EP1156893A1 - Procede et dispositif pour secher et maintenir sec en particulier un feuillard lamine a froid dans la zone de sortie d'installations de laminage a froid et de laminage de feuillards - Google Patents

Procede et dispositif pour secher et maintenir sec en particulier un feuillard lamine a froid dans la zone de sortie d'installations de laminage a froid et de laminage de feuillards

Info

Publication number
EP1156893A1
EP1156893A1 EP00906331A EP00906331A EP1156893A1 EP 1156893 A1 EP1156893 A1 EP 1156893A1 EP 00906331 A EP00906331 A EP 00906331A EP 00906331 A EP00906331 A EP 00906331A EP 1156893 A1 EP1156893 A1 EP 1156893A1
Authority
EP
European Patent Office
Prior art keywords
strip
band
rolling
belt
partition
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
Application number
EP00906331A
Other languages
German (de)
English (en)
Other versions
EP1156893B1 (fr
Inventor
Wolfgang Denker
Michael Hanisch
Hans-Peter Richter
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 EP1156893A1 publication Critical patent/EP1156893A1/fr
Application granted granted Critical
Publication of EP1156893B1 publication Critical patent/EP1156893B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B21B45/0269—Cleaning
    • B21B45/0275—Cleaning devices
    • B21B45/0278—Cleaning devices removing liquids
    • 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
    • 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
    • B08B5/023—Cleaning travelling work
    • B08B5/026—Cleaning moving webs

Definitions

  • the invention relates to a method and an apparatus for drying and keeping dry, in particular of rolled strips (cold strip) up to approx. 10 mm thick, preferably less than 0.2 mm thick, in the outlet area of cold rolling and strip plants in which to separate the "Moisture room" of the rolling mill opposite the further Auslauf erei ch behind the last rolling stand "drying room” a partition is arranged, the upper part of which adjoins the platform up to the stand and the lower part below the band to the base plate.
  • the required quality of the "cold strip" product in the outlet of rolling mills is also dryness and cleanliness of the strip surface, since otherwise surface defects, such as stains, are unavoidable during further processing of the strip.
  • DE 28 44 434 A1 proposes to suck off liquid residues from sheets and strips running through, in particular in rolling mills and strip treatment systems, in a defined area across the sheet surface by means of a vacuum generated by means of suction pipes or by means of the suction air streams generated thereby. Sealing lips made of rubber, plastic or brushes are attached to the side of the suction pipes, which have a longitudinal slot, and seal the suction area laterally against the belt.
  • DE 44 22 422 A1 discloses a device for the contact-free sealing of a gap between a partition and a work roll in the outlet of a roll stand.
  • the end of the bulkhead lies contactlessly with a small gap-like spacing approximately tangentially on the surface of the work roll.
  • the gap formed in this way between the partition and the work roll is sealed with a high-energy flow (by means of compressed air) emerging from a gap nozzle arranged in the end part of the partition.
  • the negative pressure caused by this flow due to the tapering formation of the end part and its arrangement relative to the work roll causes large amounts of air to be additionally sucked in through the gap and flow in the direction of the wet area towards the work roll. This creates a defined flow between the bulkhead and the rolling stock, in the area of which wet air with drops and others. Particles is suctioned off.
  • partitioning for keeping cold strip dry in the outlet of a roll stand with means for repelling liquid rolling medium and / or for removing spray or spray liquid adhering to surfaces of the strip is described in DE 195 35 168 A1.
  • the bulkhead consisting of a permanently installed part and a moving part arranged on the belt side (to enable easy roll change), extends above the belt outlet to the scaffolding platform and below the belt outlet to the base plate.
  • the following device parts are arranged on the movable part of the partition:
  • bale gap seal designed to seal the roll space located above the belt against the belt
  • a strip edge blow-off designed to generate an air flow perpendicular to the strip in the outgoing roller gap above the strip run, by means of which the entrained roller oil is deflected from the strip at the side of the strip edges
  • a fume extractor designed to generate a parallel air flow against the belt running direction above and below the belt.
  • the invention has for its object to form a simple method and a device based thereon from simple and rolling mill-compatible components for the contactless sealing of a gap between a partition and a strip in the outlet of cold rolling and strip systems in such a way that with reasonable energy expenditure and Low noise development, both a dry strip surface and a complete separation of the wet-wet roll area from the finished rolled strip is achieved by further development of the known devices.
  • the object is achieved in terms of method in a method of the type mentioned in the preamble of claim 1 by the characterizing measures of claim 1 and in terms of the device with the characterizing features of claim 3.
  • the compressed gas above and below the strip additionally in the form of a spa flow parallel to the strip surface in the direction of the rolling mill and in the opposite direction is carried out, penetration of rolling oil or emulsion is successfully prevented even at high belt speeds of over 1000 m per minute, regardless of the belt width, and contactless belt drying is achieved.
  • the gap flow which runs parallel to the strip surface also reliably prevents rolling oil or emulsion from penetrating to the side of the strip. Also running down at the top bulkhead Liquid is specifically returned to the rolling mill through this gap flow.
  • the pressure at which the gas is guided at right angles from above and below against the belt surface is approximately 1 to 10 bar, preferably approximately 5 bar, which ensures that the construction of an air cushion-like compressed gas cushion is carried out for the optimal sealing and the subsequent one Crevice flow is energetic enough to prevent moisture penetration.
  • the gap between the partition and the band is preferably set to 0.1 to 1 mm, preferably to 0.2 mm plus the band thickness, in order to keep the gas quantities as low as possible for a given gas pressure to achieve the desired effect.
  • a device for carrying out this method consists of a partition arranged above and below the belt, the stationary parts of which connect above the belt to the scaffolding platform and below the belt to the base plate.
  • these permanently installed bulkhead parts are extended so far by movable (movable) bulkhead parts that a narrow gap is set between these movable bulkhead parts and the surface of the band.
  • This gap can be set to a predetermined gap width by moving the movable bulkhead parts against a fixed or adjustable stop, or it adjusts itself automatically due to the compressed gas cushion.
  • it is 0.1 to 1 mm, preferably 0.2 mm, regardless of the strip thickness.
  • the hinge-side end of the movable partition is formed by a blow nozzle bar, into which holes (blow nozzles) are arranged, through which a gas is guided with pressure against the belt surface.
  • a blow nozzle bar into which holes (blow nozzles) are arranged, through which a gas is guided with pressure against the belt surface.
  • approximately 250 blowing nozzles with a diameter of approximately 1 mm are arranged in the blowing nozzle strip per meter of strip length.
  • the blowing nozzles are advantageously arranged one behind the other across the entire bandwidth in the center of the blowing nozzle strip.
  • blow nozzle bars - their length corresponds at least to the bandwidth and their width is about 10 to 500 mm, preferably about 60 mm, and the blow nozzle bar side formed parallel to the belt surface is in the middle (in relation to the blow nozzle bar pulp) te)
  • Compressed gas emerging from the blowing nozzles is able to build up the air cushion-like compressed gas cushion required for reliable sealing.
  • the band-side blow nozzle line due to the broad design of the band-side blow nozzle line, the width of which extends significantly beyond the area of the blow nozzle openings and which runs parallel to the band surface, the gap to be sealed in the direction of the band length is wide enough to ensure a reliably acting gap flow parallel to the band surface towards the rolling mill and in the opposite direction with the help of the compressed gas.
  • FIG. 1 in side view in a detail
  • FIG. 2 shows a schematic enlargement of the blow nozzle strips according to FIG. 1.
  • the bulkhead 12, 13 opens into a frame 14, 15 on the hinge side, which is likewise arranged in a stationary manner or is designed to be movable and in which movable blower nozzle carriers 16, 16 ', 17, 17' are arranged.
  • the hinge-side termination of the partition 12, 13 with the blow nozzle carriers 16, 16 *, 17, 17 ' form the blow nozzle strips 18, 19 with centrally arranged blow nozzles 23 in the form of bores which are fastened on the hinge side to the blow nozzle carriers 16 *, 17' and due to the movable arrangement of the frame 14, 15 and the movable Arrangement of the blow nozzle carrier 16, 16 ', 17, 17' can be moved up to the band 10.
  • An adjustable or permanently installed stop 20 ensures that a certain gap width between the blowing nozzle strips 18, 19 and the surface of the belt 10 can be adjusted or adjusts itself automatically due to the compressed gas cushion, whereby this gap is thus made possible by the ability of the blowing nozzle to be moved can also be adapted to different strip thicknesses.
  • the blow nozzle strips 18, 19 form chambers 24, 25, 26, 27, specifically inner chambers 24, 25 and outer chambers 26, 27, which pass through the chamber openings 28 , 29 are connected.
  • the inner chambers 24, 25 can be filled with the pressurized gas via inlet openings 21, 22, which then flows into the outer chambers 26, 27 via the chamber openings 28, 29 and is guided from there via the blow nozzles 23 perpendicularly to the surface of the belt 10.
  • the formation of chambers above or below the blowing nozzle strip advantageously creates a reservoir and an equalization for the compressed gas.
  • FIG. 2 shows the resulting flow directions of the compressed gas, starting only from the outer chambers 26, 27, in a schematic enlargement.
  • the components of FIG. 2 are shown very schematically and differ in shape from the components of FIG. 1, the same reference numerals have been chosen for better understanding of the same components.
  • the device according to the invention functions as follows: compressed gas 33 flows out of the inner chambers 24, 25 (the chambers are not shown in FIG. 2) through the chamber openings 28, 29 into the outer chambers 26, 27 and from there through the blowing nozzles 23 perpendicular to the surfaces of the band 10 and here forms a compressed gas cushion above and below the band 10 in the gap 30.
  • the pressure gas 33 divides in the gap 30 and flows in a gap flow 32 to the damp room 35 of the roll stand (to the right in FIG. 2) and in the opposite direction as a gap flow 31 to the drying chamber 34 of the finished rolled strip (to the left in FIG. 2).
  • the fact that the blowing nozzle strips 18, 19 are formed with a wide band-side blowing nozzle strip surface parallel to the strip surface results in a gap corresponding to the width of the blowing nozzle strips, so that the desired gap flow 31, 32 can also be established here.
  • the partition 12, 13 is also shown schematically in FIG. 2 to indicate that the interaction of the partition with the pressurized gas cushion and the gap flow 31, 32 separates the drying chamber 34 from the damp strip 35 with the finished rolled strip of the rolling stand is reached.
  • Blower nozzle strips the number and arrangement of the blower nozzles and the design of the blower nozzle carrier differ from the example shown, if the basic principle of the invention, the formation of an air cushion-like compressed gas cushion with a gap flow on both surface sides of the belt is retained.
  • the compressed gas chambers formed above or below the blow nozzle bar are not absolutely necessary in order to To carry out the subject of the invention.
  • the inventive method and the device are also suitable for drying and keeping dry for any profiles. The corresponding design adjustment is at the discretion of the person skilled in the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Metal Rolling (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Laminated Bodies (AREA)

Abstract

Dans la technique antérieure, pour sécher et maintenir secs en particulier des feuillards laminés (10), on sépare la zone sèche (34) du feuillard laminé fini et la zone humide (35) de la cage de laminoir au moyen d'éléments de séparation (12, 13; 14, 15). Selon l'invention, une étanchéification sans contact est réalisée entre les éléments de séparation (12, 13; 14, 15) et le feuillard (10) au moyen d'une poche de gaz sous pression, similaire à un coussin d'air, et au moyen d'un écoulement (31, 32) circulant dans l'espace de séparation. Le gaz sous pression (33) provenant d'une pluralité de buses (23) est guidé de bas en haut et de haut en bas sur la surface des feuillards perpendiculairement à cette dernière, à partir de rampes de buses (18, 19).
EP00906331A 1999-03-01 2000-02-16 Procede et dispositif pour secher et maintenir sec en particulier un feuillard lamine a froid dans la zone de sortie d'installations de laminage a froid et de laminage de feuillards Expired - Lifetime EP1156893B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19908743A DE19908743A1 (de) 1999-03-01 1999-03-01 Verfahren und Vorrichtung zum Trocknen und Trockenhalten von insbesondere Kaltband im Auslaufbereich von Kaltwalz- und Bandanlagen
DE19908743 1999-03-01
PCT/EP2000/001235 WO2000051757A1 (fr) 1999-03-01 2000-02-16 Procede et dispositif pour secher et maintenir sec en particulier un feuillard lamine a froid dans la zone de sortie d'installations de laminage a froid et de laminage de feuillards

Publications (2)

Publication Number Publication Date
EP1156893A1 true EP1156893A1 (fr) 2001-11-28
EP1156893B1 EP1156893B1 (fr) 2003-04-23

Family

ID=7899219

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00906331A Expired - Lifetime EP1156893B1 (fr) 1999-03-01 2000-02-16 Procede et dispositif pour secher et maintenir sec en particulier un feuillard lamine a froid dans la zone de sortie d'installations de laminage a froid et de laminage de feuillards

Country Status (14)

Country Link
US (1) US6834521B1 (fr)
EP (1) EP1156893B1 (fr)
JP (1) JP2002538004A (fr)
KR (1) KR20010108279A (fr)
CN (1) CN1151004C (fr)
AT (1) ATE238110T1 (fr)
AU (1) AU2804800A (fr)
BR (1) BR0008574A (fr)
CA (1) CA2364078A1 (fr)
DE (2) DE19908743A1 (fr)
EA (1) EA002541B1 (fr)
ES (1) ES2197861T3 (fr)
TR (1) TR200102526T2 (fr)
WO (1) WO2000051757A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100799707B1 (ko) * 2001-12-22 2008-02-01 주식회사 포스코 열간 압연 스트립 상의 이물질 및 물방울 제거 방법
DE10206244A1 (de) * 2002-02-15 2003-08-28 Sms Demag Ag Vorrichtung zum Trockenhalten von Kaltband im Auslauf von Bandwalzanlagen
FR2857734B1 (fr) * 2003-07-16 2005-09-02 Stein Heurtey Procede et dispositif de sechage d'un revetement non metallique sur une bande d'acier
DE102004040375A1 (de) * 2004-06-09 2005-12-29 Sms Demag Ag Verfahren und Walzgerüst zum Kaltwalzen von metallischem Walzgut, insbesondere von Walzband, mit Düsen für gasförmige oder flüssige Behandlungsmedien
US8499410B2 (en) * 2004-08-05 2013-08-06 Kobe Steel, Ltd. Deposit removing device
DE102004060086A1 (de) * 2004-12-14 2006-06-22 Sms Demag Ag Verfahren und Vorrichtung zum Bandabblasen im Auslauf von Walzwerken zur Erzeugung von tropfenfreiem und sauberem Walzband
DE102009023359A1 (de) 2008-08-18 2010-02-25 Sms Siemag Ag Verfahren und Vorrichtung zur Kühlung und Trocknung eines Warmbandes oder eines Bleches in einem Walzwerk
DE102009015206B4 (de) * 2009-03-26 2012-08-16 ACHENBACH BUSCHHüTTEN GMBH Verfahren und Vorrichtung zum Abblasen von Walzband mittels Luft oder gasförmiger Medien auf der Bandauslaufseite von Walzwerken zum Entfernen von an dem Walzband anhaftendem Walzöl oder anderen flüssigen Betriebsmedien
CN103217006A (zh) * 2013-04-18 2013-07-24 天津冶金轧一华信制钢有限公司 表面流体驱离装置
CN104190727B (zh) * 2014-09-20 2016-06-08 唐山市德龙钢铁有限公司 一种用于线材精轧机组出口的微型封水装置
KR101598363B1 (ko) 2014-12-19 2016-02-29 주식회사 포스코 스트립 건조 장치

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US2900991A (en) * 1956-03-26 1959-08-25 Ajem Lab Inc Power washer
US3192752A (en) * 1963-06-27 1965-07-06 Aluminum Co Of America Cold rolling aluminum and product
FR2212187B1 (fr) 1972-12-29 1975-03-28 Creusot Loire
GB1481022A (en) 1975-05-01 1977-07-27 Davy Loewy Ltd Removing material from a surface or surfaces of moving strip
US4400961A (en) * 1981-07-15 1983-08-30 Schaming Edward J Apparatus for removing liquid coolant from metal strips in a rolling mill
US4477287A (en) * 1983-02-08 1984-10-16 Kaiser Aluminum & Chemical Corporation Liquid removal device
US4552003A (en) 1983-08-08 1985-11-12 Atlantic Richfield Company Lubricant removal system for a cold rolling mill
JPS62259611A (ja) 1986-05-02 1987-11-12 Nisshin Steel Co Ltd 圧延油のワイピング方法及びその装置
DE59202907D1 (de) * 1991-05-17 1995-08-24 Sundwiger Eisen Maschinen Vorrichtung zum Entfernen von Flüssigkeit von der Oberfläche eines bewegten Bandes.
DE4305907A1 (de) * 1993-02-24 1994-08-25 Sundwiger Eisen Maschinen Vorrichtung zum Entfernen von Flüssigkeit von der Oberfläche eines bewegten Bandes, insbesondere eines Walzbandes an einem Walzgerüst
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DE19535168A1 (de) 1995-09-22 1997-03-27 Schloemann Siemag Ag Vorrichtung zum Trockenhalten von Kaltband im Auslauf von Kaltwalz- und Bandanlagen

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Also Published As

Publication number Publication date
CN1151004C (zh) 2004-05-26
EA002541B1 (ru) 2002-06-27
ES2197861T3 (es) 2004-01-16
CN1342108A (zh) 2002-03-27
DE19908743A1 (de) 2000-09-07
WO2000051757A1 (fr) 2000-09-08
ATE238110T1 (de) 2003-05-15
BR0008574A (pt) 2002-01-22
AU2804800A (en) 2000-09-21
CA2364078A1 (fr) 2000-09-08
EA200100931A1 (ru) 2002-02-28
JP2002538004A (ja) 2002-11-12
EP1156893B1 (fr) 2003-04-23
US6834521B1 (en) 2004-12-28
KR20010108279A (ko) 2001-12-07
DE50001867D1 (de) 2003-05-28
TR200102526T2 (tr) 2002-04-22

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