December 2011 - SIMA

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IRON ORE PELLETS AS THE FUTURE METALLIC SOURCE FORSTEEL MAKING THROUGH INDUCTION FURNACE ROUTEINRODUCTION:-Rathindra N. Das, Sr. G.M. (Marketing) & D.S. Thakur, G.M. (QA)Monnet Ispat & Energy Ltd., RaipurWithin Steel Industry in India most of the growth in the last decade happened in Induction Furnace (I.F.) segmentdue to certain advantages like:uuuuuHigher electric efficiencyLower refractory costLess pollution troubleLess capital investmentLow technical complexityAll the above factors went technically in favor of IF. But the basic disadvantage in IF production process remainedas the limitation of refining scope within IF but, still achieved great success in serving the better part of thevibrant construction segment. But only paining aspect that continually pinched the IF industry is the dependencyon Raw material supply, wild fluctuation thereof and lacking other infrastructural supports and overall stability.CONTRIBUTION OF VARIOUS PROCESS IN STEEL MAKING IN INDIA (FY-10)Sl. No. Process % Overall Contribution World average1 Blast furnace/Basic oxygen route 47% 67%(BF/BOF)2 Induction melting furnace (IF) 27% (21.5 million MT)} 3 Electric Arc furnace (EAF) 26% (20.0 million MT) 31% (2% OHF)In the growth of steel industry in the last decade, themajor contributor was the induction furnace industry,which is presently having share of 27% (Fig.–1) ofthe total steel production. In fact, it would not be overstatement, if said that in the last five years, steelindustry might not have grown to the present capacityof 78 million MT without the exponential growth inDRI-IF steel making segment.Source : Ernst & Young Research ReportSource: E & Y Research DataFig.-1DECEMBER-<strong>2011</strong>/12
2.0 STEEL MAKING PROCESS AT MONNET, RAIPUR PLANT:RAW MATERIALSDRI/ PELLETS = 95%SCRAP = 5%Electric Power(Captive)➞➞ ➞ ➞INDUCTION FURNACES2 Furnaces = 8 MT Capacity2 Furnaces = 12 MT Capacity1 Furnaces = 18 MT CapacityLiquid Steel(Temp. – 1620-1650°C)(M.S. Grade)Rolling MillBeamsAnglesChannels➞➞Ferro Alloys +CPCContinuous CastingM/C 6M/11M diaConcast India make➞Billets / Blooms160x160 mm160x200 mm200x250 mmChallenges of Raw material in Future forsustained Growth of IF/EAF Industry:SPONGE IRON AS RAW MATERIAL FOR STEELMAKING:-Fig.-2Actually DRI emerged over time as the most usefulmetallic charge for IF/ EAF by pushing the scrapusage to secondary level and consequentially, DRIproduction increased considerably over the years inparallel with fast growth in IF/EAF industry particularlyin India and giving impetus to the world wide DRIindustry.DECEMBER-<strong>2011</strong>/13
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Page 5 and 6: Target Setting:The methodology for
Page 7 and 8: Energy conservation Opportunities i
Page 9 and 10: MXCOL ® : A BREAKTHROUGH IN COAL-B
Page 11 and 12: MIDREX ® Direct Reduction PlantThe
Page 16 and 17: Raw material availability:Basic raw
Page 18 and 19: ore also could be intended to gener
Page 20 and 21: AVERAGE PERFORMANCE PARAMETERS:Sl.
Page 22 and 23: CONCLUSION:The salient features of
Page 24 and 25: HARI MACHINES JOINS HANDS WITH RAFA
Page 26 and 27: Indian Reference of RafakoSA - Pola
Page 28 and 29: DECEMBER-2011/26
Page 30 and 31: e maintained while taking advantage
Page 32 and 33: Plant Upgrades Reference ListPlant
Page 34 and 35: TRI-FLO ® :-THE NEW GENERATION MUL
Page 36 and 37: The ability of the Tri-Flo ® to be
Page 38 and 39: Rejects re-cleaning with a 700 mm I
Page 40 and 41: GREEN FIELD STEEL PROJECT OF JSPLJS
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December 2011 - SIMA

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