CAJ | 학술논문

为探究新西兰海砂矿用于鞍钢烧结生产的可行性，对比了新西兰海砂矿与鞍钢常用粉矿的烧结基础特性，同时以鞍钢鲅鱼圈分公司烧结生产条件为基础，在实验室研究了配加不同比例新西兰海砂矿对烧结指标、烧结矿性能以及高炉渣化学成分的影响。结果表明，随着新西兰海砂矿配比增加，烧结矿转鼓强度与成品率均下降，烧结矿品位与SiO2含量降低，Al2 O3与TiO2含量增加，还原粉化指标与还原度变差，分析计算出高炉渣中TiO2含量会上升。相比于其它常用粉矿，新西兰海砂矿烧结属性较差，在鲅鱼圈烧结生产条件下，综合考虑烧结指标及高炉渣流动性，建议新西兰海砂矿配比不宜超过10％。
위탐구신서란해사광용우안강소결생산적가행성，대비료신서란해사광여안강상용분광적소결기출특성，동시이안강발어권분공사소결생산조건위기출，재실험실연구료배가불동비례신서란해사광대소결지표、소결광성능이급고로사화학성분적영향。결과표명，수착신서란해사광배비증가，소결광전고강도여성품솔균하강，소결광품위여SiO2함량강저，Al2 O3여TiO2함량증가，환원분화지표여환원도변차，분석계산출고로사중TiO2함량회상승。상비우기타상용분광，신서란해사광소결속성교차，재발어권소결생산조건하，종합고필소결지표급고로사류동성，건의신서란해사광배비불의초과10％。
In order to explore the feasibility of using New Zealand′s iron sands in Ansteel′s sintering production process, the basic sintering characteristics of New Zealand′s iron sands was compared with traditional powdered ore used in Ansteel′s sintering process. Different proportioning of New Zealand′s iron sands were prepared in the lab according to the production condition of Bayuquan Branch Company in Angang Steel Co Ltd, and the influences of each proportioning on the sintering indexes, sinter properties and chemical compositions of blast furnace slag were investigated through tests. The results showed that increasing the proportioning of New Zealand′s iron sands in the sintering process could result in a fall in the tumble index and yield, a decrease in sinter grade and SiO2 content but an increase in content of Al2 O3 and TiO2 , bringing in the lower RDI and RI. The analysis and calculation indicated an increased TiO2 content in blast furnace slag. Compared with other kinds of powdered ore, New Zealand′s iron sands is worse in terms of sintering properties. With the sintering indexes and flow characteristics of slag taken into consideration, combined with the production condition in Bayuquan Branch, it is suggested the proportion of New Zealand′s iron sands be less than 10%.