钒钛铁精矿生球的爆裂性能研究  

Study on rupture performance of green pellets of V-Ti-bearing iron ore concentrate

作　　者：侯静[1,2] 吴恩辉[1,2] 李军[1,2] 杨绍利[1,2] 郭家庭 

机构地区：[1]攀枝花学院,四川攀枝花617000 [2]四川省钒钛材料工程技术研究中心暨钒钛资源综合利用四川省重点实验室,四川攀枝花617000

出　　处：《烧结球团》2014年第1期25-27,31,共4页Sintering and Pelletizing

基　　金：国家自然科学基金资助项目;项目编号:51174122/E0413

摘　　要：爆裂性能是生球质量的一项重要指标,生球的爆裂率及爆裂温度对转底炉的稳定生产影响很大,而生球爆裂性能与其水分、粘结剂、原料粒度等因素有关。实验研究表明:控制水分在5%左右,添加0.6%膨润土,适当增加粗颗粒原料时,生球爆裂温度可达在900℃以上,完全满足转底炉工艺要求。Rupture performance is an important index for green pellet quality, the rupture rate and rupture temperature of green pellets have great effect on stable production of rotary hearth furnace, whereas the rupture of green pellet has something to do with its moisture, bonding agent and raw material granularity. The results of the test study show that, if the moisture is controlled around 5% ,0. 6% bentonite is added and coarse raw materials are increased appropriately,the rupture temperature of green pellets can be above 900 ~C, which can fully meet the RHF process requirements.

关 键 词：爆裂性能 爆裂温度 生球水分 原料粒度 膨润土用量 

分 类 号：TF046.6[冶金工程—冶金物理化学]