CN103755376B - Main iron runner pouring material of 1080 m<3> blast furnace - Google Patents
Main iron runner pouring material of 1080 m<3> blast furnace Download PDFInfo
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- CN103755376B CN103755376B CN201410051209.0A CN201410051209A CN103755376B CN 103755376 B CN103755376 B CN 103755376B CN 201410051209 A CN201410051209 A CN 201410051209A CN 103755376 B CN103755376 B CN 103755376B
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- aluminum
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 42
- 239000000463 material Substances 0.000 title claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 35
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 23
- 238000003723 Smelting Methods 0.000 claims abstract description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052596 spinel Inorganic materials 0.000 claims abstract description 13
- 239000011029 spinel Substances 0.000 claims abstract description 13
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 claims abstract description 13
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000725 suspension Substances 0.000 claims abstract description 12
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 12
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920000147 Styrene maleic anhydride Polymers 0.000 claims abstract description 11
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 9
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 5
- 239000010439 graphite Substances 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract 4
- 229910052681 coesite Inorganic materials 0.000 claims abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract 2
- 239000000377 silicon dioxide Substances 0.000 claims abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract 2
- 229910052682 stishovite Inorganic materials 0.000 claims abstract 2
- 229910052905 tridymite Inorganic materials 0.000 claims abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 15
- 229910001676 gahnite Inorganic materials 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 12
- 101710194948 Protein phosphatase PhpP Proteins 0.000 claims description 11
- 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 claims description 11
- 229910052708 sodium Inorganic materials 0.000 claims description 11
- 239000011734 sodium Substances 0.000 claims description 11
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 2
- 230000035939 shock Effects 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract 2
- 229910000611 Zinc aluminium Inorganic materials 0.000 abstract 1
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000011863 silicon-based powder Substances 0.000 abstract 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 238000004901 spalling Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 230000004941 influx Effects 0.000 description 3
- 239000007767 bonding agent Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 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 2
- 239000012535 impurity Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 229910052863 mullite Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910021392 nanocarbon Inorganic materials 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The invention relates to a main iron runner pouring material of a 1080 m<3> blast furnace and belongs to the field of fireproof pouring materials. The pouring material comprises the following components in parts by weight: 48-56 parts of magnesium-aluminum spinel, 1-8 parts of zirconium boride, 3-10 parts of metal silicon powder, 10-25 parts of zinc-aluminum spinel powder, 10-15 parts of a waste smelting furnace shell, 3-10 parts of strontium titanate powder, 1-2 parts of Guangxi mud, 1-5 parts of silicon nitride powder, 0.1-0.2 part of sodium tripolyphosphate, 0.05-0.2 part of styrene maleic anhydride and 3-8 parts of aluminum sol suspension liquid, wherein the waste smelting furnace shell is a furnace shell for producing graphite and mainly comprises 50%-68% of SiC, 10%-20% of C and 3%-10% of SiO2. A blast furnace iron runner prepared from the pouring material has the characteristics of good thermal shock property, good corrosion and stripping resistance, large iron flux and long service life.
Description
Technical field
The present invention relates to a kind of 1080m
3blast furnace main iron channel castable, belongs to metallurgical fire resisting material field.
Background technology
Existing main iron runner pouring material is mostly Al
2o
3-SiC-C matter mould material, but common Al
2o
3-SiC-C matter main iron runner pouring material uses on blast furnace, and disposable iron influx is at about 120,000 tons.Along with strengthening smelting, the demand improving hot metal output becomes increasingly conspicuous, and main iron hook requires that the demand that disposable iron influx is large is also more and more urgent, but main iron hook is because heat-shock resistance is poor at present, occurring thermal spalling and structure spalling, cause not anti-erosion, is main iron hook life-span short major reason.
CN102101782A discloses a kind of main iron runner pouring material, and described mould material is by alumina, Brown Alundum, silicon carbide, modified Nano carbon dust, SiO
2micro mist, aluminous cement, α-Al
2o
3micro mist, explosion-proof fiber, metallic silicon power, tripoly phosphate sodium STPP, Al (OH)
3with Mg (OH)
2complex sol suspension forms.But this take Brown Alundum as the mould material of principal constituent, heat-shock resistance is poor, easily causes thermal spalling and structure spalling, and main iron hook repairing work frequency is increased substantially, and produces and brings larger hidden danger, still need to improve to blast furnace stability and safety.
Summary of the invention
The object of this invention is to provide a kind of thermal shock resistance good, can resist molten iron preferably and corrode, minimizing is peeled off, a kind of Blast furnace main iron channel castable of long service life.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs: a kind of 1080m
3blast furnace main iron channel castable, described mould material is by aluminum-spinel, zirconium boride 99.5004323A8ure, metallic silicon power, gahnite powder, useless smelting furnace skin, strontium titanate powder, Guangxi mud, silicon nitride powder, additional tripoly phosphate sodium STPP, styrene-maleic anhydride, Alumina gel suspension form, it is characterized in that: the component comprising following parts by weight: aluminum-spinel 48-56, zirconium boride 99.5004323A8ure 1-8, metallic silicon power 3-10, gahnite powder 10-25, useless smelting furnace skin 10-15, strontium titanate powder 3-10, Guangxi mud 1-2, silicon nitride powder 1-5; Additional tripoly phosphate sodium STPP 0.1-0.2, styrene-maleic anhydride 0.05-0.2, Alumina gel suspension 3-8; Described useless smelting furnace skin is the stove skin producing graphite, and what it was main consists of SiC content 50-68%, C content 10-20%, SiO
2content 3-10%.
A kind of 1080m according to claim 1
3blast furnace main iron channel castable, is characterized in that: the quality index of described aluminum-spinel is: Al
2o
370-80%.
A kind of 1080m according to claim 1
3the main main iron runner pouring material of blast furnace, is characterized in that: the quality index of described gahnite powder is: ZnAl
2o
4>=90%.
A kind of 1080m according to claim 1
3blast furnace main iron channel castable, is characterized in that: the particle diameter of described strontium titanate is 10 ~ 20nm.
A kind of 1080m according to claim 1
3blast furnace main iron channel castable, is characterized in that: the granularity < of described metallic silicon power 10 microns.
A kind of 1080m according to claim 1
3blast furnace main iron channel castable, one of them proportioning is: aluminum-spinel 52, zirconium boride 99.5004323A8ure 8, metallic silicon power 3, gahnite powder 10, useless smelting furnace skin 15, strontium titanate powder 10, Guangxi mud 1, silicon nitride powder 1; Additional tripoly phosphate sodium STPP 0.1, styrene-maleic anhydride 0.05, Alumina gel suspension 3; Described useless smelting furnace skin is the stove skin producing graphite, and its main material consists of SiC content 50-68%, C content 10-20%, SiO
2content 3-10%.
The advantage of mould material of the present invention is: add strontium titanate powder in (1) formula, it is good that this material has thermal shock resistance, erosion-resisting characteristics is good, hardness is high, wear-resistant, can solve the problem that main iron hook peels off preferably, not the problem of resistance to erosion, this material can resist the erosion of detrimental impurity inside molten iron simultaneously; (2) add zirconium boride 99.5004323A8ure, both improve the heat-shock resistance of mould material, improve again the overall performance of mould material.(3) by introducing gahnite powder, the resistance to acids and bases of mould material can be improved; By adopting Alumina gel as bonding agent, mould material impurity can be made than use conventional cement few as bonding agent, system is pure, colloidal sol and matrix powder more easily generate mullite, mould material Medium Culture forms pin styloid, makes this product heat-shock resistance high, and mullite generates and belongs to microdilatancy structure simultaneously, avoid causing volumetric shrinkage in mould material use procedure, molten iron infiltrates thus destroys the phenomenon generation of structure influence product life; (4) by introducing zirconium boride 99.5004323A8ure, compound introduces tripoly phosphate sodium STPP, styrene-maleic anhydride, greatly can increase the mobility of mould material, improve the stability of mould material, decrease the amount of required admixture, improve the workability of mould material, also greatly improve the work-ing life of mould material simultaneously.(5) introduce the stove skin of smelting, erosion-resistant silicon carbide and graphite carbon can be provided, achieve the object of product, again reduce cost.
A kind of 1080m
3the preparation method of main trough of blast furnace, comprises step one, batching: weigh aluminum-spinel 48-56 by weight, zirconium boride 99.5004323A8ure 1-8, metallic silicon power 3-10, gahnite powder 10-25, useless smelting furnace skin 10-15, strontium titanate powder 3-10, Guangxi mud 1-2, silicon nitride powder 1-5; Additional tripoly phosphate sodium STPP 0.1-0.2, styrene-maleic anhydride 0.05-0.2, Alumina gel suspension 3-8; Stir after 5-8 minute, after natural curing 1-2 hour, the demoulding obtains main trough of blast furnace.
Preparation method of the present invention exempts from baking, when preparing main iron hook, construct after formula mould material and Alumina gel suspension agitation, through gravity flow or vibrating casting, can come into operation immediately after construction, be used in main trough of blast furnace, continuous tapping is without repairing, through comparing use on same blast furnace, iron influx reaches more than 150% of like product, and work-ing life is also longer.
Embodiment
1080m
3the formula 1 of Blast furnace main iron channel castable, comprises the component of following parts by weight: aluminum-spinel 50, zirconium boride 99.5004323A8ure 8, metallic silicon power 3, gahnite powder 24, useless smelting furnace skin 10, strontium titanate powder 3, Guangxi mud 1, silicon nitride powder 1; Additional tripoly phosphate sodium STPP 0.1, styrene-maleic anhydride 0.05, Alumina gel suspension 3.
1080m
3the formula 2 of Blast furnace main iron channel castable, comprises the component of following parts by weight: aluminum-spinel 51, zirconium boride 99.5004323A8ure 8, metallic silicon power 3, gahnite powder 11, useless smelting furnace skin 15, strontium titanate powder 10, Guangxi mud 1, silicon nitride powder 1; Additional tripoly phosphate sodium STPP 0.1, styrene-maleic anhydride 0.05, Alumina gel suspension 5.
1080m
3blast furnace goes out the formula 3 of main iron runner pouring material, comprises the component of following parts by weight: aluminum-spinel 52, zirconium boride 99.5004323A8ure 8, metallic silicon power 3, gahnite powder 20, useless smelting furnace skin 10, alumina powder 3, Guangxi mud 1, strontium titanate powder 1; Additional tripoly phosphate sodium STPP 0.1, styrene-maleic anhydride 0.05, Alumina gel suspension 6.
Embodiment one
Formula 1 is used to prepare 1080m
3main trough of blast furnace: prepare burden by formula 1 and stir after for mould material at stirrer, in the mould installed in the main iron hook that molten iron flows through, add mould material, the natural curing demoulding in 1 hour obtains main trough of blast furnace.
Embodiment two
Formula 2 is used to prepare 1080m
3main trough of blast furnace: prepare burden by formula 1 and stir after for mould material at stirrer, in the mould installed in the main iron hook that molten iron flows through, add mould material, the natural curing demoulding in 1 hour obtains main trough of blast furnace.
Embodiment three
Formula 3 is used to prepare 1080m
3main trough of blast furnace: prepare burden by formula 1 and stir after for mould material at stirrer, in the mould installed in the main iron hook that molten iron flows through, add mould material, the natural curing demoulding in 1 hour obtains main trough of blast furnace.Specific targets see the following form
This specific embodiment is only explanation of the invention; it is not limitation of the present invention; those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this specification sheets, as long as but be all subject to the protection of patent law in right of the present invention.
Claims (5)
1. a 1080m
3blast furnace main iron channel castable, described mould material is by aluminum-spinel, zirconium boride 99.5004323A8ure, metallic silicon power, gahnite powder, useless smelting furnace skin, strontium titanate powder, Guangxi mud, silicon nitride powder, additional tripoly phosphate sodium STPP, styrene-maleic anhydride, Alumina gel suspension form, it is characterized in that: the component comprising following parts by weight: aluminum-spinel 48-56, zirconium boride 99.5004323A8ure 1-8, metallic silicon power 3-10, gahnite powder 10-25, useless smelting furnace skin 10-15, strontium titanate powder 3-10, Guangxi mud 1-2, silicon nitride powder 1-5; Additional tripoly phosphate sodium STPP 0.1-0.2, styrene-maleic anhydride 0.05-0.2, Alumina gel suspension 3-8; Described useless smelting furnace skin is the stove skin producing graphite, and what it was main consists of SiC content 50-68%, C content 10-20%, SiO2 content 3-10%.
2. a kind of 1080m according to claim 1
3blast furnace main iron channel castable, is characterized in that: the quality index of described aluminum-spinel is: Al
2o
370-80%.
3. a kind of 1080m according to claim 1
3blast furnace main iron channel castable, is characterized in that: the particle diameter of described strontium titanate is 10 ~ 20nm.
4. a kind of 1080m according to claim 1
3blast furnace main iron channel castable, is characterized in that: the quality index of described gahnite powder is: ZnAl
2o
4>=90%.
5. a kind of 1080m according to claim 1
3blast furnace main iron channel castable, is characterized in that: the granularity < of described metallic silicon power 10 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051209.0A CN103755376B (en) | 2014-02-14 | 2014-02-14 | Main iron runner pouring material of 1080 m<3> blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051209.0A CN103755376B (en) | 2014-02-14 | 2014-02-14 | Main iron runner pouring material of 1080 m<3> blast furnace |
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| Publication Number | Publication Date |
|---|---|
| CN103755376A CN103755376A (en) | 2014-04-30 |
| CN103755376B true CN103755376B (en) | 2015-01-14 |
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ID=50522741
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|---|---|---|---|
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117024132A (en) * | 2023-09-28 | 2023-11-10 | 山东理工大学 | Magnesia-alumina spinel material and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767999A (en) * | 2009-11-17 | 2010-07-07 | 高树森 | Al2O3-MA-SiC-C refractory castable material with carbon wrapped by nano Al2O3-SiC film and preparation method thereof |
| CN102746012A (en) * | 2012-08-09 | 2012-10-24 | 山国强 | Castable for major iron runner of blast furnace larger than 2500m<3> |
-
2014
- 2014-02-14 CN CN201410051209.0A patent/CN103755376B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767999A (en) * | 2009-11-17 | 2010-07-07 | 高树森 | Al2O3-MA-SiC-C refractory castable material with carbon wrapped by nano Al2O3-SiC film and preparation method thereof |
| CN102746012A (en) * | 2012-08-09 | 2012-10-24 | 山国强 | Castable for major iron runner of blast furnace larger than 2500m<3> |
Non-Patent Citations (2)
| Title |
|---|
| 张唐文;李友胜;李楠;.结合剂对Al_2O_3-MgAl_2O_4-SiC-C质铁沟浇注料性能的影响.《耐火材料》.2006,(第4期),283-286. * |
| 李友胜.铝硅凝胶粉结合Al2O3-MgO质浇注料的性能研究.《武汉科技大学学报》.2008,第31卷(第3期),291-293. * |
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Denomination of invention: A 1080m3blast furnace main iron trench castable Granted publication date: 20150114 Pledgee: China Postal Savings Bank Co.,Ltd. Gongyi Branch Pledgor: Gongyi Fuxiang Industrial Co.,Ltd. Registration number: Y2024980013098 |