WEBAug 1, 1990 · In this chapter, the sintering process is first described to identify the key steps of the process, that is, granulation and thermal densifiion. Discussion is then focused on the effect of the chemical, physical, and mineralogical characteristics of iron ore on these steps, and the consequences for sinter quality and sintering performance.
WEBJun 8, 2023 · Iron ore sintering is the iron ore powder agglomeration process that changes fine iron ore powder into the lumpy ironbearing raw material used for blast furnace ironmaking. Hightemperature process and addition of alkaline flux will improve metallurgical performance of ironbearing raw material. Besides, the sintering process .
WEBNov 21, 2014 · The size of iron ore affects the sintering properties. An increase in the size of iron ore promotes the productivity of sinter, but can reduce the tumbler strength slightly and save a little coke. The mineralogy of sinter can more easily be predicted from its chemical composition than its physical and chemical properties.
WEBDec 1, 2017 · To study the appliions of biomass as a source of energy in iron ore agglomeration process: Selected biomass are analysed chemically and microscopic studies are also performed. Structure and chemical composition of biomass and bioash are also discussed. Frohlichova et al. (2014) [4] To Substitute coke breeze by charcoal in .
WEBMay 1, 2020 · One of the most challenging issues of the actual steelmaking industry is the mitigation of CO 2 emissions. To cope with this target, the massive use of granulated biomass and fuel gas in the iron ore sintering process are a promising technological solution and can contribute to mitigating the environmental impacts of the steel plant.
WEBAug 16, 2023 · Applying hydrogenrich energy such as natural gas to replace coal/coke in the steel industry can efficiently mitigate CO 2 emissions and accelerate the process of carbon neutrality. Gas injection sintering technology has been widely used in industry for more than ten years, but the replacement ratio of solid fuels by hydrogenrich gas has .
WEBFeb 25, 2018 · Sinter yield and strength were predicted by the method of numerical simulation in this study. An unsteady twodimensional mathematical model for the iron ore sintering process was developed by taking most of the significant physical phenomena and chemical reactions into consideration. By employing FLUENT software and C .
WEBDec 1, 2018 · The softmeasuring model of thermal process established is applied in a sintering field of Chinese iron and steel plant. The setting value of TRP, BRP and BTP of the sintering machine was 28 m, 33 m and 39 m respectively, according to the data analysis of exhaust gas temperature in stable sintering state.
WEBJul 25, 2016 · 1. Introduction. The integrated iron and steel industry is the most energyintensive sector, accounting for 10–15% of the total energy consumption in the world [1].In 2009, the CO 2 emission from Chinese iron and steel sector is nearly equal to 50% of the world's steel industry's CO 2 emission [2].It is aimed at converting iron ore fines to .
WEBJan 15, 2022 · The iron ore sintering process is an agglomeration process to form highstrength sinter. It involves granulating the mixed ore, flux, and solid fuel, distributing the granulated materials in the bed, igniting the solid fuels (coke breeze), sintering the ironbearing materials via the combustion of solid fuel in a grate with air suction beneath ...
WEBDec 1, 2023 · As a preprocessing of blast furnace ironmaking, the iron ore sintering process accounts for 6–8% of the total energy consumption in the steel industry. About 75–80% of energy consumption is provided by coke, anthracite and other fossil fuels [8]. Using cleaner and more efficient fuels to replace fossil fuels such as coke and anthracite .
WEBOct 15, 2023 · 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 with the sinter in blast furnace burden. In this way, the productivity of the furnace considerably improves. In this paper, some fundamental aspects such as the ...
WEBJan 1, 2018 · The growth index of the quasiparticles increased by 30% when using iron ore AR2 to replace half of iron ore AR1. The vertical sintering speed and the productivity of sinter improved to mm ...
WEBJan 31, 2014 · For conventional iron ore sintering process, improving the raw materials is a practical measure to enhance production indices, and many researches have studied the issues of ore blending or ...
WEBMay 1, 2023 · Through recent studies, it was found that iron ore sintering can be used to treat MSWIFA(Gan et al., 2021). The use area of sintering machines in China has exceeded 160000 square meters, with an annual output of more than 1 billion tons of iron ore sinter, accounting for more than 60% of the global output(Ji et al., 2022).
WEBMar 9, 2020 · The accuracy and integrity of the actual production data influence the reliability and stability of sintering process in steel industry. However, the actual production data may encounter various outliers due to noise, sensor failure, and operator negligence existing in this process. To tackle this issue, this article develops an original framework .
WEBFeb 13, 2019 · Coke breeze is the main heat source in sintering process. Its combustion yields enough amounts of heat which melts the sinter mix. One of the factors that significantly affect the course of coke breeze combustion is its grain size [1,2,3].It is known that finegrained coke reduces permeability of the sinter mix and the use of coke breeze .
WEBJun 24, 2015 · It may be recalled that grinding iron ore grinding step as needed by pelletising technique. It may be recalled that grinding iron ore is very expensive process. The iron ore particles from 10mm to 3mm are accepted directly for sintering. The particles smaller than are nodulised to 3 – 4 mm size and then sintered. iii.
WEBMay 1, 2017 · Iron ore is the main responsible material for emissions of trace elements during sintering as it undergoes a series of physicochemical transformations throughout the process. In general, trace elements may remain in the solidstate, volatilize during combustion and recondense in the cleaning system, or remaining in the gaseous state .
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 ...
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 .
WEBJan 1, 2012 · 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 ...
WEBJan 24, 2020 · Aiming at reduction of carbon and nitrogen oxides emission in Iron ore sintering process and increasing of sintering productivity, a new technology of doublelayer presintering has been developed.
WEBJan 1, 2015 · 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 and the key steps of the sintering process, namely, granulation and thermal densifiion, are identified. Discussion is then focused on the effect of the chemical ...
WEBJun 1, 2021 · Recovery of highpurity NO 2 and SO 2 products from ironore sintering flue gas by distillation: process design, optimization and analysis
WEBJan 1, 2022 · Abstract. 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 ...
WEBSep 1, 2016 · Abstract. Sintering is the most economic and widely used agglomeration process to prepare iron ore fines for blast furnace use. Owing to the depleting reserves of traditional high grade iron ore, there have been considerable changes in iron ore resources available throughout the world, especially in steel mills in East Asia.
WEBApr 1, 2020 · The abnormal operating mode of the iron ore sintering process will produce sinter ore with low yield and poor quality. It is of high economic value to ensure that the sintering process runs under ...
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