摘要
通过烧结杯制备了全钒钛以及配加一定量印粉(YD)、马粉(MF)及自产普粉(ZF)的钒钛烧结矿,并对其烧结速度、烧损率、成品率、转鼓强度、RDI>3.15 mm以及软化性质进行了测定及分析。试验结果表明:全钒钛烧结矿质量较差,尤其是RDI>3.15 mm过低,产率较低,需配加普矿提高其质量及产量。选择普粉时应兼顾其制粒性以及化学成分等,应保证烧结矿中一定量的SiO2、MgO以及Al2O3不宜过高。配加3种普粉均有利于提高烧结速度及提高软化区间,配加自产粉有利于提高钒钛烧结矿的转鼓强度(64.25%)以及RDI>3.15 mm,但降低了成品率;配加印粉有利于提高转鼓强度、成品率,但是降低了RDI>3.15 mm;配加马粉有利于提高强度和RDI>3.15 mm,但是其铁品位低、烧损大。配加13%(印粉+马粉+自产)钒钛烧结矿的指标优于配加6.5%(印粉+马粉+自产)的钒钛烧结矿。
Vanadium-titanium（ V-Ti） sinter,V-Ti sinter with YD ore,MF ore,ZF ore and mix ore（ YD ＋ MF ＋ ZF）addition,respectively,were produced by sinter pot. In addition,sintering rate,burning loss,yield（ 5 mm）,sinter strength（ TI）,RDI 3. 15 mmand softening properties were determined and analyzed. The results show that the quality of VTi sinter is poor,in particular RDI 3. 15 mmwith a lower productivity. It is beneficial to improve quality and productivity by adding ordinary ores in V-Ti sinter mixture. The granulation properties and chemical composition,etc. should be considered together to ensure a certain content of Si O2,Mg O and not too high-Al2O3 content with high permeability in sinter mixture. With YD,MF,ZF,mix（ YD ＋ MF ＋ ZF） ore addition,sintering rate and softening properties are all improved.V-Ti sinter with ZF addition has the highest TI（ 64. 25%） and a higher RDI 3. 15 mmbut a lower yield. V-Ti sinter with YD addition has a higher TI（ 64. 21%） and a higher yield but the lowest RDI 3. 15 mm. V-Ti sinter with MF addition improves TI and RDI 3. 15 mmwith a higher burning loss and a lower-grate iron. The quality and productivity of V-Ti sinter with 13%（ YD ＋ MF ＋ ZF） addition are better than that with 6. 5%（ YD ＋ MF ＋ ZF） addition.
出处
《钢铁》
CAS
CSCD
北大核心
2015年第8期10-15,共6页
Iron and Steel
基金
国家高技术研究发展(863)计划资助项目(2012AA062302
2012AA062304)
国家自然科学基金资助项目(51090384
51174051)
科技部重大国际合作资助项目(2012DFR60210)
关键词
钒钛粉
烧结
强度
RDI
铁矿粉
vanadium and titanium magnetite ore
sinter
strength
RDI
iron ore
