白马钒钛磁铁矿提质降杂研究及工业实践  

Research and industrial practice on improving quality and reducing impurities of Baima vanadium-titanium magnetite

作　　者：刘志雄 Liu Zhixiong(Design and Research Institute of Mining Co.,Ltd.,Pangang Group,Panzhihua 617063,Sichuan,China)

机构地区：[1]攀钢集团矿业有限公司设计研究院,四川攀枝花617063

出　　处：《钢铁钒钛》2022年第3期104-110,共7页Iron Steel Vanadium Titanium

摘　　要：为进一步提高钒钛铁精矿品位,实现高炉精料方针,针对攀西白马矿区某选矿厂生产的钒钛磁铁精矿开展了工艺矿物学研究,认为钛磁铁矿中客晶矿物的存在影响了铁精矿的理论品位,是钒钛铁精矿品位难以提高的主要原因。通过实验室试验和工业试验,提出采用提高磨矿细度进行深度选别技术路线可以有效降低铁精矿中SiO_(2)、MgO、Al_(2)O_(3)等元素含量,从而进一步提高其铁精矿品位。研究成果在白马矿区某选矿厂进行了工业应用,将钒钛铁精矿品位由55%提高至57%以上,有效地提高了冶炼系统高品位钒钛铁精矿的保供能力,提升钢铁全产线的经济效益,为攀西地区钒钛磁铁矿精矿品位的提高提供了技术路线。In order to further improve the grade of vanadium-titanium-iron concentrate and realize the policy of blast furnace concentrate, the process mineralogy of vanadium-titanium magnetite concentrate produced by a concentrator in Baima mining area of Panxi was studied. It is pointed out that the presence of guest minerals in titanomagnetite affects the theoretical grade of iron concentrate, which is the main reason why it is difficult to improve the grade of vanadium titanomagnetite concentrate. Through laboratory and industrial tests, it is proposed that the content of SiO_(2), MgO and Al_(2)O_(3) in iron concentrate can be effectively reduced by increasing the grinding fineness for deep separation, and the grade of iron concentrate can be further improved. The research results have been applied to a concentrator in Baima mining area and the grade of V-Ti-Fe concentrate has been increased from 55% to over 57%,thus effectively increasing the supply and maintenance capacity of high-grade V-Ti-Fe concentrate in smelting system, improving the economic benefit of the whole steel production line, which provides a technical route for improving the grade of vanadium-titanium magnetite concentrate in Panxi area.

关 键 词：钒钛磁铁矿 工艺矿物学 钒钛铁精矿 品位 

分 类 号：TD924[矿业工程—选矿]