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气基竖炉直接还原球团技术的发展
引用本文:胡俊鸽,周文涛,郭艳玲,赵小燕. 气基竖炉直接还原球团技术的发展[J]. 烧结球团, 2012, 37(2): 40-44,57
作者姓名:胡俊鸽  周文涛  郭艳玲  赵小燕
作者单位:鞍钢股份公司技术中心,辽宁鞍山,114009
摘    要:论述了球团矿质量对气基竖炉直接还原生产和DRI质量的影响以及DRI质量对炼钢生产的影响.介绍了提高气基竖炉直接还原工艺用球团矿质量的技术,包括降低Si02含量、降低粘结趋势、提高还原性和提高大粒度(12.5~16.0 mm)球团比率等措施及其发展.指出若把低TFe、高脉石含量的高炉用球团矿直接用于气基直接还原竖炉,至少应该采用球团涂层技术;如果球团矿脉石含量较高,需要借助工业试验进行综合分析以确定其经济性.

关 键 词:气基竖炉  直接还原球团  球团技术  球团矿质量  DRI质量

Development of Gas-based Shaft Furnace Direct Reduction Pellet Technology
HU Jun-ge , ZHOU Wen-tao , GUO Yan-ling , ZHAO Xiao-yan. Development of Gas-based Shaft Furnace Direct Reduction Pellet Technology[J]. Sintering and Pelletizing, 2012, 37(2): 40-44,57
Authors:HU Jun-ge    ZHOU Wen-tao    GUO Yan-ling    ZHAO Xiao-yan
Affiliation:(Technology Center of Angang Steel Company Ltd,Anshan 114009,Liaoning)
Abstract:The effect of pellet quality on gas-based direct reduction shaft production and DRI quality and the effect of DRI quality on steelmaking production were discussed.The technologies of improving gas-based direct reduction pellet quality were also presented,which include measures such as reducing SiO2 content,decreasing pellet sticking trend,increasing reducibility and proportion of pellet with size(12.5~16.0 mm) etc.It was pointed out that,if blast furnace pellet with low TFe and high langue are directly used in gas-based direct reduction shaft,pellet coating techniques should be applied at least,if langue content of pellet is higher,comprehensive analysis should be carried out through industrial test to ascertain its economy.
Keywords:gas-based shaft furnace  direct reduction pellet  pelletizing technology  pellet quality  DRI quality
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