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VERSION:2.0
METHOD:PUBLISH
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ORGANIZER;CN='8th ECIC & 9th ICSTI 2022':MAILTO:info@ecic-icsti.com
LOCATION:Room „Lloyd“
SUMMARY:Challenges and improvements in the second campaign of ArcelorMittal Tubarão Blast Furnace #3
DESCRIPTION:This work describes the history and improvements of the second campaign of ArcelorMittal Tubarão Blast Furnace #3 that began on July 2014. There was a blowdown in April 2020 due to crisis period but returned to operate in October 2020 (same campaign without hearth repair). With Inner Volume of 3617 m³, 4 tap holes, 12,5m of hearth diameter and 34 tuyeres, blast furnace process and equipment were improved in several steps. After blow in on 2014, high pulverized coal injection project has started, decreasing total coke rate from 350 kg/t in 2014 to below than 290 kg/t. During the coke rate evolution, many challenges were faced to sustain blast furnace stability, for example: hearth temperature control, raw material quality worsening, jumbo cooling damage, equipment availability, blowdown with salamander tapping and blow in with remaining salamander. To overcome those challenges, developments such as burden distribution improvements, burden segregation tests, process control, integrated management and raw materials quality adjustments. This paper presents highlights of main events and developments of blast furnace #3 second campaign.
CLASS:PUBLIC
DTSTART:20220830T160000
DTEND:20220830T162500
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