海南某赤铁矿柱式反浮选试验  

Test of Flotation Column in Reverse Flotation of a Hematite Ore in Hainan

作　　者：朱海龙[1] 张铃 伍红强 ZHU Hailong;ZHANG Ling;WU Hongqiang(Hainan Mining Co.,Ltd.;Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.)

机构地区：[1]海南矿业股份有限公司,海南省昌江黎族自治县572700 [2]中钢集团马鞍山矿山研究总院股份有限公司

出　　处：《现代矿业》2022年第9期119-122,共4页Modern Mining

基　　金：复杂铜硫铁矿石高效预选及综合利用关键技术研究项目(编号:202104a07020012)。

摘　　要：为了提高海南某赤铁矿选厂的磁选精矿品位,进行了旋流-静态微泡浮选柱阴离子反浮选试验研究,通过条件试验确定的浮选柱给料速度为230 mL/min,捕收剂用量1800 g/t,粗选循环泵压力0.14 Mpa,浮选浓度38%,粗选浮选柱吸气量1.0 m3/h。试验结果表明:在给矿品位49.44%的条件下,采用脱硫+1粗1扫反浮选流程,获得了精矿产率为57.37%、铁精矿品位62.62%、铁回收率72.66%的较好指标。试验体现了浮选柱在赤铁矿浮选中分选流程短和分选效率高的优势。In order to improve the grade of magnetic separation concentrate in a hematite concentra⁃tor in Hainan,the anionic reverse flotation test of cyclone-static micro-bubble flotation column was car⁃ried out.The feed rate of flotation column determined by conditional test was 230 mL/min,the dosage of collector was 1800 g/t,the pressure of roughing circulating pump was 0.14 MPa,the flotation concentra⁃tion was 38%,and the air intake of roughing flotation column was 1.0 m3/h.The test results show that un⁃der the condition of ore grade of 49.44%,a good index of concentrate yield of 57.37%,iron concentrate grade of 62.62%and iron recovery of 72.66%was obtained by desulfurization+one roughing one scaveng⁃ing reverse flotation process.The test shows that the flotation column has the advantages of short separation process and high separation efficiency in hematite flotation.

关 键 词：旋流-静态微泡浮选柱 赤铁矿 反浮选 

分 类 号：TD951[矿业工程—选矿] TD923