耐火与石灰 ›› 2014, Vol. 39 ›› Issue (5): 9-12.

• 综述 • 上一篇    下一篇

钒铁冶炼炉氧化铝渣用于耐火材料的性能分析

吴胜利   

  1. 攀枝花钢城集团有限公司, 攀枝花617023
  • 出版日期:2014-10-22 发布日期:2014-10-22

Analysis on performances of melting furnace alumina slag used for refractory material

Wu Shengli   

  1. Panzhihua Gangcheng Group Co.,Ltd., Panzhihua 617023, China
  • Online:2014-10-22 Published:2014-10-22

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Al2O3、MgO和CaO,且以镁铝尖晶石、铝酸钙为主;耐火度大于1 790℃,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。

Abstract:

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 Al2O3,MgO and CaO,and the major compositions 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 aggregate.In conclusion,the alumina slag can be used for refractory material.

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