硫酸渣配加精矿粉造球工艺试验研究  

Experiment on Pelletizing Technology Using Sulfate Residue With Concentrate Fines

作　　者：宋延琦[1] 李京社[1] 唐海燕[1] 杨明生[1] 杨树峰[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：《湿法冶金》2010年第1期59-62,65,共5页Hydrometallurgy of China

摘　　要：为综合利用固体废弃物硫酸渣、实现循环经济和生态化生产,在微型球团矿焙烧模拟系统中,研究了硫酸渣配加精矿粉造球,并进行了预热和焙烧工艺试验。试验结果表明:硫酸渣配加精矿粉的比例应不低于20%,适宜的造球时间为10 min,生球中水分质量分数应控制在12.5%左右。试验确定了相应的预热-焙烧工艺参数,为固体废弃物硫酸渣的利用提供了一个新途径。In order to use sulfate residue for achieving circular economy and ecological manufacture, the experiments on pelletizing with sulfate residue and magnetite concentrate fines are carried out by simulating grate-kiln pellet process in micro-pellet roasting simulation system in laboratory. And the process tests on preheating and roasting are conducted. The results show that the mass fraction of concentrate fines should be over 20%, the suitable pelletizing time is about 10min and moisture is around 12.5 %. The relevant process parameters of preheating and roasting are determined by tests. The process is a new way for using sulfate residue.

关 键 词：硫酸渣 精矿粉 造球 工艺试验 

分 类 号：TF046[冶金工程—冶金物理化学]