heat consumption in iron ore sintering

heat consumption in iron ore sintering

Optimization of gaseous fuel injection for saving energy ...

2017-12-1  1. Introduction. Iron and steel industry is the highest (15% ) energy consumption sectors in China.Traditionally, coke breeze supplies heat for the iron ore sintering. Coking and sintering contribute the second highest (26% ) energy consumption in the iron and steel production.Iron ore sintering is a pre-treatment process to prepare porous sinters with suitable strength which are the burden ...

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Improving Energy Efficiency in Iron Ore Sintering

describe heat transfer from the flame front to the bed and is used in this study. Data on segregated beds from the literature is used in the simulations. The impacts of the factors were considered individually and then combined to determine their cumulative effect on heat transfer during sintering. 2. Segregation in Iron Ore Sintering 2.1.

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Reducing the Sintering Flue Gas Pollutants Emissions

2019-1-25  The energy consumption of iron ore sintering process accounts for 10–15% of the total energy consumption of steel manufacturing process. Meanwhile, the consumption of solid fuel accounts for 75–80% of the energy consumption of iron ore sintering process [1, 2].Most of SO 2 and about 90% of NO x are produced by the burning of solid fuel in iron ore sintering process [3, 4].

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Modeling of Combustion and Heat Transfer in an Iron

bed with sintering near the combustion front. An iron ore sintering bed is relatively homogeneous and static compared with waste incinerators of grate type. That makes it easier to model it as a fixed bed which moves at constant speed. Many researchers conducted modeling coke combustion and heat transfer in the iron ore sintering bed.

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Hot Airflow Ignition with Microwave Heating for Iron Ore ...

In iron ore sintering, ignition is to supply upper feed with sufficient heat to ensure the coke combustion and materials sintering. And with air draft, the sintering proceeds from upper feed to lower completely.1) The energy consumption of conventional iron ore ignition using coal gas (CGI) in the

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Improving Energy Efficiency in Iron Ore Sintering through ...

Iron ore sintering is an important pre-processing technology in integrated steel mills. Sinter accounts for around 70 wt.% of the ferrous feed to blast furnaces in the Asia-Pacific region. 1) Sinter making is a complex process and can be viewed as comprising bed preparation under ambient conditions (or cold processing) and subjecting the bed to high temperatures by generating a narrow, moving ...

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Improvement of heat pattern and sinter strength at high ...

2017-9-10  Iron ore sintering involves various physical and chemical phenomena such as heat and mass transfer, combustion, melting, solidification, evaporation and condensation. Traditionally, coke breeze is the main heat supplier for the iron ore sintering process. The detailed process is described in the published paper (Zhao et al., 2015).

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Modified coke breeze distribution in iron ore sintering ...

2021-2-9  MODIFIED COKE BREEZE DISTRIBUTION IN IRON ORE SINTERING - A NOVEL TECHNIQUE OF REDUCING ENERGY CONSUMPTION AND IMPROVING QUALITY J. Pal a,*, D. Prasad b,c, T. Venugopalan b a CSIR- National Metallurgical Laboratory, Jamshedpur, India b Tata Steel Ltd., Jamshedpur, India c Academy of Scientific and Innovative Research (AcSIR), CSIR- National

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Recent progress in sustainable and energy-efficient ...

2020-10-1  Iron ore sinter plants are energy-intensive components of integrated iron and steel production (see Table 1), where the iron ore fines (5 mm) lump sinter cakes with greater gas permeability, which are the most important burden materials for iron making in blast furnaces (BFs) [].The main process is shown in Fig. 2 and described in detail in previous studies

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Modelling fuel combustion in iron ore sintering ...

2015-4-1  Iron ore sintering is used all over the world to prepare agglomerates for the ironmaking blast furnace , . Figure 1 shows a schematic diagram of the major processes in a typical iron ore sintering plant. The blended sinter mix – typically composed of iron ores, fluxes, returned sinter fines, plant dust and about 4 wt.% coke breeze – is first granulated to coarsen its size distribution.

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Heat Consumption In Iron Ore Sintering

heat consumption in iron ore sintering Advances in Energy Conservation of China Steel Industry Hindawi. Feb 5, 2013 . It is pointed out that energy consumption per ton of crude steel has been almost one . of heating furnace, thick bed layers sintering operation, waste heat .. and fuel including iron ore, coal for coking, crude gas, and so forth.

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Lower Limit of the Energy Consumption and the Double ...

Energy Consumption Iron Ore Sintering* and the Double ... The lower limit of energy consumption in the actual iron ore sintering process was investigated by experiments and a simulation model. The energy consumption was reduced with the decrease in the induced air volume ... heat transfer rate under a low sinter productivity.

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Modeling of Combustion and Heat Transfer in an Iron

bed with sintering near the combustion front. An iron ore sintering bed is relatively homogeneous and static compared with waste incinerators of grate type. That makes it easier to model it as a fixed bed which moves at constant speed. Many researchers conducted modeling coke combustion and heat transfer in the iron ore sintering bed.

More

Modified coke breeze distribution in iron ore sintering ...

2021-2-9  MODIFIED COKE BREEZE DISTRIBUTION IN IRON ORE SINTERING - A NOVEL TECHNIQUE OF REDUCING ENERGY CONSUMPTION AND IMPROVING QUALITY J. Pal a,*, D. Prasad b,c, T. Venugopalan b a CSIR- National Metallurgical Laboratory, Jamshedpur, India b Tata Steel Ltd., Jamshedpur, India c Academy of Scientific and Innovative Research (AcSIR), CSIR- National

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Visualization Study on the Methane Segregation

2020-3-20  Key words: iron-ore sintering, gaseous fuel injection, methane concentration, fuel segregation, heat pattern 1. Introduction Iron ore sintering is a pre-treatment technology to convert iron ore fines into porous and permeable sinters which are the most important burden materials for blast furnace. The main process is described in detail in our ...

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Three Dimensional Mathematical Model of the Iron Ore ...

2020-1-11  which includes sintering and blast furnace processes, and only the sintering process represents around 20% of this amount1,5. Therefore, sintering and blast furnace processes offer good opportunities to decrease the CO 2 emissions since mall decreasing of the coke breeze consumption and bonding agent used in iron ore sintering process

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(PDF) ENERGY BALANCE OF SINTERING PROCESS

Key words: sintering process, material balance, heat balance 1 INTRODUCTION Sintering is one of the thermal processing methods of finely granular and dust iron ores to

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Combustion behavior of granulated coke breeze in iron

2018-12-1  1. Introduction. Iron ore sintering is a very important process which produces sinter as a major burden for blast furnace ironmaking. In this process, iron ore and auxiliary materials, e.g., fluxes, unqualified sinter (called return fine), and coke breeze, are

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Effects of Iron Ores on the Combustion Behavior of Coke ...

ing iron ore sintering process, which was called fuel NOx. NO was the majority of the fuel NOx, accounting for about 95%.5,6) CO and NO formed simultaneously during the solid fuel combustion process, and Hida 7–9) found that the et al. Effects of Iron

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Effect of Iron-Bearing By-products on the Emission of SO2 ...

2019-9-27  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. Four kinds of iron-bearing by-products were chosen to investigate the effect of them on the emission of SO2 and NOx and sinter quality through sinter-pot test. The results showed that all iron ...

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Lower Limit of the Energy Consumption and the Double ...

Energy Consumption Iron Ore Sintering* and the Double ... The lower limit of energy consumption in the actual iron ore sintering process was investigated by experiments and a simulation model. The energy consumption was reduced with the decrease in the induced air volume ... heat transfer rate under a low sinter productivity.

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Rate-Limiting Mechanism in Iron Ore Sintering Process

2021-2-4  Iron ore sintering is an agglomeration process, whose product, ... In the iron ore sintering process, the heat is supplied majorly by solid fuel. Higher is the solid fuel, more is the formation of Fe 3 O 4 and FeO [2, 3]. ... Consumption of solid fuel: 58 kg/t of sinter. 5.

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The Sintering Process of Iron Ore Fines – IspatGuru

2013-3-9  Sintering is a thermal process (carried out at 1300 deg C to 1400 deg C) by which a mixture of iron ore, return fines, recycled products of the steel plant industry (such as mill scale, blast furnace dusts, etc.), slag forming elements, fluxes and coke fines

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(PDF) ENERGY BALANCE OF SINTERING PROCESS

Key words: sintering process, material balance, heat balance 1 INTRODUCTION Sintering is one of the thermal processing methods of finely granular and dust iron ores to

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Iron Ore Sinter – IspatGuru

2014-7-15  Fig 1 A piece of sinter. In sintering, a shallow bed of fine particles is agglomerated by heat exchange and partial fusion of the still mass. Heat is generated by combustion of coke breeze admixed with the bed of iron ore fines, fluxes, and

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Combustion behavior of granulated coke breeze in iron

The iron ore sintering was characterized as a relatively uniform process of solid material, coke combustion, various modes of heat transfer, and the complicated physical changes of solid particles.

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Influence of O2 Content in Circulating Flue Gas on Iron ...

Flue gas recirculation sintering (FGRS) technology can reduce flue gas emissions and reuse waste heat effectively in iron ore sintering [1]. Five FGRS systems have been built or transformed in ...

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Mineralogy of Iron Ores of Different Alumina Levels from ...

2015-5-27  M. Sinha et al. 181 er less important sources are Carbonates (FeCO 3), Sulphides (Pyrite FeS 2) and Silicates like Chamosite, Grune- rite etc. with complex chemical formulae. The main impurities in iron ore are SiO 2, Al 2O 3, S, P, TiO 2, and Na 2O K 2O.Each steel company has its own blast furnace practice and the impact of these impurities varies accor-

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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

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SeqiOlivine Improves the Sintering and Pelletizing ...

2017-2-6  the blast furnace process, to the sintering of iron ore and iron ore pelletizing are the main areas. In this investigation the usefulness of the olivine mined at Greenland for sinter – and pellet production was studied. The chemical analysis of the olivine from Greenland shows an olivine mineral with high fosterite content.

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