生物质燃料用于铁矿烧结的研究进展
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雷玉办 (1988—),男,副教授,从事冶金新材料方面的研究工作。

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TF053;TF046.4

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广西高校中青年教师科研基础能力提升项目 (2022KY1434)


Research progress on use of biomass fuels for iron ore sintering
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    摘要:

    生物质燃料由于来源广泛、储量巨大且具有高发热值、高纯度、低成本的优势而具有良好的应用前景,其应用于烧结生产也是钢铁行业低碳绿色高质量发展的重要途径之一。本文从原料制粒、烧结过程、烟气减排三个方面对生物质燃料在铁矿烧结工艺中的应用进行系统性的归纳与分析。在原料制粒方面,生物质燃料相较于焦粉和无烟煤,在烧结生产时需要配入更大的水分,根据生物质燃料的种类该水分配比可能需要增加 1%~5%。在烧结过程方面,受限于燃烧特性,生物质燃料替代焦粉的比例不宜过高,一般为 10%~40%,进一步提高该配比则会出现烧结矿成品率和转鼓指数、烧结机利用系数的显著降低。在烟气减排方面,生物质燃料在降低烧结烟气中 CO、NOx、SOx、粉尘和二噁英等有害污染物排放量方面作用显著。对于大规模工业化应用,仍需继续加深理论与试验探索,进一步提高生物质燃料的可获得性,统筹生物质燃料回收加工处理的配套产业,并加大包括投资鼓励等政策支持。

    Abstract:

    Biomass fuel has a good application prospect due to such advantages as wide sources, huge reserves, high calorific value, high purity and low cost, and its application in sintering production is also one of the important ways for low-carbon, green and high-quality development of the iron and steel industry. The application of biomass fuel during the iron ore sintering process is systematically summarized and analyzed from such three aspects as raw material granulation, sintering process and fume emission reduction. In terms of raw material granulation, compared with breeze and anthracite, biomass fuel needs to be mixed with greater moisture mass fraction during sintering production, and the moisture distribution ratio may need to be increased by 1%~5% according to the type of biomass fuel. In terms of sintering process, limited by combustion characteristics, the proportion of biomass fuel replacing breeze should not be too high, generally 10%~40% and further increasing the ratio will lead to a significant reduction in the sinter yield and drum index and sintering machine utilization coefficient. In terms of fume emission reduction, biomass fuel plays a significant role in reducing the emission of harmful pollutants such as CO, NOx, SOx, dust and dioxin in sintering fume. For large-scale industrial applications, it is still necessary to continue to deepen theoretical and experimental exploration, further improve the availability of biomass fuel, coordinate the supporting industries of biomass fuel recycling, processing and treatment, and increase policy support, including investment incentives.

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雷玉办,王 岩,李雪妹,秦 臻,石明芳.生物质燃料用于铁矿烧结的研究进展[J].烧结球团,2024,(1):18-26

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  • 在线发布日期: 2026-08-20
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