EP1427549B1 - Spray beam for a hydraulic descaling facility - Google Patents

Spray beam for a hydraulic descaling facility Download PDF

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Publication number
EP1427549B1
EP1427549B1 EP02798705A EP02798705A EP1427549B1 EP 1427549 B1 EP1427549 B1 EP 1427549B1 EP 02798705 A EP02798705 A EP 02798705A EP 02798705 A EP02798705 A EP 02798705A EP 1427549 B1 EP1427549 B1 EP 1427549B1
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EP
European Patent Office
Prior art keywords
spray
spray bar
water
bar according
return valve
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.)
Expired - Lifetime
Application number
EP02798705A
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German (de)
French (fr)
Other versions
EP1427549A1 (en
Inventor
Werner VÖLKEL
Helmut Stötzel
Bernd Niklas
Peter Kniesa
Achim Klein
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SMS Siemag AG
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SMS Demag AG
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Publication date
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Publication of EP1427549A1 publication Critical patent/EP1427549A1/en
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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
    • B21B45/04—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/035—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material to several spraying apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/022—Cleaning travelling work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3006—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being actuated by the pressure of the fluid to be sprayed
    • 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

Definitions

  • the invention relates according to the preamble of claim 1, a spray bar for a hydraulic Entzu mattersstrom with several spray nozzles arranged on its surface (see e.g. DE-A 198 05 377).
  • the scale formed in the furnace, during rolling or during casting, leads to high tool or roller wear and also prevents early detection of casting defects, which reduces the quality of the final product becomes.
  • Scale can be removed chemically, electrochemically or mechanically.
  • An effective mechanical descaling is by means of hydraulic descaling systems possible, with the press water streams primary or secondary scale remove.
  • Known hydraulic Entzu mattersanlagen have a spray bar with a plurality of spray nozzles arranged on its surface.
  • a spray bar is known in which the individual Spray nozzles are switchable via separate spray valves. With such a Spray bars allow the energy and water consumption of the width of the adapt to descaling rolling stock.
  • From DE 198 05 377 A1 is also a spray bar with a in a Row arranged group of spray nozzles, in which the spray nozzles can be individually switched by pressing a common adjustment.
  • the Adjustment is optional in a distribution pipe for the spray water axially slidable, rotatable or in this screwed or unscrewed.
  • the invention is therefore based on the object to provide a spray bar, with a high temperature stability from the beginning to the end of the To ensure good rolling and too fast cooling of the surface avoid it.
  • the object is achieved in that in a spray bar the initially mentioned type of each spray nozzle is associated with a check valve.
  • the unwanted residual amount of water can be particularly effectively stop by the check valves in the supply channels are arranged, preferably immediately before each spray nozzle.
  • the spray nozzles in per se known Way additionally individually switchable.
  • Each check valve expediently has one against the flow direction acting closing spring, so that the check valve against the Spring force of the closing spring opens.
  • the spring force of the closing spring is on the in matched to the spray bar prevailing water pressure. Once the water flow is suppressed, the water pressure drops and the closing springs move the obturator of the check valve in the closed position.
  • the maintenance and / or replacement of the check valves can be simplified when each check valve is switched on in a feed channel Block is arranged, which is detachably connected to the spray bar.
  • FIG. 1 shows the cross section of a spray bar 1 according to the invention several arranged in a row spray nozzles 2.
  • the spray bar 1 points a manifold 3, from the feed channels 4.1 to 4.8 to the spray nozzles Branch off from 2.1 to 2.8.
  • the spray nozzles 2.1. to 2.8 are arranged in a row (see Fig. 2).
  • a supply line 8 is connected, the manifold with a supply 9, 11 for high pressure and low pressure water combines.
  • About an electro-hydraulic control 12 is either the high-pressure water with a pressure of about 200 bar or the Low-pressure water with a pressure of up to 10 bar in the supply line. 8 fed.
  • each check valve 13.1 to 13.8 has one on the obturator 14 acting against the flow direction 15 closing spring 16, which causes the obturator 14 the supply channel 4.1 to 4.8 directly closes when the electro-hydraulic control 12, the water supply from the Supply 9, 11 prevents.
  • the check valves 13 are arranged in blocks 17, the can be screwed into the spray bar 1.
  • the blocks 17 face with the feed channels 4.1 to 4.8 corresponding inputs or outputs, so that the Flow of water through the check valves integrated in the blocks he follows.

Abstract

In order to provide a spray boom with a plurality of spray nozzles for a hydraulic descaling facility with which a high temperature constancy from beginning to the end of the rolling stock is insured and a too rapid cooling of the surface is prevented, it is proposed, in accordance with the invention, to assign a check valve to each spray nozzle.

Description

Die Erfindung betrifft nach dem Oberbegriff von Anspruch 1 einen Spritzbalken für eine hydraulische Entzunderungsanlage mit mehreren auf dessen Oberfläche angeordneten Spritzdüsen (siehe z.B. DE-A 198 05 377).The invention relates according to the preamble of claim 1, a spray bar for a hydraulic Entzunderungsanlage with several spray nozzles arranged on its surface (see e.g. DE-A 198 05 377).

Der im Ofen, während des Walzens oder beim Gießen entstehende Zunder, führt zu hohem Werkzeug- bzw. Walzenverschleiß und verhindert auch die Früherkennung von Gießfehlern, wodurch die Qualität des Endproduktes vermindert wird.The scale formed in the furnace, during rolling or during casting, leads to high tool or roller wear and also prevents early detection of casting defects, which reduces the quality of the final product becomes.

Zunder kann chemischen, elektrochemisch oder mechanisch entfernt werden. Eine wirksame mechanische Entzunderung ist mittels hydraulischen Entzunderungsanlagen möglich, die mit Presswasserstrahlen Primär- oder Sekundärzunder entfernen.Scale can be removed chemically, electrochemically or mechanically. An effective mechanical descaling is by means of hydraulic descaling systems possible, with the press water streams primary or secondary scale remove.

Der unter hohem Druck auf die glühende, verzunderte Stahloberfläche auftreffende, Presswasserstrahl sorgt dabei für die Entfernung des Zunders. Als prozessrelevante Parameter sind der Abkühleffekt und der Brecheffekt zu nennen, deren Eintreten im wesentlichen von der Wassermenge pro Zeiteinheit, dem Wasserdruck vor der Düse und dem Abstand der Düse zu dem entzundernden Material abhängt.The impinging under high pressure on the glowing, scaled steel surface, Press water jet ensures the removal of the scale. As process-relevant Parameters are the cooling effect and the refractive effect, Their occurrence essentially of the amount of water per unit time, the Water pressure in front of the nozzle and the distance of the nozzle to the descaling Material depends.

Bekannte hydraulische Entzunderungsanlagen weisen einen Spritzbalken mit mehreren auf dessen Oberfläche angeordneten Spritzdüsen auf.Known hydraulic Entzunderungsanlagen have a spray bar with a plurality of spray nozzles arranged on its surface.

Aus der DE 3733131 A1 ist ein Spritzbalken bekannt, bei dem die einzelnen Spritzdüsen über separate Spritzventile schaltbar sind. Mit einem derartigen Spritzbalken lässt sich der Energie- und Wasserverbrauch der Breite des zu entzundernden Walzgutes anpassen. From DE 3733131 A1 a spray bar is known in which the individual Spray nozzles are switchable via separate spray valves. With such a Spray bars allow the energy and water consumption of the width of the adapt to descaling rolling stock.

Aus der DE 198 05 377 A1 ist darüber hinaus ein Spritzbalken mit einer in einer Reihe angeordneten Gruppe von Spritzdüsen bekannt, bei dem die Spritzdüsen durch Betätigen eines gemeinsamen Verstellorgans einzeln schaltbar sind. Das Verstellorgan ist wahlweise in einem Verteilerrohr für das Spritzwasser axial verschiebbar, verdrehbar oder in dieses ein- bzw. ausschraubbar.From DE 198 05 377 A1 is also a spray bar with a in a Row arranged group of spray nozzles, in which the spray nozzles can be individually switched by pressing a common adjustment. The Adjustment is optional in a distribution pipe for the spray water axially slidable, rotatable or in this screwed or unscrewed.

Neben der exakten Anpassung an die Breite spielt bei einem immer größer werdenden Bereich von zu walzenden Spezialstählen die Temperaturkonstanz vom Bandanfang bis zum Bandende eine entscheidende Rolle. Schließlich sind teilweise Walzverfahren erforderlich, bei denen nicht bei jedem Durchlauf des Walzgutes durch das Gerüst auch gleichzeitig Wasser aufgespritzt werden darf, da andernfalls die Oberflächen zu schnell abkühlen.In addition to the exact adaptation to the width plays at a bigger and bigger expectant area of special steels to be rolled, the temperature constancy from the beginning of the tape to the end of the tape a decisive role. Finally are Partial rolling process is required in which not every pass of the Rolled material must be sprayed through the framework at the same time water, otherwise the surfaces will cool down too quickly.

Der Erfindung liegt daher die Aufgabe zugrund, einen Spritzbalken zu schaffen, mit dem sich eine hohe Temperaturkonstanz vom Anfang bis zum Ende des Walzgutes sicherstellen und eine zu schnelle Abkühlung von dessen Oberfläche vermeiden lässt.The invention is therefore based on the object to provide a spray bar, with a high temperature stability from the beginning to the end of the To ensure good rolling and too fast cooling of the surface avoid it.

Die Lösung dieser Aufgabe beruht auf dem Gedanken, ein exaktes Zu- und Abschalten des Spritzwassers zu ermöglichen, insbesondere am Bandanfang und am Bandende. Hierzu muss wirksam der Austritt von Restwasser aus den Spritzdüsen unterbunden werden.The solution to this problem is based on the idea of a precise connection and disconnection allow the splash, especially at the beginning of tape and at the end of the tape. This must be effective for the escape of residual water from the Spray nozzles are prevented.

Im einzelnen wird die Aufgabe dadurch gelöst, dass bei einem Spritzbalken der eingangs erwähnten Art jeder Spritzdüse ein Rückschlag-Ventil zugeordnet ist.In particular, the object is achieved in that in a spray bar the initially mentioned type of each spray nozzle is associated with a check valve.

Wenn der Spritzbalken mindestens ein Verteilerrohr zum Zuführen von Wasser zu den Spritzdüsen aufweist und von dem Verteilerrohr Zuführkanäle zu den Spritzdüsen abzweigen, lässt sich die unerwünschte Restwassermenge besonders effektiv unterbinden, indem die Rückschlag-Ventile in den Zuführungskanälen angeordnet sind, vorzugsweise unmittelbar vor jeder Spritzdüse. If the spray bar has at least one manifold for supplying water has to the spray nozzles and from the manifold supply channels to the Branch off spray nozzles, the unwanted residual amount of water can be particularly effectively stop by the check valves in the supply channels are arranged, preferably immediately before each spray nozzle.

Sobald die hydraulische Steuerung der Entzunderungsanlage das Wasser abschaltet, bewirken die Rückschlag-Ventile, dass augenblicklich kein Wasser mehr auf das Walzgut gelangt.As soon as the hydraulic control of the descaling unit shuts off the water, The non-return valves cause no water at the moment get more on the rolling stock.

Um eine Anpassung an die Breite des Walzgutes zu ermöglichen, sind in vorteilhafter Ausgestaltung der Erfindung die Spritzdüsen in an sich bekannter Weise zusätzlich einzeln schaltbar.In order to allow adaptation to the width of the rolling stock, are in an advantageous Embodiment of the invention, the spray nozzles in per se known Way additionally individually switchable.

Jedes Rückschlag-Ventil weist zweckmäßigerweise eine gegen die Durchflussrichtung wirkende Schließfeder auf, so dass das Rückschlag-Ventil gegen die Federkraft der Schließfeder öffnet. Die Federkraft der Schließfeder ist auf den in dem Spritzbalken herrschenden Wasserdruck abgestimmt. Sobald der Wasserfluss unterbunden wird, fällt der Wasserdruck ab und die Schließfedern bewegen das Absperrorgan des Rückschlag-Ventils in die Schließstellung.Each check valve expediently has one against the flow direction acting closing spring, so that the check valve against the Spring force of the closing spring opens. The spring force of the closing spring is on the in matched to the spray bar prevailing water pressure. Once the water flow is suppressed, the water pressure drops and the closing springs move the obturator of the check valve in the closed position.

Die Wartung und/oder der Austausch der Rückschlag-Ventile lässt sich vereinfachen, wenn jedes Rückschlag-Ventil in einem in den Zuführkanal eingeschalteten Block angeordnet ist, der lösbar mit dem Spritzbalken verbunden ist.The maintenance and / or replacement of the check valves can be simplified when each check valve is switched on in a feed channel Block is arranged, which is detachably connected to the spray bar.

Um Fehlfunktionen der Rückschlag-Ventile zu vermeiden, bestehen diese vorteilhafterweise aus einem korrosionsbeständigen Material.In order to avoid malfunction of the check valves, these exist advantageously made of a corrosion-resistant material.

Weitere Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispieles.Further advantages and details of the invention will become apparent from the following Description of an embodiment.

Es zeigen in prinzipieller Darstellung:

Fig. 1
einen erfindungsgemäßen Spritzbalken in Querschnittsdarstellung sowie
Fig. 2
eine schematische Darstellung eines erfindungsgemäßen Spritzbalkens in einer Seitenansicht.
In principle, they show:
Fig. 1
a spray bar according to the invention in cross-sectional view and
Fig. 2
a schematic representation of a spray bar according to the invention in a side view.

Figur 1 zeigt den Querschnitt eines erfindungsgemäßen Spritzbalkens 1 mit mehreren in einer Reihe angeordneten Spritzdüsen 2. Der Spritzbalken 1 weist ein Verteilerrohr 3 auf, von dem Zuführkanäle 4.1 bis 4.8 zu den Spritzdüsen 2.1 bis 2.8 abzweigen. Die Spritzdüsen 2.1. bis 2.8 sind in einer Reihe angeordnet (vgl. Fig. 2).FIG. 1 shows the cross section of a spray bar 1 according to the invention several arranged in a row spray nozzles 2. The spray bar 1 points a manifold 3, from the feed channels 4.1 to 4.8 to the spray nozzles Branch off from 2.1 to 2.8. The spray nozzles 2.1. to 2.8 are arranged in a row (see Fig. 2).

Mittels des Verteilerrohrs 3 wird das Wasser 4 zu den Spritzdüsen 2.1 bis 2.8 geführt und dort auf das zu entzundernde Walzgut 5 gespritzt, das sich in Richtung des in Figur 1 dargestellten Pfeiles 6 bewegt.By means of the manifold 3, the water 4 to the spray nozzles 2.1 to 2.8 led and sprayed there on the walzgut to be descaled 5, located in Direction of the arrow 6 shown in Figure 1 moves.

An einem Anschluss 7 des Verteilerrohrs 3 ist eine Zuführleitung 8 angeschlossen, die das Verteilerrohr mit einer Versorgung 9, 11 für Hochdruck- und Niederdruckwasser verbindet. Über eine elektrohydraulische Steuerung 12 wird wahlweise das Hochdruckwasser mit einem Druck von etwa 200 bar oder das Niederdruckwasser mit einem Druck von bis zu 10 bar in die Zuführleitung 8 eingespeist.At a connection 7 of the distributor tube 3, a supply line 8 is connected, the manifold with a supply 9, 11 for high pressure and low pressure water combines. About an electro-hydraulic control 12 is either the high-pressure water with a pressure of about 200 bar or the Low-pressure water with a pressure of up to 10 bar in the supply line. 8 fed.

Unmittelbar vor jeder Spritzdüse 2.1 bis 2.8 ist ein Rückschlag-Ventil 13.1 bis 13.8 angeordnet. Jedes Rückschlag-Ventil 13.1 bis 13.8 weist eine auf das Absperrorgan 14 gegen die Durchflussrichtung 15 wirkende Schließfeder 16 auf, die bewirkt, dass das Absperrorgan 14 den Zuführkanal 4.1 bis 4.8 unmittelbar schließt, sobald die elektrohydraulische Steuerung 12 die Wasserzufuhr aus der Versorgung 9, 11 unterbindet.Immediately before each spray nozzle 2.1 to 2.8 is a check valve 13.1 to 13.8 arranged. Each check valve 13.1 to 13.8 has one on the obturator 14 acting against the flow direction 15 closing spring 16, which causes the obturator 14 the supply channel 4.1 to 4.8 directly closes when the electro-hydraulic control 12, the water supply from the Supply 9, 11 prevents.

Etwa noch in der Zuführleitung 8 oder den Zuführkanälen 4.1 bis 4.8 vorhandenes Restwasser wird wirksam von den Rückschlag-Ventil 13.1 bis 13.8 zurückgehalten. Da abhängig davon, ob die Entzunderungsanlage mit Niederdruckoder Hochdruckwasser betrieben wird, unterschiedlich starke Schließfedem 16 erforderlich sind, sind die Rückschlag-Ventile 13 in Blöcken 17 angeordnet, die in den Spritzbalken 1 einschraubbar sind. Die Blöcke 17 weisen mit den Zuführkanälen 4.1 bis 4.8 korrespondierende Ein- bzw. Ausgänge auf, sodass der Durchfluss des Wassers durch die in die Blöcke integrierten Rückschlag-Ventile erfolgt.Approximately still in the supply line 8 or the feed channels 4.1 to 4.8 available Residual water is effectively retained by the check valve 13.1 to 13.8. Depending on whether the descaling system with low pressure or High pressure water is operated, different strong closing spring 16 are required, the check valves 13 are arranged in blocks 17, the can be screwed into the spray bar 1. The blocks 17 face with the feed channels 4.1 to 4.8 corresponding inputs or outputs, so that the Flow of water through the check valves integrated in the blocks he follows.

Die lediglich für einen oberhalb des Bandes 5 angeordneten Spritzbalken dargestellte Steuerung kann in gleicher Weise für unterhalb des Bandes angeordnete Steuerungen ausgeführt sein. The illustrated only for one above the belt 5 spray bar Control can be arranged in the same way for below the belt Be executed controls.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

Nr. No. Bezeichnungdescription 1.1. Spritzbalkenspray bars 2.1-2.82.1-2.8 Spritzdüsenspray nozzles 3.Third Verteilerrohrmanifold 4.1-4.84.1-4.8 Zuführkanälesupply channels 5.5th Walzgutrolling 6.6th Bewegungsrichtungmovement direction 7.7th Anschlussconnection 8.8th. Zuführleitungfeed 9.9th Versorgung HochdruckwasserSupply high pressure water 10.10th -- 11.11th Versorgung NiederdruckwasserSupply low-pressure water 12.12th Elektrohydraulische SteuerungElectrohydraulic control 13.1 -13.813.1 -13.8 Rückschlag-VentileNon-return valves 14.14th Absperrorganshutoff 15.15th DurchflussrichtungFlow direction 16.16th Schließfederclosing spring 17.17th Blockblock

Claims (7)

  1. Spray bar for a hydraulic descaling plant with several spray nozzles, wherein water is fed to each spray nozzle through a feed channel, characterised in that a non-return valve (13.1 to 13.n) is associated with each spray nozzle (2.1 to 2.n).
  2. Spray bar according to claim 1, characterised in that the non-return valves (13.1 to 13.n) are arranged in the feed channels (4.1 to 4.n) directly in front of each spray nozzle (2.1 to 2.n).
  3. Spray bar according to one of claims 1 and 2, characterised in that the spray nozzles (2.1 to 2.n) are switchable individually.
  4. Spray bar according to one of claims 1 to 3, characterised in that each non-return valve (13.1 to 13.n) opens against a restoring force, particularly a spring force and/or weight loading.
  5. Spray bar according to claim 4, characterised in that each non-return valve (13.1 to 13.n) has a closing spring (16) acting on the blocking element of the non-return valve against the throughflow direction.
  6. Spray bar according to one of claims 1 to 5, characterised in that each non-return valve (13.1 to 13.n) is arranged in a block (17) which is connected into the feed channel (4) and is detachably connected with the spray bar (1).
  7. Spray bar according to one of claims 1 to 6, characterised in that at least the non-return valves (13.1 to 13.n) consist of a corrosion-resistant material.
EP02798705A 2001-09-19 2002-09-03 Spray beam for a hydraulic descaling facility Expired - Lifetime EP1427549B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10146113 2001-09-19
DE10146113A DE10146113A1 (en) 2001-09-19 2001-09-19 Spray bar for a hydraulic descaling system
PCT/EP2002/009795 WO2003024636A1 (en) 2001-09-19 2002-09-03 Spray boom for a hydraulic descaling facility

Publications (2)

Publication Number Publication Date
EP1427549A1 EP1427549A1 (en) 2004-06-16
EP1427549B1 true EP1427549B1 (en) 2005-02-16

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EP02798705A Expired - Lifetime EP1427549B1 (en) 2001-09-19 2002-09-03 Spray beam for a hydraulic descaling facility

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US (1) US6991186B2 (en)
EP (1) EP1427549B1 (en)
JP (1) JP4459618B2 (en)
KR (1) KR100859316B1 (en)
CN (1) CN1258408C (en)
AT (1) ATE289234T1 (en)
AU (1) AU2002333784B2 (en)
BR (1) BR0209702B1 (en)
CA (1) CA2457036C (en)
CZ (1) CZ297372B6 (en)
DE (2) DE10146113A1 (en)
ES (1) ES2235109T3 (en)
MX (1) MXPA04002625A (en)
RU (1) RU2297895C2 (en)
UA (1) UA79598C2 (en)
WO (1) WO2003024636A1 (en)
ZA (1) ZA200308296B (en)

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US5996200A (en) * 1993-09-09 1999-12-07 Sms Schloemann-Siemag Aktiengesellschaft Descaling device and method
JPH0852386A (en) * 1994-08-10 1996-02-27 Kyoritsu Gokin Seisakusho:Kk Fluid jetting nozzle apparatus
KR200204900Y1 (en) * 1996-12-24 2000-12-01 이구택 Remaining water removing device of annealing after
WO1998037974A1 (en) * 1997-02-28 1998-09-03 Btg International Limited Spray nozzle arrangement
DE19805377A1 (en) 1998-02-11 1999-08-12 Schloemann Siemag Ag Spray beam for hydraulic de-scaling plant
KR19990038769U (en) * 1998-03-31 1999-10-25 이구택 Residual descaling water removal device on hot rolled strip
KR19980068708U (en) * 1998-09-07 1998-12-05 송효순 Check Nozzle
KR200215236Y1 (en) * 2000-09-22 2001-03-02 포항종합제철주식회사 descaling spray apparatus

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DE50202294D1 (en) 2005-03-24
BR0209702A (en) 2004-07-27
UA79598C2 (en) 2007-07-10
JP4459618B2 (en) 2010-04-28
JP2005528216A (en) 2005-09-22
CA2457036C (en) 2010-10-12
RU2297895C2 (en) 2007-04-27
EP1427549A1 (en) 2004-06-16
KR20040028763A (en) 2004-04-03
CN1531469A (en) 2004-09-22
US20040251324A1 (en) 2004-12-16
KR100859316B1 (en) 2008-09-19
CZ20033420A3 (en) 2004-12-15
MXPA04002625A (en) 2004-07-08
WO2003024636A1 (en) 2003-03-27
CA2457036A1 (en) 2003-03-27
AU2002333784B2 (en) 2007-10-25
ZA200308296B (en) 2004-08-25
BR0209702B1 (en) 2010-06-29
US6991186B2 (en) 2006-01-31
CZ297372B6 (en) 2006-11-15
RU2004111671A (en) 2005-05-10
ES2235109T3 (en) 2005-07-01
ATE289234T1 (en) 2005-03-15
CN1258408C (en) 2006-06-07
DE10146113A1 (en) 2003-04-03

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