EP2978545A1 - Kühlstrecke mit unterem spritzbalken - Google Patents
Kühlstrecke mit unterem spritzbalkenInfo
- Publication number
- EP2978545A1 EP2978545A1 EP14707680.6A EP14707680A EP2978545A1 EP 2978545 A1 EP2978545 A1 EP 2978545A1 EP 14707680 A EP14707680 A EP 14707680A EP 2978545 A1 EP2978545 A1 EP 2978545A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling section
- transport rollers
- section according
- guide sections
- base block
- 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
- 239000007921 spray Substances 0.000 title claims abstract description 89
- 238000001816 cooling Methods 0.000 title claims abstract description 45
- 239000002826 coolant Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims description 23
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 8
- 230000007423 decrease Effects 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010959 steel 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
- B21B45/02—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
-
- 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
- B21B45/0203—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
- B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
- B21B39/12—Arrangement or installation of roller tables in relation to a roll stand
Definitions
- Cooling section with lower spray bar The present invention relates to a cooling section for a flat rolling stock
- cooling section has a frame construction, in which a plurality of transport rollers are arranged behind one another as seen in a transport direction for the flat rolling stock,
- transport rollers are rotatably mounted in the frame structure about a respective roller axis
- roller axes are orthogonal to the transport direction and horizontal, so that the transport rollers form a passline for the flat rolling stock
- Spray bar is arranged.
- the cooling section has at least one spray bar, which is arranged below the Trans ⁇ portrollen.
- the spray bar tubes are usually welded in a series extending parallel to the roller axes and projecting upwards in the direction of the rolling stock. The tubes are seen both in the transport direction seen from the transport rollers and seen in the direction of the roller axes from each other. The removal of the applied from below to the rolling stock coolant is therefore easily possible.
- the intensive cooling is a novel cooling method for cooling a rolling stock during hot rolling or immediately thereafter. she serves to adjust the microstructure and thus the mechanical properties of the final product.
- so-called AHSS advanced high strength steels
- the lower spray bar must be formed differently than for a laminar cooling.
- the lower spray bar must be sized larger.
- the lower spray bar must cope with the higher pressures occurring during intensive cooling.
- the object of the present invention is to provide a
- Coolant is easily dissipated.
- the object is achieved by a cooling section with the features of claim 1.
- Advantageous embodiments of the cooling section are the subject of the dependent claims 2 to 12.
- the at least one lower spray bar has a base block arranged below the transport rollers, into which a liquid coolant is fed,
- the lengths of the guide sections in the area of the transport rollers are significantly smaller than the distance of the directly adjacent transport rollers from one another. It is possible that the guide sections taper as seen over their entire vertical extent. Alternatively, it is possible that the lengths of the guide portions near the base block are constant. In a preferred embodiment of the invention
- Cooling path is provided that the guide portions are each contiguous to the base block bottom and an ever ⁇ stays awhile upper closure member have containing shell, that the lengths of the guide portions in the area of the respective bottom part are constant, the lengths of the guide portions in the region of the respective upper part to reduce to the respective upper end element and that the respective lower part and the respective upper part are screwed together.
- the assembly and maintenance friendliness can be increased by this configuration.
- cooling section in addition to a tapering of the lengths, provision is made for the guide sections, viewed in the direction of the roller axes, to have a respective width, that the
- Widths are constant in the region of the respective lower part and that to reduce the widths in the region of the respective upper part in the direction of the respective upper end element.
- This embodiment - namely the reduction of the widths - is also feasible from the point of view, if the guide sections are not divided into lower parts and upper parts. In this case, the width at least in the vicinity of the respective upper closing element in the direction of the each ⁇ stays awhile upper closure member to reduce.
- the spray nozzles are screwed into the respective upper end closure element .
- the arranged on the upper end elements spray nozzles generally comprise a plurality of rows of spray nozzles, in particular at least two outer rows of spray nozzles, which are seen in the transport direction of the flat rolled material arranged one behind the other.
- the spray nozzles of the outer rows have a respective main spray direction having a vertically upwardly directed vertical component.
- the main injection directions additionally have a respective horizontal component. The horizontal components of the main injection directions of the outer rows of spray nozzles are directed away from each other in this case.
- the spray nozzles arranged on the upper end elements comprise (in addition) at least one middle row of spray nozzles arranged between the outer rows of spray nozzles when viewed in the transport direction of the flat rolled stock.
- the spray nozzles of the middle row preferably have a main spray direction which is directed purely vertically from bottom to top.
- struts are arranged at least in the base block.
- the base block pressure loads - even changing pressure loads by the switching on and off of the lower spray bar - better cope.
- struts can also be arranged in or on the guide sections. It is preferably provided that the liquid coolant is fed into the base block parallel to the direction of the roller axes. This simplifies the design Substituted ⁇ staltung of the lower spray bar.
- At least one upper spray bar is arranged above the pass line, into which a liquid coolant is likewise fed and on the underside of which further spray nozzles are arranged, by means of which the coolant fed into the upper spray bar from above onto the flat Rolled material is sprayed.
- FIG. 3 shows a partial view of the cooling section of FIG. 1 from FIG
- FIG. 5 enlarges the upper part of a guide section as seen from the side.
- a cooling section for a flat rolling stock 1 has a frame construction 2.
- a plurality of transport rollers 3 are arranged.
- the transport rollers 3 are arranged one behind the other in a transport direction x for the flat rolling stock 1.
- Transport direction x seen immediately adjacent trans- 3 portrollen have a respective distance a from each other.
- the transport rollers 3 are rotatably supported in the frame structure 2 about a respective roller axis 4.
- the roller axes 4 are orthogonal to the transport direction x. They continue to run horizontally.
- the transport rollers 3 thereby form a (horizontal) passline 5 for the flat rolling stock 1.
- Spray bar 6 and its components reference is therefore purely exemplary to understand.
- the lower spray bar 6 has a base block 7.
- the base block 7 is arranged below the transport rollers 3.
- a liquid coolant 8 is fed.
- the feeding of the liquid coolant 8 into the base block 7 from any direction is possible.
- the liquid coolant 8, as indicated in Figure 2 by a correspondingly designated arrow is fed parallel to the direction of the roller axes 4 in the base block 7.
- struts are preferably arranged (not shown in the FIG). If necessary, braces can also be arranged in or on the guide sections 9. These struts are not shown in the FIG.
- the guide section 9 has, according to FIG. 3, an upper closure element 10. On the end element 10 are
- Spray nozzles 11 arranged.
- the liquid coolant 8 which was previously fed into the base block 7, sprayed from below onto the flat rolling stock 1.
- the spray nozzles 11 may in particular be screwed into the upper end element 10.
- the guide section 9 has a length 1.
- the length 1 varies in the vertical direction.
- the length l decreases at least in the vicinity of the upper end element 10 in the direction of the upper end element 10.
- a first inclination angle, which forms the course of the length 1 with the Verti ⁇ kaliques, is usually between 3 ° and 10 °, for example at 4 ° to 7 °. Due to the reduction of the length 1 can be achieved in particular that the length of the 1
- Guide section 9 in the area of the transport rollers 3 is significantly smaller than the distance a of the two immediately adjacent transport rollers 3 from each other.
- the length 1 in this area is preferably at most 80% of the distance a. It can also be even smaller, for example, only up to 50% of the distance a.
- the length 1 is reduced over the entire height of the guide sections 9.
- the length 1 in the vicinity of the base block 7 is constant. It can already there, as shown in FIG 3, smaller than the distance a of the two immediately adjacent transport rollers 3 from each other. However, this is not mandatory.
- the guide section 9 has a lower part 12 adjoining the base block 7.
- the guide section 9 furthermore has an upper part 13.
- the upper part 13 contains the upper end element 10.
- the lower part 12 and the upper part 13 are bolted together via screw 14.
- the length 1 is preferably constant. in the
- the guide section 9 has a width b in the direction of the roller axes 4.
- the width b preferably decreases analogously to the length 1 also in the vicinity of the upper end element 10 in the direction of the upper end element 10.
- the length 1 is preferably constant in the region of the lower part 12. In the region of the upper part 13, on the other hand, the width b decreases in the direction of the upper end element 10.
- Analogous to the length 1 is preferably a stepless Ver ⁇ reduction of the width b.
- a second inclination angle ⁇ which forms the course of the width b with the vertical direction, is generally between 5 ° and 15 °, for example at 7 ° to 12 °.
- ⁇ spray nozzles 11 each comprise at least two outer rows IIa of spray nozzles 11.
- the outer rows x IIa are seen arranged one behind another in the transport direction.
- at least one middle row IIb of spray nozzles 11 may be present. If the middle row IIb of spray nozzles 11 is present, it is arranged in the transporting direction x between the outer spray nozzles IIa.
- the spray nozzles 11 of the outer rows IIa have a respective main spray direction 15.
- the main spray directions 15 have a (common) vertical component, which is - of course - directed from bottom to top.
- the main spray directions 15 of the outer rows IIa of spray nozzles 11 further have, according to FIG.
- the spray nozzles 11 of the middle row IIb also have a respective main spray direction.
- the main spray direction of the spray nozzles 11 of the middle row IIb is not provided with a reference numeral in FIG.
- the main injection direction of the middle Series IIb of spray nozzles 11 is usually purely vertical from bottom to top.
- the lower spray bar 6 in addition to the lower spray bar 6 above the passline 5, at least one upper spray bar 16 is arranged. In the upper spray bar 16, a liquid coolant 8 is also fed.
- the top spray bar 16 has on its underside further spray nozzles - for Un ⁇ terscheidung of the spray nozzles 11 of the lower spray bar 6 by the reference numeral 17 is provided.
- the spray nozzles 17 of the upper spray bar 16 the injected into the upper spray bar 16 coolant 8 is sprayed from above onto the flat rolling stock 1.
- the present invention has many advantages.
- the coolant consumption of the lower spray bar 6 can be significantly reduced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14707680.6A EP2978545B1 (de) | 2013-03-25 | 2014-02-19 | Kühlstrecke mit unterem spritzbalken |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13160792.1A EP2783766A1 (de) | 2013-03-25 | 2013-03-25 | Kühlstrecke mit unterem Spritzbalken |
PCT/EP2014/053186 WO2014154399A1 (de) | 2013-03-25 | 2014-02-19 | Kühlstrecke mit unterem spritzbalken |
EP14707680.6A EP2978545B1 (de) | 2013-03-25 | 2014-02-19 | Kühlstrecke mit unterem spritzbalken |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2978545A1 true EP2978545A1 (de) | 2016-02-03 |
EP2978545B1 EP2978545B1 (de) | 2017-03-29 |
Family
ID=47998234
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13160792.1A Withdrawn EP2783766A1 (de) | 2013-03-25 | 2013-03-25 | Kühlstrecke mit unterem Spritzbalken |
EP14707680.6A Active EP2978545B1 (de) | 2013-03-25 | 2014-02-19 | Kühlstrecke mit unterem spritzbalken |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13160792.1A Withdrawn EP2783766A1 (de) | 2013-03-25 | 2013-03-25 | Kühlstrecke mit unterem Spritzbalken |
Country Status (6)
Country | Link |
---|---|
US (1) | US9878358B2 (de) |
EP (2) | EP2783766A1 (de) |
JP (1) | JP6177990B2 (de) |
CN (1) | CN105163877B (de) |
RU (1) | RU2659541C2 (de) |
WO (1) | WO2014154399A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3251764B1 (de) * | 2016-05-31 | 2019-07-03 | Primetals Technologies Austria GmbH | Verfahren und vorrichtung zur stabilisierung einer bewegung eines gewalzten metallischen bandes auf einem rollgang |
WO2018179449A1 (ja) | 2017-03-31 | 2018-10-04 | 新日鐵住金株式会社 | 熱延鋼板の冷却装置、および熱延鋼板の冷却方法 |
CN108746207B (zh) * | 2018-06-15 | 2023-06-16 | 甘肃酒钢集团宏兴钢铁股份有限公司 | 一种悬浮式带材运送装置 |
DE102019106730A1 (de) * | 2019-03-18 | 2020-01-02 | Primetals Technologies Austria GmbH | Kühlung von flachem Walzgut ohne Nachlaufen des Headers |
DE102020205251B3 (de) * | 2020-04-24 | 2021-10-07 | Kocks Technik Gmbh & Co Kg | Vorrichtung zum Kühlen oder Führen eines Langproduktes |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5752104Y2 (de) * | 1978-04-10 | 1982-11-12 | ||
JPS57156830A (en) | 1981-03-24 | 1982-09-28 | Kawasaki Steel Corp | Cooling method for rolling material |
JPS58163519A (ja) * | 1982-03-23 | 1983-09-28 | Kobe Steel Ltd | 鋼板冷却装置 |
US4497180A (en) * | 1984-03-29 | 1985-02-05 | National Steel Corporation | Method and apparatus useful in cooling hot strip |
BE900784A (fr) * | 1984-10-09 | 1985-04-09 | Centre Rech Metallurgique | Dispositif pour refroidir un produit metallique en mouvement et installation en comportant l'apllication. |
NL9001462A (nl) * | 1990-06-27 | 1992-01-16 | Hoogovens Groep Bv | Koelsysteem voor het koelen van een bewegende metaalband. |
JPH0459115A (ja) * | 1990-06-28 | 1992-02-26 | Kawasaki Steel Corp | 金属ストリップの冷却方法 |
DE4024605A1 (de) * | 1990-08-02 | 1992-02-06 | Wsp Ingenieurgesellschaft Fuer | Vorrichtung zur abkuehlung von strangpressprofilen |
JP2898873B2 (ja) * | 1994-01-31 | 1999-06-02 | 川崎製鉄株式会社 | 高温金属板の下面冷却装置 |
JP3066791B2 (ja) * | 1995-09-22 | 2000-07-17 | 日本鋼管株式会社 | 鋼板の冷却装置 |
BE1011611A6 (fr) * | 1997-12-15 | 1999-11-09 | Centre Rech Metallurgique | Dispositif de refroidissement a tres haute puissance specifique d'une bande metallique en mouvement. |
DE20006508U1 (de) * | 2000-04-08 | 2000-08-31 | Achenbach Buschhütten GmbH, 57223 Kreuztal | Walzenkühl- und/oder Schmiervorrichtung für Kaltbandwalzwerke, insbesondere Feinband- und Folienwalzwerke |
DE10215229A1 (de) * | 2002-04-06 | 2003-10-16 | Sms Demag Ag | Vorrichtung zum Kühlen von Walzgut innerhalb der Kühlstrecke einer Walzanlage |
KR100642656B1 (ko) | 2002-08-08 | 2006-11-03 | 제이에프이 스틸 가부시키가이샤 | 열연강대의 냉각장치, 열연강대의 제조방법 및 열연강대의제조라인 |
DE102004015741A1 (de) * | 2004-03-29 | 2005-10-20 | Sms Demag Ag | Vorrichtung zum Kühlen von Blechen und Bändern |
JP4774887B2 (ja) | 2005-09-27 | 2011-09-14 | Jfeスチール株式会社 | 鋼板の冷却設備および製造方法 |
CN201200991Y (zh) | 2008-06-19 | 2009-03-04 | 武汉钢铁(集团)公司 | 热机械控轧控冷钢板平整控冷装置 |
CN101767113B (zh) | 2009-12-22 | 2012-09-05 | 马鞍山钢铁股份有限公司 | 热轧h型钢轧后控制冷却装置 |
-
2013
- 2013-03-25 EP EP13160792.1A patent/EP2783766A1/de not_active Withdrawn
-
2014
- 2014-02-19 EP EP14707680.6A patent/EP2978545B1/de active Active
- 2014-02-19 WO PCT/EP2014/053186 patent/WO2014154399A1/de active Application Filing
- 2014-02-19 CN CN201480018354.7A patent/CN105163877B/zh active Active
- 2014-02-19 RU RU2015145470A patent/RU2659541C2/ru active
- 2014-02-19 JP JP2016504523A patent/JP6177990B2/ja active Active
- 2014-02-19 US US14/779,575 patent/US9878358B2/en active Active
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2014154399A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN105163877A (zh) | 2015-12-16 |
CN105163877B (zh) | 2017-09-22 |
JP2016519619A (ja) | 2016-07-07 |
US9878358B2 (en) | 2018-01-30 |
EP2978545B1 (de) | 2017-03-29 |
RU2015145470A (ru) | 2017-05-03 |
JP6177990B2 (ja) | 2017-08-09 |
US20160052034A1 (en) | 2016-02-25 |
RU2659541C2 (ru) | 2018-07-02 |
EP2783766A1 (de) | 2014-10-01 |
WO2014154399A1 (de) | 2014-10-02 |
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