heat of formation of blast furnace slag

heat of formation of blast furnace slag

heat of formation of blast furnace slag
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Structural aspects of blast furnace slag In a blast furnace, the flow phenomenon of the slag, as dictated by its viscosity, greatly influences the heat transfe

heat of formation of blast furnace slag

  • Structural aspects of blast furnace slag

    In a blast furnace, the flow phenomenon of the slag, as dictated by its viscosity, greatly influences the heat transfer, mass transfer and chemical reactions between the slag and the metal The blast furnace slag should be a freeflowing one at the operating temperatures to ensure efficient slag–metal separation It must have appreciable affinity for the gangue constituents to facilitate the production of metal of choice Yet from the available heat (in the hearth) point of view,1 the blast furnace slag should be neither very viscous nor very fluid In addition, a viscous slag is less damaging to the refractory in the furnace Thus, it is rightly said ‘History of slag making is the history of iron making’ This saying emphasizes on the fact that the quality of metal produced cannot be better than the quality of the slag produced; one of the most important factors influencing the quality of the slag being its viscosity The viscosity of the blast furnace slag governs the reaction rates in the furnaceConclusions Blast furnace slag is usually activated by mixing with Portland cement clinker At very high pH values (> 130) corrosion of the slag particles is enhanced and the reaction of blast furnace slag is accelerated Alternatively, the use of low pH values (118–124) was investigated in this studyActivation of blast furnace slag by a new methoda blast furnace body is one of the restrictive links of blast furnace longevity4) In recent years, Chinese commercial blast furnaces have suffered a large amount of economic losses due to the damage of copper stave5,6) The formation of slag crust on the cooling stave of a blast furnace playsPhase Composition and Formation Mechanism of Slag

  • Granulation characteristics of molten blast furnace slag

    Molten blast furnace (BF) slag is one of the main byproducts in the ironmaking process, and has a yield of 300 kg/tpig iron The heat contained in molten BF slag (1500 °C) reaches up to 1600 MJ/t Globally, the production of pig iron was nearly 1153 million t in 2015, and about 3456 million tHeat Of Formation Of Blast Furnace Slag Heat Of Formation Of Blast Furnace Slag Luo s, wang j, guo x, liu z, sun w 2019 the production of hydrogenrich gas by wet sludge gasification using waste heat of blastfurnace slag mass and energy balance analysisInt j hydrog energy 5heat of formation of blast furnace slag piccolinaplA stable skull layer formed on the inner surface of the hearth could effectively protect the lining and extend blast furnace campaign life This is the first comprehensive work of using integrated(PDF) Investigation of Skull Formation in a Blast Furnace

  • Use of Blast Furnace Slag Aggregate in Concrete IJSER

    Use of Blast Furnace Slag Aggregate in Concrete KG Hiraskar and Chetan Patil AbstractThe Iron industries produce a huge quantity of blast furnace slag as by–product, which is a non–biodegradable waste material from that only a small percentage of it is used by cement industries to manufacture cementBlast furnace slag (BFS) is the main byproduct in ironmaking process As its discharge temperature is between 1450 and 1550 °C, each ton of slag contains a large amount of highquality thermal energy which is equivalent to 60 kg standard coal [ 1, 2, 3 ] Thus, there is a great potential for waste heat recovery from hightemperature molten slagNumerical investigation of breakup process of moltenReducing expansion due to Delayed Ettringite Formation (DEF) is becoming an important issue that must be taken into account, when producing heatcured concrete Mineral additives used as partial cement replacement should help in achieving the desired aspect Based on an ongoing experimental program, this research emphasizes on the effect of Blast Furnace Slag (BFS) on theBlast Furnace Slag Addition Effects on Delayed Ettringite

  • Heat Of Formation Of Blast Furnace Slag

    Iron and Steel Slag Mineral Resources Program USGS silicate fluxes and the formation of steel slag the slag is tapped during a heat, Blast furnace slag1 Steel Total iron Blast furnace slag1 Steel Total ironHeat Of Formation Of Blast Furnace Slag Heat Of Formation Of Blast Furnace Slag Luo s, wang j, guo x, liu z, sun w 2019 the production of hydrogenrich gas by wet sludge gasification using waste heat of blastfurnace slag mass and energy balance analysisInt j hydrog energy 5heat of formation of blast furnace slag piccolinaplIron and Steel Slag Mineral Resources Program USGS silicate fluxes and the formation of steel slag the slag is tapped during a heat, Blast furnace slag1 Steel Total iron Blast furnace slag1 Steel Total ironHeat Of Formation Of Blast Furnace Slag

  • heat of formation of blast furnace slag

    heat of formation of blast furnace slag For each project scheme design, we will use professional knowledge to help you, carefully listen to your demands, respect your opinions, and use our professional teams and exert our greatest efforts to create a more suitable project scheme for you and realize the project investment value and profit moreMineral Reactions and Slag Formation During Reduction of 91 Formation of Potassium Slag in Olivine Fluxed Blast Furnace Pellets Steel using the gas flow, heat transfer and permeability components of BlueScope Steel's proprietary twodimensional steadystate numerical modelMineral Reactions and Slag Formation During ReductionThe subject of the research is a concrete with partial replacement of cement with an increased amount of ground granulated blast furnace slag to reduce heat release of concrete for the structures of the Akkuyu Nuclear Power Plant (Iskenderun, Turkey) The concrete was tested for heat release, compressive strength and shrinkage Several mixes with partial replacement of cement by the slag fromLow heat concrete with ground granulated blast furnace slag

  • Use and Properties of Blast Furnace Slag as a Building

    Use and Properties of Blast Furnace Slag as a Building Material A Review This paper aims at bringing a literature review on the uses and properties of popular industrial and mineral byproduct slag At the present, most industrial slags are being used without taking full advantage of their properties or disposed rather than usedLiquid slag produced in a blast furnace (BF)is at a temperature of around 1500?C and has a sensible heat of around 400Mcal/ton BF slag is rich in CaO, SiO2, Al2O3, and MgO which are similar to the components of Portland cementDry Granulation of Blast Furnace Slag | Steel360 NewsUse of Blast Furnace Slag Aggregate in Concrete KG Hiraskar and Chetan Patil AbstractThe Iron industries produce a huge quantity of blast furnace slag as by–product, which is a non–biodegradable waste material from that only a small percentage of it is used by cement industries to manufacture cementUse of Blast Furnace Slag Aggregate in Concrete IJSER

  • Activation of ground granulated blast furnace slag by

    ABSTRACT: Both reactive MgO and CaO are alternative activators for ground granulated blast furnace slag (GGBS) In this study natural dolomite, as a source of MgO and CaO, was calcined at 800°C (D800) and 1000°C (D1000) under air The activation of GGBS with the calcined dolomitesK Gong and C E White, “Impact of chemical variability of ground granulated blastfurnace slag on the phase formation in alkaliactivated slag pastes,” Cement and Concrete Research, vol 89, pp 310–319, 2016 View at: Google ScholarAutogenous Deformation of AlkaliActivated Blast [email protected]{osti, title = {Heat recovery in dry granulation of molten blast furnace slag}, author = {Tetsuro, N and Hiroshi, N and Koichi, F and Tsukio, I}, abstractNote = {In a research and development project undertaken jointly between IshikawajimaHarima Heavy Industries Co and Sumitomo Metal Industries, Ltd, a process has been developed for granulating molten slagHeat recovery in dry granulation of molten blast furnace slag

  • Mineral Reactions and Slag Formation During Reduction

    Mineral Reactions and Slag Formation During Reduction of 91 Formation of Potassium Slag in Olivine Fluxed Blast Furnace Pellets Steel using the gas flow, heat transfer and permeability components of BlueScope Steel's proprietary twodimensional steadystate numerical modellated blast furnace slag may be an alternative to lime materials The rapid cooling gives a metastable glassy structure, which increases the kinetic of the reaction with the lime Granulated slag has latent hydraulic properties, it is considered to be slow curing and it is not reactive with water at room temperature (Behim et al, 2011)Formation of CSH in calcium hydroxide–blast furnaceUse and Properties of Blast Furnace Slag as a Building Material A Review This paper aims at bringing a literature review on the uses and properties of popular industrial and mineral byproduct slag At the present, most industrial slags are being used without taking full advantage of their properties or disposed rather than usedUse and Properties of Blast Furnace Slag as a Building

  • Blast furnace process tecscience

    In order to keep the heat input as low as possible for energetic reasons, as little gangue as possible should be contained in the ores This makes the ore processing described above necessary The reduced admixtures in the blast furnace then react with the added flux in the charge and are bound in the resulting slagUse of Blast Furnace Slag Aggregate in Concrete KG Hiraskar and Chetan Patil AbstractThe Iron industries produce a huge quantity of blast furnace slag as by–product, which is a non–biodegradable waste material from that only a small percentage of it is used by cement industries to manufacture cementUse of Blast Furnace Slag Aggregate in Concrete IJSERThe main product of the blast furnace is molten pig iron and by products are slag and top gas During the process of formation of molten metal, CaO is chemically reacted with SiO2 and from the slag, this slag is send to slag granulation plant During the above process some gasses are liberated and these gasses are N2, CO, CO2, H2 and H2O these(PDF) THERMAL ENERGY MANAGEMENT OF BLAST

  • Blast Furnace Slag Cement Manufacture, Properties and

    Blast furnace slag cement is the mixture of ordinary Portland cement and fine granulated blast furnace slag obtained as a by product in the manufacture of steel with percent under 70% to that of cement Ground granulated blast furnace slag cement (GGBFS) is aThe specific heat capacity of blast furnace (BF) slag critically impacts blast furnace smelting and reports on the specific heat capacity of BF slag with high Al 2 O 3 are rare Mineral transform and specific heat capacity characterization of synthesized BF slag (CaO–SiO 2 –MgO–Al 2 O 3) with high Al 2 O 3 in the heating process areMineral Transform and Specific Heat CapacityABSTRACT: Both reactive MgO and CaO are alternative activators for ground granulated blast furnace slag (GGBS) In this study natural dolomite, as a source of MgO and CaO, was calcined at 800°C (D800) and 1000°C (D1000) under air The activation of GGBS with the calcined dolomitesActivation of ground granulated blast furnace slag by