山西某铁矿厂一段球磨工艺指标优化研究  

Optimization Study on Technological Index of Primary Ball Milling of an Iron Mine in Shanxi Province

作　　者：王彬 任頔 杜成 周强[4,5,6] 肖庆飞 王庆凯[5,6] WANG Bin;REN Di;DU Chen;ZHOU Qiang;XIAO Qing-fei;WANG Qing-kai(Tongling Nonferrous Jinshen Wear-resistant Material Co.,Ltd.,Tongling 244000,Anhui;China Gold Group Inner Mongolia Mining Co.,Ltd.,HulunBuir 024100,Inner Mongolia;School of Minerals Processing and Bioengineering,Central South University,Changsha 410000,Hunan;Kunming University of Science and Technology,Kunming 650093,Yunnan;State Key Laboratory of Process Automation in Mining&Metallurgy,Beijing 100083;Beijing Key Laboratory of Process Automation in Mining&Metallurgy,Beijimg 100083)

机构地区：[1]铜陵有色金神耐磨材料有限责任公司,安徽铜陵244000 [2]中国黄金集团内蒙古矿业有限公司,内蒙古呼伦贝尔024100 [3]中南大学资源加工与生物工程学院,湖南长沙410000 [4]昆明理工大学国土资源工程学院,云南昆明650093 [5]矿冶过程自动控制技术国家重点实验室,北京100083 [6]矿冶过程自动控制技术北京重点实验室,北京100083

出　　处：《铜业工程》2022年第5期26-30,共5页Copper Engineering

基　　金：国家自然科学基金地区科学基金资助(编号51964044);矿冶过程自动控制技术国家重点实验室开放基金项目(BGRIMM-KZSKL-2022-1);云南省地方高校(部分)联合专项(2018FH001-051);云南省教育厅基金(2019J0738).

摘　　要：针对山西某铁矿厂一段球磨指标进行优化试验研究,对矿石进行力学性质测定、球磨机给矿筛分,按照段式球径半理论公式确定初装球推荐方案为m(Φ60):m(Φ50):m(Φ40):m(Φ30)=15:20:25:40,设置现场方案、偏大方案以及偏小方案作为对比。通过磨矿对比试验得出,初装球推荐方案较现场方案相比,+0.10 mm粗粒级别产率下降14.53%,中间可选级别(-0.10+0.020 mm)产率提高22.26%,中间易选级别(-0.074+0.020 mm)产率提高15.72%,-0.020 mm过粉碎率降低7.75%,磨矿技术效率提高29.03%,综合比较推荐方案全面优于现场方案。In view of the optimization test study of the first section of the ball milling index of an iron ore mine in Shanxi,the mechanical properties of the ore were determined,and the ball mill was screened.According to the semi-theoretical formula of section ball diameter,the recommended scheme of the preliminary ball was determined as m(Φ60):m(Φ50):m(Φ40):m(Φ30)=15:20:25:40.The field scheme,the larger scheme and the smaller scheme were set as the comparison.Through the grinding comparison test,it was concluded that compared with the field scheme,the yield of+0.10mm coarse particle grade was reduced by 14.53%and the yield of middle optional grade(-0.10+0.020mm)was increased by 22.26%.The yield of intermediate easy separation grade(-0.074+0.020mm)was increased by 15.72%,the over-grinding rate of-0.020 mm was reduced by 7.75%,and the grinding technical efficiency was increased by 29.03%.

关 键 词：磨矿 精确化配球 粒度组成 磨矿效率 

分 类 号：TD95[矿业工程—选矿]