调质高炉熔渣喷吹法制备矿渣纤维的研究  

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

作　　者：李智慧[1,2] 张玉柱[1,2] 龙跃[2] 张良进[2] 杜培培[2] 任倩倩[1] 

机构地区：[1]东北大学冶金学院,辽宁沈阳110004 [2]华北理工大学,现代冶金技术教育部重点实验室,河北唐山063009

出　　处：《钢铁钒钛》2016年第3期76-80,共5页Iron Steel Vanadium Titanium

基　　金：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)

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。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.

关 键 词：高炉渣 喷吹法 矿渣纤维 直径 

分 类 号：X757[环境科学与工程—环境工程] TQ343[化学工程—化纤工业]