STUDY ON EROSION PROCESS OF VANADIUM-TITANIUM BEARING SLAG WITH HIGH ALKALI CONTENT ON BLAST FURANCE LINING
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摘要: 通过高碱含量的钒钛渣对不同耐火材料的侵蚀实验,分析了碱侵蚀后耐火材料结构及附渣组成的变化。研究结果表明:铝炭砖抗碱侵蚀性最强;粘土砖与高铝砖的侵蚀速率较使用普通钒钛渣大;刚玉莫来石砖抵抗碱金属的侵蚀能力差,对碱容易渗透、且与基质成分反应性强的耐火材料,结构致密化是以后改进的一个方向。Abstract: The variation of refractory materials’ structure and composition after eroded by vanadium-titanium bearing slag with high alkali content was analyzed on the basis of laboratory erosion experiments. The results show that alumina-carbon brick is of outstanding alkaline attack resistance, the attacking rate of clay brick and alumina brick is increased when the vanadium-titanium bearing slag contain alkali, the alkaline attack resistance of corundum-mullite brick is poor. Densifying the structure of refractory material which is attacked easily by alkali and is of high reactivity is a improvement goal for further research.
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Key words:
- blast furnace /
- refractory lining /
- alkali attack /
- vanadium-titanium bearing slag
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