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应用灰色系统理论实现转炉脱磷脱硫同时优化
【作者】 余海峰;
【导师】 俞景禄;
【作者基本信息】 西安建筑科技大学 , 钢铁冶金, 2001, 硕士
【摘要】 本文以酒钢50tLD转炉生产数据为基础,分析了影响转炉脱磷、脱硫的相关工艺参数,应用灰色系统理论,给出了转炉脱磷、脱硫影响因素的关联度,建立了转炉脱磷、脱硫灰色系统GM(0,N)数学模型。转炉脱磷影响因素的灰色关联序为:t终(X6)>qo2(X7)>R终(X9)>(%∑FeO)终(X8)>τ吹(X5)>[%P]o(X3)>[%S]o(X4)转炉脱硫影响因素的灰色关联序为:[%S]0(X4)>[%P]o(X3)>τ吹(X5)>R终(X9)>t终(X6)>qO2(X7)>(%∑FeO)终(X8)转炉脱磷、脱硫灰色系统GM(0,N)数学模型为:ηp=0.2279[%P]o-0.3356[%S]o-3.9403τ吹-0.035t终+1.664qO2+1.7441(%∑FeO)终十13.9958R终 ’““‘””“\””Al““”I#’““’””“”“e 同时文中进一步建立了转炉炼钢脱磷、脱硫多元线形回归模型,通过两种模型的分析与比较,验证了灰色GM(O,N)模型在转炉冶炼系统中的适用性。转炉脱磷、脱硫 GM(0,N)模型精度检验结果表明,该模型精度较高,具有一定的普遍性。最后,采用转炉脱磷、脱硫GM(0,N)模型,编制了线形多目标规划优化程序, 1 __二 西安建筑科技大学硕士论文 一 得到酒钢 50tLD转炉脱磷、脱硫同时优化的工艺条件为:[okPL:93X10“~ 114X10“%;[%SI。:42X10“~52X10--3%:u:14~16min:T~,1620~1670 t。q。:45~51”X;(oh>:FeO。:16~20%;R。:3.0~3.5。
【Abstract】 On the basis of the production data for50tLDat Jin Steel, thetechnlogical parameters influencing the dephsphorization anddesulfuration in converter steel-making are analyzd. By applyinggray system theory, the degree of association of factors influencing thedephsphorization and desulfuration is found, and the GM(0,N)mathematical models for dephosphorization and desulfuration arebuilt.The order of the factors influencing dephosphorization is asfollows:tf (X6) > qo2(X7) > Rf(X9) > (%∑FeO)f(X8) > (?)n (X5) > [%P], (X3) > [%S]0, (X4The order of influencing factors related to desulfuraton is:[%S]0,(X4) > [%P]0,(X3) >(?)b(X5) > Rf(X9) > tf(X6) > qoz (X7) > (%∑FeO)f,(X8GM(0, N)models for dephosphorization and desulfuration are:np = 0.2279[%P]0, -0.3356[%S]0, -3.9403(?)b-0.0035tf + l.0664qQ2+l.744l(%∑Feo)f, +l3.9958Rf(?)s=-0.2737[%P]0 + 1.l106[%S]0 + 5.7957tb-0.0264tl-0.5777qO2-0.3574(%∑FeO)f+5.0205RfThen, the multivariable linear regression models for dephosphorization and desulfuration in converter steelmaking are established too.By and comparing the two models, the applicabilty ofthe GM(0,N)model in converter Steel-making system is certified. Theprecision checkin results of the GM(0, N)model also indicated that thismodel is precise and Prevalen.Finally the optimizing program of linear multi-objective-planningis Worked out, and the optimized technological conditions of dephosp-horization and desulfuration in 50tLD converter steel-making are obtained: [%P]0:93xl0-3~l14 x10-3%; [%S]0,:42x10-3 ~ 52x10-3%;(?)4:l4~16min;Tf:1630~l670℃; qo2:45~5lm3/t; (%∑FeO)f,:l6~20%; Rf,:3.0~3.5.
【Key words】 Gray system; converter; dephosphorization anddesulfuration; optimization;
- 【网络出版投稿人】 西安建筑科技大学 【网络出版年期】2002年 01期
- 【分类号】TF713.3;TB115
- 【被引频次】5
- 【下载频次】363