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为了探索在现有原料条件下不同w(TiO_2)对高钛型磁铁矿烧结性能的影响,采用粒度组成与攀精矿相近的钛精矿改变其w(TiO_2),消除了烧结料粒度变化对试验结果的影响,真实反映w(TiO_2)的影响规律。通过试验得出,在保持烧结矿高碱度与其他成分基本不变条件下,当烧结矿w(TiO_2)为6%~10%时,随着w(TiO_2)增加,混合料初熔和熔化温度均上升,烧结矿强度和成品率下降,低温还原粉化率上升,还原性降低,熔滴性能变差,储存性能变化不大;钛赤铁矿、铁酸钙质量分数减少,钛磁铁矿以及含钛矿物钙钛矿、钛辉石、钛榴石质量分数增加;烧结矿的孔洞增加,矿物形态和结构变差。
In order to explore the influence of different w (TiO 2) on the sintering properties of high-titanium magnetite under the condition of existing raw materials, titanium (TiO 2) with similar particle size composition and that of clinker ore was used to change the particle size of the sintered material The impact of the test results, reflect the real impact of w (TiO 2) law. The results show that when the content of w (TiO 2) increases from 6% to 10%, the mixture melts and melts The temperature increases, the sinter strength and the finished product rate decrease, the low-temperature reduction and pulverization rate increases, the reducibility decreases, the droplet property deteriorates, the storage performance does not change much; the content of titanium hematite and calcium ferrite decrease, The ore and titanium-bearing minerals such as perovskite, titanaugite and garnet increase in mass fraction. The porosity of sinter increases and the morphology and structure of minerals deteriorate.