CN101233246A - Device for cooling a metal strip - Google Patents
Device for cooling a metal strip Download PDFInfo
- Publication number
- CN101233246A CN101233246A CNA2006800281352A CN200680028135A CN101233246A CN 101233246 A CN101233246 A CN 101233246A CN A2006800281352 A CNA2006800281352 A CN A2006800281352A CN 200680028135 A CN200680028135 A CN 200680028135A CN 101233246 A CN101233246 A CN 101233246A
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- Prior art keywords
- nozzle
- strip
- bellows
- vertical wall
- cooling
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Abstract
A device for cooling a metal strip (1) is disclosed, comprising at least two opposing nozzle regions facing the metal strip (1) continuously conveyed in the longitudinal direction thereof, with nozzles directed at the corresponding strip surface connected to collector boxes (3) for a cooling gas with flow channels (5) provided between the nozzles for escape of the cooling gas deflected from the strip surface from the nozzle. According to the invention, advantageous cooling conditions are achieved, by a grouped arrangement of nozzles in parallel adjacent nozzle strips (4) with a lateral separation from each other with nozzle openings (7) distributed over the length of the nozzle strips (4) directed at the corresponding strip surface and connected to gas channels (6) which are connected to the collector boxes (3) and the flow channels (5) for escape of the cooling gas flows are provided between the nozzle strips (4) running perpendicular to the collector boxes (3).
Description
Technical field
The present invention relates to be used for the device of cool metal band, described device comprises at least two with respect to the sheet metal strip mentioned nozzle area positioned opposite to each other of carrying continuously on its longitudinal direction, described two mentioned nozzle area, described mentioned nozzle area comprise the corresponding strip surface of some alignings, be connected to the nozzle on the bellows that are used for cooling gas, and described device also is included in the flow passage that is provided with between each nozzle, is used to eject on the surface at band of nozzle turn at cooling draught.
Background technology
Form undesirable histological structure or precipitation in order to restrain after the sheet metal strip thermal treatment that especially is formed from steel; these sheet metal strips must very fast cooling; described quick cooling by means of shielding gas normally the mixture of hydrogen and nitrogen carry out so that avoid region generating oxidizing reaction in strip surface.In order to reach desired cooling gradient, described cooling gradient is the steel band of 1mm for thickness of strip, according to alloy compositions at 50 ℃/S between up to 150 ℃/S, cooling gas must blow facing to the surface of band with high speed, and must be again from this discharge.For this reason, known (EP 1,029 933 B1) be provided on the both sides of sheet metal strip extend on its longitudinal direction, with lateral spacing side by side bellows mutually, described bellows comprise aims at flat burner corresponding strip surface, that extend transverse to the longitudinal direction of band.Replenishing mutually with successive nozzle row with spacing side by side flat burner successively on vertically at band of each bellows, above-mentioned successive nozzle row is transverse to the longitudinal direction extension of band.Therefore the cooling gas that flows out from flat nozzle and turn on the surface of band can be arranged between the nozzle and discharge at each.Except the following fact is promptly compared with flat burner, under the mentioned nozzle area situation that constitutes with round nozzle, generally can reach is applied on the strip surface with cooling gas more equably, be to pass resulting flow passage between each nozzle row in this known device by bellows, this causes uneven outflow condition, the risk of described uneven outflow conditions accompanying is that owing to the band torsional deformation appears in inhomogeneous cooling, it needs subsequently sheet metal strip to be aligned.
Summary of the invention
Therefore, the objective of the invention is, a kind of device that is used to cool off the above-mentioned type band is provided, so that can guarantee under height cooling gradient situation cool metal band equably, and without any the risk of band torsional deformation.
The present invention reaches the purpose that is proposed by following measure, also being about to nozzle is combined in groups be parallel to each other side by side nozzle strip of lateral spacing, described nozzle strip comprises the gas passage that is connected with bellows, described gas passage has the jet hole of aiming at corresponding strip surface and distributing on the length of nozzle strip, and the flow passage that is used to discharge cooling draught is arranged between the nozzle strip that extends transverse to bellows.
Be formed for the nozzle strip of the gas passage of cooling gas by use, the mentioned nozzle area of band round nozzle can be set in simple mode, described mentioned nozzle area obtains by the jet hole that is provided with in nozzle strip and distribute on the length of nozzle strip.Because the distance between side by side the nozzle strip guarantees the cooling draught that favourable discharge turns on strip surface successively, described cooling draught can pass being sucked out of flow passage between the nozzle strip with lower pressure loss.Because round nozzle and discharging at the cooling draught that turns on strip surface between the nozzle strip can keep favourable cooling conditions to sheet metal strip, therefore can guarantee the even cooling of sheet metal strip, and without any the risk of torsional deformation.
In order to eliminate bellows to discharging the disadvantageous effect of cooling gas, nozzle strip can be connected with bellows on their distolateral one of them.In this case, bellows are located at outside the mobile flow region that leaves between the nozzle strip of cooling gas.Also nozzle strip can be connected on the bellows in their longitudinal center, this makes in that to keep nozzle distance to exceed mutually under the situation of nozzle strip side by side nozzle strip easier side by side mutually longitudinally along it.In order to guarantee to keep uniform cooling gas to flow to each jet hole in nozzle strip, the flow cross section of each nozzle strip can dwindle to its end gradually from the junction with corresponding bellows.
In order to produce particularly advantageous structural environment, also can set, be respectively equipped with two each other the nozzle row's of dislocation spacing nozzle strip have between the vertical wall part that encircles portion at two and form nozzle, the above-mentioned arch portion and respective nozzles passage and replenishes mutually, and go out the dividing plate that the vertical wall part that adjoins each other between the portion forms the nozzle that alternately interconnects two nozzle rows in edge section hogging, wherein vertical wall part separates extension with vertical wall of gas passage.Because according to this measure only vertically the end face of the longitudinal edge of wall part aim at the surface of band, and vertically wall part adjoins each other in the edge section between each nozzle, thereby in the zone of the edge section that adjoins each other, obtain and the vertically extending dividing plate of strip surface, described dividing plate alternately connects each nozzle of two row's nozzles, to be divided into two branch fluids with a kind of to the favourable mode that flows by dividing plate in the zone of the cooling draught that turns to equably to all sides on the strip surface at nozzle strip under the situation of circular jet nozzle, above-mentioned two branch fluids are discharged by the flow passage between nozzle strip.Separate vertical wall part of extension in order to be used for the backflow formation spigot surface of cooling draught from the edge section that adjoins each other to vertical wall of gas passage, described cooling draught flow to flow passage between nozzle strip along the cooling draught that turns to, and is formed with and is beneficial to the effusive eddy current that reduces.
Each nozzle self is not to be formed by jet hole, but is additionally formed by nozzle passage, and described nozzle passage encircles between the portion at two vertical wall parts of each nozzle strip paired mutual opposed respectively and obtains.The cross section trend that the aligned that guarantees the definite nozzle passage by being used for cooling gas thus flows out direction and mentioned nozzle area nozzle strip has nothing to do, it is all the more so when especially the height of measuring on the direction of nozzle shaft of dividing plate is corresponding with average nozzle diameter at least, because each nozzle passage has and the corresponding minimum length of their mean diameter in this case, described dividing plate forms by the vertical wall part that adjoins each other of nozzle strip.
Because dividing plate alternately interconnects two nozzle rows' of each nozzle strip nozzle, under the situation of the dividing plate of the axis that passes direct interconnective nozzle trend, vertically the arch of wall part goes out portion and correspondingly protrudes in the inboard that the arch of arranging towards another nozzle goes out portion than it in the outside of another nozzle dorsad biglyyer, encircle when portion when compacting like this, can cause vertical wall part at the outside and inboard different loads.For fear of relevant therewith shortcoming, can be arranged on the butting surface between vertical wall part of the formation nozzle in each mentioned nozzle area nozzle along in the diametral plane that extends on the longitudinal direction of nozzle strip, obtain symmetric condition so that go out portion with respect to the arch of two vertical wall parts of nozzle strip, the above-mentioned arch portion and puts toward each other in pairs.
Description of drawings
Theme of the present invention is shown to example in the accompanying drawings, wherein:
Fig. 1 illustrates the longitudinal sectional view according to the simplification of the device that is used for the cool metal band of the present invention;
Fig. 2 illustrates the sectional view of this device along Fig. 1 center line II-II;
Fig. 3 illustrates along the sectional view of Fig. 1 center line III-III;
Fig. 4 is illustrated in according to the embodiment variant of device of the present invention and according to the corresponding diagrammatic sketch of Fig. 1;
Fig. 5 illustrates along the sectional view of the line V-V of Fig. 4;
Fig. 6 illustrates nozzle strip according to another embodiment of device of the present invention with schematic side;
Fig. 7 illustrates the partial side view of nozzle strip in the zone of the vertical wall part that forms nozzle strip according to Fig. 6 with the ratio of amplifying;
Fig. 8 illustrates the top view according to the described nozzle strip of Fig. 7; With
Fig. 9 illustrates along the sectional view of the line IX-IX of Fig. 8.
Embodiment
According to Fig. 1-3, the shown refrigerating unit that is used for sheet metal strip 1 comprises shell 2, and sheet metal strip 1 to be cooled passes above-mentioned shell 2 and carries continuously towards feedstock direction s.Sheet metal strip 1 two on be provided with some be used for cooling air for example volume percent be that 95% nitrogen and volume percent are the bellows 3 of the gaseous mixture of 5% hydrogen.Nozzle strip 4 is connected on the above-mentioned bellows 3, and described nozzle strip extend side by side in parallel to each other, and forms flow passage 5 between them.Nozzle strip 4 itself is that orthogonal gas passage 6 constitutes with cross section, described gas passage 6, and it dwindles gradually from bellows 3 beginnings, and has round nozzle mouth 7 on a side of sheet metal strip 1.Each jet hole 7 is distributed on the length that is connected to corresponding bellows 3 upper spray nozzle bars 4 and becomes a row ground to be provided with, so that obtain a mentioned nozzle area, the said nozzle zone has the circular beam nozzle on the surface portion that is evenly distributed in sheet metal strip 1, as especially finding out among Fig. 2.The jet hole 7 intersecting dislocation gaps of adjacent nozzle bar 4.
Turn on the surface of band facing to the effusive cooling draught of strip surface from jet hole 7, and from sheet metal strip 1, discharge by the flow passage 5 between nozzle web 4, represented as the flow arrow among Fig. 3.Because shell 2 forms a collecting chamber in order to discharge cooling draught, can cooling gas be derived from shell 2 by discharge nozzle 8.According to embodiment, nozzle strip 4 is extending on the longitudinal direction of band 1 that is on direction of feed s, this also allows to form the nozzle 7 with flow cross sections different on the length of nozzle strip, and needn't worry any uneven cooling of band, because each nozzle strip 4 is mutually the same, so guarantee that the refrigerative gas transverse is in the uniform flow distribution of the longitudinal direction of band.In addition, when the nozzle strip on the border side 4 was blocked by relevant bellows 3, refrigerating unit 4 can be adjusted to different strip width with plain mode, so that no longer to these nozzle strips 4 supply cooling gases of the width outside of sheet metal strip 1.The aligning of each nozzle strip 4 on the longitudinal direction of sheet metal strip 1 is not enforceable.
According to the described embodiment of Figure 4 and 5 with according to the described embodiment of Fig. 1-3 significantly different only be the shape of each nozzle strip 4, above-mentioned each nozzle strip 4 is to be connected on the bellows 3 in their longitudinal center.Therefore the gas passage 6 of each nozzle strip 4 extends to the both sides of relevant bellows 3, obtains the portion that dwindles towards the two ends of gas passage 6 in addition, so that reach even supply nozzle mouth 7.As Fig. 5 as can be seen, each nozzle strip 4 all is provided with two row's jet holes 7, simultaneously two row's jet holes, 7 intersecting dislocations.Utilize jet hole 7 such arrangements can use same nozzle bar 4, this has simplified production.
According to the described embodiment of Fig. 6-9, mentioned nozzle area is formed by the nozzle passage 9 on some surface portions that are evenly distributed on sheet metal strip 1.According to Fig. 9, turn on the surface of band 1 again facing to the effusive cooling draught of strip surface from nozzle pipe 9, and from sheet metal strip 1, discharge by the flow passage 5 between each nozzle strip 4, represented as flow arrow.
Each nozzle 7 of each nozzle strip 4 is to form between two vertical wall parts 10 of nozzle strip 4.These vertical wall parts 10 all are provided with and encircle portion 11, the described arch portion 11 each other in opposed mutually and additional mutually with nozzle passage 9 over the ground, and encircle between the portion at each, each vertical wall part 10 adjoins each other in the edge section, and form the dividing plate 12 of each nozzle 7 alternately interconnect two nozzles rows, as especially as shown in Fig. 8.Each vertical wall part 10 extends to vertical wall 14 of the gas passage 6 of nozzle strip 4 at the guide surface 13 that is formed for being back to the cooling draught in the flow passage with being separated from each other from aforementioned barriers 12.Therefore the cooling draught that turns on strip surface in the zone of dividing plate 12 with each nozzle strip 4 is divided into two branch air-flows, and according to the diagrammatic sketch of Fig. 9 they is derived to the both sides of nozzle strip 4, provides favourable flow condition to the backflow of the cooling draught that turns to.Because with respect to gas passage 6 separated vertical wall parts 10, produce asymmetry in the inflow region of each nozzle passage 9, described asymmetry has adverse influence to the aligning from nozzle 7 effusive cooling draughts.In order to get rid of this adverse influence, nozzle passage 9 can have a minimum length, and described minimum length is equivalent to their mean diameter.
Fig. 8 illustrates, and vertically the butting surface 15 between the wall part 10 is arranged in the diametral plane that extends on the longitudinal direction of each nozzle strip 4 of nozzle passage 9 in the zone of nozzle 7.This is configured for evenly forming the arch that is provided with in pairs relative to one another and goes out the favourable prerequisite of portion 11,, and therefore encircle two vertical wall parts 10 of more uniform loading when portion 11 at impression.
Claims (7)
1. device that is used for cool metal band (1), comprise at least two with respect to sheet metal strip (1) mentioned nozzle area opposite each other of on its longitudinal direction, carrying continuously, described mentioned nozzle area comprises the corresponding strip surface of sensing, be connected to the nozzle on the bellows (3) that are used for cooling gas, and this device also comprises the flow passage (5) that is arranged between each nozzle, be used to discharge the cooling draught that turns in strip surface that comes out from nozzle, it is characterized in that, each nozzle is combined in groups with the parallel mutual nozzle strip (4) side by side of lateral distance, described nozzle strip comprises the gas passage (6) that is connected with bellows (3), described gas passage has the corresponding strip surface of sensing, the jet hole that on the length of nozzle strip (4), distributes (7), and the flow passage (5) that is used to discharge cooling draught is arranged between the nozzle strip (4) that extends transverse to bellows (3).
2. according to the described device of claim 1, it is characterized in that each nozzle strip (3) is connected with bellows (3) on its distolateral one of them.
3. according to the described device of claim 1, it is characterized in that each nozzle strip (4) is connected with bellows (3) at its longitudinal center place.
4. according to one of them described device of claim 1-3, it is characterized in that the flow cross section of each nozzle strip (4) dwindles to the end direction of nozzle strip from the junction with each bellows.
5. according to one of them described device of claim 1-4, it is characterized in that, respectively be provided with each other the two nozzles row's in dislocation gap nozzle strip (4) forms plurality of nozzles (7) between two vertical wall parts (10), above-mentioned vertical wall part has the arch that replenishes mutually with each nozzle passage (9) and goes out portion (11), and the arch in the edge section goes out the dividing plate (12) that the vertical wall (10) that adjoins each other between the portion (11) forms the nozzle (7) that alternately interconnects two nozzle rows at least, and wherein vertically vertical wall (14) of wall part (10) and gas passage (6) extends dividually.
6. according to the described device of claim 5, it is characterized in that the dividing plate (12) that the vertical wall part (10) that adjoins each other by nozzle strip (4) forms is equivalent to average nozzle diameter at least at the height of the directional survey of nozzle passage (9).
7. according to claim 5 or 6 described devices, it is characterized in that the butting surface (15) between the vertical wall part (10) that forms nozzle (7) is positioned at the diametral plane that the longitudinal direction along nozzle strip (4) of nozzle (7) extends in the zone of each nozzle (7).
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA1288/2005 | 2005-08-01 | ||
| AT12882005A AT502239B1 (en) | 2005-08-01 | 2005-08-01 | Device for cooling metal strip, e.g. steel strip after heat treatment, comprises groups of nozzles arranged in parallel nozzle strips with flow channels between them for removing cooling gas deflected from the metal strip |
| ATA678/2006 | 2006-04-21 | ||
| AT6782006A AT503597B1 (en) | 2006-04-21 | 2006-04-21 | Device for cooling metal strip, e.g. steel strip after heat treatment, comprises groups of nozzles arranged in parallel nozzle strips with flow channels between them for removing cooling gas deflected from the metal strip |
| PCT/AT2006/000302 WO2007014406A1 (en) | 2005-08-01 | 2006-07-14 | Device for cooling a metal strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101233246A true CN101233246A (en) | 2008-07-30 |
| CN101233246B CN101233246B (en) | 2010-09-15 |
Family
ID=37685461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800281352A Expired - Fee Related CN101233246B (en) | 2005-08-01 | 2006-07-14 | Device for cooling a metal strip |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101233246B (en) |
| AT (1) | AT502239B1 (en) |
| UA (1) | UA91863C2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416408A (en) * | 2011-12-12 | 2012-04-18 | 马鞍山市天亿机械有限责任公司 | Cross type reverse blow drying device |
| CN104203441A (en) * | 2012-02-02 | 2014-12-10 | 西马克·西马格公司 | Device for straightening a flow for cooling a roll or a metal strip |
| CN108136464A (en) * | 2015-05-29 | 2018-06-08 | 奥钢联钢铁有限责任公司 | Treat the uniform contactless temperature control method and its device on the non-endless surface of temperature control |
| CN110462068A (en) * | 2017-04-07 | 2019-11-15 | 施瓦兹有限责任公司 | The tempering station of local heat treatmet for metal assembly |
| CN111622010A (en) * | 2020-06-16 | 2020-09-04 | 杭州羽邦印务有限公司 | A press polish cooling body for glazing press polish integration equipment |
| CN112439784A (en) * | 2019-08-29 | 2021-03-05 | 青岛九环新越新能源科技股份有限公司 | Production method of composite metal belt based on liquid metal |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR8504750A (en) * | 1984-11-14 | 1986-07-22 | Nippon Steel Corp | STRIP COATING APPLIANCE FOR A CONTINUOUS IRONING OVEN |
| US5137586A (en) * | 1991-01-02 | 1992-08-11 | Klink James H | Method for continuous annealing of metal strips |
| FR2738577B1 (en) * | 1995-09-12 | 1998-03-13 | Selas Sa | COOLING DEVICE FOR A LAMINATED PRODUCT |
| TW420718B (en) * | 1995-12-26 | 2001-02-01 | Nippon Steel Corp | Primary cooling method in continuously annealing steel strip |
| FR2789757B1 (en) * | 1999-02-16 | 2001-05-11 | Selas Sa | DEVICE FOR EXCHANGING HEAT WITH A FLAT PRODUCT |
| FR2796139B1 (en) * | 1999-07-06 | 2001-11-09 | Stein Heurtey | METHOD AND DEVICE FOR SUPPRESSING THE VIBRATION OF STRIPS IN GAS BLOWING ZONES, ESPECIALLY COOLING ZONES |
| GB2352731A (en) * | 1999-07-29 | 2001-02-07 | British Steel Plc | Strip cooling apparatus |
| CA2438122C (en) * | 2001-04-02 | 2008-11-04 | Nippon Steel Corporation | Rapid cooling apparatus for steel strip in continuous annealing facility |
| JP4331982B2 (en) * | 2002-09-27 | 2009-09-16 | 新日本製鐵株式会社 | Steel strip cooling device |
-
2005
- 2005-08-01 AT AT12882005A patent/AT502239B1/en not_active IP Right Cessation
-
2006
- 2006-07-14 UA UAA200801134A patent/UA91863C2/en unknown
- 2006-07-14 CN CN2006800281352A patent/CN101233246B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416408A (en) * | 2011-12-12 | 2012-04-18 | 马鞍山市天亿机械有限责任公司 | Cross type reverse blow drying device |
| CN102416408B (en) * | 2011-12-12 | 2013-07-31 | 马鞍山市天亿机械有限责任公司 | Cross type reverse blow drying device |
| CN104203441A (en) * | 2012-02-02 | 2014-12-10 | 西马克·西马格公司 | Device for straightening a flow for cooling a roll or a metal strip |
| CN108136464A (en) * | 2015-05-29 | 2018-06-08 | 奥钢联钢铁有限责任公司 | Treat the uniform contactless temperature control method and its device on the non-endless surface of temperature control |
| CN110462068A (en) * | 2017-04-07 | 2019-11-15 | 施瓦兹有限责任公司 | The tempering station of local heat treatmet for metal assembly |
| CN110462068B (en) * | 2017-04-07 | 2021-06-08 | 施瓦兹有限责任公司 | Tempering station for the localized heat treatment of metal components |
| CN112439784A (en) * | 2019-08-29 | 2021-03-05 | 青岛九环新越新能源科技股份有限公司 | Production method of composite metal belt based on liquid metal |
| CN112439784B (en) * | 2019-08-29 | 2023-09-22 | 青岛九环新越新能源科技股份有限公司 | Composite metal belt production method based on liquid metal |
| CN111622010A (en) * | 2020-06-16 | 2020-09-04 | 杭州羽邦印务有限公司 | A press polish cooling body for glazing press polish integration equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| AT502239A1 (en) | 2007-02-15 |
| CN101233246B (en) | 2010-09-15 |
| UA91863C2 (en) | 2010-09-10 |
| AT502239B1 (en) | 2007-07-15 |
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