摘要
福建某微细粒嵌布磁铁矿石采用现场的磨选流程处理,精矿铁品位达不到产品质量要求。现场粗精矿矿物性质分析结果表明,其单体磁铁矿物约占60%,磁性铁占有率为95.13%,适宜采用单一弱磁选工艺处理。在进行了弱磁选场强和中矿再磨细度条件试验后,进行了筛分分级—筛下2段弱磁精选—筛上中矿再磨—磨矿产品2段弱磁精选流程试验,最终可获得铁品位为64.18%、铁回收率为95.41%的铁精矿。试验流程是处理该矿石的简洁而高效的流程。
The micro-fine disseminated magnetite ore from Fujian use grind-separation flow in field, iron grade of the concentrates are less than the product quality requirements. The field crude concentrate mineral properties analysis results showed that the monomer material have about 60% in it,magnetic iron share is 95. 13% ,itg suitable for handling a single low intensity magnetic separation craftwork. Following the condition test of low intensity magnetic separation field strength and middies regrinding the degree of fineness, then has conducted the screening classification-under the screen 2 segment low intensity magnetic concentration on the screen middles regrinding-grinding product 2 segment low intensity magnetic concentration flow test, which finally can obtain iron concentrates of iron grading 64. 18% , the iron recovery 95.41%. Test flow is simple and efficient test to handle the ores.
出处
《金属矿山》
CAS
北大核心
2011年第11期75-77,106,共4页
Metal Mine
关键词
磁铁矿
预先细筛
弱磁选
Magnetite ore, Pre-fine screening, Low intensity magnetic separation
