EP2855713A1 - VERFAHREN ZUM ÖFFNEN UND SCHLIEßEN EINER ABSTICHÖFFNUNG EINES METALLURGISCHEN SCHMELZGEFÄßES UND METALLURGISCHES SCHMELZGEFÄß - Google Patents
VERFAHREN ZUM ÖFFNEN UND SCHLIEßEN EINER ABSTICHÖFFNUNG EINES METALLURGISCHEN SCHMELZGEFÄßES UND METALLURGISCHES SCHMELZGEFÄßInfo
- Publication number
- EP2855713A1 EP2855713A1 EP13722764.1A EP13722764A EP2855713A1 EP 2855713 A1 EP2855713 A1 EP 2855713A1 EP 13722764 A EP13722764 A EP 13722764A EP 2855713 A1 EP2855713 A1 EP 2855713A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- opening
- melting vessel
- wall section
- tapping
- metallurgical melting
- 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 39
- 238000002844 melting Methods 0.000 title claims abstract description 21
- 230000008018 melting Effects 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010891 electric arc Methods 0.000 claims abstract description 10
- 229910001338 liquidmetal Inorganic materials 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000000155 melt Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/15—Tapping equipment; Equipment for removing or retaining slag
- F27D3/1509—Tapping equipment
-
- 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; Electric arc furnaces ; Tank furnaces
- F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for 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
- F27D3/1509—Tapping equipment
- F27D3/1518—Tapholes
-
- 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
- F27D3/1536—Devices for plugging tap holes, e.g. plugs stoppers
-
- 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
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0057—Fast-outlet or inlet means
Definitions
- the invention relates to a method for opening and closing a tapping opening of a metallurgical melting vessel, in particular an electric arc furnace, in the bottom region of a wall portion is arranged with an opening, wherein below the opening, a device for opening and closing the tapping opening is arranged. Furthermore, the invention relates to a metallurgical melting vessel.
- WO 2005/024069 A2 discloses a tapping device for a melting vessel. On a tapping channel here a nozzle replaceable placed. The nozzle is positioned by means of a nozzle changer and replaced by a new nozzle after each tapping or after two or more taps. The device is designed relatively expensive.
- EP 1 172 162 A1 shows a solution in which two linearly arranged linear slides are provided in the region of the tapping opening. By appropriate control of the slide, a free-flowing filling compound is introduced into the intermediate space between the slides in order to close the tapping opening again after tapping.
- Another problem is that a high level of security must be ensured, ie. H. the proper functioning of the components during tapping (safety against tapping runners).
- the invention is therefore based on the object to provide a method of the type mentioned above and a melt-metallurgical vessel, with which it is possible to carry out the tapping cost and safely.
- the device used should be simple in design. The same process conditions should be guaranteed for every tapping. The tapping should be carried out in a safe manner, so that tapping can be safely avoided.
- the solution of this object by the invention according to the method is characterized in that below the opening of Wandungsabitess a device for moving block elements is arranged in one direction, which is perpendicular to the surface normal of the Wandungsabitess in the region of the opening (ie in the tangential direction of the Wandungsabêt or in the plane of the Wandungsabitess), wherein the device holds the block elements on the Wandungsabrough so that these sealingly on Abut wall portion, wherein for closing the tapping a block element is pushed by the device under the opening, which is free of passage openings, and wherein for opening the tapping a block element is pushed by the device under the opening, which has at least one passage opening, so that can drain through the passage opening in the block element liquid metal from the melting vessel.
- the block elements are translationally displaced by the device in the direction which is perpendicular to the surface normal of the wall portion in the region of the opening.
- a new block element For each closing of the tap opening, a new block element is preferably used; Accordingly, a new block element can be used for each opening of the tap hole.
- the passage opening in the block element is vorzugswiese at least partially filled with slider sand prior to placement under the opening.
- the proposed metallurgical melting vessel is characterized in that the device has a guide for displacing block elements in one direction, which is perpendicular to the surface normal of the wall section in the region of the opening, and at least one actuator for displacing the block elements.
- the guide is preferably designed to hold the block elements sealingly on the wall section.
- the guide is preferably a linear guide. It is also conceivable, however, an arcuate guide on which the block elements can be performed rotatory.
- the actuator is preferably a hydraulic piston-cylinder system.
- the block elements are preferably cuboid.
- the invention proposal is based on alternating nozzles and shut-off blocks, with which the tapping can be opened and closed automatically.
- the tapping can be opened and closed automatically.
- a plugging machine is used for filling the pusher sand through the alumina plug.
- the proposed procedure is preferably used on fixed incinerators. However, it is not excluded that the proposal according to the invention is also used on non-fixed aggregates.
- the preferred application of the invention are smelting units such as electric arc furnaces (SAF-Submerged Are Furnace, so-called Contiarc ovens).
- FIG. 1 shows schematically the side view of an electric arc furnace, wherein a
- Tapping opening in the bottom area of the furnace is closed
- FIG. 2 schematically shows the side view of the electric arc furnace according to FIG. 1, wherein the tapping opening is now open for the outflow of melt
- FIG. Fig. 3 shows schematically the side view of the electric arc furnace according to Fig. 1, wherein the tapping opening is now closed again
- FIG. 2 schematically shows the side view of the electric arc furnace according to FIG. 1, wherein the tapping opening is now open for the outflow of melt
- FIG. Fig. 3 shows schematically the side view of the electric arc furnace according to Fig. 1, wherein the tapping opening is now closed again
- Fig. 4 is an enlarged view of the region of the tap opening in the status shown in FIG. 2, that is with the tap opening open.
- a metallurgical melting vessel 2 is sketched in the form of electric arc furnace.
- scrap is liquefied by 12 energy is entered in a known manner by means of electrodes.
- melt 16 is formed, which occupies a certain level in the vessel 2.
- the vessel has a wall with a bottom region 3, in which a tapping opening 1 is present, can be discharged via the melt 16 from the vessel 2.
- the tapping opening 1 in a defined manner to open and close again.
- an opening 5 is present in a wall section 4 of the bottom area 3, which opening can be opened or closed from below.
- a device 6 is provided, which will be described in more detail below.
- a refractory protective tube 15 is arranged above the opening 5.
- a filling tube 13 for slider sand is present, at the lower end of a bell 14 is arranged for slag-free tapping.
- the opening and closing of the opening 5 in the bottom region 4 of the vessel takes place through the use of block elements 7, 8, which have a cuboid shape.
- a first type of block elements 7 consists of a refractory body, which is free of channels.
- a second type of block elements 8 is also provided which have a passage opening 9 and act as an outlet nozzle for liquid metal.
- Said block elements 7, 8 are selectively displaced by the device 6 in a direction T which is perpendicular to the surface normal of the wall section 4 in the region of the opening 5, ie there is a displacement in the plane passing through the underside of the wall region 4 of the vessel is defined; it is therefore a tangential displacement along the surface of the wall region 4.
- a block member 7 has been pushed by an actuator 1 1 of the device 6 directly under the opening 5, so that the vessel 2 is sealed and consequently no melt 16 can escape.
- scrap is melted in the vessel, thus producing a certain level of melt 16 in the vessel 2.
- the opening 5 in the bottom region 3 is in this case filled with slider sand.
- Fig. 2 it is shown that the vessel 2 is open for the tapping below, d. H. the opening 5 is released, so that melt 16 can flow out of the vessel 2.
- a block element 8 with passage opening 9 has been pushed by the actuator 1 1 under the opening 5, so that now melt 16 can flow out of the vessel 2.
- Fig. 2 is indicated by an arrow that the previously inserted block element 7 was ejected; it is disposed of.
- Fig. 3 is again indicated by an arrow that used block elements 7, 8 - now the block element 8 - ejected and disposed of.
- Fig. 4 details of the structure of the device 6 can be seen. It can be seen that the block elements 7, 8 are moved to a (linear) guide 10 in the direction T, to which the piston-cylinder system 1 1 is used.
- the block elements 7, 8 must bear sealingly against the underside of the wall section 4 in order to prevent the melt 16 from escaping from the vessel 2.
- an upward force on the block elements 7, 8 is exerted by the linear guide 10, so that these elements lie clean on the underside of the wall section 4.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012209504A DE102012209504A1 (de) | 2012-06-05 | 2012-06-05 | Verfahren zum Öffnen und Schließen einer Abstichöffnung eines metallurgischen Schmelzgefäßes und metallurgisches Schmelzgefäß |
| PCT/EP2013/060120 WO2013182395A1 (de) | 2012-06-05 | 2013-05-16 | VERFAHREN ZUM ÖFFNEN UND SCHLIEßEN EINER ABSTICHÖFFNUNG EINES METALLURGISCHEN SCHMELZGEFÄßES UND METALLURGISCHES SCHMELZGEFÄß |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2855713A1 true EP2855713A1 (de) | 2015-04-08 |
| EP2855713B1 EP2855713B1 (de) | 2016-07-13 |
Family
ID=48444392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13722764.1A Not-in-force EP2855713B1 (de) | 2012-06-05 | 2013-05-16 | VERFAHREN ZUM ÖFFNEN UND SCHLIEßEN EINER ABSTICHÖFFNUNG EINES METALLURGISCHEN SCHMELZGEFÄßES UND METALLURGISCHES SCHMELZGEFÄß |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9200846B2 (de) |
| EP (1) | EP2855713B1 (de) |
| KR (1) | KR101705266B1 (de) |
| DE (1) | DE102012209504A1 (de) |
| RU (1) | RU2593042C1 (de) |
| WO (1) | WO2013182395A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012209504A1 (de) * | 2012-06-05 | 2013-12-05 | Sms Siemag Ag | Verfahren zum Öffnen und Schließen einer Abstichöffnung eines metallurgischen Schmelzgefäßes und metallurgisches Schmelzgefäß |
| DE102015113241A1 (de) | 2015-08-11 | 2017-02-16 | Rhm Rohstoff-Handelsgesellschaft Mbh | Verfahren zum Einbringen von Zuschlagstoffen in Metallschmelzen |
| CN109128125A (zh) * | 2018-10-30 | 2019-01-04 | 马鞍山钢铁股份有限公司 | 一种连铸钢包无引流开浇装置及无引流开浇方法 |
| EP3851225A1 (de) * | 2020-01-15 | 2021-07-21 | Refractory Intellectual Property GmbH & Co. KG | Schiebeverschluss für ein metallurgisches gefäss |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3230646C1 (de) | 1982-08-13 | 1983-10-20 | Mannesmann AG, 4000 Düsseldorf | Verfahren und Vorrichtung zum Verschließen des Abstichloches eines feststehenden, nicht kippbaren Elektro-Metallschmelzofens |
| DE3230107A1 (de) * | 1982-08-13 | 1984-03-01 | Raimund Dipl.-Ing. 6238 Hofheim Brückner | Verwendung von keramischem fasermaterial bei feuerfesten verschleissteilen von schiebeverschluessen fuer fluessige metallschmelze enthaltende gefaesse sowie schiebeverschluss mit feuerfesten verschleissteilen aus keramischem fasermaterial |
| JPH05200534A (ja) * | 1992-01-28 | 1993-08-10 | Kawasaki Steel Corp | 取鍋出鋼口からの詰め砂排出処理装置 |
| BE1005987A3 (fr) * | 1992-06-16 | 1994-04-12 | Int Ind Eng Sa | Dispositif de regulation d'un debit de coulee. |
| JP2704817B2 (ja) * | 1992-11-19 | 1998-01-26 | 新日本製鐵株式会社 | 残湯残滓排出装置 |
| DE4316669A1 (de) | 1993-05-13 | 1994-11-17 | Mannesmann Ag | Vorrichtung zum Verschließen des Bodenabstichs eines metallurgischen Gefäßes |
| FR2740368B1 (fr) * | 1995-10-27 | 1997-12-12 | Vesuvius France Sa | Procede de reutilisation de plaques de fermeture a tiroir et plaque pour cette fermeture |
| FR2745210B1 (fr) | 1996-02-28 | 1998-04-30 | Vesuvius France Sa | Unite coulissante pour un conteneur metallurgique, et plaque associee |
| DE19641169C1 (de) | 1996-10-08 | 1998-05-28 | Didier Werke Ag | Verfahren und Vorrichtung zum disontinuierlichen Abstechen von Schmelzen |
| JP3031541B2 (ja) | 1997-04-14 | 2000-04-10 | 住友重機械鋳鍛株式会社 | 連続鋳造機のタンディッシュノズル交換装置 |
| JP3416531B2 (ja) * | 1998-07-22 | 2003-06-16 | Jfeエンジニアリング株式会社 | ノズル交換装置 |
| US6210531B1 (en) | 1998-10-26 | 2001-04-03 | Px Technologies, Ltd. | Forming machines |
| JP3364458B2 (ja) * | 1999-10-26 | 2003-01-08 | 日本サーモケミカル株式会社 | 金属溶湯収容器用摺動開閉装置のノズル充填材 |
| FR2800309B1 (fr) * | 1999-10-28 | 2001-11-30 | Commissariat Energie Atomique | Procede et dispositif de soutirage d'un materiau fondu contenu dans un creuset |
| 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 |
| DE10054269A1 (de) | 2000-11-02 | 2002-05-08 | Sms Demag Ag | Verfahren und Vorrichtung zum Verschließen und Öffnen eines Schmelzgefäßes |
| WO2005024069A2 (de) | 2003-08-29 | 2005-03-17 | Stopinc Aktiengesellschaft | Abstichvorrichtung für ein schmelzgefäss, insbesondere für einen konverter |
| RU2339887C2 (ru) * | 2006-05-29 | 2008-11-27 | Техком Импорт Экспорт Гмбх | Промежуточное устройство для отсечения шлака от металла при выпуске их в виде расплава из плавильного агрегата |
| WO2011009579A1 (de) | 2009-07-20 | 2011-01-27 | Fuchs Technology Holding Ag | Abdicht- und verfüllvorrichtung für einen metallurgischen ofen, metallurgischer ofen und verfahren zum abstechen eines metallurgischen ofens |
| DE102012209504A1 (de) * | 2012-06-05 | 2013-12-05 | Sms Siemag Ag | Verfahren zum Öffnen und Schließen einer Abstichöffnung eines metallurgischen Schmelzgefäßes und metallurgisches Schmelzgefäß |
-
2012
- 2012-06-05 DE DE102012209504A patent/DE102012209504A1/de not_active Withdrawn
-
2013
- 2013-05-16 KR KR1020147032355A patent/KR101705266B1/ko not_active Expired - Fee Related
- 2013-05-16 WO PCT/EP2013/060120 patent/WO2013182395A1/de not_active Ceased
- 2013-05-16 US US14/405,250 patent/US9200846B2/en not_active Expired - Fee Related
- 2013-05-16 EP EP13722764.1A patent/EP2855713B1/de not_active Not-in-force
- 2013-05-16 RU RU2014153622/02A patent/RU2593042C1/ru not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013182395A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012209504A1 (de) | 2013-12-05 |
| EP2855713B1 (de) | 2016-07-13 |
| KR101705266B1 (ko) | 2017-02-09 |
| KR20140146660A (ko) | 2014-12-26 |
| WO2013182395A1 (de) | 2013-12-12 |
| US20150145184A1 (en) | 2015-05-28 |
| RU2593042C1 (ru) | 2016-07-27 |
| US9200846B2 (en) | 2015-12-01 |
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