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EP0004614A1 - Système de refroidissement pour un convertisseur d'acierie - Google Patents

Système de refroidissement pour un convertisseur d'acierie Download PDF

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Publication number
EP0004614A1
EP0004614A1 EP79100888A EP79100888A EP0004614A1 EP 0004614 A1 EP0004614 A1 EP 0004614A1 EP 79100888 A EP79100888 A EP 79100888A EP 79100888 A EP79100888 A EP 79100888A EP 0004614 A1 EP0004614 A1 EP 0004614A1
Authority
EP
European Patent Office
Prior art keywords
cooling
converter
cooling liquid
line
conduit
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
EP79100888A
Other languages
German (de)
English (en)
Other versions
EP0004614B1 (fr
Inventor
Alexander Dipl.-Ing. Patuzzi
Manfred Eysn
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.)
Voestalpine AG
Original Assignee
Voestalpine 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3532888&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0004614(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voestalpine AG filed Critical Voestalpine AG
Publication of EP0004614A1 publication Critical patent/EP0004614A1/fr
Application granted granted Critical
Publication of EP0004614B1 publication Critical patent/EP0004614B1/fr
Expired 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
    • 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
    • C21C5/46—Details or accessories
    • C21C5/4646—Cooling arrangements

Definitions

  • the invention relates to a cooling system for a metallurgical vessel, in particular for a steelworks converter, with cooling chambers provided on the wall of the vessel and through which cooling liquid flows, in particular for a converter hat, on the circumference of which a large number of coolant flows extending in the surface line of the top surface Cooling chambers are arranged, which are connected to distributor or manifold sections running horizontally around the circumference of the converter hat, these being connected to a coolant supply system with a supply line running through one or both support pins of the converter.
  • the invention aims at avoiding these disadvantages and difficulties and has as its object to provide a device to a cooling system of a metallurgical overall fä it ß to provide, by means of which the cooling liquid is removed within a very short period of time from the cooling chambers without the risk of formation of steam and explosions can be.
  • the supply line of the cooling system can optionally be connected to a compressed gas line for the purpose of emptying the cooling liquid, monitoring and signaling devices for controlling the pressure and / or the temperature and / or the flow rate of the cooling liquid being contained in the system and If these signal devices deviate from a maximum or minimum target value of the monitored parameters of the coolant, actuatable control elements are provided for disconnecting the line from the coolant supply system and connecting this line to the compressed gas line.
  • FIG. 1 showing two steelwork converter partially in a view from above
  • FIG. 2 a side view of the converter hat one of the illustrates both converters.
  • ring lines running horizontally at a distance from one another are laid, u. between the lower manifold 3 and the upper manifold 4.
  • These ring lines are divided into sections by partitions 5 and 6, so that manifold sections 3a, 3b, 3c ... and manifold sections 4a, 4b, 4c ... follow one another.
  • a plurality of channel-like cooling chambers 7 is arranged in groups, which likewise consist of channel-shaped profiles or angle irons and are welded to the outer surface of the converter hat.
  • Each such group 7 of cooling chambers is assigned a single reflux tube 8, which likewise consists of a channel-shaped profile which is welded to the surface of the hat and has a correspondingly larger cross section.
  • the arrangement of the return pipes is such that an upper manifold section 4a is connected to the next lower manifold section 3b by a return pipe 8.
  • a lower manifold portion 3a is connected to the K yerstoffeinlauf 9 and the last discharge tube 8 'is connected to the coolant outlet 10th
  • the coolant inlet 9 is connected to a feed line 11 which is guided through the support pin 12 of the converter 1, 1 '.
  • the coolant via the discharge line 14 to the coolant supply system, which is denoted in its entirety by 15 and which in addition the pumps 16 is formed from the necessary pipes and control valves, not specified, supplied.
  • this cooling fluid supply system 15 is designed as a closed system, the cooling liquid, preferably treated cooling water, being fed back to the feed line 11 by means of the pumps 16.
  • a plurality of signal devices 17, 18, 19 are installed in the supply and discharge lines 11, 14 of each converter 1, 1 ', of which the signal devices 17 for monitoring the temperature, the signal devices 18 for monitoring the flow rate and finally the signaling devices 19 are used to monitor the coolant pressure.
  • each derivation 14 of each converter 1, 1 ' there is further provided a control member designed as a valve 20, by means of which each derivation 14 can be separated from the coolant supply system 15 and connected to a compressed gas line 21, preferably a compressed air line.
  • each feed line 11 there is also a control element designed as a valve 22, which makes it possible to separate the feed line 11 from the coolant supply system 15 and to connect the feed line to an overflow 23.
  • the two valves 20, 22 can be actuated by the signal devices 17, 18, 19 via the control lines 24.
  • the cooling liquid supply system 15 also serves jerk gas line 21 for the simultaneous supply of both converters 1, 1 as the D '.
  • the function of the cooling system described is as follows: During the operation of the metallurgical vessel the cooling water conveyed by the pumps 16 first flows the converter hat cooling of each converter 1, 1 ', then the support ring and is then returned to the pumps 16 via the discharge line 14. As soon as one of the signaling devices 17, 18, 19 for monitoring the pressure, the temperature or the amount of the cooling water registers a value deviating from the area in which the cooling of the converter is properly ensured, the valves 20, 22 of the respective one Converter operated automatically via the control lines 24 in such a way that the valve 22 connects the feed line 11 with the overflow 23 and the valve 20 the discharge line 14 with the compressed gas line 21.
  • the invention is not limited to the embodiment shown in the drawing, but can be modified in various ways.
  • the cooling device formed by the ring lines and cooling chambers for the converter hat it is also possible to provide cooling chambers formed from plate cooling elements, or to form cooling chambers from meandering pipe coils guided around the crucible hat.
  • the cooling chambers of the converter hat also do not have to be connected in series, as in the exemplary embodiment shown, but they can also be combined to form a plurality in parallel, each with its own feed and discharge to the coolant supply system be connected. Furthermore, it is possible to let the compressed air flow through the cooling chambers in the direction of the flow of the cooling liquid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
EP19790100888 1978-04-04 1979-03-23 Système de refroidissement pour un convertisseur d'acierie Expired EP0004614B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT235978A AT357582B (de) 1978-04-04 1978-04-04 Kuehlsystem fuer ein metallurgisches gefaess
AT2359/78 1978-04-04

Publications (2)

Publication Number Publication Date
EP0004614A1 true EP0004614A1 (fr) 1979-10-17
EP0004614B1 EP0004614B1 (fr) 1981-12-23

Family

ID=3532888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790100888 Expired EP0004614B1 (fr) 1978-04-04 1979-03-23 Système de refroidissement pour un convertisseur d'acierie

Country Status (3)

Country Link
EP (1) EP0004614B1 (fr)
AT (1) AT357582B (fr)
DE (1) DE2961590D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0065330A1 (fr) * 1981-05-20 1982-11-24 BBC Aktiengesellschaft Brown, Boveri & Cie. Elément de refroidissement pour fours industriels
EP0143971A1 (fr) * 1983-10-28 1985-06-12 Betriebsforschungsinstitut VDEh Institut für angewandte Forschung GmbH Rigole de coulée pour un four à cuve
EP0439888A1 (fr) * 1988-02-11 1991-08-07 Uop Purification par adsorption/désorption cyclique
WO1999002740A1 (fr) * 1997-07-08 1999-01-21 Sms Demag Ag Convertisseur d'usine siderurgique avec systeme de refroidissement du bec du convertisseur

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT171697B (de) * 1950-01-31 1952-06-25 Voest Ag Verfahren zur Überwachung und Durchführung von unter Anwendung von Düsen verlaufenden Vorgängen
AT337741B (de) * 1974-09-12 1977-07-11 Voest Ag Konverter mit einem konverterhut

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT171697B (de) * 1950-01-31 1952-06-25 Voest Ag Verfahren zur Überwachung und Durchführung von unter Anwendung von Düsen verlaufenden Vorgängen
AT337741B (de) * 1974-09-12 1977-07-11 Voest Ag Konverter mit einem konverterhut

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0065330A1 (fr) * 1981-05-20 1982-11-24 BBC Aktiengesellschaft Brown, Boveri & Cie. Elément de refroidissement pour fours industriels
EP0143971A1 (fr) * 1983-10-28 1985-06-12 Betriebsforschungsinstitut VDEh Institut für angewandte Forschung GmbH Rigole de coulée pour un four à cuve
EP0439888A1 (fr) * 1988-02-11 1991-08-07 Uop Purification par adsorption/désorption cyclique
WO1999002740A1 (fr) * 1997-07-08 1999-01-21 Sms Demag Ag Convertisseur d'usine siderurgique avec systeme de refroidissement du bec du convertisseur

Also Published As

Publication number Publication date
AT357582B (de) 1980-07-25
EP0004614B1 (fr) 1981-12-23
ATA235978A (de) 1979-12-15
DE2961590D1 (en) 1982-02-11

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