超声对萝北石墨浮选不同段数浮选效果的影响  

Effect of Ultrasound on Graphite Flotation of Different Stages of Luobei

作　　者：康文泽 卢万里 张宝成 KANG Wenze;LU Wanli;ZHANG Baocheng(Institute of Mining Engineering,Heilongjiang University of Science and Technology,Harbin 150022,Heilongjiang,China;Coal and Graphene Testing Laboratory of Hegang,Hegang 154103,Heilongjiang,China)

机构地区：[1]黑龙江科技大学矿业工程学院,黑龙江哈尔滨150022 [2]鹤岗煤炭和石墨烯检测实验室,黑龙江鹤岗154103

出　　处：《矿产综合利用》2024年第3期43-49,共7页Multipurpose Utilization of Mineral Resources

基　　金：黑龙江省人保厅领军人才梯队资助项目。

摘　　要：这是一篇矿物加工工程领域的论文。为了探讨超声预处理对石墨浮选不同段数浮选效果的影响,进行了不同超声时间对石墨粗选、精选的影响实验。研究结果表明:当矿石中含有易泥化矿物时,超声预处理不能提高石墨粗选效果。超声预处理精选2段、4段、6段的浮选效果与常规精选相比,随着超声预处理时间的增加,石墨精选效果逐渐提高,当超声预处理2.5 min时,石墨精选效果较好。在逐段超声精选实验中,超声预处理0.5 min时,对精选1~4段作用效果不明显,对精选5段、精选6段有一定效果;超声预处理2.5 min时,对每一精选段均有明显效果,超声预处理精选效果的排序是超精5>超精6>超精4>超精3>超精2>超精1。研究证明,在石墨精选的后段进行超声预处理的浮选效果优于前段。This is an article in the field of mineral processing engineering.In order to explore the influence of ultrasonic pretreatment on the graphite flotation process of different stages,tests on the effects of different ultrasonic time on the roughing and cleaning of graphite were carried out.The research results show that when the ore contains muddy minerals,ultrasonic pretreatment can’t improve the effect of graphite roughing.Compared with the conventional flotation,the flotation effect of ultrasonic pretreatment for ultrasonic treatment cleaning stage 2,4 and 6 is gradually improved with the increase of the ultrasonic pretreatment time.When the ultrasonic pretreatment time is 2.5 min,the graphite selection effect is the best.In the test of stage by stage ultrasonic cleaning,the effect of ultrasonic pretreatment for 0.5 min on 1~4 stages is not obvious,but it has a certain effect on 5 and 6 stages.When the ultrasonic pretreatment time is 2.5 min,the effect of each fine section is obvious.The order of the cleaning effect of ultrasonic pretreatment is ultrasonic treatment cleaning stage 5>stage 6>stage 4>stage 3>stage 2>stage 1.The research shows that the flotation effect of ultrasonic pretreatment in the rear section of graphite cleaning is better than that in the front one.

关 键 词：矿物加工工程 超声预处理 粗选 精选 回收率 

分 类 号：TD97[矿业工程—选矿]