Recent progress in sustainable and energy-efficient technologies
The iron and steel industry has played an important role in supporting the GDP growth in China. However, iron and steel production is the most energy-intensive Up to now, the average bed depth has increased to about 800 mm in China. Baoshan Iron and Steel Co., Ltd. and Tianjin Tiangang United Special Steel Co., Super-high bed sintering for iron ores: problems ascertainment
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Improvement of Iron Ore Sintering Productivity by
issue. Iron ore sinter is the major raw material for ironmak-ing, which is more cost-effective than pellets and lump iron ore. Iron ore sinter accounts 60% to 80% of the iron ore raw The sintering process is a well-established process in use at integrated steel making plants. It consists of an agglomeration through an oxidizing/reducing fusion Operational and environmental assessment on the use of charcoal in iron
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Target the neglected VOCs emission from iron and steel
The non-target volatile organic compounds (VOCs) emissions from iron and steel industry, especially from the iron ore sinter process, may be an Sinter has been introduced into the composite burden of the COREX ironmaking process in China to lower the material cost, but the proportion is limited due to its poor low-temperature reduction Minerals Free Full-Text Research on the
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Iron Ore Sintering: Quality Indices: Mineral Processing and
Sinter plants process a mixture of iron ore fines, recycled ironmaking products, slag-forming agents and solid fuel (coke) with the finality of obtaining a product The produced coke, sinter, pellet with iron ore smelted in blast furnace to produce hot metal, and blast furnace gas (BF gas) which further is used as fuel. The hot metal is further converted to steel in basic oxygen furnace. The studied iron and steel production plant includes coke oven, sinter plant, limestone kiln, pellet plant, blastInvestigation on mercury flow and emission in integrated primary iron
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Iron ore pellets as a solution to steel—making raw Springer
So far, JSW Steel has used iron ore with 52 % iron content. JSW Steel has had a tough time in the last 2 years, when they were stabilising the 10-Mt steel plant. Their requirement of iron ore is 15 Mt a year. For them, securing such a large quantity is tough. The company has created capacity of 20 Mt at their beneficiation plant, using 52 首先从烧结过程和矿物组成变化两个方面对超高碱度烧结矿成矿机理与质量之间的关系进行研究,发现烧结矿碱度在2.10～2.80范围内,随着碱度的升高,矿物主要黏结相逐渐向铁酸钙系黏结相转变,矿物组成逐渐平稳,而碱度大于2.80后黏结相中玻璃质和裂纹逐渐增 国内超高碱度烧结矿生产实践及发展趋势
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(PDF) The ignored emission of volatile organic compounds from iron ore
The non-target volatile organic compounds (VOCs) emissions from iron and steel industry, especially from the iron ore sinter process, may be an underappreciated index imposing a negative effect onThe huge steel output has made it impossible for the domestic iron ore deposits to meet the demand for iron ores. In fact, a major part of the iron ores consumed rely on imports. Australia, Brazil, Canada, South Africa, etc. are the main iron ore exporters, and the long-term data show that the iron ores imported by China have even exceeded Microstructure and Minerals Evolution of Iron Ore Sinter:
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Iron Ore Sintering SpringerLink
Iron ore sintering is the iron ore powder agglomeration process that changes fine iron ore powder into the lumpy iron-bearing raw material used for blast furnace ironmaking. High-temperature process and addition of alkaline flux will improve metallurgical performance of iron-bearing raw material. Besides, the sintering process will consume theWith the rapid change in iron ore supply and composition, steel mills now have to adjust the composition of ore blends for their sinter plants more frequently than ever before. Hence, test methods of different scale (Lu et al., 2007) have been developed to help the sinter plant evaluate new ore types in order to optimize ore blends. This allowsIron ore sintering ScienceDirect
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State of the Art in Air Pollution Control for Sinter Plants
The limits for emissions to the atmosphere from sinter plants have been tightened in recent years. The current emission limits for Europe and China are summarized in Table 18.1.The best available technique-associated emission levels (BAT-AELs) for air emissions from sinter plants are defined in the commission implementing decision of 28 Being the largest iron and steel producer in the world, China's crude steel production reached 780 million tons in 2013, 808.37 million tons in 2016 and 831.70 million tons in 2017 (Fernández-González et al., 2017). (PCDD/F) emissions from a real-scale iron ore sinter plant by adjusting its sinter raw mix. J. Clean. Prod. (2016) DThe ignored emission of volatile organic compounds from iron ore sinter
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Influence of Sinter Parameters on CO Emission in Iron Ore
Carbon monoxide is the major hazardous component in flue gas exhausting from the iron ore sintering. This study aims to reduce the CO emission by changing the sinter parameters by sintering pot tests; specifically, the sinter quality, CO concentration, and total emission in sintering flue gas were analyzed in detail. The sinter Iron ore sinter plants are energy-intensive 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 Recent progress in sustainable and energy-efficient technologies
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Sintering emissions and mitigation technologies
Key emissions from sinter plants. Iron ore sintering is a material preparation process employed world-wide 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 theIn addition to iron ore, the sintering mixture is also composed of solid fuel (coke), slag-forming elements and fluxes (especially limestone, quick-lime and dolomite), returned fines (sinter with granulometry < 5 mm), and steel-making residues (like blast furnace, sinter and coke plant dust) (Lau et al., 2016; Fernández-González et al., 2017a).Trace elements emission in iron ore sintering: A review
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The ignored emission of volatile organic compounds from iron ore sinter
Introduction. Being the largest iron and steel producer in the world, China's crude steel production reached 780 million tons in 2013, 808.37 million tons in 2016 and 831.70 million tons in 2017 (Fernández-González et al., 2017).Because steel is one of the basic materials used in construction and industry, under the guidance of current national The good sinter parameters with the lower CO emission are 2.8% carbon content and 7.5% water in the sintering mixture. A higher coke breeze to coal breeze ratio, or only coke breeze fuel in the(PDF) Influence of Sinter Parameters on CO Emission in Iron Ore
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(PDF) Thermodynamic Analysis of Iron Ore Sintering
For energy saving and emission reduction in the iron and steel industry, the metallurgical performance of iron ore sinter, including reduction degradation index (RDI), reduction index (RI), andThe undersize material from screening is recycled back to the process. Sinter plants recycle iron ore fines from the raw material storage and handling area, waste iron oxides, and pollution control systems. Iron ore may also be processed in on-site sinter plants. The temperature profile and the reactions zones during sintering are shown in FigSintering: Most Efficient Technologies for Greenhouse
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Energies Free Full-Text Thermodynamic Analysis of Iron Ore
Sinter is the first process in the whole ironmaking industry, which plays an important role in the iron and steel production process [], and its energy consumption accounts for a large proportion of the entire ironmaking industry, reaching about 10%, which is the second largest energy-consuming process in the entire steel industry.The main plant, ArcelorMittal Ghent plant in Belgium, as well as China Ben Steel 560m 2 sintering machine, Baosteel sintering plant have adopted intensive mixer 56) . The horizontal high-shear granulator also(PDF) Iron Ore Granulation for Sinter Production:
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Reductants in iron ore sintering: A critical review
Consumption of fuel plays a vital role in sinter making. Specific fuel consumption alters from plant to plant, and reductant use varies approximately from 45 to 60 kg/ ton of gross sinter. Similarly, the particular fuel consumption attributed to around 17–20 % of the total cost comes from the sintering process, as shown in Fig. 1.
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