EP1954418A1 - Verfahren und vorrichtung zur reinigung bzw. entzunderung von dünnbrammen und bändern in warmbandstrassen, bandbehandlungsanlagen oder dergleichen - Google Patents
Verfahren und vorrichtung zur reinigung bzw. entzunderung von dünnbrammen und bändern in warmbandstrassen, bandbehandlungsanlagen oder dergleichenInfo
- Publication number
- EP1954418A1 EP1954418A1 EP06818606A EP06818606A EP1954418A1 EP 1954418 A1 EP1954418 A1 EP 1954418A1 EP 06818606 A EP06818606 A EP 06818606A EP 06818606 A EP06818606 A EP 06818606A EP 1954418 A1 EP1954418 A1 EP 1954418A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- necessary
- carrier medium
- cryogen
- sprayed
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0021—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by liquid gases or supercritical fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
-
- 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
- B21B45/02—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 for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
-
- 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
- B21B45/02—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 for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
-
- 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
- B21B45/04—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 for de-scaling, e.g. by brushing
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
-
- 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
- B21B45/02—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 for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0272—Cleaning compositions
-
- 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
- B21B45/02—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 for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
- B21B45/0287—Cleaning devices removing solid particles, e.g. dust, rust
-
- 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
- B21B45/04—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 for de-scaling, e.g. by brushing
- B21B45/08—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 for de-scaling, e.g. by brushing hydraulically
Definitions
- the invention relates to a method for cleaning or descaling of thin slabs and strips in hot strip mills, strip processing plants or the like and to an apparatus for carrying out the method.
- the slab or strip In the hot rolling process in hot strip mills, the slab or strip is subject to continuous distortion during transport through the kiln and rolling train. This scale is usually removed with the help of scale scrubbers before a rolling is performed. In this case, water is injected at high pressure (about 200 ... 380 bar) onto the warm surface. As a result of the application of water it comes in addition to the desired cleaning process to a not insignificant cooling of the tape. For rolling mills where the caster is directly connected to the mill, d. H. With
- the scale In the case of strip processing plants, the scale is usually removed with the aid of pickling lines before a rolling is carried out. In this case, the band is pulled through a warm acid bath (hydrochloric acid, sulfuric acid, mixed acids, etc.). Due to the chemical reactions, the desired cleaning process occurs. However, this process is expensive and not necessarily environmentally friendly because of the acid bath used.
- a warm acid bath hydrochloric acid, sulfuric acid, mixed acids, etc.
- Kyro nen for the cleaning or Entzu matterssvon slabs or bands.
- These are liquid gases, e.g. liquid nitrogen or carbon dioxide.
- the gases can be used in their pure form or using compressed air or another suitable carrier medium.
- the liquid gas is injected analogously to the water of the scale scrubber on the slab or strip surface or on the strip to be descaled.
- it is a liquid gas, it volatilizes after impact on the surface and thus causes only a minimal temperature reduction.
- the non-toxic gas with the dust or scale particles is then optionally sucked off.
- the cleaning effect or descaling effect is based on three effects:
- the region of the strip is surrounded by inert gas (the gas spreads) in addition to the point of application. There, in addition, the renewed scaling is suppressed.
- FIGS. 1 to 6 show possible installation locations for the descaling device with liquid gas in a hot strip mill:
- Figure 1 illustrates the arrangement behind a casting plant in front of a rolling train or an oven.
- the transport speed is particularly low.
- Conventional descaling is difficult to realize here.
- FIG. 2 shows possible installation locations in front of a finishing train.
- FIG. 3 shows applications between two stands of a finishing train. By removing the thin scale layer, the rolling of the newly formed secondary scale is suppressed. In order to reduce the scale thickness on the finished strip (coil), with the aim of increasing the pickling rate, liquified gas descaling is provided shortly before the driver / reel, as shown in FIG.
- FIG. 5 shows that the liquefied gas purification can be carried out as a single device with one or more spray bars or can be operated in combination with a conventional descaling or low-pressure belt cleaning.
- Figure 6 represents how an extraction of the gas or the scale particles can be carried out. Furthermore, one can see in Figure 6, the executed shielding of the distribution line in front of the warm band. Furthermore, it should be noted that the nozzle is positioned as close as possible to the band, so that the full effect occurs and the liquid occurs before evaporation onto the surface. Possible installation locations for the descaling device with liquid gas in a conveyor system are:
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005057679 | 2005-12-01 | ||
| DE102006019544A DE102006019544A1 (de) | 2005-12-01 | 2006-04-27 | Verfahren und Vorrichtung zur Entzunderung von Dünnbrammen und Bändern in Warmbandstraßen, Bandbehandlungsanlagen oder dergleichen |
| PCT/EP2006/011021 WO2007062749A1 (de) | 2005-12-01 | 2006-11-17 | Verfahren und vorrichtung zur reinigung bzw. entzunderung von dünnbrammen und bändern in warmbandstrassen, bandbehandlungsanlagen oder dergleichen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1954418A1 true EP1954418A1 (de) | 2008-08-13 |
| EP1954418B1 EP1954418B1 (de) | 2011-01-12 |
Family
ID=37546797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06818606A Not-in-force EP1954418B1 (de) | 2005-12-01 | 2006-11-17 | Verfahren und vorrichtung zur reinigung bzw. entzunderung von dünnbrammen und bändern in warmbandstrassen, bandbehandlungsanlagen oder dergleichen |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20090014037A1 (de) |
| EP (1) | EP1954418B1 (de) |
| JP (1) | JP2009511277A (de) |
| CN (1) | CN101253012B (de) |
| AT (1) | ATE494969T1 (de) |
| BR (1) | BRPI0619123A2 (de) |
| CA (1) | CA2626426A1 (de) |
| DE (2) | DE102006019544A1 (de) |
| RU (1) | RU2388559C2 (de) |
| WO (1) | WO2007062749A1 (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100132747A1 (en) * | 2008-12-01 | 2010-06-03 | Ken Smith | Thermal De-Scaling Surfaces With Cryogenic Liquids And Gases |
| DE102009035161A1 (de) | 2009-07-29 | 2011-02-10 | Sms Siemag Ag | Verfahren und Vorrichtung zur Entzunderung oder Reinigung von metallischen Oberflächen, unter anderem Bänder (oder Brammen) im Durchlauf |
| EP2489446A1 (de) | 2011-02-17 | 2012-08-22 | Linde Aktiengesellschaft | Düsenkopf |
| CN103433310B (zh) * | 2013-09-18 | 2015-07-15 | 河南理工大学 | 一种热轧金属的除鳞方法 |
| CN103481201A (zh) * | 2013-10-16 | 2014-01-01 | 山西太钢不锈钢股份有限公司 | 金属板带表面连续除鳞的装置与方法 |
| DE102014101159B4 (de) | 2014-01-30 | 2016-12-01 | Thyssenkrupp Steel Europe Ag | Verfahren zur Oberflächenbehandlung von Werkstücken |
| DE102014214027A1 (de) * | 2014-07-18 | 2016-02-18 | Bayerische Motoren Werke Aktiengesellschaft | Formwerkzeug zur Herstellung von warmumgeformten Bauteilen |
| CN107188291B (zh) * | 2017-06-05 | 2020-08-04 | 华中师范大学 | 一种液氮低温处理商业铁粉增强其还原去除污染物能力的方法 |
| IT201700118889A1 (it) * | 2017-10-20 | 2019-04-20 | Luca Patauner | Utilizzo dell'ossigeno liquido per la preparazione di superfici ad uso dei trattamenti di finitura superficiale |
| GB201808639D0 (en) | 2018-05-25 | 2018-07-11 | Additive Manufacturing Tech Ltd | Additive manufacturing |
| DE102020201560A1 (de) | 2020-02-07 | 2021-08-12 | Thyssenkrupp Steel Europe Ag | Verfahren zur Unterdrückung von Zunderbildung auf der Oberfläche eines metallischen Walzgutes |
| KR102866731B1 (ko) * | 2022-12-09 | 2025-09-29 | 김두원 | 스케일 제거장치와 스케일 제거방법 |
| CN116833252B (zh) * | 2023-09-01 | 2023-11-17 | 太原科技大学 | 一种适用于金属极薄带材生产的除渣润滑一体机 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4491484A (en) * | 1981-11-24 | 1985-01-01 | Mobile Companies, Inc. | Cryogenic cleaning process |
| US4806171A (en) * | 1987-04-22 | 1989-02-21 | The Boc Group, Inc. | Apparatus and method for removing minute particles from a substrate |
| US5395454A (en) * | 1993-12-09 | 1995-03-07 | Liquid Air Corporation | Method of cleaning elongated objects |
| EP0719602B1 (de) * | 1994-07-18 | 2001-11-21 | Kawasaki Steel Corporation | Verfahren und vorrichtung zum reinigen von stahlblech |
| US5579209A (en) * | 1994-10-19 | 1996-11-26 | Whirlpool Corporation | Remote control housing with functional attributes for a room air conditioner |
| US5616067A (en) * | 1996-01-16 | 1997-04-01 | Ford Motor Company | CO2 nozzle and method for cleaning pressure-sensitive surfaces |
| CN1087665C (zh) * | 1996-03-04 | 2002-07-17 | 三菱重工业株式会社 | 热轧设备 |
| CN2267106Y (zh) * | 1996-04-23 | 1997-11-12 | 鞍山钢铁集团公司 | 引射抽吸冷轧带钢表面乳化液装置 |
| AUPQ385099A0 (en) * | 1999-11-03 | 1999-11-25 | Bhp Steel (Jla) Pty Limited | Production of thin steel strip |
| DE19953230C2 (de) * | 1999-11-04 | 2003-08-28 | C D Waelzholz Produktionsgmbh | Kaltwalzverfahren |
| US6675622B2 (en) * | 2001-05-01 | 2004-01-13 | Air Products And Chemicals, Inc. | Process and roll stand for cold rolling of a metal strip |
| DE10160902A1 (de) * | 2001-12-12 | 2003-07-03 | Messer Griesheim Gmbh | Reinigen von Objekten mit Flüssiggas |
| DE10332693A1 (de) * | 2003-07-18 | 2005-02-10 | Sms Demag Ag | Verfahren und Vorrichtung zum Entzundern und/oder reinigen eines Metallstranges |
| CN2644038Y (zh) * | 2003-08-27 | 2004-09-29 | 攀枝花新钢钒股份有限公司热轧板厂 | 高压水除鳞挡水装置 |
| DE102004040375A1 (de) * | 2004-06-09 | 2005-12-29 | Sms Demag Ag | Verfahren und Walzgerüst zum Kaltwalzen von metallischem Walzgut, insbesondere von Walzband, mit Düsen für gasförmige oder flüssige Behandlungsmedien |
-
2006
- 2006-04-27 DE DE102006019544A patent/DE102006019544A1/de not_active Withdrawn
- 2006-11-17 WO PCT/EP2006/011021 patent/WO2007062749A1/de not_active Ceased
- 2006-11-17 US US12/085,820 patent/US20090014037A1/en not_active Abandoned
- 2006-11-17 CN CN200680032079XA patent/CN101253012B/zh not_active Expired - Fee Related
- 2006-11-17 BR BRPI0619123-1A patent/BRPI0619123A2/pt not_active IP Right Cessation
- 2006-11-17 RU RU2008111501/02A patent/RU2388559C2/ru not_active IP Right Cessation
- 2006-11-17 CA CA002626426A patent/CA2626426A1/en not_active Abandoned
- 2006-11-17 JP JP2008535991A patent/JP2009511277A/ja active Pending
- 2006-11-17 AT AT06818606T patent/ATE494969T1/de active
- 2006-11-17 EP EP06818606A patent/EP1954418B1/de not_active Not-in-force
- 2006-11-17 DE DE502006008740T patent/DE502006008740D1/de active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007062749A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE494969T1 (de) | 2011-01-15 |
| RU2008111501A (ru) | 2009-10-10 |
| CN101253012B (zh) | 2010-12-29 |
| DE102006019544A1 (de) | 2007-06-06 |
| BRPI0619123A2 (pt) | 2011-09-13 |
| DE502006008740D1 (de) | 2011-02-24 |
| CA2626426A1 (en) | 2007-06-07 |
| JP2009511277A (ja) | 2009-03-19 |
| US20090014037A1 (en) | 2009-01-15 |
| RU2388559C2 (ru) | 2010-05-10 |
| EP1954418B1 (de) | 2011-01-12 |
| CN101253012A (zh) | 2008-08-27 |
| WO2007062749A1 (de) | 2007-06-07 |
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