Iron Ore Sintering: Quality Indices
Sinter plants process a mixture of iron ore fines, recycled ironmaking products, slag-forming agents and solid fuel (coke) with the finality of obtaining a product …
Dynamic Model of High-Temperature Sintered Iron …
Each ore particle whose reduction has progressed by contact with the reducing gas is composed of two regions: an unreduced part (core) with a low melting … See more
Application of deep learning in iron ore sintering process: a …
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, the sintering operation process, and the treatment of the sintered ore [39, 40].2.2 Important parameters and characteristics of sintering process. As shown in Fig. 2, all …
Combustion mechanism of benzene in iron ore sintering …
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 ].
Iron Ore Sintering: Raw Materials and Granulation
separation ore-gangue. Carlson et al., 2008, studied the parti-cle shape on the filtration rate of iron concentrates, and they observed differences up to 60% as a function of the mine's
Sintering: Most Efficient Technologies for Greenhouse …
Iron ore sintering creates substantial off-gas volumes, and treating these in order to meet increasingly stringent environmental standards is expensive. Conventional sintering uses ambient air to transport heat within the sinter bed, requiring a high air flow rate. However, EOS takes advantage of the fact that only a part of the oxygen in the ...
Iron Ore Sintering: Raw Materials and …
separation ore-gangue. Carlson et al., 2008, studied the parti-cle shape on the filtration rate of iron concentrates, and they observed differences up to 60% as a function of the mine's
Use of coke oven gas in iron ore sintering
In this study, a sintering model is proposed to evaluate the injection of coke oven gas in the process. We analyze five cases of coke oven gas injection always seeking a stable operational process ...
Reductants in iron ore sintering: A critical review
2. Reductant for iron ore sintering. Fuel is a combustible substance whose main constituent is carbon which on burning gives a large amount of heat which can be used economically for domestic and industrial use. During combustion, carbon, hydrogen, and oxygen combine to liberate heat.
The Sintering Process of Iron Ore Fines – IspatGuru
The process of sintering is basically a pre-treatment process step during iron making for the production of the charge material called sinter for the blast furnace from iron ore fines and also from …
Basics of Iron Ore Sintering | SpringerLink
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 …
Numerical Modeling of the Iron Ore Sintering Process
Iron ore sintering in volves the movement of a flame front down a p articulate bed, and a se ries of phys-. ico-chemical reactions over a large temperature range. In the li terature simple and ...
Iron Ore Sintering: Raw Materials and Granulation
Abstract and Figures. 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 a product ...
Model of an iron ore sinter plant with selective waste gas
The use of sinter influences hot metal production substantially and significantly affects an integrated steel mill's total emissions. Sintering of iron ores is an enormous energy-intensive and resources consuming process. Introducing a selective waste gas recirculation (SWGR) to the sintering process reduces the energy …
A Case Study of Sintering with Low Silica Iron Ore
The low-silica and low basicity sintering is an effective measure for improving iron grade of sinter and reducing the slag amount of ironmaking and steelmaking. Sintering of the mixture at basicity (1.9, 1.8, and 1.7) and SiO 2 content (5.0, 4.9, 4.8, 4.7, and 4.6) were conducted in a sintering pot, and the microstructures of …
Compound Use of Chemical Waste as Flux in Iron Ore Sintering
As a result, yearly average productivity of 1.41 t/ m2 / h and the use of 135 kg/t-sinter Brazilian concentrated ultra fine ore were achieved with 1 350 MJ/t-sinter heat consumption for sintering ...
Iron Ore Sintering: Raw Materials and Granulation
Granulation consists of the homogenization of iron ore mixture in a rotationdrum with 7-8% water for a few minutes with the finality of obtaining a pre-agglomerated product. The process has dura ...
Influence Mechanism of Zn on the Iron Ore-Sintering …
Recovery of metallurgical dust by sintering inevitably incorporates Zn into the sintered ore, which can have a significant impact on the ore formation process and the quality of the resulting ore. Through miniature-sintering experiments and theoretical first-principles calculations, this paper analyzes in detail the influencing mechanism of Zn on …
Green Iron Ore Sintering
The iron blast furnace is the most widely used and efficient producer of liquid iron. The integrated steel works is however under environmental pressure largely due to emissions from sintering and coking. The combustion of coke breeze during sintering contributes to greenhouse gases (eg carbon dioxide) and is the source of much of the emissions of …
(PDF) Iron Ore Sintering Process with Biomass
charcoal in iron ore sintering process. The applied biom ass is prepared by the pyrolysis of woody pellets in muffle furnace under inert atmosphere at t he same temperature as coke breeze is produced.
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 …
Sintering | SpringerLink
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 …
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 ...
Operating mode recognition of iron ore sintering process …
Sintering is a thermal agglomeration process, and its main raw materials are iron ore, returning sinter ore, fluxes, and coke (Fernández-González, Ruiz-Bustinza, Mochón, González-Gasca, & Verdeja, 2017). The high energy consumption and serious pollution associated with the sintering process have always been an important concern …
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 …
Research progress on multiscale structural characteristics …
Iron ore sinters are prepared by various types of iron ore fines, fluxes, fuels, returned sinters and dusts in a certain proportion and an appropriate amount of water, which are mixed by pelletizing and sintered on a belt sintering machine under certain negative pressure, ignition and combustion conditions.
Operational and environmental assessment on the use of charcoal in iron
The sintering process is a well-established process in use at integrated steel making plants. It consists of an agglomeration through an oxidizing/reducing fusion of iron ore fines (sinter feed) and fluxing agents (lime, limestone, etc.) as well as re-circulated materials (dust, sludge, etc.) at temperatures between 1200 °C to 1400 ° C. A carbon …
Quantitative XRD analysis and evaluation of iron ore, sinter, …
In iron ore sinter, the presence and abundance of different phases reflects the differences in sinter blend compositions as well as sintering additions. The method can therefore be of use in the research of the correlation between the ore characteristics, sinter characteristics and sinter quality to develop stronger, more reducible sinter of ...
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.
Sintering emissions and their mitigation technologies
Waste gases from iron ore fine preparations for blast furnace ironmaking, or sintering, contain minute quantities of acidic species, dust, and dioxin pollutants, but because of the very large quantities of iron ore processed and the large volume throughput of air involved, sintering is a major source of these emissions and also CO 2 into the …
Forecasting of iron ore sintering quality index: A latent …
The dataset used for this work is collected from a real iron ore sintering process, the layout of which is provided in Fig. 1.To cope with the problem of time delay between process variables and quality index, data collection is conducted based on the sampling point distance and the running state of the sintering process.
(PDF) Iron ore sintering. Part 1. Theory and practice of the sintering
Sintering is a process where a mixture of ore, flux and coke is agglomerated (agglomerated) in the sinter plant to produce suitable sintered products in terms of composition, quality and ...
Disposal of zinc extraction residues via iron ore sintering
The iron ore sintering process has the capability to handle and utilize complex raw materials, allowing for the reasonable utilization of zinc extraction residue. The addition of zinc extractant has been found to improve the sintering index, metallurgical properties, and gaseous pollutant emissions without significant negative effects. ...
(PDF) Iron Ore Sintering: Process
The sintering process, depicted in Figure 1, involves the application of heat to fine iron ore particles, transforming them into coarser grains [16]. Firstly, various raw materials, including iron ...
Advances in Sintering of Iron Ores and Concentrates
Chapter "Sintering of iron ores and concentrates" is focusing on the study of theoretical, thermodynamic and experimental results in the production of sinters from …
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 …
Ore Sintering
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 ...
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 described to identify the key steps of the process, that is, granulation and thermal densification. Discussion is then focused on the effect of the chemical, physical, and ...
Biomass–Coal Hybrid Fuel: A Route to Net-Zero Iron Ore Sintering …
The global steel industry uses fossil fuels to produce millions of tonnes of iron ore sinter each year. Sintering is an energy-intensive process that fuses iron ore and flux to produce material that balances a high mechanical strength at a sufficient particle size to ensure a macroporous burden in the blast furnace to enable rapid gas flow. As …
Synergistic conversion of iron ore sintering dust and waste …
The sintering dust acted as a catalyst and oxygen carrier to support the biochar conversion to produce more CO and CH 4, while the biochar acted as a reducing agent to reduce the iron oxides in the sintering dust to metallic iron. The gasification and reduction were coupled and promoted by each other at 1000 °C for 60 min with 1.2 mol …