EP0361058B1 - Ofenanlage zum Wärmen bzw. Nachwärmen von bandförmigem Wärmgut - Google Patents

Ofenanlage zum Wärmen bzw. Nachwärmen von bandförmigem Wärmgut Download PDF

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Publication number
EP0361058B1
EP0361058B1 EP89115168A EP89115168A EP0361058B1 EP 0361058 B1 EP0361058 B1 EP 0361058B1 EP 89115168 A EP89115168 A EP 89115168A EP 89115168 A EP89115168 A EP 89115168A EP 0361058 B1 EP0361058 B1 EP 0361058B1
Authority
EP
European Patent Office
Prior art keywords
furnace
strip
roller table
storage
further processing
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
EP89115168A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0361058A1 (de
Inventor
Heinrich Patalon
Ernst Windhaus
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.)
Didier Ofu Engineering GmbH
Original Assignee
Didier Ofu Engineering GmbH
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 Didier Ofu Engineering GmbH filed Critical Didier Ofu Engineering GmbH
Publication of EP0361058A1 publication Critical patent/EP0361058A1/de
Application granted granted Critical
Publication of EP0361058B1 publication Critical patent/EP0361058B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C21D9/68—Furnace coilers; Hot coilers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/021—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces having two or more parallel tracks
    • F27B9/025—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces having two or more parallel tracks having two or more superimposed tracks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
    • F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)

Definitions

  • the invention relates to a furnace installation according to the generic term according to claim 1.
  • a continuous caster usually forms and cuts the continuous casting into thin slabs or pre-strips, which are then brought to a specified inlet temperature (e.g. 1,100 ° C) for the rolling process or another processing process in a heating furnace system and fed to the corresponding plant .
  • a specified inlet temperature e.g. 1,100 ° C
  • the continuous casting installation In the event of malfunctions on and in the further processing plant, for example the rolling mill, the continuous casting installation must continue to work, so that, in the worst case, at least the ladle content already in the casting process can still be poured. This results in the need to temporarily store the continuous casting sections, such as thin slabs and pre-strips.
  • the invention has for its object to provide an economically and rationally operating furnace system with which interruptions on and in the rolling mill or in further processing can be compensated for with the least possible effort and energy and time loss at least until the casting ladle which is already in the casting process is completely emptied .
  • the furnace system is designed in accordance with claim 2, as a result of which in particular the space required for the storage furnace or furnaces can be kept relatively low.
  • the furnace system is advantageously equipped according to claim 3. This system also guarantees a direct conveying path from the storage furnace through the heating furnace for further processing without any special effort.
  • the proposal according to claim 4 serves to ensure that, in the event of a malfunction in the rolling process, the continuous casting process never has to be interrupted until the pouring ladle which is already in operation is emptied.
  • FIG. 1 and 2 show an oven system which is connected behind a continuous casting mold 10 of a continuous casting machine, not shown, and its take-off rollers 11 with a horizontal roller table 12 and a flying cutting device 13.
  • the furnace system contains a roller-hearth heating furnace 14 and two storage furnaces 15.
  • the roller hearth system of the heating furnace 14 contains two stacked roller tables 16 and 17, the conveyor rollers of which, as can be seen from FIG. 3, are mounted on both sides outside the furnace chamber 18 and, guided and moved laterally by their drive devices, through openings in the two furnace side walls into the furnace chamber 18 retractable and retractable from it.
  • the upper roller table 16 can only be driven in the direction of entry in order to transport the section separated from the continuous casting as heating material 20 (preliminary strip, thin slab) into the heating furnace 14.
  • the conveyor rollers of the lower roller table 17 arranged below are reversible, that is to say they can be driven both in the same direction of rotation as the upper roller table 16 and in the opposite direction of rotation.
  • the conveyor rollers of both roller tables 16 and 17 are arranged exactly above one another with sufficient gaps. Within these gaps, the lifting hearth benches 19 can be moved vertically in the direction of the double arrow in a suitable number. This vertical movement of the lifting hearth benches 19 extends from its lowest position below the working level of the lower roller table 17 to over the working level of the upper roller table 16 such that the conveyor rollers to be introduced from the outside into the furnace chamber 18 of one or the other roller table 16 or 17 are each below the overlying heating goods 20 can be moved into and out of the spaces between the lifting hearth benches 19.
  • a coil winding device 21 is arranged in the working plane of the lower roller table 17, which is designed both for winding the strip-shaped heating material pieces 20 into easily storable coils 22 and for unwinding them after their storage time, around the heating material pieces 20 to be able to insert it again as a stretched opening strip into the heating and rolling process via the lower roller table 17.
  • a storage furnace 15 in the manner of a bell-type furnace with a plurality of chambers accommodating the coils 22 is arranged on rails 23 on both sides.
  • the preliminary strip 20 is brought to the required drawing or rolling temperature in this position.
  • all the conveyor rollers of the upper roller table 16 are retracted into the furnace chamber 18 in time to accommodate the new preliminary strip 20.
  • the lower roller table 17 now also moves from the outside with its conveyor rollers into the furnace chamber 18 between the lifting hearth benches 19.
  • the lifting hearth 19 then moves slowly down and gently places the preliminary strip 20 on the lower roller table 17. This then runs forward with undisturbed rolling operation and conveys the correctly reheated pre-strip 20 to the first stand of the rolling mill.
  • its conveyor rollers are moved out of the furnace chamber 18 into the open again until the subsequent preliminary belt 20 has the desired temperature.
  • the last-mentioned conveying movement of the lower roller table 17 is not carried out in the direction toward the rolling mill, but by a reversing circuit to the rear to the coil winder 21, which produces a coil 22 from the preliminary strip 20.
  • One of the movable hood furnaces 15 travels with an empty chamber at the level of the coil winder 21 for its absorption and heat storage. These processes are repeated until the malfunction in the rolling mill has been rectified or until the ladle in operation has been emptied.
  • the coils 22 are initially unwound again one after the other to stretch pre-strips 20 and, via the lower roller table 17, again positioned in the heating furnace 14 for mostly brief reheating on the lifting hearth benches 19.
  • the pre-strips 20 can be fed to the further processing in a relatively rapid sequence. Continuous casting is continued in good time during the last heating processes, so that there is practically no interruption.
  • each oven hearth advantageously has a maximum of only four cross tractor slots, in such a way that both the storage and the emptying of the storage furnaces are carried out by the same cross tractor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Tunnel Furnaces (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
EP89115168A 1988-09-03 1989-08-16 Ofenanlage zum Wärmen bzw. Nachwärmen von bandförmigem Wärmgut Expired - Lifetime EP0361058B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3830027 1988-09-03
DE3830027A DE3830027A1 (de) 1988-09-03 1988-09-03 Ofenanlage zum waermen bzw. nachwaermen von bandfoermigem waermgut

Publications (2)

Publication Number Publication Date
EP0361058A1 EP0361058A1 (de) 1990-04-04
EP0361058B1 true EP0361058B1 (de) 1993-03-31

Family

ID=6362260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89115168A Expired - Lifetime EP0361058B1 (de) 1988-09-03 1989-08-16 Ofenanlage zum Wärmen bzw. Nachwärmen von bandförmigem Wärmgut

Country Status (3)

Country Link
EP (1) EP0361058B1 (enrdf_load_stackoverflow)
DE (2) DE3830027A1 (enrdf_load_stackoverflow)
ES (1) ES2040424T3 (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4416235A1 (de) * 1994-05-07 1995-11-09 Iob Ind Ofen Bau Gmbh Fertigungsanlage, mit Gießmaschinen und einem Glühofen, mit einer Pufferstrecke zur kontinuierlich/diskontinuierlichen Fertigung von Schleudergußrohren
AT506603B8 (de) 2008-04-04 2010-03-15 Siemens Vai Metals Tech Gmbh Verfahren und vorrichtung für eine giess-walz-verbundanlage
CN101851702B (zh) * 2010-06-09 2011-12-07 五力机电科技（昆山）有限公司 螺旋道钉感应加热装置
CN115591954A (zh) * 2022-09-27 2023-01-13 中冶赛迪工程技术股份有限公司（Cn） 一种灵活生产金属带的冷却系统、生产线及生产方法
DE102023203508A1 (de) * 2023-04-18 2024-10-24 Sms Group Gmbh Verfahren zum Betreiben eines Glühofens

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8422609D0 (en) * 1984-09-07 1984-10-10 Davy Mckee Sheffield Metal strip
EP0264459B1 (de) * 1986-10-13 1989-09-20 Sms Schloemann-Siemag Aktiengesellschaft Herstellung von warmgewalztem Stahlband aus stranggegossenen Brammen
DE3736674C1 (en) * 1987-10-29 1989-01-26 Didier Eng Method and furnace for heating slabs, ingots, billets, sheets and similar products
DE3740619C1 (en) * 1987-12-01 1988-12-22 Didier Eng Heating furnace for a roughed-strip casting installation

Also Published As

Publication number Publication date
DE3830027A1 (de) 1990-03-15
ES2040424T3 (es) 1993-10-16
DE58903946D1 (de) 1993-05-06
EP0361058A1 (de) 1990-04-04
DE3830027C2 (enrdf_load_stackoverflow) 1990-07-05

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