设计一座年产150万吨良坯氧气转炉炼钢车间

华北理工大学轻工学院QingGongCollegeNorthChinaUniversityofScienceandTechnology毕业设计说明书设计题目：设计一座年产150万吨良坯氧气转炉炼钢车间学生姓名：马勇蕾学号：201124090413专业班级：11冶金4班学部：材料化工部指导教师：贾雅楠2015年06月01日摘要-I-摘要本设计为设计一座年产150万吨的氧气转炉炼钢车间，主要产品是低碳钢和薄板坯。设计包括车间生产规模，各主要系统，方案的选择和确定。车间主要设备的计算与确定，以及先进技术的选择和利用等。本设计的重点是车间的主要系统的方案确定。包括铁水供应系统，散装料供应系统，铁合金供应系统，铁水预处理系统，烟气净化系统，炉外精炼系统，浇注系统，炉渣处理系统等。这些方案都是经过比较而确定的较合理的设计方案，并且采用了国内外的先进技术。本设计主要包括转炉炉型计算、氧枪计算、烟气净化系统计算及选择、炉外精炼的设备选择、车间设备的计算以及各跨间的布置，还包括连铸生产能力和车间各部分的尺寸。另外本设计还采用了许多新技术，如：溅渣护炉技术、铁水镁基预脱硫技术等，这些技术均已达到国际先进水平。关键词:60吨氧气顶吹转炉；车间设计；系统。Abstract-II-AbstractThisdesignisasteel-makingplantwithtwosetsofoxygenconvertersof200tons,whichcanproducethreepointfivemilliontonsofcastingblankperyear.Itconsistoftheplantscalechoosingandensuringmainsystem,thecalculationandensuringofthemainequipment,andalsoincludingsomenewtechnology.Theimportanceofthedesignisconformingthemainsystemoftheplant,includingthesystemmoltenironprovided,theprovidingsystemoflaxity,theprovidingsystemofferroalloy,pretreatmentofmolteniron,thecleaningsystem,thetreatmentsystemofslagandsoon.Comparedwithotherschemes,thesemethodsarequiteadaptabletothisdesignandtheyareadvancedtechnologiesintheworld.Thefollowingsaremainlyincludedinthedesign:thecalculationoftheconverter,thecalculationofoxygen-lance,thecalculationandselectionofflue-gascleaningsystem,thecalculationoftheworkshopequipmentandthearrangementofeachspan.What’smore,thedesignhasadoptedalotofnewtechnologiessuchas:slag-splashtoprotectthestove,moltenironpredesulphurizingbasedonmagnesiumandsoon.Thesetechnologiesareallreachedtheadvancedlevelintheworld.Keywords:BOFof60tons,convert,thecalculationoftheplantdesign,system目录-III-目录摘要...............................................................................................................................IABSTRACT.........................................................................................................................II第1章绪论.....................................................................................................................11.1钢铁工业在国民经济中的地位和作用...................................................................................11.2炼钢工艺的发展及现状.........................................................................................................11.3.本章小结................................................................................................................................2第2章产品方案及金属料平衡估算....................................................................................32.1产品大纲.................................................................................................................................32.2全厂金属料平衡估算.............................................................................................................32.3技术可行性............................................................................................................................4第3章转炉车间生产工艺流程...........................................................................................53.1设计原始条件.........................................................................................................................53.2生产工艺流程图.....................................................................................................................53.3本章小结................................................................................................................................7第4章转炉炼钢的物料平衡和热平衡计算..........................................................................84.1物料平衡计算.........................................................................................................................84.2热平衡计算...........................................................................................................................154.3本章小结...............................................................................................................................20第5章原料供应及铁水预处理方案..................................................................................215.1原料供应...............................................................................................................................215.2铁水预处理方案...................................................................................................................245.3本章小结...............................................................................................................................25第6章转炉座数及其年产量核算.....................................................................................266.1转炉容量和座数的确定........................................................................................................266.2车间生产能力的确定............................................................................................................266.3确定转炉座数并核算年产量................................................................................................27第7章转炉炉型选型设计及相关参数计算...............................................................................297.1转炉炉型设计..................................................................................