The iron ore powder used in the experiments was obtained from the raw material site of a steel company in southwest China. For B 2 O 3 an analytical reagent (≥98%) was used. The chemical composition of the raw materials is reported in Table 1 and Table 2. The raw materials are mixed powder (HVTM) composed of hematite powder and vanadium ...
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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.
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The quality control process for sintered ore is cumbersome and time and moneyconsuming. When the assay results come out and the ratios are found to be faulty, the ratios cannot be changed in time, which will produce sintered ore of substandard quality, resulting in a waste of resources and environmental pollution. For the problem of lagging sinter detection results, Long ShortTerm Memory ...
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During sintering process, iron ore fines, recycled ironbearing materials (dusts and slags), fluxes (dolomite, limestone, etc.), and fossil fuels, such as coke breeze and anthracite, are thoroughly mixed and agglomerated into lumplike sinter under about 1300 °C provided by the combustion of fossil fuels [10].
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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.
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Iron ore granulation has been introduced into the steel production process since iron ore agglomeration was proven to have better metallurgical properties and more efficient iron production than natural iron ore 6,7). Both sintering and pelletizing contain iron ore granulation process, with the former preparing iron ore, fuel, flux, water and ...
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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 ...
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Iron ore mineral: The gratekiln is best suited for magnetite and magnetite/hematite mixtures, while the straight grate is suitable for all types of feed ... The pelletizing process involves the preparation of raw materials; the proportioning and mixing of raw materials; the formation, preheating, and firing of green balls; and the cooling of ...
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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 ...
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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 ...
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Sintering emissions and their mitigation technologies. L. Lu, ... X. Li, in Iron Ore, 2015. Key gaseous emissions from sinter plants. 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 ...
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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 ...
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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 ...
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This chapter focuses on the application of the sintering process as an important raw material preparation step for the production of hot metal in blast furnaces in integrated steel mills, which account for about 70% of the world's steel production annually. Sintering process for iron ore fines
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The best sintering maximum temperature is between 1300 and 1400 °C, where sinter ore with high quality can be obtained. ... The sintering process of iron ore accounts for about 10, 40 and 70% of ...
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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 ...
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Material Selection for Sintering Process Raw materials like iron ore nes, limestone, dolomite, coke breeze, blast furnace return nes, sinter return nes, micro pellets, coke breeze, and calcined lime were used for the laboratory pot grate sintering studies. A total of 5 pot trials were planned to vary the pellet nes from 0 to 50% in the
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Sintering is a process that consists in the thermal agglomeration of a mixture of fines that comprise iron ore, recycled iron and steelmaking products, slagforming ... Iron ore sintering: Raw materials and granulation, where the concentration techniques used in the case of the iron minerals are described, as well as the current demand of iron ...
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The iron and steel industry has made an important contribution to China's economic development, and sinter accounts for 7080% 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 intelligent algorithm as the core is studied.
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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.
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A material supplier from Belgium would like to produce limestone powder for his custome...
India is rich in various mineral resources and it is an important mineral processing market
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