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refractory materials basic oxygen furnace using method

  • Refractory lining of a Basic Oxygen Furnace – IspatGuru

    2013-3-28 · Refractory lining of a Basic Oxygen Furnace The purpose of a refractory lining in a basic oxygen furnace (BOF) is to provide maximum furnace availability during operation of the converter in order to meet production requirements and to ensure lowest possible specific refractory consumption.

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  • Relationships Between Basic Oxygen Furnace Maintenance ...

    2018-1-18 · Basic Oxygen Furnace Maintenance Strategies The following methods are commonly used for BOF refractory maintenance: • Zero maintenance.

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  • Basic Refractory - RS Refractory Company

    30 行 · Basic Oxygen Furnace (BOF) HarbisonWalker International is a predominant supplier of …

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  • Basic Oxygen Furnace (BOF) [SubsTech]

    2006-3-22 · using carbon free ladle refractory lining using high basic, low carbon tundish flux (CaO/SiO2.4) maintaining thick liquid flux layer and control-ling mould fluid flow to lower the standingwave and level fluctuation.

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  • Basic Oxygen Furnace (BOF) - HarbisonWalker International

    METHOD of MELTING STEEL IN a basic OXYGEN furnace comprising loading scrap metal enter into the bath returnable charge graphitization furnace in the form of carbon-containing fluid, and slag-forming thinner slag pouring liquid iron and metal blowing oxygen, characterized in that as thinner slag use electrostatic dust electrolytic production of aluminum, while the coolant and thinner slag …

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  • Basic Oxygen Furnace Steelmaking - Steel Technology

    239000001301 oxygen Substances 0.000 title description 20; MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound; oxygen; Steel; steel — — — — — — — Composite refractory lining for basic oxygen furnace US3416779A (en)

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  • Basic oxygen furnace based steelmaking processes and ...

    2019-9-4 · A furnace is an equipment used to melt metals for casting or to heat materials to change their shape (e.g. rolling, forging) or properties (heat treatment). Since flue gases from the fuel come in direct contact with the materials, the type of fuel chosen is important. For example, some materials will not tolerate sulphur in the fuel.

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  • MgO Refractories in the Basic Oxygen Steelmaking Furnace ...

    The character of these refractory materials is traced from its origin in processing through interaction with the corrosive BOF service environment, and the bases of durability are discussed. Present performance is illustracted by a case study. Keywords Basic Oxygen Furnace ...

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  • Basic Oxygen Furnace Steelmaking - Steel Technology

    2006-3-22 · Basic oxygen furnace based steelmaking processes and cleanliness control at Baosteel L. Zhang*1, ... more resistant refractory linings and breakout pre-diction systems at the caster. For LCAK steel and IF ... extract the inclusions using the slime test,3 which is a method of extracting inclusions from steel via electro-

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  • Basic oxygen furnace based steelmaking processes and ...

    2018-1-18 · Basic Oxygen Furnace Maintenance Strategies and Steelmaking Productivity ... refractory materials. Super Gunning — Intensive gunning may cost ... gunning speed, super gunning can replace slag splashing as a maintenance method if it is carried out almost fully automatically and in short available breaks. Mix throughputs of up to 400 kg/minute ...

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  • Relationships Between Basic Oxygen Furnace Maintenance ...

    2021-5-11 · Refractory Materials for the “Feeding” Repair Method Put the filling material into the furnace from the furnace mouth, and shake the furnace body. The residual heat in the furnace makes the feeding material have a certain fluidity, and the feeding material is spread on the damaged part of the furnace lining.

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  • steel - Basic oxygen steelmaking | Britannica

    2018-4-10 · 1. Introduction. Some steel slags, such as basic oxygen furnace (BOF) slag and electric arc furnace reducing slag, have properties of volume expansion and high alkalinity which are major issues when aiming to recycle the steel slag in construction .Solving the volume expansion problem of steel slags is vital for slag recycling and reuse , , , , , .In Taiwan, more than 1.5 million tons of …

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  • Repair Methods and Required Refractory Materials of ...

    2019-9-4 · Figure 2a. Refractory lining of a furnace arch (BEE, 2005) Figure 2b. Refractory walls of a furnace interior with burner blocks (BEE, 2005) Some of the important properties of refractories are: Melting point: Pure substances melt instantly at a specific temperature. Most refractory materials

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  • Use of basic oxygen furnace slag fines in the production ...

    2020-11-1 · The results showed that the basic oxygen furnace dust is composed mainly of Fe as magnetite (Fe 3 O 4), wustite (FeO), and iron (Fe). The particle size analyses of the BOFD is in the range of 0.18 a 208.93 µm, with 90 wt% smaller than 73.69 µm.

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  • FURNACES AND REFRACTORIES - Modern Eq

    2019-1-1 · Even in a single brick type, variations in wear resistance can be introduced by modifying the composition to achieve overall uniform wear, as for example in state-of-the-art Basic Oxygen furnace (BOF) vessels (Jansen, 2007). At end-of-life, these different refractories are indiscriminately torn out and mixed.

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  • Basic oxygen process | metallurgy | Britannica

    enowned for their high meltingpoints, the refractory metals tungsten, molybdenum, and tan-talum are widely used in the con-struction of high-temperature furnaces as elements, insulation screens, and furnace furniture. Various applications using the materials are discussed. Unfortu-nately, all refractory metals oxidize in

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  • REFRACTORY METALS - ASM International the Materials ...

    2018-6-14 · ASTM Method E1409, “Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique”, enables either abrading (filing) or chemical etching of the test specimen. Other refractory metals, such as tantalum, zirconium, rhenium, molybdenum, niobium, and hafnium are usually abraded, rinsed with a solvent ...

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  • Determination of Nitrogen and Oxygen in Refractory Metals ...

    A method of flame spraying refractory material for in situ repair of, e.g., furnace linings wherein an inert carrier gas incapable of supporting combustion and particles of refractory oxide and combustible metal or other oxidizable material are delivered to a flame spraying apparatus wherein high pressure oxygen aspirates and accelerates the ...

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  • Method of flame spraying refractory material - Sudamet, Ltd.

    2018-6-6 · Moreover, the basic oxygen furnace provides an opportunity for phosphorus removal after which the pig iron is called crude steel. Further processing will then be conducted in the ladle. Depending on what quality of steel that is to be produced measures such as alloying, vacuum degassing and deoxidation can be taken.

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  • Optimizing the slag system for phosphorus removal in a DRI ...

    basic oxygen furnace (BOF) steelmaking is the uppermost method. According to World Steel Association, about 70% of the total steel worldwide is produced by BOF, especially, about 90% of the total steel in China.1) In steelmaking, basic oxygen furnaces can generate a large quantity of flue gas solid wastes, referred to as BOF dust, from 10 to 30 kg

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  • Control of Zinc-containing Dust Agglomerates in Basic ...

    Two other types of refractory processes also warrant discussion. The first is production of fused products. This process involves using an electric arc furnace to melt the refractory raw materials, then pouring the melted materials into sand-forming molds. Another type of refractory process is ceramic fiber production.

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  • (PDF) Understanding Refractory API 936 Reading VI ...

    Changxing Refractory focus on manufacturing all kinds of fire brick, refractory product, castable, refractory nozzle, cement, mortar, raw material, castable for Boilers & Furnace, etc.

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  • Refractory Manufacturer Factory_Refractory Solutions

    2012-5-31 · Typical basic oxygen converter has a vertical steel shell lined with refractory lining. The furnace is capable to rotate about its horizontal axis on trunnions. This rotation is necessary for charging raw materials and fluxes, sampling the melt and pouring the steel and the slag out of the furnace. The Basic Oxygen is equipped with the water ...

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  • Steel making (introduction) [SubsTech]

    2013-9-1 · A promising type of steel slag for applications is the ladle furnace (LF) slag, which is also known as the basic slag, the reducing slag, the white slag, and the secondary refining slag. The LF slag is a byproduct from further refining molten steel after coming out of a basic oxygen furnace (BOF) or an electric arc furnace (EAF). The use of the LF slag in further applications requires ...

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  • Magnezit: Basic oxygen furnace

    enowned for their high meltingpoints, the refractory metals tungsten, molybdenum, and tan-talum are widely used in the con-struction of high-temperature furnaces as elements, insulation screens, and furnace furniture. Various applications using the materials are discussed. Unfortu-nately, all refractory metals oxidize in

    Get Price
  • Basic oxygen process | metallurgy | Britannica

    2018-6-14 · ASTM Method E1409, “Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique”, enables either abrading (filing) or chemical etching of the test specimen. Other refractory metals, such as tantalum, zirconium, rhenium, molybdenum, niobium, and hafnium are usually abraded, rinsed with a solvent ...

    Get Price
  • REFRACTORY METALS - ASM International the Materials ...

    2011-5-14 · The Basic Oxygen Steelmaking process differs from the EAF in that it is autogenous, or self-sufficient in energy. The primary raw materials for the BOP are 70-80% liquid hot metal from the blast furnace and the balance is steel scrap. These are charged into the Basic Oxygen Furnace (BOF) vessel. Oxygen (>99.5% pure) is “blown” into the BOF ...

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  • Determination of Nitrogen and Oxygen in Refractory Metals ...

    A method of flame spraying refractory material for in situ repair of, e.g., furnace linings wherein an inert carrier gas incapable of supporting combustion and particles of refractory oxide and combustible metal or other oxidizable material are delivered to a flame spraying apparatus wherein high pressure oxygen aspirates and accelerates the ...

    Get Price
  • The Basic Oxygen Steelmaking (BOS) Process – Consortium

    basic oxygen furnace (BOF) steelmaking is the uppermost method. According to World Steel Association, about 70% of the total steel worldwide is produced by BOF, especially, about 90% of the total steel in China.1) In steelmaking, basic oxygen furnaces can generate a large quantity of flue gas solid wastes, referred to as BOF dust, from 10 to 30 kg

    Get Price
  • Method of flame spraying refractory material - Sudamet, Ltd.

    2017-3-16 · The basic oxygen converter resembles a Bessemer converter. It receives materials from the top and tips to pour off the finished steel into ladles. The main element is a water-cooled oxygen lance, which is placed into the top of the converter after it is charged with scrap steel, molten pig iron, and fluxing agents.

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  • Control of Zinc-containing Dust Agglomerates in Basic ...

    Standard Test Method for Sonic Velocity in Refractory Materials at Room Temperature and Its Use in Obtaining an Approximate Young's Modulus ASTM C1445 Standard Test Method for Measuring Consistency of Castable Refractory Using a Flow Table

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  • The BASIC OXYGEN STEEL-making (BOS) Process

    2017-3-21 · The BASIC OXYGEN STEEL (BOS) - making Process This can be described via the following steps: The process occurs in a furnace which is a specially designed steel vessel that may be rotated through 360 in a vertical plane. The vessels are lined with heat resistant (refractory) materials eg.dolomite (MgCO 3 CaCO 3) and magnesite (entirely MgCO 3 ...

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  • Usage of oxygen as chemical energy input in electric arc ...

    2015-4-28 · refractory wear and down time. Methods of Oxygen introduction in EAF The best oxygen introduction method as chemical energy system in Electric Arc Furnace is the one which effectively uses oxygen for de-carburization, assures high jet velocity at slag/metal boundary for aggressive mixing, minimizes negative effects to the furnace environment ...

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  • Basic Oxygen Furnace - 159.65.129.158

    2021-5-30 · 'basic oxygen furnace bof nippon steel amp sumikin october 8th, 2018 - optimization of furnace shell cooling system applying a water cooling system to the top cone part and an air cooling system to the barrel part of the basic oxygen furnace in order to reduce the thermal load on the furnace''Metalwork Materials Basic Oxygen Furnace

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  • REFRACTORY METALS - ASM International the Materials ...

    enowned for their high meltingpoints, the refractory metals tungsten, molybdenum, and tan-talum are widely used in the con-struction of high-temperature furnaces as elements, insulation screens, and furnace furniture. Various applications using the materials are discussed. Unfortu-nately, all refractory metals oxidize in

    Get Price
  • Determination of Nitrogen and Oxygen in Refractory Metals ...

    2018-6-14 · ASTM Method E1409, “Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique”, enables either abrading (filing) or chemical etching of the test specimen. Other refractory metals, such as tantalum, zirconium, rhenium, molybdenum, niobium, and hafnium are usually abraded, rinsed with a solvent ...

    Get Price
  • Oxygen Steelmaking Processes - Steel Foundation

    2020-10-16 · The oxygen steelmaking process rapidly refines a charge of molten pig iron and ambi-ent scrap into steel of a desired carbon and temperature using high purity oxygen. Steel is made in discrete batches called heats. The furnace or converter is a barrel shaped, open topped, refractory lined vessel that can rotate on a horizontal trunnion axis ...

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  • Blast Furnace - HarbisonWalker International

    The blast furnace process has been the primary method for producing iron for many decades. The blast furnace is a refractory-lined circular shaft 100 to 200 feet high, with an internal diameter between 20 and 45 feet. The refractory wall lining typically measures two feet or more in thickness and contains more than 2,500 tons of refractories.

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  • Simultaneous data reconciliation and parameter estimation ...

    2013-11-8 · The proposed paper describes a method allowing simultaneous data reconciliation and model parameter estimation. B. The Basic Oxygen Furnace Basic oxygen furnace is a method of primary steelmaking in which carbon-rich molten iron is made into refined steel. The vast majority of steel manufactured in the world is produced using the basic oxygen ...

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  • Slag/refractory and metal/refractory interactions during ...

    2009-8-26 · SLAG/REFRACTORY AND METAL/REFRACTORY INTERACTIONS 425 Results and discussion Black refractories The Al 2O 3-SiO 2-C refractories have a range of 51 to 61% Al 2O 3, 10 to 16% SiO 2, and 24 to 3% C.The depth of penetration of the refractory by the steel is shown in

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  • Basic oxygen steelmaking | Article about Basic oxygen ...

    basic oxygen process, method of producing steel steel, alloy of iron, carbon, and small proportions of other elements. Iron contains impurities in the form of silicon, phosphorus, sulfur, and manganese; steelmaking involves the removal of these impurities, known as slag, and the addition of desirable alloying elements.

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  • The BASIC OXYGEN STEEL-making (BOS) Process

    2017-3-21 · The BASIC OXYGEN STEEL (BOS) - making Process This can be described via the following steps: The process occurs in a furnace which is a specially designed steel vessel that may be rotated through 360 in a vertical plane. The vessels are lined with heat resistant (refractory) materials eg.dolomite (MgCO 3 CaCO 3) and magnesite (entirely MgCO 3 ...

    Get Price
  • Determination of Nitrogen and Oxygen in Refractory Metals ...

    2018-6-14 · ASTM Method E1409, “Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique”, enables either abrading (filing) or chemical etching of the test specimen. Other refractory metals, such as tantalum, zirconium, rhenium, molybdenum, niobium, and hafnium are usually abraded, rinsed with a solvent ...

    Get Price
  • Basic Oxygen Furnace - 159.65.129.158

    2021-5-30 · 'basic oxygen furnace bof nippon steel amp sumikin october 8th, 2018 - optimization of furnace shell cooling system applying a water cooling system to the top cone part and an air cooling system to the barrel part of the basic oxygen furnace in order to reduce the thermal load on the furnace''Metalwork Materials Basic Oxygen Furnace

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  • Novel Method for Stirring BOF Melts in Conjunction with ...

    2020-9-25 · Basic oxygen furnace (BOF) is used to convert iron into steel by blowing oxygen into the hot metal to remove carbon and impurities. In a BOF, blowing oxygen through molten iron lowers the carbon content of the metal. The process also uses fluxes of burnt lime or dolomite, which are chemical bases, to adjust the slag and promote the removal

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  • Oxygen Steelmaking Processes - Steel Foundation

    2020-10-16 · The oxygen steelmaking process rapidly refines a charge of molten pig iron and ambi-ent scrap into steel of a desired carbon and temperature using high purity oxygen. Steel is made in discrete batches called heats. The furnace or converter is a barrel shaped, open topped, refractory lined vessel that can rotate on a horizontal trunnion axis ...

    Get Price
  • Refractory Terms - Total Refractory Management

    2021-6-23 · The kiln cars are used in the refractory and ceramic industry to shuttle fired and unfired ware in and out of the furnaces. The earlier kiln cars were constructed using heavy refractory materials, but these proved to be energy inefficient. Over the years, the weight of the kiln cars has reduced considerably.

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  • 14 Types Of Refractories - Different Types of Refractories ...

    Zirconia Refractory: Zirconia bricks are the bricks which have more than more than 65% of ZrO 2. They have good thermal shock and good corrosion resistance. Primarily used for the key parts of the furnace of glass furnace, glass fiber furnace,garbage incinerator furnace, electrothermal furnace,etc. Raw Materials: Zircon; Cubic zirconia; Other ...

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  • Slag/refractory and metal/refractory interactions during ...

    2009-8-26 · SLAG/REFRACTORY AND METAL/REFRACTORY INTERACTIONS 425 Results and discussion Black refractories The Al 2O 3-SiO 2-C refractories have a range of 51 to 61% Al 2O 3, 10 to 16% SiO 2, and 24 to 3% C.The depth of penetration of the refractory by the steel is shown in

    Get Price
  • Papers - refractories-worldforum.com

    2021-6-25 · Refractory Materials Used for the Investment Casting Process and their Infuence on Ceramic Shell Properties. Michael Weissenbacher, Clemens Lind, Joachim Wolff. Volume 11, Issue 4, Pages 67 - 72. Keywords: investment casting, ceramic shell, ceramic slurry. Abstract References Full Article: Refractory Raw Materials from the Steel Industry

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  • Basic refractory | Article about basic refractory by The ...

    The process of beneficiation of chrome ore for high grade basic refractory involves the following stages: Crushing, sizing, conveyers belts, concentrating tables and drying. Balochistan mineral industry in need of ample funds

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