配碳比对热压含碳球团软熔滴落性能的影响  

Effects of Carbon Ratio on Softening-Dripping Behavior of Carbon Composite Iron Ore Hot Briquette

作　　者：储满生[1] 柳政根[1] 王兆才[1] 付磊[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2010年第3期394-397,共4页Journal of Northeastern University(Natural Science)

基　　金：国家高技术研究发展计划项目(2008AA03Z102)

摘　　要：在碱度固定为1.20的条件下,系统研究了配碳比n(FC)/n(O)对热压含碳球团软熔滴落性能的影响,并进行了理论分析.研究表明,配碳比对软化区间、熔化区间、滴落率等软熔滴落性能参数有显著的影响.随着配碳比增加,软化区间t40～t4先变窄后加宽,在配碳比为1.00时最窄,降至348℃;熔化区间tD～tS也先变窄而后加宽,当配碳比为1.00时最窄,降至46℃;滴落率先增加后降低,在配碳比为1.08时滴落率最高,达到24.66%.从软熔滴落性能角度综合考虑,实际生产热压含碳球团时其配碳比宜定在1.00左右.Effects of carbon ratio（n（FC）/n（O））on the softening-dripping behavior of carbon composite iron ore hot briquette（CCB）were studied systemically and theoretically,with the basicity 1.20 unchanged.The results showed that the carbon ratio affects greatly the softening-dripping parameters,such as softening range,melting range and dripping ratio.With the increasing carbon ratio,the softening range t40～t4 tends to narrowing then widening,and becomes the narrowest（348 ℃）at the carbon ratio 1.00.The melting range tD～tS also tends to narrowing then widening,and becomes the narrowest（46 ℃）at the carbon ratio 1.00.The dripping ratio tends to increasing then decreasing,which comes up to its highest value（24.66%）at the carbon ratio 1.08.Taking account of the softening-dripping behavior comprehensively,the carbon ratio appropriate to actual production of CCB should be set around 1.00.

关 键 词：炼铁原料 热压含碳球团 软熔滴落性能 配碳比 

分 类 号：TF046.6[冶金工程—冶金物理化学]