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通过烧结杯试验,研究不同配碳量对含钛型钒钛烧结矿质量的影响规律。结果表明,随配碳量增加(2.8~4.0),含铬型钒钛烧结矿的液相生成量增加,垂直烧结速度、烧成率降低,成品率先上升后降低;不同配碳量的含铬型钒钛烧结矿的矿物组成基本相同,含铁矿物均以磁铁矿和赤铁矿为主,粘结相为铁酸钙、硅酸盐、玻璃质等;随配碳量上升,磁铁矿、硅酸盐和钙钛矿含量增加,赤铁矿和铁酸钙含量减少;随配碳量增加,含铬型钒钛烧结矿的转鼓强度先上升后下降,还原粉化性能上升,还原性下降,烧结矿适宜配碳量为3.6%。
Through the sinter cup test, the effect of different carbon contents on the quality of titanium-containing vanadium-titanium sinter was studied. The results show that with the increase of carbon content (2.8 ~ 4.0), the liquid phase yield of vanadium-titanium-bearing chromium-bearing type titanium ore increases, the vertical sintering rate and firing rate decrease, the finished product ratio first increases and then decreases; Type vanadium titanium sinter mineral composition is basically the same, the iron minerals are mainly magnetite and hematite, the binder phase is calcium ferrite, silicate, vitreous, etc .; with the carbon content increases, the magnetic The contents of iron ore, silicate and perovskite increase, and the contents of hematite and calcium ferrite decrease. With the increase of carbon content, the drum strength of Cr-containing vanadium-titanium sinter increases first and then decreases, and the reduction pulverization performance increases , Reduce the reduction of sinter suitable carbon content of 3.6%.