EP2352607A2 - Procédé de fixation amovible d'une brique ou douille de balayage réfractaire ainsi que contenant pour métal en fusion - Google Patents

Procédé de fixation amovible d'une brique ou douille de balayage réfractaire ainsi que contenant pour métal en fusion

Info

Publication number
EP2352607A2
EP2352607A2 EP09760487A EP09760487A EP2352607A2 EP 2352607 A2 EP2352607 A2 EP 2352607A2 EP 09760487 A EP09760487 A EP 09760487A EP 09760487 A EP09760487 A EP 09760487A EP 2352607 A2 EP2352607 A2 EP 2352607A2
Authority
EP
European Patent Office
Prior art keywords
sleeve
refractory
opening
purging plug
gap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09760487A
Other languages
German (de)
English (en)
Other versions
EP2352607B1 (fr
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/fr
Application granted granted Critical
Publication of EP2352607B1 publication Critical patent/EP2352607B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • 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
    • 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.
  • BEST ⁇ TIGUNGSKOPK cal refractory sleeves each forming a spout opening, inserted into appropriately trained hole stone 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.
  • 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.
  • This object is achieved according to the invention by a method having the features of claim 1 and by a container according to claim 7.
  • 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 pre-wear of the perforated brick can be automatically remedied when changing the sink or the sleeve (the refractory mass filling a gap between the perforated brick opening and the sink or the sleeve is also distributed to the worn areas of the perforated brick).
  • FIG. 1 shows a part of a container for molten metal with a refractory perforated stone inserted in an opening and a built-in perforated brick refractory purge to be replaced;
  • Fig. 2 shows the container part of Figure 1 with a new refractory sink.
  • Fig. 3 is a representation corresponding to Figure 1 with another variant of a refractory purging plug.
  • FIG. 4 shows a part of a molten metal container with a perforated brick inserted in an opening and a refractory sleeve installed in the perforated brick and forming a pour opening, which is to be replaced;
  • Fig. 5 shows a further imple mentation of the perforated stone and the built-in, forming a spout opening, new refractory sleeve.
  • a part of a container 1 for molten metal for example, 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 sink 10 is used according to the invention consists of two in one piece (prefabricated), coaxial parts 1 1, 12 consists.
  • 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 material, 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 sink 10 'which is installed in a perforated block 5' and which has a cylindrical outer surface 10a. Between this outer surface 10a and a cylindrical perforated stone opening 6 'of the perforated brick 5' there is again a gap 15 'which can be filled with a refractory mass.
  • the installation and removal of the sink 10 ' is carried out in the same manner as described above.
  • a drilling tool 16 ' is indicated, with which the refractory material for the expansion 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 be quite conically tapered or widened in a vertical direction, or angular in horizontal cross section, and then for removing the refractory mass instead of drilling tools 16, 16 'according to FIGS. 1 and 3, milling tools such as e.g. End mill would use.
  • refractory sleeves which form a pouring opening can also be provided in accordance with the invention.
  • chende openings of the container for molten metal or in the hole bricks used there are installed. These are sleeves, to each of which the uppermost closure plate of a sliding closure connects, with which the spout opening can be closed or kept open.
  • FIG. 4 shows a perforated brick 25 with a perforated stone opening 26 installed in an opening 24 of the container 1 for molten metal.
  • a refractory sleeve 30 having a pouring opening 31 is inserted into the perforated brick opening 26.
  • an annular gap 35 is present, which is filled with a refractory material.
  • the perforated stone 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 'is associated with the spout opening 31'.
  • an annular gap 35' is present, which is filled with a refractory material.
  • the sleeve could also consist of two co-manufactured (prefabricated) coaxial parts, of which the inner would have a conical outer shape and the outer 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 'of FIG. 4 and 5 is analogous to the already described installation and removal of the purge stones 10 and 10' of FIG. 1 to 3.
  • the refractory mass with advantage brought out with a drilling tool 36 to bring out a worn sleeve (see Fig. 4).
  • the gap has a shape other than an annular shape (for example, square 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 pressing in (see feeder 38 in FIG.
  • 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)

Abstract

L'invention concerne un contenant pour métal en fusion avec au moins une ouverture (4 ; 24) dans laquelle est montée une brique perforée réfractaire (5 ; 5' ; 25 ; 25'). Dans l'ouverture de la brique perforée (6 ; 6' ; 26 ; 26') est insérée une brique de balayage réfractaire (10 ; 10') ou une douille réfractaire (30 ; 30') formant une ouverture de coulée (31 ; 31'). Il est formé entre l'ouverture de la brique perforée (6, 6' ; 26 ; 26') et la brique de balayage (10 ; 10') ou la douille (30 ; 30') une fente définie (15 ; 15' ; 35 ; 35') qui est remplie d'une pâte réfractaire. Cette pâte réfractaire est faite dans un matériau autorisant une élimination aisée par perçage ou fraisage afin de permettre le remplacement de la brique de balayage (10 ; 10') ou de la douille (30 ; 30'). De cette manière, on évite les longs travaux de nettoyage ainsi que le risque de détériorer la brique perforée.
EP09760487.0A 2008-11-17 2009-11-17 Procédé de fixation amovible d'une brique ou douille de balayage réfractaire ainsi que contenant pour métal en fusion Not-in-force EP2352607B1 (fr)

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 (fr) 2008-11-17 2009-11-17 Procédé de fixation amovible d'une brique ou douille de balayage réfractaire ainsi que contenant pour métal en fusion

Publications (2)

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

Family

ID=41508873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09760487.0A Not-in-force EP2352607B1 (fr) 2008-11-17 2009-11-17 Procédé de fixation amovible d'une brique ou douille de balayage réfractaire ainsi que contenant pour métal en fusion

Country Status (9)

Country Link
US (1) US8906290B2 (fr)
EP (1) EP2352607B1 (fr)
JP (1) JP5620394B2 (fr)
KR (1) KR101580005B1 (fr)
CN (2) CN102281966A (fr)
CH (1) CH699948A2 (fr)
ES (1) ES2525808T3 (fr)
PL (1) PL2352607T3 (fr)
WO (1) WO2010054853A2 (fr)

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
DE102013020732C9 (de) * 2013-12-10 2020-08-06 Refratechnik Holding Gmbh Verwendung eines grobkeramischen, feuerfesten Erzeugnisses
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

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JPS5653847A (en) * 1979-10-05 1981-05-13 Nisshin Steel Co Ltd Porous plug for gas blowing of molten metal vessel
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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
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JPH05311262A (ja) * 1992-05-13 1993-11-22 Asahi Glass Co Ltd ポーラスプラグ
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Also Published As

Publication number Publication date
WO2010054853A2 (fr) 2010-05-20
JP5620394B2 (ja) 2014-11-05
WO2010054853A3 (fr) 2010-07-08
CN105880545A (zh) 2016-08-24
US20110241268A1 (en) 2011-10-06
EP2352607B1 (fr) 2014-10-08
JP2013510718A (ja) 2013-03-28
CN102281966A (zh) 2011-12-14
CH699948A2 (de) 2010-05-31
ES2525808T3 (es) 2014-12-30
US8906290B2 (en) 2014-12-09
PL2352607T3 (pl) 2015-03-31
KR20110084443A (ko) 2011-07-22
KR101580005B1 (ko) 2015-12-24

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