Thermal properties and friction behaviors of slag as
In this paper, the thermal stability, specific heat capacity, thermal conductivity and microstructures of two electric arc furnace (EAF) slag samples were studied In TES system, as heat storage material, slag will meet with high temperature The mechanical strength of the specimens declines as the ladle slag content increases Nevertheless, the percentage decrease in compressive strength at Fire Free FullText The Incorporation of Ladle Furnace Slag in
(PDF) CHARACTERIZATION OF LADLE FURNACE SLAG
The results from the chemical analysis show that the approximate order of abundance of major components in ladle furnace The required heating energy depends not only on the desired temperature increment but also on the amount and thermal properties (specific heat) of the alloys which are added Ladle Furnace an overview ScienceDirect Topics
Characterization of ladle furnace basic slag for use as a
However, the properties of this slag are far from uniform, and it is possible to distinguish between four broadly different types: blast furnace slag (BFS), basic Ladle furnace basic slag, or refining slag, is produced in the final stages of steelmaking, when the steel is desulphured in the transport ladle, during what is Characterization of ladle furnace basic slag for use as a
Prevention of Ladle Furnace Slag Disintegration Through
Based on the laboratory experiment results, plant trial was planned to use perlite to reduce the slag disintegration To minimize the plant operational difficulties, it Among many other wastes, it produces two slag types: reducing slag (white or basic slag from a ladle furnace or LFS) and oxidizing slag (black or acid slag from Ladle furnace slags for construction and civil works: A
Table 1 Characterization of Ladle Furnace Slag from Carbon Steel
Table 1: Characterization of Ladle Furnace Slag from Carbon Steel Production as a Potential AdsorbentIn phase 1, mathematical modeling of fluid flow and heat transfer in ladle furnace was undertaken Details are available in the original publications [1, 2]A twodimensional model (axial and radial) was employed, as shown in Fig 2Figure 3 is a schematic representation of the situation in a gas stirred water model of a ladle Review of Our Investigations on Ladle Furnace SpringerLink
REVIEW OF LADLE FURNACE DigitalXplore
Review Of Ladle Furnace Proceedings of 7th st ICEECSME2013, 1 December 2013, Pune India ISBN: variations that improve the usage of the ladle for specific tasks The ladles can be classified depending upon applications [3] The radiated heat is reduced by the usage of slag layer and the lid The addition ofThe construction sector is one of the most demanding sectors for materials that exist today Therefore, in order to avoid the extraction of new raw materials, it is necessary to use waste This waste Metals Free FullText Evaluation of the Physical,
Utilization of ladle furnace slag as cement partial replacement
Utilization of ladle furnace slag as cement partial The morphology and microstructure of LFS are shown in Fig 1 The specific surface area of the powder was 346 m 2 kg −1 The chemical composition of the LFS was measured LFS can significantly promote the heat release rate in the early hydration of cement with aSlag A is an electric arc furnace type slag, while Slag R is a ladle furnace basic slag produced in the secondary stage of refining, when the steel is desulfurized Due to these differences in production, the content of elements varies; for example Slag A has a higher content of SiO 2 and Al 2 O 3 than Slag R, but a lower The Potential of Ladle Slag and Electric Arc Furnace Slag use in
Advances in chemical and physical properties of electric arc furnace
EAFC slag with ladle furnace slag as a rich in CaO (62% w/w) (v) EAFC slag with bauxite, as material rich inAl 2 O 3 (50%), FeO x (22%) and poor in SiO 2 (10%) In basic environments, aluminium oxide turns into pure oxidising agent, resulting in the polymerisation of aluminium, giving polymerised anions, similarly to the polymerisation ofThe ladle furnace slag after rapid air cooling (hereinafter referred to as CLFS) used in the experiment was the LFS discharged from the process of refiningaluminumstabilized steel in a ladle furnace, which was heated to 1450 °C in the furnace and cooled rapidly by airquenching system [31]The original LFS and modified CLFS Use of ladle furnace slag as supplementary cementitious material before
Ladle Metallurgy IspatGuru
Ladle Metallurgy satyendra; April 23, 2014; 1 Comment ; AOD, CAASOB, Ladle metallurgy, refining,; Ladle Metallurgy After tapping of steel from a primary steelmaking furnace such as BOF, EAF or EOF, molten steel for high quality or specialty applications is subjected to further refining in a number of alternative processes Ladle furnace slag contains a large amount of C 12 A 7 with early hydration activity • Ladle furnace slag significantly shortens cement setting time • Cement hydration heat release is significantly affected by ladle furnace slag • A proper amount of ladle furnace slag has a slight expansion effect on cementUtilization of ladle furnace slag as cement partial replacement
Full article: Optimal hot metal desulphurisation slag considering iron
The largest costs during the HMD process are the iron losses, iron that is skimmed off together with the slag Depending on the heat size, typically 500–4000 kg iron (05–25 wt% of the total iron) Panda SK, Harbers E, Overbosch A, et al Desulphurization with ladle furnace slag) Proceedings of METEC & 4th ESTAD, 2019Grain restructuring of Sulphides and Oxides Principles of DC Plasma LRF Operation 1 Main objectives of LRF are homogenization of chemical composition & temperature of steel, desulphurisation, removal of Ladle Refining FurnaceFerrous MetallurgyEPC
Converting ladle slag into highstrength cementing material by
To make full use of residual heat (temperature) and water vapor (relative humidity, RH) retained in flue gas, the compound effects of temperature (60–140 °C) and RH (2–60 %) of 2hour CO 2 curing on the compressive strength and CO 2 fixation of basic oxygen furnace slag (BOFS) blocks were systematically investigatedSlag A is an electric arc furnace type slag, while Slag R is a ladle furnace basic slag produced in the secondary stage of refining, when the steel is desulfurized Due to these differences in production, The Potential of Ladle Slag and Electric Arc Furnace
Steel Slag Material Description User Guidelines for Waste and
These different types are referred to as furnace or tap slag, raker slag, synthetic or ladle slags, and pit or cleanout slag Figure 181 presents a diagram of the general flow and production of different slags in a modern steel plant The steel slag produced during the primary stage of steel production is referred to as furnace slag or A study of carbon dioxide sequestration has been performed in aqueous electric arc furnace (EAF) and ladle furnace (LF) slag suspensions, in leached hydratedmatrixes, and in leachates to estimate their intrinsic sequestration potential at ambient conditions (temperature of 20 ± 1 °C and atmospheric pressure) The CO2 sequestration was tested CO2 Sequestration Potential of Steel Slags at Ambient Pressure
Effect of CaO–Al2O3Based Synthetic Slag Additions on
In the present investigation, the effect of CaO–Al 2 O 3based synthetic slag additions on steel desulphurisation has been studied on industrial scale The dependency of sulphide capacity (\(C{\text{S}}\)), sulphur distribution ratio (\(L{\text{S}}\)) and desulphurisation efficiency on various physicochemical properties of ladle furnace Energy recovery from hot liquid slag is one of the underused candidates for increasing energy efficiency in steel production In 2018, around 330 to 375 million tons of blast furnace slag (BFS) and around 250 million tons of steelworks slags (65% basic oxygen furnace (BOF) and ladle furnace (LF) slag, and 35% electric arc furnace (EAF) Towards Greener Industry: Modelling of Slag Heat Recovery
Model of Inclusion Evolution During Calcium Treatment in the Ladle Furnace
The coupled inclusion–steel–slag kinetic model is applied to the chemical composition changes in molten steel, slag, and evolution of inclusions in the ladle The result of calculations is found to agree well with an industrial heat for species in the steel as well as inclusions during Ca treatmentFive minerals are examined, namely perlite, ladle furnace slag, bauxite, diatomite and olivine Measurements of specific weight are accompanied by Xray diffraction (XRD) and fluorescence (XRF) analysis and scanning electron microscopy spectral imagesAdvances in chemical and physical properties of electric arc furnace
Prevention of Ladle Furnace Slag Disintegration Through Different Slag
During the industrial trials, different additives were added on the top of LF slag, after achieving the bath temperature This was done to minimize the losses due to arcing in the ladle furnace After addition of the additives, Argon was purged through the bottom porous plug for 3–4 min to help in easy mixing of slag