周期式高梯度磁选机线圈的计算机模拟分析

金属矿山 ›› 2016, Vol. 45 ›› Issue (04): 114-117.

周期式高梯度磁选机线圈的计算机模拟分析

李作敏^1,2,3，冯安生^1,2，张颖新^1,2，程晓峰^1,2，于岸洲^1,2

1.中国地质科学院郑州矿产综合利用研究所，河南郑州 450006；2.国家非金属矿资源综合利用工程〖〗技术研究中心，河南郑州 450006；3.中国地质科学院研究生部,北京 100037

出版日期:2016-04-15 发布日期:2016-08-16
基金资助:
基金项目中国地质大调查项目（编号：12120113088300）。

Computer Simulation Analysis on Cycle Type High Gradient Magnetic Separator Coil

Li Zuomin^1,2,3，Feng Ansheng^1,2，Zhang Yinxin^1,2，Cheng Xiaofeng^1,2，Yu Anzhou^1,2

1.Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,CAGS,Zhengzhou 450006，China；2.China National Engineering Research Center for Utilization of Industrial Minerals，Zhengzhou 450006,China；3.Graduate School of Chinese Academy of Geological Sciences,Beijing 100037，China

Online:2016-04-15 Published:2016-08-16

摘要/Abstract

摘要： 周期式高梯度磁选机所用磁介质激磁线圈长度与分选空间高度的关系对分选空间磁场强度的分布影响很大，合适的激磁线圈长度与分选空间高度的比例可以提高磁性矿物回收率、降低选矿能耗。采用ANSYS软件分析了长线圈、短线圈对分选空间磁场强度、磁场梯度、磁场力的影响，结果表明：长线圈所产生的磁场强度分布不均匀，短线圈所形成的磁场强度较均匀；当背景磁感应强度小于1.0 T时，长线圈产生的磁场梯度大于短线圈，当背景磁感应强度大于1.0 T时，两种线圈的磁场梯度都趋于稳定；背景磁感应强度相同时，长线圈产生的磁场力大于短线圈。长线圈产生的磁场有利于弱磁性矿物的选别，短线圈产生的磁场有利于非金属矿物的除杂。长线圈产生的磁场强度较强的区域集中在筒柱的中间位置以及距离分选空间较近的磁极头处；短线圈产生的磁场强度较强区域集中在筒柱与线圈交汇处，短线圈分选空间的磁场强度云图中磁场强度分布较均匀，与测得的磁感应强度变化趋势相一致。

关键词: 周期式高梯度磁选机, 磁场强度, 磁场梯度, 磁场力

Abstract: The relationship of the excitation coil of magnetic medium and the length of the separation space height of cycle type high gradient magnetic separator can greatly influence on the distribution of magnetic field intensity.The ratio of excitation coil length and height of the appropriate separation space can improve the recovery rate of magnetic minerals and reduce the energy consumption.The effect of long coil and short coil on the magnetic field strength，magnetic field gradient and magnetic force in the separation space was analyzed using ANSYS software，The results indicated that magnetic field intensity is not uniformity in sorting space of long coil，magnetic field intensity is uniformity in sorting space of short coil.When the background magnetic induction intensity is less than 1.0 T，long coil magnetic field gradient is greater than the short coil magnetic field gradient，when the background magnetic induction intensity is greater than 1.0 T，two kinds of coil magnetic field gradient will go stable.The background magnetic field intensity of the two coil is same，the magnetic force produced by long coil is greater than the short coil.Magnetic field produced by long coil is beneficial for low intensity magnetic minerals separation, while for short coil is beneficial for impurities removal of non-metallic minerals.The strong area of magnetic field intensity produced by the long coil is concentrated in the middle position of the cylinder column and the magnetic pole head of the distance separating space；the strong magnetic field intensity region generated by the short coil is concentrated in the intersection of the cylinder and the coil，the magnetic field intensity strength of the magnetic field nephogram of short coil separation space substantially uniform，similar with the change trend of the measured magnetic induction intensity.

Key words: Cycle type high gradient magnetic separator, Magnetic field intensity, Magnetic field gradient, Magnetic field force

李作敏, 冯安生, 张颖新, 程晓峰, 于岸洲. 周期式高梯度磁选机线圈的计算机模拟分析[J]. 金属矿山, 2016, 45(04): 114-117.

LI Zuo-Min, FENG An-Sheng, ZHANG Ying-Xin, CHENG Xiao-Feng, YU An-Zhou. Computer Simulation Analysis on Cycle Type High Gradient Magnetic Separator Coil[J]. Metal Mine, 2016, 45(04): 114-117.

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