RU2015111864A - METHOD FOR FORMING A PROTECTIVE SKILL ON THE SURFACE OF THE OXYGEN CONVERTER LAYING AND A MAGNESIUM BRIQUETTED FLUX (MBF) FOR ITS IMPLEMENTATION - Google Patents
METHOD FOR FORMING A PROTECTIVE SKILL ON THE SURFACE OF THE OXYGEN CONVERTER LAYING AND A MAGNESIUM BRIQUETTED FLUX (MBF) FOR ITS IMPLEMENTATION Download PDFInfo
- Publication number
- RU2015111864A RU2015111864A RU2015111864A RU2015111864A RU2015111864A RU 2015111864 A RU2015111864 A RU 2015111864A RU 2015111864 A RU2015111864 A RU 2015111864A RU 2015111864 A RU2015111864 A RU 2015111864A RU 2015111864 A RU2015111864 A RU 2015111864A
- Authority
- RU
- Russia
- Prior art keywords
- flux
- converter
- magnesian
- lining
- dolomite
- Prior art date
Links
- 230000004907 flux Effects 0.000 title claims abstract 13
- 230000001681 protective effect Effects 0.000 title claims abstract 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract 3
- 238000000034 method Methods 0.000 title claims abstract 3
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract 3
- 239000001301 oxygen Substances 0.000 title claims abstract 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title 1
- 229910052749 magnesium Inorganic materials 0.000 title 1
- 239000011777 magnesium Substances 0.000 title 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract 30
- 235000012245 magnesium oxide Nutrition 0.000 claims abstract 15
- 239000000395 magnesium oxide Substances 0.000 claims abstract 15
- 239000000203 mixture Substances 0.000 claims abstract 12
- 229910052799 carbon Inorganic materials 0.000 claims abstract 10
- 229910000514 dolomite Inorganic materials 0.000 claims abstract 10
- 239000010459 dolomite Substances 0.000 claims abstract 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract 7
- 239000004484 Briquette Substances 0.000 claims abstract 6
- 239000002893 slag Substances 0.000 claims abstract 6
- 238000005266 casting Methods 0.000 claims abstract 5
- 238000002844 melting Methods 0.000 claims abstract 5
- 230000008018 melting Effects 0.000 claims abstract 5
- 210000003625 skull Anatomy 0.000 claims abstract 5
- 238000007664 blowing Methods 0.000 claims abstract 4
- 238000003723 Smelting Methods 0.000 claims abstract 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract 2
- 239000000654 additive Substances 0.000 claims abstract 2
- 230000000996 additive effect Effects 0.000 claims abstract 2
- 239000007789 gas Substances 0.000 claims abstract 2
- 230000007935 neutral effect Effects 0.000 claims abstract 2
- 239000002245 particle Substances 0.000 claims abstract 2
- 239000003923 scrap metal Substances 0.000 claims abstract 2
- 239000010959 steel Substances 0.000 claims abstract 2
- 239000011230 binding agent Substances 0.000 claims 4
- 239000004568 cement Substances 0.000 claims 3
- 229920001732 Lignosulfonate Polymers 0.000 claims 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 2
- 229920002472 Starch Polymers 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 235000013379 molasses Nutrition 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/44—Refractory linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings ; Increasing the durability of linings; Breaking away linings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
1. Способ формирования защитного гарнисажа на поверхности футеровки конвертера, включающий оставление в конвертере конечного шлака, предварительный раздув конечного шлака кислородом и присадку в конвертер брикетированного магнезиального флюса с последующим раздувом, модифицированного флюсом конечного шлака, нейтральным газом, отличающийся тем, что между торкретированиями дополнительно производят присадку магнезиального брикетированного флюса в подаваемую в конвертер завалку на металлический лом, при этом на каждом этапе флюс присаживают в количестве 800-2400 кг/операцию или 2,7-8,0 кг/т стали, торкретирование и плавку производят при температурах 1580-1680°C, а в качестве магнезиального брикетированного флюса используют композицию, включающую магнезиальный компонент, содержащий периклазоуглерод, в виде лома отработанной футеровки плавильных и разливочных агрегатов и доломит, при соотношении, мас.% 55-85 магнезиальный компонент, содержащий периклазоуглерод, 15-45 доломит, причем фракционный состав композиции формируют, в мас.%: 70-85 фр. 0<2 мм, фр. 2<5 мм - остальное.2. Магнезиальный брикетированный флюс для формирования защитного гарнисажа на поверхности футеровки конвертера, включающий магнезиальные компоненты и доломит, отличающийся тем, что в качестве магнезиальных компонентов используют лом отработанной футеровки плавильных и разливочных агрегатов при соотношении, мас.% 55-85 магнезиальный компонент, содержащий периклазоуглерод, 15-45 доломит, причем фракционный состав композиции формируют, в мас.%: 70-85 фр. 0<2 мм, фр. 2<5 мм - остальное.3. Брикет для формирования защитного гарнисажа на поверхности футеровки конвертера, в виде спрессованных частиц, включающий1. The method of forming a protective skull on the surface of the lining of the converter, including leaving the final slag in the converter, pre-blowing the final slag with oxygen and adding a briquette of magnesia flux to the converter, followed by blowing, modified with the final slag flux, neutral gas, characterized in that between shotcreting they additionally produce an additive of magnesia briquetted flux to scrap metal fed to the converter, and at each stage the flux is added they are inoculated in the amount of 800-2400 kg / operation or 2.7-8.0 kg / t of steel, shotcreting and smelting are performed at temperatures of 1580-1680 ° C, and as a magnesia briquetted flux, a composition comprising a magnesia component containing periclase carbon is used, in the form of scrap spent lining of melting and casting units and dolomite, with a ratio of wt.% 55-85 magnesian component containing periclase carbon, 15-45 dolomite, and the fractional composition of the composition is formed, in wt.%: 70-85 fr. 0 <2 mm, fr. 2 <5 mm - the rest. 2. Magnesian briquetted flux for forming a protective scull on the surface of the converter lining, including magnesian components and dolomite, characterized in that scrap waste lining of melting and casting units is used as magnesian components at a ratio, wt.% 55-85, magnesian component containing periclase carbon, 15 -45 dolomite, and the fractional composition of the composition is formed, in wt.%: 70-85 fr. 0 <2 mm, fr. 2 <5 mm - the rest. 3. Briquette for forming a protective skull on the surface of the lining of the converter, in the form of compressed particles, including
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2015111864A RU2606351C2 (en) | 2015-04-01 | 2015-04-01 | Method of protective scull forming on oxygen converter lining surface and magnesian briquetted flux (mbf) for its implementation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2015111864A RU2606351C2 (en) | 2015-04-01 | 2015-04-01 | Method of protective scull forming on oxygen converter lining surface and magnesian briquetted flux (mbf) for its implementation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2015111864A true RU2015111864A (en) | 2016-10-20 |
| RU2606351C2 RU2606351C2 (en) | 2017-01-10 |
Family
ID=57138239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2015111864A RU2606351C2 (en) | 2015-04-01 | 2015-04-01 | Method of protective scull forming on oxygen converter lining surface and magnesian briquetted flux (mbf) for its implementation |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2606351C2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116871301A (en) * | 2023-07-07 | 2023-10-13 | 西安科技大学 | Magnesium slag harmless disposal method and disposal system |
| CN118853994A (en) * | 2024-08-14 | 2024-10-29 | 山东钢铁股份有限公司 | Converter steel tapping method and converter steel tapping powder spraying device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2723340C1 (en) * | 2019-10-31 | 2020-06-09 | Публичное акционерное общество "Северсталь" (ПАО "Северсталь") | Method for continuous casting of steel into billets of small cross-section |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726665A (en) * | 1969-10-15 | 1973-04-10 | C & W Corson H Inc | Slagging in basic steel-making process |
| AT385771B (en) * | 1986-06-16 | 1988-05-10 | Voest Alpine Ag | METHOD FOR COVERING THE FIREPROOF LINING OF A METALLURGICAL MELTING FURNACE WITH A HEAT-RESISTANT MATERIAL |
| RU2132392C1 (en) * | 1997-12-22 | 1999-06-27 | Акционерное общество "Новолипецкий металлургический комбинат" | Method for repairing converter lining |
| RU2131467C1 (en) * | 1998-01-21 | 1999-06-10 | Открытое акционерное общество "Северсталь" | Process of reclamation of lining of converter |
| UA73050C2 (en) * | 2005-02-11 | 2005-05-16 | Dvs Company Ltd Ltd Liability | A method for making steel in converter |
| RU2288958C1 (en) * | 2005-06-14 | 2006-12-10 | ОАО "Уральский институт металлов" | Method for smelting steel in converter |
| RU2294379C1 (en) * | 2005-10-05 | 2007-02-27 | ОАО "Уральский институт металлов" | Method of deposition of the wall accretion on the converter brick-lining |
-
2015
- 2015-04-01 RU RU2015111864A patent/RU2606351C2/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116871301A (en) * | 2023-07-07 | 2023-10-13 | 西安科技大学 | Magnesium slag harmless disposal method and disposal system |
| CN118853994A (en) * | 2024-08-14 | 2024-10-29 | 山东钢铁股份有限公司 | Converter steel tapping method and converter steel tapping powder spraying device |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2606351C2 (en) | 2017-01-10 |
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