试验用小型沸腾炉焙烧硫铁矿试验研究  

Experimental Research on Roasting Pyrite in Small Fluidized-bed Roaster

作　　者：徐建林[1] 史光大[1] 李元坤[1] 钟庆文[1] 余平[1] 

机构地区：[1]中国地质科学院矿产综合利用研究所。四川成都610041

出　　处：《矿产综合利用》2012年第1期43-45,共3页Multipurpose Utilization of Mineral Resources

基　　金：国土资源地质大调查项目(1212010816037)

摘　　要：用小型沸腾炉对硫含量50%的硫精矿进行了模拟沸腾焙烧试验,经过对焙烧温度、焙烧时间和进气压力的试验,确定了较佳工艺条件为:焙烧温度800℃,焙烧时间为5min,进气压为0.5MPa,得到的烧渣中硫含量低于0.30%,全铁含量大于64%。实验室模拟焙烧试验产出的烧渣质量较好,达到了高品位铁精矿的质量要求。The simulated fluidized roasting experiment in a small fluidized-bed roaster was carried on the pyrite coneentrate containing 50% of sulfur. Through the experiment, the optimal technological conditions were determined： the roasting temperature was 800℃ ,the roasting time was 5min and the intake pressure was 0.5MPa. At last, the content of sulfur in the cinder is less than 3% , while the iron grade is over 64%. The quality of the cinder produced from the simulated experiment is good, reaching the requirements of high grade iron concentrate.

关 键 词：小型沸腾炉 焙烧 硫铁矿 

分 类 号：TF046[冶金工程—冶金物理化学]