2019 Pittsburgh AISTech

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Micropelletization of Ironmaking and Steelmaking Dust and Recycling of the Micropellets (Room 401)

08 May 19
8:00 AM - 8:30 AM

Tracks: Environmental/Energy & Utilities

Various dusts are constantly generated in the ironmaking and steelmaking processes. The collected dusts can cause secondary emissions while they are transported, stored and utilized. The fine dusts can also cause difficulties in recycling. ArcelorMittal has studied mitigation of the fine dust issue by micropelletization. Various micropelletization devices, including disc pelletizer, rotary kiln, high shear mixer, deep drum pelletizer, intensive mixer and pin mixer, were studied and evaluated. Preliminary results show that a high shear mixer might provide the best techno-economic returns. Such a facility is planned for a late Q1 2019 start-up at ArcelorMittal Indiana Harbor.