转底炉珠铁工艺处理硼铁精矿初探  

Exploration to Treat Boron-bearing Iron Concentrate Based on RHF Iron Bead Technology

作　　者：王广[1,2] 王静松[1,2] 丁银贵[1,2] 马赛[1,2] 薛庆国[1,2] 

机构地区：[1]北京科技大学冶金与生态工程学院 [2]生态与循环冶金教育部重点实验室

出　　处：《金属矿山》2011年第8期76-80,共5页Metal Mine

基　　金："十一五"国家科技支撑计划项目(编号:2008BAB32B05);中央高校基本科研业务费专项资金项目(编号:FRF-MP-09-001A)

摘　　要：针对现有硼铁精矿硼铁分离工艺所存在的的弊端,提出采用转底炉珠铁工艺处理硼铁精矿,并通过热力学分析和实验室试验进行了验证。实验室试验表明:对于辽宁凤城Fe和B2O3含量分别为47.20%和6.90%的硼铁精矿,以莱芜钢铁公司所用无烟煤为还原剂、QT-10为造球粘结剂,用高温硅钼炉模拟转底炉,当硼铁精矿和煤粉的配合比分别为83.3%和16.7%、粘结剂配入量为精矿和煤粉总质量的2%、混合料的水分为7%时,含碳球团经1 400℃焙烧15 min,可很好地实现渣铁分离,所得含硼珠铁和高活性富硼渣分别可作为钢铁冶金和硼化工工业的优质原料。In view of disadvantages of present iron and boron separation technology,this paper proposed to adopt the RHF iron bead technology to treat the boron-bearing iron concentrate,and then it was verified by the thermodynamic feasibility analysis and laboratory tests.The laboratory research indicated that for the boron-bearing iron concentrate with Fe and B2O3 content of 47.20% and 6.90% respectively in Fengcheng of Liangning,an effective separation of slags and iron was realized by taking anthracite used in Laiwu Iron and Steel Company as reductant,QT-10 as pelletizing binder,high-temperature silicon-molybdenum furnace to simulate the rotary hearth furnace,under conditions of the mixing ratio of boron-bearing iron concentrate and coal dust at 83.3% and 16.7%,the amount of binder occupying 2% of total mass of concentrate and coal dust,moisture content in mixing materials at 7%,and carbon pellet calcined at 1 400 ℃ for 15 min.By this process,the boron-bearing iron beads and the high active boron-bearing steel slags obtained can be used as high-quality raw materials for steelmaking and boron chemical industry separately.

关 键 词：硼铁精矿 硼铁分离 转底炉 珠铁 富硼渣 

分 类 号：TD951.1[矿业工程—选矿]