WEBOxygen enrichment is believed to improve productivity and reduce fuel consumption, while gas fuel injection is assumed to improve the product yield and quality in iron ore sintering process. It is important to understand the mutual effect of oxygen enrichment and gas fuel injection for combined usage of these two techniques. A mathematical model is .
WEBJul 1, 2020 · The proportioning of iron ore is the first step of the sintering process. It mixes different kinds of iron ores with coke, limestone, dolomite, and returned sinter to produce a raw mix for the ...
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 .
WEBJun 1, 2021 · Sintering, a primary way to make highquality artificial iron ore from lowgrade iron ore, has received widespread attention. Sintering is a thermal agglomeration process, which involves several chemical–physical reactions (Chen et al., 2020). Burnthrough point (BTP) is a parameter with significant meaning in the iron ore sintering .
WEBMay 1, 2021 · Abstract. Tumble Strength (TS) of iron ore sinter, affected by numerous factors, is considered as a vital performance to assess sinter quality for blast furnace (BF) ironmaking. For the sake of ...
WEBDec 1, 2023 · Iron ore sintering is one of the key steps in the ironmaking process, where granulated pellets are transformed into sinter in the sintering machine, providing an ideal raw material for ironmaking ...
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.
WEBMay 3, 2024 · Section snippets Materials. The coal gangue (CG) used in this study was sourced from Shijiazhuang, Hebei. The CG blocks were subjected to drying in an oven at 90 °C for 24 hours, and ground for hours after drying, with an average particle size of μm and a specific surface area of 505 m 2 /kg after grinding. The iron ore tailings .
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.
WEBApr 2, 2010 · Iron ore sintering is a material preparation process employed worldwide in the production of iron and steel. According to statistical data on pollution, sintering plants rank second in terms of toxic emissions, after the incineration of municipal solid waste (Menad et al., 2006; Remus et al., 2013 ). Of the eight CORINAIR (Core Inventory of Air ...
WEBJun 1, 2021 · Recovery of highpurity NO 2 and SO 2 products from ironore sintering flue gas by distillation: process design, optimization and analysis
WEBJun 1, 2016 · This study introduces a comprehensive 1D mathematical model of the iron ore sintering process by considering FGRS technology. This multiphase theorybased model considers most of the primary phenomena that occur in the sintering process, including the nine kinds of major gas–solid and gaseous reactions.
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.
WEBAs a key thermalstate indior of the iron ore sintering process, the content of ferrous oxide (FeO) in the finished sinter is directly related to product quality. Based on the massive data of sintering process, the datadriven soft sensor model provides a good choice for realtime FeO content detection. However, the complex characteristics of the data, .
WEBA key energy consumption in steel metallurgy comes from an iron ore sintering process. Enhancing carbon utilization in this process is important for green manufacturing and energy saving and its prerequisite is a timeseries prediction of carbon efficiency. The existing carbon efficiency models usually have a complex structure, leading to a time .
WEBOct 19, 2016 · Basic sintering technology. The sintering technology is basically an agglomeration process for the iron ore fines which is dependent on heat to melt the surface of the smaller particles together to form larger agglomerates. A typical sinter plant consists of a number of sequential operating units with the sinter machine at the heart of .
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 ...
WEBOct 29, 2023 · Iron ore sintering was a semimelting process. Firstly, iron ore particles reacted with fluxes and generated liquid phase at high temperatures. Then, the liquid phase combined the dispersive unreacted iron ore (usually the core of coarse particles), and the liquid phase recrystallized and formed the bonding phase during cooling [12, 13]. In the ...
WEBJul 8, 2013 · The sintering process is used to agglomerate a mix of iron ore fines, return fines, fluxes, and coke, with a particle size of less than 10 mm, so that the resulting sinter, with a screened size of 5 mm to 30 mm, can withstand pressure and temperature conditions in the blast furnace (BF). The process of sintering of iron ore fines was primarily ...
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 identify the key steps of the process, that is, granulation and thermal densifiion. Discussion is then focused on the effect of the chemical, physical ...
WEBMar 1, 2019 · The iron ore sintering, an energyintensive industry, contributes to large emissions of Volatile Organic Compounds (VOCs) due to its high dependence on fossil fuels. The emissions of VOCs from the iron ore sintering process have been ignored until now, despite the welldocumented atmospheric and human health hazards associated .
WEBJan 21, 2016 · Optimization of iron ore sintering process is to maximize the productivity and the sinter ore quality while minimizing the energy consumption. However, these economic and technical criteria are sometimes contradictory and the improvement of one criterion generally leads to the deterioration of other criteria. This paper aims to seek the .
WEBDec 1, 2012 · The iron ore sintering process is a key technology in the steel industry due to its possibility of recycling waste solids or powders internally produced during the raw materials handling or ...
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.
WEBMay 10, 2016 · This work presents the results of bench calcination and sintering studies conducted on an iron ore sample from Iron Quadrangle, Brazil with high goethite content. The natural samples and the products of calcination and sintering were characterised by inductively coupled plasma optical emission spectroscopy (OES/ICP), Xray .
WEBNov 16, 2020 · The sinter process of iron ore with biomass carbon instead of coke breeze as fuel was investigated via thermodynamic analysis in this paper through a comparison of sinter composition indexes, metallurgical properties, and pollutant emissions. Straw charcoal was used in this paper, and its replacement does not adversely affect the .
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