鲕状赤铁矿悬浮焙烧试验研究  

Study on Suspension Roasting for Oolitic Hematite

作　　者：陈超[1,2] 李艳军[2] 张裕书[1] 王儒[2] 韩跃新[2] 

机构地区：[1]中国地质科学院矿产综合利用研究所钒钛磁铁矿综合利用重点实验室,四川成都610041 [2]东北大学资源与土木工程学院,辽宁沈阳110004

出　　处：《矿产综合利用》2013年第6期30-34,共5页Multipurpose Utilization of Mineral Resources

基　　金：中国地质大调查资助项目鲕状赤铁矿高效清洁利用技术试验研究(1212011120317);矿用悬浮焙烧炉的研制(1212011120311)

摘　　要：研究对象为典型的"宁乡式"鲕状赤铁矿,属微细粒嵌布高磷鲕状赤铁矿,TFe品位44.56%。利用自制的实验室间歇式悬浮焙烧炉,考察了给矿细度、气流速度、H2浓度、焙烧温度、焙烧时间等对悬浮焙烧的影响,在适宜的条件下,获得了TFe品位56.73%,回收率83.96%的较优指标。相比于马弗炉焙烧,悬浮焙烧可以缩短焙烧时间,提高焙烧产品质量,降低焙烧能耗,具有较强的推广意义。The fine-disseminated high phosphorus oolitic hematite with a TFe grade of 44.56% was researched by the homemade laboratory batch-type suspension roaster. The feeding fineness, gas velocity, hydrogen concentration, roasting temperature, roasting time were investigated and at an appropriate condition, the optimal index with a TFe grade of 56.73% and a recovery of 83.96% was achieved. Compared with a muffle furnace ,the suspension roaster can shorten roasting time,improve product quality and reduce roasting energy consumption with a high popularizing significance.

关 键 词：鲕状赤铁矿 磁化焙烧 流态化 

分 类 号：TD951[矿业工程—选矿]