高炉熔渣直接纤维化矿渣棉的性能研究

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基金项目:

国家科技支撑计划资助项目(编号:2012BAE09B00)；国家自然科学基金资助项目(编号:51274270)；河北省科技计划资助项目(编号:15210110D)

The Physical and Chemical Properties of Slag Wool by Direct Fibration of Blast Furnace Slag

1. School of Metallurgy and Energy Resource, North China University of Science and Technology, Modern Metallurgical Technique Key Laboratory of Ministry of Education, Tangshan 063009, Hebei, China;
2. School of Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China

摘要: 以酸度系数为1.25的调质高炉渣为原料在实验室进行了四辊离心法制备矿渣棉试验。对所得矿渣棉表观形貌及直径、渣球含量及吸水率、矿相及析晶温度进行分析。结果表明:矿渣棉表面呈光滑的圆柱状,其直径、渣球含量和吸水率分别为4.9μm、3.76%和0.73%,均符合国标要求;矿渣棉的玻璃化程度较高,除极少量钙铝黄长石(Ca[Al(AlSi)O₇])和钙镁黄长石(Ca₂MgSi₂O₇)外,析晶几乎为零,其析晶温度在882℃左右。
- 高炉渣 /
- 纤维化 /
- 矿渣棉 /
- 直径 /
- 矿相 /
- 析晶
Abstract: Slag wool was prepared in laboratory by four-roller centrifugation method using blast furnace slag with 1.25 of acidity coefficient as raw material.The microstructure,diameter,shot content and moisture,mineragraphy and crystallization temperature of the obtained slag wool were analyzed.The results show that the slag wool is solid cylindrical fiber with smooth surface,and its diameter,shot content and moisture is respectively 4.9 μm,3.76% and 0.73%,satisfying the international standard overall.Furthermore,the slag wool has a higher vitrification degree with about 882℃ of crystallization temperature and almost no crystallization except for a very small amount of calcium aluminum melilite(Ca[Al(AlSi)O₇]) and calcium magnesium melilite(Ca₂MgSi₂O₇).
- blast furnace slag /
- fibration /
- slag wool /
- diameter /
- mineral phase /
- crystallization