EP1157755B1 - Düsenbalken für die Kühlung oder Entzunderung von metallischem Stranggut, insbesondere von Walzgut - Google Patents

Düsenbalken für die Kühlung oder Entzunderung von metallischem Stranggut, insbesondere von Walzgut Download PDF

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Publication number
EP1157755B1
EP1157755B1 EP01112443A EP01112443A EP1157755B1 EP 1157755 B1 EP1157755 B1 EP 1157755B1 EP 01112443 A EP01112443 A EP 01112443A EP 01112443 A EP01112443 A EP 01112443A EP 1157755 B1 EP1157755 B1 EP 1157755B1
Authority
EP
European Patent Office
Prior art keywords
cooling liquid
spray bar
closure body
bar according
device cooling
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
EP01112443A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1157755A2 (de
EP1157755A3 (de
Inventor
Dankfried Klempel
Heinz-Peter Schmitz
Dirk Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1157755A2 publication Critical patent/EP1157755A2/de
Publication of EP1157755A3 publication Critical patent/EP1157755A3/de
Application granted granted Critical
Publication of EP1157755B1 publication Critical patent/EP1157755B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21B45/02—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically

Definitions

  • the invention relates to a nozzle bar for the descaling or cooling of Metallic extruded material, in particular of rolling stock, each with an inlet for the product treatment liquid and an additional feed for a device coolant and a drain for the device coolant and a switching mechanism associated with this sequence for opening or closing the Device coolant flow.
  • two separate chambers necessary or at least one switching element with separate Energy supply, e.g. with electrical control, and an associated Signal conditioning.
  • the cooling water is usually required to cool the cooling device itself Operation "against excessive heating and resulting damage protect.
  • the mentioned Switching device With appropriate control command necessary to the for the Cooling device off or on necessary cooling water.
  • the invention is based on the object for the temporal portion of the disconnected Product treatment liquid in continuous strand product necessary cooling of the treatment, e.g. the cooling device itself, uphold.
  • the stated object is according to the invention in the nozzle bar described at the beginning solved in that the switching device via a the operating state Controlling Device Coolant Pressure is automatically switchable. As a result, due to a change in this operating condition pressure in the treatment liquid automatically closes the treatment liquid outlet or later reopened. The device itself is in spite of heat radiation of the product in each stage of operation. It becomes simplistic Construction of only one chamber for the treatment liquid went out.
  • Another improvement of the invention provides that in the area of the device coolant flow, arranged in a housing, a closure body in the flow path by means of device cooling liquid can be acted upon. Thereby is in the narrowest area of the nozzle beam, the switching element with the designated Properties created. At the same time is a compactness of the nozzle beam given, so that an additional room is not needed.
  • the closure body consists of a means of guide sections at both ends mounted in the housing cone body or spherical body. Either The cone body as well as the spherical body can easily from the liquid to be flowed around.
  • the closure body is against the force of a compression spring, Coaxially surrounds a front guide shaft, adjustable. This will the closure body kept open due to a restoring force against closing.
  • the restoring force of the closure body can also from its own weight (alone or in combination with the compression spring) are derived.
  • a further embodiment provides that in the direction of the flow path of the Device coolant to the front guide section of a Liquid space is surrounded, in front of and behind the closure body, a coolant drain pipe connected.
  • a coolant drain pipe connected in the case of connected strand cooling or descaling is by increasing the fluid pressure in the nozzle bar and the associated increase in the flow rate generates a pressure drop in the region of the flow around the closure body, which overcomes the restoring force and the closure body in the closed position suppressed.
  • a secure closure is thereby effected that for the closure body as a cone body in the housing at the entrance of the device-liquid-space a seat ring is arranged with locking edge.
  • the seat ring with closing edge may be cylindrical or conical.
  • one Ball or spherical cap as a closure body is given the same function.
  • the arrangement of the treatment liquid drain is in the geodesic height its highest level so that the lock body and the free one Drain below the geodetic level of the product treatment liquid and whose overflow pipes is arranged. This leaves the nozzle bar in the lower one Area filled with the device coolant, while a higher located overflow for the product treatment fluid is not reached and thereby the strand with switched off supply of the product treatment liquid is not wetted by the device coolant.
  • the device cooling fluid is in a defined amount, the size the cooling liquid flow, the required amount of coolant, the assembly and the function of the closure body corresponds, via an upstream Adjusting and / or a check valve supplied. This makes it possible for the Device cooling fluid from the product treatment fluid supply to be removed, bypassing the closed feed line of the product treatment liquid. In this arrangement, no check valve is necessary. If the device coolant from the separate supply with less Pressure is usually applied to the check valve when the operating medium is switched on, the inflow into the device coolant supply system to lock.
  • the nozzle bar 1 consists of a flood pipe 2 and has a Device Coolant Drain 4.
  • the nozzles of the nozzle beam 1 can from nozzle tubes, as drawn, from slots or other openings consist.
  • the product treatment liquid feed 3 for the product treatment liquid 9a is visible in FIGS. 2 and 3.
  • a device cooling liquid switching device 5 9b arranged at the side of the device coolant drain 4 .
  • the switching element 5 is on a the operating condition controlling pressure switched. For the embodiment is provided that the switching element 5 is switched off via an increased pressure.
  • a housing 6 is tightly flanged, in which a closure body 7 is acted upon in the flow path 8 by means of cooling liquid 9b becomes.
  • the closure body 7 has a central cone body 10 and At both ends, guide sections 10a and 10b are connected.
  • the guide sections 10a and 10b are slidably mounted in the housing 6.
  • the cone body 10 can also be used a spherical body or a spherical cap.
  • the closure body 7 is against the force of a compression spring 11, on the front Guide portion 10 a is pushed against a bore paragraph in Housing 6 and against a shoulder of the front guide portion 10 a fitting, unemployable.
  • the compression spring 11 or in combination can also Restoring force of the vertically arranged closure body 7 from its own weight be derived.
  • coolant 9b is in front of the closure body 7 around the front guide portion 10a Coolant space 12 formed, to which a cooling liquid discharge pipe 13 is connected is.
  • the flow path 8 leads between one for the closure body 7 as a cone body 10 in the housing 6 at the outlet of the cooling liquid space 12 inserted (cone) seat ring 14 with locking edge and the cone body 10 through.
  • the product treatment liquid feed 3 and a device coolant inlet are 18 shown.
  • the closure body 7 (see FIG. 1) is below the geodesic level 15 and under overflow pipes 16 for the Product treatment liquid 9a arranged.
  • the device coolant inlet 18 of the product treatment liquid inlet 3 provides a defined amount, the size of the device coolant drain 4, the amount of coolant required (per unit of time), the unit and the function of the closure body 7 corresponds, wherein the Amount of device cooling liquid 9b via an upstream adjustment 17, e.g. a throttle 17a is supplied in a bypass.
  • the device coolant Figure 9b is a separate device coolant supply 20 fed with low pressure. It does not matter which one Circuit, the device cooling liquid 9b is removed.
  • the device cooling liquid 9b is removed.
  • For inflammation In the warm area is usually simple water at higher pressures (For example, 100-200 bar, to 400 bar) used in an appropriate amount.
  • This is usually the check valve 19 is provided in order to switched product treatment liquid 9a, the return flow into the device coolant supply 20 to lock.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Nozzles (AREA)
  • Metal Rolling (AREA)
EP01112443A 2000-05-24 2001-05-22 Düsenbalken für die Kühlung oder Entzunderung von metallischem Stranggut, insbesondere von Walzgut Expired - Lifetime EP1157755B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10025639 2000-05-24
DE10025639A DE10025639A1 (de) 2000-05-24 2000-05-24 Düsenbalken für die Kühlung oder Entzunderung von metallischem Stranggut, insbesondere von Walzgut

Publications (3)

Publication Number Publication Date
EP1157755A2 EP1157755A2 (de) 2001-11-28
EP1157755A3 EP1157755A3 (de) 2004-02-04
EP1157755B1 true EP1157755B1 (de) 2005-07-13

Family

ID=7643336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01112443A Expired - Lifetime EP1157755B1 (de) 2000-05-24 2001-05-22 Düsenbalken für die Kühlung oder Entzunderung von metallischem Stranggut, insbesondere von Walzgut

Country Status (6)

Country Link
US (1) US6698667B2 (ru)
EP (1) EP1157755B1 (ru)
JP (1) JP2002011513A (ru)
AT (1) ATE299406T1 (ru)
DE (2) DE10025639A1 (ru)
RU (1) RU2264875C2 (ru)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1938911A1 (en) * 2006-12-27 2008-07-02 VAI Industries (UK) Ltd. Apparatus and method for controlled cooling
DE102007017769B4 (de) * 2007-04-16 2014-09-04 Continental Automotive Gmbh Waschflüssigkeitspumpe
JP5130970B2 (ja) * 2008-03-18 2013-01-30 Ｊｆｅスチール株式会社 鋼材の冷却装置および冷却方法
JP2010214433A (ja) * 2009-03-18 2010-09-30 Jfe Steel Corp 鋼材の冷却装置および冷却方法
JP5332772B2 (ja) * 2009-03-18 2013-11-06 Ｊｆｅスチール株式会社 鋼材の冷却装置および冷却方法
WO2011046466A1 (ru) * 2009-10-14 2011-04-21 Zamaleev Firdaus Usmanovich Труба стальная с защитным покрытием
KR101726763B1 (ko) * 2015-12-17 2017-04-13 주식회사 포스코 냉각장치
TWI648573B (zh) * 2017-09-11 2019-01-21 友達光電股份有限公司 陣列基板
DE102018202843A1 (de) 2018-02-26 2019-08-29 Sms Group Gmbh Kühlvorrichtung zum Kühlen eines zu kühlenden Guts

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE790448A (fr) * 1971-01-13 1973-02-15 Southwire Co Dispositif de refroidissement pour train de
JPS5347012A (en) * 1976-10-13 1978-04-27 Hitachi Ltd Nozzle header for pressurized-water descaling device
US4233830A (en) * 1978-11-14 1980-11-18 Secim Method for the continuous production of a bright copper rod by the rolling of stock obtained from a continuous casting apparatus
DE3433712C1 (de) * 1984-09-14 1986-05-28 Mannesmann AG, 4000 Düsseldorf Vorrichtung zum Abführen von Kühlwasser
US5001915A (en) * 1986-09-22 1991-03-26 David T. Blazevic Method for improving hot strip mill processing
US5263504A (en) * 1990-12-28 1993-11-23 Carolina Equipment And Supply Company, Inc. Apparatus and method for cleaning with a focused fluid stream
US5460023A (en) * 1991-09-13 1995-10-24 International Rolling Mill Consultants Inc. Roll surface restoration system and method
JP3274536B2 (ja) * 1993-05-06 2002-04-15 川崎製鉄株式会社 デスケーリング装置
US5675880A (en) * 1996-08-29 1997-10-14 Bethlehem Steel Corporation Descaling system for use in the manufacture of steel and corresponding method

Also Published As

Publication number Publication date
ATE299406T1 (de) 2005-07-15
US20020011528A1 (en) 2002-01-31
DE10025639A1 (de) 2001-11-29
RU2264875C2 (ru) 2005-11-27
EP1157755A2 (de) 2001-11-28
EP1157755A3 (de) 2004-02-04
JP2002011513A (ja) 2002-01-15
US6698667B2 (en) 2004-03-02
DE50106718D1 (de) 2005-08-18

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