摘要
针对越钢烧结矿成品率低、强度差的问题，进行了大幅度提高烧结矿ＭｇＯ含量的研究。结果证明，在高硅（ＳｉＯ２１５％），低铁（ＴＦｅ４９．０％），全粉矿烧结条件下，保持烧结矿ＣａＯ／ＳｉＯ２＝１．６左右，（ＣａＯ＋ＭｇＯ）／ＳｉＯ２ｇ＝２．０左右，ＭｇＯ＝５．５％～９．０％，可克服风化现象，显著提高烧结矿质量，获得强度高（转鼓指数７５％以上），还原性好（ＦｅＯ８％），成品率达到８０％的高镁优质烧结矿。
The experimental study of increasing the MgO content to a large extent was conducted to solve those problems in the sinter production in Yuezhou I & S Works, such as low product yield ,poor sinter strength. The results have shown that during the sintering of all ore fines with high SiO2(15%) and low TFe(49. 0%) contents the sinter weathering phenomenon could be eliminated and the sinter quality improved obviously, if the followiong conditions were kept: CaO/SiO2 = 1. 6, (CaO+ MgO)/SiO2=2. 0 . MgO= 5. 5%￣ 9. 0%. As a result. high MgO sinter with high strength (tumbler index above 75%) and high reducibility(FeO= 8%) can be produced with the yield as high as 80%.
出处
《烧结球团》
北大核心
1995年第1期16-20,共5页
Sintering and Pelletizing
关键词
铁矿
烧结
含硅量
添加剂
氧化镁
iron ore sintering
SiO_2 content
addition
MgO
