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WO2005001359A1 - Ouvrage de maçonnerie a l'epreuve des flammes et pierres a l'epreuve des flammes destinees a cet ouvrage de maçonnerie a produire - Google Patents

Ouvrage de maçonnerie a l'epreuve des flammes et pierres a l'epreuve des flammes destinees a cet ouvrage de maçonnerie a produire Download PDF

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Publication number
WO2005001359A1
WO2005001359A1 PCT/EP2003/006951 EP0306951W WO2005001359A1 WO 2005001359 A1 WO2005001359 A1 WO 2005001359A1 EP 0306951 W EP0306951 W EP 0306951W WO 2005001359 A1 WO2005001359 A1 WO 2005001359A1
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WIPO (PCT)
Prior art keywords
stones
weight
masonry
masonry according
carbon
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.)
Ceased
Application number
PCT/EP2003/006951
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German (de)
English (en)
Inventor
Helge Jansen
Heinrich Grosse Daldrup
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.)
Refratechnik Holding GmbH
Original Assignee
Refratechnik Holding GmbH
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 Refratechnik Holding GmbH filed Critical Refratechnik Holding GmbH
Priority to DE10394173.8T priority Critical patent/DE10394173B4/de
Priority to PCT/EP2003/006951 priority patent/WO2005001359A1/fr
Priority to AU2003304251A priority patent/AU2003304251A1/en
Publication of WO2005001359A1 publication Critical patent/WO2005001359A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/013—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics containing carbon
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62665—Flame, plasma or melting treatment
    • 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
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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    • C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
    • C04B2235/3865—Aluminium nitrides
    • C04B2235/3869—Aluminium oxynitrides, e.g. AlON, sialon
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    • C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
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    • C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
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    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
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    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5292—Flakes, platelets or plates

Definitions

  • the invention relates to fireproof masonry and refractory bricks for the refractory delivery of industrial furnaces in which non-ferrous metals (non-ferrous metals) such as copper, lead, zinc, nickel or the like. are melted in an essentially oxidizing atmosphere at temperatures above 700 ° C., in particular above 900 ° C.
  • non-ferrous metals such as copper, lead, zinc, nickel or the like.
  • Copper, lead, zinc, nickel or the like are melted on an industrial scale in various vessels (Pierce-Smith converter, QSL reactor, various shaft furnaces, etc.) The melting process is carried out both reducing and oxidizing.
  • the so-called running time of the ovens depends, among other things. also on the type of refractory brick lining, which on the one hand protects the metal jacket of the furnace from the effects of high melting material, flame and atmospheric temperatures and on the other hand reduces heat losses.
  • the furnace lining is usually exposed to high temperature changes, high mechanical and chemical stresses.
  • the changes in temperature result from the batch mode and the blowing in of cold process materials.
  • Mechanical stresses are caused by rotary movements of the furnace.
  • the masonry is chemically stressed by the process slags and metal melts and by volatile connections in the furnace atmosphere.
  • These industrial furnaces are delivered or lined with fired refractory bricks, essentially with refractory bricks based on MgO-Cr 2 0 3 or MgO.
  • the furnaces are divided into different zones in terms of brickwork, because the zones are subjected to different loads during operation.
  • the QSL reactor With the QSL reactor, a distinction is made, for example, between the reduction area, the oxidation area and the associated nozzle zones.
  • the wear of the FF material is mainly due to chemical corrosion from slags and other process materials as well as flaking of infiltrated layers due to temperature changes.
  • these fired refractory products have an open porosity that is in the range between 13 and 20 vol. % lies.
  • Process materials such as slags, melts or gases can infiltrate into these open pores and decompose the stone through chemical reactions and / or lead to completely changed thermomechanical properties of the structure than those of the original refractory material. Changing chemical attacks and changing thermal and thermomechanical loads lead to accelerated wear and damage.
  • This application-relevant optimization essentially includes a change in the chemical-mineralogical composition of the stones with the aim of, for example, increasing their corrosion resistance and optimizing the grain structure, the pressing pressures and the firing temperatures.
  • An example are directly bonded MgO-Cr 2 0 3 stones based on simultaneous sintering or fused granules, which usually have a high Corrosion resistance and density guarantee as normal magnesite chromite stones.
  • these measures often worsen the thermo-mechanical properties of the stones, because at the same time they become less flexible due to the higher density.
  • the object of the invention is to provide fireproof masonry for furnaces and / or furnace areas operated with an oxidizing furnace atmosphere, which is considerably less infiltrable, but at the same time also has a superior resistance to temperature changes due to high flexibility.
  • unfired refractory bricks made of commonly used material, e.g. made of an above-mentioned refractory material with commonly used space frames, which are phosphate-bound or whose binder is a synthetic resin, tar or pitch, or which are bound by another suitable binder.
  • carbon in particular graphite
  • the graphite can be a natural or an artificial graphite, for example flake graphite. It has been shown that the graphite under the typical conditions (slags, temperatures) apparently behaves differently than expected and does not oxidize prematurely or too quickly in a damaging manner. The result is surprisingly a very little infiltrated layer of slag, which prevents oxygen from entering the stone.
  • the effect of graphite in combination with a carbon-based binder such as synthetic resin, tar or pitch is particularly effective, whereby the effect is particularly good when art resin is present. Phenolic resins (phenol resol) or phenolic resin novolak solutions are used in particular as synthetic resins.
  • the porosity in the graphite-containing zone is expediently less than 20% by volume, preferably less than 14% by volume, in particular the porosity is between 1 and 8% by volume.
  • the graphite content of the graphite-containing zone is preferably 2 to 30% by weight, in particular 5 to 20% by weight.
  • the carbon content from the binder plus graphite should be within the stated limits of 2 to 30% by weight, in particular 5 to 20% by weight.
  • the carbon-containing binder is preferably used in amounts of 2 to 5% by weight, in particular 2.5 to 4% by weight.
  • the graphite-containing zone additionally contains antioxidants, such as, for example, Al, Si, Mg, SiC, Si 3 N 4 , B 4 C, A1N, BN, SiAlON, or metallic alloys.
  • antioxidants such as, for example, Al, Si, Mg, SiC, Si 3 N 4 , B 4 C, A1N, BN, SiAlON, or metallic alloys.
  • the antioxidants can support the formation of the sealing zone on the surface and protect against too deep penetration of the oxidation into the graphite-containing zone, so that carbon reserves remain for later replication of defective sealing areas.
  • the invention provides for basic, carbon-containing refractory bricks, known per se, to be used for the masonry of oxidizing stoves or furnace areas, which are actually intended for use in reducing Atmosphere, for example for use in steel production.
  • Such basic refractory bricks are used, for example, to line iron and steel producing vessels such as converters, steel ladles or electric arc furnaces.
  • These likewise unfired carbon-containing stones ensure compatibility with most basic slags and the stability of the carbon, in particular also of the graphite, in the reducing atmosphere that prevails in the steel production.
  • the stones are bound with synthetic resin, pitch or tar and shaped in the cold state (phenol resin-bound or phenol resin-novolak-bound stones) or in the hot state (phenol resin-novolak-bound or tar or pitch-bound stones).
  • the stones also sometimes have antioxidants', which reduce the carbon loss due to their higher carbon against Sauerstoffäffinmaschine. The effect of the antioxidants is mainly based on an increase in gas access and an increase in strength.
  • Metals, carbides or nitrides for example Al, Mg, Si, SiC, B 4 C, Si 3 N 4 , A1N, BN or SiAlON, are typically used.
  • thermochemical resistance to attack by process materials in the manufacture of non-ferrous metals is largely guaranteed.
  • the first reaction products in situ block the pore channels in the stones and at least reduce the further access of oxygen and thus a further reaction of the latter with the carbon.
  • the graphite content particularly in combination with carbon-containing binders, brings about a desirably low modulus of elasticity E and, accordingly, a desirably low shear modulus G.
  • the graphite-containing zones or the stones are very thermally stable.
  • a partial or complete exchange of the MgO for other refractory minerals such as spinels, corundum, bauxite, andalusite, mullite, flint clay, chamotte, zirconium oxide, zirconium silicate does not affect the protective infiltration zone.
  • the oxidizing atmosphere surprisingly produces only a minimal carbon burnout on the hot stone side of the masonry, whereby the ashing that occurs also surprisingly leads to a type of sealing zone on the stone surface, probably due to sintering processes on the stone surface, without other material properties Stones get lost.
  • the infiltration zone forms very quickly and relatively permanently during operation. Flaking is less common, even with overheating and alternating loads.
  • stones are used for the hot furnace zones such as the nozzle zone, for example a QSL reactor for melting lead, which can withstand the attack of the hot process materials, for example stones based on MgO and graphite.
  • magnesia sintered magnesia or melted magnesia
  • the stones can also contain spinel, bauxite, zirconium oxide, zirconium silicate, or corundum, or magnesia can be completely replaced by these minerals, especially if the thermal conductivity is to be reduced.
  • the stones used according to the invention are not only used for the nozzle teeth, but also expediently for all other zones.
  • the entire rest of the QSL reactor can be delivered with stones based on MgO and carbon.
  • the carbon content of the stones should also be between 2 and 30% by weight in this case.
  • These stones can also contain antioxidants for the stated purpose.
  • This masonry consists of the described carbonaceous stones on the hot side, characterized by their content of refractory minerals, graphite and possibly antioxidants and on the furnace shell side of an insulating masonry consisting, for example, of a commercially available firebrick or another thermally insulating material, for example one easy fireclay.
  • Stones used according to the invention contain zonal graphite on the hot side.
  • the cold side of the stone can e.g. consist of the same material without graphite or a heat-insulating material.
  • the two-layer brick 1 consisting of the graphite-containing hot zone 2 and the cold insulation zone 3.
  • These stones can be made in one step and have a permanent bond between the two zones.
  • the insulating part and the carbon-containing part can also be glued to the carbon-containing part with an adhesive after each separate manufacture to facilitate installation.
  • Fig. 2 shows schematically a cross section through a QSL reactor and Fig. 3 by a Kaldo converter.
  • the nozzle zone 4, the oxidation part 5 and the reduction part 6 of the QSL reactor 9 as well as the upper and lower vessel 7, 8 of the Kaldo converter 10 are lined with carbon-containing magnesia stones.
  • the starting point is a tube furnace in which lead is smelted under typical operating conditions.
  • the zone division according to FIG. 2 is as follows:
  • a delivery according to the invention results as follows:
  • magnesia stone with a graphite content, with or without antioxidants;
  • composition of this stone is as follows:
  • Binder is phenol resol, which is added to the dry batch in an amount of 3.2% by weight.
  • the stone is available in the usual formats for the non-ferrous industry with a pressure of 160 MPa pressed and then annealed at a temperature of 200 ° C.
  • the stones are installed using the installation tools and methods that are common in the non-ferrous industry.
  • Melted magnesia flour ⁇ 0.1 mm, 10 - - is, preferably 13 wt.
  • magnesia stone with a graphite content, with or without antioxidants;
  • composition of this stone is as follows:
  • Binder is phenol resol, which is added to the dry batch in an amount of 3.2% by weight.
  • the stone is pressed in the usual formats for the non-ferrous industry with a pressure of 160 MPa and then annealed at a temperature of 200 ° C.
  • the stones are installed using the installation tools and methods that are common in the non-ferrous industry.
  • Sintered magnesia grain 0-4 mm 70 - 73 preferably 71% by weight sintered magnesia flour ⁇ 0.1 mm 11-16, preferably 14% by weight of flake graphite 8-12, preferably 10% by weight Aluminum powder 5, preferably 5 wt.
  • magnesia stone with a graphite content, with or without antioxidants;
  • composition of this stone is as follows:
  • Binder is phenol resol, which is added to the dry batch in an amount of 3.2% by weight.
  • the stone is pressed in the usual formats for the non-ferrous industry with a pressure of 160 MPa and then annealed at a temperature of 200 ° C.
  • the stones are installed using the installation tools and methods that are common in the non-ferrous industry.
  • the starting point is a converter in which lead is melted and refined under typical operating conditions.
  • the zone division according to FIG. 3 is as follows:
  • a delivery according to the invention results as follows:
  • composition of this stone is as follows:
  • Binder is phenol resol, which is added to the dry batch in an amount of 3.2% by weight.
  • the stone is pressed in the usual formats for the non-ferrous industry with a pressure of 160 MPa and then annealed at a temperature of 200 ° C.
  • the stones are installed using the installation tools and methods that are common in the non-ferrous industry.
  • Enamel magnesia grain 0-4 mm 70 74 preferably 72% by weight of melted magnesium flour ⁇ 0.1 mm 10 16, preferably 13% by weight flake graphite 8 12, preferably 10% by weight aluminum powder 2 4, preferably 3% by weight of B 4 C powder 1 3, preferably. 2% by weight
  • magnesia stone with a graphite content, with or without antioxidants; the composition of this stone is as follows: Magnesia grit 0-4 mm 50 - - 80 wt. -% magnesia flour ⁇ 0.1 mm 5 - - 25 Ge. -% flake graphite 2 - - 25 wt. -% aluminum powder 0 - - 5 wt. -% B 4 C powder 0 - - 5 wt. -%
  • Binder is phenol resol, which is added to the dry batch in an amount of 3.2% by weight.
  • the stone is pressed in the usual formats for the non-ferrous industry with a pressure of 160 MPa and then annealed at a temperature of 200 ° C.
  • the stones are installed using the installation tools and methods that are common in the non-ferrous industry:
  • Sintered magnesia grain 0-4 mm 69 - 73 preferably 71% by weight sintered magnesia flour ⁇ 0.1 mm 16-22, preferably 19% by weight of flake graphite 8-12, preferably 10 gaw. - ⁇

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

L'invention concerne un ouvrage de maçonnerie à l'épreuve des flammes dans un four industriel dans lequel on fait fondre au moins partiellement dans une atmosphère oxydante des métaux non ferreux tels que le cuivre, le plomb, le zinc, le nickel ou équivalent à des températures supérieures à 700 DEG C, notamment supérieures à 900 DEG C. L'ouvrage de maçonnerie est réalisé avec des pierres non cuites d'un matériau à l'épreuve des flammes et la zone superficielle côté flammes ou chaud des pierres de l'ouvrage de maçonnerie contient du carbone. L'invention concerne également une pierre à l'épreuve des flammes destinée à la production d'un ouvrage de maçonnerie.
PCT/EP2003/006951 2003-06-30 2003-06-30 Ouvrage de maçonnerie a l'epreuve des flammes et pierres a l'epreuve des flammes destinees a cet ouvrage de maçonnerie a produire Ceased WO2005001359A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE10394173.8T DE10394173B4 (de) 2003-06-30 2003-06-30 Verwendung von ungebrannten, feuerfesten Steinen in einem feuerfesten Mauerwerk
PCT/EP2003/006951 WO2005001359A1 (fr) 2003-06-30 2003-06-30 Ouvrage de maçonnerie a l'epreuve des flammes et pierres a l'epreuve des flammes destinees a cet ouvrage de maçonnerie a produire
AU2003304251A AU2003304251A1 (en) 2003-06-30 2003-06-30 Fire-resistant brickwork and fire-resistant bricks for producing the brickwork

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2003/006951 WO2005001359A1 (fr) 2003-06-30 2003-06-30 Ouvrage de maçonnerie a l'epreuve des flammes et pierres a l'epreuve des flammes destinees a cet ouvrage de maçonnerie a produire

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WO2005001359A1 true WO2005001359A1 (fr) 2005-01-06

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WO2007096246A3 (fr) * 2006-02-20 2008-01-17 Refratechnik Holding Gmbh Composition réfractaire en céramique industrielle, et produit réfractaire obtenu à partir de cette composition
CN100398494C (zh) * 2005-02-28 2008-07-02 宝山钢铁股份有限公司 转炉风口砖更换用火泥
CN104355634A (zh) * 2014-10-28 2015-02-18 北京利尔高温材料股份有限公司 一种氧化铝质电炉盖及其制备方法
CN105367096A (zh) * 2015-11-25 2016-03-02 南京联合荣大工程材料有限责任公司 一种耐火原料以及包含该原料的高炉压入料
WO2016102149A1 (fr) * 2014-12-22 2016-06-30 Refratechnik Holding Gmbh Produits réfractaires et leur utilisation
CN107314165A (zh) * 2017-06-30 2017-11-03 长兴华悦耐火材料厂 一种多功能耐火风管
CN108129142A (zh) * 2017-11-23 2018-06-08 宜兴瑞泰耐火材料有限公司 一种丙烷脱氢装置用耐火材料及其制备方法
CN109020582A (zh) * 2018-09-29 2018-12-18 武汉钢铁有限公司 一种钢包保温浇注料及其应用
US10207955B2 (en) 2014-12-22 2019-02-19 Refratechnik Holding Gmbh Refractories and use thereof
CN112592193A (zh) * 2021-03-02 2021-04-02 北京利尔高温材料股份有限公司 一种钢包包盖浇注料及其制备方法
WO2025208197A1 (fr) * 2024-04-05 2025-10-09 Shinagawa Refratários Do Brasil Ltda Système liant, composition de bloc réfractaire et procédé de préparation d'un bloc réfractaire

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CN100398494C (zh) * 2005-02-28 2008-07-02 宝山钢铁股份有限公司 转炉风口砖更换用火泥
WO2007096246A3 (fr) * 2006-02-20 2008-01-17 Refratechnik Holding Gmbh Composition réfractaire en céramique industrielle, et produit réfractaire obtenu à partir de cette composition
CN101384520A (zh) * 2006-02-20 2009-03-11 耐火材料控股有限公司 耐火的普通陶瓷坯料及用其制备的耐火制品
CN101384520B (zh) * 2006-02-20 2013-06-12 耐火材料控股有限公司 耐火的普通陶瓷坯料及用其制备的耐火制品
CN104355634A (zh) * 2014-10-28 2015-02-18 北京利尔高温材料股份有限公司 一种氧化铝质电炉盖及其制备方法
US10227260B2 (en) 2014-12-22 2019-03-12 Refratechnik Holding Gmbh Refractories and use thereof
WO2016102149A1 (fr) * 2014-12-22 2016-06-30 Refratechnik Holding Gmbh Produits réfractaires et leur utilisation
AU2015371612B2 (en) * 2014-12-22 2018-06-14 Refratechnik Holding Gmbh Refractories and use thereof
US10207955B2 (en) 2014-12-22 2019-02-19 Refratechnik Holding Gmbh Refractories and use thereof
RU2712870C2 (ru) * 2014-12-22 2020-01-31 Рефратехник Холдинг Гмбх Огнеупоры и их применение
CN105367096A (zh) * 2015-11-25 2016-03-02 南京联合荣大工程材料有限责任公司 一种耐火原料以及包含该原料的高炉压入料
CN107314165A (zh) * 2017-06-30 2017-11-03 长兴华悦耐火材料厂 一种多功能耐火风管
CN108129142A (zh) * 2017-11-23 2018-06-08 宜兴瑞泰耐火材料有限公司 一种丙烷脱氢装置用耐火材料及其制备方法
CN109020582A (zh) * 2018-09-29 2018-12-18 武汉钢铁有限公司 一种钢包保温浇注料及其应用
CN109020582B (zh) * 2018-09-29 2021-06-22 武汉钢铁有限公司 一种钢包保温浇注料及其应用
CN112592193A (zh) * 2021-03-02 2021-04-02 北京利尔高温材料股份有限公司 一种钢包包盖浇注料及其制备方法
WO2025208197A1 (fr) * 2024-04-05 2025-10-09 Shinagawa Refratários Do Brasil Ltda Système liant, composition de bloc réfractaire et procédé de préparation d'un bloc réfractaire

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