0086-21-58386256
18-06-2019· But before all that iron ore can be turned into steel, it must go through the sintering process. Sinter is the primary feed material for making iron and steel in a blast furnace. We recently wrote about sintering in our sister blog, Advancing Mining. Read the article to learn more about how sinter quality begins with the mined iron ore …
18-06-2019· Sinter is the primary feed material for making iron and steel in a blast furnace. We recently wrote about sintering in our sister blog, Advancing Mining . Read the article to learn more about how sinter quality begins with the mined iron ore and the proper selection and mixing of the raw materials.
10-05-2016· The presentation describes sinter structures, bonding, mineralogy, quality and other details of iron ore sinter. it also tells types of sinters
01-01-2015· 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 ...
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 …
21-06-2018· Figure: Sintering of iron ores. During pelletizing, ore powder is rolled into iron ore green pellets in rotating drums together with water, binding agents and additives. Globules with grain sizes of approx. 15 mm are produced, which are then baked into …
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.
23-06-2021· This study aims to understand the effect of sintering at 1623 K on the reaction characteristics of iron ores. By investigating the reaction characteristics of nine different iron ores with disparate properties, new reactivity indices including the iron ore reactivity index (IRI) and iron ore blending reactivity index (IBRI) independent of the sample size are derived based on the melt ...
09-03-2013· 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 are agglomerated in a sinter plant with the purpose of manufacturing a sintered product of a suitable chemical composition, quality ...
Modeling Sintering Process of Iron Ore. Modeling Sintering Process of Iron Ore 25 Fig 2 Thermal cycle of the materials in the sinter strand Several attempts have been done to …
Sintering takes the iron ore fines and agglomerates them into strong lumps capable of being used in the furnace. It also concentrates the iron percentage being supplied to the furnace. Aberpergwm products for metal processing: • Beans size 1 and size 2 are used as charge carbon in steel or other metal smelters such as precious metals.
21-11-2013· 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.
1. INTRODUCTION. The sintering process is used to agglomerate a mix. of iron ores (natural or synthetic), return fi nes, fl uxes. and coke, with a particle size of <8 mm, so that the. resulting ...
FUNDAMENTALS OF IRON ORE SINTERING R. P. Bhagat INTRODUCTION The process of sinter making originated from a need to make use of fines generated in mines and in ore benefiCiation plants. With the development of sintering technology, a sintering plant has become a tremendous success for providing a phenomenal increase in
Sintering or frittage is the process of compacting and forming a solid mass of material by heat or pressure without melting it to the point of liquefaction.. Sintering happens naturally in mineral deposits or as part of a manufacturing process used with metals, ceramics, plastics, and other materials.The atoms in the materials diffuse across the boundaries of the particles, fusing the ...
ROM iron ore with Fe less than 58 – 60% discarded as waste. After beneficiation iron ore availability can improve by about 50%. Steel community and the country demand technological solutions for utilising low grade ores. The technology task that would be imperative: 1. Utilisation of low grade iron ores …
The iron ore used presents a low MgO content (0.01%) and a high Al2O3 content (2.99%). It was seen that raising the MgO content in the sinter, from 1.4 to 2.6%, increased the FeO content and decreased productivity and the RI, RDI and TI indices [13]. 2.1.4.
23-03-2012· Modeling Sintering Process of Iron Ore, Sintering - Methods and Products, Volodymyr Shatokha, IntechOpen, DOI: 10.5772/33613. Available from: Jose Adilson de Castro (March 23rd 2012).
11-06-2019· Sinter quality begins with the mined iron ore and the proper selection and mixing of the raw materials. Inhomogeneous raw mix can affect permeability and cause an increase in fuel consumption. During the iron ore sintering process in iron and steel manufacturing, an online analyzer can be used to determine the elemental composition of the bulk raw materials in sinter …
In iron ore sintering, the properties of the flame front are clearly critical as they determine the heat imparted to the particulate bed and, hence, the strength of the formed sinter. This study explores the fac-tors that influence flame front temperature and also the speed at which it descends down a bed.
19-08-2019· Table of ContentsCharacteristic Data of Ores and AdditiveCharacteristic Data of the ExperimentsSinter OutputPhysical Quality and Structure The authors investigate the influence of the basicity index CaO/SiO2 on the sintering properties of hematite ore mixtures. The experimentation was performed with three different mixtures of ores from Tazadit, Nimba, Mano-River, Itabira, Marcona, …
02-04-2010· As described in Chapter 14 on iron ore sintering, sintering involves the combustion of fossil fuels like coal and coke breeze to generate the heat required for sintering reactions. Therefore, emissions from the sintering process arise primarily from the combustion reactions in the sintering bed on the traveling sinter strand.
09-03-2013· 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 metallurgical wastes (collected dusts, sludge and mill scale etc.).
01-03-2012· An ore-blending optimization model for the sintering process is an intelligent system that includes iron ore characteristics, expert knowledge and material balance. In the present work, 14 indices are proposed to represent chemical composition, granulating properties and high temperature properties of iron ores. After the relationships between iron ore characteristics and sintering performance ...
25-11-2018· During the sintering process, the chemical reactions are taking place at high temperature and the iron ore and fluxes are combined together and form a sinter cake composed of iron ore, silico-ferrites of calcium and aluminum (SFCA), dicalcium silicate and a glassy phase.