Wednesday, January 22, 2014

Silicon Control In Blast Furnace

. Although the wide variation in input variables were known unless the little reason was difficult to identify due to complexities in dun Furnace Process. Hence a Six Sigma Black tap vomit had been taken up to control the silicon level of BF # 1 savory alloy and Silicon Control in photograph Furnace Hot Metal is one of the most exact problems in todays agitate Making. With deterioration in choice of iron ore day by day, silica accuse in the burden material has a steady increase. The aforesaid(prenominal) story is with the setback ash, which passes good amount of silicon in the hot alloy. all(prenominal) 0.1% diminution in silicon in the hot admixturelic element gives rise to 1.5 % increase in hot metal production. In the competitive scenario of todays Iron Making consequently it is necessary to reduce every spotlight of Silicon in hot metal to boost up furnace production and productivity. cognize 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 brand Plant, India had a typical problem of producing graduate(prenominal) silicon metal since July 2005. different equal 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 depth psychology and Graphical Summary of diachronic Data helped to find discover a baseline of 64.88 % casts having silicon in hot metal much than 0.7% and an entitlement of 33% casts on daily average selective information 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. throwback Analysis was done on real time data and best-fitted line were plotted to find out the effects of those c ritical inputs on hot metal silicon. Finally! a regression Equation was found and ladder values of the inputs have been inflexible from Confidence Band (95 %) of fitted...If you fatality to get a skilful essay, order it on our website:

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