WO2011061165A2 - Refroidissement et nettoyage de lignes de traitement de bandes - Google Patents

Refroidissement et nettoyage de lignes de traitement de bandes Download PDF

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Publication number
WO2011061165A2
WO2011061165A2 PCT/EP2010/067526 EP2010067526W WO2011061165A2 WO 2011061165 A2 WO2011061165 A2 WO 2011061165A2 EP 2010067526 W EP2010067526 W EP 2010067526W WO 2011061165 A2 WO2011061165 A2 WO 2011061165A2
Authority
WO
WIPO (PCT)
Prior art keywords
gas
liquid mixture
liquid
rolling
cleaning
Prior art date
Application number
PCT/EP2010/067526
Other languages
German (de)
English (en)
Other versions
WO2011061165A3 (fr
Inventor
Arthur Allerdings
Original Assignee
Sms Siemag 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 Siemag Ag filed Critical Sms Siemag Ag
Priority to ES10796303.5T priority Critical patent/ES2538006T3/es
Priority to EP20100796303 priority patent/EP2501498B1/fr
Publication of WO2011061165A2 publication Critical patent/WO2011061165A2/fr
Publication of WO2011061165A3 publication Critical patent/WO2011061165A3/fr

Links

Classifications

    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • 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

Definitions

  • the invention relates to the cooling and cleaning of components and products in belt processing plants or lines, especially in rolling mills and casting plants.
  • rolling plants are known from the prior art in which a liquid is used for cooling and / or for cleaning the rolls, the rolls and the rolling stock.
  • a liquid is usually used for the lubrication of a roll gap.
  • These are usually emulsions of water and oil.
  • Liquids, in particular water have good heat-dissipating properties, which can be further increased by an initial temperature difference relative to the material to be cooled or by the flow speed of the liquids.
  • the cleaning properties are often given in a sufficient degree.
  • the disadvantage is the great moisture or moisture, as a result of this method in belt processing systems, in particular in the roll stand and on the rollers, or present on the rolling stock.
  • an emulsion as such is that it usually has to have a temperature of at least 50 ° C. to 60 ° C., so that it emulsifies sufficiently and has the desired lubricating properties. The necessarily higher temperature of the emulsion is opposed to the cooling. Furthermore, a constant filtration of the emulsion is usually necessary.
  • International Publication WO 2005/1 20739 discloses a method and a rolling stand for cold rolling metallic stock.
  • a nozzle for gaseous media are provided and installed on the other nozzle for liquid treatment media in the rolling stand.
  • individual nozzle rows are directed against the rolling gap or against the rolling stock for lubricating, cleaning and cooling.
  • an M is also used in imalmengen lubrication.
  • oil is applied in small quantities to the rolling stock.
  • the rolling stock usually has a surface roughness in the micrometer range and the amount, as described in the cited publication, is chosen so that just this roughness is compensated by a thin lubricant film.
  • WO 2005/1 20739 proposes to apply cryogenic inert gas, in particular liquid nitrogen.
  • cryogenic gases in particular liquid nitrogen.
  • the use of such cryogenic gases as nitrogen is on a large scale Scale expensive. This is due, among other things, to the fact that they are required, on the one hand, in some considerable quantities, in the operation of such a plant and, in addition, cause increased costs for its storage, transport and occupational safety.
  • the present technical problem is solved by the method and apparatus of the invention.
  • the invention comprises a Method for cooling and for cleaning in casting plants, rolling mills or other strip processing plants, wherein castings, rolling stock or other components of the plants are simultaneously cooled, lubricated and cleaned by a gas-liquid mixture.
  • gas and liquid are simultaneously cleaned and cooled.
  • the disadvantages of pure liquid cooling are overcome, with their biggest disadvantage is that it creates a large amount of moisture or moisture on the rolling or plant components, the quality of the rolling stock and its further processing, or the durability of the plants negative affected.
  • the strip flatness can be improved according to the invention, as can the mechanical intrinsic properties, such as grain sizes or yield strengths.
  • an improvement in the produced strip surface is also possible, such as allowing less roughness and greater cleanliness.
  • both the gas and the liquid of the gas-liquid mixture are co-exuded for cooling and cleaning.
  • both the gas and the liquid are applied from a common location to the rolling stock or to a part of the plant.
  • the gas-liquid mixture is emitted by means of a common nozzle or generally by means of a common outlet.
  • nozzles or outlets may be provided. From there, reaches the gas-liquid mixture flow to the rolling stock or the plant.
  • a mist of liquid and gas which means in particular that there are droplets of the liquid in the gas.
  • air in particular compressed air
  • the cleaning effect and cooling effect can be further improved.
  • water, ethanol, kerosene or oil is used as the liquid of the gas-liquid mixture.
  • kerosene or ethanol increases the cooling and cleaning effect, since these substances evaporate quickly and require phase transformation heat, so that their phase transition from the liquid phase into the gaseous phase for the warm rolling or warm plant components, a significant temperature reduction occurs ,
  • the gas or air of the gas-liquid mixture is set in motion by a fan or a compressor. This can be controlled depending on the specific application, whether the mixture slowly moves in the form of a slowly moving mist on the corresponding material or in the form of a faster moving jet, in particular compressed air jet, meets the object to be cooled and cleaned.
  • the gas-liquid mixture additionally contains solids. These solids or solids, such as ice crystals or solid phases of other gases or liquids, which liquefy and / or evaporate on contact with the rolling stock, can further increase the cleaning effect and / or the cooling effect.
  • the cleaning effect is enhanced by a ballistic effect, that is to say by the impact of the solids or particles on the surface of the rolling stock or of the plant component.
  • the phase transitions from solid to liquid and possibly from liquid to gaseous lead to additional temperature reductions of the material to be cooled due to the necessary evaporation or sublimation heat in the phase transitions.
  • a gas mixture is used as the gas of the gas-liquid mixture and / or a liquid mixture is used as the liquid.
  • a plurality of gases or liquids can also be used simultaneously for cooling and cleaning or can be flowed together, whereby a uniform cooling of the material to be cooled can be achieved, inter alia, by different phase transition temperatures of the liquids used and not the entire liquid at a certain Temperature evaporates.
  • the quality of the tape can be further increased.
  • the gas-liquid mixture optionally comprises one or more of the following components: gaseous nitrogen, liquid nitrogen, air, argon, water, demineralized water, oil, ethanol, kerosene.
  • the method is carried out in a rolling mill for rolling a metal strip, which comprises at least one pair of rollers or rollers between which the metal strip passes, wherein the cooling and the cleaning and possibly also the lubrication through the gas-liquid mixture the inlet side of a roller and / or on the outlet side of a roller, takes place on the inlet side of the roller pair and / or on the outlet side of the roller pair and / or below the metal strip and / or above the metal strip. Due to the good both cleaning and cooling properties of the method according to the invention, it can be found in particular in many places a rolling mill application. The methods known from the prior art do not allow such a flexible application.
  • the gas-liquid mixture is generated by accelerating the gas or the liquid subsequently introduced into a gas stream before it leaves a common outlet or a common nozzle.
  • the invention comprises a rolling system for rolling a metal strip, in particular for carrying out the above-mentioned method, which comprises at least one pair of rolls or rolls. zencru, between which the metal strip passes and which further comprises at least one gas-liquid mixture outlet, which is designed for simultaneous flow of the gas-liquid mixture.
  • a rolling system for rolling a metal strip, in particular for carrying out the above-mentioned method, which comprises at least one pair of rolls or rolls.
  • zencru between which the metal strip passes and which further comprises at least one gas-liquid mixture outlet, which is designed for simultaneous flow of the gas-liquid mixture.
  • the gas-liquid mixture outlet is formed by a nozzle or by an outlet pipe of a spray bar.
  • Figure 1 shows schematically an embodiment of the method according to the invention, wherein at several points of a rolling mill at the same time a gas-liquid mixture is emitted.
  • FIG. 1 shows schematically an embodiment of the present invention.
  • this illustrated embodiment may not be construed restrictive but only the multiple application possibilities of the method according to the invention is intended purely by way of example.
  • outlets 1 to 10 for a gas-liquid mixture for cooling and cleaning a metal strip 17 and / or a rolling mill with rollers 12 to 15 and rollers 16 are shown.
  • the gas-liquid mixture is shown schematically by the black triangles or Sprühfowner.
  • a rolling stand 1 1 with two support rollers 1 2, 15 and intermediate work rolls 13, 14 is shown.
  • the work rolls 13, 14 exercise, as usual, a rolling force on the rolling stock 17, which moves according to the figure 1 from left to right.
  • the left side of the frame 1 1 corresponds to the inlet side of the frame 1 1
  • the right side of the frame 1 1 corresponds to the outlet side.
  • outlets 1 to 10 it is also conceivable to provide an outlet for the gas-liquid mixture only at one of the positions 1 to 10 shown.
  • the outlets 1 to 10 are provided for the gas-liquid mixture at other positions, as they are already known in rolling plants or in casting plants or other belt processing plants.
  • the gas-liquid mixture it is also possible for the gas-liquid mixture to be used for cleaning and cooling as well as possibly for lubrication and surface sealing of processing tools and / or other workpieces of the installations.
  • a gas-liquid mixture is simultaneously exuded by a plurality of said outlets. Regardless, however, it is preferably the case that the gas-liquid mixture is emitted from at least one outlet together.
  • An outlet may be, for example, a nozzle or an outlet opening of a spray bar.
  • the gas-liquid mixture can also be sprinkled or sprayed simultaneously from a row of nozzles, which preferably extends parallel to a roll axis or extends perpendicular to the rolling or casting direction.
  • the gas-liquid mixture may preferably be composed as follows:
  • air in particular air, optionally also under pressure, that is compressed air, may be used.
  • the air can be moved by a fan or a compressor.
  • the gas-liquid mixture additionally contains solids or solids. These may be natural solids of the air, such as ice crystals or may be formed by other added solids.
  • a gas mixture can be used as the gas of the gas-liquid mixture and / or a liquid mixture can be used instead of a single liquid of the gas-liquid mixture.
  • gases and liquids or components or substances used can be, for example, gaseous nitrogen, liquid nitrogen, argon or demineralized water.
  • gaseous nitrogen, liquid nitrogen, argon or demineralized water can be, for example, gaseous nitrogen, liquid nitrogen, argon or demineralized water.
  • FIG. 7 gas-liquid mixture outlet 8 directed outwards of the rolling stock on the work roll and the supporting roll 8: gas-liquid mixture outlet directed downstream of the rolling stock on the work roll and the supporting roll

Abstract

L'invention concerne un procédé de refroidissement et de nettoyage destiné à être appliqué dans des installations de coulée, de laminage ou dans d'autres installations de traitement de bandes, procédé selon lequel les produits à couler/les produits coulés, la matière à laminer/la matière laminée (17) ou d'autres éléments constitutifs des installations (11, 12, 13, 14, 15, 16) sont simultanément refroidis et nettoyés par l'intermédiaire d'un mélange gaz-liquide et éventuellement lubrifiés et soumis à un traitement de surface. L'invention concerne également une installation de laminage et/ou une ligne de traitement correspondantes. L'invention permet d'éviter les inconvénients d'un nettoyage effectué uniquement avec du gaz et ceux d'un refroidissement et d'un nettoyage effectués avec des émulsions liquides.
PCT/EP2010/067526 2009-11-21 2010-11-16 Refroidissement et nettoyage de lignes de traitement de bandes WO2011061165A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES10796303.5T ES2538006T3 (es) 2009-11-21 2010-11-16 Refrigeración y limpieza de líneas de procesamiento de bandas
EP20100796303 EP2501498B1 (fr) 2009-11-21 2010-11-16 Refroidissement et nettoyage de lignes de traitement de bandes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910054205 DE102009054205A1 (de) 2009-11-21 2009-11-21 Kühlung und Reinigung in Bandprozesslinien
DE102009054205.1 2009-11-21

Publications (2)

Publication Number Publication Date
WO2011061165A2 true WO2011061165A2 (fr) 2011-05-26
WO2011061165A3 WO2011061165A3 (fr) 2012-06-14

Family

ID=43877262

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/067526 WO2011061165A2 (fr) 2009-11-21 2010-11-16 Refroidissement et nettoyage de lignes de traitement de bandes

Country Status (4)

Country Link
EP (1) EP2501498B1 (fr)
DE (1) DE102009054205A1 (fr)
ES (1) ES2538006T3 (fr)
WO (1) WO2011061165A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011104455B4 (de) 2011-06-08 2013-01-03 Schletter Gmbh Baugruppe eines Ständers für PV-Module, Halteaufsatz und Verfahren zum Montieren der Baugruppe
DE102011104452A1 (de) 2011-06-08 2012-12-13 Schletter Gmbh Ständer für PV-Module
CN102284518A (zh) * 2011-08-18 2011-12-21 中冶南方工程技术有限公司 用于冷轧湿平整生产中的水雾喷射装置
GB2495512B (en) * 2011-10-12 2013-12-11 Siemens Plc Rolling apparatus
CN104438382B (zh) * 2014-11-25 2016-08-24 山东钢铁股份有限公司 一种提高冷轧带钢表面清洁度的方法及其专用设备
EP3461566A1 (fr) * 2017-10-02 2019-04-03 Primetals Technologies Austria GmbH Laminage d'un laminé

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344308A (en) * 1979-07-25 1982-08-17 Nihon Parkerizing Co., Ltd. Method for cold rolling and cleaning steel plates
US20020162374A1 (en) * 2001-05-01 2002-11-07 Guido Plicht Process and roll stand for cold rolling of a metal strip
WO2003002277A1 (fr) * 2001-06-28 2003-01-09 Sms Demag Aktiengesellschaft Procede et dispositif de refroidisement et de lubrification de cylindres d'une cage de laminoir
WO2003051550A1 (fr) * 2001-12-14 2003-06-26 Industrial Automation Services Pty Ltd Appareil et procede de commande de traitement
WO2005120739A1 (fr) * 2004-06-09 2005-12-22 Sms Demag Ag Procede et cage de laminoir pour laminer a froid une matiere metallique a laminer, en particulier un feuillard, ladite cage etant pourvue de buses destinees a pulveriser des agents de traitement gazeux ou liquides
WO2008059321A1 (fr) * 2006-11-15 2008-05-22 Tenova S.P.A. Procédé et dispositif pour le traitement de nettoyage de bandes métalliques, dépouilles et/ou poignards
WO2009029659A1 (fr) * 2007-08-28 2009-03-05 Air Products And Chemicals, Inc. Écoulement de cryogène sur des surfaces de pièces à travailler dans un laminoir à froid

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344308A (en) * 1979-07-25 1982-08-17 Nihon Parkerizing Co., Ltd. Method for cold rolling and cleaning steel plates
US20020162374A1 (en) * 2001-05-01 2002-11-07 Guido Plicht Process and roll stand for cold rolling of a metal strip
WO2003002277A1 (fr) * 2001-06-28 2003-01-09 Sms Demag Aktiengesellschaft Procede et dispositif de refroidisement et de lubrification de cylindres d'une cage de laminoir
WO2003051550A1 (fr) * 2001-12-14 2003-06-26 Industrial Automation Services Pty Ltd Appareil et procede de commande de traitement
WO2005120739A1 (fr) * 2004-06-09 2005-12-22 Sms Demag Ag Procede et cage de laminoir pour laminer a froid une matiere metallique a laminer, en particulier un feuillard, ladite cage etant pourvue de buses destinees a pulveriser des agents de traitement gazeux ou liquides
WO2008059321A1 (fr) * 2006-11-15 2008-05-22 Tenova S.P.A. Procédé et dispositif pour le traitement de nettoyage de bandes métalliques, dépouilles et/ou poignards
WO2009029659A1 (fr) * 2007-08-28 2009-03-05 Air Products And Chemicals, Inc. Écoulement de cryogène sur des surfaces de pièces à travailler dans un laminoir à froid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2501498A2 *

Also Published As

Publication number Publication date
EP2501498B1 (fr) 2015-05-20
DE102009054205A1 (de) 2011-05-26
WO2011061165A3 (fr) 2012-06-14
EP2501498A2 (fr) 2012-09-26
ES2538006T3 (es) 2015-06-16

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