利用CO_2减少炼钢烟尘的实验研究  

Experimental research on dust reduction in steelmaking by CO_2

作　　者：宁晓钧[1] 尹振江[1] 易操[1] 朱荣[1] 董凯[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083

出　　处：《炼钢》2009年第5期32-34,共3页Steelmaking

基　　金：国家自然科学基金项目(50574013)

摘　　要：炼钢过程每冶炼1t钢产生约10-20kg烟尘，烟尘量的增加既降低金属收得率又增加了除尘负荷。炼钢烟尘的治理，传统方式是在烟尘产生后再进行回收处理利用；然而如何在冶炼过程中减少烟尘产生的工艺方法还未见文献报道。通过热力学计算和理论分析，进行了利用CO2减少炼钢烟尘产生的探索性实验，实验结果表明，随着混合喷吹中二氧化碳比例的提高，烟尘的产生量逐步减少，铁损呈明显的下降趋势。The dust occuring in steel-making is about 10-20 kg/t steel. Increase in the dust amount not only reduces the yield of metal, but also adds the load of dust removal. The traditional method of controlling the dust is to recycle and utilize the dust produced. However the dust removal techniques in the smelting process are rarely seen and reported. By means of the thermodynamic calculation and the theoretical analysis an exploratory experiment on reduction of the dust using CO2 has been made and results show that the dust generation declines step by step and the iron loss tends to decrease obviously with the increase of the proportion of CO2 in the mixed injection.

关 键 词：炼钢 CO2 烟尘 

分 类 号：X75[环境科学与工程—环境工程]