CN100404466C - Skimming tool - Google Patents
Skimming tool Download PDFInfo
- Publication number
- CN100404466C CN100404466C CNB2006100539084A CN200610053908A CN100404466C CN 100404466 C CN100404466 C CN 100404466C CN B2006100539084 A CNB2006100539084 A CN B2006100539084A CN 200610053908 A CN200610053908 A CN 200610053908A CN 100404466 C CN100404466 C CN 100404466C
- Authority
- CN
- China
- Prior art keywords
- skimmer
- micro mist
- composite additive
- water
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000843 powder Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000654 additive Substances 0.000 claims abstract description 18
- 230000000996 additive effect Effects 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 16
- 239000010431 corundum Substances 0.000 claims abstract description 16
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 14
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004568 cement Substances 0.000 claims abstract description 13
- 239000003595 mist Substances 0.000 claims description 21
- 229910052782 aluminium Inorganic materials 0.000 claims description 15
- 229910052710 silicon Inorganic materials 0.000 claims description 14
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 13
- 239000004411 aluminium Substances 0.000 claims description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 239000003963 antioxidant agent Substances 0.000 claims description 11
- 230000003078 antioxidant effect Effects 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- 238000004880 explosion Methods 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 6
- -1 retardant Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 abstract description 8
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 229910052594 sapphire Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 239000011863 silicon-based powder Substances 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 241000238634 Libellulidae Species 0.000 description 32
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 22
- 239000000463 material Substances 0.000 description 15
- 229910052742 iron Inorganic materials 0.000 description 11
- 235000006708 antioxidants Nutrition 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 239000002994 raw material Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000006052 feed supplement Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 101710194948 Protein phosphatase PhpP Proteins 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 1
Landscapes
- Ceramic Products (AREA)
Abstract
The skimming tool is made with dense corundum or brown corundum 43-48 wt%, silicon carbide 29-33 wt%, pelleted pitch 2-3 wt%, calcium aluminate cement 2.5-3 wt%, fine alpha-Al2O3 powder 8-10 wt%, fine uf-SiO2 powder 2-2.5 wt%, metal aluminum powder 0.5-1.5 wt%, metal silicon powder 1-3 wt%, composite additive 0.3-0.5 wt%, and water 3.5-5.5 wt%. The skimming tool of the present invention has excellent washing, oxidizing and slag erosion resisting performance and long service life.
Description
[technical field]
The present invention relates to smelt iron the auxiliary facility field, relate in particular to slag iron tripping device when tapping a blast furnace before the State of Blast Furnace.
[background technology]
Along with the quick growth of China's iron and steel output, the focus that the raising of the various quality of materials in stokehold has become refractories industry to pay close attention to.Skimmer is the main device of blast furnace steel-making stokehold slag iron treatment system, and skimmer is changed the length of time, directly has influence on the ordinary production order of blast furnace, has influence on the economic benefit of steel mill then.Existing skimmer all is to adopt the on-the-spot bulk cargo ramming of punching block to form, how much weight different steel mills account for and recently make skimmer and all have bigger randomness which uses plant bulk cargo and various bulk cargo, the antiscour of the skimmer of producing, anti-oxidant and anti-scour property is poor, just needed feed supplement once in every 10-15 days, have only 1-2 month general work-ing life, thereby influence is tapped a blast furnace on schedule, has prolonged molten iron and has deposited the stove time, brings potential safety hazard and has increased ton iron cost.The damage of skimmer material mainly is because the periodically chemical erosion of slag, molten iron, and the be full of cracks that thermal shocking causes is peeled off and washing away of slag iron reason such as deteriorate.With elder brother's steel iron work small furnace skimmer is example, uses traditional ramming mass, needs per week newly to make skimmer once.Life-span is shorter, repairs frequently, and labour intensity is big, severe operational environment; Because furrow bank dry slag iron phenomenon is serious etc., cause and make difficulty, it is consuming time that too much usually influence is tapped a blast furnace on schedule, causes the checking underproduction, and coke ratio raises, and has reduced labour productivity.
So, how to develop a kind of have good antiscour, anti-oxidant and anti-scour property, the high-performance skimmer of long service life has become the task of top priority.
[summary of the invention]
Purpose of the present invention solves the problems of the prior art exactly, proposes a kind of skimmer, has good antiscour, anti-oxidant and anti-scour property, long service life.
For achieving the above object, the present invention proposes a kind of skimmer, by compact alumina or brown corundum, silicon carbide, pelletted pitch, pure calcium aluminate cement, α-Al
2O
3Micro mist, uf-SiO
2Micro mist, metallic aluminium powder, metallic silicon power, composite additive and water cast form, the weight percent of said components is respectively: compact alumina or brown corundum: 43%-48%, silicon carbide: 29%-33%, pelletted pitch: 2%-3%, pure calcium aluminate cement: 2.5%-3%, α-Al
2O
3Micro mist: 8%-10%, uf-SiO
2Micro mist: 2%-2.5%, metallic aluminium powder: 0.5%-1.5%, metallic silicon power: 1%-3%, composite additive: 0.3%-0.5%, water: 3.5%-5.5%; Described composite additive is made up of water reducer, retardant, dispersant with high efficiency, antioxidant and anti-explosion agent, the weight percent of said components is respectively: water reducer: 18%-22%, retardant: 18%-22%, dispersant with high efficiency: 18%-22%, antioxidant: 18%-22%, anti-explosion agent: 18%-22%.
As preferably, the weight percent of each component is respectively: compact alumina or brown corundum: 45%, and silicon carbide: 31%, pelletted pitch: 2.5%, pure calcium aluminate cement: 3%, α-Al
2O
3Micro mist: 9%, uf-SiO
2Micro mist: 2%, metallic aluminium powder: 1%, metallic silicon power: 2%, composite additive: 0.5%, water: 4%.
Beneficial effect of the present invention: the present invention has added compound super-fine powder on the basis of compact alumina or brown corundum and two kinds of major ingredients of silicon carbide, wedding agent and composite additive, and to compound super-fine powder, the adding mechanism of wedding agent and composite additive and add-on have been carried out big quantity research and repeatedly experiment repeatedly, explored the zone of reasonableness of various component add-ons, the skimmer that adopts this prescription to produce has good antiscour, anti-oxidant and anti-scour property, prolonged the work-ing life of skimmer greatly, can reach 4-6 month the work-ing life of a skimmer, and do not need feed supplement in the use, greatly reduce stokehold labour intensity.Said components adopts cast to form the prefabricated skimmer, and under situation about reaching than original more excellent effect, its thickness is more a lot of than original little, has saved raw material resources.This skimmer cost is low, and long service life is easy for installation, greatly reduces stokehold hand labor intensity, has improved the stokehold Working environment, has improved labour productivity, has reduced ton iron cost.
[embodiment]
Embodiment one:
Compact alumina or brown corundum: 45%, silicon carbide: 31%, pelletted pitch: 2.5%, pure calcium aluminate cement: 3%, α-Al
2O
3Micro mist: 9%, uf-SiO
2Micro mist: 2%, metallic aluminium powder: 1%, metallic silicon power: 2%, composite additive: 0.5%, water: 4%.Directly be poured in the mould after preparing material according to the above ratio, fire, the prefabricated skimmer that formation can directly be used does not need to carry out the stokehold ramming again when the user uses.And under situation about reaching than original more excellent effect, its thickness is more a lot of than original little, has saved raw material resources.
The volume of blast furnace generally has 150m3,300m3,450m3, plurality of specifications such as 700m3, the volume of skimmer is mutually corresponding with the volume of blast furnace, and big volumetrical blast furnace will adopt big volumetrical skimmer, corresponding raw-material amount also will increase, but the weight percent of various components remains unchanged.
Wherein, compact alumina or brown corundum, silicon carbide are as bulk goods (aggregate) and powder-material.Allocate corundum material into to satisfy the use temperature of about 1500 ℃ of skimmers; The premium properties that utilizes carbofrax material is to satisfy the requirement of skimmer slag resistance, wear resistance, antiscour heat-shock resistance etc.; Utilize carbide fine powder can also play the effect that prevents oxidation of coal.Difference according to the skimmer size specification is controlled at 10-15mm with limit particle, and grain composition is the 3-4 level.Powder-material accounts for about 60% in compact alumina or the brown corundum, and powder-material accounts for about 60% in the silicon carbide.
Select α-Al
2O
3And uf-SiO
2Make compound super-fine powder.Purpose is to improve the slag corrosion resistance and the thermal shock resistance of skimmer; Improve the flowability of mould material, reduce water consumption; When temperature＞800 ℃, can in matrix, form the mullite reticulated structure, the strength of materials is improved.But uf-SiO
2Adding surpass certain amount, will have influence on other performance of material, so with uf-SiO
2The amount of micro mist is about 2%.
Select pure calcium aluminate cement, pelletted pitch, Pure Silicon Metal and metallic aluminium powder to make wedding agent.Select for use the low calcium pure calcium aluminate cement of aquation wedding agent to guarantee the use temperature of about 1500 ℃ of skimmers; Select the organic bond pelletted pitch for use, utilize its higher carbon content to bring into play its good anti-scour property effect.Simultaneously, carbon content is high more in the wedding agent, and residual carbon element is also many more in bonded carbon element concentration and the hole on granular and powder-material surface, thereby makes the skimmer compact structure, and intensity increases; Select ceramic bond Pure Silicon Metal and metallic aluminium powder for use, be intended to interior in a big way hot strength (Si and C reaction generation β-SiC, Al and the C reaction generation Al at a certain temperature, that improves skimmer
4C
3).In addition, Al and Si can also play the effect that prevents that C is oxidized, also have the effect of doing anti-explosion agent.But because the response capacity of Al and Si is stronger, so the amount of metallic aluminium powder is controlled at about 1%, the amount of metallic silicon power is controlled at about 2%.
Select water reducer, retardant, dispersant with high efficiency, antioxidant, anti-explosion agent to form composite additive.The weight percent of said components is a water reducer in the composite additive: 20%, and retardant: 20%, dispersant with high efficiency: 20%, antioxidant: 20%, anti-explosion agent: 20%.Select for use tripoly phosphate sodium STPP to make water reducer, citric acid is made retardant, organic fibre is done anti-explosion agent, boron-containing compound is made antioxidant.
The prefabricated skimmer that adopts this prescription to make is whole for alkaline, environmentally safe.
The prefabricated skimmer that adopts this prescription to make, detecting station, Yixing through national light industry ceramic refractory quality surveillance detects, it reaches more than the 3.01g/cm3 in the volume density of baking after 24 hours under 110 ℃, strength at normal temperature reaches more than the 8.5MPa, and cold crushing strength reaches more than the 60.8MPa; Reach more than the 2.88g/cm3 in the volume density of baking after 3 hours under 1450 ℃, strength at normal temperature reaches more than the 11.6MPa, and cold crushing strength reaches more than the 60.6MPa.
Embodiment two:
Compact alumina or brown corundum: 43%, silicon carbide: 33%, pelletted pitch: 3%, pure calcium aluminate cement: 2.7%, α-Al
2O
3Micro mist: 9.8%, uf-SiO
2Micro mist: 2%, metallic aluminium powder: 0.5%, metallic silicon power: 1%, composite additive: 0.3%, water: 4.7%.Directly be poured in the mould after preparing material according to the above ratio, fire, the prefabricated skimmer that formation can directly be used does not need to carry out the stokehold ramming again when the user uses.And under situation about reaching than original more excellent effect, its thickness is more a lot of than original little, has saved raw material resources.
Embodiment three:
Compact alumina or brown corundum: 48%, silicon carbide: 29%, pelletted pitch: 2%, pure calcium aluminate cement: 2.5%, α-Al
2O
3Micro mist: 8%, uf-SiO
2Micro mist: 2.5%, metallic aluminium powder: 1.5%, metallic silicon power: 2.6%, composite additive: 0.4%, water: 3.5%.Directly be poured in the mould after preparing material according to the above ratio, fire, the prefabricated skimmer that formation can directly be used does not need to carry out the stokehold ramming again when the user uses.And under situation about reaching than original more excellent effect, its thickness is more a lot of than original little, has saved raw material resources.
Embodiment four:
Compact alumina or brown corundum: 46%, silicon carbide: 29%, pelletted pitch: 3%, pure calcium aluminate cement: 3%, α-Al
2O
3Micro mist: 8%, uf-SiO
2Micro mist: 2%, metallic aluminium powder: 1.5%, metallic silicon power: 1.5%, composite additive: 0.5%, water: 5.5%.Directly be poured in the mould after preparing material according to the above ratio, fire, the prefabricated skimmer that formation can directly be used does not need to carry out the stokehold ramming again when the user uses.And under situation about reaching than original more excellent effect, its thickness is more a lot of than original little, has saved raw material resources.
The foregoing description is to explanation of the present invention, is not limitation of the invention, any prescription after the simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (2)
1. skimmer is characterized in that: by compact alumina or brown corundum, silicon carbide, pelletted pitch, pure calcium aluminate cement, α-Al
2O
3Micro mist, uf-SiO
2Micro mist, metallic aluminium powder, metallic silicon power, composite additive and water cast form, the weight percent of said components is respectively: compact alumina or brown corundum: 43%-48%, silicon carbide: 29%-33%, pelletted pitch: 2%-3%, pure calcium aluminate cement: 2.5%-3%, α-Al
2O
3Micro mist: 8%-10%, uf-SiO
2Micro mist: 2%-2.5%, metallic aluminium powder: 0.5%-1.5%, metallic silicon power: 1%-3%, composite additive: 0.3%-0.5%, water: 3.5%-5.5%; Described composite additive is made up of water reducer, retardant, dispersant with high efficiency, antioxidant and anti-explosion agent, the weight percent of each component is respectively in the composite additive: water reducer: 18%-22%, retardant: 18%-22%, dispersant with high efficiency: 18%-22%, antioxidant: 18%-22%, anti-explosion agent: 18%-22%.
2. skimmer as claimed in claim 1 is characterized in that: the weight percent of each component is respectively: compact alumina or brown corundum: 45%, and silicon carbide: 31%, pelletted pitch: 2.5%, pure calcium aluminate cement: 3%, α-Al
2O
3Micro mist: 9%, uf-SiO
2Micro mist: 2%, metallic aluminium powder: 1%, metallic silicon power: 2%, composite additive: 0.5%, water: 4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100539084A CN100404466C (en) | 2006-10-20 | 2006-10-20 | Skimming tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100539084A CN100404466C (en) | 2006-10-20 | 2006-10-20 | Skimming tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1944343A CN1944343A (en) | 2007-04-11 |
| CN100404466C true CN100404466C (en) | 2008-07-23 |
Family
ID=38044021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100539084A Expired - Fee Related CN100404466C (en) | 2006-10-20 | 2006-10-20 | Skimming tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100404466C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496994A (en) * | 2013-09-23 | 2014-01-08 | 宜兴市张泽浇注耐火材料有限公司 | Acid-resisting alkali-resisting refractory castable for garbage incinerator |
| CN104045355B (en) * | 2014-05-26 | 2016-02-03 | 芜湖水泵制造有限公司 | A kind of blast furnace casting skimmer |
| CN104045356B (en) * | 2014-05-26 | 2016-02-03 | 芜湖水泵制造有限公司 | A kind of preparation method of blast furnace casting skimmer |
| CN105347828B (en) * | 2014-07-16 | 2018-02-23 | 安徽工业大学 | A kind of preparation method of long-lived blast furnace casting sand mouth |
| CN105777086B (en) * | 2014-09-02 | 2019-01-18 | 马鞍山华盛冶金科技发展有限公司 | A kind of preparation method of skimming equipment pouring material |
| CN104588633B (en) * | 2015-01-27 | 2016-08-17 | 鞍钢附企三炼钢修造总厂 | A kind of automatic block device of slag circle and manufacture method thereof |
| CN104529495A (en) * | 2015-01-28 | 2015-04-22 | 长兴明天炉料有限公司 | Skimming tool and production process |
| CN106747460A (en) * | 2016-12-07 | 2017-05-31 | 浙江嘉吉石化工程有限公司 | A kind of gasification furnace carborundum ramming mass |
| CN107324783A (en) * | 2017-06-20 | 2017-11-07 | 浙江锦诚新材料股份有限公司 | A kind of skimming tool crossbeam quick change prefabricated component and preparation method thereof |
| CN113683401A (en) * | 2020-05-19 | 2021-11-23 | 中冶宝钢技术服务有限公司 | Manufacturing process of main channel iron slag separator |
| CN114956839B (en) * | 2022-04-18 | 2023-05-23 | 南京联合荣大工程材料有限责任公司 | Baffle plate for skimming tool and preparation method thereof |
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|---|---|---|---|---|
| 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 |
| US20040102307A1 (en) * | 2002-11-25 | 2004-05-27 | Refractory Intellectual Property Gmbh & Co. Kg | Non-basic refractory compound as well as its uses |
| CN1661117A (en) * | 2004-02-27 | 2005-08-31 | 武汉科技大学 | Method for preparing cast material of AL2O3-SiC-Ciron runner |
| CN1746135A (en) * | 2005-07-19 | 2006-03-15 | 中国地质大学（北京） | Fire-proof pouring material of iron tap channel of blast-furnace and production thereof |
| RU2273618C1 (en) * | 2004-11-01 | 2006-04-10 | ЗАО "Росметаллкомплект" | Plastic refractory material |
-
2006
- 2006-10-20 CN CNB2006100539084A patent/CN100404466C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US20040102307A1 (en) * | 2002-11-25 | 2004-05-27 | Refractory Intellectual Property Gmbh & Co. Kg | Non-basic refractory compound as well as its uses |
| CN1661117A (en) * | 2004-02-27 | 2005-08-31 | 武汉科技大学 | Method for preparing cast material of AL2O3-SiC-Ciron runner |
| RU2273618C1 (en) * | 2004-11-01 | 2006-04-10 | ЗАО "Росметаллкомплект" | Plastic refractory material |
| CN1746135A (en) * | 2005-07-19 | 2006-03-15 | 中国地质大学（北京） | Fire-proof pouring material of iron tap channel of blast-furnace and production thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1944343A (en) | 2007-04-11 |
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