Silicon Control In Blast Furnace

. Although the wide variation in input variables were known unless the exact reason was difficult to identify due to complexities in Blast Furnace Process. Hence a Six Sigma Black tap Project had been taken up to control the silicon level of BF # 1 savory alloy and Silicon Control in Blast Furnace Hot Metal is one of the most exact problems in todays agitate Making. With deterioration in quality of iron ore day by day, silica accuse in the burden material has a steady increase. The aforesaid(prenominal) story is with the Coke ash, which passes good amount of silicon in the hot metal. Every 0.1% diminution in silicon in the hot metal gives rise to 1.5 % increase in hot metal production. In the competitive scenario of todays Iron Making hence it is necessary to reduce every spotlight of Silicon in hot metal to boost up furnace production and productivity. Experience of Blast Furnace Operation keys 0.5 to 0.7 % Silicon in hot metal is the optimum for furnace productivity and furnace health.
Blast Furnace # 1 in Bhilai Steel Plant, India had a typical problem of producing graduate(prenominal) silicon metal since July 2005. Other same capacity furnaces to wit Furnace 2 & 3 of the same plant did not demonstrate such fluctuation in maintain it at an optimum level below 0.7 %.



Pareto Analysis and Graphical Summary of diachronic Data helped to find out a baseline of 64.88 % casts having silicon in hot metal more than 0.7% and an entitlement of 33% casts on daily average data base. A target of reduction of percentage casts having silicon more than 0.7% from 64.88% to 40 % had been taken up.
done DMAIC process initially 53 inputs were identified in tiny Map, which was scaled down to 5 critical inputs after C&E Matrix and FMEA. Regression Analysis was done on real time data and best-fitted line were plotted to find out the effects of those critical inputs on hot metal silicon. Finally a Regression Equation was found and ladder values of the inputs have been fixed from Confidence Band (95 %) of fitted...If you fatality to get a full essay, order it on our website: Orderessay



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