普矿配加对钒钛烧结矿质量的影响

 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。

Influence of the addition of ordinary ore on vanadium-titanium sinter properties

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 mm and softening properties were determined and analyzed. The results show that the quality of V- Ti sinter is poor，in particular RDI>3. 15 mm with 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 SiO2，MgO 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 mm with 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.