Print Email Facebook Twitter Granular Flow Modeling of Galvanized Steel Scrap Injection into the HIsarna Iron-Making Reactor Title Granular Flow Modeling of Galvanized Steel Scrap Injection into the HIsarna Iron-Making Reactor Author Hosseini, A. (TU Delft Team Yongxiang Yang) Georgakopoulos, E. (TU Delft Team Yongxiang Yang) Dihman, Vinod (Tata Steel) Hage, Johannes (Tata Steel) Meijer, Koen (Tata Steel) Zeilstra, Christiaan (Tata Steel) Offerman, S.E. (TU Delft Team Erik Offerman) Yang, Y. (TU Delft Team Yongxiang Yang) Date 2022 Abstract Galvanized steel scrap flow and injection into the HIsarna reactor are investigated using discrete element method (DEM). The scrap particle is fed into the reactor through an inclined chute and hits the slag surface where the zinc content is evaporated and solid particles melt. A DEM model is setup and validated using experimental data obtained from the exact plant-scale chute geometry and scrap particles. Using the DEM model, the effect of chute inclination, injection elevation, injection mode (batch and continuous), batch size, and flowrate on particle distribution and exerted pressure on the slag surface are investigated. It is found that continuous mode of injection is the most suitable method to increase the spread of particles and also to reduce the exerted pressure on the slag surface. Placing dent-like obstacles at the tip of the chute significantly increases the impact area, especially for batchwise injection, thus reducing force and pressure on the slag surface that minimizes the risk of liquid splash. Larger particle impact area is also beneficial to obtain higher zinc evaporation rate from particle surface and also to minimize the slag surface temperature disturbance. Subject discrete element methodgranular flow modelingHIsarna iron productionsteel scrap chutesteel scrap flowability To reference this document use: http://resolver.tudelft.nl/uuid:a9060bb2-f9aa-4e0f-877e-272a426cebaf DOI https://doi.org/10.1002/srin.202200193 ISSN 1611-3683 Source Steel Research International, 93 (11) Part of collection Institutional Repository Document type journal article Rights © 2022 A. Hosseini, E. Georgakopoulos, Vinod Dihman, Johannes Hage, Koen Meijer, Christiaan Zeilstra, S.E. Offerman, Y. Yang Files PDF steel_research_internatio ... to_the.pdf 5.09 MB Close viewer /islandora/object/uuid:a9060bb2-f9aa-4e0f-877e-272a426cebaf/datastream/OBJ/view