JP2008115408A - 溶解装置 - Google Patents
溶解装置 Download PDFInfo
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- JP2008115408A JP2008115408A JP2006297098A JP2006297098A JP2008115408A JP 2008115408 A JP2008115408 A JP 2008115408A JP 2006297098 A JP2006297098 A JP 2006297098A JP 2006297098 A JP2006297098 A JP 2006297098A JP 2008115408 A JP2008115408 A JP 2008115408A
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- 238000002844 melting Methods 0.000 title claims abstract description 57
- 230000008018 melting Effects 0.000 title claims abstract description 57
- 239000002994 raw material Substances 0.000 claims abstract description 78
- 238000012800 visualization Methods 0.000 claims abstract description 28
- 238000004070 electrodeposition Methods 0.000 claims abstract description 15
- 238000009628 steelmaking Methods 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims description 31
- 239000011819 refractory material Substances 0.000 claims description 30
- 238000004364 calculation method Methods 0.000 claims description 11
- 230000020169 heat generation Effects 0.000 claims description 7
- 239000000155 melt Substances 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000011449 brick Substances 0.000 description 15
- 239000000463 material Substances 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- 239000006227 byproduct Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000725 suspension Substances 0.000 description 7
- 230000001174 ascending effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- 238000004090 dissolution Methods 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 239000011822 basic refractory Substances 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910001179 chromel Inorganic materials 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004503 fine granule Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- UPIXZLGONUBZLK-UHFFFAOYSA-N platinum Chemical compound [Pt].[Pt] UPIXZLGONUBZLK-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
-
- 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
- Y02P10/25—Process efficiency
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Discharge Heating (AREA)
- Resistance Heating (AREA)
- Manufacture Of Iron (AREA)
- Furnace Details (AREA)
- Control Of Resistance Heating (AREA)
Abstract
【課題】 溶解効率と電力原単位とに優れる溶解装置を提供する。
【解決手段】 電気抵抗炉11は、製鋼に用いられる原料に通電し抵抗発熱を利用して溶解する。可視化装置12は、電気抵抗炉11に設けられる熱電対23で検出される温度を用いて熱伝導計算を行い、炉壁に原料が固着して生成される塊状物8の溶融温度の炉体内における位置を算出し、該位置を連ねて形成される炉内プロフィール20を作成する。さらに可視化装置12は、炉内プロフィール20と、電極長さおよび電極昇降装置21の動作に基づいて推定される炉体内の電極位置とを図形化し、その図形を可視像として表示する。
【選択図】 図1
Description
溶解装置10は、電気抵抗炉11と、可視化装置12とを含む。可視化装置12は、後述するように炉内プロフィール20を作成して表示する。なお、本実施形態の電気抵抗炉11で、図11に示す電気抵抗炉1と対応する部分については同一の参照符号を付し、重複する説明を省略する。
Q=K・ΔT ・・・(1)
ここで、 K:熱貫流率
ΔT:各層の表裏間の温度差[deg]
Q:熱流量[Kcal/m2・h]
1/K=b1/λ1+b2/λ2 ・・・(2)
Q=K・(t3−t1) ・・・(3)
Q=λ2/b2・(t3−t2) ・・・(4)
Q=λ3/b3・(t4−t3) ・・・(5)
Q=λ4/b4・(t5−t4) ・・・(6)
Q=λ5/b5・(1200−t5)・・・(7)
Q=λ4/bx・(1200−t4)・・・(8)
L=(0.25+b3+b4+b5)・・・(9)
L=(0.25+b3+bx) ・・・(10)
1/K=0.065/0.84+0.115/0.92からK=4.9、
Q=4.9(679.8−266.8)からQ=2023.7である。
3 耐火材
4 炉体
5 電極
8 クラスト
10 溶解装置
12,61 可視化装置
21 電極昇降装置
22 昇降量測定器
23 熱電対
31 炉内プロフィール作成装置
32 図形処理装置
33 表示装置
62 マイクロコンピュータ
Claims (3)
- 製鋼に用いられる原料に通電し抵抗発熱を利用して溶解するための電気抵抗炉と、電気抵抗炉の内部状況を可視化するための可視化装置とを備える溶解装置であって、
電気抵抗炉は、
上方に向かって開口部が形成され内面が耐火材によって内張りされる炉体と、
開口部から炉体の内部へ挿入され炉体内の原料に通電するための複数の棒状電極と、
電極を昇降させる電極昇降手段と、
炉体内の周方向において複数設けられるとともに、電極の昇降方向に少なくとも電極昇降範囲にわたって複数設けられ、かつ炉体に内張りされる耐火材の厚さ方向に複数が設けられて温度を検出する温度センサとを含み、
可視化装置は、
温度センサで検出される温度を用いて熱伝導計算を行うことによって、耐火材で構成される炉壁に原料が固着して生成される塊状物の溶融温度として予め定められる温度の炉体内における位置を算出し、該位置を連ねて形成される炉内プロフィールを作成する炉内プロフィール作成手段と、
炉内プロフィール作成手段によって作成される炉内プロフィールと、電極長さおよび電極昇降手段の動作に基づいて推定される炉体内の電極位置とを図形化する図形処理手段と、
図形処理手段によって形成される図形を表示する表示手段と、を含むことを特徴とする溶解装置。 - 可視化装置において、
図形処理手段は、炉内プロフィールと炉体内の電極位置とを集合して1つの図形を形成し、表示手段は、該図形を表示することを特徴とする請求項1記載の溶解装置。 - 可視化装置は、炉内プロフィールと炉体内の電極位置とに基づいて電極昇降手段の動作を制御する制御手段を含むことを特徴とする請求項1または2記載の溶解装置。
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JP2006297098A JP4974351B2 (ja) | 2006-10-31 | 2006-10-31 | 溶解装置 |
JP2010075592A JP5137990B2 (ja) | 2006-10-31 | 2010-03-29 | 電気抵抗炉の操業方法 |
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JP2006297098A JP4974351B2 (ja) | 2006-10-31 | 2006-10-31 | 溶解装置 |
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JP2010075592A Division JP5137990B2 (ja) | 2006-10-31 | 2010-03-29 | 電気抵抗炉の操業方法 |
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JP2008115408A true JP2008115408A (ja) | 2008-05-22 |
JP4974351B2 JP4974351B2 (ja) | 2012-07-11 |
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JP2010075592A Active JP5137990B2 (ja) | 2006-10-31 | 2010-03-29 | 電気抵抗炉の操業方法 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009095292A1 (de) * | 2008-01-31 | 2009-08-06 | Siemens Aktiengesellschaft | Verfahren zum betreiben eines lichtbogenofens mit wenigstens einer elektrode, regel- und/oder steuerungseinrichtung, maschinenlesbarer programmcode, datenträger und lichtbogenofen zur durchführung des verfahrens |
WO2011036071A1 (de) * | 2009-09-28 | 2011-03-31 | Siemens Aktiengesellschaft | Verfahren zur kontrolle eines schmelzvorganges in einem lichtbogenofen sowie signalverarbeitungseinrichtung, programmcode und speichermedium zur durchführung dieses verfahrens |
US8412474B2 (en) | 2008-01-31 | 2013-04-02 | Siemens Aktiengesellschaft | Method for determining a radiation measurement for thermal radiation, arc furnace, a signal processing device programme code and storage medium for carrying out said method |
US8410800B2 (en) | 2008-01-31 | 2013-04-02 | Siemens Aktiengesellschaft | Method for determining the size and shape measure of a solid material in an arc furnace, an arc furnace, a signal processing device and program code and a memory medium |
JP2013067834A (ja) * | 2011-09-22 | 2013-04-18 | Jfe Steel Corp | 高炉の操業方法 |
JP2016090139A (ja) * | 2014-11-05 | 2016-05-23 | 大同特殊鋼株式会社 | 溶融金属の製造方法 |
WO2016093197A1 (ja) * | 2014-12-12 | 2016-06-16 | K2システム有限会社 | 電気抵抗炉の運用方法 |
Families Citing this family (3)
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KR101617255B1 (ko) * | 2010-09-30 | 2016-05-02 | 가부시키가이샤 아이에이치아이 | 흑연화 노 및 흑연을 제조하는 방법 |
JP5654947B2 (ja) * | 2011-05-31 | 2015-01-14 | 株式会社Ihi | 黒鉛化炉および黒鉛の生成方法 |
CN103900375B (zh) * | 2014-04-18 | 2016-01-20 | 大连理工大学 | 电弧炉冶炼电熔镁预防喷炉系统及方法 |
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JPS58173379A (ja) * | 1982-03-31 | 1983-10-12 | 新日本製鐵株式会社 | スラグ溶解炉およびスラグ溶解方法 |
JPH06201266A (ja) * | 1993-01-07 | 1994-07-19 | Ishikawajima Harima Heavy Ind Co Ltd | 直流アーク炉 |
JPH0967607A (ja) * | 1995-08-28 | 1997-03-11 | Sumitomo Metal Ind Ltd | 高炉の炉底監視方法 |
JPH09112849A (ja) * | 1995-10-13 | 1997-05-02 | Nippon Steel Corp | 灰処理用電気抵抗溶融炉の運転方法及び灰処理用電気抵抗溶融炉 |
JPH10330824A (ja) * | 1997-05-29 | 1998-12-15 | Sumitomo Metal Ind Ltd | 電気炉の操業方法 |
JP2001207208A (ja) * | 2000-01-26 | 2001-07-31 | Nkk Corp | 冷鉄源の溶解方法 |
JP2004003800A (ja) * | 2002-04-11 | 2004-01-08 | Nippon Steel Corp | 反応容器の操業管理方法、装置、コンピュータプログラム、及びコンピュータ読み取り可能な記憶媒体 |
Family Cites Families (3)
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JPS5760037A (en) * | 1980-09-30 | 1982-04-10 | Rubobitsuchi Roze Buradeimiiru | Method and apparatus for refining ore material in arc furnace |
JPH079023B2 (ja) * | 1988-06-06 | 1995-02-01 | 日新製鋼株式会社 | 電気製銑における含クロム銑の脱硫方法 |
JPH03267686A (ja) * | 1990-03-19 | 1991-11-28 | Kawasaki Steel Corp | 直流電気炉の電極位置調整装置 |
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2006
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2010
- 2010-03-29 JP JP2010075592A patent/JP5137990B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS58173379A (ja) * | 1982-03-31 | 1983-10-12 | 新日本製鐵株式会社 | スラグ溶解炉およびスラグ溶解方法 |
JPH06201266A (ja) * | 1993-01-07 | 1994-07-19 | Ishikawajima Harima Heavy Ind Co Ltd | 直流アーク炉 |
JPH0967607A (ja) * | 1995-08-28 | 1997-03-11 | Sumitomo Metal Ind Ltd | 高炉の炉底監視方法 |
JPH09112849A (ja) * | 1995-10-13 | 1997-05-02 | Nippon Steel Corp | 灰処理用電気抵抗溶融炉の運転方法及び灰処理用電気抵抗溶融炉 |
JPH10330824A (ja) * | 1997-05-29 | 1998-12-15 | Sumitomo Metal Ind Ltd | 電気炉の操業方法 |
JP2001207208A (ja) * | 2000-01-26 | 2001-07-31 | Nkk Corp | 冷鉄源の溶解方法 |
JP2004003800A (ja) * | 2002-04-11 | 2004-01-08 | Nippon Steel Corp | 反応容器の操業管理方法、装置、コンピュータプログラム、及びコンピュータ読み取り可能な記憶媒体 |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009095292A1 (de) * | 2008-01-31 | 2009-08-06 | Siemens Aktiengesellschaft | Verfahren zum betreiben eines lichtbogenofens mit wenigstens einer elektrode, regel- und/oder steuerungseinrichtung, maschinenlesbarer programmcode, datenträger und lichtbogenofen zur durchführung des verfahrens |
US8412474B2 (en) | 2008-01-31 | 2013-04-02 | Siemens Aktiengesellschaft | Method for determining a radiation measurement for thermal radiation, arc furnace, a signal processing device programme code and storage medium for carrying out said method |
US8410800B2 (en) | 2008-01-31 | 2013-04-02 | Siemens Aktiengesellschaft | Method for determining the size and shape measure of a solid material in an arc furnace, an arc furnace, a signal processing device and program code and a memory medium |
US9175359B2 (en) | 2008-01-31 | 2015-11-03 | Siemens Aktiengesellschaft | Method for operating an arc furnace comprising at least one electrode, regulating and/or control device, machine-readable program code, data carrier and arc furnace for carrying out said method |
WO2011036071A1 (de) * | 2009-09-28 | 2011-03-31 | Siemens Aktiengesellschaft | Verfahren zur kontrolle eines schmelzvorganges in einem lichtbogenofen sowie signalverarbeitungseinrichtung, programmcode und speichermedium zur durchführung dieses verfahrens |
US9370053B2 (en) | 2009-09-28 | 2016-06-14 | Siemens Aktiengesellschaft | Method for controlling a melt process in an arc furnace and signal processing component, program code and data medium for performing said method |
JP2013067834A (ja) * | 2011-09-22 | 2013-04-18 | Jfe Steel Corp | 高炉の操業方法 |
JP2016090139A (ja) * | 2014-11-05 | 2016-05-23 | 大同特殊鋼株式会社 | 溶融金属の製造方法 |
WO2016093197A1 (ja) * | 2014-12-12 | 2016-06-16 | K2システム有限会社 | 電気抵抗炉の運用方法 |
JP2016114272A (ja) * | 2014-12-12 | 2016-06-23 | K2システム有限会社 | 電気抵抗炉の運用方法 |
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JP4974351B2 (ja) | 2012-07-11 |
JP2010189766A (ja) | 2010-09-02 |
JP5137990B2 (ja) | 2013-02-06 |
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