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Thermal properties and friction behaviors of slag as
2018年8月1日· 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 temperatureThe 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 addedLadle Furnace an overview | ScienceDirect Topics
(PDF) CHARACTERIZATION OF LADLE FURNACE SLAG
2013年5月16日· The results from the chemical analysis show that the approximate order of abundance of major components in ladle furnace2009年5月1日· 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 isCharacterization of ladle furnace basic slag for use as a
Full article: Comprehensive utilisation of blast furnace slag
2023年7月21日· The specific heat capacity of slag is about 12 kJ/(kg°C), if the average value of the slag temperature is calculated at 1400°C, and the temperature of the2009年5月1日· 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 isCharacterization of ladle furnace basic slag for use as a
Use of Solid Slag Mixtures in a Ladle Furnace Unit Springer
2022年10月8日· An increase in overall specific consumption of slag former to 10 kg/ton of finished steel increased the degree of desulfurization by 81%, ie, in conducing test2019年9月16日· During the trials, fluid top slag was observed, and as per process requirements, specific parameters were compared for trial heats and regular heats asRecycling Ladle Furnace Slag as Flux in Steelmaking: A
LadleFurnaceSlag Reprocessing at Evraz Nizhnii Tagil
2020年9月24日· After metallurgical use, removal from the ladle, and hardening, ladle slag undergoes what is known as “silicate decomposition” Note that approximately 80% of2019年9月16日· Residual ladle slag from previous heat; They reported reduction of specific synthetic slag consumption from 12 kg/ton of liquid Zeghaibi O (2016) Use of Alkilled ladle furnace slag in Sikilled steel process to redue lime consumption improve slag fluidity In: Proceedings of the 10th international conference on Advances inRecycling Ladle Furnace Slag as Flux in Steelmaking: A Review
Optimal hot metal desulphurisation slag considering iron loss
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, 20192016年3月8日· 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 orSteel Slag Material Description User Guidelines for Waste and
Treatments and Recycling of Metallurgical Slags | IntechOpen
2018年11月7日· Steelmaking slag added into ladle slags makes it possible to minimize slag line wear (taking advantage of the heat) and (b) by making a ladle slag ingot thereby reducing energy consumption Blast furnace slag is obtained at 1300–1400°C; viscosity is around 04–10 poise; the chemical composition mainly includes FeOReview 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 ofREVIEW OF LADLE FURNACE DigitalXplore
A Hybrid Modeling Method Based on Expert Control and Deep
The heat income comes from the heat of electric arc, the chemical reaction heat of additions The heat output includes the heat exchanges between ladle furnace and surroundings, the heat storage of ladle shell, the heat loss from the slag surface, the heat loss by argon stirring, and the heat required for heating molten steel, as shown in Fig 22015年2月11日· 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 ofAdvances in chemical and physical properties of electric arc furnace
Effect of CaO–Al2O3Based Synthetic Slag Additions on
2019年2月27日· 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 furnace2021年1月5日· 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 slagPrevention of Ladle Furnace Slag Disintegration Through Different Slag
Converting ladle slag into highstrength cementing material by
2021年11月1日· 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 investigated2021年3月22日· Ladle furnace slag is a highcalciumbased alkaline industrial solid waste inefficiently stacked at the site, which consumes large amount of land and pollutes water resources Carbonation of refining slag not only solves the problem of poor compactness and poor stability of the refined slag as a product, but also eliminates waste and reducesAccelerated carbonation of ladle furnace slag and
A Study on the Thermal State of Steelmaking Ladles DiVA
Supplement 4: “Fluid flow and heat transfer in the ladle during teeming” Björn Glaser, Mårten Görnerup and Du Sichen “Editor’s Choice” Steel Research International 82 (2011), No 7, pp 827835 Supplement 5: “The effect of the slag layer on fluid flow and heat transfer in a teeming ladle” Björn Glaser2023年6月1日· Reviews focused on the specific topic of the 01%Mn, 1620 °C (average of sampled heats) metal: Passing slag from EAF to ladle: 12t 1650 °C 16% SiO 2, 28%FeO it was necessary to adjust the average oxygen pickup during tapping of 40 Nm³/min and an average oxygen pickup during ladle furnace of 06 Nm³/min for all heatsDevelopment of a computational thermodynamics EERZ model for
Characteristics and cementitious properties of ladle slag fines
2002年3月1日· Ladle slag is a byproduct from further refining molten steel after coming out of a basic oxygen furnace (BOF) or an electric arc furnace (EAF) Aircooled ladle slag has a very large portion of fine particles due to the conversion of βC 2 S to γC 2 S during the cooling process Xray diffraction (XRD) analysis of three ladle slag fine samplesDepending on the used production technology, the steel slag can be divided into a basic oxygen steel slag, an electric arc furnace slag and a ladle furnace slag (De Brito and Saika, 2013) The steel slag is used as a secondary cementitious binder, or aggregates for road construction ( Sheen et al, 2013 ; Manso et al, 2004 )Steel Slag an overview | ScienceDirect Topics
Mathematical Modelling of the Thermal State of a Ladle During
2020年11月13日· The heat losses with the water of a tubular wall panel of a DSP100I6 furnace (tube diam 76 mm and wall thickness 12 mm, lining slag thickness 20 mm, water consumption 5 m3/h per m2 of panelPrecise control of inclusion and molten steel compositions during ladlefurnace refining is important to obtain highquality steel Masstransfer behavior affects these compositions A model was developed to investigate the mass transfer occurring between molten steel, slag, inclusions, and the refractory during ladlefurnace refining, using twofilm theory toMassTransfer Model for Steel, Slag, and Inclusions during Ladle
Ladle Metallurgy – IspatGuru
2014年4月23日· 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 processes2021年1月5日· Fe 2 O 3 content in LF slag was found to be lower than that of BOF slag and EAF slag and so the LF slag has lower specific gravity than BOF slag and EAF slag [67] Hence, the LF slag cannot bePrevention of Ladle Furnace Slag Disintegration Through Different Slag
(PDF) CHARACTERIZATION OF LADLE FURNACE SLAG FROM
2013年5月16日· For this purpose, samples of ladle furnace slag, taken from the regular production process in the CMC Sisak doo between October 2010 and October 2011, were subjected to a series of tests