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铁矿粉液相流动性的主要液相生成特征因素解析

吴胜利 苏博 齐渊洪 李园 杜斌斌

吴胜利, 苏博, 齐渊洪, 李园, 杜斌斌. 铁矿粉液相流动性的主要液相生成特征因素解析[J]. 工程科学学报, 2018, 40(3): 321-329. doi: 10.13374/j.issn2095-9389.2018.03.008
引用本文: 吴胜利, 苏博, 齐渊洪, 李园, 杜斌斌. 铁矿粉液相流动性的主要液相生成特征因素解析[J]. 工程科学学报, 2018, 40(3): 321-329. doi: 10.13374/j.issn2095-9389.2018.03.008
WU Sheng-li, SU Bo, QI Yuan-hong, LI Yuan, DU Bin-bin. Major melt formation characteristic factor analysis of iron ore liquid phase fluidity during the sintering process[J]. Chinese Journal of Engineering, 2018, 40(3): 321-329. doi: 10.13374/j.issn2095-9389.2018.03.008
Citation: WU Sheng-li, SU Bo, QI Yuan-hong, LI Yuan, DU Bin-bin. Major melt formation characteristic factor analysis of iron ore liquid phase fluidity during the sintering process[J]. Chinese Journal of Engineering, 2018, 40(3): 321-329. doi: 10.13374/j.issn2095-9389.2018.03.008

铁矿粉液相流动性的主要液相生成特征因素解析

doi: 10.13374/j.issn2095-9389.2018.03.008
详细信息
  • 中图分类号: TF046.4

Major melt formation characteristic factor analysis of iron ore liquid phase fluidity during the sintering process

  • 摘要: 烧结矿是我国高炉炼铁的主要原料,烧结矿质量将直接影响高炉冶炼及炼铁工序的经济技术指标.因此,基于铁矿粉的高温特性进行优化配矿从而改善烧结矿的产质量对于炼铁工序节能增效具有十分重要的现实意义.铁矿粉的液相流动性是非常重要的烧结高温特性指标,适宜的液相流动性可以使烧结矿获得较高的固结强度.本文模拟实际烧结黏附粉层中铁矿粉颗粒与钙质熔剂质点的接触状态,采用FastSage热力学计算和微型烧结可视化试验方法研究了固定CaO配比条件下铁矿粉的液相流动性及其主要的热力学液相生成特征影响因素.研究结果表明,采用固定CaO配比与固定碱度的熔剂配加方式下,铁矿粉的液相流动性规律明显不同.铁矿粉的液相生成量是影响其液相流动性的最主要液相生成特征因素,液相生成量越多则铁矿粉的液相流动性指数越大.铁矿粉液相流动性的配合性机制是基于其液相生成量的线性叠加原则.脉石矿物含量将在一定程度上影响铁矿粉的液相流动性,随着SiO2含量的升高铁矿粉的液相生成量减少,从而导致液相流动性指数显著降低;而Al2O3含量增加,液相流动性指数略有升高.
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出版历程
  • 收稿日期:  2017-07-30

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