Selective separation of anglesite from iron ore sintering …
— 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 ...
Application of deep learning in iron ore sintering process: a …
— The production of blast furnace ironmaking depends on large part on the sintering of iron ore; thus, it is crucial to model, simulate, and optimise the sintering …
Iron Ore Sinter
Sintering is the most economic and widely used agglomeration process for preparing iron ore fines for blast furnace use. The product of the sintering process is conveyed and …
Effect of biochar substitution on iron ore sintering …
— In the iron ore sintering field, the yield, productivity and tumbler index (TI) is commonly used to characterize the sinter quality [19]. The yield (%) is the proportion of the mass of the sinter with a size greater than 5 mm after crushing and screening minus 1 kg ore at the bottom of the hearth layer to the total mass of the sinter.
Reductants in iron ore sintering: A critical review
— 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 ...
Sintering: A Step Between Mining Iron Ore and …
— According to the U.S. Environmental Protection Agency, the sintering process converts fine-sized raw materials, including iron ore, coke breeze, limestone, mill scale, and flue dust, into an agglomerated …
New understanding about the relationship between surface ignition and
— The present research aims to reveal the relationship between surface ignition and iron ore sintering performance and to elucidate the deep mechanism. The main findings were summarized as follows: (1) Optimizing the ignition parameters effectively improved the quality of the surface sinter, and the recommended ignition parameters included ...
Comprehensive evaluation of hydrogen-rich energy application in iron
— The iron ore sintering, as an essential raw material treatment process of blast furnace, mainly uses coke or anthracite as a heat source and emit a large amount of greenhouse gas (Annual Conference on Sintering & Pelletizing Technology, 2022), which is not consistent with the current environmental protection requirements.
Recent progress in sustainable and energy-efficient technologies …
— 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) lump sinter cakes with greater gas permeability, which are the most important burden materials for iron making in blast furnaces (BFs) [7].The main process is shown …
Influence of iron ore properties on dioxin emissions during iron ore …
— He, H. et al. Emission characteristics of dioxins during iron ore Co-sintering with municipal solid waste incinerator fly ash in a sintering pot. Chemosphere 287 (Pt 1), 131884 (2022).
Co-utilization of converter sludge-containing dedust wastewater in iron
— However, iron ore sintering has a low removal rate of harmful elements. Lanzerstorfer (Lanzerstorfer et al., 2015) indicated that Zn contained in the iron ore was hardly reduced through sintering, and the zinc in the dust was discharged with the off-gas to an extent of about 25% pot test. Theoretical analysis and experiments showed that all …
Sintering
— The sintering process can be defined as 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) with the objective of obtaining a product with the suitable characteristics (thermal, mechanical, physical, and chemical) to be fed to the …
Multi-time-scale TFe prediction for iron ore sintering …
— An iron ore sintering process is the first procedure of steel-making 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 index …
Iron Ore Sintering
— Iron ore sintering is the iron ore powder agglomeration process that changes fine iron ore powder into the lumpy iron-bearing raw material used for blast furnace …
Iron ore sintering with charcoal
— 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 ...
Operating mode recognition of iron ore sintering process …
— The iron ore sintering process includes proportioning, mixing and granulating, feeding, igniting, sintering with ventilation, crushing, cooling and screening phases (Du et al., 2020, Hu et al., 2018). The operators are most concerned with the combustion process on the sinter strand, as shown in Fig. 1.
Iron ore sintering
— 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 …
A Novel Sintering Process for Porous Iron Ore Sintering …
— 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 …
Iron Ore Sinter
Automated optical image analysis of natural and sintered iron ore. E. Donskoi, ... J.R. Manuel, in Iron Ore, 2015 4.2.2 Sinter. Low-temperature (< 1300 °C) iron ore sinter is an agglomerate of unmelted and partially melted nuclei particles (+ 1 mm) and a matrix bonding phase produced from the melting of fine ore (− 1 mm) and flux particles, with …
Mechanisms in oxidation and sintering of magnetite iron ore …
— In the present work, oxidation and sintering mechanisms in iron ore green pellets under non-sintering and sintering conditions were studied. The intent was to get more information about the sensitivity of the formation of duplex structures for variations in raw material fineness and in green pellet porosity. 2. Materials and methods2.1.
Iron Ore Sintering: Process: Mineral Processing and Extractive
— 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 …
Optimization of iron ore sintering process based on ELM
— 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 optimal …
Iron Ore Sintering: Raw Materials and Granulation
— Sintering is an agglomeration process that fuses iron ore fines, fluxes, recycled products, slag-forming elements and coke. The purpose of sintering is to obtain …
Recent advances in iron ore sintering
— 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 …
Iron Ore Sintering
— Iron ore sintering is the iron ore powder agglomeration process that changes fine iron ore powder into the lumpy iron-bearing raw material used for blast furnace ironmaking. High-temperature process and addition of alkaline flux will improve metallurgical performance of iron-bearing raw material. Besides, the sintering process will consume …
A Case Study of Sintering with Low Silica Iron Ore
— The experimental procedure is a traditional iron ore sintering process, which is shown with a schematic diagram in Fig. 1. In this study, all of the experiments were carried out in a pilot-scale test with a 170 mm diameter sintering pot.
An efficient method for iron ore sintering with high-bed
— It can be seen from Tables 1 and 2 that the blend with high iron grade has a high content of FeO (14.51 wt.%) because it consisted of 70 wt.% magnetite concentrate and 30 wt.% fine ore. The coke breeze has high fixed carbon content (83.37 wt.%) and low volatile matter content (1.57 wt.%). 2.2 Methods. The double-layer sintering process is …
Sintering & Pelletisation – Carbon steel materials
Sintering is the most widely used agglomeration process for preparing iron ore fines for blast furnace applications. We are using our expertise in iron ore sintering and evaluation of blast furnace burdens to assist industry to maximise the value of their resources, optimise product quality and reduce their environmental footprint.
Investigation on the evolution characteristics of bed porous …
— Iron ore sintering is a pre-process of blast furnace ironmaking, which is very important for iron and steel production. In the iron ore sintering process, raw materials such as ore, flux, fuel and return ore are evenly mixed and granulated with water to form quasi-particles with larger particle sizes and stacked on the sintering machine. The ...
Iron ore sintering
— Like other sintering processes, iron ore sintering converts iron ore fines of often − 8 mm sizing into larger agglomerates, namely, sinter, between 5 and 50 mm particle size, which possess the physical and metallurgical characteristics and gas permeability required for efficient blast furnace operation.As shown in Figure 14.1, iron ore sintering …
Recent advances in iron ore sintering
— 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.
Iron Ore Sintering: Process
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 of the sintering process is manufacturing a product with the suitable characteristics (thermal, mechanical, physical and chemical) to be fed to the blast furnace.
Numerical research on combining flue gas recirculation sintering …
— 1. Introduction. Iron ore sintering is a complicated thermo-chemical process comprising various reactions and phase changes, and the cooled sintered ore produced is the main raw material for blast furnaces in most iron and steel plants [1].Iron ore sintering also entails high energy consumption and produces significant pollution, contributing the …
Forecasting of iron ore sintering quality index: A latent …
— In this case, the iron ore sintering process serves as the first step in the ironmaking process and provides the main raw material for the blast furnace. The sintering process consists of the following three phases (Er et al., 2000). First, the raw materials including iron ore, coke, coal, quick lime, returned sinter, and other additives are ...