Sintering raw materials include iron ore powder (rich ore powder, concentrate powder), flux (limestone, dolomite, quicklime, etc.), fuel (coke powder and anthracite), additives (roll scale and some recycled materials), return ore in sintering process, and return ore below ironmaking trough. Process Flow
Limonite (brown iron ore) used as a raw material for sintering is inexpensive, but problems include the fact that this ore combines strongly with water and has a coarse particle size. These properties have a serious impact on productivity in the sintering process (Lu and Ishiyama 2016). By solving these problems, this device makes it possible ...
The process of sintering is basically a pretreatment 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.). The sintering technology was originally developed for the purpose of utilizing ...
I. RuizBustinza of Mining and Energy Engineers (UPM) J. Mochón Carmen GonzálezGasca European University of Madrid Abstract and Figures Sintering is an agglomeration process that fuses...
The coke combustion rate in an iron ore sintering process is one of the most important determining factors of quality and productivity. Biomass carbon material is considered to be a coke substitute with a lower CO2 emission in the sintering process. The purpose of this study was to investigate the combustion rate of a biomass carbon material and to use a sintering simulation model to calculate ...
To reduce the raw material cost of the blast furnace ironmaking system and realize the collaborative optimization of the whole process from iron ore procurement to blast furnace ironmaking, He et al. [15] developed a whole system and whole process optimized sintering batching platform for blast furnace ironmaking.
Raw material. Iron ore blending, fuels, and fluxes (including dolomite, limestone, and quicklime) were utilized to produce sinter with total Fe (TFe) %, SiO 2 %, basicity (R = CaO/SiO 2), and MgO %.The chemical compositions of raw materials and their mass fractions are given in Table proximate analysis of coke breeze and chemical composition of its ash are shown in Table 2.
Sinter Plants, that produce iron ore sinter, are important units in an integrated steel plant. They face several operational challenges due to frequent changes in input raw materials, the inability to instrument key equipment in the plant, and the absence of realtime sinter quality measurement. To address these challenges, Virtual Sinter®, a digital twin of the integrated sinter plant is ...
Coke breeze is the main heat source in sintering process. Its combustion yields enough amounts of heat which melts the sinter mix. One of the factors that significantly affect the course of coke breeze combustion is its grain size [1,2,3].It is known that finegrained coke reduces permeability of the sinter mix and the use of coke breeze with particle size below 1 mm is avoided on the ...
Blast furnace ironmaking has the advantages of a good economic index, simple process, large output, and high production efficiency, which represents the major hot metalmaking process in the world [1,2].With the largescale development of modern blast furnaces, iron ore resources are becoming increasingly scarce, which makes the raw material structure of sintering plants fluctuate greatly, and ...
An efficient sintering process was proposed based on the autocatalytic denitrification of the sintered ore. The catalytic denitrification of sintered ore, the effect of doublelayer ignition sintering process on the emission reduction in nitrogen oxides, and the impact on the quality of sintered ore were studied. The results showed that the catalyzed reduction of NO with sinter ore as a ...
The effect of the substitution of conventional coke breeze fuel used in sintering on final sinter quality and emission was examined. With regard to productivity, fuel consumption, and properties ...
The sintering process converts finesized raw materials, including iron ore, coke breeze, limestone, mill scale, and flue dust, into an agglomerated product, sinter, of suitable size for charging into the blast furnace.
The iron ore in the sintering dust was mainly magnetite, a small amount of hematite and gangue. Moreover, a small amount of quicklime also existed in the sintering dust due to using it as a solvent for the sintering process (Wu et al., 2022b). The peak intensity of metallic iron rose with the temperature, while peaks of magnetite and hematite ...
The sintering process is shown in Fig. 3. In sintering process, the iron ore, flux, fuel and auxiliary materials are fed into the sintering machine after batching and mixing. Their dosages per ton sinter are m ore, m flux, m fuel and m other, respectively. The energy values of them are e ore, e flux, e fuel and e other, respectively. After ...
In actual sinter production, batching is a complex metallurgical and mathematical problem. Aiming at the problem of the precising batching of iron ore in the process of sintering batching, an automatic batching algorithm based on a Cartesian product to batch sinter was proposed for the first time. When the algorithm is applied to the sintering batching process, a complete batching scheme can ...
Sinter is the main ironcontaining raw material for blast furnaces. As iron ore resources are gradually depleted, the types of raw materials for sinter are complicated, so their chemical composition often changes. ... Importance of textural information in mathematical modelling of iron ore fines sintering performance. Miner Process Extr Metall ...
In the sintering process, iron ores are usually blended and mixed with fluxing materials,, limestone and burnt lime, and fuels (socalled agglomeration agents),, coke, anthracite, and some recycle dusts.
According to the Environmental Protection Agency, the sintering process converts finesized raw materials, including iron ore, coke breeze, limestone, mill scale, and flue dust, into an agglomerated product, sinter, of suitable size for charging into the blast furnace. It outlines the process as follows:
Summary. In this chapter, we learned that three main ferrous burden materials are used in BF operation; lump ore, sinter, and pellets. The types of iron ores used to produce these three ferrous charge materials and the related production methods were described. The various analysis methods used to determine the quality of the BF charge ...
Iron ore is the source of primary iron for the world's iron and steel industries. It is therefore essential for the production of steel, which in turn is essential to maintain a strong industrial base. Almost all (98%) iron ore is used in steelmaking. Iron ore is mined in about 50 countries. The seven largest of these producing countries ...
Sinter is created by mixing iron ore concentrate with several additives such as limestone and silica to control the chemistry and then igniting it at 1200°C in a continuous beltfed furnace. As noted in this EPA document: The sintering process converts finesized raw materials, including iron ore, coke breeze, limestone, mill scale, and flue ...
2 Citations Abstract The raw materials for an integrated steelworks can be classified into four categories, which are iron ores, fluxes, fuels, and reverts. The characteristics of these raw materials strongly affect the metallurgical properties of iron ore sinter and sinter plant performance.
The article presents results of the research on the use of chars produced during pyrolysis of residual biomass as a substitutional fuel in the iron ore sintering process. Such an approach allows to implement circular economy and industrial symbiosis to the iron and steel branches. The effect of the substitution of conventional coke breeze fuel used in sintering on final sinter quality and ...
1 Introduction The sinter mix contains various materials such as iron ore, flux, solid fuel, plant return sinter fines, plant generated wastes, etc., where the majority of it is iron ore.
The chemical compositions of raw material for minisintering are summarized in ... as well as the platesheettype. The corrosion structure of magnetite and the columnaraciculartype is the best microstructure with the highest strength. ... and Melting characteristics of iron ore fine during sintering process, J. Iron Steel ...
The iron ore sintering process is the process of mixing powdered iron ore, fuels, fluxes and recycling materials for the sintering process according to certain composition, mixing with water and igniting to sinter the raw materials into blocks in an incomplete melting state.
I. RuizBustinza of Mining and Energy Engineers (UPM) J. Mochón Carmen GonzálezGasca European University of Madrid Abstract and Figures Sintering is a thermal agglomeration process that...
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, slagforming 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 blast furnace.
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