鄂西鲕状赤铁矿还原焙烧机理及分选有效途径探析  

Exploration of Reduction Roasting Mechanism and Effective Beneficiation Process for Oolitic Hematite Ore from Western Hubei

作　　者：祁超英[1] 余永富[2,3] 张亚辉[2] 

机构地区：[1]武汉钢铁集团矿业有限责任公司 [2]武汉理工大学 [3]长沙矿冶研究院

出　　处：《金属矿山》2010年第10期57-60,共4页Metal Mine

摘　　要：研究分析了鄂西鲕状赤铁矿的矿石性质,通过对几种国内典型难选氧化铁矿石与鄂西鲕状赤铁矿石的还原焙烧—磁选对比研究发现,鄂西鲕状赤铁矿与赤铁矿、褐铁矿和菱铁矿的磁化焙烧效果存在较大的差异。对鄂西鲕状赤铁矿还原焙烧机理进行了探讨、分析,指出降低矿石还原焙烧粒度(0.2mm以下)、采用闪速磁化焙烧—磁选工艺是开发鄂西鲕状赤铁矿的一个比较有前途的方向和途径。The paper analyzed the ore properties of oolitic hematite in Western Hubei.And the contrast study on reduction roasting-magnetic separation effect of this oolitic hematite and that of several domestic typical refractory oxidized iron ores found that the magnetization effect of roasting for oolitic hematite ore from western Hubei was much different from those for hematite,limonite and siderite ores under same magnetizing roasting conditions.The mechanism for reduction roasting of oolitic hematite ore was discussed and analyzed.It is proposed that a way of adopting flash magnetizing roasting-magnetic separation process after reducing particle sizes of feeding （below 0.2 mm）,and is a promising approach for recovering the oolitic hematite ore in western Hubei province.

关 键 词：鲕状赤铁矿 选矿 磁化焙烧 机理 

分 类 号：TD942.13[矿业工程—选矿]