铁矿粉基础性能对烧结性能影响的研究
Investigation into the Effect of Fundamental Characteristics of Iron Ore Fines on Their Sintering Performance

作者: 王纪元 :宝钢股份有限公司制造管理部,上海;

关键词: 铁矿粉基础性能烧结高温性能烧结矿转鼓强度烧结利用系数Fundamental Characteristics of Iron Ore Fines Sintering High Temperature Properties Sinter Drum Strength Sintering Productivity

摘要:
铁矿粉基础性能对其制粒、烧结及烧结矿质量具有重要影响,研究两者间的关系,对优化配矿,从而提高烧结矿产量、改善烧结矿质量具有重要意义。本文对铁矿粉新品种进行了基础性能与其烧结性能关系的研究。烧结矿转鼓强度与四项高温反应性能指标之间不存在明显的相关性;烧结矿产量与粘结相自身强度及液相流动性存在一定的正相关性。烧结矿还原性高,低温还原粉化率高,两者呈现正相关。烧结矿的还原性及低温还原粉化率与四项高温性能之间也不存在明显的相关性。

Abstract: The fundamental characteristics of iron ore fines largely affect their granulation behavior, sintering performance and even the quality of final sinter product. Therefore, it is of significant importance to investigate the internal relationship between fundamental characteristics and sintering performance for optimizing ore blends, increasing the sinter output and improving the quality of sinter product. In this paper, the relevance of fundamental characteristics of a series of new iron ore fines to their sintering performance was studied. The results show no obviously good correlation can be found between the conventional four high temperature sintering characteristics (i.e., assimilation characteristic, self-bonding strength characteristic, fluidity and formation characteristic of SFCA) of iron ore fines and tumble index (TI) of their single ore sinter, but there is to some extent positive correlation between the productivity of sinter and the self strength of bond-ing phases and fluidity properties of iron ore fines. Besides, positive relationship can also be ob-served between the reduction index (RI) and reduction degradation index (RDI) of sinter. However, both of which also show poor correspondence to the four high temperature sintering characteristics.

文章引用: 王纪元 (2016) 铁矿粉基础性能对烧结性能影响的研究。 冶金工程, 3, 79-86. doi: 10.12677/MEng.2016.32012

参考文献

[1] 吴浩方, 贾彦忠, 梁德兰. 几种常见进口铁矿石的烧结基础性能[J]. 钢铁, 2011, 46(7): 10-13.

[2] 肖志新, 陈令坤, 贾斌. 武钢配加进口磁铁矿的烧结基础特性试验研究[J]. 钢铁研究, 2012, 40(4): 7-10.

[3] 吴胜利, 刘宇, 杜建新, 米坤, 林鸿. 铁矿石的烧结基础特性之新概念[J]. 北京科技大学学报, 2002, 24(3): 254- 257.

[4] 刘东辉, 吕庆, 孙艳芹, 邹雷雷, 刘然. 铁矿粉基础特性对烧结矿性能的影响[J]. 钢铁研究学报, 2013(11): 29-34.

[5] 闫炳基, 张建良, 姚朝权, 孙海宁, 张亚鹏, 李克江. 基于铁矿粉液相生成特性互补优化配料模型[J]. 钢铁, 2015(6): 40-45.

[6] 傅菊英, 姜涛, 朱德庆. 烧结球团学[M].中南工业大学出版社, 1997.

[7] 朱德庆, 钟洋, 潘建. 分流预成型强化制粒改善镜铁矿粉烧结性能[J]. 工程科学学报, 2015(8): 984-993.

[8] 胡志清, 潘建, 朱德庆, 岳守艳. 铁精矿原料特性及其对成球性能的影响[J]. 烧结球团, 2013(4): 42-45, 49.

分享
Top