Abstract:The proportion of self-produced iron concentrate has reached over 85% with the commission of Lvliang iron mine at TISCO. Lvliang self-produced iron concentrate has good feature with ultra fined size, nearly 96% of the material was less than 0.045mm. It is difficult to produce high qualified sinter for 4350m3 BF with the sintering bed height of 730mm. The sinter quality would get deteriorated because of the worsening permeability of sintering blends, and there would be limited adjustment scope for proportioning since the decreasing use of imported iron ore. The sinter pot experiments were performed at the technology center in order to acquire sintering performances of Lvliang iron concentrate and provide technical support for future production. The results indicate that the technical indices deteriorated with the increase of proportion of iron concentrate. When iron concentrate accounted for 70%, sintering process became very slow. The sintering process even stopped with 100% iron concentrate. Finally, the analysis was carried and the main parameters affecting sinter process were found such as strengthening granulation, optimizing grain size and enhancing basicity.
贺淑珍,冯焕林. 高比例精矿粉对烧结的影响分析及强化措施探讨[J]. 中国冶金, 2014, 25(07): 27-31.
HE Shu-zhen,FENG Huan-lin. Anylysis of the Effects of High Proportion Iron Concentrate on Sinter Quality and Discussion of Strengthening Measures. China Metallurgy, 2014, 25(07): 27-31.