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 m2 sintering machine. The results showed that the horizontal segregation of the 265 m2 sintering machine was dominated by particles larger than 8 mm with horizontal segregation degree of 0.48, while 360 and 550 m2 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 m2 sintering machine.
Abstract: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 m2 sintering machine. The results showed that the horizontal segregation of the 265 m2 sintering machine was dominated by particles larger than 8 mm with horizontal segregation degree of 0.48, while 360 and 550 m2 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 m2 sintering machine.
Liang-ping Xu1,Hui-bo Liu1,Zhong-lin Dong1, et al. Super-high bed sintering for iron ores: behaviors, causes and solutions of horizontal segregation on strand[J]. Journal of Iron and Steel Research International, 2024, 31(07): 1590-1596.