碳含量对钒钛磁铁矿烧结的影响

Effects of Carbon Content on Sintering Performance of Vanadium Titanium Magnetite

为了探讨配碳量对钒钛烧结矿物理及冶金性能的影响,对配碳比为2.5%、2.75%、3.0%、3.25%、3.5%、3.75%的钒钛烧结矿进行了强度、成品率、粒度组成及冶金性能的研究。结果表明：配碳量增加时,钒钛磁铁矿烧结成品率提高,小粒级所占比例降低,烧结矿RDI＋3.15提高,但是烧结矿转鼓强度先变好后变坏,还原性RI变差;而钒钛磁铁矿烧结时,要使烧结矿具有较好的转鼓强度及冶金性能,适宜的配碳量约为3.00%-3.25%,FeO含量约为10%-11%。

In order to understand the impact of carbon ratio on metallurgical properties and physical effects of vanadium titanium sinterthe strength,yield and particle size composition and metallurgical properties of resulting vanadium titanium sinter at various carbon ratio of 2. 5%,2. 75%,3. 0%,3. 25%,3. 0%,3. 75% had been researched in this paper. It is found out that increasing carbon ratio leads to increase yield of vanadium titanium magnetite sinter,while the proportion of small size sinter decrease,sinter RDI＋ 3. 15 increase,but the sinter drum strength firstly increased then decrease,reducing RI variation. In order to achieve good drum strength and metallurgical properties for vanadium titanium magnetite sinter,suitable carbon ratio is about 3. 00% - 3. 25% and Fe O content is about 10% - 11%.