EP1373583A1 - Verfahren und vorrichtung zur verhinderung des mitfliessens von schlacke beim abstich einer metallschmelze - Google Patents
Verfahren und vorrichtung zur verhinderung des mitfliessens von schlacke beim abstich einer metallschmelzeInfo
- Publication number
- EP1373583A1 EP1373583A1 EP02735019A EP02735019A EP1373583A1 EP 1373583 A1 EP1373583 A1 EP 1373583A1 EP 02735019 A EP02735019 A EP 02735019A EP 02735019 A EP02735019 A EP 02735019A EP 1373583 A1 EP1373583 A1 EP 1373583A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vessel
- channels
- tube
- tapping
- opening
- 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
Links
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 29
- 239000002893 slag Substances 0.000 title claims abstract description 9
- 239000002184 metal Substances 0.000 title claims abstract description 7
- 238000000034 method Methods 0.000 title claims description 14
- 238000009432 framing Methods 0.000 claims abstract description 4
- 239000011819 refractory material Substances 0.000 claims abstract description 4
- 239000000155 melt Substances 0.000 claims description 23
- 239000004575 stone Substances 0.000 claims description 20
- 238000007664 blowing Methods 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 2
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 5
- 241000220645 Leonotis nepetifolia Species 0.000 description 3
- 235000014443 Pyrus communis Nutrition 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
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
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
- B22D43/001—Retaining slag during pouring molten metal
-
- 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
- C21C5/4653—Tapholes; Opening or plugging thereof
-
- 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
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/19—Arrangements of devices for discharging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/15—Tapping equipment; Equipment for removing or retaining slag
- F27D3/1545—Equipment for removing or retaining slag
- F27D3/159—Equipment for removing or retaining slag for retaining slag during the pouring of the metal or retaining metal during the pouring of the slag
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/003—Linings or walls comprising porous bricks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1621—Making linings by using shaped elements, e.g. bricks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
- F27D2003/161—Introducing a fluid jet or current into the charge through a porous element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/15—Tapping equipment; Equipment for removing or retaining slag
- F27D3/1509—Tapping equipment
Definitions
- the invention relates to a method for preventing the flow of slag when tapping a molten metal from a metallurgical vessel.
- these vessels may not, for example, exclusively be those for steel production, that is to say a converter or the vessel of an electric furnace.
- such a vessel offers an approximately oval or pear shape, the tap opening being provided in the tapering front bottom region.
- the melt level is about 1 m to 1.50 above the tap opening.
- This tap hole is clogged with a filling material and closed at the bottom by means of a slide.
- the filling material forms a hill protruding into the interior of the container above the tap opening.
- the vessel For the tapping, ie for the transfer of the melt into the pan in which the steel is subjected to the secondary metallurgy process, the vessel is pivoted into the tapping position, so that the tapping opening is now the deepest area of the vessel forms. In this position the slide is opened and the filling material in the tap opening is removed.
- the outflowing melt forms a vortex above the tap opening (vortex effect), which pulls the slag floating on the melt with it through the suction effect, which is undesirable for metallurgical reasons.
- the invention is therefore based on the object of carrying out a method of the type mentioned at the outset in such a way that the aforementioned swirl effect can be eliminated in a simple manner.
- Another object of the invention is to provide an apparatus for performing the method.
- the invention solves the first part of the task with the aid of the following method steps:
- gas is blown into the melt from below through the bottom of the ladle in order to produce a circulation process of the melt so that a homogenization of the melt temperature how to achieve the alloy components dissolved in the melt.
- these flushing stones are surrounded by a metal jacket.
- the height of the steel level in the pan above the sink is up to 4 m.
- the invention makes use of this effect.
- the tap opening in the vessel of an electric furnace is formed by so-called interchangeable tubes, several of which form the opening which narrows downwards one above the other.
- Such exchangeable pipes consist of magnesite, corundum concrete or similar refractory materials.
- These interchangeable tubes are surrounded by tapping framing stones, whereby a joint exists between the interchangeable tubes and the tapping framing stones, which is filled with a refractory material.
- This system is completed at the bottom by a so-called cup stone.
- the opening of the cup stone can be closed by means of a slide.
- the gas supply begins.
- the gas emerging from the channels removes the hill formed from the filling material above the tap opening.
- the slide is swiveled away below the cup stone and the filling material within the tap hole is removed.
- the melt can now flow into the pan, the above-mentioned strudel wanting to form above the tap opening.
- the gas flowing into the melt similar to the flushing process in the pan above the channel openings, forms the "bald head" described, which means that the slag is pressed outwards in this area and is prevented from flowing into the pan through the tap opening.
- the blowing in of the gas is continued until the vessel has been swung back again and the tap opening is no longer covered by the melt.
- the ducts run through all the interchangeable tubes arranged one above the other, provision is preferably made for only the uppermost or the uppermost two of the interchangeable tubes to be provided with channels. These two uppermost interchangeable tubes can also be formed in one piece and thus form a unit.
- the arrangement and geometry of the channels result from the respective application requirements.
- Experience in the field of flushing stones can be used for the creation and geometry of the channels.
- the bottom duct-carrying interchangeable tube is provided on its underside with an annular space in which all ducts open, and in which the gas supply tube opens, which, for example, is in the area between the interchangeable tubes and the surrounding tapping frames is led.
- the existing joint between the two elements can be used for this, or a groove is provided in the outside of the ductless interchangeable pipes.
- claims 10 and 11 alternatively propose either to put the metallic shell of the metallurgical vessel on the same electrical potential as the gas supply pipes or, according to claim 11, the gas supply pipes against the metallurgical one Isolate the potential of the vessel.
- FIG. 1 shows the vessel of an electric furnace for steel production in a longitudinal section and is generally provided with the reference symbol 1.
- the vessel 1 has an approximately pear shape, the tap opening 4 being located at the tapering end 2 in the bottom 3 of the vessel 1.
- the anode 5 is arranged in the approximately central region of the base 3. The cathode and the lid of the vessel are not shown.
- the vessel 1 can be tilted about an axis perpendicular to the plane of the paper. In this vessel 1, scrap is predominantly melted, whereby • the melt reaches the height designated 6 after the melting process.
- this tapping system is constructed from five interchangeable tubes 7, 7 'arranged one above the other, the opening diameter of which becomes smaller towards the bottom.
- the interchangeable tubes 7, 7 ' are surrounded by cubic tapping frame stones 8, the joint 9 between the interchangeable tubes 7, 7' and the tapping frame stones 8 being filled with a refractory filling material.
- the tapping system is completed at the bottom by means of a cup stone 10, the opening of which can be closed by means of a slide (not shown).
- the uppermost two interchangeable tubes 7 ' have axially extending channels 11 arranged in the tube wall, which establish a connection between the interior of the vessel 1 and an annular space 12 which is provided on the underside of the lower interchangeable tube 7'.
- a gas supply line 13 opens into this annular space 12, which leads downwards between the exchangeable tubes 7 and the tapping frame stones 8 and is guided obliquely outwards between the lowermost tapping frame stone 8 and the cup stone.
- FIG. 3 shows a possible embodiment of an exchangeable tube 7 '.
- This interchangeable tube 7 ' is constructed in two parts, namely from an inner part 14 which is conically shaped. is formed, the outer shell of this cone narrows upwards.
- This inner cone 14 is in an outer part 15, the inner surface of which is complementary to the outer surface of the inner cone 14.
- FIG. 4c A top view of such an exchangeable tube 7 'is shown in FIG. 4c.
- the channels 11 for the gas flow are formed here by grooves formed in the outer surface of the inner cone 14.
- FIGS. 4a and 4b Further possible configurations of the channels can be found in FIGS. 4a and 4b.
- the channels 11 are designed as radially arranged slots, while the channels 11 in the example of FIG. 4b are formed by a large number of bores.
- channels in a star shape or the like are possible, for example channels in a star shape or the like.
- the vessel 1 is tipped forward so that the tap opening 4 forms the lowest part of the vessel 1.
- the gas is blown into the melt via the channels 11. Only then is the tapping system opened so that the melt can flow through the tap opening 4 into a pan (not shown) placed underneath.
- the tapping system opened so that the melt can flow through the tap opening 4 into a pan (not shown) placed underneath.
- the formation of a vortex above the tap opening 4 is counteracted, so that no slag can be entrained into the pan through the tap opening 4 by this vortex.
- a so-called "bald head” is formed above the tap opening 4 by the gas blown in, ie an area in which the slag is forced away to the side.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Charging Or Discharging (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Furnace Details (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Continuous Casting (AREA)
- Discharge Heating (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10117181 | 2001-04-05 | ||
DE10117181A DE10117181C1 (de) | 2001-04-05 | 2001-04-05 | Verfahren und Vorrichtung zur Verhinderung des Mitfließens von Schlacke beim Abstich einer Stahlschmelze |
PCT/DE2002/001117 WO2002081759A1 (de) | 2001-04-05 | 2002-03-27 | Verfahren und vorrichtung zur verhinderung des mitfliessens von schlacke beim abstich einer metallschmelze |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1373583A1 true EP1373583A1 (de) | 2004-01-02 |
EP1373583B1 EP1373583B1 (de) | 2007-06-20 |
Family
ID=7680629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02735019A Expired - Lifetime EP1373583B1 (de) | 2001-04-05 | 2002-03-27 | Vorrichtung zur verhinderung des mitfliessens von schlacke beim abstich einer metallschmelze |
Country Status (27)
Country | Link |
---|---|
US (1) | US6951296B2 (de) |
EP (1) | EP1373583B1 (de) |
JP (1) | JP4029046B2 (de) |
KR (1) | KR100544529B1 (de) |
CN (1) | CN1204274C (de) |
AT (1) | ATE365230T1 (de) |
AU (1) | AU2002311073B2 (de) |
BR (1) | BR0204753B1 (de) |
CA (1) | CA2410799C (de) |
CY (1) | CY1106838T1 (de) |
CZ (1) | CZ301430B6 (de) |
DE (3) | DE10117181C1 (de) |
DK (1) | DK1373583T3 (de) |
DZ (1) | DZ3348A1 (de) |
EA (1) | EA004341B1 (de) |
ES (1) | ES2289105T3 (de) |
HU (1) | HUP0300903A2 (de) |
MX (1) | MXPA02011714A (de) |
NO (1) | NO20025825D0 (de) |
NZ (1) | NZ522964A (de) |
PL (1) | PL197434B1 (de) |
PT (1) | PT1373583E (de) |
SK (1) | SK286449B6 (de) |
TW (1) | TW528806B (de) |
UA (1) | UA73994C2 (de) |
WO (1) | WO2002081759A1 (de) |
ZA (1) | ZA200210336B (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004027440B3 (de) * | 2004-06-04 | 2005-06-16 | Refractory Intellectual Property Gmbh & Co. Kg | Abstichrohr |
US8210402B2 (en) | 2009-02-09 | 2012-07-03 | Ajf, Inc. | Slag control shape device with L-shape loading bracket |
EP2998672A1 (de) * | 2014-09-17 | 2016-03-23 | Refractory Intellectual Property GmbH & Co. KG | Abstich an einem metallurgischen Gefäss, insbesondere einem Elektrolichtbogenofen |
CN106978519A (zh) * | 2017-04-21 | 2017-07-25 | 东北大学 | 一种吹氩气防止钢包出钢过程中漩涡卷渣的方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1206752A (fr) * | 1982-06-18 | 1986-07-02 | Jean Goedert | Procede et dispositif pour vidanger des recipients metallurgiques |
LU84213A1 (fr) * | 1982-06-18 | 1983-11-23 | Arbed | Dispositif pour vidanger des recipients metallurgiques |
JPS59126713A (ja) * | 1983-01-08 | 1984-07-21 | Tokyo Yogyo Co Ltd | 炉底出鋼式電炉 |
DE3743575A1 (de) * | 1987-12-22 | 1989-07-13 | Krupp Gmbh | Verfahren zum abstechen einer metallschmelze und metallurgisches gefaess zur durchfuehrung des verfahrens |
JPH01201410A (ja) * | 1988-02-08 | 1989-08-14 | Nkk Corp | 精錬炉からの出鋼時における溶融スラグの流出防止方法 |
US4840355A (en) * | 1988-07-13 | 1989-06-20 | Labate M D | Slag controlling device for basic oxygen furnaces |
JPH10176212A (ja) * | 1996-12-18 | 1998-06-30 | Sumitomo Metal Ind Ltd | 溶鋼の排出時におけるスラグ流出防止方法 |
JPH11279620A (ja) * | 1998-03-31 | 1999-10-12 | Kawasaki Steel Corp | 転炉の出鋼時間調整方法 |
DE19916232A1 (de) * | 1999-04-10 | 2000-10-12 | Sms Demag Ag | Verfahren und Vorrichtung zum Abstechen von Metallschmelzen aus metallurgischen Schmelzgefäßen |
DE10034370A1 (de) * | 2000-07-14 | 2002-01-24 | Sms Demag Ag | Verfahren zum Verschließen oder Öffnen des Abstichloches eines metallurgischen Gefäßes, insbesondere eines Elektrolichtbogenofens und zugehöriger Bodenabstich |
-
2001
- 2001-04-05 DE DE10117181A patent/DE10117181C1/de not_active Expired - Fee Related
-
2002
- 2002-03-11 TW TW091104458A patent/TW528806B/zh not_active IP Right Cessation
- 2002-03-27 AU AU2002311073A patent/AU2002311073B2/en not_active Ceased
- 2002-03-27 DK DK02735019T patent/DK1373583T3/da active
- 2002-03-27 JP JP2002579521A patent/JP4029046B2/ja not_active Expired - Fee Related
- 2002-03-27 KR KR1020027016533A patent/KR100544529B1/ko not_active IP Right Cessation
- 2002-03-27 MX MXPA02011714A patent/MXPA02011714A/es active IP Right Grant
- 2002-03-27 EP EP02735019A patent/EP1373583B1/de not_active Expired - Lifetime
- 2002-03-27 HU HU0300903A patent/HUP0300903A2/hu unknown
- 2002-03-27 PL PL358060A patent/PL197434B1/pl not_active IP Right Cessation
- 2002-03-27 CZ CZ20024002A patent/CZ301430B6/cs not_active IP Right Cessation
- 2002-03-27 DZ DZ023348A patent/DZ3348A1/fr active
- 2002-03-27 ES ES02735019T patent/ES2289105T3/es not_active Expired - Lifetime
- 2002-03-27 WO PCT/DE2002/001117 patent/WO2002081759A1/de active IP Right Grant
- 2002-03-27 EA EA200201265A patent/EA004341B1/ru not_active IP Right Cessation
- 2002-03-27 CA CA002410799A patent/CA2410799C/en not_active Expired - Fee Related
- 2002-03-27 DE DE50210350T patent/DE50210350D1/de not_active Expired - Lifetime
- 2002-03-27 CN CNB028010515A patent/CN1204274C/zh not_active Expired - Fee Related
- 2002-03-27 NZ NZ522964A patent/NZ522964A/en not_active IP Right Cessation
- 2002-03-27 AT AT02735019T patent/ATE365230T1/de active
- 2002-03-27 BR BRPI0204753-5A patent/BR0204753B1/pt not_active IP Right Cessation
- 2002-03-27 PT PT02735019T patent/PT1373583E/pt unknown
- 2002-03-27 UA UA2003010152A patent/UA73994C2/uk unknown
- 2002-03-27 DE DE10291492T patent/DE10291492D2/de not_active Expired - Fee Related
- 2002-03-27 US US10/297,295 patent/US6951296B2/en not_active Expired - Fee Related
- 2002-03-27 SK SK1700-2002A patent/SK286449B6/sk not_active IP Right Cessation
- 2002-12-04 NO NO20025825A patent/NO20025825D0/no not_active Application Discontinuation
- 2002-12-20 ZA ZA200210336A patent/ZA200210336B/en unknown
-
2007
- 2007-08-28 CY CY20071101135T patent/CY1106838T1/el unknown
Non-Patent Citations (1)
Title |
---|
See references of WO02081759A1 * |
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2249332A1 (de) | Vorrichtung zum einfuehren von gas in fluessiges metall | |
DE3628066C2 (de) | Tauchausguß und Verfahren zur Herstellung eines Tauchausgusses | |
DE2037808A1 (de) | Metallurgischer Ofen | |
DE3000730C2 (de) | Vorrichtung zum Abtrennen von Schlacke von einer Schmelze | |
EP1373583A1 (de) | Verfahren und vorrichtung zur verhinderung des mitfliessens von schlacke beim abstich einer metallschmelze | |
DE3003884C2 (de) | Verfahren zum Einbau und Austausch eines gasdurchlässigen feuerfesten Einsatzes in der Wandung eine Schmelze enthaltenden Behälters für das Einführen von Gasen, in den Behälter und Anordnung für die Durchführung dieses Verfahrens | |
DE3441223A1 (de) | Spueleinsatz | |
DE3433123C2 (de) | Blasstein für metallurgische Pfannen und Verfahren zu seinem Einfügen in die Zustellung | |
DE2548854A1 (de) | Feuerfester stein mit einer durchlassoeffnung fuer fluessiges metall und verfahren zu dessen herstellung | |
AT390083B (de) | Verfahren zum ausruesten eines giessgefaesses fuer eine gasbehandlung einer metallschmelze, verfahren zum behandeln von metallschmelze in einem so ausgeruesteten gefaess sowie vorrichtung zum behandeln von metallschmelze in einem giessgefaess | |
DE3907887A1 (de) | Spuelstein | |
DE2455029C3 (de) | Verfahren und Schmelzenpfanne für die Herstellung von Vakuumstahl | |
EP0560834B1 (de) | Boden- oder wandausbildung für ein metallurgisches gefäss | |
DE2933466A1 (de) | Gefaess fuer die behandlung von geschmolzenem metall | |
EP0376008B1 (de) | Gaseintragssystem | |
DE2705551C3 (de) | Brennschneiddüse | |
WO2002076658A1 (de) | Einrichtung zur verhinderung eines vortex-effekts im auslaufbereich eines metallurgischen schmelzgefässes | |
DE4324768C1 (de) | Anordnung zur Verbindung einer Stopfenstange für ein metallurgisches Gefäß mit ihrer Hebevorrichtung und für die Anordnung geeignete Stopfenstange sowie Verfahren zur Herstellung der Anordnung | |
EP1432834A1 (de) | Lichtbogenofen mit angebauten erker zum abstechen der schmelze und verfahren zum dessen betreiben | |
EP0809554A1 (de) | Gasspülstein in form eines fugenspülers | |
AT394395B (de) | Metallurgisches gefaess und anordnung desselben | |
DE3742170C1 (de) | Verfahren und Vorrichtung zum Abschlacken von in metallurgischen Gefaessen befindlichen Metallschmelzen | |
DE1285679B (de) | Vorrichtung zur Zugabe von Schmelzzusaetzen | |
DE3815664C1 (en) | Gas bubble brick for metallurgical vessels and method for its manufacture | |
DE202005011220U1 (de) | Vorrichtung zum schlackearmen Entnehmen des Flüssigstahls aus Verteiler oder Pfanne bei der Stahlerzeugung |
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: 20030327 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SIEK, HORST |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RTI1 | Title (correction) |
Free format text: DEVICE FOR PREVENTING SLAG FROM FLOWING ALONG WHEN TAPPING A MOLTEN METAL |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REF | Corresponds to: |
Ref document number: 50210350 Country of ref document: DE Date of ref document: 20070802 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: PT Ref legal event code: SC4A Free format text: AVAILABILITY OF NATIONAL TRANSLATION Effective date: 20070816 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20070905 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: ISLER & PEDRAZZINI AG |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR Ref country code: GR Ref legal event code: EP Ref document number: 20070402614 Country of ref document: GR |
|
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2289105 Country of ref document: ES Kind code of ref document: T3 |
|
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 |
Effective date: 20080325 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080331 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: TR Payment date: 20120319 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20111114 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 20130221 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20130318 Year of fee payment: 12 Ref country code: SE Payment date: 20130322 Year of fee payment: 12 Ref country code: IE Payment date: 20130122 Year of fee payment: 12 Ref country code: DK Payment date: 20130304 Year of fee payment: 12 Ref country code: FR Payment date: 20130219 Year of fee payment: 12 Ref country code: GB Payment date: 20130327 Year of fee payment: 12 Ref country code: FI Payment date: 20130314 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20130327 Year of fee payment: 12 Ref country code: GR Payment date: 20130128 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20130322 Year of fee payment: 12 Ref country code: PT Payment date: 20130117 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CY Payment date: 20130322 Year of fee payment: 12 Ref country code: DE Payment date: 20130430 Year of fee payment: 12 Ref country code: BE Payment date: 20130304 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20130327 Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50210350 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: PT Ref legal event code: MM4A Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 20140929 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: V1 Effective date: 20141001 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140327 Ref country code: FI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140327 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140327 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: EUG |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 365230 Country of ref document: AT Kind code of ref document: T Effective date: 20140327 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20140327 |
|
REG | Reference to a national code |
Ref country code: GR Ref legal event code: ML Ref document number: 20070402614 Country of ref document: GR Effective date: 20141002 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140328 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20141128 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140929 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50210350 Country of ref document: DE Effective date: 20141001 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140331 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20141001 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140327 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140327 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140331 Ref country code: GR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20141002 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20141001 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140327 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140327 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20150424 |
|
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: 20140328 |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: EBP Effective date: 20140331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140327 |