高炉钒钛球团矿炉料结构试验
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国家自然科学基金资助项目(50774107)


Experiment study of adding VTi pellet in burden structure of blast furnace
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    摘要:

    针对水钢现有原料条件,通过对单一矿石冶金性能的测试,研究了水钢烧结矿搭配钒钛球团矿的合理性;在烧结矿配比不变的条件下,用进口块矿对钒钛球团矿配比的加入进行调节,研究了炉料结构的还原性,低温还原粉化性和荷重软化及高温熔滴性能的变化规律。试验结果表明,水钢烧结矿还原度(RI)达到了90.68%,钒钛球团矿的加入有利于综合炉料低温还原粉化性能RDI和软熔性能的改善,其中当钒钛球团配入量为20%时,炉料结构软化开始温度为1 147 ℃,软化区间156 ℃,滴落温度1 349 ℃,最大压差2 223 Pa,透气

    Abstract:

    In allusion to the existing material conditions of blast furnace in Shuicheng I﹠S Corporation, rationality of sinter with VTi pellets is studied through metallurgical performance tests of single ore. Regularity for change of reducibility, reduction degradation index, melting and dropping index changes of burden structure are researched, at increased VTi pellets in the same proportion of sinters and different proportion of imported lump ores. The results show that sinter RI reaches 90.68%, integrated charge RDI and soft melting index are improved by adding vanadiumtitanium pellets. The charge structure is the best when VTi pellets ratio at 20%, which softening starting temperature is 1 147 ℃, softening range is 156℃, dripping temperature at is 1 349 ℃, maximum pressure is 2 223 Pa and has a good permeability.

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杜云贵,贺媛媛,郑惠敏,刘清才,陈黔湘,敖万忠.高炉钒钛球团矿炉料结构试验[J].重庆大学学报,2010,33(3):114-118.

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  • 收稿日期:2009-10-25
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