Formation mechanism and emission reduction of PCDD/Fs in iron ore sintering
WEBAug 1, 2014 · Iron ore sintering is an important industrial source of dioxin (PCDD/Fs), and the mechanism of generating dioxins in sintering process is very complex.
WEBAug 1, 2014 · Iron ore sintering is an important industrial source of dioxin (PCDD/Fs), and the mechanism of generating dioxins in sintering process is very complex.
WEBFeb 28, 2022 · The present work proposes a novel process to sinter porous iron ore (porosity ~23–24%) with enhanced productivity and quality. The iron ore is preprocessed in the presence of calcined lime for the temporary closure of pores, which further prevents water absorption during the granulation process in drum in the presence of water. The .
WEBDec 28, 2015 · The first machine that sintered DwightLloydprocess iron ore was built in 1910 in the United States. The first DwightLloyd sintering plant in Germany was built in1917. Though a large numbers of improvements have been made since then in the machine mechanical design and in the process of iron ore sintering, still the basic .
WEBJul 1, 2018 · According to the dioxin emission report (Lv et al., 2008), the sintering process is the main emission source of dioxin in the iron and steel estimated distribution and emissions of dioxin in different areas of China are shown in Fig. ore sintering process is the second to the municipal waste incinerator toxic pollutants .
WEBFeb 1, 2024 · A device for loosening sintering bed was applied for the sintering machine. Also, the iron ore matching structure was adjusted according to the granulation bonding property index of iron ores. ... Wang YZ, Zhang JL, Liu ZJ et al (2017) Recent advances and research status in energy conservation of iron ore sintering in China. JOM 69(11)
WEBFurther the simulation, there are obtained the timevariations of the optimal speed for the sintering machine at different distributions of iron ore#39;s temperatures on the sintering band. ...,,, 2004, pp. 1120. [7] Ramos, Numerical Model of the Iron Ore Sintering Process Directly Describing the Agglomeration Phenomenon of ...
WEBOct 15, 2023 · Abstract. In iron making process, sintering of iron ore fines is an integral step to utilize not only the ore fines but also to introduce a part of flux (limestone and dolomite) along with the sinter in blast furnace burden. In this way, the productivity of the furnace considerably improves. In this paper, some fundamental aspects such as the ...
WEBAug 16, 2023 · The iron ore sintering, as an essential raw material treatment process of blast furnace, mainly uses coke or anthracite as a heat source and emit a large amount of greenhouse gas (Annual Conference on Sintering Pelletizing Technology, 2022), which is not consistent with the current environmental protection requirements.
WEBJan 1, 2014 · Due to technological constraints, most sintering machines in iron ore sintering plants have an effective area of 360 m 2. This is the type considered in this study. The sintering process consists of proportioning, mixing, feeding, segregation, ignition, breaking, cooling, and screening.
WEBJan 19, 2018 · For a long time, the research of ore blending based on high temperature properties of iron ore have been commonly conducted [1, 2].However, the assimilation properties and flow properties of iron ore are mostly evaluated by the minimum assimilation temperature [] and the liquidity index [], which was seldom considered the sintering .
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 .
WEBOct 26, 2023 · Amongst various processes used in agglomeration, sintering and pelletization are widely used in the iron ore industries. About 70% of the blast furnace feed is reporting from the sintering processes. The objective of iron ore agglomeration is to generate a suitable product of granules in terms of thermal, mechanical, physical, and .
WEBNov 21, 2008 · Further the simulation, there are obtained the timevariations of the optimal speed for the sintering machine at different distributions of iron ore's temperatures on the sintering band. View full ...
WEBApr 30, 2015 · Iron ore sintering is used all over the world to prepare agglomerates for the ironmaking blast furnace (Chen et al., 2016;Abreu et al., 2015; Zhao et al., 2015). It consists of an agglomeration ...
WEBMay 1, 2013 · The sintering basic characteristics of five kinds of iron ore and blending iron ore in Handan Iron and Steel Co. Ltd. were determined. The results show that the effect of Brazil coarse ore on the ...
WEBDec 1, 2018 · Thermal state of iron ore sintering in iron and steel production cannot be revealed straightforward, which is unfavorable for field operations. ... The setting value of TRP, BRP and BTP of the sintering machine was 28 m, 33 m and 39 m respectively, according to the data analysis of exhaust gas temperature in stable sintering state. The .
WEBAug 19, 2020 · Figure shows the main parts of an iron ore sintering plant (Dwight–Lloyd machine). Despite at first instance the agglomeration of ores has imposed as a process required in the iron extractive metallurgy, this process has changed with the time until becoming in the main instrument to recycle in both the ironmaking and the .
WEBMay 2, 2017 · Sinter plants process a mixture of iron ore fines, recycled ironmaking products, slagforming agents and solid fuel (coke) with the finality of obtaining a product with the suitable ...
WEBJul 19, 2019 · The coke breeze supplies the necessary process heat. Iron ore sintering is the second most energyconsuming process in iron marking, and the main energy consumption comes from the combustion of carbon (Hu et al. 2019). Coke breeze is intimately mixed with moistened ore fines, limestone/dolomite, and industrial wastes like .
WEBDec 20, 2017 · Sintering and pelletization are the most important agglomeration technologies, in this way, in the EU27, 14 countries operate 34 iron ore sinter plants with 63 iron ore sinter strands, producing in the first decade of the twentyfirst century 130 million tons of sinter annually, on its behalf, 6 pelletization plants produce 27 million tons .