EP2352607B1 - Verfahren zur auswechselbaren befestigung eines feuerfesten spülsteines oder hülse sowie ein behälter für metallschmelze - Google Patents

Verfahren zur auswechselbaren befestigung eines feuerfesten spülsteines oder hülse sowie ein behälter für metallschmelze Download PDF

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Publication number
EP2352607B1
EP2352607B1 EP09760487.0A EP09760487A EP2352607B1 EP 2352607 B1 EP2352607 B1 EP 2352607B1 EP 09760487 A EP09760487 A EP 09760487A EP 2352607 B1 EP2352607 B1 EP 2352607B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
refractory
gap
opening
purge plug
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.)
Not-in-force
Application number
EP09760487.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2352607A2 (de
Inventor
Michael Klikovich
Leopold Kneis
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.)
Stopinc AG
Original Assignee
Stopinc 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 Stopinc AG filed Critical Stopinc AG
Priority to PL09760487T priority Critical patent/PL2352607T3/pl
Publication of EP2352607A2 publication Critical patent/EP2352607A2/de
Application granted granted Critical
Publication of EP2352607B1 publication Critical patent/EP2352607B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/02—Linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/08—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like for bottom pouring
    • 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
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/072—Treatment with gases
    • 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
    • C21C2250/00—Specific additives; Means for adding material different from burners or lances
    • C21C2250/08—Porous plug
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ

Definitions

  • the invention relates to a method for installing and removing a refractory sink or a refractory sleeve in a built-in container refractory hole stone according to the preamble of claim 1, and a container for molten metal for performing the method.
  • conical refractory purging pits via which gas is introduced into the molten metal, or conical refractory pods, each of which forms a pouring opening
  • conical refractory purging pits are conventionally used today in correspondingly formed perforated brick openings. They are separated from them by narrow mortar joints (about 1 to 3 mm wide).
  • narrow mortar joints about 1 to 3 mm wide.
  • a refractory filling of an annular gap according to the document EP-A-0 471 245 is disposed between a refractory lining and a gas purging plug. It is designed as a prefabricated deformable mounting layer adapted to the shape of an annular gap. This is to ensure that the annular gap is filled evenly in the installed state of the molding with this installation layer.
  • JP-A-01 195 240 there is disclosed a method of repairing by replacing the refractory lining and inserting a cylindrical refractory sleeve in which the refractory lining of a round flow tube is drilled out and this refractory sleeve is inserted to have a thickness approximately equal to the size eliminated. Mortar is then placed between the refractory lining and the cylindrical refractory sleeve.
  • This method is limited to the removal of a worn linings, but it is not used to replace a sleeve.
  • the present invention has for its object to provide a cost-effective method for installing and removing a refractory sink or a refractory sleeve or a container for molten metal in and out of a built-in container fireproof hole brick, with which the change of the sink or the sleeve considerably simplified and the risk of a change-induced hole stone damage is largely eliminated.
  • the change can also be automated.
  • the problems associated with so-called mortar joints pre-wear in the joint area, penetration of steel into the joints or even breakthrough risk) are also eliminated.
  • Any Vorverschleiss the perforated stone can be automatically remedied when changing the sinker or the sleeve (the gap between the hole stone opening and the sink or the sleeve filling refractory mass is also distributed to the worn areas of the perforated stone).
  • Fig. 1 and 2 is a part of a container 1 for molten metal, such as a so-called ladle for molten steel, shown, from the container only an outer steel shell 2 and a refractory lining 3 can be seen.
  • a refractory hole block 5 is inserted, which has a cylindrical hole stone opening 6.
  • a refractory purge 10 used according to the invention consists of two in one piece (prefabricated), coaxial parts 11, 12 consists.
  • the inner part 11 with a gas connection 13, which corresponds to a conventional sink, as used to introduce gas into the molten metal, has a conical outer surface 11a, the outer portion 12 a corresponding conical inner surface 12a.
  • the outer part 12, which actually assumes the function of a conventional perforated brick, has a cylindrical outer surface 12b. Between this outer surface 12b and the cylindrical hole stone opening 6 according to the invention an annular gap 15 is present, which is filled with a refractory material.
  • the gap width is preferably 10 to 50 mm.
  • a new purging plug 10 is introduced through a bottom opening 4a of the container 1 into the hole stone opening 6 by means of a suitable device (eg hoist, push rod, robot, etc.) and is positioned and fixed therein.
  • a suitable device eg hoist, push rod, robot, etc.
  • the mechanical introduction allows an exact centering.
  • the positioning of the new sink 10 in the hole stone opening 6 can be supported, for example, by laser measurement and / or optical methods.
  • a bottom plate 17 is placed on the container 1 and the gap 15 is filled with the refractory mass, which preferably takes place by means of a pump, by casting, spraying or impressions.
  • the supply 18 of the refractory mass is indicated. If the hole stone 5 already have worn areas, so no hole stone repair is necessary, since the pumping mass evenly distributed in the annular gap 15 and also on the worn areas of the perforated stone 5.
  • Fig. 3 shows a built in a perforated brick 5 'purging 10', which has a cylindrical outer surface 10a. Between this outer surface 10a and a cylindrical hole stone opening 6 'of the perforated brick 5', in turn, a fillable with a refractory mass gap 15 'is present. The installation and removal of the sink 10 'is carried out in the same manner as described above. In Fig. 3 in turn, a drilling tool 16 'is indicated, with which the refractory mass for the removal of the purge stone 10' from the annular gap 15 'can be drilled out.
  • the cylindrical configuration of the outer surface of the sink on the one hand and the hole stone opening on the other hand, from which results in an annular gap is advantageous, but not essential.
  • the gap could quite conically taper or widen vertically, or be square in horizontal cross-section, which is then to bring out the refractory mass instead of drilling tools 16, 16 'after Fig. 1 and 3 Milling tools such as end mill would use.
  • refractory sleeves that form a spout opening, in corresponding Openings of the container for molten metal or are installed in the hole stones used there.
  • Figure 4 shows a built-in an opening 24 of the container 1 for molten metal hole brick 25 with a hole stone opening 26.
  • a refractory sleeve 30 is inserted, which has a spout opening 31.
  • an annular gap 35 is present, which is filled with a refractory material.
  • the perforated brick opening 26 has an upper, conically widening part 26b which encloses a space 32 which is widened in diameter relative to the sleeve 30 and its spout opening 31.
  • this space 32 ' is provided in the sleeve 30' and the conically widening part 31a 'associated with the spout opening 31'.
  • an annular gap 35' is present, which is filled with a refractory material.
  • Fig. 1 and 2 could also be the sleeve of two in one piece made (prefabricated), coaxial parts, of which the inner would have a conical outer shape and the outer would have a corresponding conical inner shape. The outer part would then take over the function of a conventional hole stone.
  • the built-in container hole stone 5; 5 ';25; 25 ' forms a framing stone, which ensures the stability of the system.
  • the installation and removal of the sleeves 30 and 30 'after Fig. 4 and 5 takes place analogously to the already described installation and removal of the purge stones 10 and 10 'after Fig. 1 to 3 , From an annular gap, the refractory mass is brought out with advantage with a drilling tool 36 to bring out a worn sleeve (see. Fig. 4 ). If the gap has a shape other than an annular shape (eg angled in the horizontal cross section), the mass is milled out.
  • the filling of the gap present around the new sleeve positioned in the perforated brick opening is in turn preferably carried out by means of a pump, by casting, spraying or indenting (cf., Supply 38 in FIG Fig. 5 ).
  • any pre-wearing of the perforated stone can be automatically remedied when changing the sink or the sleeve (the gap between the hole stone opening and the sink or the sleeve filling refractory mass is also distributed to the worn areas of the hole stone).
  • the removal of the refractory mass can be done instead of using a drill or a milling cutter or the like by burning out by means of one or more lances.
  • the refractory mass is chosen in the case that can be burned out relatively easily and even automated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP09760487.0A 2008-11-17 2009-11-17 Verfahren zur auswechselbaren befestigung eines feuerfesten spülsteines oder hülse sowie ein behälter für metallschmelze Not-in-force EP2352607B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09760487T PL2352607T3 (pl) 2008-11-17 2009-11-17 Sposób wykonywania wymienialnego mocowania ogniotrwałej dyszy przepłukującej lub tulei oraz pojemnik na roztopiony metal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01801/08A CH699948A2 (de) 2008-11-17 2008-11-17 Behälter für Metallschmelze sowie ein Verfahren zur auswechselbaren Befestigung eines feuerfesten Spülsteins oder einer feuerfesten Hülse.
PCT/EP2009/008180 WO2010054853A2 (de) 2008-11-17 2009-11-17 Verfahren zur auswechselbaren befestigung eines feuerfesten spülsteines oder hülse sowie ein behälter für metallschmelze

Publications (2)

Publication Number Publication Date
EP2352607A2 EP2352607A2 (de) 2011-08-10
EP2352607B1 true EP2352607B1 (de) 2014-10-08

Family

ID=41508873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09760487.0A Not-in-force EP2352607B1 (de) 2008-11-17 2009-11-17 Verfahren zur auswechselbaren befestigung eines feuerfesten spülsteines oder hülse sowie ein behälter für metallschmelze

Country Status (9)

Country Link
US (1) US8906290B2 (ja)
EP (1) EP2352607B1 (ja)
JP (1) JP5620394B2 (ja)
KR (1) KR101580005B1 (ja)
CN (2) CN105880545A (ja)
CH (1) CH699948A2 (ja)
ES (1) ES2525808T3 (ja)
PL (1) PL2352607T3 (ja)
WO (1) WO2010054853A2 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011088619A1 (de) * 2011-12-14 2013-06-20 Sms Siemag Ag Verfahren zur Wartung und/oder Reparatur des Ausgussbereichs eines metallurgischen Gefäßes
DE102014205899A1 (de) 2013-03-28 2014-10-02 Sms Siemag Ag Vorrichtung zum Herausziehen eines Gasspülsteins aus einem metallurgischen Gefäß
DE202013012201U1 (de) * 2013-12-10 2015-08-03 Refratechnik Holding Gmbh Grobkeramisches feuerfestes Erzeugnis
CN104028740B (zh) * 2014-06-18 2017-01-18 莱芜钢铁集团有限公司 一种连铸中间包吹氩上水口座砖及其安装方法与应用
AT14854U1 (de) * 2015-07-03 2016-07-15 Plansee Se Behälter aus Refraktärmetall
CN110317921B (zh) * 2018-03-30 2021-04-06 上海梅山钢铁股份有限公司 一种转炉出钢口的快换方法
CN111438350B (zh) * 2020-05-21 2021-09-10 北京联合荣大工程材料股份有限公司 一种钢包工作衬砖的修补方法
CN113695563B (zh) * 2021-10-27 2022-01-18 北京利尔高温材料股份有限公司 一种钢包水口座砖的热补模具及其热补方法

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
CH581515A5 (ja) * 1975-01-23 1976-11-15 Metacon Ag
JPS5653847A (en) * 1979-10-05 1981-05-13 Nisshin Steel Co Ltd Porous plug for gas blowing of molten metal vessel
JPS62185822A (ja) * 1986-02-10 1987-08-14 Nippon Kokan Kk <Nkk> ガス吸込みプラグ
JPH0211970Y2 (ja) * 1986-07-23 1990-04-04
JPS63140028A (ja) * 1986-12-02 1988-06-11 Tokyo Yogyo Co Ltd ガス吹込用プラグのセツト方法
JPH0762168B2 (ja) 1988-01-28 1995-07-05 日新製鋼株式会社 真空脱ガス炉環流管の補修方法
DE3907383A1 (de) * 1988-12-22 1990-09-20 Cookson Plibrico Gmbh Einblasvorrichtung
DE4025956A1 (de) 1990-08-16 1992-02-20 Didier Werke Ag Feuerfeste fuellung eines ringspaltes bei einem metallurgischen gefaess
DE4201748C2 (de) * 1992-01-23 1994-01-05 Intocast Gmbh Verfahren zur Herstellung der feuerfesten Zustellung einer Gießpfanne
JPH05311262A (ja) * 1992-05-13 1993-11-22 Asahi Glass Co Ltd ポーラスプラグ
CN2132581Y (zh) * 1992-09-18 1993-05-12 丹东市建材研究所 一种环缝型透气砖
CN1244912A (zh) * 1997-04-02 2000-02-16 北美耐火公司 用于生产无烧制或无焦化耐火材料的耐火材料的共模压方法
DE102005018021B4 (de) * 2005-04-18 2007-05-03 esb Schweißbetrieb Burbach & Bender GmbH & Co. KG Ausziehvorrichtung für einen Gasspülstein

Also Published As

Publication number Publication date
CH699948A2 (de) 2010-05-31
JP5620394B2 (ja) 2014-11-05
ES2525808T3 (es) 2014-12-30
EP2352607A2 (de) 2011-08-10
PL2352607T3 (pl) 2015-03-31
WO2010054853A2 (de) 2010-05-20
US20110241268A1 (en) 2011-10-06
KR101580005B1 (ko) 2015-12-24
CN105880545A (zh) 2016-08-24
US8906290B2 (en) 2014-12-09
WO2010054853A3 (de) 2010-07-08
KR20110084443A (ko) 2011-07-22
JP2013510718A (ja) 2013-03-28
CN102281966A (zh) 2011-12-14

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