EP3509768A1 - Vorrichtung und verfahren zum aufbringen eines flüssigen mediums auf eine walze und/oder auf ein walzgut und/oder zum entfernen des flüssigen mediums - Google Patents
Vorrichtung und verfahren zum aufbringen eines flüssigen mediums auf eine walze und/oder auf ein walzgut und/oder zum entfernen des flüssigen mediumsInfo
- Publication number
- EP3509768A1 EP3509768A1 EP17758486.9A EP17758486A EP3509768A1 EP 3509768 A1 EP3509768 A1 EP 3509768A1 EP 17758486 A EP17758486 A EP 17758486A EP 3509768 A1 EP3509768 A1 EP 3509768A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- medium
- plate element
- liquid medium
- water
- plate
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
-
- 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
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
-
- 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
- B21B45/0278—Cleaning devices removing liquids
- B21B45/0281—Cleaning devices removing liquids removing coolants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
- B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally
-
- 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 device for applying a liquid medium to a roller, in particular to a work roll of a rolling stand, and / or to a rolling stock, a slab or a sliver and / or for removing the liquid medium, wherein the device comprises at least one spray nozzle,
- the invention relates to a method for applying a liquid medium and / or for removing the liquid medium.
- Water, emulsion, dispersion, oil, kerosene or other media can be used as cooling medium. In simplified terms, this is usually referred to in this case of water.
- a kind of drainage is arranged in JP 61 17641 1 A, so that the water can drain into the area behind the spray pipes.
- JP 06339712 A for the upper roller cooling a 90 ° transverse drain channel above the scraper is provided, run into the water and can run off to the side. This should be the upper
- the invention is therefore based on the invention to achieve an improvement in the cooling effect, in particular the upper work roll cooling and preferably in wide hot strip mills with a high specific amount of water. Furthermore, an improved removal of descaling water is to be made possible by descaling a slab or a strip. Thus, improved drain conditions for the cooling medium of the upper work roll cooling to be made possible, which by avoiding the so-called. Pool effect, d. H. the damming of the cooling medium above the stripper plate and / or
- the plate element has on one of its surfaces at least one guide element, which is designed for deflecting medium in a transverse direction, which is horizontal and transverse to the conveying direction.
- the at least one spray nozzle preferably applies the medium to the roller with a predetermined center direction, wherein the tangent pointing in the circumferential direction of the roller at the location of impact of the center direction on the roller has an angle to the center direction which is greater than 90 °.
- a plurality of vertically superposed spray nozzles and / or cooling bars are arranged, wherein the plate element between two or below these spray nozzles and / or cooling bars is arranged
- a plurality of guide elements are arranged on the plate element, wherein in particular decreases their angle with increasing distance from the roller, the cooling beam or a Entzu concerningsbalken.
- the at least one guide element can also be formed bent.
- the at least one guide element is vertical or inclined or wound about its longitudinal axis in the direction of the
- Plate element is arranged.
- Plate element are arranged, wherein these are arranged symmetrically or asymmetrically on a vertically extending center plane on the plate member.
- Plate element are arranged, these being in their vertical height
- means for Querabspritzung can be arranged on the plate member.
- the plate element is preferably at an angle to the horizontal
- the invention relates to a method for applying a liquid medium to a roll, in particular to a work roll of a roll stand, and / or to a rolling stock, for example a slab or a slab, and / or to
- a device is formed with at least one spray nozzle, at least one spray nozzle row or at least one cooling bar for spraying the medium and at least one plate element, which is designed to collect the medium.
- the invention provides that the plate element is provided on one of its surfaces with at least one guide element, which is designed for the deflection of medium in a transverse direction, which is horizontal and transverse to the conveying direction, wherein the flow movement (ie, the flow rate) of the applied liquid medium is used to deflect the liquid medium by means of the at least one guide element in the transverse direction.
- the invention is preferred in a heavy plate stand, in a
- FIG. 1 shows schematically the side view of a device for applying water to the work roll of a rolling mill and the removal of the water according to a first embodiment of the invention
- FIG. 2 shows schematically the plan view of the device corresponding to FIG.
- FIG. 3 shows schematically the top view according to FIG. 2 according to a second embodiment of the invention
- FIG. 4 shows schematically the plan view according to FIG. 2 according to a third embodiment of the invention
- FIG. 5 shows schematically the plan view according to FIG. 2 according to a fourth embodiment of the invention
- Fig. 6 shows schematically the side view of a device for applying
- FIG. 7 schematically shows the plan view of the device corresponding to FIG. 6,
- FIG. 7 shows water on the work roll of a rolling mill and for removing the water according to a fifth embodiment of the invention
- Fig. 8 shows schematically the side view of a device for applying water to a slab for descaling the same and for removing the water and
- Fig. 9 shows schematically the figure 8 associated plan view of the device.
- FIG 1 and Figure 2 the side view and plan view of a device 1 for applying water W on the work roll 2 of a rolling mill and for removing the water W is outlined.
- the work roll 2 is supported by a back-up roll 10.
- the work roll 2 rolls a rolling stock 3, which in a Conveying direction F is moved.
- the conveying direction F corresponds to the direction of the horizontal H.
- the device 1 comprises a plurality of spray nozzles 4, which are arranged in a water cooling bar 1 1. With the spray nozzles 4 water W is sprayed onto the surface of the work roll 2. For discharging the sprayed water and in order to avoid that water flows freely on the belt, a plate member 5 (stripper plate) is provided, which is inclined at an angle ⁇ to the horizontal H. On the upper surface 6 of the plate member 5 guide elements 7 and 8 are arranged (in particular welded), which allow the water W in a transverse direction Q, which is horizontal and perpendicular to the conveying direction F, is derived from the plate member 5 to the side.
- a transverse direction Q which is horizontal and perpendicular to the conveying direction F
- the guide elements 7 and 8 are offset in the conveying direction F in the described embodiment, however, arranged symmetrically to a vertically extending center plane ME.
- the guide elements 7, 8 are straight and formed at an angle ß to the transverse direction Q
- Spray nozzles 4 sprayed in a center direction M on the surface of the work roll 2.
- the tangent T which points in the circumferential direction of the work roll 2 and results on the surface of the work roll 2 at the point where the
- Center direction M impinges on the work roll 2, lies to the center direction M at an angle a, which is preferably greater than 90 °.
- the guide elements 7, 8 may have a different height h.
- the guide element 7, 8 may consist of at least one long sheet, which is fastened on its narrow side on the plate element 5.
- FIG. 1 shows an upper outlet-side work roll cooling to this extent. From the roll cooling bar 1 1 and ultimately from the nozzles 4 water W emerges mainly from several spray rows and injected onto the roller 2. At least one spray row is arranged so that the water flow in the direction of
- Plate element 5 stripper plate is inclined. That is, the angle of attack ⁇ between the center of the water jet M and the tangent T to
- Roll surface is greater than 90 °, as can be seen in Figure 1 for the lower two spray rows.
- Deflection plates (guide elements 7, 8) on the plate element 5 (stripper plate), which are arranged at the angle ⁇ of greater than 5 °, s.
- Figure 2 where the water flow deflection principle is shown.
- the plate element 5 is closed in the conveying direction F - as shown in FIG. 1 - by a rear wall 12.
- the water flows only to the rear against a back wall, jams there, whereby by the dammed water level lateral water drainage takes place.
- the water flow is back through a
- the water W runs along the employed guide elements 7, 8 (baffle plates) and is for the most part deflected to the side, that is to say in the transverse direction Q.
- baffles 7, 8 are arranged in each case staggered one behind the other, which divert the water W essentially symmetrically to the sides.
- at least one guide element (deflection plate) is generally required.
- the water can then run downwards (eg into a sintering channel).
- the distance d between the plate element 5 (stripper plate) and the laterally limiting environment, such as roll stand 14, chocks, bending blocks or inlet or outlet guide frame, should be as large as possible (preferably greater than 50 mm). Obstruction by limiting lateral surfaces can be avoided by providing drainage holes, preferably in the area of the water flows.
- Drip edge or tear-off edge (similar to a window sill) or a groove in the bottom at the edge of the plate member 5 is provided so that water does not run inward on the edge of a wide band or on the plate.
- a Querabspritzung 13 is provided which presses the roller cooling water to the outside, as indicated in Figure 2.
- the funds are 9
- the plate member 5 or portions thereof may be formed on the upper side with an inclination to the side to further improve drainage of the water.
- the guide elements 7, 8 can be of different heights (see height h, which is preferably greater than 20 mm).
- the guide elements 7, 8 can be of different heights (see height h, which is preferably greater than 20 mm).
- Figure 2 shows - staggered one behind the other or even next to each other.
- the last-mentioned solution is shown in FIG. 3.
- the guide elements 7, 8 can therefore be oriented perpendicularly in the direction of the plate element 5 (stripper plate) or slightly inclined or twisted around the longitudinal axis. While typically a symmetrical deflection of the water jet in the transverse direction Q on both sides of the plate element 5 is advantageous, can also another embodiment may be provided. In certain cases, it may be advantageous if the guide elements 7, 8 only in one direction
- Cooling medium is concentrated on a drain side.
- Scraper or acts as a water-tape separator plate as was the case in the embodiments described so far. It is also possible to provide guide elements 7, 8 without plate elements or on plate elements 5, which are mounted between and / or above and / or under the cooling bars 11, in order to redirect the flow of water back to the side in good time. Such a solution is shown by the embodiment according to FIGS. 6 and 7. According to FIG. 6, four superposed water cooling bars 11 are provided which carry respective rows of spray nozzles 4, 4 ', 4 ", 4"'.
- plate elements 5 arranged horizontally can also be located above the stripper or the water-band separating plate (that is, at the bottom in FIG.
- Plate element 5, which ends near the work roll 2) may be arranged, on which the guide elements 7, 8 (baffles) are fixed.
- An example of this is sketched in FIG. 6 below the lowermost roll cooling bar 11.
- the water then sprays at a small angle to the side, as can be seen in Figure 7 in plan view.
- the guide elements 7, 8 can be designed as baffles, but they can also be designed differently (eg plates, which consist of a wide variety of different types of plates) Materials can exist), provided they perform the desired task, namely cause the deflection of the water jet, so meet thedemedium- deflection principle.
- the typical amount of water used in the proposed design is preferably a specific amount of water of more than 40 m 3 per hour and per meter width for the upper roll cooling.
- Work roll cooling should be less than 45 ° to the horizontal, so that the water does not have to run excessively uphill.
- the plate element 5 here designed as a water drainage plate, grinds on the moving slab, plate or sliver 3. It lies with its own weight on the rolling movable pendulum.
- the plate element 5 water drainage plate
- the plate element 5 can also be kept at a defined distance from the slab 3 (without rolling contact).
- Embodiments of the guide elements possible. Most of the water runs off to the side. The residual water is fed to a water collecting channel 16. A slope 17 in the water gutter 16 favors this.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016216865 | 2016-09-06 | ||
| DE102016223131.6A DE102016223131A1 (de) | 2016-09-06 | 2016-11-23 | Vorrichtung und Verfahren zum Aufbringen eines flüssigen Mediums auf eine Walze und/oder auf ein Walzgut und/oder zum Entfernen des flüssigen Mediums |
| PCT/EP2017/071157 WO2018046295A1 (de) | 2016-09-06 | 2017-08-22 | Vorrichtung und verfahren zum aufbringen eines flüssigen mediums auf eine walze und/oder auf ein walzgut und/oder zum entfernen des flüssigen mediums |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3509768A1 true EP3509768A1 (de) | 2019-07-17 |
| EP3509768B1 EP3509768B1 (de) | 2020-04-22 |
Family
ID=61197757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17758486.9A Active EP3509768B1 (de) | 2016-09-06 | 2017-08-22 | Vorrichtung und verfahren zum aufbringen eines flüssigen mediums auf eine walze und/oder auf ein walzgut und/oder zum entfernen des flüssigen mediums |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11014133B2 (de) |
| EP (1) | EP3509768B1 (de) |
| CN (1) | CN109661279B (de) |
| DE (1) | DE102016223131A1 (de) |
| WO (1) | WO2018046295A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1025125B1 (fr) * | 2017-09-04 | 2018-10-31 | Centre de Recherches Métallurgiques asbl-Centrum voor Research in de Metallurgie vzw | Essuyeur sans contact et installation industrielle comportant un tel essuyeur |
| DE102017221764A1 (de) * | 2017-12-04 | 2019-06-06 | Sms Group Gmbh | Vorrichtung und Verfahren zum Kühlen einer Querteilschere in Warmbandstraßen |
| DE102018212168A1 (de) | 2018-07-23 | 2020-01-23 | Sms Group Gmbh | Walzgerüst und Verfahren zum Kühlen der oberen Arbeitswalze eines Walzlgerüstes |
| FI3898020T3 (fi) * | 2018-12-19 | 2024-01-31 | Tata Steel Ijmuiden Bv | Jäähdytyslaite kuumavalssaimeen |
| DE102019200760A1 (de) * | 2019-01-22 | 2020-07-23 | Sms Group Gmbh | Vorrichtung und Verfahren zum Entzundern eines bewegten Werkstücks |
| WO2025037607A1 (ja) * | 2023-08-17 | 2025-02-20 | Jfeスチール株式会社 | 表面欠陥抑制装置、冷間圧延設備、及び冷間圧延方法 |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6015313A (ja) | 1983-07-04 | 1985-01-26 | Yamato Scale Co Ltd | 棒状物品の整列供給装置 |
| NL8403821A (nl) * | 1984-12-17 | 1986-07-16 | Hoogovens Groep Bv | Inrichting voor het koelen van een werkwals in een walstuig voor het walsen van metaalband. |
| JPS61176411A (ja) | 1985-02-01 | 1986-08-08 | Nippon Kokan Kk <Nkk> | 熱間圧延機におけるワ−クロ−ルの冷却装置 |
| JPS61295326A (ja) * | 1985-06-25 | 1986-12-26 | Mitsubishi Heavy Ind Ltd | 帯板冷却装置 |
| US5001915A (en) * | 1986-09-22 | 1991-03-26 | David T. Blazevic | Method for improving hot strip mill processing |
| JPH06339712A (ja) | 1993-05-31 | 1994-12-13 | Mitsubishi Heavy Ind Ltd | 圧延機のロールクーラント排出装置 |
| DE4422422A1 (de) | 1994-01-08 | 1995-07-13 | Schloemann Siemag Ag | Vorrichtung zum berührungsfreien Abdichten eines Spaltes im Auslauf eines Walzgerüstes |
| JPH105827A (ja) * | 1996-06-14 | 1998-01-13 | Hitachi Ltd | 圧延ロールの冷却装置及び圧延機 |
| DE19737735A1 (de) | 1997-08-29 | 1999-03-04 | Schloemann Siemag Ag | Vorrichtung und Verfahren zur auslaufseitigen Kühlung der Arbeitswalzen eines Walzgerüstes |
| US6385989B1 (en) * | 2000-06-15 | 2002-05-14 | Morgan Construction Company | Coolant delivery device |
| KR100961358B1 (ko) | 2003-04-25 | 2010-06-04 | 주식회사 포스코 | 분사 냉각수 차단장치가 구비된 스트리퍼 |
| JP4449991B2 (ja) * | 2007-02-26 | 2010-04-14 | Jfeスチール株式会社 | 熱延鋼帯の冷却装置及び方法 |
| DE102009053073A1 (de) * | 2009-03-03 | 2010-09-09 | Sms Siemag Aktiengesellschaft | Verfahren und Kühlvorrichtung zum Kühlen der Walzen eines Walzgerüstes |
| CN101628299A (zh) * | 2009-05-22 | 2010-01-20 | 中色科技股份有限公司 | 一体式工艺润滑喷嘴梁 |
| JP5558030B2 (ja) | 2009-05-28 | 2014-07-23 | 六菱ゴム株式会社 | 圧延ロールの水切り装置 |
| KR20110098048A (ko) | 2010-02-26 | 2011-09-01 | 현대제철 주식회사 | 압연기용 스트리퍼 |
| CN102834191B (zh) * | 2010-03-31 | 2017-03-29 | 新日铁住金株式会社 | 热轧钢板的制造装置及制造方法 |
| JP5646261B2 (ja) | 2010-09-22 | 2014-12-24 | 三菱日立製鉄機械株式会社 | 熱延鋼帯の冷却装置 |
| CN202052763U (zh) | 2011-03-16 | 2011-11-30 | 武汉钢铁(集团)公司 | 新型粗轧机辊擦拭器 |
| DE102011084735A1 (de) * | 2011-10-18 | 2013-04-18 | Sms Siemag Ag | Abstreifer für eine Arbeitswalze eines Walzgerüsts |
| DE102012202340A1 (de) * | 2011-12-23 | 2013-06-27 | Sms Siemag Ag | Verfahren und Vorrichtung zum Kühlen von Walzen |
| KR101372648B1 (ko) | 2012-07-06 | 2014-03-10 | 주식회사 포스코 | 낙수 방지장치 및 이를 포함하는 절단기 |
-
2016
- 2016-11-23 DE DE102016223131.6A patent/DE102016223131A1/de not_active Withdrawn
-
2017
- 2017-08-22 US US16/329,322 patent/US11014133B2/en not_active Expired - Fee Related
- 2017-08-22 CN CN201780054513.2A patent/CN109661279B/zh not_active Expired - Fee Related
- 2017-08-22 WO PCT/EP2017/071157 patent/WO2018046295A1/de not_active Ceased
- 2017-08-22 EP EP17758486.9A patent/EP3509768B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20190247901A1 (en) | 2019-08-15 |
| US11014133B2 (en) | 2021-05-25 |
| DE102016223131A1 (de) | 2018-03-08 |
| WO2018046295A1 (de) | 2018-03-15 |
| CN109661279B (zh) | 2021-05-07 |
| EP3509768B1 (de) | 2020-04-22 |
| CN109661279A (zh) | 2019-04-19 |
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