- Title
- DEM analysis of granule size segregation in iron ore sintering
- Creator
- Li, Chengzh; Honeyands, Tom; O'Dea, Damien; Moreno-Atanasio, Roberto
- Relation
- 8th International Congress on the Science and Technology of Ironmaking (ICSTI 2018). 8th International Congress on the Science and Technology of Ironmaking Proceedings (Vienna, Austria 25-28 Sep 2018) p. 140-146
- Publisher
- The Austrian Society for Metallurgy and Materials
- Resource Type
- conference paper
- Date
- 2018
- Description
- Size segregation of the iron ore granules packed on a sinter strand has a significant influence on the green bed permeability. For a defined granule size distribution, it is possible to increase the level of size segregation through adjusting the operating parameters in the strand feeding process. In this paper, a numerical study was carried out using a 3-D model developed by discrete element method (DEM) to investigate the effect of feed rate on the level of granule size segregation down the bed. Based on the simulation results, it was concluded that the level of vertical size segregation decreased with the increase of feed rate. This negative correlation was thought to be caused by the intensification of avalanching in the green bed. The corresponding experiments were also carried out to validate the DEM model. The comparison showed agreement in the change of granule size distribution down the bed with increasing feed rate, although the simulated size distribution was coarser compared to the experimental one.
- Subject
- DEM; size segregation; voidage distribution; sintering; green bed; iron ore granules
- Identifier
- http://hdl.handle.net/1959.13/1420558
- Identifier
- uon:37607
- Language
- eng
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