WEBDec 1, 2015 · One of the possibilities to increase iron content in sinter is the modifiion of raw materials ratio, when iron ore materials are added into sintering mixture. If the ratio is in favor of iron ...
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WEBMar 6, 2024 · Proportioning is an important part of sintering, as it affects the cost of sintering and the quality of sintered ore. To address the problems posed by the complex raw material information and numerous constraints in the sintering process, a multiobjective optimisation model for sintering proportioning was established, which takes .
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WEBDec 1, 2020 · In iron ore sintering process, raw materials, including iron ores, fluxes, fuel, and return fines, are blended uniformly and subsequently granulated in a tumbling granulator to form coarse particles with the addition of moisture (Fig. 1). The granules are charged onto a moving strand by a round roll feeder to form a porous packed bed.
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WEBDec 11, 2022 · In contrast to the conventional iron ore sintering process, the temperature evolution in the sintering bed using the fuel segregation distribution sintering technology tended to be more reasonable ...
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WEBSep 18, 2023 · Sintering is a commonly used agglomeration process to prepare iron ore fines for blast furnace. The quality of sinter significantly impacts the blast furnace ironmaking process. In the vast majority of sintering plants, the judgment of sintering quality still relies on the intuitive observation of the cross section at sintering machine .
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WEBJul 15, 2022 · Iron ore sintering is an agglomeration process of iron or e fines, fluxes, fossil fuel (coke and coal), and some ironbearing waste materials in the ironmaking and steelmaking industry [
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WEBAug 1, 2019 · An iron ore sintering process is the first procedure of steelmaking industry. It produces sinter for feeding into the blast furnace (BF). Empirical experiences show that a 1% decrease of iron grade (TFe) in produced sinter turns into a 2% increase of BF fuel ratio and a 3% decrease of BF output (Wang, 2011). So, the TFe is an important quality ...
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WEBMar 1, 2020 · Currently, the research on the iron ore sintering process is mainly focused on energy saving and environmental protection. Many researchers have contributed to the modeling and optimization for the carbon efficiency of the sintering process. A multimodel ensemble prediction model for carbon efficiency is built by Hu, Wu, Chen, Cao, and .
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WEBJul 5, 2018 · During sintering process, iron ore fines, recycled ironbearing materials (dusts and slags), fluxes (dolomite, limestone, etc.), and fossil fuels, such as coke breeze and anthracite, are thoroughly mixed and agglomerated into lumplike sinter under about 1300 °C provided by the combustion of fossil fuels [10].
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WEBDec 1, 2020 · The iron ore sintering process has always attracted interest of researchers due to its complexity, large timedelay, coupling, and nonlinearity. For the problem of gas pressure fluctuation during the sintering ignition process, an intelligent control method of sintering ignition based on ignition temperature prediction is proposed [4]. The burn ...
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WEBNov 15, 2023 · During the iron ore sintering process, there is a universally known feature of uneven heat distribution in the sintering bed [26], [27]. The sintered material is mixed, granulated, and then filled into the sinter machine with a uniform fuel distribution in conventional sintering processes. After ignition, the flame front forms in the upper ...
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WEBOct 28, 2016 · Abstract and Figures. Sintering is an agglomeration process that fuses iron ore fines, fluxes, recycled products, slagforming elements and coke. The purpose of sintering is to obtain a product ...
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WEBMay 1, 2011 · The whole melting curve of iron ore during sintering process was obtained, and the melting characteristics of iron ore were defined and explained. The whole melting process of mixture, mixed by iron ore and CaO reagent at basicity of 2. 0 and 4. 0, respectively, was observed using a SiC heating furnace with camcorder unit, and the .
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WEBFeb 16, 2017 · Abstract. Sintering is a process of agglomeration of iron ore fines, fluxes, recycled products, slagforming elements and coke with the purpose of achieving an agglomerated product with the ...
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WEBSep 10, 2017 · Using biomass for partial replacement of coke breeze in ironore sintering process is an effective technique as a countermeasure against global warming. However, the sinter strength would be weakened due to the .
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WEBMar 20, 2020 · In the iron ore sintering process, it is desirable to maximize the productivity and quality of sinter while minimizing the fuel consumption for any given raw material (iron ore, flux and solid fuel) quality. However, given the complexity of the sintering process and the large number of manipulated variables, it is not practical for .
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WEBMay 1, 2017 · The study of sunflower seed husks as a fuel in the iron ore sintering process. Mineral Engineering 2008; 21: 167177. [3] Ooi TC, Thompson D, Anderson DR, Fisher R, Fray T, Zandi M. The effect of charcoal combustion on ironore sintering performance and emission of persistent organic pollutants. Combustion and Flame .
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WEBAug 1, 2020 · For iron ore sintering process, both the calcium and iron are necessities. Therefore, the similarities of chemical compositions made iron ore sintering process a promising way to treat MSWI fly ash. Min et al. has explored the emission rule of dioxins and metallurgical properties of finished sinter after adding MSWI fly ash ( Yi et al., 2017 ...
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WEBAbstract A mathematical model of the iron ore sintering process in a fixed sinter bed and optimisation of the process parameters using real valued genetic algorithm is described. The mathematical model is formulated based on mass and energy balances in gas and solid phases, which are represented by simple partial differential equations. The model .
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WEBJun 13, 2022 · Iron ore sintering entails high energy consumption and also produces significant pollution, responsible for the highest share of CO 2 emission, as well as SO 2 and NOx emissions, in the iron and steel production processes. 5 The SO 2 and NO X emissions from this process account for ∼70% and ∼40% of the total iron and steel .
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WEBJan 15, 2021 · The iron ore sintering process is one of the vital steps in an integrated steelmaking chain, the goal of which is to agglomerate iron ore fines into porous sinters with a high mechanical strength ...
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WEBJan 16, 2018 · The document discusses sinter making technology used in iron ore mining. It describes how iron ore fines generated during mining cannot be directly charged in blast furnaces due to size restrictions. Sintering is used to agglomerate the fines into a porous mass that meets size requirements. The key steps in sinter making include: 1) raw ...
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WEBDec 1, 2017 · 4 Iron ore sintering entails high energy consumption and also produces significant pollution, responsible for the highest share of CO 2 emission, as well as SO 2 and NOx emissions, in the iron and ...
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WEBApr 27, 2023 · The effect of addn. of the iron ore on sintering process was also performed in a sintering pot, and the properties of the sinter samples were then examd. The melt formation and fluidity properties of the high alumina iron ore were not good, and it had adverse effect on sinter quality. The yield and strength of the sinter samples gradually ...
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WEBJul 28, 2023 · The iron ore sintering process is the second largest energy consuming process next to the blast furnace in overall integrated steel plant value chain. Sintering consists of two moving beds, namely a sintering machine, and an annular cooler. Once the sintering is completed, hot sinter is discharged on the annular cooler and air is blown .
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WEBOct 1, 2016 · Iron ore sintering process is a typical example of filtration combustion in its industrial appliion [32]. Similarly, the heat utilization efficiency will reach to the maximum when the HTFS is equal to FFS.
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WEBDec 1, 2015 · The sintering mixture, necessary for iron ore sinter production, is composed of various kinds of iron ores, fluxes, recycled raw materials and fuel. A new composition and new grain size of sintering mixture have been examined in a laboratory testing sintering pot [1], where the height of sintered layer corresponded to a height of sintered .
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WEBAs the binary basicity increased, the strength of the samples first decreased and then increased, reach the minimum value at basicity, and the calcium ferrite and porosity of the samples gradually increased. The carbonfree sintering process does not change the consolidation process of iron ore, and it has theoretical feasibility.
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WEBJul 5, 2018 · Iron ore sintering is an important channel to utilize Cbearing dust, but the poor surface activity worsens the permeability of the green bed and reduces the yield and quality indexes of sinters. Thus, the Cbearing dust dosage should be within 5% during iron ore sintering process (Gan et al., 2018).
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