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Mr Fan Zhou (Beijing Engineering Incorporation of Iron & Steel Technology, Beijing, China)26/09/2018, 15:10PosterPosterAccording to the comparative analysis of different blast furnace slag granulation methods and water-slag separation processes, we have combined the granulation tank, the innovative filtration process and the heat recovery together to ensure the slag granulation production reliable, energy-saving, environmental friendly, practical, economic and efficient. By the analysis of using grab crane to...Go to contribution page
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Kexin Jiao (University of Science and Technology Beijing)26/09/2018, 15:11Blast furnace ironmakingPosterIn order to evaluate the performance of UCAR carbon brick in blast furnace, the production technology characteristics and the application of UCAR carbon brick in blast furnace were analyzed. Analytic hierarchy process was used to calculate the weight of the performance index for carbon brick, the erosion resistance of carbon brick in molten iron was considered as the key performance. The...Go to contribution page
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Mrs Rong li Sang (North China University of Science and Technology)26/09/2018, 15:12PosterPosterZnO/activated semi-coke desulfurizer was synthesized using hydrothermal method. The obtained samples were characterized by X-ray di๏ฌraction, scanning electron microscopy, transmission electron microscopy and N2 adsorption. The effects of the loading amounts of ZnO, reaction time and temperature on the performance of ZnO/activated semi-cokeโs desulfurization capability were investigated in a...Go to contribution page
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Dr Mingyin Kou (University of Science and Technology Beijing), Mr Shun Yao (School of Metallurgical and Ecological Engineering, Beijing University of Science and Technology, Beijing 100083, China)26/09/2018, 15:13PosterPosterBlast furnace emission reduction optimization model is based on substance conservation and energy conservation of ironmaking process. The mathematical model is established using the multiple-objective optimization method with the cost and CO2 emission taken as objective functions. The optimization variables and constraints are determined by the characteristics of blast furnace ironmaking...Go to contribution page
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Jianliang Zhang (School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing)26/09/2018, 15:14Blast furnace ironmakingPosterIn order to clarify the impact mechanism of CaO/SiO2 and MgO on the performance of Jiusteel blast furnace slag, based on the actual composition of Jiusteel blast furnace slag, the influences of CaO/SiO2 and MgO on viscosity and melting temperature of slags were investigated. Furthermore, the activity, liquidus temperature, liquid region and phase change of slag from 1600โ to 1000โ were...Go to contribution page
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Mr Sigit Prabowo (Robinson Research Institute, Victoria University of Wellington, PO Box 33436, Lower Hutt 5046, New Zealand)26/09/2018, 15:15Direct reductionPosterSubstantial deposits of titanomagnetite ironsand are found throughout the west coast of the North Island of New Zealand (NZ). This titaniferous iron ore contains approximately 8% TiO2 equivalent, which prevents its use as a feedstock concentrate for conventional blast furnace (BF) processes. However, at present ~1.5 Mt pa is utilized in the rotary-kiln production of direct reduced iron (DRI),...Go to contribution page
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Dr Chao Liu (Northeastern University)26/09/2018, 15:16PosterPosterThe flue gas circulation sintering process can not only realize the comprehensive utilization of resources, but also can realize clean production which by recycling sintering flue gas to conduct iron ore sintering and significantly reducing the flue gas processing in the terminal treatment. The flue gas directly recycling use in sinter production will affect the sinter properties, because the...Go to contribution page
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Prof. Xiangxin Xue (Northeastern University)26/09/2018, 15:17PosterPosterThe effect of ordinary magnetite ratios on the basic characteristics of Hongge high-chromium vanadium-titanium mixed ores was investigated through micro-sinter methods. The researches including assimilation characteristic, crystal intensity characteristic, bonding strength characteristic and fluidity characteristic were studied. With increase of ordinary magnetite ratios in Hongge...Go to contribution page
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Dr Xuesong Zhang (ShouGang Group)26/09/2018, 15:18PosterPosterLaboratory test of removal of titanium from hot metalis developed in different remover, different proportion and different granularity.The suitable remover and parameters for industrial production test are found. At the same time the removable titanium removal device is designed and developed. Industrial test of removal of titanium from hot metalin blast furnace of Shou-gang stock company is...Go to contribution page
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Mr Bruno Flores (Federal University of Rio Grande do Sul - Brazil (UFRGS))26/09/2018, 15:19CokemakingPosterBrazil has a large coal reserve, which is mainly located in the Parana Basin, southern region of the country. Despite that, the steel sector, which is the largest coal consumer in Brazil, needs to import 100% of its demand. The coal from Barro Branco seam in Santa Catarina-Brazil is a potential raw material for coke production due to its well-known coking properties. Thus, the present study...Go to contribution page
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Prof. Eduardo Osรณrio (UFRGS)26/09/2018, 15:21CokemakingPosterMetallurgical coke remains an irreplaceable material in the production of hot metal in blast furnaces, providing the heat and the reducible gases necessary for the process. Coke also play an important structural role in the blast furnace, providing a permeable bed for the passage of gases and liquids. Coke mechanical strength is a key factor for the performance of blast furnace and is...Go to contribution page
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Prof. Haibin zuo (University of Science and Technology Beijing)26/09/2018, 15:22PosterPosterAbstract: In order to effectively use of low rank coal and biomass, the co-liquefied product was extracted from two kinds of low-rank coals and biomass by N-2-methyl-2-purrolidinone(NMP) at high temperature and high pressure. The structures of the co-liquefied product and residues were characterized by element analysis, FT-IR spectra. The effects of temperatures, coal rank, solid-liquid ratio...Go to contribution page
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Dr Yue Kang (Northeastern University)26/09/2018, 15:23PosterPosterBlast furnace slag(BFS) is the most important by-product in iron and steel industry. Due to its high output and high slag temperature, the BFS is a very good heat source. Recovery of sensible heat from BFS is essential for saving energy, reducing emission and improving energy utilization efficiency in iron and steel industry. The process of bead-forming of BFS by gas quenching can effectively...Go to contribution page
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Prof. Jing LI (University of Science&Technology Liaoning)26/09/2018, 15:24Modelling and simulation in coke and ironmakingPosterThe state of blast furnace (BF) campaign life and the erosion mechanism of BF hearth and bottom are summarized. According to the design and erosion conditions of hearth and bottom of a blast furnace with effective volume of 3200m3, a two-dimensional mathematical model was developed using the theory of heat transfer with ANSYS to monitor the erosion state of blast furnaceโs hearth and bottom....Go to contribution page
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Prof. Shengli Wu (University of Science and Technology Beijing), Ms Yanan Lu (School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing)26/09/2018, 15:25PosterPosterCOREX process has obvious advantages in environment protection but still has some disadvantages, for example, the content of sulfur in hot metal is high and fluctuant severely. In the present work, the effects of the slag ratio, temperature of hot metal, binary basicity (R2) and the ratio of MgO/Al2O3 of the slag on the sulfur content in hot metal are investigated. Correlation analysis and...Go to contribution page
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Dr Runsheng Xu (Wuhan University of Science and Technology,China), Prof. Wei Wang (Wuhan University of Science and Technology,China), Mr Xu Wen (Shanghai University,China)26/09/2018, 15:26PosterPosterThe blast furnace (BF) crucible breakout is not uncommon. More and more attentions have been paid on the penetration of molten iron and hearth lining erosion of BF. The iron skull, which is a layer of iron attached on the inner surface of the lining, provides a barrier between carbon brick and molten iron. Formation of a stable iron skull on the inner surface of the hearth lining could largely...Go to contribution page
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Dr Shungo Natsui (Hokkaido University)26/09/2018, 15:27PosterPosterA state-of-the-art numerical model was developed for analyzing packed bed structures containing non-spherical solids such as cokes and the high-temperature melt trickle flow characteristics of such beds. This enables the direct 3-dimensional analysis of packed beds that are difficult to visualize in experimental tests. The advanced discrete element method with 3D scanning technology is...Go to contribution page
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Mr HYUNGWOO KIM (POSCO)26/09/2018, 15:29PosterPosterPohang No.3 BF has been repaired it from February 24th to June 6th for 102 days. POSCO intend to improve operation efficiency and save costs by enlarging inner volume from 4,350 to 5,600m3. The relining criterion are that remaining of hearth refractory, wear of body shell, needs for increasing production and so on. Recently, the most critical point among them is the remaining of hearth...Go to contribution page
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Dr Mingyin Kou (University of Science and Technology Beijing)26/09/2018, 15:31PosterPosterThe liquid phase fluidity of iron ore is one of the vital index of sintering characteristic, as the suitable melt fluidity can get a stronger bonding strength of sintered body. In this paper, FactSage thermodynamic calculation software and visible micro-sintering test device were conducted to research liquid phase fluidity and the main influence factors of melt formation characteristics. The...Go to contribution page
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Dr juhua Zhang (Wuhan University of Science and Technology)26/09/2018, 15:32PosterPosterThe converter vanadium slag is a byproduct of the iron making process when using the vanadium titanomagnetite as the iron raw material. A cleaner process including calcified roasting, dilute acid leaching, precipitation purification, vanadium precipitation with ammonium salt followed by pyrogenic decomposition was proposed to extract vanadium resource from this slag. And then vanadium...Go to contribution page
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Mr Li ZHU (School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing), Dr Wenlong ZHAN (School of Materials and Metallurgy, University of Science and Technology Liaoning)26/09/2018, 15:33PosterPosterThe blowpipe of blast furnace (BF) air supply apparatus is always the weakest link of the hot blast pipe system. The local air leak, high surface temperature and short service life of blowpipe were ubiquity in the air supply apparatus after being used for a period of time. The average service life of No.2 BF tuyere blowpipe with conventional liner in Shouqin Company was 250 days at the initial...Go to contribution page
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Dr jiliang zhou (ShouGang Group)26/09/2018, 15:34PosterPosterThe process of spraying steam on surface of sintering bed was studied by using Fluent in this paper. The model was simplified into 2D and only front part of sinter machine was studied. As simulation results show that : (1) average temperature of sintering bed raised 20.3โ and temperature of off-gas raised 35.42โ after spraying steam; (2) the CO in off-gas became lower and CO2 in off-gas...Go to contribution page
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Dr Runsheng Xu (Wuhan University of Science and Technology), Prof. Wei Wang (Wuhan University of Science and Technology)26/09/2018, 15:35PosterPosterUnder the pressures of the decreases of high quality iron ore, the iron and steel enterprises in China turn to use low-quality ores which contain elements such as much silicon, aluminum, et al, in sintering. In order to understand the metallogenic and reduction mechanism of the low-quality iron ore sinter, in situ test were used in this study. The sinter samples were analyzed by X-ray...Go to contribution page
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Dr Wei Zhang (Wuhan University of Science and Technology)26/09/2018, 15:36PosterPosterFlash ironmaking is a new smelting reduction process. The extent of molten iron carburization is close to saturation in the blast furnace process. However, the extent of carburization in a flash ironmaking process is unexpected because there is no compression of solid charge and no carburization reactions occurred between the deadman bottom and hot metal. To this end, iron powder reduced and...Go to contribution page
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