WEBApr 14, 2024 · As metallurgical production progresses, iron ore fines with high quality are becoming scarcer, causing an increase in gangue content like Al 2 O 3 and SiO 2 in raw materials for the sintering process [9,10,11,12,13,14,15,16]. So, attention is being paid to the effect of gangue on the formation mechanism of complex calcium ferrite (SFCA) as a ...
WEBJun 4, 2024 · The iron oxide (FeO) content had a significant impact on both the metallurgical properties of sintered ores and the economic indiors of the sintering process. Precisely predicting FeO content possessed substantial potential for enhancing the quality of sintered ore and optimizing the sintering process. A multimodel .
WEBMay 1, 2017 · Iron ore sintering is a pretreatment technology to convert iron ore fines into porous and permeable sinters which are the most important burden materials fo r blast furnace. The main process is ...
WEBAug 1, 2018 · Sintering is a raw material preparation process of blast furnace ironmaking. However, its high energy consumption and pollutant discharge have seriously impeded the development of iron and steel ...
WEBFeb 27, 2023 · The quasiparticle samples in the combustion process were quenched with liquid nitrogen, and the composition changes in the quasiparticle combustion process were analyzed. The results show that the excessive mass loss is caused by the reduction of iron ore in the sintering atmosphere, which also means heat loss.
WEBJun 6, 2021 · ABSTRACT. Red mud (RM), the byproduct generated during the alumina extraction process, is considered a valuable second. ary raw material, since iron (20–54%) represents its major constituent ...
WEBFeb 28, 2022 · The iron ore mixture for all the stages was the same and consisted of iron ore concentrate – %, sintering ore – %, lime – % and sintering additives (sludge, dust, scale) – %.
WEBFeb 13, 2023 · The iron and steel industry has made an important contribution to China's economic development, and sinter accounts for 70–80% of the blast furnace feed charge. However, the average grade of domestic iron ore is low, and imported iron ore is easily affected by transportation and price. The intelligent ore blending model with an .
WEBNov 15, 2023 · During the iron ore sintering process, there is a universally known feature of uneven heat distribution in the sintering bed [26], [27]. The sintered material is mixed, granulated, and then filled into the sinter machine with a uniform fuel distribution in conventional sintering processes.
WEBApr 1, 2017 · Fig. 1 shows the schematic diagram of a typical sintermaking plant. Iron ore sintering process is an important thermaltreatment stage to convert finegrained ironbearing materials (<8 mm) into lumpish sinter, which characterizes high mechanical strength, excellent metallurgical properties (Remus et al., 2012), and can meet the gas .
WEBSep 3, 2016 · The raw materials for an integrated steelworks can be classified into four egories, 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. An optimal ore blend design is therefore essential to produce low cost ...
WEBJan 15, 2023 · Moreover, the conventional iron making unit, blast furnace requires the raw material in the form of iron oxide with a size range of 10–120 mm. Sintering is the oldest agglomerate thermal process using iron ore mineral fines of –8 mm, along with the reductant, fluxes, and other byproducts of the iron and steel industry operated ...
WEBApr 29, 2024 · The preparation process of metallized pellets is shown in Fig. Fig. 2, a total of 200 g raw materials were weighed and mixed for 2 h, each wellmixed samples were weighed, and each ...
WEBDec 29, 2023 · Raw Materials. The raw materials used in this paper were provided by a stainlesssteel manufacturer in China. The main chemical composition and burn loss of the raw materials are shown in Table grades of the iron and Ni of the limonitic laterite ore were % and %, respectively, and the loss on ignition was %, .
WEBApr 2, 2010 · 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 ...
WEBOct 15, 2023 · In case of chromite, the temperature required for sintering is about 200 0 C more than that required for iron ore sintering. The process conditions for manganese ore sintering are almost similar to that for iron ore. The author has actively contributed to projects for setting up of batch type (capacity 15000 tpa) sinter plants at industry site.
WEBSinter is the primary feed material for making iron in a blast furnace. 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. Sinter feed composition control is important because the various sinter feed ...
WEBMar 20, 2020 · In the iron ore sintering process, it is desirable to maximize the productivity and quality of sinter while minimizing the fuel consumption for any given raw material (iron ore, flux and solid fuel) quality. However, given the complexity of the sintering process and the large number of manipulated variables, it is not practical for .
WEBJan 19, 2018 · The evaluation model of iron ore properties was established based on the high temperature characteristic numbers with employing fuzzy mathematics. Then, with the constraint of sinter properties and the raw materials, the ore blending model was built, whose target was to obtain the lowest cost and the best sinter properties.
WEBMar 1, 2020 · Therefore, iron ore sintering has become particularly important. Sintering is a thermal agglomeration process, and its main raw materials are iron ore, returning sinter ore, fluxes, and coke (FernándezGonzález, RuizBustinza, Mochón, GonzálezGasca, Verdeja, 2017). The high energy consumption and serious pollution associated with the ...
WEBOct 1, 2020 · Iron ore sinter plants are energyintensive components of integrated iron and steel production (see Table 1), where the iron ore fines (<5 mm) are converted into larger (>5 mm) lump sinter cakes with greater gas permeability, which are the most important burden materials for iron making in blast furnaces (BFs) [7].The main process is .
WEBJul 5, 2018 · Iron ore sintering is an important channel to utilize Cbearing dust, but the poor surface activity worsens the permeability of the green bed and reduces the yield and quality indexes of sinters. Thus, the Cbearing dust dosage should be within 5% during iron ore sintering process (Gan et al., 2018).
WEBJan 1, 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 shown in Figure, iron ore sintering .
WEBDec 6, 2022 · He, H. et al. Emission characteristics of dioxins during iron ore Cosintering with municipal solid waste incinerator fly ash in a sintering pot. Chemosphere 287 (Pt 1), 131884 (2022).
WEBThe sintering plant process comprises several key components. First, we have the raw material handling component, which stores and discharges the materials transferred from the material yard. Second, the sinter machine that produces the actual sinter ore. The third part is the crushing facility that crushes and screens the iron ore and conveys it.
WEBJan 2, 2017 · ABSTRACT Sintering is an agglomeration process that fuses iron ore fines, fluxes, recycled products, slagforming elements and coke. The purpose of sintering is to obtain a product with suitable composition, quality and granulometry to be used as burden material in the blast furnace. This process is widely studied and researched in the iron .
WEBJan 18, 2023 · 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 miniaturesintering experiments and theoretical firstprinciples calculations, this paper analyzes in detail the influencing mechanism of Zn on .
WEBJul 15, 2022 · Iron ore sintering is an agglomeration process of iron ore fines, fluxes, fossil fuel (coke and coal), and some ironbearing waste materials in the ironmaking and steelmaking industry . Sinter is one of the main raw materials used in a blast furnace (BF) accounting for more than 70% ferrous burden of BF in China [ 2 ].
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