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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 17b
SUMMARY:Increase EZDK flat steel plant productivity by installing new chemical energy module M-One at EAF
DESCRIPTION:EZDK Flat Steel Plant (FSP) installed in Y1999 consisting of steel making SMP (1 arc furnace EAF,1 Ladle furnace LMF) and compact strip plant CSP (thin slab caster TSC, hot strip mill HSM), plant design capacity 1.0 MTPY HRC producing low Carbon, different ranges of Mn steel grades, Aluminum killed clean steel, thickness 1.0~14 mm, widths 900~1600mm.
Aiming reaching 1.150 MTPY HRC, defining such one FSP line production bottle neck is mandatory especially after CSP upgrading in Y2017 after increasing TSC casting speeds for different casting widths So, SMP(EAF) is identified as the bottle neck due to prolong tap-tap time TTT (56 min./heat), high EAF energy consumption (575 kWh/t MS) which limit productivity at higher casting speed (>4.5 m/min.) for 1500 mm casting width.
Decreasing EAF power on time, energy consumption (productivity driven factors) are put as a target which can be achieved by introducing new chemical energy modules for C-O in EAF with low project budget keeping the rest of EAF configuration such as transformer as increasing transformer capacity ‘increasing input electrical power ‘will require consecutive additional changes in EAF upper& lower shell, fume extraction system with huge investment budget.
An Italian company ‘MORE’ offered a new module of C-O in EAF called ‘M-One’ which has the feature of Carbon, Oxygen & natural gas injection in one coherent jet giving higher efficiency of reaction points between C-O with equal uniform distribution of slag foaming around EAF, giving better Oxygen penetration into molten steel giving higher slag foaming index moreover, burner mode of M-One enables faster scrap melting time.
After successful installation & commissioning of M-One in Nov.Y2022, very promising results are obtained in productivity (+5%), power on time (-11%), turnaround time (-15%), Tap-Tap time (-12%), energy consumption (-11%), C injection consumption (-30%), EAF electrode consumption (-8%) and EAF refractory consumption (-12%).  
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DTSTART:20230615T115000
DTEND:20230615T121000
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