摘要
试验研究表明,铁矿石烧结过程中铁酸钙生成速度主要由反应温度所决定。一般情况下,铁酸钙生成量随时间的增长和温度的升高而增多。在模拟鞍钢原料有 SiO_2等组分条件下,铁酸钙生成量在高温烧结后期有所下降。通过试验得出在不同条件下的铁酸钙生成量和烧结时间的定量关系。烧结料配碳量增加,铁酸钙生成量减少。
As shown in experimental results, the rate of calcium ferrite formation insintering process depends mainly on the reacting temperature.Generally,theamount of formed calcium ferrite increases with the sintering duration andtemperature. In a high-temperature sintering process for which the raw ma-terials used were analog to those sinter mixture prepared in Anshan Iron andSteel Co., the amount of formed calcium ferrite showed being decreased some-what at the later stage. As a result, the relationships between formed cal-cium ferrite and sintering duration under different conditions obtained quan-titatively.It is also found that the amount of formed calcium ferrite decreaseswith the increasing carbon content in sinter mixture.
基金
国家博士点基金
关键词
烧结
反应速度
矿相组成
铁酸钙
sintering process
rate of reaction
mineral constituent
calcium ferrite
electron probe
