Lining a layer of ceramic pads at the bottom of hearth can directly influence the slag-pig solidified layer.

在炉缸底部炭砖热面筑砌一层陶瓷垫，直接影响炉底渣铁凝固层的形成。

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The results as following:The morphology of the solidified blast furnace slag bearing RE elements was studied by means of SEM observation with the help of EDX qualitative analysis and XRD analysis.

应用扫描电镜（SEM）观察并配合成分能谱分析（EDX）和X射线衍射（XRD）分析的方法，研究了含稀土高炉凝渣的相构成。

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