DE2706345A1 - OVEN ARRANGEMENT FOR HEATING SLABS - Google Patents
OVEN ARRANGEMENT FOR HEATING SLABSInfo
- Publication number
- DE2706345A1 DE2706345A1 DE19772706345 DE2706345A DE2706345A1 DE 2706345 A1 DE2706345 A1 DE 2706345A1 DE 19772706345 DE19772706345 DE 19772706345 DE 2706345 A DE2706345 A DE 2706345A DE 2706345 A1 DE2706345 A1 DE 2706345A1
- Authority
- DE
- Germany
- Prior art keywords
- furnace
- pusher
- slabs
- arrangement according
- furnaces
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims description 13
- 239000007789 gas Substances 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
Classifications
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- 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
-
- 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 tunnel furnace
- F27B9/22—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 tunnel furnace on rails, e.g. under the action of scrapers or pushers
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- 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
- F27B19/00—Combinations of furnaces of kinds not covered by a single preceding main group
- F27B19/04—Combinations of furnaces of kinds not covered by a single preceding main group arranged for associated working
-
- 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
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
- F27B2009/3653—Preheated fuel
- F27B2009/3661—Preheated fuel preheated with the exhaust gases
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- 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 tunnel furnace
- 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 tunnel furnace 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 tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
-
- 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
- F27M2003/01—Annealing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Tunnel Furnaces (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Description
Meissner & MeissnerMeissner & Meissner
■3·■ 3 ·
DIPL-ING. W. MEISSNER (BLN) DIPL-ING. P. E. MEISSNER (MCHN) DIPL-ING. H.-J. PRESTING (BLN)DIPL-ING. W. MEISSNER (BLN) DIPL-ING. P. E. MEISSNER (MCHN) DIPL-ING. H.-J. PRESTING (BLN)
Mannesmann AG, Mannesmannufer 2, 4000 Düsseldorf 1 "Ofenanordnung zum Erwärmen von Brammen11 Mannesmann AG, Mannesmannufer 2, 4000 Düsseldorf 1 "Furnace arrangement for heating slabs 11
Die Erfindung betrifft eine Ofenanordnung zum Erwärmen von Brammen, die aus mindestens zwei Einzelöfen besteht und von denen ein Einzelofen vom Typ eines Stoßofens ist und in der die Brammen die Einzlöfen nacheinander durchlaufen und einem Walzwerk zugeführt werden.The invention relates to a furnace arrangement for heating slabs, which consists of at least two individual furnaces, one of which is of the pusher type and in which the slabs are Single melts are run through one after the other and fed to a rolling mill.
Von allen für das Erwärmen von Brammen in Frage kommenden Ofenarten ist der Stoßofen hinsichtlich des Investitionsaufwandes und der Betriebskosten der günstigste. Nachteilig ist bei diesem Ofentyp, daß mit wachsender Stapellänge der Brammen die Gefahr des Ubereinanderschiebens der Brammen wächst und damit die Baulänge und auch der Ofendurchsatz durch die Dicke der Brammen begrenzt ist. Eine weiterer Nachteil ist die Höhe der Abgastemperatur,Of all furnace types that can be used for heating slabs the pusher furnace is the cheapest in terms of investment and operating costs. This is a disadvantage Type of furnace that the longer the slabs are stacked, the greater the risk of the slabs being pushed over one another, and thus the overall length and the furnace throughput is also limited by the thickness of the slabs. Another disadvantage is the level of the exhaust gas temperature,
Eine Erhöhung der Ofentemperatur zur Durchsatzsteigerung ist metallurgisch schlecht und wirkt sich ungünstig auf die Ofenhaltbarkeit und die Betriebskosten aus.An increase in the furnace temperature to increase throughput is metallurgically bad and has an unfavorable effect on the furnace life and operating costs.
- 2 809833/0503 - 2 809833/0503
Zur Vermeidung dieser für die gegenwärtige Erfindung wichtigsten Nachteile ist bereits ein Wärmofen vorgeschlagen worden, der durch die Kombination eines Stoßofens als Aufheizzone und einem Hubbalkenofen als Ausgleichezone gekennzeichnet ist, wobei Jede Ofeneinheit eine eigene Beheizung hat (DI-OS 18 07 562). Bei Anerkennung dee durch diese Kombination bewirkten Vorteile hinsichtlich des Durchsatzes ist insbesondere die Wirtschaftlichkeit einer derartigen Ofenanordnung schlecht. Bei dieser Anordnung ist ein relativ teurer Hubbalkenofen der größten Wärmebelastung und dem größten thermischen Verschleiß ausgesetzt. Dartiberhinaue wird die Abgastemperatur nicht herabgesetzt.In order to avoid these disadvantages, which are most important for the present invention, a heating furnace has already been proposed which is characterized by the combination of a pusher furnace as the heating zone and a walking beam furnace as the compensation zone, each Oven unit has its own heating (DI-OS 18 07 562). at Recognition of the advantages brought about by this combination the throughput, in particular, the economic viability of such a furnace arrangement is poor. With this arrangement a relatively expensive walking beam furnace is exposed to the greatest heat load and the greatest thermal wear. Dartiberhinaue the exhaust gas temperature is not reduced.
Nach einem anderen Vorschlag für das Erwärmen von Knüppeln wird ein doppelter Stoßofen vorgesehen mit einem Teil für kalten Einsatz und einem anderen Teil für warmen Einsatz und einem gemeinsamen Auslaß für die Knüppel zum Walzwerk (DT-AS 11 89 575)· Da beim Erwärmen von Knüppeln im Stoßofen in geringerem Maße zu befürchten ist, daß sich die Knüppel durch die Kraft des Drückers Ubereinanderschieben, gelingt es, die Walzenstraßenleistung zu erreichen, wenn der kalte Einsatz, der die längere Liegezeit erfordert, und der warme Einsatz nur durch den einen oder anderen Ofenteil geführt wird.According to another proposal for the heating of billets, a double pusher furnace is provided with one part for cold use and another part for warm use and a common outlet for the billets to the rolling mill (DT-AS 11 89 575) In the pusher furnace, there is less reason to fear that the billets will slide over one another due to the force of the pusher; it is possible to achieve the roller line performance when the cold insert, which requires the longer idle time, and the warm insert only through one or the other furnace part to be led.
Der gegenwärtigen Erfindung liegt die Aufgabe zugrunde, den Durchsatz eines Brammenstoßofens zu erhöhen und die Wirtschaftlichkeit der Brammenerwärmung zu verbessern.The present invention is based on the object of increasing the throughput of a slab pusher furnace and the economy to improve the slab heating.
Durch die Anordnung eines Vorofens, dessen Durchlaufachse außerhalb der des Stoßofens liegt, wird es möglich, für die Erwärmung der Brammen auf Walztemperatur den thermisch widerstandsfähigeren und wirtschaftlicheren Stoßofen vorzusehen. Dabei ist Platz für die Anordnung der Stoßvorrichtung in ausreichendem Maße vorhanden.By arranging a pre-furnace with its passage axis outside that of the pusher furnace, it becomes possible to use the more thermally resistant one for heating the slabs to rolling temperature and to provide more economical pusher-type furnaces. There is sufficient space for the arrangement of the impact device available.
809833/0503809833/0503
Außerdem 1st die Abgastemperatur beim Verlassen des Vorofens erheblich welter abgesenkt und der thermische Wirkungsgrad des Erwärmungsprozesses besser.In addition, the exhaust gas temperature is when leaving the furnace considerably lower and the thermal efficiency of the heating process is better.
Weitere sekundäre Vorteile können sich daraus ergeben, daß die Durchlaufachsen des Stoßofens und des Vorofens nicht zusammenfallen und beide Ofenteile durch eine übergabevorrichtung miteinander verbunden sind, so daß die Aufstellung des verhältnismäßig großen Aggregates den örtlichen Gegebenheiten leichter angepaßt werden kann.Other secondary advantages may result from the fact that the The flow axes of the pusher furnace and the pre-furnace do not coincide and both furnace parts are interconnected by a transfer device are connected, so that the installation of the relatively large aggregate the local conditions easier can be customized.
Nach den Maßnahmen der Unteransprüche wird die Erfindung in zweckmäßiger Weise fortgebildet«, So kann als Vorofen ebenfalls ein Stoßofen vorgesehen werden, so daß man zu niedrigeren Anschaffungskosten kommt. Wird darUberhinaus vorgesehen, den Stoßofen und die Vorofenkammer zueinander mit parallelen, um eine Ofenbreite versetzter Durchlaufachse anzuordnen, so können beide Stoßöfen aus gleichen Baueinheiten bestehen, was sich günstig auf die Reservehaltung auswirkt.According to the measures of the subclaims, the invention is developed in an expedient manner a pusher furnace can be provided, so that one comes to lower acquisition costs. The pusher furnace is also provided and the pre-furnace chamber to each other with parallel, to a furnace width offset passage axes, so both can Push ovens consist of the same structural units, which has a positive effect on the reserve.
Andererseits werden die Vorteile der Erfindung nicht schon dadurch beeinträchtigt, wenn die Anordnung der beiden öfen zueinander entsprechend weiterer Unteransprüche so erfolgt, daß die Bramme in Richtung ihrer Längserstreckung durch den Vorofen und in Richtung ihrer Breitenerstreckung durch den Stoßofen gedrückt wird. Für weniger empfehlenswert wird es angesehen, die Durchlaufachsen der beiden Ofen unter einem solchen Winkel zueinander anzuordnen, daß die übergabevorrichtung ein teilweises Drehen der Bramme bewirken muß«.On the other hand, the advantages of the invention are not thereby achieved impaired if the arrangement of the two ovens to each other is carried out in accordance with further dependent claims that the slab in the direction of its longitudinal extension through the pre-furnace and in the direction of its widthwise extension through the pusher furnace is pressed. It is considered less advisable to place the pass axes of the two ovens at such an angle to one another to arrange that the transfer device must cause a partial rotation of the slab «.
Sine Verbessrung des thermischen Wirkungsgrades ist dadurch möglich, daß die vom Stoßofen abgezogenen Abgase einem Rekuperator zugeführt werden, in dem die Brennerluft für den Stoßofen vorgewärmt wird. Dabei kann eine Abkühlung der Abgase erreicht werden, daß der Ofenzug in mehreren Stufen durch Exhauster erzeugt werdenIt is possible to improve the thermal efficiency by that the exhaust gases drawn off from the pusher furnace are fed to a recuperator in which the burner air for the pusher furnace is preheated will. The exhaust gases can be cooled by generating the furnace draft in several stages by exhauster
- 4 809833/0503 - 4 809833/0503
kann. Dies wiederum hat den Vorteil, daß der Ofenzug weniger stark von durch Undichtigkeiten angesaugter Falschluft beeinträchtigt wird.can. This in turn has the advantage that the furnace draft is less is strongly affected by false air sucked in through leaks.
Zwei AusfUhrungsbeispiele der Erfindung werden anhand der schematischen Patentzeichnung näher erläutert.Two AusfUhrungsbeispiele the invention are based on the schematic patent drawing explained in more detail.
Fig. 1 zeigt eine einfache Ofenanordnung in der Draufsicht, Fig. 2 zeigt eine Ofenanordnung perspektivisch.Fig. 1 shows a simple furnace arrangement in plan view, Fig. 2 shows a furnace arrangement in perspective.
Die Ofenanordnungen nach Bg. 1 und 2 bestehen aus dem Stoßofen und dem Vorofen 2. Die zu walzenden Brammen 3, 4, 5 werden kalt in den Vorofen 2 eingesetzt und kommen durch die Stoßeinrichtung 23, deren Wirkungsweise durch die Pfeile 6 angeordnet ist, zur gegenseitigen Anlage. Aus dem Vorofen gleiten die Brammen auf einem Rollgang 24, auf dem z.B. die Bramme 5 in Richtung des Pfeiles θ vor den Stoßofen transportiert wird. Nachdem die Bramme vor dem Stoßofen 1 ausgerichtet ist, wird sie durch die Stoßeinrichtung 9 dieses Ofens in Richtung der Pfeile 29 in den Stoßofen hineingedruckt und zur Anlage an die jeweils vorhergehende Bramme gebracht. Nach vollständiger Erwärmung und Durchwärmung verlassen die Brammen des Ofen 1 und werden von dem Rollgang mit der Transportrichtung entsprechend dem Pfeil 10 zum Walzwerk befördert.The furnace arrangements according to Vol. 1 and 2 consist of the pusher furnace and the pre-furnace 2. The slabs 3, 4, 5 to be rolled become cold inserted into the pre-furnace 2 and come through the pusher 23, whose mode of action is indicated by the arrows 6, to mutual investment. The slabs slide out of the pre-furnace on a roller table 24, on which, for example, the slab 5 in the direction of the Arrow θ is transported in front of the pusher furnace. After the slab is aligned in front of the pusher furnace 1, it is through the pusher 9 of this furnace is pressed into the pusher furnace in the direction of arrows 29 and is placed against the previous one Brought slab. After complete heating and soaking, the slabs leave the furnace 1 and are carried along by the roller table conveyed to the rolling mill in the direction of transport according to arrow 10.
Der Stoßofen 1 hat eine Brennerheizung 11. Den Brennern 11 wird Heizmittel und fUr die Verbrennung Heißluft durch die Leitungen 12, 13 zugeführt. Die Heizgase durchströmen den Stoßofen entgegen der Durchlaufrichtung der Brammen.The pusher furnace 1 has a burner heater 11. The burners 11 are Heating means and hot air for combustion are supplied through lines 12, 13. The heating gases flow through the pusher furnace the direction of passage of the slabs.
In der Anordnung nach Figur 1 werden die Abgase aus dem Stoßofen 1 durch den geschlossenen Rollgang 24 dem Vorofen 2 zugeführt und durch die Leitung 25 und den Rekuperator 26 über den Kamin 22 ins Freie geführt. Dabei kommt es im Rekuperator 26 zur Vorwärmung der Verbrennungsluft für die Ofenbrenner 11.In the arrangement according to FIG. 1, the exhaust gases from the pusher furnace 1 are fed to the pre-furnace 2 through the closed roller table 24 and passed through the line 25 and the recuperator 26 via the chimney 22 to the outside. It comes in the recuperator 26 to Preheating of the combustion air for the furnace burners 11.
- 5 809833/0503 - 5 809833/0503
In der Anordnung nach Fig. 2 werden die Abgase aus dem Stoßofen durch die Abgaskanäle 14, 15 abgezogen und durch die Rekuperatoren 16, 17 hindurchgeleitet. Durch die Rekuperatoren wird in einem getrennten Kanalsystem die Verbrennungsluft zur Vorwärmung durchgeleitet. Die Rekuperatoren sind in die Verbrennungsluftleitung 12, 13 eingeschaltet. Die Abgase kühlen sich in den Rekuperatoren 16, 17, so weit ab, daß in die Abgaskanäle 27, 28 die Exhaustoren 18, 19 eingeschaltet werden können, die für ein Absaugen der Abgase aus dem Stoßofen 1 sorgen, über Fortsetzungen der Abgaskanäle 27, 28, deren Teil mit 20, 21 bezeichnet ist, werden die Abgase dem Vorofen 2 zugeführt und aus diesem in bekannter Weise durch den Kamin 22 ins Freie geführt.In the arrangement according to FIG. 2, the exhaust gases are drawn off from the pusher furnace through the exhaust ducts 14, 15 and through the recuperators 16, 17 passed through. The recuperators use a separate duct system to preheat the combustion air passed through. The recuperators are switched on in the combustion air line 12, 13. The exhaust gases cool down in the recuperators 16, 17, so far that the Exhaustoren 18, 19 can be switched into the exhaust ducts 27, 28, which for a Ensure suction of the exhaust gases from the pusher furnace 1, via continuations the exhaust gas ducts 27, 28, the part of which is denoted by 20, 21, the exhaust gases are fed to the pre-furnace 2 and from this in a known manner Way out through the chimney 22 to the outside.
Bei beiden Ausführungsbeispielen richtet sich die Bemessung der Länge des Stoßofens 1 und des Vorofens 2 und die Befeuerung nach dem Durchsatz in Ansehung der optimalen Värmenutzung. Ss ist also im Rahmen des Vorschlages nicht erforderlich, die Länge des Stoßofens so zu wählen, daß gerade noch das Übereinanderschieben der Brammen durch die Stoßvorrichtung mit der Wirkungsrichtung der mit 29 bezeichneten Pfeile zu vermeiden. Jedoch bleibt diese Bedingungen eine Maximalbegrenzung der Stoßofenlänge. Diese Bedingung gilt selbstverständlich auch für den Vorofen 2, wenn dieser ebenfalls ein Stoßofen ist.In both exemplary embodiments, the dimensioning of the length of the pusher-type furnace 1 and of the pre-furnace 2 and the firing are based according to the throughput with regard to the optimal use of heat. Ss is therefore not required in the context of the proposal, the length of the pusher oven to be chosen so that they are just pushed over one another to avoid the slabs by the pusher with the direction of action of the arrows labeled 29. However these conditions remain a maximum limitation of the pusher furnace length. Of course, this condition also applies to the pre-furnace 2 if this is also a pusher furnace.
Der Vorteil einer derartigen Ofenanordnung wird deutlich, wenn man von einer Anordnung mit nur einem Stoßofen, der nicht den geforderten und vom Walzwerk erfüllten Durchsatz erreicht, ausgeht. Die Erhöhung des Durchsatzes der Ofenanordnung wird durch Hinzufügung eines Vorofens bewirkt. Bis zu gewissen Durchsatzerhöhungen ist dafür lediglich die Investition der Vorofenkammer aufzuwenden. Die teilweise Anwärmung der Brammen auf mehrere 100° wird vollständig oder weitgehend aus der fühlbaren Wärme der Abgase gedeckt. Eine weitere Steigerung des Durchsatzes ist möglich, wenn der Vorofen mit einer vergleichsweisen kleinen Zusatzheizung ausgestattet wird.The advantage of such a furnace arrangement becomes clear when one assumes an arrangement with only one pusher furnace which does not achieve the throughput required and fulfilled by the rolling mill. The increase in the throughput of the furnace assembly is effected by adding a pre-furnace. Up to certain increases in throughput all you have to do is spend the investment in the furnace chamber. The partial heating of the slabs to several 100 ° is completely or largely covered by the sensible heat of the exhaust gases. A further increase in throughput is possible, if the pre-furnace is equipped with a comparatively small additional heater.
- Patentansprüche -- patent claims -
Claims (9)
ORIGINAL INSPECTED809833/0503
ORIGINAL INSPECTED
den oder die Rekuperatoren (16, 17) durch nachgeschaltete Exhauster (18, 19) führbar sind, bevor sie in den Vorofen (2)
eintreten.7. Furnace arrangement according to claim 6, characterized in that the exhaust gases from the pusher furnace (1) after being passed through
the recuperator or recuperators (16, 17) can be guided through downstream exhauster (18, 19) before they enter the front furnace (2)
enter.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772706345 DE2706345A1 (en) | 1977-02-11 | 1977-02-11 | OVEN ARRANGEMENT FOR HEATING SLABS |
AT4778A AT361962B (en) | 1977-02-11 | 1978-01-04 | OVEN ARRANGEMENT FOR HEATING SLABS |
IT19272/78A IT1091888B (en) | 1977-02-11 | 1978-01-16 | OVEN DEVICE FOR BLUMI HEATING |
FR7802760A FR2380518A1 (en) | 1977-02-11 | 1978-02-01 | MULTI-OVEN INSTALLATION FOR REHEATING THE SLABS |
GB5110/78A GB1600441A (en) | 1977-02-11 | 1978-02-08 | Furnace arrangement for the heating of slabs |
JP1401278A JPS53100113A (en) | 1977-02-11 | 1978-02-09 | Arrangement structure of bloom heating furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772706345 DE2706345A1 (en) | 1977-02-11 | 1977-02-11 | OVEN ARRANGEMENT FOR HEATING SLABS |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2706345A1 true DE2706345A1 (en) | 1978-08-17 |
Family
ID=6001238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772706345 Pending DE2706345A1 (en) | 1977-02-11 | 1977-02-11 | OVEN ARRANGEMENT FOR HEATING SLABS |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS53100113A (en) |
AT (1) | AT361962B (en) |
DE (1) | DE2706345A1 (en) |
FR (1) | FR2380518A1 (en) |
GB (1) | GB1600441A (en) |
IT (1) | IT1091888B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2846818A1 (en) * | 1978-06-21 | 1980-05-08 | Itoh Iron & Steel Works Co Ltd | METHOD FOR THE HEAT TREATMENT OF COLD STEEL BLOCKS AND / OR HOT STEEL BLOCKS AND DEVICE FOR CARRYING OUT THE METHOD |
EP0165586A2 (en) * | 1984-06-20 | 1985-12-27 | Kortec Ag | Installation with a furnace for strand pieces cut to measure in a continuous-casting plant |
US4614495A (en) * | 1984-09-17 | 1986-09-30 | Kabushiki Kaisha Itoh Seitetsusho | Apparatus for soaking steel pieces |
WO2010095032A1 (en) * | 2009-02-23 | 2010-08-26 | Extrutec Gmbh | Pre-heating device for objects, in particular aluminum extrusions, rods or bolts and a system having said pre-heating device |
WO2010099929A1 (en) * | 2009-03-02 | 2010-09-10 | Sms Siemag Ag | Method and installation for producing and/or processing a slab or a strip of metallic material |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6039134B2 (en) * | 1981-12-25 | 1985-09-04 | 株式会社伊藤製鉄所 | Heat retention device for hot steel billet |
AT381790B (en) * | 1985-04-04 | 1986-11-25 | Voest Alpine Ag | PLANT FOR WARMING UP STEEL MATERIAL TO TEMPERATURE |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1189575B (en) * | 1960-08-16 | 1965-03-25 | Ofag Ofenbau Ges M B H | Furnace arrangement for heating and reheating of sticks |
DE1807562A1 (en) * | 1968-11-07 | 1970-06-04 | Didier Werke Ag | Furnaces used for heating up slabs of iron |
DE2256978B2 (en) * | 1972-11-21 | 1977-12-29 | Elhaus, Friedrich Wilhelm, Dipl.-Ing, 5600 Wuppertal; Prolizenz AG, Chur (Schweiz) | PROCESS AND DEVICE FOR CONTINUOUS HIGH ANNEALING OF BARS, RODS, TUBES, ORD. MADE OF NON-FERROUS METAL |
DE2031897C2 (en) * | 1970-06-27 | 1982-01-14 | Degussa Ag, 6000 Frankfurt | Impact furnace for powder metallurgical sintering under protective gas |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1355407A (en) * | 1920-01-02 | 1920-10-12 | American Dressler Tunnel Kilns | Continuous tunnel-kiln |
DE2363476C2 (en) * | 1973-12-20 | 1975-06-26 | August Thyssen-Huette Ag, 4100 Duisburg | StoBofen system for heating steel slabs such as transformer steel up to a rolling temperature of around 1400 degrees C. |
-
1977
- 1977-02-11 DE DE19772706345 patent/DE2706345A1/en active Pending
-
1978
- 1978-01-04 AT AT4778A patent/AT361962B/en not_active IP Right Cessation
- 1978-01-16 IT IT19272/78A patent/IT1091888B/en active
- 1978-02-01 FR FR7802760A patent/FR2380518A1/en active Granted
- 1978-02-08 GB GB5110/78A patent/GB1600441A/en not_active Expired
- 1978-02-09 JP JP1401278A patent/JPS53100113A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1189575B (en) * | 1960-08-16 | 1965-03-25 | Ofag Ofenbau Ges M B H | Furnace arrangement for heating and reheating of sticks |
DE1807562A1 (en) * | 1968-11-07 | 1970-06-04 | Didier Werke Ag | Furnaces used for heating up slabs of iron |
DE2031897C2 (en) * | 1970-06-27 | 1982-01-14 | Degussa Ag, 6000 Frankfurt | Impact furnace for powder metallurgical sintering under protective gas |
DE2256978B2 (en) * | 1972-11-21 | 1977-12-29 | Elhaus, Friedrich Wilhelm, Dipl.-Ing, 5600 Wuppertal; Prolizenz AG, Chur (Schweiz) | PROCESS AND DEVICE FOR CONTINUOUS HIGH ANNEALING OF BARS, RODS, TUBES, ORD. MADE OF NON-FERROUS METAL |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2846818A1 (en) * | 1978-06-21 | 1980-05-08 | Itoh Iron & Steel Works Co Ltd | METHOD FOR THE HEAT TREATMENT OF COLD STEEL BLOCKS AND / OR HOT STEEL BLOCKS AND DEVICE FOR CARRYING OUT THE METHOD |
US4311454A (en) * | 1978-06-21 | 1982-01-19 | Itoh Iron & Steel Works Co. Ltd. | Method of soaking steel pieces |
EP0165586A2 (en) * | 1984-06-20 | 1985-12-27 | Kortec Ag | Installation with a furnace for strand pieces cut to measure in a continuous-casting plant |
EP0165586A3 (en) * | 1984-06-20 | 1986-09-03 | Kortec Ag | Installation with a furnace for strand pieces cut to measure in a continuous-casting plant |
US4614495A (en) * | 1984-09-17 | 1986-09-30 | Kabushiki Kaisha Itoh Seitetsusho | Apparatus for soaking steel pieces |
WO2010095032A1 (en) * | 2009-02-23 | 2010-08-26 | Extrutec Gmbh | Pre-heating device for objects, in particular aluminum extrusions, rods or bolts and a system having said pre-heating device |
WO2010099929A1 (en) * | 2009-03-02 | 2010-09-10 | Sms Siemag Ag | Method and installation for producing and/or processing a slab or a strip of metallic material |
Also Published As
Publication number | Publication date |
---|---|
GB1600441A (en) | 1981-10-14 |
JPS53100113A (en) | 1978-09-01 |
FR2380518B1 (en) | 1982-11-12 |
IT1091888B (en) | 1985-07-06 |
AT361962B (en) | 1981-04-10 |
IT7819272A0 (en) | 1978-01-16 |
FR2380518A1 (en) | 1978-09-08 |
ATA4778A (en) | 1980-09-15 |
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Owner name: KLAMMER, HELMUTH, DIPL.-ING., 4330 MUELHEIM, DE |
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8127 | New person/name/address of the applicant |
Owner name: DIDIER ENGINEERING GMBH, 4300 ESSEN, DE |