年产100万吨钢坯(锭)电炉炼钢车间初步设计

贵州大学毕业论文（设计）第-I-页目录摘要.....................................................................................................................IIIAbstract...........................................................................................................IV第一章新建电炉炼钢车间可行性分析.........................................................11.1前言...............................................................................................................11.2市场需求.......................................................................................................21.3冶金资源.......................................................................................................21.4贵阳交通与地理位置....................................................................................41.5环境保护.......................................................................................................4第二章产品方案、车间生产能力的确定以及全厂金属平衡.....................52.1产品方案的确定............................................................................................52.2车间生产能力的确定....................................................................................72.3金属平衡图...................................................................................................8第三章电弧炉炉型、变压器功率及电参数设计.......................................103.170t电弧炉炉型的选择及尺寸计算........................................................103.2耐火材料及炉壳的设计............................................................................123.3变压器功率和电参数设计.........................................................................133.3.2电压的级数.............................................................................................143.3.3电极直径.................................................................................................15第四章电炉物料平衡及热平衡计算...........................................................174.1物料平衡计算.............................................................................................175.2热平衡计算.................................................................................................444.3误差分析......................................................................................................49第五章主要附属设备选择及其主要工艺参数计算...................................505.1炉外精炼设备的选择.................................................................................505.2浇注方式的选择..........................................................................................515.3连铸机的分类与选择..................................................................................525.4车间各跨区的尺寸及主要附属设备..........................................................52第六章环境保护...........................................................................................56贵州大学毕业论文（设计）第-II-页6.1电炉炼钢厂污染的特点............................................................................566.2烟气净化方法的选择.................................................................................56参考文献..........................................................................................................58致谢................................................................................................................59附录................................................................................................................60附录一：70t电弧炉剖面图（A2图）............................................................60附录二：车间平面工艺布置图（A1图）.......................................................60贵州大学毕业论文（设计）第-III-页年产100万吨钢坯（锭）电炉炼钢车间初步设计摘要世界电炉钢产量不断增长，总产量占整个粗钢产量的1/3，但我国目前面临自1990年以来第二次逐年下降的局面。因此，针对我国目前废钢及电力紧缺的现状，从全球可持续发展和使我国由钢铁大国变为钢铁强国的战略出发，目前国家应通过宏观调控，扶持我国电炉钢的发展，引导钢铁企业对发展我国现代电炉炼钢流程进行第二轮投资。本设计根据这些情况并结合贵州地区的市场需求、废钢资源、生铁资源、电力资源、水资源、交通运输、环境保护等多方面提出在贵州地区兴建年产100万吨钢坯（锭）电炉炼钢车间的可能性并作了可行性分析，在此基础上进行了电炉车间的初步设计。主要内容有：产品方案、车间生产能力的确定、全厂金属平衡图的绘制；电炉炉型设计、变压器功率及主要电参数的计算；物料平衡与热平衡的计算；车间主要附属设备的选择、计算；环境保护；电炉炉型砌砖图和车间平面工艺布置图等。关键词：电炉钢坯设计贵州大学毕业论文（设计）第-IV-页Yearlyproduces1,000,000tonsbillets(spindle)theectricsteelmakingworkshoppreliminarydesignAbstractWorldEAFsteelproductionisgrowing,thetotalcrudesteelproductionoutputof1/3,butiscurrentlyfacingourcountrysince1990,anannualdeclineinthesecondsituation.Therefore,inviewofthecurrentshortageofscrapsteelandelectricitystatusquo,fromaglobalsustainabledevelopmentandtomakeourcountryintoagreatpowerbytheIronandSteelIronandSteelstrategicpower,thecurrentmacro-controlbytheStatetosupportthedevelopmentofChina'selectricfurnacesteeltoguidetheironandsteelenterprisesdevelopmentofmodernelectricfurnacesteelmakingprocessthesecondroundofinvestment.ThedesignunderthesecircumstancesandwiththeGuizhouregionmetallurgicalresources,marketdemand,transportation,environmentalprotection,andsoproposetheconstructionoftheGuizhouregionwithanannualoutputof1,000,000tonssteelbillet(ingot)electricfurnacesteel-makingworkshopandthepossibilityofafeasibilityAnalysis,onthebasisofapreliminarydesignoftheelectricfurnaceworkshop.Elementsinclude:productprogramme,workshopproductioncapacityofthedeterminationoftheentireplantmetalbalanceplanrendering;EAFfurnacedesign,powertransformersandmajorelectricalparameter