EP0185847A2 - Procédé pour l'utilisation d'un four de réchauffage et four de réchauffage pour billettes, blocs ou similaires - Google Patents

Procédé pour l'utilisation d'un four de réchauffage et four de réchauffage pour billettes, blocs ou similaires Download PDF

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Publication number
EP0185847A2
EP0185847A2 EP85110662A EP85110662A EP0185847A2 EP 0185847 A2 EP0185847 A2 EP 0185847A2 EP 85110662 A EP85110662 A EP 85110662A EP 85110662 A EP85110662 A EP 85110662A EP 0185847 A2 EP0185847 A2 EP 0185847A2
Authority
EP
European Patent Office
Prior art keywords
furnace
heating
ceiling
chambers
heating furnace
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.)
Withdrawn
Application number
EP85110662A
Other languages
German (de)
English (en)
Other versions
EP0185847A3 (fr
Inventor
Heinrich Dipl.-Ing. Patalon
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 Engineering GmbH
Original Assignee
Didier 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 Engineering GmbH filed Critical Didier Engineering GmbH
Publication of EP0185847A2 publication Critical patent/EP0185847A2/fr
Publication of EP0185847A3 publication Critical patent/EP0185847A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0024—Charging; Discharging; Manipulation of charge of metallic workpieces
    • 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
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • 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
    • F27B17/00—Furnaces of a kind not covered by any preceding group
    • F27B17/0016—Chamber type furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/18—Door frames; Doors, lids, removable covers
    • F27D1/1808—Removable covers
    • 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
    • F27B17/00—Furnaces of a kind not covered by any preceding group
    • F27B17/0016—Chamber type furnaces
    • F27B2017/0091—Series of chambers, e.g. associated in their use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/18—Door frames; Doors, lids, removable covers
    • F27D1/1808—Removable covers
    • F27D2001/1825—Means for moving the cover
    • F27D2001/1841—Means for moving the cover comprising means for rotating or moving the cover in a horizontal or quasi horizontal plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/008—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising cross-beams or gantry cranes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/04—Ram or pusher apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2001/00—Composition, conformation or state of the charge
    • F27M2001/15—Composition, conformation or state of the charge characterised by the form of the articles
    • F27M2001/1539—Metallic articles
    • F27M2001/1547—Elongated articles, e.g. beams, rails
    • F27M2001/1552—Billets, slabs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00—Type of treatment of the charge
    • F27M2003/02—Preheating, e.g. in a laminating line
    • F27M2003/025—Drying

Definitions

  • the invention relates to a method for operating a heating furnace according to the preamble of the main claim and to a heating furnace according to the preamble of claim 3.
  • Modern reheating furnaces must therefore be matched to this cooperative heating and operating sequence in terms of their process engineering and construction.
  • heating of cold heating material should be possible, and heating and equalizing the temperature of heating material with temperatures of 1100 to 1260 ° C.
  • the heating of hot material with temperatures of 1100 to 1260 ° C mostly focuses only on the edges and marginal zones, since these areas are subject to increased cooling on the way from the continuous caster to the heating furnace.
  • the invention has for its object to provide a heating furnace and a heating process in which the smallest possible heat losses occur, at the same time a largely individual heating of individual batches is possible and finally a stackability and thus a heat balance between the continuous casting machine and the rolling mill is created.
  • 1 and 6, 1 denotes an oven chamber in which the heating material 2 consisting of slabs is stacked.
  • the stacking is carried out according to an essential feature of the invention in such a way that the slab edge areas are either exposed or covered by the already warm inner areas of the slabs.
  • the edge regions of the heat material 2 are then accessible for heat transfer from the furnace chamber, while the inner region provides the desired temperature compensation by means of heat conduction and heat radiation.
  • This stacking scheme can be clearly seen in FIG. 1.
  • the furnace chamber is formed by walls in which burners 5 are arranged.
  • the top of the furnace chamber 1 is open and is closed by a furnace ceiling 3, which rests on the wall areas of the furnace chamber 1 with the interposition of insulating fiber mats 12.
  • the be made of ceramic material standing furnace ceiling 3 is supported by a ceiling trolley 4, which runs on a support structure 7, which creates a track 8 on which the ceiling trolley 4 with its wheels 6 is supported.
  • the furnace ceiling 3 is equipped with an additional insulating apron which leads into a water cup 9.
  • the foundation of the furnace can be seen, on which a corresponding steel grate 13 rests.
  • the heating material 2 rests within the furnace chamber on the benches 11 existing on the ceramic material or steel tubes, which are arranged at a distance from one another and thus enable the heating material 2 to be underheated.
  • the adjoining furnace ceilings 3 engage in one another via a tongue-and-groove connection.
  • the burners 5 in the side walls of the furnace are arranged in such a way that the hot gas jet generated by them sweeps the edge regions of the heat material 2.
  • FIG. 2 a suction opening for the combustion gases is shown in Fig. 2.
  • a charging and decharging machine 15 is arranged above the overall ceiling of the oven chambers formed by the individual ceilings 3, which carries a heating material 2 in the illustrated embodiment and can be moved on a track 20 and is lifted transversely to this track 20. and can be lowered.
  • ram carriages At 17 at the ends of the adjoining furnace ceilings are arranged ram carriages, which ensure that the individual furnace ceilings connect tightly and without heat losses to one another when the ceiling is closed.
  • the charging and decharging machine 15 is equipped with a programmable path control which allows any starting positions. A corresponding stacking pattern is practically possible due to the simultaneously specified or measured warm material dimensions.
  • Ceiling car positioning machines 16 move to the furnace chambers 1 concerned and latch the assigned ceilings 4.
  • the opening path (opening area minimized according to the dimensions of the heating material) is determined by calculation and the carriage chain is divided into two groups, which are moved by the machines 16 in such a way that the opening area of the furnace chamber 1 concerned has the correct position and size.
  • the charging or decharging process is then carried out by the charging and decharging machine 15.
  • the chain of blanket car 4 is closed again and the push rod 17 ensure a tight connection of all blanket cars to one another.
  • the furnace chamber 1 consists of chamber I and chamber II.
  • the burners 5 are arranged in the outer wall regions of the chambers I and II, while a partition 18 between the chambers I and II is equipped with openings 19 which lead to partial heat compensation.
  • a Such an arrangement is particularly suitable for cold or warm use at approx. 700 to 1000 ° C.
  • the basic idea is energy saving. The following explanation:
  • the chambers I and II are loaded with hot material 2. Now, however, only the chamber I is heated by the burners 5 and the chamber II receives the combustion gases or heating gases already partially used in chamber I through the opening 19 in the partition wall 18. As soon as the heating material in the chamber I is ready for drawing, the chamber I emptied and reloaded. The burners arranged in this chamber are stopped and now the burners 5 arranged on the wall of chamber II are put into operation. As a result, the chamber II is heated and the chamber I receives the cooled combustion gases for further use through the openings 19. The procedure described improves the thermal efficiency, particularly when used cold.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (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)
EP85110662A 1984-11-23 1985-08-24 Procédé pour l'utilisation d'un four de réchauffage et four de réchauffage pour billettes, blocs ou similaires Withdrawn EP0185847A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3442707A DE3442707C2 (de) 1984-11-23 1984-11-23 Wärmofen für Wärmgut, wie Brammen und Blöcke
DE3442707 1984-11-23

Publications (2)

Publication Number Publication Date
EP0185847A2 true EP0185847A2 (fr) 1986-07-02
EP0185847A3 EP0185847A3 (fr) 1989-07-26

Family

ID=6250951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110662A Withdrawn EP0185847A3 (fr) 1984-11-23 1985-08-24 Procédé pour l'utilisation d'un four de réchauffage et four de réchauffage pour billettes, blocs ou similaires

Country Status (3)

Country Link
US (1) US4629417A (fr)
EP (1) EP0185847A3 (fr)
DE (1) DE3442707C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0610028A2 (fr) * 1993-01-29 1994-08-10 Hitachi, Ltd. Procédé et dispositif pour la coulée continue et le laminage à chaud

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2023824B3 (es) * 1986-01-16 1992-02-16 Sms Schloemann-Siemag Ag Procedimiento de trabajo para calentamiento de semiproductos vertidos en equipos de chorro o transformados en equipos de transformacion para su introduccion en equipos de transformacion y/o tratamiento ulterior.
US5304333A (en) * 1992-10-23 1994-04-19 Trevino Gonzales Francisco Concrete product molding and curing plant methods and apparatus
US5445492A (en) * 1994-04-05 1995-08-29 Aubertot; Christophe Straight setting pattern for clay bricks
IT1281420B1 (it) * 1995-09-13 1998-02-18 Danieli Off Mecc Procedimento di equalizzazione in un forno di riscaldo con ambiente ad ossidazione controllata e forno di riscaldo
CN106370011B (zh) * 2016-08-19 2019-05-24 瓦房店光达轴承制造有限公司 热处理井式炉自动化生产及配套装置
JP7319529B2 (ja) * 2019-06-13 2023-08-02 日本製鉄株式会社 バッチ式加熱炉の操業方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE382565A (fr) *
GB488344A (en) * 1937-10-28 1938-07-05 Ofenbau Und Industrieanlagen G An improved reheating furnace for the heating of steel ingots
US2478190A (en) * 1945-03-08 1949-08-09 Loftus Engineering Corp Inc Pit type furnace
GB698904A (en) * 1951-04-05 1953-10-28 Stein & Atkinson Ltd Improvements in or relating to means for handling the covers of soaking pits and other furnaces

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US295667A (en) * 1884-03-25 Lumber-kiln
US903511A (en) * 1907-07-16 1908-11-10 Paul Schmidt Ingot-heating furnace.
US1698367A (en) * 1926-06-30 1929-01-08 Kehren Gottfried Pit furnace
DE1433722C3 (de) * 1963-08-22 1972-11-02 Deutsche Edelstahlwerke AG, 4150Krefeld Gas- oder ölbeheizter Wärmofen
US3226101A (en) * 1963-10-21 1965-12-28 Flinn & Dreffein Engineering C Insulated furnace members
US3553414A (en) * 1968-12-02 1971-01-05 Bruce E Mcarthur Slab transfer apparatus
US4170815A (en) * 1977-05-23 1979-10-16 Chugairo Kogyo Kaisha Ltd. Method of operating a reheating furnace in hot rolling line
DE3248234C2 (de) * 1982-12-28 1986-06-12 Keramikindustrieanlagen W.Strohmenger GmbH & Co KG, 8524 Neunkirchen Tunnelofen
DE3312467C2 (de) * 1983-02-25 1985-02-14 Didier Engineering Gmbh, 4300 Essen Ofen zum Erwärmen von Wärmgut, wie Brammen, Knüppel od. dgl.
DE3319483A1 (de) * 1983-05-24 1984-12-06 Didier Engineering Gmbh, 4300 Essen Verfahren und vorrichtung zum erwaermen von waermgut, wie brammen, knueppel od. dgl.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE382565A (fr) *
GB488344A (en) * 1937-10-28 1938-07-05 Ofenbau Und Industrieanlagen G An improved reheating furnace for the heating of steel ingots
US2478190A (en) * 1945-03-08 1949-08-09 Loftus Engineering Corp Inc Pit type furnace
GB698904A (en) * 1951-04-05 1953-10-28 Stein & Atkinson Ltd Improvements in or relating to means for handling the covers of soaking pits and other furnaces

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LA METALLURGIE, Band 101, Nr. 5, Mai 1969, Seiten 274-278; "Les fors de forge" *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0610028A2 (fr) * 1993-01-29 1994-08-10 Hitachi, Ltd. Procédé et dispositif pour la coulée continue et le laminage à chaud
EP0610028A3 (fr) * 1993-01-29 1995-01-18 Hitachi Ltd Procédé et dispositif pour la coulée continue et le laminage à chaud.
US5461770A (en) * 1993-01-29 1995-10-31 Hitachi, Ltd. Method and apparatus for continuous casting and hot-rolling

Also Published As

Publication number Publication date
US4629417A (en) 1986-12-16
DE3442707A1 (de) 1986-06-05
DE3442707C2 (de) 1986-11-13
EP0185847A3 (fr) 1989-07-26

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Inventor name: PATALON, HEINRICH, DIPL.-ING.