炼钢过程喷吹CO_2的实验研究  

Experimental Study of CO_2 Blowing in Steelmaking Process

作　　者：张伟[1,2] 李智峥[1] 朱荣[1] 刘润藻[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]西宁特殊钢股份有限公司,青海西宁810005

出　　处：《工业加热》2015年第2期41-44,共4页Industrial Heating

基　　金：科技部"十二五"国家科技支撑资助项目(2012BAC27B01);国家自然科学基金重点项目(51334001)

摘　　要：通过在炼钢过程中混合喷吹CO2,发现废钢为原料时,粉尘主要是由高温蒸发作用产生的;生铁为原料时,粉尘是在高温蒸发作用和气泡携带的共同作用下产生的。CO2的通入一方面降低熔池的温度,减弱了元素的蒸发;另一方面使得熔池搅拌加强,由气泡带走的元素增加。因此,CO2的通入应有一个合理的比例。This task using CO2 and O2 mixed blowing in the steelmaking process, proves that dust is produced mainly by evaporation due to high temperature when using scrap as raw material, while by evaporation and bubble carrying when using pig iron as raw material. On the one hand, blowing CO2 lowers the temperature of the bath, reducing the evaporation of elements in the bath. On the other hand, it strengthens the stirring of the bath, increasing the elements carrying by bubbles. As a result, there should be a reasonable ratio of CO2 blowing.

关 键 词：炼钢 CO2 混合喷吹 

分 类 号：TF748[冶金工程—钢铁冶金]