Super-high bed sintering for iron ores:behaviors,causes and solutions of horizontal segregation on strand  

作　　者：Liang-ping Xu Hui-bo Liu Zhong-lin Dong Qiang Zhong Yu-chao Zhao Guang-hui Li 

机构地区：[1]School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,Hunan,China

出　　处：《Journal of Iron and Steel Research International》2024年第7期1590-1596,共7页钢铁研究学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No.52274290);the Basic Science Center Project for the National Natural Science Foundation of China (No.72088101).

摘　　要：Horizontal segregation has been a constraint to the development and application of super-high bed sintering.To eliminate the horizontal segregation of super-high bed sintering,several typical sintering machines were sampled and analyzed,and theoretical calculation was made to compare the bed depth and their differences in different areas within the mixture bin.Then,solutions were proposed and applied to a 265 m^(2) sintering machine.The results showed that the horizontal seg-regation of the 265 m^(2) sintering machine was dominated by particles larger than 8 mm with horizontal segregation degree of 0.48,while 360 and 550 m^(2) sintering machines were affected by 5-8 mm and 1-3 mm particles with horizontal segregation degree of 0.27 and 0.31,respectively.Causes analysis indicated the different segregation distribution results from the matching of the bed depth of each area within the mixture bin.Finally,the horizontal segregation degree not larger than 0.06 was achieved by optimizing the time parameters and the division of three zones on the 265 m^(2) sintering machine.

关 键 词：Super-high bed sintering Horizontal segregation Feeder Particle distribution Agglomeration 

分 类 号：TF046.4[冶金工程—冶金物理化学]