河北理工大学信息学院 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。
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Abstract
Abstract
This design is a steel-making plant with two sets of oxygen converters of 200 tons, which can produce three point five million tons of casting blank per year. It consist of the plant scale choosing and ensuring main system, the calculation and ensuring of the main equipment, and also including some new technology.
The importance of the design is conforming the main system of the plant, including the system molten iron provided, the providing system of laxity, the providing system of ferroalloy, pretreatment of molten iron, the cleaning system ,the treatment system of slag and so on.
Compared with other schemes, these methods are quite adaptable to this design and they are advanced technologies in the world. The followings are mainly included in the design: the calculation of the converter, the calculation of oxygen-lance, the calculation and selection of flue-gas cleaning system, the calculation of the workshop equipment and the arrangement of each span. What’s more, the design has adopted a lot of new technologies such as:slag-splash to protect the stove, molten iron predesulphurizing based on magnesium and so on. These technologies are all reached the advanced level in the world.
Keywords: BOF of 60 tons, convert, the calculation of the plant design, system
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目 录 目 录
摘 要 ...............................................................................................................................I ABSTRACT ......................................................................................................................... V 第1章 绪论 ..................................................................................................................... 1 1.1 钢铁工业在国民经济中的地位和作用 ................................................................................... 1 1.2 炼钢工艺的发展及现状 ......................................................................................................... 1 1.3.本章小结 ................................................................................................................................ 2 第2章 产品方案及金属料平衡估算 .................................................................................... 3 2.1产品大纲 ................................................................................................................................. 3 2.2 全厂金属料平衡估算 ............................................................................................................. 3 2.3 技术可行性 ............................................................................................................................ 4 第3章 转炉车间生产工艺流程 ........................................................................................... 5 3.1 设计原始条件 ......................................................................................................................... 5 3.2 生产工艺流程图 ..................................................................................................................... 5 3.3 本章小结 ................................................................................................................................ 7 第4章 转炉炼钢的物料平衡和热平衡计算 .......................................................................... 8 4.1物料平衡计算 ......................................................................................................................... 8 4.2热平衡计算 ........................................................................................................................... 15 4.3本章小结 ............................................................................................................................... 20 第5章 原料供应及铁水预处理方案 .................................................................................. 21 5.1原料供应 ............................................................................................................................... 21 5.2铁水预处理方案 ................................................................................................................... 24 5.3本章小结 ............................................................................................................................... 25 第6章 转炉座数及其年产量核算 ..................................................................................... 26 6.1转炉容量和座数的确定 ........................................................................................................ 26 6.2车间生产能力的确定 ............................................................................................................ 26 6.3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 ............................................................................... 29 7.1转炉炉型设计 ....................................................................................................................... 29 7.2转炉炉衬设计 ....................................................................................................................... 32 7.3转炉炉体金属构件设计 ........................................................................................................ 33 第8章 转炉氧枪设计及相关参数计算 ...................................................................................... 35 8.1氧枪喷头尺寸计算................................................................................................................ 35 8.2 60T转炉氧枪枪身尺寸计算 ................................................................................................. 38 第9章 炉外精炼设备选型 ......................................................................................................... 41 9.1炉外精炼的功能 ................................................................................................................... 41 9.2 LF精炼炉 ............................................................................................................................. 41 9.3 RH精炼炉 ............................................................................................................................. 42 第10章 连铸机设备选型及相关参数确定 ................................................................................. 43 10.1 连铸机机型选择 ................................................................................................................. 43
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目 录 10.2 连铸机主要参数的确定...................................................................................................... 43 10.3 连铸机生产能力的计算...................................................................................................... 46 第11章 烟气净化系统的选型及相关计算 .......................................................................... 50 11.1 转炉烟气净化与回收的意义 .............................................................................................. 50 11.2 转炉烟气净化及回收系统 .................................................................................................. 50 11.3 回收系统主要设备的设计和选择 ...................................................................................... 52 11.4 计算资料综合 ..................................................................................................................... 53 第12章 车间工艺布置方案 ....................................................................................................... 54 12.1 车间工艺布置方案 ............................................................................................................. 54 12.2 转炉跨布置 ........................................................................................................................ 54 12.3 连铸各跨布置 ..................................................................................................................... 58 12.4 装料跨布置 ........................................................................................................................ 61 结论 ............................................................................................................................... 63 参考文献 ........................................................................................................................ 64 谢 辞 .............................................................................................................................. 1
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设计一座年产150万吨良坯氧气转炉炼钢车间毕业设计说明书
