WO2014177679A1 - Warmwalzwerk - Google Patents
Warmwalzwerk Download PDFInfo
- Publication number
- WO2014177679A1 WO2014177679A1 PCT/EP2014/058963 EP2014058963W WO2014177679A1 WO 2014177679 A1 WO2014177679 A1 WO 2014177679A1 EP 2014058963 W EP2014058963 W EP 2014058963W WO 2014177679 A1 WO2014177679 A1 WO 2014177679A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mill according
- rolling mill
- thermal insulation
- hot rolling
- rolling
- Prior art date
Links
- 238000005098 hot rolling Methods 0.000 title claims abstract description 26
- 238000005096 rolling process Methods 0.000 claims abstract description 67
- 238000009413 insulation Methods 0.000 claims description 56
- 230000001681 protective effect Effects 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/008—Heat shields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
-
- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Definitions
- the invention relates to a hot rolling mill, comprising a finishing train for finish rolling a rolling stock, in particular a belt, wherein the finishing train has a number of rolling stands, which follow in a conveying direction of the rolling stock.
- thermal insulation hoods are used, which are arranged above or below or next to the warm product. It is known to use in a hot strip mill heat insulation hoods for the roller table between pre-and finishing mill. Reference is made to EP 0 005 340 B1, to EP 0 059 093 B1, to US Pat. No. 4,595,358 and to US Pat. No. 5,717,117, where corresponding thermal insulation elements are described. These documents also describe how thermal insulation elements can be designed to make them efficient and robust.
- the invention has the object of developing a hot rolling mill so that the strip temperature and rolling force level can be improved during finish rolling.
- the solution of this problem by the invention is characterized in that at least between two successive in the conveying direction rolling stands at least one thermal insulation element is arranged, with which the rolling stock can be shielded against heat loss.
- thermal insulation elements are arranged between all rolling mills of the finishing train.
- the distance between two rolling stands in the conveying direction is preferably less than 25 m, preferably even less than 7 m.
- a length range of at least 25% of the distance between two rolling stands is provided with at least one heat-insulating element.
- practically the entire distance between the rolling stands is preferably provided with thermal insulation elements.
- the at least one thermal insulation element or parts thereof may be directly attached to the rolling stand or integrated in this or be attached to a scaffold mounting part.
- At least one protective element may be arranged between the thermal insulation element and the rolling stock or next to the thermal insulation element, in particular in the form of a rib or a strip.
- the protective element may be connected to the thermal insulation element.
- the at least one protective element preferably consists of a temperature-resistant material.
- the at least one protective element may further be provided with a cooling.
- a number of protective elements can be provided between two rolling stands, wherein the protective elements which follow one another between two rolling stands in the conveying direction are arranged offset from each other in the width direction of the rolling stock.
- the protective elements can run straight and / or include an angle to the conveying direction, preferably one between 0 ° and 45 °.
- the at least one thermal insulation element can be arranged to be pivotable and / or translationally movable.
- the area between two rolling stands is preferably free of a roller table. With larger stand spacing, sections outside the framework areas can be provided with a roller table. However, it is preferably provided that the area between two rolling stands is provided with a transfer table, a guide table and / or a looper. In the region of the at least one heat-insulating element, an air blow-off and / or a transverse water spray can be arranged.
- the at least one thermal insulation element preferably comprises a ceramic material or it consists of such.
- the at least one thermal insulation element may further be provided with an apron to protect it from water.
- the thermal insulation element is preferably an absorption insulation element or a reflection insulation element.
- the scaffold installations are equipped in such a way that thermal insulation hoods can be integrated therein.
- the thermal insulation is arranged between at least two finished scaffolds whose framework spacing is less than 25 m, preferably less than 7 m.
- the thermal insulation is mounted or integrated in the scaffold installations, such as, for example, transfer table, Loopertisch and inlet and outlet guide, holders of scrapers or Wasserabweiser, frame on the top and / or bottom of the band and / or laterally of the band.
- ribs or strips can be fixed at certain intervals across the width of the scaffold installations or arranged between the scaffolding installations and placed below or between the ribs or strips the thermal insulation hoods become.
- the ribs can be connected together as a stiffener.
- the ribs or strips should also favor the guidance or transport of the band from frame to frame.
- the ribs or strips are made of a temperature-resistant material or are cooled from the inside; they can be tempered colder or otherwise than the heat-insulating elements arranged therebetween.
- the ribs or strips can be arranged together with the thermal insulation panels so that the thermal insulation effect over the width is as uniform as possible.
- the ribs or slats can be inclined relative to the rolling direction (as seen in plan view) - d. H. at an angle - to ensure said uniformity across the width.
- the thermal insulation panels can, if necessary, for. B. to ensure the observation of the tape head during transport between the scaffolding or a Schrottterrorism be swung away. Also, the insulated inlet and outlet guides for roll change out of the frame area (roller area) can be moved out.
- the thermal insulation between the finishing stands is advantageously used for a rolling plant which, in addition to the batch operation, is preferably also used for endless rolling (in which, for example, the casting plant and the rolling plant are connected).
- the thermal insulation effect has a particularly positive effect on increasing the final rolling temperature and / or reducing the energy consumption due to the lower heating demand before and within the finishing train.
- the effect is particularly important and advantageous at a product mass flow (expressed as a product of roll thickness and velocity) of less than 650 mm xm / min and is particularly advantageous at a mass flow of less than 500 mm xm / min.
- the heat-insulating hood which preferably comprises a ceramic insulation, can thus be clad with a protective sheet or / and fixed on the back of a frame (eg upper scraper holder) in such a way that applied water, e.g. B. the interstitial cooling or roll cooling or other water - is kept away from it.
- a frame e.g upper scraper holder
- the thermal insulation boards are modular exchangeable for themselves or together with the scaffolding installations.
- the insulated area between the finishing stands is thereby preferably maximized so that more than 25% of the stand spacing is insulated between the stands.
- the interstage cooling is integrated into the drive shaft of the looper.
- the side guides can be adjusted by moving elements, which are guided by holes in or through the stand or are arranged below the guides between the stand. These measures increase the scaffolding areas equipped with insulation.
- the effect of the insulating covers inside the finishing train is optimized.
- temperature uncritical tapes can serve as feed belts. Subsequently, thinner tapes are rolled or / and tapes which require higher final rolling temperatures and which make optimum use of the warm insulating hoods.
- the effect of the heat-insulating hoods within the finishing train is thereby preferably taken into account by a process model for setting the road (take-off distribution, engine load, rolling force, speed, temperature, etc.). For this purpose, in particular the dynamic change of the temperature state of the heat-insulating cover surfaces during the rolling and, if necessary, break-time as well as the ratio of the area of the ribs or strips to the heat-insulating surface are included.
- the thermal insulation may be an absorption insulation in which the insulating surface heats up to high temperatures. But it is also a reflection insulation possible, in which the radiated heat is reflected. It has proved to be very advantageous that in the embodiment according to the invention within a multi-stand hot strip mill, a positive influence on the rolling force level due to the reduction of temperature losses can be achieved. Likewise, heat losses are reduced and the belt temperature budget is favorably influenced.
- the rolling stands differ structurally from each other or are arranged locally offset and are therefore linguistically divided into pre-and finishing mill.
- finishing line is coined in the text and in the claims. However, if a roughing train has the characteristic of the specified finishing train consisting of scaffolds with a correspondingly short distance to the neighboring scaffolds, then the scope of protection also applies to the so-called roughing train or other scaffolding.
- Fig. 1 shows schematically the side view of a part of a finishing train of a
- Fig. 2 shows schematically the associated plan view.
- a part of a finishing train 1 is outlined, from the present three rolling stands 2, 3 and 4 can be seen.
- Each rolling mill 2, 3, 4 has a pair of work rolls 9 and these supporting backup rolls.
- the rolling stands 2, 3, 4 follow each other in Fordernchtung F and roll an unrepresented band.
- the rolling stands 2, 3, 4 are at a distance a (see Fig. 1).
- thermal insulation elements 5 are arranged between two each in the conveying direction F successive rolling stands 2 and 3 or 3 and 4, thermal insulation elements 5 are arranged. With these, the tape is shielded against heat loss.
- the thermal insulation elements 5 can be provided with an apron (cover plate) 7, to protect them from water.
- the mudguard 7 serves as a water deflector.
- heat-insulating elements 5 are provided with protective elements 6 in the form of ribs in order to stabilize them on the one hand and to protect them against collisions with the strip to be rolled on the other hand.
- ribs 6 are arranged symmetrically to the center of the band. At the same time an offset in the width direction is provided, as far as the sequence of the individual thermal insulation elements 5 in the conveying direction F is concerned. This allows a uniform thermal history.
- cross braces 8 are further provided over which the ribs 6 are connected. This results in a stable structure.
- the ribs 6 can thereby run at an angle ⁇ to the conveying direction F, as can be seen from FIG.
- Heat-insulating elements 5 can be arranged pivotably to move them from their working position when needed can.
- the heat-insulating elements 5 can be arranged in the region of outlet guides 10 or inlet guides 11, in order to also thermally isolate this section efficiently.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2015151575A RU2633422C2 (ru) | 2013-05-03 | 2014-05-02 | Стан горячей прокатки |
CN201480034935.XA CN105324189B (zh) | 2013-05-03 | 2014-05-02 | 热轧机 |
US14/888,522 US9694405B2 (en) | 2013-05-03 | 2014-05-02 | Hot-rolling mill |
EP14720974.6A EP2991779B2 (de) | 2013-05-03 | 2014-05-02 | Warmwalzwerk |
KR1020157033711A KR101753623B1 (ko) | 2013-05-03 | 2014-05-02 | 열간 압연기 |
JP2016511085A JP6088115B2 (ja) | 2013-05-03 | 2014-05-02 | 熱間圧延機 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013208092.1 | 2013-05-03 | ||
DE102013208092 | 2013-05-03 | ||
DE102013219507.9 | 2013-09-27 | ||
DE102013219507.9A DE102013219507A1 (de) | 2013-05-03 | 2013-09-27 | Warmwalzwerk |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014177679A1 true WO2014177679A1 (de) | 2014-11-06 |
Family
ID=51727468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/058963 WO2014177679A1 (de) | 2013-05-03 | 2014-05-02 | Warmwalzwerk |
Country Status (8)
Country | Link |
---|---|
US (1) | US9694405B2 (de) |
EP (1) | EP2991779B2 (de) |
JP (1) | JP6088115B2 (de) |
KR (1) | KR101753623B1 (de) |
CN (1) | CN105324189B (de) |
DE (1) | DE102013219507A1 (de) |
RU (1) | RU2633422C2 (de) |
WO (1) | WO2014177679A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015212976A1 (de) | 2015-07-10 | 2017-01-12 | Sms Group Gmbh | Wärmedämmvorrichtung |
KR102065219B1 (ko) | 2017-12-22 | 2020-01-10 | 주식회사 포스코 | 압연장치 및 압연방법 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0005340B1 (de) | 1978-04-27 | 1983-01-26 | Encomech Engineering Services Limited | Hitzeschild-Anordnung für Band- und Stangenmaterial |
EP0059093B1 (de) | 1981-02-23 | 1984-05-16 | Encomech Product Development Limited | Hitzeschilde |
JPS6171121A (ja) * | 1984-09-13 | 1986-04-12 | Nippon Steel Corp | 搬送長尺被熱物温度の均一化方法 |
US4595358A (en) | 1985-04-26 | 1986-06-17 | Wean United, Inc. | Re-radiating heat shield |
US5711175A (en) | 1994-04-12 | 1998-01-27 | Encomech Engineering Services Ltd. | Heat shields for roller tables |
WO2012080368A1 (de) * | 2010-12-16 | 2012-06-21 | Sms Siemag Ag | WALZSTRAßE ZUR RÖHRENSTAHL- UND DÜNNBANDERZEUGUNG |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1040420A (en) * | 1963-11-19 | 1966-08-24 | United Eng Foundry Co | Method and apparatus for controlling the temperature of hot strip |
US3606778A (en) * | 1968-06-17 | 1971-09-21 | Reactive Metals Inc | Method and apparatus for warm-rolling metal strip |
US4452587A (en) * | 1977-05-04 | 1984-06-05 | Laws William R | Heat shield; and insulation panels therefor |
US4343168A (en) | 1977-05-04 | 1982-08-10 | Laws William R | Heat shield arrangements for a rolling mill |
SU732397A1 (ru) * | 1977-05-16 | 1980-05-05 | Предприятие П/Я В-8173 | Механизм дл транспортировки длинномерных изделий |
US4382586A (en) * | 1978-05-15 | 1983-05-10 | Reese Thurston F | Metal cooling bed for controlling rate of cooling |
US4434168A (en) | 1979-01-16 | 1984-02-28 | The United States Of America As Represented By The Secretary Of The Army | Narcotic antagonists in the therapy of shock |
JPS56119615A (en) | 1980-02-27 | 1981-09-19 | Kawasaki Steel Corp | Hot rolling method |
NL8200265A (nl) * | 1982-01-26 | 1983-08-16 | Estel Hoogovens Bv | Werkwijze voor het warmwalsen van staal en reflectiescherm te gebruiken daarbij. |
GB8422216D0 (en) * | 1984-09-03 | 1984-10-10 | Davy Mckee Sheffield | Temperature control of hot strip mill |
GB2163985B (en) | 1984-09-03 | 1987-09-03 | Davy Mckee | Temperature control of hot strip mill |
SU1217515A1 (ru) * | 1984-09-29 | 1986-03-15 | Донецкий научно-исследовательский институт черной металлургии | Способ гор чей прокатки металлов с узким температурным интервалом пластичности и устройство дл регулировани тепловых потерь металла при гор чей прокатке |
GB2203372A (en) * | 1987-04-15 | 1988-10-19 | British Steel Corp | Heat conservation of hot metal slabs |
FR2630533B1 (fr) | 1988-04-25 | 1992-05-22 | Clecim Sa | Enceinte thermique |
JPH0275411A (ja) | 1988-09-07 | 1990-03-15 | Sumitomo Metal Ind Ltd | 高温鋼材用保温カバーの開閉制御方法 |
US5101652A (en) * | 1990-07-26 | 1992-04-07 | Allegheny Ludlum Corporation | Insulating heat retention system and method |
JPH06315708A (ja) * | 1993-05-10 | 1994-11-15 | Nippon Steel Corp | 熱間圧延における鋼材の搬送装置 |
JP2002066605A (ja) * | 2000-08-30 | 2002-03-05 | Hitachi Ltd | 熱間圧延方法および設備 |
JP4173648B2 (ja) * | 2001-03-30 | 2008-10-29 | Jfeスチール株式会社 | 誘導加熱装置におけるスケールの除去方法および誘導加熱装置 |
DE102004060086A1 (de) * | 2004-12-14 | 2006-06-22 | Sms Demag Ag | Verfahren und Vorrichtung zum Bandabblasen im Auslauf von Walzwerken zur Erzeugung von tropfenfreiem und sauberem Walzband |
US7181822B2 (en) * | 2005-01-20 | 2007-02-27 | Nucor Corporation | Method and apparatus for controlling strip shape in hot rolling mills |
CN101310029B (zh) * | 2005-10-31 | 2010-12-29 | Sms西马格股份公司 | 用于热轧输入材料的方法和精轧机 |
DE102006054932A1 (de) * | 2005-12-16 | 2007-09-13 | Sms Demag Ag | Verfahren und Vorrichtung zum Herstellen eines Metallbandes durch Gießwalzen |
DE102009032723A1 (de) * | 2009-07-11 | 2011-01-13 | Gottfried Von Czarnowski | Verfahren und Vorrichtung zur Energierückgewinnung in Walzwerken |
CN201644499U (zh) | 2010-01-22 | 2010-11-24 | 宝山钢铁股份有限公司 | 热连轧机轧辊入口挡水装置 |
-
2013
- 2013-09-27 DE DE102013219507.9A patent/DE102013219507A1/de active Pending
-
2014
- 2014-05-02 EP EP14720974.6A patent/EP2991779B2/de active Active
- 2014-05-02 RU RU2015151575A patent/RU2633422C2/ru active
- 2014-05-02 KR KR1020157033711A patent/KR101753623B1/ko active IP Right Grant
- 2014-05-02 US US14/888,522 patent/US9694405B2/en active Active
- 2014-05-02 CN CN201480034935.XA patent/CN105324189B/zh not_active Expired - Fee Related
- 2014-05-02 JP JP2016511085A patent/JP6088115B2/ja not_active Expired - Fee Related
- 2014-05-02 WO PCT/EP2014/058963 patent/WO2014177679A1/de active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0005340B1 (de) | 1978-04-27 | 1983-01-26 | Encomech Engineering Services Limited | Hitzeschild-Anordnung für Band- und Stangenmaterial |
EP0059093B1 (de) | 1981-02-23 | 1984-05-16 | Encomech Product Development Limited | Hitzeschilde |
JPS6171121A (ja) * | 1984-09-13 | 1986-04-12 | Nippon Steel Corp | 搬送長尺被熱物温度の均一化方法 |
US4595358A (en) | 1985-04-26 | 1986-06-17 | Wean United, Inc. | Re-radiating heat shield |
US5711175A (en) | 1994-04-12 | 1998-01-27 | Encomech Engineering Services Ltd. | Heat shields for roller tables |
WO2012080368A1 (de) * | 2010-12-16 | 2012-06-21 | Sms Siemag Ag | WALZSTRAßE ZUR RÖHRENSTAHL- UND DÜNNBANDERZEUGUNG |
Also Published As
Publication number | Publication date |
---|---|
EP2991779B1 (de) | 2016-12-14 |
EP2991779B2 (de) | 2023-01-11 |
US9694405B2 (en) | 2017-07-04 |
EP2991779A1 (de) | 2016-03-09 |
JP2016520432A (ja) | 2016-07-14 |
CN105324189A (zh) | 2016-02-10 |
JP6088115B2 (ja) | 2017-03-01 |
US20160082490A1 (en) | 2016-03-24 |
KR20160003790A (ko) | 2016-01-11 |
RU2633422C2 (ru) | 2017-10-12 |
DE102013219507A1 (de) | 2014-11-06 |
KR101753623B1 (ko) | 2017-07-19 |
CN105324189B (zh) | 2017-10-13 |
RU2015151575A (ru) | 2017-06-08 |
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