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The production of high-quality sinter is crucial for assuring consistent, stable furnace productivity with a low consumption of reductants. Sinter quality begins with the mined iron ore and the proper selection and …
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The iron oxide (FeO) content had a significant impact on both the metallurgical properties of sintered ores and the economic indicators of the sintering process. Precisely predicting FeO content possessed substantial potential for enhancing the quality of sintered ore and optimizing the sintering process. A multi-model integrated prediction framework for FeO …
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This paper develops a cost-effective low-carbon iron ore sintering technology that can be directly applied to iron and steel production, with its essence to add partial fuel into surface sintering bed Through applying this technology, the sintering energy consumption and pollutant emission are reduced, and the heat utilization efficiency is ...
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Iron ore sintering dust, a solid waste produced during steel manufacturing, contains high levels of lead and iron compounds, particularly anglesite and hematite. Traditional sulfidation flotation methods struggle to effectively separate these fine-grained minerals. This study introduces a selective aggregate flotation method that enhances ...
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The iron and steel production in China is still dominated by the long process of blast furnace–converter route [].Iron ore sinter is the major burden for blast furnace, and its average proportion in blast furnace is generally over 70% [].However, the carbon emission of sintering process is huge, which is only next to that of ironmaking process [].
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Sintering of iron ore is a generic term which is used to describe the process whereby a sinter mix (raw mix or green mix) of iron ore fines, fluxes, fuel (coke breeze) and plant return fines (e.g. mill scale, blast furnace dust, and returned sinter fines etc.) are converted into a particular form of agglomerate. ...
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The iron ore sintering process is the main source of VOCs emission in the iron and steel industry, and its VOCs emission accounts for about 69.6% . The organic compounds in the solid fuel and the oil components from the raw materials such as rolling oily sludge are pyrolyzed in the preheating layer (150–900 °C) to produce VOCs [ 9, 10 ].
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Iron ore sinter are virtually all produced in travelling-grate installations (fig 2).The process of sintering begins with the preparation of the raw materials consisting of iron ore fines, fluxes, …
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Sintering is the most economic and widely used agglomeration process to prepare iron ore fines for blast furnace use. In this chapter, the sintering process is first described to identify the key ...
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Keywords: sintering, iron ore sinter, magnesian additives, Bakal siderites, roasted siderite concentrate, magne - sian iron ore concentrate Received 16 November 2020 Accepted 02 May 2021 Journal of Chemical Technology and Metallurgy, 56, 5, 2021, 1089-1101 Nosov Magnitogorsk State Technical University 38, Lenin Street, Magnitogorsk, Chelyabinsk ...
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This review may provide a road map regarding the development of advanced sustainable and energy-efficient technologies for use in the iron ore sintering process. In particular, a general overview of alternative fuels and their impacts on the iron ore sintering process in terms of the sinter quality and CO 2 /NO x /SO 2 emissions is provided in ...
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Sinter is the most common blast furnace burden material used in integrated steelworks throughout the world. The sintering process is carried out by mixing iron ore with other additives(e.g. fluxes, re-circulated materials, etc) and correcting the blend moisture by adding water in the mix as shown in Fig. 1.As process fuel, coke fines (<5 mm, 3–5 wt%) is …
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The micro-sintering method was used to determine the sintering basic characteristics of iron ore with Zn contents from 0 to 4%, the influence mechanism of Zn on sintering basic characteristics of iron ore was clarified by means of thermodynamic analysis and first-principles calculations. The results showed that (1) increasing the ZnO and ZnFe2O4 …
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for sintering of iron ore (Acasos) Roland Pietruck VDEh-Betriebsforschungsinstitut (BFI) Sohnstraße 65, 40237 Düsseldorf, GERMANY Joachim Janz, Elke Unland ArcelorMittal Bremen Carl-Benz-Straße 30, 28237Bremen, GERMANY Giuseppe Ventrella ILVA S.p.A. Via Appia km 648, 74100 Taranto TA, ITALY Trevor A.T. Fray, Maria Martinez.Pacebo ...
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Currently, steel production in China is dominated by the BF-BOF route, and sinter is an indispensable high-quality raw material for blast furnace ironmaking (Wang et al., 2019).The energy supply for the iron ore sintering process relies on coke breeze or anthracite under conventional conditions, and hydrogen-rich gas is considered as "bridge fuel" for carbon …
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A model of iron ore sintering was built with consideration of fuel combustion, catalysis of sinter mixture as well as formation of melt and mineral, which was verified via sintering pot tests and showed a good fit to the experimental results. The effect of bed depth on temperature was reflected by the residence time in high-temperature zone ...
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Iron ore sinter plants are energy-intensive components of integrated iron and steel production (see Table 1), where the iron ore fines (<5 mm) are converted into larger (>5 mm) …
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1. Introduction. In the metallurgical ironmaking process, sinter is the main raw materials fed into the blast furnace to produce molten iron. To produce sinter, iron ore fines are mixed with coke and fluxes, and granulated in a granulator with the addition of water; the granules are then distributed to the sintering machine for ignition, exhaust, sintering and crushing …
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One advantage of the iron sintering process is its versatility—the process is quite successful with a wide range of ore fractions (from 0 to 10 mm). Along with clotting, other physical and chemical processes impact iron ore …
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Moreover, the conventional iron making unit, i.e. blast furnace requires the raw material in the form of iron oxide with a size range of 10–120 mm. Sintering is the oldest agglomerate thermal process using iron ore mineral fines of 0.5–8 mm, along with the reductant, fluxes, and other byproducts of the iron and steel industry operated ...
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Titanium containing compounds are valuable materials for addition to the blast furnace to extend operational compaigns. However, the addition of these materials via the sinter plant has been known to create problems. This study investigates the effect of adding a titanomagnetite to two sintering ore blends, containing 10 and 20% pisolitic limonite …
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Exhaust gases from iron ore sintering plants must be desulphurized since sulphur dioxide is a significant contributor to acid rain. The flue gas circulation sintering …
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Sintering is a thermal agglomeration process that is applied to a mixture of iron ore fines, recycled ironmaking products, fluxes, slag-forming agents, and solid fuel (coke). The purpose …
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DOI: 10.1179/1743281214Y.0000000237 Corpus ID: 136623477; Optimising method for improving granulation effectiveness of iron ore sintering mixture @article{Min2015OptimisingMF, title={Optimising method for improving granulation effectiveness of iron ore sintering mixture}, author={Gan Min and Xiao-hui Fan and Zhiyun Ji and Xu-ling Chen and Liang Yin and Tao …
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Abstract. In iron making process, sintering of iron ore fines is an integral step to utilize not only the ore fines but also to introduce a part of flux (limestone and dolomite) along …
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Comprehensive numerical simulation model was developed to describe the structural changes in the iron ore sintering bed by using the discrete element method (DEM). The heat wave propagation through the sintering bed was incorporated by combining the solutions of the various reaction rates and gas–granule heat transfer with the calculation of ...
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The total sintering time and flue gas flow were measured from the start of ignition to the point at which the sintering waste gas reached its maximum temperature. There was a pressure drop of 10 kPa with a downdraught system during the iron ore sintering process, and the pressure drop was adjusted to 5 kPa when it came to sintering terminal.
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The present work proposes a novel process to sinter porous iron ore (porosity ~23–24%) with enhanced productivity and quality. The iron ore is pre-processed in the presence of calcined lime for the temporary closure of pores, which further prevents water absorption during the granulation process in drum in the presence of water. The calcined lime coated iron ore …
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The iron blast furnace is the most widely used and efficient producer of liquid iron; however, emissions from sintering and coking cause environmental pressure for the integrated steel works. The combustion of coke fines (breeze) during sintering contributes to greenhouse gases (e.g. carbon dioxide) and is a source of SO x and NO x emissions ...
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The sintering process is an intricate system with a protracted process flow. The steps in the manufacturing line are primarily composed of the ingredients and mixing process, …
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