101941845A
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- iron runner
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- iron
- silicon sol
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Abstract
The invention relates to a fireproof material used in an iron runner of a blast furnace cast house, in particular to an iron-runner quick-drying casting material combined with silica sol, which comprises the following raw materials in percentage by weight: 67 percent of Al2O3, 24.8 percent of SiC, 3 percent of carbon element material, 0.2 percent of dispersant, 2 percent of antioxidant and 3 percent of expanding agent. The raw materials are prepared into bone powder and fine powder which are evenly stirred to obtain a finished product. When the iron-runner quick-drying casting material is used, the silica sol in 6-10 percent of the total casting material is added, stirred and cast in an iron-runner die to form a product, and the product is demoulded and roasted under a large fire for 3-4h to yield iron. The invention has the advantages of short trenching time, burst resistance, high construction quality, short roasting time, long service life of the casting material, lightened labor intensity of workers, castoff and waste utilization, energy saving, emission reduction, no environment pollution and environmental protection.
Description
Technical field
The present invention relates to a kind of refractory materials of casting house use of blast furnace discharge yard, promptly silicon sol is done mould material soon in conjunction with iron runner.
Background technology
In the prior art, various types of blast furnaces need set out iron runner in the pickup groove outside its iron notch, and the quality of casting house performance will directly influence the ordinary production of blast furnace.The on-the-spot general casting house that adopts low cement deposit material formation working lining of common big-and-middle-sized blast furnace; Medium and small blast furnace generally adopts the ramming refractory materials to constitute working lining.Traditional medium and small blast furnace casting house all is with exempting to toast AL
2O
3-SiC-C (ASC) ramming mass, because of the number of casts frequent, output progressively increases, the engineering time of ramming iron runner material is short, has only sometimes about 20 minutes, because of construction at high temperature, execution conditions are abominable, labor strength is big, complex manufacturing, pollution are big, it is big to consume, and often stops production because of iron runner damages damping down sometimes, influences the blast furnace ordinary production.Big blast furnace iron runner is with low cement bonded mould material, because of containing calcium in the cement, the mould material fusing point is reduced, in construction time of drying long, even add explosion-proof fiber and metallic aluminium powder, also can cause the iron runner crackle or peel off, therefore, the minimizing in work-ing life.
Summary of the invention
The objective of the invention is provides a kind of long service life at above-mentioned deficiency, and the better silicon sol bonded of result of use iron runner is done mould material soon.
Technical solution of the present invention is: silicon sol bonded iron runner is done mould material soon and is comprised following raw materials by weight percent: Al
2O
3(aluminum oxide or activated alumina) or be rich in Al
2O
3Furnace charge 60-70% (granularity 0.15-20mm), SiC 10-25% (granularity 0.088-1.0mm), carbon raw 1-5%, dispersion agent 0.1-0.5%, oxidation inhibitor 1-5%, swelling agent 1-10%.The described Al that is rich in
2O
3Furnace charge refers to that high alumina (contains Al
2O
3〉=85%), brown corundum (contains Al
2O
3〉=95%) or big blast furnace iron runner waste material a kind of, two or three be used in combination, big blast furnace iron runner waste material mainly is to originate in 3200m
3The above iron runner of blast furnace is rolled over the Al that falls
2O
3-SiC-C matter material waste material contains Al
2O
3〉=70%, the body of SiC 〉=20% is close than higher raw material (market is on sale, sells as the Baosteel output, guarantees that the content composition gets final product).High alumina comprises that density is big, the raw material that rotary kiln that sintering is good or down-draft kiln burn till, Al
2O
3〉=85%, body is close 〉=material that the 2.8g/cm3 sintering is good, adopt to contain Al
2O
3As the base-material benefit is anti-erosion, anti-washing away.Described SiC is black silicon carbide, regeneration silicon carbide, green silicon carbide or silicon carbide waste, and purposes is anti-erosion, is not stained with slag, is not stained with iron, and structural strength is big, and silicon carbide waste is meant used silicon carbide brick or the silicon carbide byproduct that utilizes again.Described carbon raw is graphite, pitch or coke oven ash, and purposes is not to be stained with slag, is not stained with iron, anti-erosion.Described dispersion agent is tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 or trisodium phosphate.Described oxidation inhibitor is metallic aluminium powder or metallic silicon power.Described swelling agent is ground silica, kyanite or sillimanite.Adding wedding agent is silicon sol, accounts for the 6-10% of total mould material.
Above-mentioned raw materials is made aggregate and fine powder (selecting regular particle size, segmentation granularity or fineness for use), stirs, and gets finished product.(consumption is the 6-10% that accounts for total mould material, preferred SiO to add silicon sol during use
2〉=30% nano grade high temperature silicon sol) stir, be poured into the iron runner die for molding, the big fire baking can be tapped a blast furnace in 3-4 hour behind the demoulding.This material just progressively changes into the mullite phase greater than 800 ℃ the time, corundum, silicon carbide and carbon closely are combined into one, nanometer level microporous equably and slit have been formed, can get rid of the moisture in the mould material fast, do low cement deposit material storing time shortening 4-6 doubly than fast, tap drain once-cast 80-90 ton only need toast 3-4 hour, and iron influx can reach more than 150,000 tons, be applicable to the medium and small blast furnace iron runner of an iron notch, also be applicable to plural large blast furnace casting house.
Advantage of the present invention is: 1, beats ditch time weak point, is difficult for explosion, and the construction quality height, proportion can reach 2.5-3.0g/cm
32, storing time is short, just can directly toast with big fire after the demoulding.Only toast more than the tap drain once-cast 80-90 ton and can tap a blast furnace in 3-4 hour, cover waters 10-20 ton material, toasts and can tap a blast furnace in 20-30 minute.3, mould material long service life, cast once can be tapped a blast furnace more than 150,000 tons, only needs running repair, reduces labor strength.4, reuse sharply useless, primary resource is saved in energy-saving and emission-reduction, prolongs the life chain of primary resource, reduces cost, and increases benefit.5, free from environmental pollution, environmental protection and energy saving.
Below in conjunction with embodiment embodiments of the present invention are described in further detail.
Embodiment
Embodiment 1
Silicon sol is done mould material soon in conjunction with iron runner and is made up of following raw materials by weight percent: Al
2O
367%, SiC 24.8%, carbon raw 3%, dispersion agent 0.2%, oxidation inhibitor 2%, swelling agent 3%.
Embodiment 2
Silicon sol is done mould material soon in conjunction with iron runner and is made up of following raw materials by weight percent: high alumina 70%, silicon carbide 20%, graphite 3%, tripoly phosphate sodium STPP 0.1%, aluminium powder 0.5%, kyanite 6.4%.
Embodiment 3
Silicon sol is done mould material soon in conjunction with iron runner and is made up of following raw materials by weight percent: high alumina 45%, brown corundum 20%, black silicon carbide 10%, silicon carbide waste 10%, pitch 4%, metallic silicon power 3%, sillimanite 7.8%, Sodium hexametaphosphate 99 0.2%.
Embodiment 4
Silicon sol is done mould material soon in conjunction with iron runner and is made up of following raw materials by weight percent: high alumina 40%, palm fibre corundum 30%, black silicon carbide 8%, silicon carbide waste 15%, pitch 2%, graphite 1%, metallic silicon power 1%, aluminium powder, 0.5%, Sodium hexametaphosphate 99 0.2%, tripoly phosphate sodium STPP 0.1%, ground silica 2.2%.
Embodiment 5
Silicon sol is done mould material soon in conjunction with iron runner and is made up of following raw materials by weight percent: high alumina 20%, palm fibre corundum 20%, iron runner waste material 25%, activated alumina 5%, black silicon carbide 5%, green silicon carbide 8%, silicon carbide waste 10%, coke oven ash 3%, kyanite 2%, tripoly phosphate sodium STPP 0.2%, metallic silicon power 1.5%, aluminium powder 0.3%.
Embodiment 6
Silicon sol is done mould material soon in conjunction with iron runner and is made up of following raw materials by weight percent: high alumina 67%, black silicon carbide 24.8%, graphite 3%, tripoly phosphate sodium STPP 0.2%, metallic silicon power 2%, kyanite 3%.
Claims (10)
1. a silicon sol bonded iron runner is done mould material soon, it is characterized in that comprising following raw materials by weight percent:
Al
2O
3Or be rich in Al
2O
3Furnace charge 60-70%
SiC?10-25％，
Carbon raw 1-5%,
Dispersion agent 0.1-0.5%,
Oxidation inhibitor 1-5%,
Swelling agent 1-10%.
2. do mould material soon according to the described silicon sol bonded of claim 1 iron runner, it is characterized in that the described Al of being rich in
2O
3Furnace charge refers to a kind of or combination of high alumina, brown corundum or big blast furnace iron runner waste material.
3. do mould material soon according to the described silicon sol bonded of claim 1 iron runner, it is characterized in that described SiC is black silicon carbide, green silicon carbide, regeneration silicon carbide or silicon carbide waste.
4. do mould material soon according to the described silicon sol bonded of claim 1 iron runner, it is characterized in that described carbon raw is graphite, pitch or coke oven ash.
5. do mould material soon according to the described silicon sol bonded of claim 1 iron runner, it is characterized in that described dispersion agent is tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 or trisodium phosphate.
6. do mould material soon according to the described silicon sol bonded of claim 1 iron runner, it is characterized in that described oxidation inhibitor is aluminium powder or metallic silicon power.
7. do mould material soon according to the described silicon sol bonded of claim 1 iron runner, it is characterized in that described swelling agent is ground silica, kyanite or sillimanite.
8. do mould material soon according to the arbitrary described silicon sol bonded iron runner of claim 1-7, it is characterized in that adding wedding agent is silicon sol, accounts for the 6-10% of total mould material.
9. do mould material soon according to the described silicon sol bonded of claim 8 iron runner, it is characterized in that Al
2O
367%, SiC 24.8%, carbon raw 3%, dispersion agent 0.2%, oxidation inhibitor 2%, swelling agent 3%.
10. do mould material soon according to the described silicon sol bonded of claim 9 iron runner, it is characterized in that high alumina 70%, silicon carbide 20%, graphite 3%, tripoly phosphate sodium STPP 0.1%, aluminium powder 0.5%, kyanite 6.4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010262589 CN101941845A (en) | 2010-08-26 | 2010-08-26 | Iron-runner quick-drying casting material combined with silica sol |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010262589 CN101941845A (en) | 2010-08-26 | 2010-08-26 | Iron-runner quick-drying casting material combined with silica sol |
Publications (1)
| Publication Number | Publication Date |
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| CN101941845A true CN101941845A (en) | 2011-01-12 |
Family
ID=43434085
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010262589 Pending CN101941845A (en) | 2010-08-26 | 2010-08-26 | Iron-runner quick-drying casting material combined with silica sol |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381881A (en) * | 2011-07-25 | 2012-03-21 | 郑州京华耐火材料实业有限公司 | High-aluminum silicon carbide casting material combined with silica sol |
| CN102633507A (en) * | 2011-02-15 | 2012-08-15 | 三和耐火工业股份有限公司 | Silicasol casting material for blast furnace sprue |
| CN102633506A (en) * | 2011-02-15 | 2012-08-15 | 三和耐火工业股份有限公司 | Silica sol guniting material for main runner of blast furnace |
| CN103396126A (en) * | 2013-07-16 | 2013-11-20 | 安徽瑞泰新材料科技有限公司 | Refractory castable and using method thereof |
| CN103467114A (en) * | 2013-08-22 | 2013-12-25 | 长兴攀江冶金材料有限公司 | Silica sol compound castable |
| CN103482987A (en) * | 2012-06-14 | 2014-01-01 | 天津振普筑炉衬里工程有限公司 | Wear resistance casting material for ladle |
| CN103496989A (en) * | 2013-08-22 | 2014-01-08 | 长兴攀江冶金材料有限公司 | Preparation method of silica sol combined castable |
| CN103922771A (en) * | 2014-04-01 | 2014-07-16 | 长兴煤山新型炉料有限公司 | Storage iron runner castable produced by adopting waste iron runner material |
| CN105174977A (en) * | 2015-08-12 | 2015-12-23 | 长兴正豪耐火材料有限公司 | Acid and alkali resistant high-performance refractory castable using waste sanitary ware and preparation process thereof |
| CN106045528A (en) * | 2016-05-31 | 2016-10-26 | 中国冶集团有限公司 | Iron runner ramming material containing 90% of waste refractories or above |
| CN106045529A (en) * | 2016-05-31 | 2016-10-26 | 中国冶集团有限公司 | Iron runner castable containing 80% of waste refractories or above |
| CN108752004A (en) * | 2018-09-10 | 2018-11-06 | 北京东峰兴达耐火材料有限公司 | High-temperature heat-conductive castable |
| CN111606695A (en) * | 2020-06-01 | 2020-09-01 | 无锡市宝宜耐火材料有限公司 | Corrosion-resistant Al2O3-SiC-C iron runner material and preparation method thereof |
| CN111960808A (en) * | 2020-08-31 | 2020-11-20 | 唐山金山腾宇科技有限公司 | Self-flowing castable prepared from blast furnace iron runner cover waste and preparation method thereof |
| CN113354401A (en) * | 2021-06-25 | 2021-09-07 | 中冶武汉冶金建筑研究院有限公司 | Ammonium ion stable silica sol combined iron runner castable |
| CN115433015A (en) * | 2022-08-24 | 2022-12-06 | 上海宝九和耐火材料有限公司 | Refractory castable for hazardous waste incinerator and preparation method thereof |
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| CN101693625A (en) * | 2009-10-22 | 2010-04-14 | 攀枝花学院 | Smashing and hitting material for blast furnace iron outlet groove |
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| CN101693625A (en) * | 2009-10-22 | 2010-04-14 | 攀枝花学院 | Smashing and hitting material for blast furnace iron outlet groove |
Non-Patent Citations (2)
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| 《耐火材料》 20081231 甘菲芳等 硅溶胶结合Al2O3-SiC-C浇注料的抗侵蚀性能 第190-192页 8-10 第42卷, 第3期 2 * |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633507A (en) * | 2011-02-15 | 2012-08-15 | 三和耐火工业股份有限公司 | Silicasol casting material for blast furnace sprue |
| CN102633506A (en) * | 2011-02-15 | 2012-08-15 | 三和耐火工业股份有限公司 | Silica sol guniting material for main runner of blast furnace |
| CN102381881A (en) * | 2011-07-25 | 2012-03-21 | 郑州京华耐火材料实业有限公司 | High-aluminum silicon carbide casting material combined with silica sol |
| CN103482987A (en) * | 2012-06-14 | 2014-01-01 | 天津振普筑炉衬里工程有限公司 | Wear resistance casting material for ladle |
| CN103396126B (en) * | 2013-07-16 | 2016-04-13 | 安徽瑞泰新材料科技有限公司 | A kind of refractory castable and using method thereof |
| CN103396126A (en) * | 2013-07-16 | 2013-11-20 | 安徽瑞泰新材料科技有限公司 | Refractory castable and using method thereof |
| CN103496989A (en) * | 2013-08-22 | 2014-01-08 | 长兴攀江冶金材料有限公司 | Preparation method of silica sol combined castable |
| CN103467114A (en) * | 2013-08-22 | 2013-12-25 | 长兴攀江冶金材料有限公司 | Silica sol compound castable |
| CN103922771A (en) * | 2014-04-01 | 2014-07-16 | 长兴煤山新型炉料有限公司 | Storage iron runner castable produced by adopting waste iron runner material |
| CN103922771B (en) * | 2014-04-01 | 2015-06-17 | 长兴煤山新型炉料有限公司 | Storage iron runner castable produced by adopting waste iron runner material |
| CN105174977A (en) * | 2015-08-12 | 2015-12-23 | 长兴正豪耐火材料有限公司 | Acid and alkali resistant high-performance refractory castable using waste sanitary ware and preparation process thereof |
| CN106045528B (en) * | 2016-05-31 | 2019-04-23 | 中国一冶集团有限公司 | A kind of iron runner ramming mass containing 90% or more waste and old resistance to material |
| CN106045528A (en) * | 2016-05-31 | 2016-10-26 | 中国冶集团有限公司 | Iron runner ramming material containing 90% of waste refractories or above |
| CN106045529A (en) * | 2016-05-31 | 2016-10-26 | 中国冶集团有限公司 | Iron runner castable containing 80% of waste refractories or above |
| CN108752004A (en) * | 2018-09-10 | 2018-11-06 | 北京东峰兴达耐火材料有限公司 | High-temperature heat-conductive castable |
| CN111606695A (en) * | 2020-06-01 | 2020-09-01 | 无锡市宝宜耐火材料有限公司 | Corrosion-resistant Al2O3-SiC-C iron runner material and preparation method thereof |
| CN111606695B (en) * | 2020-06-01 | 2022-05-17 | 无锡市宝宜耐火材料有限公司 | Corrosion-resistant Al2O3-SiC-C iron runner material and preparation method thereof |
| CN111960808A (en) * | 2020-08-31 | 2020-11-20 | 唐山金山腾宇科技有限公司 | Self-flowing castable prepared from blast furnace iron runner cover waste and preparation method thereof |
| CN113354401A (en) * | 2021-06-25 | 2021-09-07 | 中冶武汉冶金建筑研究院有限公司 | Ammonium ion stable silica sol combined iron runner castable |
| CN113354401B (en) * | 2021-06-25 | 2022-07-08 | 中冶武汉冶金建筑研究院有限公司 | Ammonium ion stable silica sol combined iron runner castable |
| CN115433015A (en) * | 2022-08-24 | 2022-12-06 | 上海宝九和耐火材料有限公司 | Refractory castable for hazardous waste incinerator and preparation method thereof |
| CN115433015B (en) * | 2022-08-24 | 2023-09-08 | 上海宝九和耐火材料有限公司 | Refractory castable for hazardous waste incinerator and preparation method thereof |
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Application publication date: 20110112 |