磁选机磁系仿真及优化研究  

Study on simulation and optimization of the magnetic system of the magnetic separator

作　　者：张健 ZHANG Jian(Tangshan Research Institute Co.Ltd.,China Coal Technology&Engineering Group,Tangshan 063012,China;Tangshan Guoxuan Clean Coal Co.Ltd.,Tangshan 063012,China;Hebei Province Coal Preparation Engineering and Technology Research Center,Tangshan 063012,China)

机构地区：[1]中煤科工集团唐山研究院有限公司,河北唐山063012 [2]唐山国选精煤有限责任公司,河北唐山063012 [3]河北省煤炭洗选工程技术研究中心,河北唐山063012

出　　处：《选煤技术》2022年第5期28-32,共5页Coal Preparation Technology

摘　　要：为了提高磁选机的分选效果,在分析磁选机分选原理的基础上,运用计算机软件对磁选机磁系进行仿真及优化。结果表明:减小磁极间隙及在选别区主磁极增加钕铁硼强磁条能大幅增加磁系的磁场强度及比磁力,可使磁场作用深度增加约7~8mm,处理量增加约21%。磁选机磁系的仿真及优化为高效磁选机的开发提供了有益参考。For enabling the magnetic separator to attain a higher recovery efficiency,following an analysis of the working principle of the separator,the simulation is made of the separator's magnetic system using computer software for its optimization.Result of simulation shows that reduction of the gap between mag-netic poles and addition of neodymium-iron-boron(NdFeB)high-intensity magnetic strips at the main poles in the separation area can lead to significant increase of the magnetic field intensity and specific magnetic force,an increase of magnetic field action depth by 7~8 mm and a rise of the separator's trea-ting capacity by around 21%.The study provides a useful reference for the development of high-efficien-cy magnetic separator.

关 键 词：磁选 磁选机磁系 磁极间隙 磁场强度 比磁力 

分 类 号：TD944[矿业工程—选矿]