New digital 3D model of the Grate-Kiln pelletizing process for reduced energy usage and emissionsProject leaderSofia Larsson, Luleå University of Technology
PartnersLKAB, Taoshi Energiteknik AB
Project duration2017 - 2020
Goals of the project
The main goal is to develop a new digital 3D model that can be used to control and optimize the flow in rotary kilns for reduced energy consumption and environmental impact and increased pellet quality.
Additional goals are:
A general simulation methodology that can be used on any complex system involving fluid flow.
Increased understanding of the pelletizing process regarding at least three fluid mechanical related phenomena.
A demonstration of how advanced experimental techniques can be used in harsh industrial environments.
Results so far
Kiln hood
Results so far
Experimental combustion furnace (ECF)
Results so far
Secondaryflow
Secondaryflow
Secondaryflow
Secondaryflow
Side view
Front view
Single jet, no outerstream
Coaxial jet with outer
stream
Secondary flow 50/50 Secondary flow 70/30
Time-averaged results in the vertical center plane
Mean image Root mean squarefluctuations
Mean image Root mean squarefluctuations
Increasedvelocity ratio
Upcoming activities and next step
Refine the simulations Scale up the model Transfer it to an open source code
Finish and publish the obtained results
Mining innovation for a sustainable future