燃料配加工艺对烧结矿成分及性能的影响

Influences of Fuel Appending Modes on Component Uniformity and Performance of Sinter

采用现场工业试验的方法,探索了不同的燃料配加工艺对烧结矿中FeO、S及残C沿料层厚度方向的分布规律与变化趋势,以及对烧结矿低温冶金性能的影响。结果表明,在燃料全部外加的新工艺条件下,烧结矿中FeO、S及残碳沿料层厚度方向的分布趋于更加均匀,其标准偏差分别为0.39%、0.003%和0.003%,极差分别为0.99%、0.009%和0.004%;RDI+3.15(74.90%)、R(I78.90%)明显改善。分析认为,主要是新工艺的燃料配加方式使烧结料层的热量分布趋于合理,各处透气性更加均匀,对烧结生产产生有利影响。

By the industry tests,the authors discussed the distribution rule and change trend in the bed thickness direction of the FeO,S and residual carbon in the sinter ore,and the influences on the low temperature metallurgy capability of the sinter ore.The results showed that using appending additional fuel,the distribution in the thickness direction of the FeO,S and residual carbon more uniformity;their standard deviations were 0.39%,0.003% and 0.003% respectively and the ranges were 0.99%,0.009% and 0.004% respectively;The RDI＋3.15（was 74.90%） and RI（was 78.90%） were improved obviously.Analyses think that appending additional fuel made heat distributing of bed layer more reasonable and everywhere permeability more even,being good to the sinter production.