调质高炉熔渣喷吹法制备矿渣纤维的研究

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基金项目:

国家科技支撑计划资助项目(2012BAE09B00)；国家自然科学基金面上项目(51274270)；河北省科技计划项目(15210110D)；河北省科技计划项目(15273817)

Experimental Study on the Direct Fibrosis of Quenched and Tempered Blast Furnace Slag

1. School of Metallurgy, Northeastern University, Shenyang 110004, Liaoning, China;
2. North China University of Science and Technology, Key Laboratory of Modern Metallurgical Technology, Ministry of Education, Tangshan 063009, Hebei, China

摘要: 采用自主设计搭建的实验平台,利用高速气流喷吹的方法,进行高炉热熔渣成纤试验,探讨熔渣成纤机理,分析影响纤维直径及性能的因素。结果表明:采用喷吹法制备矿渣纤维,熔渣经过液膜形成、凸起形成和凸起拉丝三个过程形成纤维;随气量压力的增大,纤维直径越细;调质熔渣酸度系数为1.1~1.4,温度在1 350~1 500℃制得纤维性能较好,此研究为工业扩大化生产提供理论依据。
- 高炉渣 /
- 喷吹法 /
- 矿渣纤维 /
- 直径
Abstract: The fibrosis of molten blast furnace slag was studied by high speed air blowing method using the independently designed and built experimental platform.The fibrosis mechanism of the molten slag was discussed and the factors influencing the diameter and properties of the obtained fiber were analyzed.The results show that the fiber is formed through three processes of liquid membrane formation,bulge formation and bump drawing during the air blowing.The diameter of the fiber decreases with increase in gas pressure,and the fiber owning the most excellent properties can be obtained with 1.1~1.4 of acidity coefficient for the quenched and tempered slag at 1 350~1 500℃.This study can provide theoretical basis for expanded industrial production.
- blast furnace slag /
- blowing process /
- slag fiber /
- diameter