JP6294566B2 - 電気アーク炉内の金属溶融物の温度を決定するためのシステム及び方法 - Google Patents
電気アーク炉内の金属溶融物の温度を決定するためのシステム及び方法 Download PDFInfo
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- 239000002184 metal Substances 0.000 title claims description 61
- 238000000034 method Methods 0.000 title claims description 14
- 238000010891 electric arc Methods 0.000 title claims description 12
- 238000010079 rubber tapping Methods 0.000 claims description 35
- 238000002844 melting Methods 0.000 claims description 15
- 230000008018 melting Effects 0.000 claims description 15
- 239000002893 slag Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 239000000779 smoke Substances 0.000 claims description 13
- 238000009529 body temperature measurement Methods 0.000 claims description 10
- 239000011261 inert gas Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000000155 melt Substances 0.000 description 19
- 238000005259 measurement Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 239000007769 metal material Substances 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009847 ladle furnace Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009845 electric arc furnace steelmaking Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000003923 scrap metal Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/28—Arrangement of controlling, monitoring, alarm or the like devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
- B01F33/451—Magnetic mixers; Mixers with magnetically driven stirrers wherein the mixture is directly exposed to an electromagnetic field without use of a stirrer, e.g. for material comprising ferromagnetic particles or for molten metal
-
- 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
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
- C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
-
- 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
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5241—Manufacture of steel in electric furnaces in an inductively heated furnace
- C21C5/5247—Manufacture of steel in electric furnaces in an inductively heated furnace processing a moving metal stream while exposed to an electromagnetic field, e.g. in an electromagnetic counter current channel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces heated electrically, with or without any other source of heat
- F27B3/085—Arc furnaces
-
- 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
- F27D21/0014—Devices for monitoring temperature
-
- 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
- F27D27/00—Stirring devices for molten material
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/15—Tapping equipment; Equipment for removing or retaining slag
- F27D3/1509—Tapping equipment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0044—Furnaces, ovens, kilns
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/18—Heating by arc discharge
-
- 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
- C21C5/52—Manufacture of steel in electric furnaces
- C21C2005/5288—Measuring or 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
- C21C2300/00—Process aspects
- C21C2300/06—Modeling of the process, e.g. for control purposes; CII
-
- 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
- F27D19/00—Arrangements of controlling devices
- F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Electromagnetism (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Description
a)スクラップを溶融するために電力を電極に供給することと、
b)EAF内で金属溶融物を電磁撹拌することと、
c)ガスの流れによって、金属溶融物の表面からスラグ及び煙層を吹き払うことと、
d)金属溶融物の温度を非接触的に測定することと、
e)測定された温度を受信することと、
f)受信された温度に基づいて、温度プロファイルを計算することと、
g)計算された温度プロファイルに基づいて、ある時点でのタッピング温度を推定することと、
h)推定された温度、目標タッピング温度、及び電極に供給された電力に基づいて、タッピング時間を決定することと
を含む方法がある。
Claims (6)
- 電気アーク炉(EAF)内の金属溶融物のためのタッピング時間を決定または予測するための方法であって、前記金属溶融物が目標タッピング温度に達するまで前記金属溶融物を溶融するために、少なくとも1つの電極が設けられ、前記EAFが、前記金属溶融物の表面上にスラグ及び煙層をさらに含み、電磁攪拌器が、前記金属溶融物を撹拌するために設けられており、前記方法が、
a)スクラップを金属溶融物へ溶融するために電力を前記電極に供給すること(S10)と、
b)前記EAF内で前記金属溶融物を電磁撹拌すること(S20)と、
c)不活性ガスを含むように専用に構成されたランスユニットを配置すること(S25)と、
d)前記専用に配置されたランスユニットによって、前記金属溶融物の前記表面から前記スラグ及び煙を吹き払うこと(S30)と、
e)前記金属溶融物の温度を非接触的に測定すること(S40)と、
f)前記測定された温度を受信すること(S50)と、
g)前記受信された温度に基づいて、温度プロファイルを計算すること(S60)と、
h)前記計算された温度プロファイルに基づいて、ある時点でのタッピング温度を推定または予測すること(S70)と、
i)前記推定された温度、前記目標タッピング温度、及び前記電極に供給された前記電力に基づいて、タッピング時間を決定すること(S80)と
を含む方法。 - j)新しく測定された温度を受信すると、前記温度プロファイルを再計算または調節すること(S60’)と、
k)前記再計算または調節された温度プロファイルに基づいて、ある時点でのタッピング温度を推定または予測すること(S70’)と、
l)前記推定された温度、前記目標タッピング温度、及び前記電極に供給された前記電力に基づいて、タッピング時間を決定すること(S80)と
を含む、請求項1に記載の方法。 - 電気アーク炉(20)内の金属溶融物(21)のタッピング時間を決定または予測するためのシステム(1)であって、前記金属溶融物を撹拌するために設けられた電磁攪拌器(30)と、前記金属溶融物の温度測定値を供給するための温度測定装置(40)と、温度制御ユニット(50)とを備えており、前記電気アーク炉(20)が、電源(26、P)に接続された少なくとも1つの電極(22)を含み、前記温度制御ユニット(50)が、前記電極に供給された前記電力に基づいて、前記金属溶融物の温度を制御するように構成され、前記温度測定装置(40)が、非接触センサユニット(42)と、前記センサユニットに接続された処理ユニット(44)とを備え、前記センサユニット(42)が、前記金属溶融物の温度を感知または測定し、且つ前記測定された温度を前記処理ユニット(44)に送信するように構成され、前記処理ユニット(44)が、前記測定された温度を受信し、且つ前記受信された温度を処理するように構成されているシステムにおいて、前記温度測定装置(40)が、前記金属溶融物(21)の表面上のスラグ及び煙層(23、23’)を吹き払うように供給される不活性ガスを含む専用ランス(46)ユニットを備え、前記処理ユニット(44)が、前記処理された測定温度を前記温度制御ユニット(50)に送信するようにさらに構成され、前記温度制御ユニット(50)が、請求項1に記載のステップf)−i)を実行するように構成されていることを特徴とする、システム。
- 前記温度制御ユニット(50)が、新しい温度測定値に基づいて、前記温度プロファイルを再計算するようにさらに構成されている、請求項3に記載のシステム。
- 前記センサユニット(42)が、マイクロ波放射計、赤外線センサ、又は光ファイバセンサの形態で非接触センサを備えている、請求項3に記載のシステム。
- 前記温度測定装置(40)が、前記金属溶融物の温度を連続的に又は不連続な時点で測定するように構成されている、請求項3に記載のシステム。
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PCT/EP2014/067806 WO2016026530A1 (en) | 2014-08-21 | 2014-08-21 | A system and a method for determining temperature of a metal melt in an electric arc furnace |
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US10921060B2 (en) | 2017-02-10 | 2021-02-16 | Abb Schweiz Ag | Furnace assembly for a metal-making process |
CN109425439B (zh) * | 2017-08-25 | 2020-11-17 | 宝山钢铁股份有限公司 | 一种钢铸界面钢液温降在线预测***及其预测方法 |
CN108796238B (zh) * | 2018-07-04 | 2019-07-19 | 上海大学 | 一种静磁软接触搅拌复合等离子体电弧熔炼装置及方法 |
CN110907039A (zh) * | 2019-11-30 | 2020-03-24 | 广东韶钢松山股份有限公司 | 一种管系温度检测***及检测方法 |
CN111325408B (zh) * | 2020-03-09 | 2022-05-17 | 浙江大学 | 一种面向铝压铸熔炉的工艺参数节能优化方法 |
EP4009020A1 (en) * | 2020-12-02 | 2022-06-08 | Heraeus Electro-Nite International N.V. | Method and system for determining a series of temperature values of a molten metal bath |
EP4009021A1 (en) * | 2020-12-02 | 2022-06-08 | Heraeus Electro-Nite International N.V. | Method and system for determining a series of temperature values of a molten metal bath |
CN113604630A (zh) * | 2021-07-28 | 2021-11-05 | 北京科技大学 | 一种电弧炉炼钢终点控制方法 |
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