experiences in the sintering of iron ores

experiences in the sintering of iron ores

Some experiences in the sintering of iron ores

2012-6-15  Some experiences in the sintering of iron ores S. JAYARAM, D. D. BHUPTANI, P. MEHTA, and F. W. KOKO AS PART of a 2 m. ton expansion project, the Tata Iron and Steel Company set up an ore-crushing and sintering plant to provide a sized ore plus sinter feed to the blast-furnaces. The sinter plant started operation in late 1959,

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Some experiences in the sintering of iron ores - CORE

Some experiences in the sintering of iron ores . By S Jayaram, D D Bhuptani, P Mehta and F W Koko. Get PDF (1 MB) Abstract. As part of a 2m. ton expansion project, the Tata Iron and Steel Company set up an ore-crushing and sintering plant to provide a sized ore plus sinter feed to the blast-furnaces. ...

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CHAPTER-11 FUNDAMENTALS OF IRON ORE SINTERING

2012-8-16  Fig. 11.3: Factors involved in the granulation and sintering of iron ores The following factors play major roles in controlling the granulation characteristics of sinter mix. PIO- 07 137 . 1 rot,

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Formation of NO and SO2 in the Sintering Process of Iron ...

2021-10-27  Ore A has goethite[FeO(OH)] as the main phase and contains 0.06 wt pct sulfur. But Ore B has Fe 2 O 3 as the main phase and contains 0.03 wt pct of sulfur. In the sinter mix condition, ores A and B were mixed in the weight ratio of 8 to 2, which simulated the use of various iron ores mixed in the actual sintering process.

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Theory and Practice of Sintering of Iron ore – IspatGuru

2018-11-25  Theory and Practice of Sintering of Iron ore. Sintering of iron ore is a generic term which is used to describe the process whereby a sinter mix (raw mix or green mix) of iron ore fines, fluxes, fuel (coke breeze) and plant return fines (e.g. mill scale, blast furnace dust, and returned sinter fines etc.) are converted into a particular form of ...

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The Sintering Process of Iron Ore Fines – IspatGuru

2013-3-9  The sintering process is used to agglomerate a mix of iron ores (blend), return fines, fluxes and coke, with a particle size of less than 10 mm, so that the resulting sinter, with a screened size of 10 mm to 30 mm, can withstand pressure and

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Formation of NO and SO2 in the Sintering Process of Iron

Iron-bearing by-products are rich in iron and carbon and are often reused in the iron ore sintering process. However, there are fewer studies on the effect of them on sintering flue gas pollutants.

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Sintering: A Step Between Mining Iron Ore and Steelmaking

2019-6-11  Sintering: A Step Between Mining Iron Ore and Steelmaking. The USGS defines iron ore as a mineral substance which, when heated in the presence of a reductant, will yield metallic iron (Fe). It almost always consists of iron oxides, the primary forms of which are magnetite (Fe3O4) and hematite (Fe2O3). It’s a major ingredient in steel.

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Behavior of dioxins in the sintering process of iron ores ...

In 1997, a collaborative research project was formed by the researchers and engineers of Japanese integrated steel makers and universities, in order to investigate the behaviors of dioxins and relating substances in the sintering process of iron ores and to search for new technological principles for suppression of the emissions rather than ...

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Influence of gangue existing states in iron ores on the ...

2017-8-29  G.L. Zhang et al., Influence of gangue existing states in iron ores on the formation and flow of liquid phase during sintering 965 that Al2O3 in the Fe2O3–Al2O3 mixture blocked the in- ter-diffusion of Fe2O3 and CaO, decreasing the formation speed of calcium ferrite. In addition, because the standard Gibbs free energy of CaO2Al2O3 is small, CaO shows a

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Formation of NO and SO2 in the Sintering Process of Iron

Iron-bearing by-products are rich in iron and carbon and are often reused in the iron ore sintering process. However, there are fewer studies on the effect of them on sintering flue gas pollutants.

More

Sintering of Iron Ores in a Millipot in Comparison with ...

2018-8-1  To explore the feasibility of small-scale sintering pot testing, a ‘millipot’ facility (diameter of 53 mm and height of 400 mm) was established and used to examine the sintering performance of iron ores and other non-traditional ferrous materials. The sintering performance of a millipot was examined across a range of different operational conditions (coke rate and suction pressure) and ...

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Theory and Practice of Sintering of Iron ore – IspatGuru

2018-11-25  Theory and Practice of Sintering of Iron ore. Sintering of iron ore is a generic term which is used to describe the process whereby a sinter mix (raw mix or green mix) of iron ore fines, fluxes, fuel (coke breeze) and plant return fines (e.g. mill scale, blast furnace dust, and returned sinter fines etc.) are converted into a particular form of ...

More

CHAPTER-11 FUNDAMENTALS OF IRON ORE SINTERING

2012-8-16  Fig. 11.3: Factors involved in the granulation and sintering of iron ores The following factors play major roles in controlling the granulation characteristics of sinter mix. PIO- 07 137 . 1 rot,

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Ore Sintering - an overview ScienceDirect Topics

2010-4-2  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 is carried out in three stages: raw material ...

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Experimental Research on Bonding Intensity of Iron Ores in ...

After the reduction, the volume distribution of 0.5-3.5 nm micropores increased doubly, the tendency of the micropore size distribution is similar to that in iron ores, especially, the volume ...

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Behavior of dioxins in the sintering process of iron ores ...

In 1997, a collaborative research project was formed by the researchers and engineers of Japanese integrated steel makers and universities, in order to investigate the behaviors of dioxins and relating substances in the sintering process of iron ores and to search for new technological principles for suppression of the emissions rather than ...

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Effect of Raw Material Composition on the Sintering

A number of the commercial iron ores were tested in a sinter pot to study the effect of iron ore composi-tion on the sintering properties. In the sintering of individual iron ores, under the sinter controlled at the same levels of basicity, SiO 2 and MgO, the sintering properties varied with iron

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Behavior of Liquid Phase Formation during Iron Ores

The calculations reported in this study can be used to estimate the sintering behavior of the iron ores under a certain industrial condition to reduce the extra experiments. The experiments also shows that the calculations by Factsage can give some good explanations on the phenomenon of the melting behavior of different samples.

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Influence of gangue existing states in iron ores on the ...

2013-11-21  Gangue existing states largely affect the high-temperature characteristics of iron ores. Using a micro-sintering method and scanning electron microscopy, the effects of gangue content, gangue type, and gangue size on the assimilation characteristics and fluidity of liquid phase of five different iron ores were analyzed in this study. Next, the mechanism based on the reaction between gangues ...

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Advances in Sintering of Iron Ores and Concentrates ...

2020-10-28  Chapter “Sintering of iron ores and concentrates” is focusing on the study of theoretical, thermodynamic and experimental results in the production of sinters from iron ores and concentrates. The authors of the chapter have long been interested with the production of sinter from iron ores and have recently also focused on the use of biomass as a substitute for a part of coke breeze in the ...

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Theory and Practice of Sintering of Iron ore – IspatGuru

2018-11-25  Theory and Practice of Sintering of Iron ore. Sintering of iron ore is a generic term which is used to describe the process whereby a sinter mix (raw mix or green mix) of iron ore fines, fluxes, fuel (coke breeze) and plant return fines (e.g. mill scale, blast furnace dust, and returned sinter fines etc.) are converted into a particular form of ...

More

Behavior of dioxins in the sintering process of iron ores ...

In 1997, a collaborative research project was formed by the researchers and engineers of Japanese integrated steel makers and universities, in order to investigate the behaviors of dioxins and relating substances in the sintering process of iron ores and to search for new technological principles for suppression of the emissions rather than ...

More

Experimental Research on Bonding Intensity of Iron Ores in ...

After the reduction, the volume distribution of 0.5-3.5 nm micropores increased doubly, the tendency of the micropore size distribution is similar to that in iron ores, especially, the volume ...

More

Sintering Characteristics of Iron Ores with Addition of ...

A great deal of iron ores which have special elements have been applied in the sintering process with the decreasing of high-grade quality iron ores resources. In this paper, the laterite nickel ores were added into three different kinds of iron ores respectively to make liquid phase formation research by software of Factsage and high temperature characteristic sintering experiments.

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Sintering Properties and Optimal Blending Schemes of

2012-6-1  VALE Shanghai Office, Shanghai 200070, China) Abstract: In order to obtain good sintering performance, it is important to understand sintering properties of iron ores. Sintering properties including chemical composition, granulation and high-temperature behaviors of ores

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Lower SO2 Emissions in the Sintering Process Utilizing

2 Emissions in the Sintering Process Utilizing the Difference of Sulphur Contents of Iron Ores Junmao QIE,1,2)* Chunxia ZHANG,1) Xiuping LI,1) Yuhua GUO,1) Haifeng WANG1) and Shengli WU2) 1) State Key Laboratory of Advanced Steel Process and Products, Central Iron

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[PDF] Ore Assimilation and Secondary Phases by Sintering ...

During the iron ore sintering process, two types of particles are present in the sinter bed: (1) fines, which are actively taking part in melting and the formation of secondary phases, and (2) coarse ores, which are partially interacting with the surrounding melt. The quality of the final sinter is particularly determined by the secondary phases and their bonding ability.

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Influence of gangue existing states in iron ores on the ...

2013-11-21  Gangue existing states largely affect the high-temperature characteristics of iron ores. Using a micro-sintering method and scanning electron microscopy, the effects of gangue content, gangue type, and gangue size on the assimilation characteristics and fluidity of liquid phase of five different iron ores were analyzed in this study. Next, the mechanism based on the reaction between gangues ...

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Evaluation of iron ore fines from the viewpoint of their ...

2013-7-18  The sintering properties of ores are evaluated separately according to each stage in sintering process, which is the heating stage before melt formation, primary melt formation in adhering fines layer of pseudoparticles, and assimilation of nucleus ore particle with calcium ferrite system melts.

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