AISTech 2017

Implementation of Improved Coal Bulk Density Strategy at ArcelorMittal Dofasco (Room 209B)

08 May 17
9:30 AM - 10:00 AM

Tracks: Coke Plant Maintenance & Refractories

After laboratory studies on the effect of coal type, coal moisture and oil additions, modifications were made to the ASTM D291 procedure to allow for improved coal flow with coal moistures greater than 7%. This allowed operators to measure changes in coal bulk density that were not detected before. Also, routine coal moisture measurements were implemented with bulk density measurements at coal handling to aid operators on when to change oil amounts. With these improvements, new coal bulk density targets were set and adhered to. As a results, less oil is now required to maintain coal bulk density at the new setpoints. New oil sprays were also installed to improve oil to coal contact to allow for further improvements.