JP7151815B1 - 鋼板の冷却水温度制御方法及び冷却水温度制御装置 - Google Patents
鋼板の冷却水温度制御方法及び冷却水温度制御装置 Download PDFInfo
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- JP7151815B1 JP7151815B1 JP2021064438A JP2021064438A JP7151815B1 JP 7151815 B1 JP7151815 B1 JP 7151815B1 JP 2021064438 A JP2021064438 A JP 2021064438A JP 2021064438 A JP2021064438 A JP 2021064438A JP 7151815 B1 JP7151815 B1 JP 7151815B1
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 181
- 239000010959 steel Substances 0.000 title claims abstract description 181
- 239000000498 cooling water Substances 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 238000001035 drying Methods 0.000 claims abstract description 56
- 238000001816 cooling Methods 0.000 claims abstract description 35
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- 238000000576 coating method Methods 0.000 claims abstract description 29
- 238000000137 annealing Methods 0.000 claims abstract description 19
- 238000001704 evaporation Methods 0.000 claims description 16
- 230000008020 evaporation Effects 0.000 claims description 16
- 238000012546 transfer Methods 0.000 description 14
- 238000010422 painting Methods 0.000 description 8
- 238000009834 vaporization Methods 0.000 description 8
- 230000008016 vaporization Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
- C21D11/005—Process control or regulation for heat treatments for cooling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5735—Details
- C21D9/5737—Rolls; Drums; Roll arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
- F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2252/00—Sheets
- B05D2252/02—Sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Control Of Metal Rolling (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Control Of Heat Treatment Processes (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
2 水切りロール
4 乾燥設備
5 塗装設備
6 循環ポンプ
7 チラー
8 除湿機
9 除湿空気
10 補給水
21 熱交換器
G 蒸気
S 鋼板
W 冷却水
Claims (2)
- 冷却水を用いて焼鈍後の鋼板を冷却する冷却設備と、前記冷却設備によって冷却された鋼板上の水膜を除去する水切りロールと、前記水切りロールの出側に配置された、鋼板を乾燥させる乾燥設備と、前記乾燥設備の出側に配置された、鋼板を塗装する塗装設備と、を備えるラインにおける冷却水の温度を制御する鋼板の冷却水温度制御方法であって、
前記水切りロールの出側において鋼板上に残る水膜の厚みを算出する第1ステップと、
ライン速度を考慮して前記水切りロールの出側から前記乾燥設備までの間の前記水膜の厚み及び鋼板の温度の変化を算出する第2ステップと、
ライン速度を考慮して前記乾燥設備における前記水膜の蒸発量及び前記鋼板の温度の変化を算出する第3ステップと、
前記第1~前記第3ステップの算出結果を用いて、鋼板上の水膜の厚みがゼロになる位置が前記乾燥設備の出側位置に一致する前記水切りロールの出側の鋼板温度を算出し、算出された鋼板温度を冷却水温度の下限値に設定する第4ステップと、
前記第1~前記第3ステップの算出結果を用いて、前記塗装設備の入側の鋼板温度が所定温度と一致する水切りロールの出側の鋼板温度を算出し、算出された鋼板温度を冷却水温度の上限値に設定する第5ステップと、
前記第4及び前記第5ステップにおいて設定された下限値及び上限値の範囲内に前記冷却水の温度を制御する第6ステップと、
を含むことを特徴とする鋼板の冷却水温度制御方法。 - 冷却水を用いて焼鈍後の鋼板を冷却する冷却設備と、前記冷却設備によって冷却された鋼板上の水膜を除去する水切りロールと、前記水切りロールの出側に配置された、鋼板を乾燥させる乾燥設備と、前記乾燥設備の出側に配置された、鋼板を塗装する塗装設備と、を備えるラインにおける冷却水の温度を制御する鋼板の冷却水温度制御装置であって、
前記水切りロールの出側において鋼板上に残る水膜の厚みを算出する第1手段と、
ライン速度を考慮して前記水切りロールの出側から前記乾燥設備までの間の前記水膜の厚み及び鋼板の温度の変化を算出する第2手段と、
ライン速度を考慮して前記乾燥設備における前記水膜の蒸発量及び前記鋼板の温度の変化を算出する第3手段と、
前記第1~前記第3手段の算出結果を用いて、鋼板上の水膜の厚みがゼロになる位置が前記乾燥設備の出側位置に一致する前記水切りロールの出側の鋼板温度を算出し、算出された鋼板温度を冷却水温度の下限値に設定する第4手段と、
前記第1~前記第3手段の算出結果を用いて、前記塗装設備の入側の鋼板温度が所定温度と一致する前記水切りロールの出側の鋼板温度を算出し、算出された鋼板温度を冷却水温度の上限値に設定する第5手段と、
前記第4及び前記第5手段において設定された下限値及び上限値の範囲内に前記冷却水の温度を制御する第6手段と、
を備えることを特徴とする鋼板の冷却水温度制御装置。
Priority Applications (4)
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JP2021064438A JP7151815B1 (ja) | 2021-04-05 | 2021-04-05 | 鋼板の冷却水温度制御方法及び冷却水温度制御装置 |
EP21936101.1A EP4269633A1 (en) | 2021-04-05 | 2021-12-27 | Method for controlling temperature of cooling water for steel plate and device for controlling temperature of cooling water |
US18/275,243 US20240102125A1 (en) | 2021-04-05 | 2021-12-27 | Cooling water temperature control method and cooling water temperature control device for steel sheet |
PCT/JP2021/048585 WO2022215304A1 (ja) | 2021-04-05 | 2021-12-27 | 鋼板の冷却水温度制御方法及び冷却水温度制御装置 |
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JP2021064438A JP7151815B1 (ja) | 2021-04-05 | 2021-04-05 | 鋼板の冷却水温度制御方法及び冷却水温度制御装置 |
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JP7151815B1 true JP7151815B1 (ja) | 2022-10-12 |
JP2022160708A JP2022160708A (ja) | 2022-10-20 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61136636A (ja) * | 1984-12-07 | 1986-06-24 | Nippon Kokan Kk <Nkk> | ストリップの連続焼鈍における冷却乾燥方法 |
JPS6221076U (ja) * | 1985-07-18 | 1987-02-07 | ||
JPH08193276A (ja) * | 1994-11-14 | 1996-07-30 | Kawasaki Steel Corp | 鋼帯の乾燥方法 |
JPH0942843A (ja) * | 1995-07-27 | 1997-02-14 | Kawasaki Steel Corp | 金属帯の乾燥方法及び装置 |
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JP3783640B2 (ja) | 2002-03-22 | 2006-06-07 | Jfeスチール株式会社 | 冷却方法および設備 |
JP6135575B2 (ja) | 2014-03-28 | 2017-05-31 | Jfeスチール株式会社 | 冷延鋼板の冷却方法および冷却設備ならびに冷延鋼板の製造方法 |
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- 2021-04-05 JP JP2021064438A patent/JP7151815B1/ja active Active
- 2021-12-27 US US18/275,243 patent/US20240102125A1/en active Pending
- 2021-12-27 EP EP21936101.1A patent/EP4269633A1/en active Pending
- 2021-12-27 WO PCT/JP2021/048585 patent/WO2022215304A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61136636A (ja) * | 1984-12-07 | 1986-06-24 | Nippon Kokan Kk <Nkk> | ストリップの連続焼鈍における冷却乾燥方法 |
JPS6221076U (ja) * | 1985-07-18 | 1987-02-07 | ||
JPH08193276A (ja) * | 1994-11-14 | 1996-07-30 | Kawasaki Steel Corp | 鋼帯の乾燥方法 |
JPH0942843A (ja) * | 1995-07-27 | 1997-02-14 | Kawasaki Steel Corp | 金属帯の乾燥方法及び装置 |
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EP4269633A1 (en) | 2023-11-01 |
WO2022215304A1 (ja) | 2022-10-13 |
US20240102125A1 (en) | 2024-03-28 |
JP2022160708A (ja) | 2022-10-20 |
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