钒铁冶炼炉氧化铝渣用于耐火材料的性能分析

摘要

通过选取完整的氧化铝渣饼,进行物理化学性能测试,来探索钒铁冶炼炉氧化铝渣用于耐火材料的可能性。测试结果显示,氧化铝渣的主要成分为 Al2 O3、MgO 和 CaO,且以镁铝尖晶石、铝酸钙为主；耐火度大于1790℃,体积密度大于3.0g·cm-3,吸水率小于3.0%；氧化铝渣具有水硬性,可替代高铝水泥；其颗粒强度与焦宝石接近,可用作耐火骨料。综合各项指标,氧化铝渣可用于耐火材料。%To explore the usability of vanadium iron smelting furnace slag for refractory alumina,this paper introduces a physical chemistry experiment with an unbroken alumina slag cake. The result shows that the major constituents of the alumina slag are Al2 O3 ,MgO and CaO,and the major compo-sitions are spinel and calcium aluminate;its refractoriness is over 1 790 ℃ ,the bulk density is higher than 3. 0g·cm -3 ,the water absorption is 3. 0% . Alumina slag can be uesd to replace high alumina cement for its hydraulicity. Its particle strength is similar with flint,so it can be used as refractory ag-gregate. In conclusion,the alumina slag can be used for refractory material.