Silicon Control in Blast Furnace

ti Control in antiaircraft gun Furnace Hot surface is one of the most critical problems in to daytimes Iron Making. With deterioration in quality of iron ore day by day, silica load in the burden fabric has a steady increase. The equivalent story is with the Coke ash, which passes nifty amount of te in the alive metal. Every 0.1% diminution in silicon in the hot metal gives climb to 1.5 % increase in hot metal production. In the agonistical scenario of todays Iron Making hence it is essential to reduce every bit of Silicon in hot metal to boost up furnace production and productivity. Experience of Blast Furnace Operation buzz offs 0.5 to 0.7 % . Blast Furnace # 1 in Bhilai Steel Silicon in hot metal is the optimal for furnace productivity and furnace health. Plant, India had a typical problem of producing high silicon metal since July 2005. another(prenominal) same capacity furnaces viz. Furnace 2 & 3 of the same plant did not show such fluctuation in silicon. Although the wide variation in input variables were known only if the exact reason was difficult to identify due to complexities in Blast Furnace Process. Hence a Six Sigma Black overhead Project had been taken up to control the silicon aim of BF # 1 hot metal and maintain it at an optimum level below 0.7 %.

Pareto Analysis and Graphical Summary of historical 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 decrement of percentage casts having silicon more than 0.7% from 64.88% to 40 % had been taken up. by dint of DMAIC process initially 53 inputs were identified in detailed 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 tally values approximately near to the calculated value of the... If you wishing to get a full essay, order it on our website: Orderessay

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