EP2283165B1 - Dispositif de soufflage de gaz sur une face d'un materiau en bande en defilement - Google Patents

Dispositif de soufflage de gaz sur une face d'un materiau en bande en defilement Download PDF

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Publication number
EP2283165B1
EP2283165B1 EP09745921.8A EP09745921A EP2283165B1 EP 2283165 B1 EP2283165 B1 EP 2283165B1 EP 09745921 A EP09745921 A EP 09745921A EP 2283165 B1 EP2283165 B1 EP 2283165B1
Authority
EP
European Patent Office
Prior art keywords
gas
movable shutter
wall
blowing
shutter member
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.)
Active
Application number
EP09745921.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2283165A1 (fr
Inventor
Stéphane Langevin
Patrick Dubois
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.)
John Cockerill SA
Original Assignee
Cockerill Maintenance and Ingenierie SA
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 Cockerill Maintenance and Ingenierie SA filed Critical Cockerill Maintenance and Ingenierie SA
Publication of EP2283165A1 publication Critical patent/EP2283165A1/fr
Application granted granted Critical
Publication of EP2283165B1 publication Critical patent/EP2283165B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/613—Gases; Liquefied or solidified normally gaseous material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling
    • C21D9/5735—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/007—Treating a particular portion of the web or plate, e.g. the edge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/108—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials using one or more blowing devices, e.g. nozzle bar, the effective area of which is adjustable to the width of the material
    • 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
    • B21B45/004—Heating the product
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/63—Continuous furnaces for strip or wire the strip being supported by a cushion of gas
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8376—Combined
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems

Definitions

  • the present invention relates to a device for blowing gas onto a surface of a moving web material.
  • the invention relates very particularly to lines for treating steel or aluminum strips using at least one gas jet cooling chamber, or a gas jet cooling section, such as heat treatment lines, in particular. particularly continuous annealing lines, or such as coating lines, in particular galvanizing lines.
  • the treatment lines concerned may also require a gas blowing for preheating strips, as is found for chromating with annealing of metal strips, during which a deposited protective varnish is dried by blowing hot air.
  • the invention is however not limited to the aforementioned field of use, and relates more generally to the blowing of gas onto a surface of a moving strip material which may be a non-metallic material, for example paper, or of plastic, for a drying, cooling or coating treatment as the case may be.
  • a moving strip material which may be a non-metallic material, for example paper, or of plastic, for a drying, cooling or coating treatment as the case may be.
  • the aforementioned system with valves and compartmentalization was also used to generate different blowing forces over the width of the moving strip, in order to be able to tilt the latter in order to obtain more or less improved stability.
  • a differentiation of the blowing flow rates has also been used to generate high blowing forces at the ends and low forces at the center of the moving web, which makes it possible to decurl said web and to prevent it from falling. touches the boxes or the air nozzles.
  • valve and compartmentalization system to adjust the transverse homogenization of the moving strip by blowing more or less strongly on the strip.
  • the adjustment is carried out manually, and controlled by a pyrometric scanner.
  • the document JP-61 257429 A describes a set of two blowing boxes between which passes a steel strip to be cooled.
  • the active face of each box has transverse slots for blowing a cooling gas, and this face is internally equipped with two side flaps pivoting plane on plane on it, so as to vary the width of the slots in the direction of travel of the strip, this width decreasing in the direction of travel of said strip so as to exert progressively more vigorous cooling in the central part of the strip.
  • the two pivoting side flaps are integral with the active face of the box, and that the edges of said flaps are always oblique with reference to the direction of travel of the strip. It is therefore not an adjustment according to the width of the material, but only to vary the width of the cooling zone for a strip of given width.
  • the (single) cooling box is equipped with spray nozzles whose inlets are selectively fed by means of two transversely movable pistons.
  • the document JP-58 185 717 A illustrates a system of screens ( figure 5 ) making it possible to vary the width of the cooling zone on either side of an orthogonal median plane of the strip, but in association with tilting boxes.
  • the document JP-63 077564 A illustrates a complex system of transversely movable spools making it possible to selectively feed the fluid injection nozzles to take account of the width of the strip concerned.
  • the document DE-31 46 656 A finally describes a cooling tube with movable covers making it possible to take account of the strip concerned.
  • the invention aims to provide a gas blowing device that does not have the drawbacks and / or limitations of the prior systems mentioned above, and in particular well suited to transitions modifying the widths of the moving bands which are to be processed, while optimizing both the thermal and aerolic aspects of blowing, and this for an installation cost that remains reasonable.
  • the invention also aims to provide a blowing device providing more flexibility in terms of gas flow rates, avoiding excessive supply with regard to the actual blowing gas requirements.
  • a device for blowing gas on one face of a moving strip material comprising at least one hollow box, one wall of which facing the relevant face of the strip material is equipped with a plurality of blowing orifices making it possible to direct gas towards said face of the strip material, the hollow box being further equipped laterally, at least on one side thereof with reference to a median plane perpendicular to the plane of the strip, of a movable closure member having the function of selectively obscuring some of the blowing orifices in order to adapt the width of the blowing zone to the width of the strip material concerned, the guiding of said member movable shutter in its selective occultation movement comprising at least a first edge of the movable shutter member bearing against an element integral with the inner surface of the wall equipped with blast holes flage, and at least a second edge of the movable closure member which bears against an element integral with the side wall of the hollow box, in which a distance separating the inner surface of the
  • the movable closure member can be moved ad libitum according to requirements, and in particular to different bandwidths.
  • strip widths generally range from 400mm to 2200mm, but only 30% to 40% of an annual order book is for strips of maximum length.
  • rate actually required is lower for a lower bandwidth, keeping the same rate with a narrower band allows an increase in the running speed of the tape, which therefore further improves the capacities. of production.
  • the movable closure member is a rigid flap in its plane.
  • the movable closure member may be a deformable flap which bears against the interior surface of the wall equipped with blowing openings and against the interior surface of a side wall of the hollow box.
  • the shutter constituting the movable closure member is guided in its movement by slides in which rollers coupled to said shutter circulate.
  • closure member In general, provision can be made for the closure member to be moved from one position to another by actuation of mechanical and / or electrical and / or hydraulic means, such as jacks.
  • the hollow box will be equipped, on both sides thereof, with a movable closure member.
  • the two hollow boxes are each equipped with at least one movable closure member facing one another.
  • the gas blowing device comprises a plurality of movable shutter members whose individual movement is controlled by a common central unit.
  • blowing device in which the blowing orifices are formed by tubular nozzles projecting at least in part outside the relevant wall of the hollow box, in which case the movable closure member will be arranged to selectively obscure the entry of certain tubular nozzles.
  • blowing device in which the blowing orifices are formed by bores in the relevant wall of the hollow box, in which case the closure member will be arranged to selectively conceal the inlet or the outlet. output of certain holes.
  • FIG. 1 and 2 which do not form part of the invention, illustrate part of a blowing installation including a gas blowing device denoted 10 in accordance with the invention.
  • the device 10 comprises, on either side of a strip material denoted 15, the direction of travel being symbolized by the arrow 100, a hollow box 20, the strip material 15 circulating between the two boxes 20 in look.
  • Each hollow box 20, the interior space of which is denoted 28, comprises a rear wall 21 to which is connected a blast gas inlet pipe 12, the blast gas supply being symbolized by an arrow 101, a wall front or active 22 opposite the wall 21, which for its part faces the relevant face of the strip material 15, as well as two side walls 23.
  • each hollow box is equipped a plurality of blowing orifices making it possible to direct gas towards the face concerned of the strip material 15.
  • the blowing orifices are formed by tubular nozzles 30 projecting at least in part from the wall 22, but one could alternatively provide that the blowing orifices are formed by holes in said wall 22 (variant not shown).
  • each hollow box here has a profile which is variable in a direction D transverse to the direction 100 of travel of the strip material 15, symmetrically with respect to a median plane Q perpendicular to the plane of the strip 15, this profile being here arranged in a V-shaped dihedron, the edge of which is denoted 24.
  • each hollow box 20 is also fitted laterally, at least on one side thereof (here on both sides) with reference to the median plane Q which is perpendicular to the plane of the strip.
  • a movable closure member having the function of selectively obscuring some of the blowing openings, in this case here the entry of some of the tubular nozzles 30, in order to adapt the width of the blowing zone to the width of the strip material concerned 15, said movable member having an edge adjacent to the inner surface 25 of the wall 22 provided with blowing holes, and an edge adjacent to a side wall 23 of the hollow box 20.
  • the edges of the movable closure member are and remain essentially parallel to the direction of travel of the strip, which guarantees perfect adaptation to different strip widths.
  • a movable closure member produced in the form of a flap 50 which is rigid in its plane.
  • the flap 50 is movable in translation in a lateral direction, as shown diagrammatically on the figure 2 by arrows 105, in the vicinity of and parallel to the inner surface 25 of the wall 22 equipped with tubular nozzles 30.
  • the movable shutter 50 can be distinguished, one edge of which 54, which is inside the hollow box 20, is adjacent to the surface 25 of the wall 22 equipped with blowing orifices, and of which the 'other edge 55, which passes through an associated slot 23' of the side wall 23 of said box, is therefore adjacent to said side wall, the other end 55 'of said flap then remaining outside said box.
  • these means denoted 51 being here produced in the form of a rack and pinion system, with a rack 52 fixed to the movable shutter.
  • the flap 50 is in the maximum release position, so that the nozzles 30.1 to 30.5 are all concerned with the blowing gas. This position corresponds to a maximum bandwidth.
  • the arrow 105A reminds you that the shutter is in the maximum release open position.
  • FIG 7B there is illustrated a position of maximum retraction of the shutter 50, position in which the outermost nozzles 30.1 to 30.4 have their inlet 26 which is concealed, while the inlet of the nozzle 30.5 remains unobstructed, so that only the nozzle 30.5, and naturally the following nozzles going towards the median plane Q, are concerned by the blowing.
  • This position corresponds to the narrowest bandwidth.
  • the arrow 105B is there to remind you of the maximum concealment position of the movable shutter 50.
  • the figures 3 and 4 illustrate the rigid flap denoted 60 has a somewhat different movement compared to the previous embodiment. Indeed, the shutter 60 is pivoting, having an edge 64 adjacent to the interior surface 25 of the wall 22 equipped with tubular nozzles 30, and an edge 65 adjacent to the interior surface of a side wall 23 of the hollow box 20.
  • the figures 5 and 6 illustrate the movable shutter denoted 70 is a deformable shutter, for example articulated in the manner of a blind, which shutter bears against the interior surface 25 of the wall 22 equipped with side nozzles 30 and against the interior surface of a wall side 23 of the hollow box 20.
  • one edge 74 of the flap 70 remains adjacent to the inner surface 25 while the other edge 75 remains adjacent to the side wall 23.
  • each movable closure member 50, 60, 70 is and remains parallel to the direction 100 of travel of the strip.
  • blowing orifices can be arranged not in the form of tubular nozzles, but in the form of holes in the relevant wall of the hollow box (variant not shown), in which case the movable closure member will be arranged to selectively hide the 'inlet (member inside the box) or outlet (member outside the box) of certain bores, with the same adaptation effects as those described above for tubular nozzles.
EP09745921.8A 2008-05-13 2009-05-07 Dispositif de soufflage de gaz sur une face d'un materiau en bande en defilement Active EP2283165B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0802579A FR2931165B1 (fr) 2008-05-13 2008-05-13 Dispositif de soufflage de gaz sur une face d'un materiau en bande en defilement
PCT/FR2009/000537 WO2009138602A1 (fr) 2008-05-13 2009-05-07 Dispositif de soufflage de gaz sur une face d'un materiau en bande en defilement

Publications (2)

Publication Number Publication Date
EP2283165A1 EP2283165A1 (fr) 2011-02-16
EP2283165B1 true EP2283165B1 (fr) 2020-07-29

Family

ID=40107427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09745921.8A Active EP2283165B1 (fr) 2008-05-13 2009-05-07 Dispositif de soufflage de gaz sur une face d'un materiau en bande en defilement

Country Status (7)

Country Link
US (2) US8771588B2 (ru)
EP (1) EP2283165B1 (ru)
CN (1) CN102027142B (ru)
ES (1) ES2827287T3 (ru)
FR (1) FR2931165B1 (ru)
RU (1) RU2467074C2 (ru)
WO (1) WO2009138602A1 (ru)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2931165B1 (fr) * 2008-05-13 2010-11-26 Cmi Thermline Services Dispositif de soufflage de gaz sur une face d'un materiau en bande en defilement
US8882400B2 (en) * 2010-10-29 2014-11-11 General Electric Company Solids feeder discharge port
CN102950881B (zh) * 2011-08-31 2016-04-27 威海印刷机械有限公司 一种表格印刷机的防蹭脏装置
ES2623037T3 (es) 2013-07-16 2017-07-10 Cockerill Maintenance & Ingéniérie S.A. Sistema de pre-refrigeración con regulación interna piloto
JP6283540B2 (ja) * 2014-03-12 2018-02-21 株式会社Ｓｃｒｅｅｎホールディングス 乾燥装置および処理膜形成システム
EP2933342A1 (de) * 2014-04-15 2015-10-21 Böhler-Uddeholm Precision Strip GmbH Verfahren und Vorrichtung zur Herstellung eines Bandstahls mit bainitischer Gefügestruktur
CN104315819A (zh) * 2014-10-22 2015-01-28 无锡锡洲电磁线有限公司 压延铜带的除水装置
CN105674718B (zh) * 2016-01-19 2018-03-16 江苏杭钢精密铝业有限公司 一种扁管型材吹气干燥装置
DE102016103079A1 (de) * 2016-02-22 2017-08-24 Loi Thermprocess Gmbh Einrichtung und Verfahren zur Wärmebehandlung eines Flacherzeugnisses
CN108355871A (zh) * 2018-04-18 2018-08-03 广东鸿图武汉压铸有限公司 一种适用于压铸成型的专用喷涂设备
KR102209602B1 (ko) * 2018-12-07 2021-01-28 주식회사 포스코 강판 냉각 장치
PL3763836T3 (pl) * 2019-07-11 2023-09-11 John Cockerill S.A. Urządzenie chłodzące do nadmuchiwania gazu na powierzchnię przemieszczającej się taśmy

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Also Published As

Publication number Publication date
US9441649B2 (en) 2016-09-13
RU2010150781A (ru) 2012-06-20
US8771588B2 (en) 2014-07-08
ES2827287T3 (es) 2021-05-20
FR2931165B1 (fr) 2010-11-26
RU2467074C2 (ru) 2012-11-20
EP2283165A1 (fr) 2011-02-16
WO2009138602A1 (fr) 2009-11-19
CN102027142B (zh) 2013-12-25
FR2931165A1 (fr) 2009-11-20
CN102027142A (zh) 2011-04-20
US20110030820A1 (en) 2011-02-10
US20140158234A1 (en) 2014-06-12

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