Research of High Gradient Permanent Magnetic Drum Separator with Open Magnetic Circuit
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摘要:
以COMSOL仿真优化了开放磁系磁场力HgradH模型，设计了基于开放磁系小极面排斥磁极布置的强磁磁路结构，使筒表分选区磁场强度可达到800 mT以上，试验结果表明，与常规开放磁系永磁筒式磁选机相比，新型开放磁系永磁筒式强磁选机分选某细粒铬铁矿、钛铁矿，回收率分别提高了34.11%、16.99%，说明该新型磁选机更有利于细粒弱磁性矿物的回收。
Abstract:The model of HgradH represented magnetic force in open magnetic system is optimized with COMSOL. Based on open magnetic circuit, a high field strength magnetic circuit is created with small magnetic pole width and repelling magnetic pole arrangement. Magnetic field intensity of drum surface can reach at 800 mT. The experiment showed that this new permanent magnetic separator with high magnetic field strength can achieve a higher recovery of 34.11% and 16.99% when separating some chromite and ilmenite, than conventional open magnetic system permanent magnet drums type magnetic separator. It turns out that the original type magnetic separator is more suitable for separating fine grain chromite and ilmenite.
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表 1 国外某铬铁矿试验数据
Table 1. The test data of the some foreign chromite
试验设备 产品/% 产率/% Cr2O3品位/% Cr2O3回收率/% 排斥磁极永磁强磁选机 精矿 28.02 44.25 44.88 尾矿 71.98 21.16 55.12 给矿 100.00 27.63 100.00 常规开放磁系筒式磁选机 精矿 6.72 44.30 10.77 尾矿 93.28 26.43 89.23 给矿 100.00 27.63 100.00 
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表 2 承德地区某钛铁矿试验数据
Table 2. The test data of the some ilmenite from Chengde
试验设备 产品/% 产率/% TiO2品位/% TiO2回收率/% 排斥磁极永磁强磁选机 精矿 73.48 44.20 83.84 尾矿 26.52 23.60 16.16 给矿 100.00 38.74 100.00 常规开放磁系筒式磁选机 精矿 59.14 43.78 66.85 尾矿 40.86 31.42 33.15 给矿 100.00 38.73 100.00
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[1] 汪建新, 王浩, 王飞.永磁筒式磁选机开放式磁路的仿真分析[J].金属矿山, 2018(8):127-131. http://d.old.wanfangdata.com.cn/Periodical/jsks201808025
[2] 王芝伟, 宗金彪, 史佩伟, 等.粗粒分选大型磁选机的研制与工业试验研究[J].有色金属(选矿部分), 2013(S1):219-221. http://d.old.wanfangdata.com.cn/Periodical/ysjs-xk2013z1056
[3] 王常任.磁电选矿[M].北京:冶金工业出版社, 1986:142-153.
[4] 成磊, 尚红亮.混合型铁矿在开放磁路高梯度磁场中的磁场力分析与验证[J].有色金属(选矿部分), 2018(4):78-81. doi: 10.3969/j.issn.1671-9492.2018.04.016
[5] 王芝伟, 胡永会, 尚红亮, 等.干式筒式磁选机联用技术研究及实践[J].有色金属(选矿部分), 2018(2):82-86. doi: 10.3969/j.issn.1671-9492.2018.02.018
[6] 刘建国, 张军, 汤玉和.重、磁预选工艺在几种典型钛铁矿选矿工艺中的应用[J].矿产保护与利用, 2018(1):96-100. http://kcbh.cbpt.cnki.net/WKD/WebPublication/paperDigest.aspx?paperID=d64cab24-d6ed-48d7-a610-c9d304afb642
[7] 孟聪, 李丽匣, 申帅平, 等.某钛铁矿分级磁选分级浮选试验研究[J].矿产保护与利用, 2017(1):60-63. http://kcbh.cbpt.cnki.net/WKD/WebPublication/paperDigest.aspx?paperID=d1fec51f-ee4b-4d85-a127-eeb7ef1e4c01
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