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年产200万吨合格连铸坯的转炉炼钢系统设计.doc

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年产200万吨合格连铸坯的转炉炼钢系统设计.doc

技术学院毕业设计说明书设计题目年产200万吨合格连铸坯的转炉炼钢系统设计错误未找到引用源。学号_________________________姓名_________________________专业班级_________________________2011错误未找到引用源。年06错误未找到引用源。月01错误未找到引用源。08级冶金一班错误未找到引用源。I摘要由于市场对钢材的大量需求,现代化的炼钢设备都在向着大型化的方向发展,本设计主要是模拟建立一个现代化年产200万吨的中型炼钢企业,以满足市场对钢材的需求,促进经济的稳定发展。设计内容主要包括转炉炉型设计、氧枪喷头设计、各种附属设备的确定等。通过本设计从而获得有利于冶炼的参数,对现场生产起到一定的指导作用,并为现场生产提供理论依据。关键词炼钢炉型设计IIABSTRACTBecauseofthehighdemandforsteelmarket,modernsteelmakingequipmenttowardthedirectionofbignessindevelopment,thisdesignismainlysimulationinliupanshuicitytobuildamodernyearlyproduces200tonsofmediumsizedsteelmakingenterprise,tomeetthemarketdemandforsteel,andpromotesteadyeconomicdevelopment.Designcontentmainlyincludesconvertertypedesign,oxygenlancenozzledesign,variousattacheddevicesure,etc.Throughthisdesignsoastoachievetheparametersforsmelting,tothefieldproductionplayaguidingrole,andprovidetheoreticalbasisforthefieldproduction.KeywordssteelmakingFurnacetypedesign目录摘要...........................................................................................................................IABSTRACT.............................................................................................................II第一章文献综述....................................................................................................11.1炼钢的基本任务........................................................................................11.2炼钢方法分类............................................................................................11.2.1平炉炼钢法.....................................................................................11.2.2电弧炉炼钢法.................................................................................11.2.3转炉炼钢法.....................................................................................11.3氧气转炉炼钢法的诞生............................................................................21.3.1世界氧气顶吹转炉炼钢法发展概述...............................................31.3.2国内氧气转炉炼钢方法的发展应用概述.......................................41.4转炉炼钢技术介绍及在冶金企业中的的应用........................................61.4.1转炉炼钢的基本任务.....................................................................61.4.2转炉炼钢的种类与特征.................................................................61.4.3氧气顶吹转炉炼钢过程简述.........................................................71.5冶炼的五大制度........................................................................................81.5.1装入制度...........................................................................................81.5.2供氧制度...........................................................................................91.5.3造渣制度...........................................................................................91.5.4温度制度...........................................................................................91.5.5终点控制、脱氧及出钢.................................................................101.5.6现代转炉炼钢工艺流程.................................................................101.6转炉新技术的介绍...................................................................................111.6.1顶底复合吹炼技术..........................................................................111.6.2溅渣护炉技术.................................................................................121.7现代转炉炼钢技术存在的问题..............................................................13第二章产品方案及品种......................................................................................142.1生产规模..................................................................................................142.2产品方案..................................................................................................142.2.1产品大纲.........................................................................................142.2.2生产钢种.........................................................................................142.3金属平衡表..............................................................................................16第三章转炉炉型设计..........................................................................................173.1转炉的座数、公称容量及生产能力的确定.........................................173.1.1转炉容量和座数的确定.................................................................173.1.2计算年出钢炉数.............................................................................173.1.3计算车间年产钢量.........................................................................183.2转炉炉型的主要参数..............................................................................183.2.1炉型选择.........................................................................................183.2.2炉容比.............................................................................................193.2.3熔池尺寸的计算.............................................................................193.2.4炉帽尺寸的确定.............................................................................203.2.5炉身尺寸确定.................................................................................203.2.6出钢口尺寸的确定.........................................................................213.2.7炉衬厚度确定.................................................................................213.2.8炉壳厚度确定.................................................................................213.2.9验算高宽比.....................................................................................22第四章氧枪设计..................................................................................................234.1氧枪喷头设计..........................................................................................234.1.1原始数据.........................................................................................234.1.2计算氧流量.....................................................................................234.1.3选用喷孔.........................................................................................234.1.4设计工况氧压.................................................................................234.1.5计算喉口直径................................................................................234.1.6计算d出...........................................................................................244.1.7计算扩张段长度.............................................................................244.1.8收缩段长度....................................................................................244.2氧枪枪身设计..........................................................................................244.2.1原始数据.........................................................................................244.2.2中心氧管管径确定.........................................................................254.2.3中层套管管径的确定.....................................................................254.2.4外层套管管径的确定.....................................................................254.2.5中层套管下沿至喷头面间隙h......................................................26第五章车间其它主要设备的计算和选择..........................................................275.1铁水供应系统设备.................................................................................275.1.1混铁炉容量和座数.........................................................................275.2废钢供应系统和设备.............................................................................275.2.1废钢间面积.....................................................................................275.2.2废钢槽容量.....................................................................................285.3盛钢桶容量和数量的选择.....................................................................285.4渣罐车数量的确定..................................................................................295.4.1渣罐车数量.....................................................................................295.5起重机的选择及台数的确定..................................................................30第六章转炉车间主厂房的工艺布置和尺寸选择..............................................326.1主厂房主要尺寸的确定..........................................................................326.1.1原料跨间布置.................................................................................326.1.2炉子跨间布置.................................................................................336.1.3浇铸跨主要尺寸的确定.................................................................346.1.4精炼跨跨度确定.............................................................................346.2连铸区域的布置.....................................................................................34第七章烟尘处理系统..........................................................................................367.1国内外转炉炼钢烟尘处理系统概况......................................................367.2转炉煤气干法LT法除尘技术工艺介绍..............................................377.3转炉煤气干法除尘系统主要构成及技术特点......................................387.3.1蒸发冷却器...................................................................................387.3.2静电除尘器...................................................................................397.3.3煤气冷却器...................................................................................397.3.4控制系统.......................................................................................397.4经济效益和社会效益分析......................................................................407.5转炉煤气干法除尘系统发展前景..........................................................41参考文献................................................................................................................42结论........................................................................................................................43致谢........................................................................................................................44内蒙古科技大学高等职业技术学院毕业设计说明书1第一章文献综述1.1炼钢的基本任务炼钢的某木任务是利用当前主要炼钢方法,在造好渣的前提下,进行脱碳、脱磷、脱硫、升温以反脱氧和合分化、去除有害气体、去除非金属夹杂等过程。1.2炼钢方法分类炼钢方法可分为可炉炼钢法、电弧炉炼钢法和转炉炼钢法。其中氧气转炉炼钢法是目前国内外主要的炼钢方法。目前国外主的炼钢方法11.2.1平炉炼钢法1879年碱性平炉投入生产,100多年来平炉炼钢法一直是主要的炼钢方法,对炼钢生产和科学技术的发展起着巨大的作用。平路炼钢法对原料适应性强、冶炼品种广、钢质量比较好、冶炼过程容易控制。虽然平炉冶炼工艺和设备不断革新和改进,但随着氧气转炉炼钢法的迅速发展,平炉炼钢法的缺点明显突出,主要变现为冶炼周期长、生产效率低、基建投资打、冶炼品种少等,已无法与氧气转炉炼钢法相竞争。1.2.2电弧炉炼钢法19世纪后半期,继平炉炼钢法、转炉炼钢法出现后,电炉炼钢法也诞生了,电炉炼钢法包括电弧炉炼钢法、感应电炉炼俐法和电渣炉炼钢法。但通常所说的电炉炼钢法则指电弧炉炼钢法,电弧炉炼钢法最初主要用于生产上具钢,也用于冶炼高合金钢、不锈钢及其他高质量钢。后来又扩大到生产低合金钢,现在电弧炉不但用于生产合金钢,同时也用于生产碳素钢。1.2.3转炉炼钢法转炉炼钢法分为空气转炉炼钢法和氧气转炉炼钢法两大类。氧气转炉炼钢法是目前内外最主要的炼钢方法。氧气转炉炼钢法自20世纪50年代初问世以来.在世界各国得到了泛的应用.技术不断进步,设备不断改进,工艺不断完善,从顶

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