周向挤压磁系磁选机的研究与应用  

Research and Application of Circumferential Extrusion Magnetic System Separator

作　　者：冯丽丽 成磊 王天歌 郑诏星 刘之能 FENG Lili;CHENG Lei;WANG Tiange;ZHENG Zhaoxing;LIU Zhineng(BGRIMM Machinery&Automation Technology Co.,Ltd.)

机构地区：[1]北矿机电科技有限责任公司

出　　处：《现代矿业》2022年第8期202-205,217,共5页Modern Mining

摘　　要：针对我国细粒弱磁性铁矿石比磁化系数极低,常规强磁选技术夹杂率高的难题,研究了新型永磁周向挤压磁系的结构,探讨了圆周交替磁极磁路中磁力关系模型,将三面轴向挤压磁路扩展至圆周挤压磁路,建立高磁力、可实现高速磁翻转的周向挤压磁路模型,并开发了周向挤压磁路的永磁强磁选机,并通过配制矿物和实际矿物的分选试验进行了选别效果验证,为实现弱磁性矿物高精度分选奠定了技术基础。In view of the problem that the specific magnetization coefficient of fine-grained weak magnetic iron ore in China is very low and the inclusion rate of conventional high-intensity magnetic separation technology is high,the structure of a new type of permanent circumferential extrusion magnetic system was studied.The magnetic force relationship model in the circumferential alternating magnetic pole magnetic circuit was discussed.The three-sided axial extrusion magnetic circuit was extended to the circumferential extrusion magnetic circuit,and the circumferential extrusion magnetic circuit model with high magnetic force and high-speed magnetic flip was established.The permanent magnet high-intensity magnetic separator with circumferential extrusion magnetic circuit was developed.The separation effect was verified by the separation test of prepared minerals and actual minerals,which lays a technical foundation for the high-precision separation of weak magnetic minerals.

关 键 词：周向挤压磁系 弱磁性铁矿石 磁翻转 

分 类 号：TD457[矿业工程—矿山机电]