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现代矿业 ›› 2019, Vol. 35 ›› Issue (04): 133-135.

• 材料·装备 • 上一篇    下一篇

新型粉矿风力干式磁选机的研制与应用研究

王顺,辛青   

  1. 山东华特磁电科技股份有限公司
  • 出版日期:2019-04-25 发布日期:2019-06-04

Development and Application Research of a New Type of Dry Magnetic Separator for Pulverized Ore

Wang Shun,Xin Qing   

  1. Shandong Huate Magnet Technology Co.,Ltd.
  • Online:2019-04-25 Published:2019-06-04

摘要: 为了解决干旱缺水地区磁性矿物的富集问题,研制了具有大包角、多磁极、高磁场强度、高转速的粉矿风力干式磁选机,可实现5~0 mm磁铁矿粉矿的干式预选及细粉状磁铁矿的高效干式磁选。试验研究表明:①对Fe品位为51.75%、粒度为-1 mm、含水量3%~5%的南非KBH脱磷产品,FX0665型粉矿干式风力磁选机1次选别,可获得Fe品位为61.05%、回收率为90.85%的铁精矿。②新疆哈密某铁矿-2 mm样(Fe品位为60.76%)采用FX0665型粉矿干式风力磁选机干选,可获得Fe品位达64.53%、回收率达95.02%精矿;矿样磨至-0.074 mm占70%情况下进行干选,可获得Fe品位达68.10%、回收率达95.70%的精矿。③Fe品位为15.31%的新疆八钢某铁尾矿经FX0665型粉矿风力干式磁选机干选,可获得Fe品位为52.31%、回收率为12.71%的精矿。试验研究表明,粉矿干式风力磁选机对不同矿石的适应能力较强,是干旱缺水地区磁性矿物富集的高效设备。

关键词: 粉矿风力干式磁选机, 磁铁矿石, 干式预选, 干旱缺水地区

Abstract: In order to solve the problem of enrichment of magnetic minerals in dry and water-deficient areas,a new kind of air force dry magnetic separator for powdery minerals is developed,with large wrap angle,multiple magnetic poles,high magnetic field strength and high rotary speed,which can realize dry pre—separation of 5~0 mm powdery magnetite and efficient dry magnetic separation of fine powdered magnetite.The test research shows that:① For the de—phosphorization product from KBH of South Africa with Fe grade of 51.75%,particle size of -1 mm and moisture content of 3% to 5%,through one process of FX0665 type air force dry magnetic separator for powdery minerals,iron concentrate with Fe grade of 61.05% and recovery of 90.85% is obtained.② For the -2 mm sample (Fe grade 60.76%) of an iron ore from Hami,Xinjiang,through FX0665 type air force dry magnetic separator for powdery minerals,iron concentrate with Fe grade of 64.53% and recovery of 95.02% is obtained; after the samples are ground to 70% -0.074 mm and through dry magnetic separation,iron concentrate with Fe grade of 68.10% and recovery of 95.70% is obtained.③ For an iron ore tailing from Bagang of Xinjiang with Fe grade of 15.31%,through FX0665 type air force dry magnetic separator for powdery minerals,iron concentrate with Fe grade of 52.31% and recovery of 12.71% is obtained.The testwork research shows that the air force dry magnetic separator for powdery minerals has strong adaptability to different ores,and it is an efficient equipment for enriching magnetic minerals in dry or water—deficient areas.

Key words: Air force dry magnetic separator for powdery minerals, Magnetite ore, Dry pre—separation, Dry and water—deficient areas