[go: up one dir, main page]

EP0994972A1 - Steelworks converter with cone cooling system - Google Patents

Steelworks converter with cone cooling system

Info

Publication number
EP0994972A1
EP0994972A1 EP98936179A EP98936179A EP0994972A1 EP 0994972 A1 EP0994972 A1 EP 0994972A1 EP 98936179 A EP98936179 A EP 98936179A EP 98936179 A EP98936179 A EP 98936179A EP 0994972 A1 EP0994972 A1 EP 0994972A1
Authority
EP
European Patent Office
Prior art keywords
converter according
collector
cooling medium
steel plant
hat
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
EP98936179A
Other languages
German (de)
French (fr)
Other versions
EP0994972B1 (en
Inventor
Günter Schmitz
Marcel Fasswald
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 EP0994972A1 publication Critical patent/EP0994972A1/en
Application granted granted Critical
Publication of EP0994972B1 publication Critical patent/EP0994972B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F27D9/00—Cooling of furnaces or of charges therein
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4646—Cooling arrangements
    • 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
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/0018—Cooling of furnaces the cooling medium passing through a pattern of tubes
    • F27D2009/0021—Cooling of furnaces the cooling medium passing through a pattern of tubes with the parallel tube parts close to each other, e.g. a serpentine
    • F27D2009/0027—Cooling of furnaces the cooling medium passing through a pattern of tubes with the parallel tube parts close to each other, e.g. a serpentine linked by elements

Definitions

  • the invention relates to a steelworks converter, on the vessel hat of which a hat cooling is provided, which consists of a plurality of coolant guides which open into channel-like collectors, at least one cooling medium inlet and outlet being provided.
  • DE 33 30 237 C2 discloses a metallurgical reaction vessel, in particular a steelworks converter, the vessel hat of which is provided with a so-called hat cooling.
  • the hat cooling consists of meandering pipes, with several - in the present example, three pipes routed in parallel - conveying the coolant in the same direction.
  • the individual essential pipes that run parallel to the central axis of the converter end in gutter sections on the top and bottom sides.
  • a vessel hat cooling system which consists of a pipeline which is guided in a spiral around the converter hat.
  • the invention has therefore set itself the goal of creating a drain for the coolant of the hat cooling with which the coolant in simple constructional means can be drained from the cooling system at a time without damaging the cooling elements due to excessive pressure due to impermissible vapor formation.
  • a collecting pipe is provided in the area of the base of the cooling medium collector.
  • the collector pipe is connected to the collector in such a way that the cooling medium reaches the collector through openings or via connecting pipes, the collector pipe having at least one closable drain.
  • This arrangement according to the invention enables the coolant to drain out of the cooling elements of the hat cooling system particularly quickly in emergency situations.
  • Hat cooling systems usually consist of meandering cooling elements. Due to this arrangement, emptying the cooling system is complex and takes a relatively long time, since for fluidic reasons the individual segments are not connected to one another or are only connected via connecting pipes which are deliberately kept small in diameter. However, the long-lasting draining of the coolant involves the risk of steam formation, which can lead to significant damage, especially in hot converters.
  • the collecting line proposed according to the invention forms a self-contained ring on which any number of outlets are provided.
  • the ring can be shut off by fittings in ring sections, so that there is the possibility of also individual segments in an emergency - e.g. in the event of damage - quickly let it idle alone.
  • openings are provided as slots or bores through which the coolant enters the header.
  • the entire open area of the openings is designed in a size which corresponds to up to 5 times the outlet area of the associated cooling medium outlet.
  • the pipe sections connecting the individual converter hat segments are provided with compensators, so that stresses on the hat as well as on the collecting line are avoided.
  • the collecting pipe is routed around the hat as a ring line outside the collector and connected to the collector via connecting pipes. In this embodiment, it is proposed to run a partial flow through the collecting pipe in order to provide fresh water here during operation.
  • Figure 1 is a schematic of the hat cooling
  • FIG. 1 a section of the converter vessel 11, namely the converter hat 12 including the end flange 15, is shown with segments 13 which have tubes 21 guided in a meandering manner.
  • the tubes 21 open at the top in a header 23 and at the bottom in a header 22.
  • a header 24 is provided in the header 22, in FIG. 1
  • this manifold 24 is attached as a half pipe on the converter hat 12, lying within the collector 22. 1 a to 1 c, an outlet 27 is attached to the collecting tube 24 and can be shut off by shut-off elements 42.
  • the collector pipe 24 provided in the collector 22 is connected between the segments via pipe sections 34.
  • the collecting pipe 24 shown in FIG. 1 b is arranged outside the outer wall 28 and is connected to the collector 22 via connecting pipes 37.
  • FIGS. 1a and 1c show a section through the converter hat 12 with a tube 21, the collector 22 and the inner collecting tube 24.
  • the collecting pipe 24 is located outside the collector 22, the collecting pipe 24 being connected to the collector 22 via connecting pipes 37.
  • a cooling medium outlet 26 is connected to the collector 22.
  • a drain 27 is provided on both the internal and external manifolds 24 in FIGS. 1 a to 1 c, which can be shut off by a shut-off element 42.
  • At least one open vent (29) is provided in the header collector (23).
  • FIG. 2 shows in detail the collecting pipe 24, which is spaced in the base-side collector 22 at approximately the same distance from the wall 14 of the converter hat 12 and from the bottom of the outer wall 28 of the collector 22.
  • the drain 27 is connected to the collecting pipe 24.
  • a section through the collector 22 is shown with a collecting pipe 24 which has openings 31, in the lower part of the picture in the form of bores 33 and in the middle of FIG. 2 in the form of slots 32.
  • the slots are arranged so that the flow of the cooling medium W is resisted on the way to the interior of the collecting tube 24, here as an opening wedge in the direction of the tube interior.
  • the lower part of the picture shows pipe pieces 34 which are connected to the collector 22 via compensators 35. Furthermore, the pipe pieces 34 can be shut off by a shut-off device 41, here in the form of a three-way valve which is connected to the
  • Coolant outlet 26 is connected.
  • FIG. 3 shows the diagram of the segments 13 with the meandering tubes 21, which are connected to the header 23 on the head side and to the header 22 on the foot side.
  • the collector 23 is connected to the cooling medium supply 25 and to the cooling medium outlet 26 and is also connected to the collecting pipe 24.
  • the manifold 24 is connected to a water supply 36.
  • the cooling medium supply 25 and the water supply 36 are via a changeover valve
  • the cooling medium supply 25 with a pump 45 for the main flow that is to say about 90% of the amount of water
  • Water supply 36 with a pump 46 for the secondary flow that is about 10% of the amount of water, and the cooling medium outlet 26 after its idling is used for ventilation of the other segments via the connecting piece 43.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Processing Of Solid Wastes (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Furnace Details (AREA)

Abstract

A steelworks converter has a cone cooling system with sinuous ducts for carrying the cooling medium which open into at least one groove-like collector in the top and bottom regions of the converter head, as well as at least one cooling medium supply and discharge. According to the invention, a collecting pipe (24) is arranged in the region of the lower collector (22), the collecting pipe (24) is spaced apart from at least one of the side walls of the lower collector, the collecting pipe (24) has at least one closable discharge (27) and is in communication with the lower collector (22) so that the cooling medium (W) inside the collector (22) can flow into the collecting pipe (24).

Description

Stahlwerkskonverter mit HutkühlungSteel mill converter with hat cooling
Beschreibungdescription
Die Erfindung betrifft einen Stahlwerkskonverter, an dessen Gefäßhut eine Hutkühlung vorgesehen ist, die aus eine Vielzahl von Kühlmittelführungen besteht, die in rinnenartige Sammler münden, wobei mindestens ein Kühlmediumzu- sowie -ablauf vorgesehen ist.The invention relates to a steelworks converter, on the vessel hat of which a hat cooling is provided, which consists of a plurality of coolant guides which open into channel-like collectors, at least one cooling medium inlet and outlet being provided.
Aus DE 33 30 237 C2 ist ein metallurgisches Reaktionsgefäß, insbesondere ein Stahlwerkskonverter bekannt, dessen Gefäßhut mit einer sogenannten Hutkühlung versehen ist. Die Hutkühlung besteht dabei aus mäanderförmig geführten Rohren, wobei regelmäßig mehrere - im vorliegenden Beispiel regelmäßig drei Rohre parallel geführt das Kühlmittel in die gleiche Richtung befördern. Die einzelnen wesentlichen parallel zur Zentralachse des Konverters geführten Rohre enden köpf- und fußseitig in Rinnenstücken.DE 33 30 237 C2 discloses a metallurgical reaction vessel, in particular a steelworks converter, the vessel hat of which is provided with a so-called hat cooling. The hat cooling consists of meandering pipes, with several - in the present example, three pipes routed in parallel - conveying the coolant in the same direction. The individual essential pipes that run parallel to the central axis of the converter end in gutter sections on the top and bottom sides.
Aus DE 30 48 199 C2 ist eine Gefäßhutkühlung bekannt, die aus einer spπalförmig um den Konverterhut geführten Rohrleitung besteht.From DE 30 48 199 C2 a vessel hat cooling system is known which consists of a pipeline which is guided in a spiral around the converter hat.
In bestimmten Betriebsfällen ist es erforderlich, die Hutkühlung schnellstmöglichst leerlaufen zu lassen. Während des Konverterbetriebes können größereIn certain operating cases, it is necessary to let the hat cooling run dry as quickly as possible. Larger ones can be used during converter operation
Beschädigungen an den Kühlelementen des Konverterhutes auftreten und größere Mengen Wasser austreten. Unter Umständen kann hierbei das Konvertergefäß nicht mehr gekippt werden, um ein Eindringen von Kühlwasser in den Bereich der Stahlpfanne oder der Schlackenpfanne zu verhindern.Damage to the cooling elements of the converter hat occurs and large amounts of water leak out. Under certain circumstances, the converter vessel can no longer be tilted to prevent cooling water from penetrating into the area of the steel pan or the slag pan.
Irgendwelche Maßnahmen zum kurzfristigen Kühlmittelablassen sind aus den o.g. Schriften nicht bekannt.Any measures for short-term coolant drainage are from the above. Writings not known.
Die Erfindung hat sich daher das Ziel gesetzt, mit einfachen konstruktiven Mitteln einen Ablauf für das Kühlmittel der Hutkühlung zu schaffen, mit der das Kühlmittel in einer Zeit aus dem Kühlsystem ablassoar ist, ohne die Kühlelemente durch zu hohen Druck infolge unzulässiger Dampfbildung zu beschädigen.The invention has therefore set itself the goal of creating a drain for the coolant of the hat cooling with which the coolant in simple constructional means can be drained from the cooling system at a time without damaging the cooling elements due to excessive pressure due to impermissible vapor formation.
Die Erfindung erreicht dieses Ziel durch die kennzeichnenden Merkmale des Anspruchs 1. Vorteilhafte Weiterbildungen sind in den Unteransprüchen angegeben.The invention achieves this aim by the characterizing features of claim 1. Advantageous further developments are specified in the subclaims.
Erfindungsgemäß wird im Bereich des fußseitigen Sammlers des Kühlmediums ein Sammelrohr vorgesehen. Das Sammelrohr steht mit dem Sammler in der Weise in Verbindung, daß das Kühlmedium über Öffnungen oder über Verbindungsrohre aus dem Sammler in dieses gelangt, wobei das Sammelrohr mindestens einen verschließbaren Ablaß besitzt.According to the invention, a collecting pipe is provided in the area of the base of the cooling medium collector. The collector pipe is connected to the collector in such a way that the cooling medium reaches the collector through openings or via connecting pipes, the collector pipe having at least one closable drain.
Durch diese erfindungsgemäße Anordnung ist ein schneller Ablauf des Kühlmittels aus den Kühlelementen der Hutkühlung gerade in Notsituationen möglich.This arrangement according to the invention enables the coolant to drain out of the cooling elements of the hat cooling system particularly quickly in emergency situations.
Hutkühlungen bestehen üblicherweise aus mäanderförmig angeordneten Kühlelementen. Durch diese Anordnung ist ein Entleeren des Kühlsystems aufwendig und nimmt relativ lange Zeit in Anspruch, da aus strömungstechnischen Gründen die einzelnen Segmente nicht oder nur über einen bewußt gering gehaltenen Durchmesser aufweisende Verbindungsrohre miteinander verbunden sind. Das lang andauernde Abfließen des Kühlmittels beinhaltet aber die Gefahr einer Dampfbildung, was gerade bei heißen Konvertern zu deutlichen Beschädigungen führen kann.Hat cooling systems usually consist of meandering cooling elements. Due to this arrangement, emptying the cooling system is complex and takes a relatively long time, since for fluidic reasons the individual segments are not connected to one another or are only connected via connecting pipes which are deliberately kept small in diameter. However, the long-lasting draining of the coolant involves the risk of steam formation, which can lead to significant damage, especially in hot converters.
Die erfindungsgemäß vorgeschlagene Sammelleitung bildet ein in sich geschlossenen Ring, an dem beliebig viele Ablässe vorgesehen sind. In einer vorteilhaftenThe collecting line proposed according to the invention forms a self-contained ring on which any number of outlets are provided. In an advantageous
Weiterbildung wird der Ring über Armaturen in Ring-Abschnitten absperrbar, so daß die Möglichkeit besteht, auch einzelne Segmente im Notfall - z.B. bei Beschädigung - schnell alleine Leerlaufen zu lassen.Further training, the ring can be shut off by fittings in ring sections, so that there is the possibility of also individual segments in an emergency - e.g. in the event of damage - quickly let it idle alone.
Bei der in dem Sammler angeordneten Sammelleitung sind als Schlitz oder als Bohrungen ausgestaltete Öffnungen vorgesehen, durch die das Kühlmittel in das Sammelrohr eintritt. Um einen ausreichend großen Austausch zwischen dem Sammler bei gleichzeitiger Auffrischung des im Sammelrohr befindlichen Wassers zu gewährleisten, ist die gesamte Freifläche der Öffnungen in einer Größe ausgestaltet, die bis zum 5-fachen der Austrittsfläche des zugehörigen Kühlmedienablaufs entspricht.In the header arranged in the header, openings are provided as slots or bores through which the coolant enters the header. To ensure a sufficiently large exchange between the collector To ensure that the water in the collecting pipe is refreshed at the same time, the entire open area of the openings is designed in a size which corresponds to up to 5 times the outlet area of the associated cooling medium outlet.
In einer weiteren vorteilhaften Ausgestaltung sind die die einzelnen Konverterhutsegmente verbindenden Rohrstücke mit Kompensatoren versehen, so daß Spannungen sowohl am Hut wie auch an der Sammelleitung vermieden werden.In a further advantageous embodiment, the pipe sections connecting the individual converter hat segments are provided with compensators, so that stresses on the hat as well as on the collecting line are avoided.
Weiterhin wird vorgeschlagen, diese die Konverterhutsegmente verbindendenIt is also proposed that these connect the converter hat segments
Rohrstücke als T-Stücke auszugestalten und mit Absperrorganen zu versehen. Auf einfache Weise läßt sich hier ein beliebiges Ablassprogramm, soweit in den einzelnen Segmenten Entlüftungen vorgesehen sind, des Sammelrohres einstellen.Design pipe sections as T-pieces and to provide shut-off devices. Any drain program of the collector pipe can be set here in a simple manner, provided that vents are provided in the individual segments.
In einer Ausgestaltung ist das Sammelrohr als Ringleitung außerhalb des Sammlers um den Hut herumgeführt und über Verbindungsrohre mit dem Sammler verbunden. Bei dieser Ausgestaltung wird vorgeschlagen, einen Teilstrom durch das Sammelrohr zu führen, um hier für Frischwasser während des Betriebes zu sorgen.In one embodiment, the collecting pipe is routed around the hat as a ring line outside the collector and connected to the collector via connecting pipes. In this embodiment, it is proposed to run a partial flow through the collecting pipe in order to provide fresh water here during operation.
Ein Beispiel der Erfindung ist in der beigefügten Zeichnung dargelegt. Dabei zeigen dieAn example of the invention is set out in the accompanying drawing. The show
Figur 1 ein Schema der HutkühlungFigure 1 is a schematic of the hat cooling
Figur 2 Detail der Sammelleitung und des SammlersFigure 2 Detail of the manifold and the collector
Figur 3 Schaltbild der EntwässerungFigure 3 Circuit diagram of the drainage
In der Figur 1 ist in der Mitte ein Ausschnitt des Konvertergefäßes 1 1 , und zwar des Konverterhutes 12 einschließlich des Abschlußflansches 15 dargestellt mit Segmenten 13, die mäanderförmig geführte Rohre 21 besitzen. Die Rohre 21 münden kopfseitig in einem Sammler 23 und fußseitig in einem Sammler 22. In Figur 1 a ist im Sammler 22 ein Sammelrohr 24 vorgesehen, in Figur 1 b ist dieses Sammelrohr 24 außerhalb desIn the middle of FIG. 1, a section of the converter vessel 11, namely the converter hat 12 including the end flange 15, is shown with segments 13 which have tubes 21 guided in a meandering manner. The tubes 21 open at the top in a header 23 and at the bottom in a header 22. In FIG. 1 a, a header 24 is provided in the header 22, in FIG
Sammlers 22 angeordnet und in Figur 1 c ist dieses Sammelrohr 24 als Halbrohr auf dem Konverterhut 12, innerhalb des Sammlers 22 liegend, angebracht. An das Sammelrohr 24 ist in 1 a bis 1 c ein Ablaß 27 angebracht, der durch Absperrorgane 42 absperrbar ist. Das im Sammler 22 vorgesehene Sammelrohr 24 ist zwischen den Segmenten über Rohrstücke 34 verbunden. Das in Figur 1 b dargestellte außerhalb der Außenwand 28 angeordnete Sammelrohr 24 ist über Verbindungsrohre 37 mit dem Sammler 22 verbunden.Collector 22 arranged and in Figure 1 c, this manifold 24 is attached as a half pipe on the converter hat 12, lying within the collector 22. 1 a to 1 c, an outlet 27 is attached to the collecting tube 24 and can be shut off by shut-off elements 42. The collector pipe 24 provided in the collector 22 is connected between the segments via pipe sections 34. The collecting pipe 24 shown in FIG. 1 b is arranged outside the outer wall 28 and is connected to the collector 22 via connecting pipes 37.
In den Figuren 1a und 1c ist ein Schnitt durch den Konverterhut 12 mit einem Rohr 21 , dem Sammler 22 und dem innenliegenden Sammelrohr 24 dargestellt. In Figur 1 b liegt das Sammelrohr 24 außerhalb des Sammlers 22, wobei das Sammelrohr 24 über Verbindungsrohre 37 mit dem Sammler 22 verbunden ist. Weiterhin ist an dem Sammler 22 ein Kühlmedienablauf 26 angeschlossen. An den sowohl iπnenliegenden wie außenliegenden Sammelrohren 24 in den Figuren 1 a bis 1 c ist ein Ablaß 27 vorgesehen, der durch ein Absperrorgan 42 absperrbar ist. In dem kopfseitigen Sammler (23) ist mindestens eine offenbare Entlüftung (29) vorgesehen.FIGS. 1a and 1c show a section through the converter hat 12 with a tube 21, the collector 22 and the inner collecting tube 24. In FIG. 1 b, the collecting pipe 24 is located outside the collector 22, the collecting pipe 24 being connected to the collector 22 via connecting pipes 37. Furthermore, a cooling medium outlet 26 is connected to the collector 22. A drain 27 is provided on both the internal and external manifolds 24 in FIGS. 1 a to 1 c, which can be shut off by a shut-off element 42. At least one open vent (29) is provided in the header collector (23).
In der Figur 2 ist im Detail das Sammelrohr 24 dargestellt, welches im fußseitigen Sammler 22 mit etwa gleicher Distanz zur Wandung 14 des Konverterhutes 12 und zum Grund der Außenwand 28 des Sammlers 22 beabstandet ist. Am Sammelrohr 24 ist der Ablaß 27 angeschlossen.FIG. 2 shows in detail the collecting pipe 24, which is spaced in the base-side collector 22 at approximately the same distance from the wall 14 of the converter hat 12 and from the bottom of the outer wall 28 of the collector 22. The drain 27 is connected to the collecting pipe 24.
Im unteren Teil des Bildes ist ein Schnitt durch den Sammler 22 dargestellt mit einem Sammelrohr 24, das Öffnungen 31 besitzt, und zwar im unteren Teil des Bildes in Form von Bohrungen 33 und in der Mitte der Figur 2 in Form von Schlitzen 32. Die Schlitze sind dabei so angeordnet, daß der Strömung des Kühlmediums W auf dem Weg zum Innenraum des Sammelrohres 24 ein Widerstand entgegengebracht wird, hier als sich öffnender Keil in Richtung Rohrinneres.In the lower part of the picture a section through the collector 22 is shown with a collecting pipe 24 which has openings 31, in the lower part of the picture in the form of bores 33 and in the middle of FIG. 2 in the form of slots 32. The slots are arranged so that the flow of the cooling medium W is resisted on the way to the interior of the collecting tube 24, here as an opening wedge in the direction of the tube interior.
Weiterhin zeigt der untere Teil des Bildes Rohrstücke 34, die über Kompensatoren 35 mit dem Sammler 22 verbunden sind. Weiterhin sind die Rohrstücke 34 durch ein Absperrorgan 41 absperrbar, hier in Form eines Dreiwegehahnes, der an demFurthermore, the lower part of the picture shows pipe pieces 34 which are connected to the collector 22 via compensators 35. Furthermore, the pipe pieces 34 can be shut off by a shut-off device 41, here in the form of a three-way valve which is connected to the
Kühlmedienablauf 26 angeschlossen ist.Coolant outlet 26 is connected.
Figur 3 zeigt das Schema der Segmente 13 mit den meanderförmig geführten Rohren 21 , die kopfseitig an dem Sammler 23 und fußseitig an dem Sammler 22 angeschlossen sind. Der Sammler 23 ist an die Kühlmedienzufuhr 25 und an dem Kühlmedienablauf 26 angeschlossen und darüber hinaus mit dem Sammelrohr 24 verbunden. Das Sammelrohr 24 steht mit einer Wasserversorgung 36 in Verbindung.FIG. 3 shows the diagram of the segments 13 with the meandering tubes 21, which are connected to the header 23 on the head side and to the header 22 on the foot side. The collector 23 is connected to the cooling medium supply 25 and to the cooling medium outlet 26 and is also connected to the collecting pipe 24. The manifold 24 is connected to a water supply 36.
Die Kühlmedienzufuhr 25 und die Wasserversorgung 36 sind über ein UmschaltventilThe cooling medium supply 25 and the water supply 36 are via a changeover valve
51 umschaltbar. Hierbei wird die Richtung des über die Kühlmedienzufuhr 25 und die Wasserversorgung 36 zugeführte Strömungsrichtung umgekehrt.51 switchable. Here, the direction of the flow direction supplied via the cooling medium supply 25 and the water supply 36 is reversed.
Im vorliegenden Schemabild ist weiterhin noch dargestellt, daß die Kühlmedienzufuhr 25 mit einer Pumpe 45 für den Hauptstrom, also etwa 90 % der Wassermenge, dieIn the present diagram it is also shown that the cooling medium supply 25 with a pump 45 for the main flow, that is to say about 90% of the amount of water
Wasserversorgung 36 mit einer Pumpe 46 für den Nebenstrom, also etwa 10 % der Wassermenge, und der Kühlmedienablauf 26 nach seinem Leerlauf zur Belüftung der anderen Segmente über das Verbindungsstück 43 dient. Water supply 36 with a pump 46 for the secondary flow, that is about 10% of the amount of water, and the cooling medium outlet 26 after its idling is used for ventilation of the other segments via the connecting piece 43.
PositionslistePosition list
StahlwerkskonverterSteel mill converter
11 Konvertergefäß 12 Konverterhut11 converter vessel 12 converter hat
13 Segment13 segment
14 Wandung Hutsegment14 Hat segment wall
15 Flansch15 flange
KühleinrichtungCooling device
21 Rohr (mäanderförmig)21 tube (meandering)
22 Sammler fußseitig22 collectors on the bottom
23 Sammler kopfseitig23 headers
24 Sammlerrohr 25 Kühlmedienzufuhr24 collector pipe 25 coolant supply
26 Kühlmedienablauf26 Coolant outlet
27 Ablaß27 indulgence
28 Außenwand28 outer wall
29 Entlüftung29 ventilation
Verbindungenlinks
31 Öffnung31 opening
32 Schlitz32 slot
33 Bohrung33 hole
34 Rohrstück34 pipe section
35 Kompensator35 compensator
36 Wasserversorgung36 water supply
37 Verbindungsrohr37 connecting pipe
ArmaturenFittings
41 ,42 Absperrorgan41, 42 shut-off device
43 Verbindungsstück43 connector
44 Auffangbehälter44 collecting container
45 Pumpe Hauptzufuhr 46 Pumpe Nebenzufuhr w Kühlmittel45 Main feed pump 46 Secondary feed pump w coolant
AF Freie Fläche ÖffnungenA F Free area openings
AA Austrittsfläche a DistanzA A exit surface a distance
UmschalteinrichtungSwitching device
51 Umschaltventil 51 changeover valve

Claims

Patentansprüche claims
1. Stahlwerkskonverter an dessen Gefäßhut eine Hutkühlung vorgesehen ist, mit mäanderförmig angeordneten Leitungen zur Führung des Kühlmediums, die am Kopf- und Fußbereich des Konverterkopfes in mindestens einem rinnenartigen1. Steel mill converter on the vessel hat of which a hat cooling is provided, with meandering lines arranged for guiding the cooling medium, which at the head and foot region of the converter head in at least one channel-like
Sammler münden, wobei mindestens ein Kühlmedienzu- sowie -ablauf für dasCollectors flow, with at least one cooling medium inlet and outlet for the
Kühlmedium vorgesehen ist, dadurch gekennzeichnet, daß im Bereich des fußseitigen Sammlers (22) ein Sammelrohr (24 )vorgesehen ist, daß das Sammelrohr (24) zumindestens einer der Seitenwände des fußseitigenCooling medium is provided, characterized in that a collecting tube (24) is provided in the area of the base-side header (22), that the header tube (24) has at least one of the side walls of the base-side
Sammlers beabstandet ist, daß das Sammelrohr (24) mindestens einen verschließbaren Ablass (27) aufweist und mit dem fußseitigen Sammler (22) in der Weise in Verbindung steht, daß das in dem Sammler (22) befindliche Kühlmittel (W) in das Rohrinnere des Sammelrohrs (24) führbar ist.Collector is spaced that the manifold (24) has at least one closable drain (27) and communicates with the bottom-side collector (22) in such a way that the coolant (W) located in the collector (22) into the inside of the pipe Collecting tube (24) is feasible.
2. Stahlwerkskonverter nach Anspruch 1 , dadurch gekennzeichnet, daß das Sammelrohr (24) zu beiden Seiten und dem Grund des fußseitigen2. Steel plant converter according to claim 1, characterized in that the collecting tube (24) on both sides and the bottom of the foot side
Sammlers (22) in etwa gleicher Distanz (a) beabstandet angeordnet ist, und daß in der Wandung des Sammelrohres (24) Öffnungen (31 ) eingebracht sind, über die das Kühlmittel (W) vom fußseitigen Sammler (22) in das Rohrinnere des Sammelrohres (24) führbar ist.Collector (22) is arranged at approximately the same distance (a), and that in the wall of the collecting tube (24) openings (31) are introduced through which the coolant (W) from the foot-side header (22) into the tube inside the collecting tube (24) is feasible.
3. Stahlwerkskonverter nach Anspruch 2, dadurch gekennzeichnet, daß die Öffnungen (31 ) als Schlitz (32) ausgestaltet sind.3. Steel plant converter according to claim 2, characterized in that the openings (31) are designed as a slot (32).
4. Stahlwerkskonverter nach den Ansprüchen 2, dadurch gekennzeichnet, daß die Öffnungen (31 ) Bohrungen (33) sind. 4. Steel mill converter according to claims 2, characterized in that the openings (31) are bores (33).
5. Stahlwerkskonverter nach den Ansprüchen 3 oder 4, dadurch gekennzeichnet, daß die Öffnungen (31) des Sammelrohres (24) eine das Einströmen des Kühlmediums (W) während des Betriebes behindernde Formen aufweisen, z.B. eine konische Gestalt mit in Strömungsrichtung sich öffnenden Seitenwänden besitzen.5. Steelworks converter according to claims 3 or 4, characterized in that the openings (31) of the collecting tube (24) have a shape which hinders the inflow of the cooling medium (W) during operation, e.g. have a conical shape with side walls opening in the direction of flow.
6. Stahlwerkskonverter nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die gesamte Freifläche der Öffnungen (31) bis zum 5-fachen der6. Steel plant converter according to one of the preceding claims, characterized in that the entire open area of the openings (31) up to 5 times the
Austrittsfläche des zugehörigen Kühlmedienablaufs (26) entspricht.Corresponds to the exit surface of the associated coolant outlet (26).
7. Stahlwerkskonverter nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß bei segmentförmiger Aufteilung der Konverterhutkühlung geschlossene7. Steel mill converter according to one of the preceding claims, characterized in that closed with segmental division of the converter hat cooling
Rohrstücke (34) vorgesehen sind, die die in den Segmenten (13) angeordneten mit Öffnungen (31) versehenen Sammelrohre (24) verbinden.Pipe pieces (34) are provided which connect the manifolds (24) arranged in the segments (13) and provided with openings (31).
8. Stahlwerkskonverter nach Anspruch 7, dadurch gekennzeichnet, daß die einzelnen Rohrstücke (34) über Kompensatoren (35) mit der Wandung (14) der Konverterhutsegmente (13) verbunden sind.8. Steel plant converter according to claim 7, characterized in that the individual pipe pieces (34) via compensators (35) with the wall (14) of the converter hat segments (13) are connected.
9. Stahlwerkskonverter nach Anspruch 7, dadurch gekennzeichnet, daß die Rohrstücke (34) als T-Stücke ausgestaltet sind und daß je Ablaß (27) ein Absperrorgan (41 ) vorgesehen ist.9. Steel plant converter according to claim 7, characterized in that the pipe pieces (34) are designed as T-pieces and that a shut-off device (41) is provided for each drain (27).
10. Stahlwerkskonverter nach Anspruch 1 , dadurch gekennzeichnet, daß das Sammelrohr (24) zur Außenwand (28) des fußseitigen Sammlers (22) beabstandet ist und mit diesem über Verbindungsrohre (37) verbunden ist. 10. Steel plant converter according to claim 1, characterized in that the collecting pipe (24) is spaced from the outer wall (28) of the foot-side collector (22) and is connected to it via connecting pipes (37).
11. Stahlwerkskonverter nach Anspruch 10, dadurch gekennzeichnet, daß das Sammelrohr (24) durch Absperrorgane (41 , 42) absperrbar ist und daß jeweils zwischen zwei Absperrorganen (41 , 42) mindestens ein Kühlmedienablauf (26) vorgesehen ist.11. Steel plant converter according to claim 10, characterized in that the collecting pipe (24) can be shut off by shut-off elements (41, 42) and that between two shut-off elements (41, 42) at least one cooling medium outlet (26) is provided.
12. Stahlwerkskonverter nach Anspruch 11 , dadurch gekennzeichnet, daß das Sammelrohr (24) an einer Wasserversorgung (36) angeschlossen ist, über die eine Teilmenge zwischen Qτ = 5 bis 15 % x Q führbar ist.12. Steel plant converter according to claim 11, characterized in that the collecting pipe (24) is connected to a water supply (36) via which a subset between Q τ = 5 to 15% x Q can be performed.
13. Stahlwerkskonverter nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß in dem kopfseitigen Sammler (23) mindestens eine offenbare Entlüftung (29) vorgesehen ist.13. Steel plant converter according to one of the preceding claims, characterized in that in the header collector (23) at least one apparent vent (29) is provided.
14. Stahlwerkskonverter nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß Umschaltventile (51) vorgesehen sind, mit denen die Kühlmedienzufuhr (25) und gegebenenfalls die Wasserversorgung (36) umschaltbar und der14. Steel plant converter according to one of the preceding claims, characterized in that changeover valves (51) are provided with which the cooling medium supply (25) and optionally the water supply (36) can be switched over and the
Kühlmedienablauf (26) abschaltbar ist. Coolant outlet (26) can be switched off.
EP98936179A 1997-07-08 1998-06-15 Steelworks converter with cone cooling system Expired - Lifetime EP0994972B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19730250 1997-07-08
DE19730250A DE19730250C1 (en) 1997-07-08 1997-07-08 Steelworks converter with cap cooling
PCT/DE1998/001634 WO1999002740A1 (en) 1997-07-08 1998-06-15 Steelworks converter with cone cooling system

Publications (2)

Publication Number Publication Date
EP0994972A1 true EP0994972A1 (en) 2000-04-26
EP0994972B1 EP0994972B1 (en) 2001-08-16

Family

ID=7835742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98936179A Expired - Lifetime EP0994972B1 (en) 1997-07-08 1998-06-15 Steelworks converter with cone cooling system

Country Status (9)

Country Link
US (1) US6277325B1 (en)
EP (1) EP0994972B1 (en)
CN (1) CN1082547C (en)
AT (1) ATE204340T1 (en)
AU (1) AU8532098A (en)
BR (1) BR9810553A (en)
DE (2) DE19730250C1 (en)
ES (1) ES2159437T3 (en)
WO (1) WO1999002740A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7452499B2 (en) * 2004-10-29 2008-11-18 Systems Spray-Cooled, Inc. Furnace cooling system and method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US427841A (en) * 1890-05-13 John e
FR2144547B1 (en) * 1971-07-05 1974-03-29 Fives Lille Cail
DE2151629A1 (en) * 1971-10-16 1973-04-26 Demag Ag COOLING DEVICE FOR A HOT VESSEL, IN PARTICULAR FOR A STEELWORKS CONVERTER
AT338307B (en) * 1973-07-23 1977-08-25 Voest Ag METALLURGICAL VESSEL, IN PARTICULAR CONVERTER
AT337741B (en) * 1974-09-12 1977-07-11 Voest Ag CONVERTER WITH A CONVERTER HAT
US4128232A (en) * 1977-06-30 1978-12-05 Pennsylvania Engineering Corporation Cooling assembly for metallurgical vessels
US4085924A (en) * 1977-07-15 1978-04-25 Pennsylvania Engineering Corporation Cooling assembly for metallurgical vessels
AT357582B (en) * 1978-04-04 1980-07-25 Voest Alpine Ag COOLING SYSTEM FOR A METALLURGICAL TUBE
US4278241A (en) * 1980-07-18 1981-07-14 Chicago Bridge & Iron Company Top cone cooling system for basic oxygen furnace
DE3048199C2 (en) * 1980-12-20 1983-01-13 Mannesmann AG, 4000 Düsseldorf Metallurgical vessel, especially steel mill converter
DE3330237C2 (en) * 1983-08-22 1985-07-04 Mannesmann AG, 4000 Düsseldorf Metallurgical reaction vessel, especially steel mill converter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9902740A1 *

Also Published As

Publication number Publication date
ES2159437T3 (en) 2001-10-01
ATE204340T1 (en) 2001-09-15
EP0994972B1 (en) 2001-08-16
WO1999002740A1 (en) 1999-01-21
CN1262708A (en) 2000-08-09
DE59801223D1 (en) 2001-09-20
AU8532098A (en) 1999-02-08
DE19730250C1 (en) 1998-08-06
CN1082547C (en) 2002-04-10
US6277325B1 (en) 2001-08-21
BR9810553A (en) 2000-08-15

Similar Documents

Publication Publication Date Title
WO2006021315A1 (en) Rolled heat exchanger
DE19501547A1 (en) Modular heat exchanger system
EP2818821A1 (en) Coiled heat exchanger with core tube feed
DE3214775C2 (en) Device for transferring heat-carrying fluid from a supply line of a district heating power plant to a consumer
EP0366606B1 (en) Hot gas cooler for a coal gasification plant
DE102008038140A1 (en) Tube heat exchangers, double deflector bend for tube heat exchangers, adapter for tube heat exchangers and system and method for heat transfer between at least two food streams
DE102007054703B4 (en) heat exchangers
DE3141734C2 (en)
EP0994972A1 (en) Steelworks converter with cone cooling system
EP1126227A1 (en) Steam condenser
DE112023000239T5 (en) Heat exchange component and heat exchange process for a hydrogenation device
WO2010012409A1 (en) Device for the piping of process systems in the food and beverage industry, and method for operating a device
DE202009015458U1 (en) Coiled heat exchanger
CH665020A5 (en) HEAT EXCHANGER.
DE4221130C2 (en) Water pipe steam generator with vertically arranged field pipes
DE20007262U1 (en) Steam injector
DE2206603A1 (en) Washing tower for gases
DE10117989C1 (en) Steam creating system, for heating by exhaust gas, has two or more water/steam circuits, each with at least one evaporator device
DE2323378A1 (en) EMERGENCY COOLING SYSTEM FOR A NUCLEAR REACTOR
CH364493A (en) Device for the production of gas mixtures containing hydrogen and carbon monoxide
EP0682804B1 (en) Device providing protection against pressure losses in a pressure vessel
DE107260C (en)
DE932067C (en) Heat exchanger
EP3366788A1 (en) Coolant guide unit for a converter waste gas hood
DE1124527B (en) Heat exchange arrangement, especially for reactor systems, with a closed coolant circuit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000106

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT DE ES FR GB IT

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 20010110

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE ES FR GB IT

REF Corresponds to:

Ref document number: 204340

Country of ref document: AT

Date of ref document: 20010915

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20010816

REF Corresponds to:

Ref document number: 59801223

Country of ref document: DE

Date of ref document: 20010920

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2159437

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020611

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20020613

Year of fee payment: 5

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030616

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040227

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030616

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59801223

Country of ref document: DE

Representative=s name: ANWALTSKANZLEI MEISSNER & MEISSNER, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 59801223

Country of ref document: DE

Owner name: SMS GROUP GMBH, DE

Free format text: FORMER OWNER: SMS SIEMAG AKTIENGESELLSCHAFT, 40237 DUESSELDORF, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20170621

Year of fee payment: 20

Ref country code: GB

Payment date: 20170620

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20170622

Year of fee payment: 20

Ref country code: AT

Payment date: 20170622

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59801223

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20180614

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20180614

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 204340

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180615