胶磷矿预先脱泥-浮选试验研究  

Optimization of Pre-desliming and Flotation Flowsheet for Collophane Beneficiation

作　　者：李宁[1] 刘润哲[1,2] LI Ning;LIU Run-zhe(Yunnan Phosphate Chemical Group Co Ltd,Kunming 650600,Yunnan,China;National Engineering and Technological Research Centre for Development and Utilization of Phosphate Resources,Kunming 650600,Yunnan,China)

机构地区：[1]云南磷化集团有限公司,云南昆明650600 [2]国家磷资源开发利用工程技术研究中心,云南昆明650600

出　　处：《矿冶工程》2022年第2期63-65,69,共4页Mining and Metallurgical Engineering

基　　金：“十三五”国家重点研发计划(2018YFC1900200)。

摘　　要：某胶磷矿选厂入磨原矿中-0.074 mm粒级含量7.05%,这部分矿石一方面影响磨矿分级效果,另一方面影响浮选效果。为解决该问题进行了预选脱泥,即-0.074 mm粒级矿样直接浮选,而对+0.074 mm粒级矿样进行磨矿-浮选,结果表明,与原矿直接磨矿-浮选相比,脱泥磨矿效果可以提升8.90%,脱泥浮选产率提高了0.46个百分点,回收率提高了3.37个百分点,调整剂用量下降了0.64%,捕收剂用量下降了9.75%。In a collophane concentrator,the raw ore with the particle size in the range of-0.074 mm accounts for 7.05%.This part affects the performance of both the grinding-classification and the flotation.To solve the problem,a desliming pretreatment was conducted,through which the raw ore at a sizing of-0.074 mm was separated out and processed directly by flotation,while the raw ore at a sizing of +0.074 mm was treated using a grinding and flotation flowsheet.Compared with the raw ore directly processed with grinding and flotation approach,the new processing technique can improve the desliming-grinding efficiency by 8.90%,increase the yield and recovery of desliming-flotation process by 0.46 percentage point and 3.37 percentage points,respectively,as well as decrease the dosage for regulator and collector by 0.64% and 9.75%,respectively.

关 键 词：胶磷矿 脱泥 磨矿 浮选 

分 类 号：TD971[矿业工程—选矿]