EP1042515A1 - Systeme convertisseur dote d'un anneau d'etancheite divise et place entre le convertisseur et la cheminee de gaz de combustion - Google Patents

Systeme convertisseur dote d'un anneau d'etancheite divise et place entre le convertisseur et la cheminee de gaz de combustion

Info

Publication number
EP1042515A1
EP1042515A1 EP98966525A EP98966525A EP1042515A1 EP 1042515 A1 EP1042515 A1 EP 1042515A1 EP 98966525 A EP98966525 A EP 98966525A EP 98966525 A EP98966525 A EP 98966525A EP 1042515 A1 EP1042515 A1 EP 1042515A1
Authority
EP
European Patent Office
Prior art keywords
converter
sleeve
segments
sealing ring
gas chimney
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
EP98966525A
Other languages
German (de)
English (en)
Other versions
EP1042515B1 (fr
Inventor
Peter Then
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 EP1042515A1 publication Critical patent/EP1042515A1/fr
Application granted granted Critical
Publication of EP1042515B1 publication Critical patent/EP1042515B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C21C5/38—Removal of waste gases or dust
    • 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
    • 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
    • F27D2001/0059—Construction elements of a furnace

Definitions

  • the invention relates to a converter system with between the hat of a tiltable
  • Converter and the mouth of a flue gas chimney provided sealing ring, drives are provided with which the sealing ring can be moved so far away from the converter hat that the converter can be tilted freely.
  • Converters for steel production are usually with a water-cooled
  • Cooling chimney equipped to record and discharge the process gases emerging at the mouth.
  • the converter mouth is spaced from the inlet opening of the cooling chimney in order to be able to move the vessel past under the chimney opening for charging and emptying.
  • the gap In systems that work with suppressed combustion of the process gases, the gap must be kept as completely closed as possible during the process. This is intended to limit the access of air to the extracted converter gas in order to record the combustible gas with its high calorific value unburned and, after appropriate cooling and cleaning, to pass it on for further use.
  • a movable water-cooled ring is usually arranged at the chimney inlet, which can be lowered by means of hydraulic or other mechanical devices, so as to reduce the air gap during the process.
  • Labyrinth-like aprons are expensive because of the required cooling, they have a limited effect due to the remaining gaps and are also difficult to access.
  • a flue gas chimney is known from JP 63-42321, in which the mouth region is arranged to be movable coaxially with a central chimney pipe. This mouth is loosely attached to the converter.
  • the invention has, with knowledge of the above. Difficulties, with the goal of using structurally simple means to close the gap converter and chimney tightly during operation and also to create the possibility of establishing a gas-tight connection between chimney and converter and thus operating the system even under excess pressure.
  • the sealing ring is designed as a sleeve which surrounds the flue gas fireplace from the outside.
  • the mouth of the sleeve is in the closed position on Converter hat can be leaned on.
  • the sleeve has vertical separating cuts, whereby a locking ring is formed, which is composed of two or more sub-segments that are movable relative to one another.
  • the individual segments have an inner radius that corresponds to the outer radius of the lower part of the chimney.
  • Converter mouth lowered or moved away from it.
  • the ring segments are pulled together again by the device until they are again close to the wall of the fireplace. If the locking ring is to be brought into a new position, the segments are first detached from one another again with the aid of the device, the ring is brought into the new position and closed again by the lifting device.
  • the horizontal distance between the individual segments can be predetermined
  • any intermediate positions can also be approached, always ensuring that the gap between the chimney and the locking ring is completely sealed.
  • the ring segments can also be fastened in such a way that they are pivotally attached to a holding device at their upper edge and are moved laterally in the manner of a bowl into an open position or downwards into the closed position.
  • suitable lifting rods can be fixed or movable hydraulic cylinders can be attached.
  • the ring segments are made from water-cooled pipes that are welded tightly together.
  • the tubes can be arranged either horizontally or vertically.
  • the cooling water is led through movable connecting pipes, which are connected to the distributors of the pipe segments.
  • the side shifting device is actuated by means of hydraulic cylinders or also by mechanical devices such as thrust drive or lifting linkage.
  • the necessary energy supply is provided by corresponding flexible supply lines.
  • the devices are designed and installed in such a way that they are adequately protected against heat and slag.
  • the ring segments can be connected via a guide, which ensure a controlled synchronous movement.
  • guide rails with roller guides on the lower part of the chimney and on the locking ring can ensure that the components maintain their position relative to one another during the movements.
  • FIG. 1 segments of a sealing ring that can be moved vertically
  • FIG. 2 segments of a sealing ring that can be moved vertically and horizontally
  • Figure 3 segments of a sealing ring which are pivotable.
  • a converter 21 which has a converter hat 22, at the mouth of which a collar 23 is provided.
  • a flue gas chimney 11 is provided above the converter 21 and has an opening 12.
  • a sealing ring 31 is arranged in the mouth region and has the sleeve segments 33 and 34. This sealing ring can also have a larger number of individual segments.
  • the sleeve segments 33, 34 have vertical separating cuts 35. 1, the sleeve segment 33 is connected to a drive 41 and the sleeve segment 34 is connected to a lifting device 42, by means of which the segments 33, 34 can be moved in the vertical direction.
  • a guide element 51 is fastened to the segments 33, 34, which corresponds to a guide bar 52 which is fastened to a spacer tube 53.
  • the sleeve segment 33 is connected to a drive 41 and the sleeve segment 34 is connected to a closing device 43, through which the sleeve segments 33, 34 can be moved horizontally.
  • the sleeve segments 33 and 34 are connected to one another via a joint 39.
  • the sleeve segment 33 is pivoted by a drive 41 and the sleeve segment 34 by a lifting device 42.
  • a closing device 43 is provided on the sleeve segments 33, 34, by means of which the sleeve segments can be opened and pressed tightly against the collar 23 of the converter hat 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Gasket Seals (AREA)
  • Air Supply (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'invention concerne un système convertisseur comprenant un anneau d'étanchéité intercalé entre le chapeau d'un convertisseur basculant et l'orifice d'une cheminée de gaz de combustion. Les entraînements prévus permettent d'éloigner l'anneau d'étanchéité suffisamment du chapeau du convertisseur pour pouvoir basculer facilement le convertisseur. L'anneau d'étanchéité (31) est conçu sous la forme d'une enveloppe (32) qui englobe la cheminée de gaz de combustion de l'extérieur. L'orifice de l'enveloppe (32) peut, en position fermée, prendre appui sur le chapeau de convertisseur (22) et l'enveloppe (32) présente des sections de séparation verticales (35) qui divise l'enveloppe (32) en au moins deux segments (33, 34).
EP98966525A 1997-12-19 1998-12-04 Systeme convertisseur dote d'un anneau d'etancheite divise et place entre le convertisseur et la cheminee de gaz de combustion Expired - Lifetime EP1042515B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19758141A DE19758141C2 (de) 1997-12-19 1997-12-19 Konverteranlage
DE19758141 1997-12-19
PCT/DE1998/003632 WO1999032669A1 (fr) 1997-12-19 1998-12-04 Systeme convertisseur dote d'un anneau d'etancheite divise et place entre le convertisseur et la cheminee de gaz de combustion

Publications (2)

Publication Number Publication Date
EP1042515A1 true EP1042515A1 (fr) 2000-10-11
EP1042515B1 EP1042515B1 (fr) 2002-03-13

Family

ID=7853539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98966525A Expired - Lifetime EP1042515B1 (fr) 1997-12-19 1998-12-04 Systeme convertisseur dote d'un anneau d'etancheite divise et place entre le convertisseur et la cheminee de gaz de combustion

Country Status (14)

Country Link
US (1) US6290899B1 (fr)
EP (1) EP1042515B1 (fr)
JP (1) JP2001527152A (fr)
KR (1) KR20010032969A (fr)
CN (1) CN1282379A (fr)
AR (1) AR017863A1 (fr)
AT (1) ATE214432T1 (fr)
AU (1) AU735331B2 (fr)
BR (1) BR9813754A (fr)
CA (1) CA2315376A1 (fr)
DE (2) DE19758141C2 (fr)
ES (1) ES2170548T3 (fr)
TW (1) TW394796B (fr)
WO (1) WO1999032669A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101736118B (zh) * 2008-11-18 2011-09-07 中冶天工建设有限公司 炼钢转炉氧枪轨道梁安装方法
EP2196738B1 (fr) * 2008-12-10 2013-10-23 Electrolux Home Products Corporation N.V. Hotte de cuisine
DE102011121677A1 (de) * 2011-12-13 2013-06-13 Sms Siemag Ag Konvertergasabführung
CN109576438B (zh) * 2018-12-26 2024-03-19 苏州海陆重工股份有限公司 转炉汽化冷却烟道的下料口装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215425A (en) * 1953-12-28 1965-11-02 Kaiser Ind Corp Metallurgical apparatus
AT194873B (de) * 1953-12-28 1958-01-25 Henry J Kaiser Company Abdichtungsvorrichtung für Konverter
US2855194A (en) * 1954-07-21 1958-10-07 Brassert Oxygen Technik A G System for sealing a converter
US3205810A (en) * 1962-09-04 1965-09-14 Inland Steel Co Adjustable hood construction for metallurgical furnace
DE1263801B (de) * 1962-10-29 1968-03-21 Waagner Biro Ag Messleitung
US3223399A (en) * 1962-11-26 1965-12-14 Kaiser Ind Corp Apparatus for oxygen conversion of iron to steel
AT251617B (de) * 1963-05-30 1967-01-10 Bot Brassert Oxygen Technik Ag Tiegel oder Konverter
GB1166000A (en) * 1967-02-23 1969-10-01 Steel Co Of Wales Ltd Improvements in or relating to the Manufacture of Steel
US4427183A (en) * 1981-11-13 1984-01-24 Hegemann Karl Rudolf Gas control system for steel-making converters
JPS6342321A (ja) 1986-08-05 1988-02-23 Kobe Steel Ltd 転炉吹錬用ランス挿入口のシ−ル装置
AT394396B (de) * 1990-07-03 1992-03-25 Voest Alpine Stahl Donawitz Verfahren zur wiederverwendung von huettenstaeuben sowie vorrichtung zur durchfuehrung dieses verfahrens
JPH06342321A (ja) * 1991-11-14 1994-12-13 Kozo Kawai キーボード等の操作台装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9932669A1 *

Also Published As

Publication number Publication date
EP1042515B1 (fr) 2002-03-13
DE19758141C2 (de) 1999-12-02
DE19758141A1 (de) 1999-07-01
ES2170548T3 (es) 2002-08-01
AR017863A1 (es) 2001-10-24
US6290899B1 (en) 2001-09-18
DE59803388D1 (de) 2002-04-18
CN1282379A (zh) 2001-01-31
TW394796B (en) 2000-06-21
JP2001527152A (ja) 2001-12-25
WO1999032669A1 (fr) 1999-07-01
KR20010032969A (ko) 2001-04-25
AU735331B2 (en) 2001-07-05
CA2315376A1 (fr) 1999-07-01
ATE214432T1 (de) 2002-03-15
BR9813754A (pt) 2000-10-03
AU2408999A (en) 1999-07-12

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