JP6065126B2 - 転炉操業方法 - Google Patents
転炉操業方法 Download PDFInfo
- Publication number
- JP6065126B2 JP6065126B2 JP2015550553A JP2015550553A JP6065126B2 JP 6065126 B2 JP6065126 B2 JP 6065126B2 JP 2015550553 A JP2015550553 A JP 2015550553A JP 2015550553 A JP2015550553 A JP 2015550553A JP 6065126 B2 JP6065126 B2 JP 6065126B2
- Authority
- JP
- Japan
- Prior art keywords
- converter
- frequency
- lance
- blowing
- hot metal
- 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.)
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- 238000000034 method Methods 0.000 title claims description 13
- 238000007664 blowing Methods 0.000 claims description 80
- 239000007789 gas Substances 0.000 claims description 52
- 239000002184 metal Substances 0.000 claims description 43
- 229910052751 metal Inorganic materials 0.000 claims description 43
- 230000001590 oxidative effect Effects 0.000 claims description 29
- 238000007670 refining Methods 0.000 claims description 29
- 238000005261 decarburization Methods 0.000 claims description 25
- 230000001133 acceleration Effects 0.000 claims description 8
- 239000011261 inert gas Substances 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 90
- 229910052742 iron Inorganic materials 0.000 description 44
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 38
- 229910001882 dioxygen Inorganic materials 0.000 description 37
- 239000000428 dust Substances 0.000 description 23
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 235000012255 calcium oxide Nutrition 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Images
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
- C21C5/46—Details or accessories
- C21C5/4673—Measuring and sampling devices
-
- 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
- C21C5/30—Regulating or controlling the blowing
- C21C5/35—Blowing from above and through the bath
-
- 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
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
-
- 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
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/02—Observation or illuminating devices
-
- 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
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/04—Arrangements of indicators or alarms
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Description
2 転炉
3 上吹きランス
4 底吹き羽口
5 溶銑
6 加速度計センサー
7 加速度計本体
8 制御用計算機
9 ランス高さ制御装置
10 酸素ガス流量制御装置
11 酸素ガス噴流
12 トラニオン軸
13 酸素ガス供給管
14 冷却水供給管
15 冷却水排出管
Claims (2)
- 転炉内の溶銑に上吹きランスから酸化性ガスを吹き付ける、または、上吹きランスから酸化性ガスを吹き付けるとともに底吹き羽口から酸化性ガスまたは不活性ガスを溶銑に吹き込んで溶銑の脱炭精錬を行う際に、
前記転炉の振動を測定し、該測定値を周波数解析することによって前記転炉の振動の周波数を脱炭精錬中に求め、
求めた転炉振動の周波数のうちで、振幅が最大となる周波数(fobs)が、下記の(1)式で算出される転炉の固有振動数(fcalc)よりも大きくなるように、上吹きランスから吹き付ける酸化性ガスの流量、上吹きランスのランス高さのうちの何れか一方または双方を調整する転炉操業方法。
- 前記測定値を高速フーリエ変換することで、前記転炉の振動の周波数を求めることを特徴とする、請求項1に記載の転炉操業方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013246076 | 2013-11-28 | ||
JP2013246076 | 2013-11-28 | ||
PCT/JP2014/005764 WO2015079646A1 (ja) | 2013-11-28 | 2014-11-18 | 転炉操業監視方法及び転炉操業方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP6065126B2 true JP6065126B2 (ja) | 2017-01-25 |
JPWO2015079646A1 JPWO2015079646A1 (ja) | 2017-03-16 |
Family
ID=53198621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015550553A Active JP6065126B2 (ja) | 2013-11-28 | 2014-11-18 | 転炉操業方法 |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP6065126B2 (ja) |
KR (2) | KR20160091397A (ja) |
CN (1) | CN105793444B (ja) |
BR (1) | BR112016012017B1 (ja) |
TW (1) | TWI572719B (ja) |
WO (1) | WO2015079646A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018207718A1 (ja) * | 2017-05-08 | 2018-11-15 | Jfeスチール株式会社 | 転炉の操業方法 |
JP2022519386A (ja) * | 2018-10-23 | 2022-03-23 | ナカノ,ジンイチロウ | 炉ランスの位置を制御する方法 |
CN111893237B (zh) * | 2020-07-08 | 2021-11-09 | 北京科技大学 | 一种转炉炼钢的熔池碳含量及温度全程实时预测方法 |
JP7400786B2 (ja) * | 2020-10-01 | 2023-12-19 | Jfeスチール株式会社 | 耐火物残存状況推定方法、耐火物残存状況推定装置および金属精錬炉 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5377816A (en) * | 1976-12-22 | 1978-07-10 | Nippon Steel Corp | Discriminating and controlling method for converter conditions in blowing |
JPS54114414A (en) * | 1978-02-28 | 1979-09-06 | Kawasaki Steel Co | Controlling of scum formation of converter |
JPS58213815A (ja) * | 1982-06-03 | 1983-12-12 | Kawasaki Steel Corp | 溶鋼の精錬過程管理方法 |
JPH01195232A (ja) * | 1988-01-29 | 1989-08-07 | Nippon Steel Corp | 含鉄冷材の溶解完了時期検知方法 |
JPH08269525A (ja) * | 1995-03-31 | 1996-10-15 | Sumitomo Metal Ind Ltd | 転炉のランス高さ制御方法 |
JPH11199916A (ja) * | 1998-01-19 | 1999-07-27 | Kawasaki Steel Corp | スラグレベル検知機能付き転炉、転炉精錬時のスラグレベル検知方法および金属鉱石の溶融還元方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09176719A (ja) * | 1995-12-26 | 1997-07-08 | Sumitomo Metal Ind Ltd | 転炉および吹錬操業方法 |
DE10253535A1 (de) * | 2002-11-16 | 2004-05-27 | Sms Demag Ag | Gaszuleitungssystem für einen metallurgischen Ofen sowie Betriebsverfahren hierzu |
CN101016576B (zh) * | 2007-02-26 | 2010-10-13 | 河北钢铁股份有限公司 | 氧气顶吹转炉基于氧枪振动的炉渣状态检测方法及装置 |
WO2011106023A1 (en) * | 2010-02-26 | 2011-09-01 | Nupro Corporation | System for furnace slopping prediction and lance optimization |
-
2014
- 2014-11-18 CN CN201480065046.XA patent/CN105793444B/zh not_active Expired - Fee Related
- 2014-11-18 BR BR112016012017-5A patent/BR112016012017B1/pt active IP Right Grant
- 2014-11-18 KR KR1020167017141A patent/KR20160091397A/ko active Application Filing
- 2014-11-18 JP JP2015550553A patent/JP6065126B2/ja active Active
- 2014-11-18 KR KR1020177033809A patent/KR102157415B1/ko active IP Right Grant
- 2014-11-18 WO PCT/JP2014/005764 patent/WO2015079646A1/ja active Application Filing
- 2014-11-27 TW TW103141108A patent/TWI572719B/zh not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5377816A (en) * | 1976-12-22 | 1978-07-10 | Nippon Steel Corp | Discriminating and controlling method for converter conditions in blowing |
JPS54114414A (en) * | 1978-02-28 | 1979-09-06 | Kawasaki Steel Co | Controlling of scum formation of converter |
JPS58213815A (ja) * | 1982-06-03 | 1983-12-12 | Kawasaki Steel Corp | 溶鋼の精錬過程管理方法 |
JPH01195232A (ja) * | 1988-01-29 | 1989-08-07 | Nippon Steel Corp | 含鉄冷材の溶解完了時期検知方法 |
JPH08269525A (ja) * | 1995-03-31 | 1996-10-15 | Sumitomo Metal Ind Ltd | 転炉のランス高さ制御方法 |
JPH11199916A (ja) * | 1998-01-19 | 1999-07-27 | Kawasaki Steel Corp | スラグレベル検知機能付き転炉、転炉精錬時のスラグレベル検知方法および金属鉱石の溶融還元方法 |
Non-Patent Citations (1)
Title |
---|
JPN6015003503; Christian WUPPERMANN、他3名: 'Physical and Mathematical Modeling of the Vessel Oscillation inthe AOD Process' ISIJ International Vol.53 No.3, 20130315, pp.441-449 * |
Also Published As
Publication number | Publication date |
---|---|
KR20160091397A (ko) | 2016-08-02 |
TW201525146A (zh) | 2015-07-01 |
CN105793444B (zh) | 2018-06-26 |
JPWO2015079646A1 (ja) | 2017-03-16 |
CN105793444A (zh) | 2016-07-20 |
TWI572719B (zh) | 2017-03-01 |
WO2015079646A1 (ja) | 2015-06-04 |
BR112016012017B1 (pt) | 2021-03-02 |
KR20170132347A (ko) | 2017-12-01 |
KR102157415B1 (ko) | 2020-09-17 |
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