EP0924003A2 - Cooling device for cooling a moving hot metal strip - Google Patents
Cooling device for cooling a moving hot metal strip Download PDFInfo
- Publication number
- EP0924003A2 EP0924003A2 EP98122254A EP98122254A EP0924003A2 EP 0924003 A2 EP0924003 A2 EP 0924003A2 EP 98122254 A EP98122254 A EP 98122254A EP 98122254 A EP98122254 A EP 98122254A EP 0924003 A2 EP0924003 A2 EP 0924003A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- coolant
- cooling device
- shut
- coolant discharge
- lines
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 40
- 239000002184 metal Substances 0.000 title claims abstract description 10
- 239000002826 coolant Substances 0.000 claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000003381 stabilizer Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
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
- 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
- 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
Definitions
- the invention relates to a cooling device for cooling a hot moving metal strip by means of laminar coolant jets, consisting of at least one transverse to the tape running direction arranged water box into which at least one coolant supply line opens and from which a plurality of spaced-apart coolant outlets emerge.
- the hot strip is cooled by laminar cooling water jets, whereby the cooling effect depends very much on the formation of these cooling water jets.
- a Laminar cooling water jet leads to a much stronger cooling than a turbulent one Jet, since a laminar cooling water jet is able to stick to the hot strip surface break through forming vapor layer and thus achieve a higher cooling effect.
- a laminar cooling water section essentially consists of several in a row arranged, extending transversely to the tape running water boxes, each Water box has a variety of cooling water drains.
- Such Cooling device is already known from DE-OS 21 07 664.
- the cooling water drains formed by siphon tubes arranged next to one another transversely to the direction of tape travel, through which the cooling water is applied to the belt surface.
- the object of the invention is therefore to avoid these disadvantages and a cooling device to propose to cool a hot moving metal strip by means of laminar coolant jets, which not only during operation but also in the switch-on and Shutdown phase of the cooling device uniform flow conditions in the coolant jets occur and especially after switching off an uncontrolled flow of Coolant is safely avoided.
- each coolant discharge has a shut-off device on the outlet side assigned.
- the shut-off device is designed as a slide or ball valve.
- a significant simplification of the cooling device results from the fact that several or all shut-off devices assigned to the individual coolant discharge lines are mechanically coupled and are connected to a common adjustment drive.
- the mechanically coupled shut-off devices are formed by a shift shaft which is transverse to the longitudinal axis of the shift shaft at a distance of Coolant discharges to each other through openings and that with an adjustment drive from a position in which the through openings with the coolant drains aligned in a position in which the selector shaft blocks the coolant discharge is adjustable and vice versa.
- the selector shaft is mounted in a multi-part housing, in which the coolant drains open, and in the area penetrated by through openings Switching shaft in the housing shells inserted annular sealing shells are arranged, which with the coolant discharge lines and the through openings penetrating the selector shaft have aligned through openings.
- a further stabilization of the flow conditions is achieved in that each coolant drain a diffuser for bundling the coolant jet is assigned, the Shut-off device is arranged downstream of the diffuser and the diameter of the through opening is larger than the diameter of the outlet opening in the diffuser.
- the coolant discharge lines are downpipes trained, which project substantially vertically upwards in the water tank.
- the coolant discharge lines are downpipes trained, which project substantially vertically upwards in the water tank.
- the from DE-OS 21 07 664 known U-tubes result in manufacturing advantages that lead to a substantial reduction in the cost of the cooling device. Overall, one emerges significantly more compact assembly, eliminating the risk of damage from rising or getting stuck Band is significantly reduced.
- a flow stabilizer is installed in each Coolant drainage.
- This flow stabilizer is formed by at least one insert, preferably of two at right angles to each other, inserted in the coolant drain and the cross-sectional area of the Coolant drainage in segments dividing guide elements, preferably composed of sheets is.
- Fig. 1 shows a possible embodiment of the cooling device according to the invention for Cooling a moving hot metal strip 1 by means of laminar coolant jets.
- the hot Metal strip 1 is in this case on a transport roller table indicated by a roller table roller 2 challenged from a rolling mill, not shown, or a single roll stand and at a distance below the cooling device with a preselected transport speed transported.
- the cooling device consists of several in a row Water boxes 3 arranged in the direction of belt travel, one of which is shown in FIGS. 1 and 2 is shown.
- the water tank 3 has a central coolant supply 4 and a large number of coolant discharge lines 5 arranged in two rows (FIG.
- shut-off devices 6 which serve as downpipes are formed and protrude vertically upwards inside the water box 3. Exit side connect to the coolant discharge lines 5 shut-off devices 6, with which the exit of Coolant from all coolant discharge lines 5 interrupted or started at the same time can be.
- the type of shut-off device is largely arbitrary. Is restrictive only to be taken into account here that the coolant jet leaving the shut-off device 6 must have laminar flow properties.
- the shut-off devices 6 can for example be designed as a slide or ball valves.
- the shut-off elements 6 are shown in FIGS. 1 and 2 coupled by a common switching shaft 7, which is connected to a common adjustment drive 9 is connected.
- Fig. 3 this is by a continuous shift shaft 7 and a multi-part housing 10, 11, 12 to a single compact component shutoff 6 shown in detail.
- the control shaft 7 is at a distance from the central axes 13, 14 of the coolant lines 5 from Passages through 15, which in the open position of the shift shaft 7 with the Coolant lines 5 are aligned.
- the selector shaft 7 With the adjustment drive 9, the selector shaft 7 is in a 90 ° pivoted closed position blocking the flow of the coolant is rotatable.
- the Switch shaft 7 is in a two-part housing formed by two housing shells 10, 11 via rotary bearings 16, 17 rotatably mounted and by means of axial bearings 18 in position to Coolant discharges 5 set.
- the coolant discharge lines 5 open into the housing 12, each coolant discharge line 5 a diffuser 21 inserted into the housing 12 for sealing the bundling of the Coolant jets is assigned.
- the clear width of the passage opening takes in the diffuser 21 linearly in the direction of flow and then expands in the shut-off device 6 erratic, so that the diameter of the through hole 15 is larger than the diameter the passage channel in the diffuser 21.
- a flow stabilizer 22 is located in each coolant discharge line 5 to stabilize the flow built-in, of two guide elements standing cross-shaped at right angles to each other 23, 24, preferably sheet metal is formed, through which the open cross-sectional area of the coolant drain is divided into four segments of equal size over a limited distance.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
Description
Die Erfindung betrifft eine Kühlvorrichtung zum Kühlen eines heißen bewegten Metallbandes mittels laminarer Kühlmittelstrahlen, bestehend aus mindestens einem quer zur Bandlaufrichtung angeordneten Wasserkasten, in den mindestens eine Kühlmittelzuführleitung mündet und aus dem eine Vielzahl von im Abstand voneinander angeordneten Kühlmittelableitungen austreten.The invention relates to a cooling device for cooling a hot moving metal strip by means of laminar coolant jets, consisting of at least one transverse to the tape running direction arranged water box into which at least one coolant supply line opens and from which a plurality of spaced-apart coolant outlets emerge.
Die Abkühlung eines gewalzten Warmbandes im Bereich einer Warmwalzstraße, im besonderen am Auslaufrollgang einer Fertigstraße erfolgt üblicherweise in einer Laminarkühlstrecke. Das Warmband wird hierbei von laminaren Kühlwasserstrahlen abgekühlt, wobei die Kühlwirkung sehr stark von der Ausbildung dieser Kühlwasserstrahlen abhängt. Ein laminarer Kühlwasserstrahl führt zu einer deutlich stärkeren Abkühlung als ein turbulenter Strahl, da ein laminarer Kühlwasserstrahl in der Lage ist, die sich an der Warmbandoberfläche bildende Dampfschicht zu durchbrechen und so eine höhere Kühlwirkung zu erzielen.The cooling of a rolled hot strip in the area of a hot rolling mill, in Especially on the exit roller table of a finishing train, this is usually done in a laminar cooling section. The hot strip is cooled by laminar cooling water jets, whereby the cooling effect depends very much on the formation of these cooling water jets. A Laminar cooling water jet leads to a much stronger cooling than a turbulent one Jet, since a laminar cooling water jet is able to stick to the hot strip surface break through forming vapor layer and thus achieve a higher cooling effect.
Eine laminare Kühlwasserstrecke besteht im wesentlichen aus mehreren hintereinander angeordneten, sich quer zur Bandlaufrichtung erstreckenden Wasserkästen, wobei jeder Wasserkasten über eine Vielzahl von Kühlwasserableitungen verfügt. Eine derartige Kühlvorrichtung ist aus der DE-OS 21 07 664 bereits bekannt. Hier werden die Kühlwasserableitungen von quer zu Bandlaufrichtung nebeneinander angeordneten Siphonrohren gebildet, durch die das Kühlwasser auf die Bandoberfläche aufgebracht wird.A laminar cooling water section essentially consists of several in a row arranged, extending transversely to the tape running water boxes, each Water box has a variety of cooling water drains. Such Cooling device is already known from DE-OS 21 07 664. Here are the cooling water drains formed by siphon tubes arranged next to one another transversely to the direction of tape travel, through which the cooling water is applied to the belt surface.
Beim Einschalten der Kühlvorrichtung ist es erstrebenswert, daß sich der laminare Kühlwasserstrahl unmittelbar einstellt, um sofort eine gleichmäßige Kühlwirkung zu erreichen. Ein turbulenter Kühlwasserstrahl würde nach dem Einschalten zu einer verminderten und nicht reproduzierbaren Kühlwirkung führen. Ebenso ist eine definierte Situation beim Abschalten der Kühlvorrichtung erforderlich. Nachteilig bei Kühlvorrichtungen der oben zitierten Art ist, daß nach dem Abschalten der Kühlvorrichtung noch beträchtliche Mengen an Kühlwasser nachfließen, wobei dieses Nachfließen teilweise völlig ungleichmäßig erfolgt, sodaß wiederum nicht reproduzierbare Verhältnisse auftreten und nur eine sehr eingeschränkte Regelbarkeit gegeben ist.When switching on the cooling device, it is desirable that the laminar cooling water jet immediately to achieve an even cooling effect. A turbulent cooling water jet would decrease and not after switching on reproducible cooling effect. There is also a defined situation when switching off the Cooling device required. A disadvantage of cooling devices of the type cited above is that after switching off the cooling device, considerable amounts of cooling water still flow in, this subsequent flow is sometimes completely uneven, so again not reproducible conditions occur and only a very limited controllability is given is.
Aufgabe der Erfindung ist es daher diese Nachteile zu vermeiden und eine Kühlvorrichtung zum Kühlen eines heißen bewegten Metallbandes mittels laminarer Kühlmittelstrahlen vorzuschlagen, bei der nicht nur während des laufenden Betriebes sondern auch in der Einschalt- und Abschaltphase der Kühlvorrichtung gleichmäßige Strömungsverhältnisse in den Kühlmittelstrahlen auftreten und insbesondere nach dem Abschalten ein unkontrolliertes Nachfließen von Kühlmittel sicher vermieden wird.The object of the invention is therefore to avoid these disadvantages and a cooling device to propose to cool a hot moving metal strip by means of laminar coolant jets, which not only during operation but also in the switch-on and Shutdown phase of the cooling device uniform flow conditions in the coolant jets occur and especially after switching off an uncontrolled flow of Coolant is safely avoided.
Diese Aufgabe wird dadurch gelöst, daß jeder Kühlmittelableitung austrittsseitig ein Absperrorgan zugeordnet ist. Das Absperrorgan ist als Schieber oder Kugelhahn ausgebildet.This object is achieved in that each coolant discharge has a shut-off device on the outlet side assigned. The shut-off device is designed as a slide or ball valve.
Eine wesentliche Vereinfachung der Kühleinrichtung ergibt sich dadurch, däß mehrere oder alle der einzelnen Kühlmittelableitungen zugeordneten Absperrorgane mechanisch gekoppelt und mit einem gemeinsamen Verstellantrieb verbunden sind.A significant simplification of the cooling device results from the fact that several or all shut-off devices assigned to the individual coolant discharge lines are mechanically coupled and are connected to a common adjustment drive.
Eine vorteilhafte Ausgestaltung besteht darin, daß die mechanisch gekoppelten Absperrorgane von einer Schaltwelle gebildet sind, die quer zur Längsachse der Schaltwelle im Abstand der Kühlmittelableitungen zueinander Durchgangsöffnungen aufweist und die mit einem Verstellantrieb von einer Position in der die Durchgangsöffnungen mit den Kühlmittelableitungen fluchten in eine Position, in der die Schaltwelle die Kühlmittelableitungen sperrt, verstellbar ist und umgekehrt. Hierbei ist die Schaltwelle in einem mehrteiligen Gehäuse gelagert, in welches die Kühlmittelableitungen münden, und im Bereich der von Durchgangsöffnungen durchsetzten Schaltwelle in die Gehäuseschalen eingesetzte ringförmige Dichtschalen angeordnet sind, welche mit den Kühlmittelableitungen uind den die Schaltwelle durchsetzenden Durchgangsöffnungen fluchtende Durchtrittsöffnungen aufweisen.An advantageous embodiment is that the mechanically coupled shut-off devices are formed by a shift shaft which is transverse to the longitudinal axis of the shift shaft at a distance of Coolant discharges to each other through openings and that with an adjustment drive from a position in which the through openings with the coolant drains aligned in a position in which the selector shaft blocks the coolant discharge is adjustable and vice versa. Here, the selector shaft is mounted in a multi-part housing, in which the coolant drains open, and in the area penetrated by through openings Switching shaft in the housing shells inserted annular sealing shells are arranged, which with the coolant discharge lines and the through openings penetrating the selector shaft have aligned through openings.
Eine weitere Stabilisierung der Strömungsverhältnisse wird dadurch erzielt, daß jeder Kühlmittelableitung ein Diffusor zur Bündelung des Kühlmittelstrahles zugeordnet ist, wobei das Absperrorgan dem Diffusor nachgeordnet ist und der Durchmesser der Durchgangsöffnung größer ist als der Durchmesser der Austrittsöffnung im Diffusor. A further stabilization of the flow conditions is achieved in that each coolant drain a diffuser for bundling the coolant jet is assigned, the Shut-off device is arranged downstream of the diffuser and the diameter of the through opening is larger than the diameter of the outlet opening in the diffuser.
Nach einer weiteren vorteilhaften Ausgestaltung sind die Kühlmittelableitungen als Fallrohre ausgebildet, die im Wasserkasten im wesentlichen vertikal nach oben ragen. Gegenüber den aus der DE-OS 21 07 664 bekannten U-Rohren ergeben sich fertigungstechnische Vorteile, die zu einer wesentlichen Verbilligung der Kühleinrichtung führen. Insgesamt entsteht eine wesentlich kompaktere Baugruppe, wodurch die Gefahr von Schäden durch aufsteigendes oder steckengebliebenes Band deutlich vermindert wird.According to a further advantageous embodiment, the coolant discharge lines are downpipes trained, which project substantially vertically upwards in the water tank. Opposite the from DE-OS 21 07 664 known U-tubes result in manufacturing advantages that lead to a substantial reduction in the cost of the cooling device. Overall, one emerges significantly more compact assembly, eliminating the risk of damage from rising or getting stuck Band is significantly reduced.
Eine Verbesserung der Strömungsverhältnisse ergibt sich weiters dadurch, daß in jede Kühlmittelableitung ein Strömungsstabilisator eingebaut ist. Dieser Strömungsstabilisator ist von mindestens einem Einsatz gebildet, der vorzugsweise aus zwei im rechten Winkel zueinander stehenden, in die Kühlmittelableitung eingesetzten und die Querschnittsfläche der Kühlmittelableitung in Segmente teilenden Leitelementen, vorzugsweise Blechen zusammengesetzt ist.An improvement in the flow conditions also results from the fact that in each Coolant drainage a flow stabilizer is installed. This flow stabilizer is formed by at least one insert, preferably of two at right angles to each other, inserted in the coolant drain and the cross-sectional area of the Coolant drainage in segments dividing guide elements, preferably composed of sheets is.
Weitere Vorteile und Merkmale der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung eines nicht einschränkenden Ausführungsbeispieles, wobei auf die beiliegenden Figuren Bezug genommen wird, die folgendes zeigen:
- Fig. 1
- einen Längsschnitt durch eine erfindungsgemäße Kühlvorrichtung zum Kühlen eines Metallbandes,.
- Fig. 2
- einen Querschnitt durch eine erfindungsgemäße Kühlvorrichtung zum Kühlen eines Metallbandes,
- Fig. 3
- einen Querschnitt durch das Absperrorgan.
- Fig. 1
- a longitudinal section through a cooling device according to the invention for cooling a metal strip ,.
- Fig. 2
- 3 shows a cross section through a cooling device according to the invention for cooling a metal strip,
- Fig. 3
- a cross section through the shut-off device.
Fig. 1 zeigt eine mögliche Ausführungsform der erfindungsgemäßen Kühlvorrichtung zum
Kühlen eines bewegten heißen Metallbandes 1 mittels laminarer Kühlmittelstrahlen. Als
Kühlmittel wird gereinigtes und gegebenenfalls aufbereitetes Wasser verwendet. Das heiße
Metallband 1 wird hierbei auf einem durch eine Rollgangsrolle 2 angedeuteten Transportrollgang
aus einer nicht dargestellten Walzstraße oder einem einzelnen Walzgerüst ausgefordert
und im Abstand unterhalb der Kühlvorrichtung mit einer vorgewählten Transportgeschwindigkeit
transportiert. Die Kühlvorrichtung besteht aus mehreren hintereinander in
Bandlaufrichtung angeordneten Wasserkästen 3, von denen einer in den Fig. 1 und 2
dargestellt ist. Der Wasserkasten 3 weist eine zentrale Kühlmittelzufuhr 4 und eine Vielzahl
von in zwei Reihen angeordneten Kühlmittelableitungen 5 auf (Fig. 2), die als Fallrohre
ausgebildet sind und im Inneren des Wasserkastens 3 vertikal nach oben ragen. Austrittsseitig
schließen an die Kühlmittelableitungen 5 Absperrorgane 6 an, mit denen der Austritt von
Kühlmittel aus allen Kühlmittelableitungen 5 gleichzeitig unterbrochen oder in Gang gesetzt
werden kann. Die Art der Absperrorgane ist weitgehend beliebig wählbar. Einschränkend ist
hierbei nur zu berücksichtigen, daß der das Absperrorgan 6 verlassende Kühlmittelstrahl
laminare Strömungseigenschaften aufweisen muß. Die Absperrorgane 6 können beispielsweise
als Schieber oder Kugelhähne ausgebildet sein. In Fig. 1 und Fig. 2 sind die Absperrorgane 6
durch eine gemeinsame Schaltwelle 7 gekoppelt, die über ein Gestänge 8 mit einem
gemeinsamen Verstellantrieb 9 verbunden ist.Fig. 1 shows a possible embodiment of the cooling device according to the invention for
Cooling a moving
In Fig. 3 ist dieses durch eine durchgehende Schaltwelle 7 und ein mehrteiliges Gehäuse 10,
11, 12 zu einem einzigen kompakten Bauteil verbundene Absperrorgan 6 im Detail dargestellt.
Die Schaltwelle 7 ist im Abstand der Mittelachsen 13, 14 der Kühlmittelableitungen 5 von
Durchgangsöffnungen 15 durchsetzt, die in der Offen-Position der Schaltwelle 7 mit den
Kühlmittelableitungen 5 fluchten. Mit dem Verstellantrieb 9 ist die Schaltwelle 7 in eine um 90°
verschwenkte, den Durchfluß des Kühlmittels sperrende Geschlossen-Position verdrehbar. Die
Schaltwelle 7 ist in einem von zwei Gehäuseschalen 10, 11 gebildeten zweiteiligen Gehäuse
über Radiallager 16, 17 drehbar gelagert und mittels Axiallager 18 in ihrer Positon zu den
Kühlmittelableitungen 5 festgelegt. Im Bereich der die Schaltwelle 7 durchsetzenden
Durchgangsöffnungen 15 sind in die Gehäuseschalen 10, 11 eingesetzte, ringförmige, die
Schaltwelle 7 umgreifende Dichtschalen 19 eingesetzt, die mit den Kühlmittelableitungen 5
und den Durchgangsöffnungen 15 der Schaltwelle 7 fluchtende Durchtrittsöffnungen 20
aufweisen. Die Kühlmittelableitungen 5 münden im Gehäuse 12, wobei jeder Kühlmittelableitung
5 ein in das Gehäuse 12 dichtend eingesetzter Diffusor 21 zur Bündelung der
Kühlmittelstrahlen zugeordnet ist. Die lichte Weite der Durchtrittsöffnung nimmt im Diffusor
21 in Strömungsrichtung linear ab und erweitert sich im Anschluß daran im Absperrorgan 6
sprunghaft, sodaß der Durchmesser der Durchgangsöffnung 15 größer ist als der Durchmesser
der Durchtrittskanal im Diffusor 21.In Fig. 3 this is by a
Zur Stabilisierung der Strömung ist in jeder Kühlmittelableitung 5 ein Strömungsstabilisator 22
eingebaut, der von zwei in rechten Winkel kreuzförmig zueinander stehenden Leitelementen
23, 24, vorzugsweise Blechen gebildet ist, durch die die offene Querschnittsfläche der Kühlmittelableitung
aufeiner begrenzten Wegstrecke in vier gleich große Segmente geteilt wird.A
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0213897A AT406834B (en) | 1997-12-18 | 1997-12-18 | COOLING DEVICE FOR COOLING A HOT MOVING METAL STRIP |
| AT213897 | 1997-12-18 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0924003A2 true EP0924003A2 (en) | 1999-06-23 |
| EP0924003A3 EP0924003A3 (en) | 2000-08-16 |
| EP0924003B1 EP0924003B1 (en) | 2002-10-16 |
Family
ID=3528593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98122254A Expired - Lifetime EP0924003B1 (en) | 1997-12-18 | 1998-11-23 | Cooling device for cooling a moving hot metal strip |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6178768B1 (en) |
| EP (1) | EP0924003B1 (en) |
| AT (2) | AT406834B (en) |
| DE (1) | DE59805962D1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008010062A1 (en) * | 2007-06-22 | 2008-12-24 | Sms Demag Ag | Process for hot rolling and heat treatment of a strip of steel |
| CN102266831B (en) * | 2011-07-08 | 2012-11-07 | 东北大学 | Cooling device capable of forming high-density jet stream and producing method thereof |
| CN108941222A (en) * | 2018-09-28 | 2018-12-07 | 南京先河工程技术有限公司 | A kind of closed cooling water tank device of modularized design and quick change method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51111411A (en) * | 1975-03-27 | 1976-10-01 | Nippon Steel Corp | Variable spray length spray header |
| JPS5554210A (en) * | 1978-10-16 | 1980-04-21 | Ishikawajima Harima Heavy Ind Co Ltd | Cooler for hot rolled material |
| JPS55153615A (en) * | 1979-05-21 | 1980-11-29 | Nippon Steel Corp | Method and apparatus for cooling hot steel sheet |
| JPS61162223A (en) * | 1985-01-10 | 1986-07-22 | Mitsubishi Heavy Ind Ltd | Nozzle header in acceleration cooling device |
| JPS62118914A (en) * | 1985-11-19 | 1987-05-30 | Kawasaki Steel Corp | Cooling device for hot metallic plate |
| EP0247021A2 (en) * | 1986-05-22 | 1987-11-25 | VOEST-ALPINE Eisenbahnsysteme Gesellschaft m.b.H. | Apparatus for the controlled thermal treatment of railroad-switch components |
| JPS6313610A (en) * | 1986-07-03 | 1988-01-20 | Nippon Steel Corp | Cooling method of hot steel plate |
| JPH0760331A (en) * | 1993-08-30 | 1995-03-07 | Nippon Steel Corp | Pipe lamina nozzle |
| JPH08155527A (en) * | 1994-12-09 | 1996-06-18 | Nkk Corp | Cooler for hot rolled metallic strip |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2319309A (en) * | 1940-07-15 | 1943-05-18 | United Eng Foundry Co | Apparatus for rolling metal strip |
| US3025817A (en) * | 1959-03-25 | 1962-03-20 | Western Electric Co | Apparatus for dispensing fluid material |
| BE648850A (en) * | 1963-06-04 | |||
| US3294107A (en) * | 1964-03-02 | 1966-12-27 | Jones & Laughlin Steel Company | Apparatus for cooling hot bodies |
| NL156068B (en) | 1970-02-17 | 1978-03-15 | Koninklijke Hoogovens En Staal | COOLING SYSTEM FOR A MOVING METAL TIRE. |
| SU910266A1 (en) * | 1980-01-04 | 1982-03-07 | Магнитогорский государственный институт по проектированию металлургических заводов | Apparatus for cooling hot rolled strip |
| US4497180A (en) * | 1984-03-29 | 1985-02-05 | National Steel Corporation | Method and apparatus useful in cooling hot strip |
| IT1177873B (en) | 1984-07-04 | 1987-08-26 | Centro Speriment Metallurg | DEVICE FOR COOLING HOT ROLLED FLATS |
| DE3704599A1 (en) * | 1987-02-13 | 1988-08-25 | Schloemann Siemag Ag | Method and apparatus for cooling rolled strip |
| US4899547A (en) * | 1988-12-30 | 1990-02-13 | Even Flow Products, Inc. | Hot strip mill cooling system |
| US4880032A (en) * | 1989-06-20 | 1989-11-14 | Doutt Kingsley A | Multiple port valve |
-
1997
- 1997-12-18 AT AT0213897A patent/AT406834B/en not_active IP Right Cessation
-
1998
- 1998-11-23 DE DE59805962T patent/DE59805962D1/en not_active Expired - Lifetime
- 1998-11-23 AT AT98122254T patent/ATE226118T1/en active
- 1998-11-23 EP EP98122254A patent/EP0924003B1/en not_active Expired - Lifetime
- 1998-12-14 US US09/211,583 patent/US6178768B1/en not_active Expired - Lifetime
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51111411A (en) * | 1975-03-27 | 1976-10-01 | Nippon Steel Corp | Variable spray length spray header |
| JPS5554210A (en) * | 1978-10-16 | 1980-04-21 | Ishikawajima Harima Heavy Ind Co Ltd | Cooler for hot rolled material |
| JPS55153615A (en) * | 1979-05-21 | 1980-11-29 | Nippon Steel Corp | Method and apparatus for cooling hot steel sheet |
| JPS61162223A (en) * | 1985-01-10 | 1986-07-22 | Mitsubishi Heavy Ind Ltd | Nozzle header in acceleration cooling device |
| JPS62118914A (en) * | 1985-11-19 | 1987-05-30 | Kawasaki Steel Corp | Cooling device for hot metallic plate |
| EP0247021A2 (en) * | 1986-05-22 | 1987-11-25 | VOEST-ALPINE Eisenbahnsysteme Gesellschaft m.b.H. | Apparatus for the controlled thermal treatment of railroad-switch components |
| JPS6313610A (en) * | 1986-07-03 | 1988-01-20 | Nippon Steel Corp | Cooling method of hot steel plate |
| JPH0760331A (en) * | 1993-08-30 | 1995-03-07 | Nippon Steel Corp | Pipe lamina nozzle |
| JPH08155527A (en) * | 1994-12-09 | 1996-06-18 | Nkk Corp | Cooler for hot rolled metallic strip |
Non-Patent Citations (8)
| Title |
|---|
| DATABASE WPI Section Ch, Week 198302 Derwent Publications Ltd., London, GB; Class M21, AN 1983-03788K XP002140413 -& SU 910 266 A (MAGN METAL WKS DES), 7. März 1982 (1982-03-07) * |
| PATENT ABSTRACTS OF JAPAN vol. 004, no. 096 (M-020), 11. Juli 1980 (1980-07-11) -& JP 55 054210 A (ISHIKAWAJIMA HARIMA HEAVY IND CO LTD), 21. April 1980 (1980-04-21) * |
| PATENT ABSTRACTS OF JAPAN vol. 005, no. 025 (M-055), 14. Februar 1981 (1981-02-14) -& JP 55 153615 A (NIPPON STEEL CORP), 29. November 1980 (1980-11-29) * |
| PATENT ABSTRACTS OF JAPAN vol. 010, no. 368 (M-543), 9. Dezember 1986 (1986-12-09) -& JP 61 162223 A (MITSUBISHI HEAVY IND LTD), 22. Juli 1986 (1986-07-22) * |
| PATENT ABSTRACTS OF JAPAN vol. 012, no. 208 (M-709), 15. Juni 1988 (1988-06-15) -& JP 63 013610 A (NIPPON STEEL CORP), 20. Januar 1988 (1988-01-20) * |
| PATENT ABSTRACTS OF JAPAN vol. 1995, no. 06, 31. Juli 1995 (1995-07-31) -& JP 07 060331 A (NIPPON STEEL CORP), 7. März 1995 (1995-03-07) * |
| PATENT ABSTRACTS OF JAPAN vol. 1996, no. 10, 31. Oktober 1996 (1996-10-31) -& JP 08 155527 A (NKK CORP), 18. Juni 1996 (1996-06-18) * |
| PATENT ABSTRACTS OF JAPAN vol. 33 (M-638), 4. November 1987 (1987-11-04) -& JP 62 118914 A (KAWASAKI STEEL CORP), 30. Mai 1987 (1987-05-30) * |
Also Published As
| Publication number | Publication date |
|---|---|
| AT406834B (en) | 2000-09-25 |
| EP0924003A3 (en) | 2000-08-16 |
| ATA213897A (en) | 2000-02-15 |
| DE59805962D1 (en) | 2002-11-21 |
| US6178768B1 (en) | 2001-01-30 |
| EP0924003B1 (en) | 2002-10-16 |
| ATE226118T1 (en) | 2002-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3023200C2 (en) | Material web dryer | |
| EP3504363B1 (en) | Oxidation furnace | |
| DE2165049B2 (en) | Method and apparatus for quenching | |
| EP1112951A2 (en) | Device for contactless guiding a material web | |
| EP0924003B1 (en) | Cooling device for cooling a moving hot metal strip | |
| DE4009868A1 (en) | Rolled strip cooler - with spray beams sliding across line of material travel at the cooling roller conveyor for close temp. tolerances | |
| EP3419778B1 (en) | Nozzle row arrangement and nozzle field for installing in a roller gap between two strand guide rollers | |
| DE2547416A1 (en) | DEVICE FOR COOLING TAPE MATERIAL | |
| DE102013214810A1 (en) | Apparatus and method for controlled secondary cooling of a cast metal strand | |
| DE2619271A1 (en) | DEVICE AND METHOD FOR DRAWING WIRE | |
| DE19934557C2 (en) | Device for cooling metal strips or sheets conveyed on a conveyor line | |
| DE2413302C2 (en) | Volume adjustment device for a linear slot outlet for ventilation and / or air conditioning systems | |
| DE2606005C3 (en) | Cooled throttle arrangement for hot gases, especially for downstream connection behind the combustion chamber of a jet engine | |
| DD255201A1 (en) | DEVICE FOR THE HEAT TREATMENT OF TRACKS, IN PARTICULAR TEXTILE TRACKS | |
| DE2809927A1 (en) | DRAIN COOLER | |
| EP0650776A1 (en) | Device for cooling rolled strips | |
| DE2426828A1 (en) | DEVICE FOR COOLING BAR MATERIAL | |
| DE3709936C1 (en) | Cooling device for wire turns | |
| DE102009032341A1 (en) | Cooling device for performing a quenching process during a continuous annealing treatment of a steel strip, comprises cooling liquid spraying nozzles arranged to a cooling liquid-receiving container with the both-side of the steel strips | |
| EP1038600A2 (en) | Arrangement of the multiple-stand finishing block and the following multiple-stand block in single strand wire rolling mills | |
| DE3521182C2 (en) | Chain inlet of a tubular planer chain guide for guiding a coal plane on the conveyor trough of a conveyor, in particular chain scraper conveyor | |
| DE19838283C1 (en) | Calender roller for polishing paper web surfaces has an adjustable bend with a carrier which is rotated by 180o to give selective pressure zone settings against the calender counter rollers | |
| DE19718530A1 (en) | Process and cooling unit for cooling hot rolled rolling stock, in particular hot wide strip | |
| AT88763B (en) | Liquid fuel carburetors. | |
| EP0919297A2 (en) | Device for cooling a roll for rolling a strip, in particular a metal strip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT DE IT |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| 17P | Request for examination filed |
Effective date: 20001117 |
|
| AKX | Designation fees paid |
Free format text: AT DE IT |
|
| 17Q | First examination report despatched |
Effective date: 20011010 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE IT |
|
| REF | Corresponds to: |
Ref document number: 226118 Country of ref document: AT Date of ref document: 20021115 Kind code of ref document: T |
|
| REF | Corresponds to: |
Ref document number: 59805962 Country of ref document: DE Date of ref document: 20021121 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20030717 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20101015 Year of fee payment: 13 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20101125 Year of fee payment: 13 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20120120 Year of fee payment: 14 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 226118 Country of ref document: AT Kind code of ref document: T Effective date: 20121123 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121123 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121123 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59805962 Country of ref document: DE Effective date: 20130601 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130601 |