EP1101825A1 - Feuerfester keramischer Gasspülstein - Google Patents
Feuerfester keramischer Gasspülstein Download PDFInfo
- Publication number
- EP1101825A1 EP1101825A1 EP00120224A EP00120224A EP1101825A1 EP 1101825 A1 EP1101825 A1 EP 1101825A1 EP 00120224 A EP00120224 A EP 00120224A EP 00120224 A EP00120224 A EP 00120224A EP 1101825 A1 EP1101825 A1 EP 1101825A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- ceramic body
- ceramic
- purging plug
- plug according
- 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
- 239000000919 ceramic Substances 0.000 title claims abstract description 81
- 238000011010 flushing procedure Methods 0.000 title claims description 6
- 239000011449 brick Substances 0.000 title 1
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 13
- 239000011214 refractory ceramic Substances 0.000 claims abstract description 3
- 238000010926 purge Methods 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000004575 stone Substances 0.000 abstract description 12
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011470 perforated brick Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000626 liquid-phase infiltration Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
Images
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
- F27D3/16—Introducing a fluid jet or current into the charge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/002—Treatment with gases
- B22D1/005—Injection assemblies therefor
-
- 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
- C21C5/48—Bottoms or tuyéres of converters
Definitions
- the invention relates to a refractory ceramic Gas purging plug, as it has been in secondary metallurgy has long been known.
- Such gas purging stones are usually in the wall or in the bottom of the metallurgical treatment vessel and mostly used with a perforated brick.
- a Overview of different types of training The Radex-Rundschau 1987, 288 gives gas purging stones gas flushing devices can be installed in particular with so-called directional porosity and those with structure so-called undirected porosity.
- Purge the gas in a steel ladle for example are in particular a quick temperature and Concentration compensation of the steel bath and its Cleaning.
- non-metallic inclusions with the help of the gas flow should be faster in the on the Melting pool slag are transported.
- Gas flow demanded with gas purging stones that have a directed porosity most economically can be achieved. It can be directed Porosity through gas channels with circular cross section or Gas channels with slit-shaped cross-section reached become.
- gas ducts with a circular cross section a diameter of preferably ⁇ 1 mm and gas channels with slot cross-section also a maximum width of preferably have ⁇ 1 mm. In this case it is Length of the gas slots of minor importance.
- the cleaning of the steel bath can be done by many small ones Best to reach gas bubbles at low pressure.
- Here shows a gas purging plug with undirected porosity Advantages over a dishwasher with a directed Porosity.
- a dishwasher with undirected porosity points in the case a metal melt infiltration has the disadvantage that provided that the melt is frozen, only to a limited extent can be put back into operation. In any case this requires a significant gas pressure, which in Result causes the infiltrated zone is blown up. This will wear the Gas purging stones increased drastically.
- the invention has for its object a to offer generic gas purging plug with which one good cleaning of the steel bath is possible shows as little wear as possible and good Homogenization of the steel bath enables.
- the basic idea of the invention is the above described advantages of a gas purging plug with non-directional porosity with the advantages of a To connect the gas purging stone with directed porosity.
- the invention is based on the knowledge that form a gas purging plug so that it has sections with directed porosity under the passage of gas enables high pressure and over sections with undirected porosity the gas flow into many small Splits gas bubbles that the cleaning of the steel bath promote.
- the ceramic Body (with undirected porosity) be in one piece. At the further packing is at least along part of its peripheral surface (preferably over the entire height) is covered with a burnable material and then circumferentially from a gas-tight encased ceramic material.
- the gas-tight ceramic material can be made from a monolithic mass exist, for example in an annulus between a form and the ceramic Body is filled; it is also possible the gastight ceramic material from one pre-assembled molded part, which on the ceramic body is put on.
- the burnable material can be, for example Film strips, for example an adhesive tape or an adhesive film.
- This part burns when the gas purging plug burns later and creates a slit-shaped gas channel (i.e. one directed porosity) in the interface area between the ceramic body and the surrounding gas-tight Material.
- a slit-shaped gas channel i.e. one directed porosity
- the attachment must be such that the strips in the area of the gas outlet side End face of the gas purging plug ends to supply gas in to allow a molten metal. On the other hand, it has to other end so that it is gas can be applied.
- the ceramic Body formed in the gas supply direction and divided at least one gas channel between corresponding ones Surface sections of adjacent parts of the ceramic Body trained.
- the at least one gas channel can pass through at least one channel-like depression in at least one of the corresponding surface sections formed adjacent parts of the ceramic body become.
- flushing devices are known as Slot washer is basically known, the individual parts of the ceramic body - outside the called slots - but made of a gas-tight material exist while according to the invention with undirected Porosity are formed.
- the cross-sectional shape of the gas purging plug and / or the ceramic body can basically be any. Out Installation reasons has changed in the past Decades a truncated cone shape for the Gas purging plug turned out to be advantageous. Independently of which, according to one embodiment, the ceramic Body have a rectangular cross section.
- the ceramic Body consists of at least two, for example, but also three or four "plates", where the slot-like channels mentioned between each corresponding surface sections of adjacent parts of the ceramic body are formed.
- spaced apart slit-shaped Channels in the interface area between the ceramic Body and the surrounding gastight material can also the entire peripheral surface of the ceramic body with a burnable, thin strip of material which later burns out (in case of fire) and such a circumferential gas slot between the ceramic Body and the gas-tight material creates.
- a supplement to this embodiment provides that ceramic body on a ceramic insert with to apply undirected or directed porosity, with the ceramic insert and the ceramic body a different cross-sectional geometry and / or can have different cross-sectional area.
- the ceramic body is on this Way through the gas-tight ceramic underneath it Material kept in addition.
- the ceramic body can over at least extend two thirds of the total height of the gas purging plug.
- the ceramic body can just like the one mentioned ceramic insert made of any refractory Material exist, for example a non-basic Dimensions.
- the gas purging device described has the following advantages: On the one hand, a high gas flow through the directed porosity (the gas channels, gas slots) is achieved; on the other hand, an advantageous gas bubble formation can be achieved via the undirected porosity of the ceramic body.
- Gas slots are usually either undirected pores or the gas slots are not infiltrates, so that normally at least one Gas purging section without delay after a Interruption can be reactivated.
- the density that envelops the porous ceramic body Mass consisting, for example, of refractory concrete can, at the same time prevents a leading Wear of an associated perforated inner surface into which the gas purging plug is used as it is like a sleeve protects the perforated brick.
- the reference number 10 according to FIG. 1 describes one Total gas purging plug. This consists of one ceramic body 12 with undirected porosity, the from an upper face l0s of the gas purging plug 10 over about two thirds of the total height of the Gas purging stones 10 extends downward and thereby in Cross section enlarged. At the lower end 12u with ceramic body 12 on a ceramic insert 14 undirected porosity that extends to the bottom End face 10u of the gas purging plug 10 runs from a metal sheet 16 is covered, which has a central Has opening 16o, into which a gas supply line 18th flows out, which is welded to the bottom plate 16.
- Both the ceramic body 12 and the ceramic Insert 14 are encased in a gas-tight material 20, which extends from the lower end 10u to the upper end face 10s of the gas purging plug 10 extends.
- Gas supplied through the gas supply line 18 flows through the gas purging plug 10 over the porous insert 14 and the ceramic body 12 as described below.
- the ceramic body 12 also has undirected porosity a square cross section on.
- the ceramic body 12 In the area of two opposite outer surfaces 12r, 121, i.e. in the interface area between the ceramic body 12 and the gas-tight material 20 each formed an approximately 0.5 mm wide slot 22, which extends over the entire height of the ceramic body 12 extends.
- FIG 2 shows accordingly that the gas purging plug 10 in addition an undirected porosity in the area of the body 12 with directed porosity (gas slots 22) in the Interface area between body 12 and gas-tight Material 20 is formed.
- the parts 12.1 and 12.2 are along their surfaces to the adjacent parts 12.2, 12.3 each with slit-like Recesses 22 formed together with the corresponding surfaces of the neighboring parts 12.2, 12.3 gas slots 22 in the sense of a directed Represent porosity.
- FIG. 4 shows a slightly modified embodiment, after which the ceramic body 12 consists of two parts 12.1, 12.2, which corresponds to parts 12.1, 12.2 Figure 3 are formed. That means that it also runs here between corresponding surface sections of the parts 12.1, 12.2 slot-shaped rinsing channels 22.
- the ceramic insert 14 shown in Figure 1 with undirected porosity has a truncated cone shape, that is a circular cross section, so that it as Residual strength indicator can be used as above shown.
- the gas is supplied via the gas supply line 18 through the ceramic insert 14 both over the undirected pores within the ceramic body 12 as well as in or around the ceramic body 12 extending slots 22 in a metallurgical melt.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Furnace Charging Or Discharging (AREA)
- Incineration Of Waste (AREA)
Abstract
Description
- mindestens einen keramischen Körper mit ungerichteter Porosität, der sich von einem gaszuführseitigen Ende bis zu einer gasauslaßseitigen Stirnfläche des Gasspülsteines erstreckt,
- ein gasdichtes keramisches Material, welches den keramischen Körper mindestens im Bereich seiner Umfangsfläche umgibt, wobei
- im Grenzflächenbereich zwischen dem keramischen Körper und dem gasdichten keramischen Material und/oder innerhalb des keramischen Körpers mindestens ein Gaskanal ausgebildet ist, der sich von einem gaszuführseitigen Ende bis zu der gasauslaßseitigen Stirnfläche des Gasspülsteines erstreckt.
Einerseits wird ein hoher Gasdurchfluß über die gerichtete Porosität (die Gaskanäle, Gasschlitze) erreicht; andererseits läßt sich über die ungerichtete Porosität des keramischen Körpers eine vorteilhafte Gasblasenausbildung erreichen.
- Figur 1:
- einen Längsschnitt durch einen erfindungsgemäßen Gasspülstein.
- Figur 2:
- einen Horizontalschnitt entlang der Ebene 2-2 gemäß Figur 1.
- Figur 3:
- einen Horizontalschnitt entlang der Ebene 2-2 nach Figur 1 für eine weitere Ausführungsform.
- Figur 4:
- einen Horizontalschnitt entlang der Ebene 2-2 nach Figur 1 für eine dritte Ausführungsform.
Claims (11)
- Feuerfester keramischer Gasspülstein (10) mit folgenden Merkmalen:1.1 mindestens einem keramischen Körper (12) mit ungerichteter Porosität, der sich von einem gaszuführseitigen Ende (12u) bis zu einer gasauslaßseitigen Stirnfläche (10s) des Gasspülsteins (10) erstreckt,1.2 einem gasdichten keramischen Material (20), welches den keramischen Körper (12) mindestens im Bereich seiner Umfangsfläche (12l, 12r, 12h, 12t) umgibt, wobei1.3 im Grenzflächenbereich zwischen dem keramischen Körper (12) und dem gasdichten keramischen Material (20) und/oder innerhalb des keramischen Körpers (12) mindestens ein schlitzförmiger Gaskanal (22) ausgebildet ist, der sich von einem gaszuführseitigen Ende (12u) bis zu der gasauslaßseitigen Stirnfläche (10s) des Gasspülsteins (10) erstreckt.
- Gasspülstein nach Anspruch 1, bei dem der keramische Körper (12) in Gaszuführrichtung geteilt ausgebildet ist und der mindestens eine Gaskanal (22) zwischen korrespondierenden Flächenabschnitten benachbarter Teile (12.1, 12.2, 12.3) des keramischen Körpers (12) ausgebildet ist.
- Gasspülstein nach Anspruch 2, bei dem der mindestens eine Gaskanal (22) durch mindestens eine kanalartige Vertiefung in mindestens einem der korrespondierenden Flächenabschnitte benachbarter Teile (12.1, 12.2, 12.3) des keramischen Körpers (12) ausgebildet ist.
- Gasspülstein nach Anspruch 1, bei dem der keramische Körper (12) einen Rechteckquerschnitt aufweist.
- Gasspülstein nach Anspruch 1, bei dem sich die Rechteckquerschnitte des keramischen Körpers (12) von seinem gaszuführseitigen Ende (12u) zur gasauslaßseitigen Stirnfläche (10s) des Gasspülsteins (10) verringern.
- Gasspülstein nach Anspruch 1, bei dem sich der im Grenzflächenbereich zwischen dem keramischen Körper (12) und dem gasdichten Material (20) verlaufende Gaskanal (22) um den gesamten keramischen Körper (12) herum erstreckt.
- Gasspülstein nach Anspruch 1, bei dem der keramische Körper (12) auf einem keramischen Einsatz (14) mit ungerichteter oder gerichteter Porosität aufliegt, wobei der keramische Einsatz (14) und der keramische Körper (12) eine unterschiedliche Querschnittsgeometrie aufweisen.
- Gasspülstein nach Anspruch 7, bei dem der keramische Einsatz (14) und der keramische Körper (12) eine unterschiedliche Querschnittsfläche aufweisen.
- Gasspülstein nach Anspruch 1, bei dem das gasdichte keramische Material (20) ein gegossenes oder gestampftes Material ist.
- Gasspülstein nach Anspruch 1, bei dem das gasdichte keramische Material (20) von einem geformten Bauteil gebildet wird.
- Gasspülstein nach Anspruch 1, bei dem sich der keramische Körper (12) über mindestens zwei Drittel der Gesamthöhe des Gasspülsteins (10) erstreckt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19954918 | 1999-11-16 | ||
| DE19954918A DE19954918C2 (de) | 1999-11-16 | 1999-11-16 | Feuerfester keramischer Gasspülstein |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1101825A1 true EP1101825A1 (de) | 2001-05-23 |
| EP1101825B1 EP1101825B1 (de) | 2003-07-16 |
Family
ID=7929107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00120224A Expired - Lifetime EP1101825B1 (de) | 1999-11-16 | 2000-09-26 | Feuerfester keramischer Gasspülstein |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1101825B1 (de) |
| AT (1) | ATE245202T1 (de) |
| DE (2) | DE19954918C2 (de) |
| ES (1) | ES2201981T3 (de) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003103877A1 (en) * | 2002-06-07 | 2003-12-18 | Vesuvius Crucible Company | Injection device and process for the injection of a fluid |
| DE10305232B3 (de) * | 2003-02-08 | 2004-08-05 | Refractory Intellectual Property Gmbh & Co.Kg | Feuerfester keramischer Gasspülstein |
| EP2111938B1 (de) | 2008-04-24 | 2017-04-19 | Calderys France | Spülstein zum Einblasen von Gas in einen Metallbehandlungsbehälter |
| WO2019145522A1 (en) | 2018-01-29 | 2019-08-01 | Refractory Intellectual Property Gmbh & Co. Kg | Gas purging plug, gas purging system, method for characterization of a gas purging plug and method for purging a metal melt |
| EP3517634B1 (de) | 2016-09-19 | 2022-08-10 | Korea Refractories Co., Ltd. | Mehrstufiger poröser stopfen |
| WO2024089097A1 (en) | 2022-10-27 | 2024-05-02 | Refractory Intellectual Property Gmbh & Co. Kg | Refractory gas purging plug and a method for the production of a refractory gas purging plug |
| WO2024089095A1 (en) | 2022-10-27 | 2024-05-02 | Refractory Intellectual Property Gmbh & Co. Kg | Refractory gas purging plug |
| WO2024089098A1 (en) | 2022-10-27 | 2024-05-02 | Refractory Intellectual Property Gmbh & Co. Kg | Refractory gas purging plug and method for controlling the conduction of gas to a refractory gas purging plug |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008029934B3 (de) * | 2008-06-26 | 2009-06-10 | Refractory Intellectual Property Gmbh & Co. Kg | Feuerfester keramischer Gasspülstein |
| EP2893992B1 (de) * | 2014-01-09 | 2015-12-30 | Refractory Intellectual Property GmbH & Co. KG | Gasspül-Element und zugehöriges Gasanschluss-Element |
| DE102014015325A1 (de) * | 2014-10-17 | 2016-04-21 | Pa-Ha-Ge Feuerfeste Erzeugnisse Gmbh & Co. Kg | Spüler mit gestapelten Einsätzen |
| UA126511C2 (uk) * | 2020-10-05 | 2022-10-19 | Товариство З Обмеженою Відповідальністю "Іннотех-Сплав" | Спосіб обробляння рідкого металу газовим середовищем в металургійній ємності та пристрій для його здійснення |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4340208A (en) * | 1979-04-25 | 1982-07-20 | Institut De Recherches De La Siderurgie Francaise | Refractory piece permeable to gases |
| DE3907500C1 (en) * | 1989-03-08 | 1990-08-23 | Radex-Heraklith Industriebeteiligungs Ag, Wien, At | Gas bubble brick with directed porosity and method for its manufacture |
| DE19542446A1 (de) * | 1995-11-14 | 1997-05-15 | Lorenz Doetsch | Feuerfeste Formplatten mit Gasführungskanälen |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3538498A1 (de) * | 1985-10-30 | 1987-05-07 | Didier Werke Ag | Einduesvorrichtung fuer metallurgische gefaesse |
| DE3802657C1 (de) * | 1988-01-29 | 1989-09-21 | Didier-Werke Ag, 6200 Wiesbaden, De | |
| DE3833502A1 (de) * | 1988-10-01 | 1990-04-05 | Didier Werke Ag | Gasspuelstein |
-
1999
- 1999-11-16 DE DE19954918A patent/DE19954918C2/de not_active Expired - Fee Related
-
2000
- 2000-09-26 DE DE50002898T patent/DE50002898C5/de not_active Expired - Lifetime
- 2000-09-26 EP EP00120224A patent/EP1101825B1/de not_active Expired - Lifetime
- 2000-09-26 AT AT00120224T patent/ATE245202T1/de active
- 2000-09-26 ES ES00120224T patent/ES2201981T3/es not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4340208A (en) * | 1979-04-25 | 1982-07-20 | Institut De Recherches De La Siderurgie Francaise | Refractory piece permeable to gases |
| DE3907500C1 (en) * | 1989-03-08 | 1990-08-23 | Radex-Heraklith Industriebeteiligungs Ag, Wien, At | Gas bubble brick with directed porosity and method for its manufacture |
| DE19542446A1 (de) * | 1995-11-14 | 1997-05-15 | Lorenz Doetsch | Feuerfeste Formplatten mit Gasführungskanälen |
Non-Patent Citations (1)
| Title |
|---|
| PAUL G ET AL: "BETRIEBSERFAHRUNGEN MIT GASSPULSTEINEN MIT GERICHTETER POROSITAT BEI DEN BADISCHEN STHALWERKEN AG", RADEX RUNDSCHAU,DE,GRAEFELFING, no. 1, 1987, pages 288 - 302, XP000106570 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003103877A1 (en) * | 2002-06-07 | 2003-12-18 | Vesuvius Crucible Company | Injection device and process for the injection of a fluid |
| AU2003249790B2 (en) * | 2002-06-07 | 2007-12-13 | Vesuvius Usa Corporation | Injection device and process for the injection of a fluid |
| DE10305232B3 (de) * | 2003-02-08 | 2004-08-05 | Refractory Intellectual Property Gmbh & Co.Kg | Feuerfester keramischer Gasspülstein |
| WO2004069450A1 (de) * | 2003-02-08 | 2004-08-19 | Refractory Intellectual Property Gmbh & Co. Kg | Feuerfester keramischer gasspülstein |
| CN100360259C (zh) * | 2003-02-08 | 2008-01-09 | 里弗雷克特里知识产权两合公司 | 耐火陶瓷的气体冲洗砖 |
| EP2111938B1 (de) | 2008-04-24 | 2017-04-19 | Calderys France | Spülstein zum Einblasen von Gas in einen Metallbehandlungsbehälter |
| EP3517634B1 (de) | 2016-09-19 | 2022-08-10 | Korea Refractories Co., Ltd. | Mehrstufiger poröser stopfen |
| WO2019145522A1 (en) | 2018-01-29 | 2019-08-01 | Refractory Intellectual Property Gmbh & Co. Kg | Gas purging plug, gas purging system, method for characterization of a gas purging plug and method for purging a metal melt |
| WO2024089097A1 (en) | 2022-10-27 | 2024-05-02 | Refractory Intellectual Property Gmbh & Co. Kg | Refractory gas purging plug and a method for the production of a refractory gas purging plug |
| WO2024089095A1 (en) | 2022-10-27 | 2024-05-02 | Refractory Intellectual Property Gmbh & Co. Kg | Refractory gas purging plug |
| WO2024089098A1 (en) | 2022-10-27 | 2024-05-02 | Refractory Intellectual Property Gmbh & Co. Kg | Refractory gas purging plug and method for controlling the conduction of gas to a refractory gas purging plug |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19954918A1 (de) | 2001-05-31 |
| EP1101825B1 (de) | 2003-07-16 |
| ES2201981T3 (es) | 2004-04-01 |
| DE50002898D1 (de) | 2003-08-21 |
| DE19954918C2 (de) | 2001-09-20 |
| DE50002898C5 (de) | 2008-11-06 |
| ATE245202T1 (de) | 2003-08-15 |
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