1、 毕业设计（论文）毕业设计（论文） . 题 目 年产年产 100100 万吨不锈钢技改可行性研究万吨不锈钢技改可行性研究 2012 年 02 月 30 日 I 摘要摘要 不锈钢是一种特殊的钢种，跟我们的生活息息相关，应用也比较广泛，在各 个领域都有重要的运用，论文题目是对年产 100 万 t 不锈钢技改可行性进行研究。 本论文主要介绍不锈钢的概述，分类和发展情况，对 VOD、AOD 冶炼不锈钢 的技术及原理进行分析，也比较了冶炼不锈钢的主要设备，初炼炉及精炼炉的选 择情况，对铁水预处理、不锈钢脱碳、脱硫控氮等具体精炼工艺的分析，及冶炼 不锈钢的二步法和三步法优缺点。再结合不锈钢的性能要求和技改
2、的具体对象进 行分析研究，通过对国内外生产不锈钢的企业的生产技术进行比较分析，从重钢 钢厂的技术、设备等条件出发确立钢厂年产 100 万 t 不锈钢的可行性，选用工艺流 程为：铁水预处理转炉双冶炼RH 精炼连铸。 关键词：不锈钢 工艺流程 设备 精炼工艺 可行性 II ABSTRACT Stainless steel is a kind of special steel, with our life, applications are more extensive, in every area of the use of important, paper topics with annual
3、capacity of 1 million t is the technical feasibility of stainless steel. This thesis mainly describes an overview of stainless steel, the classification and development situation of VOD, AOD of stainless steel smelting technology and principle analysis, also compared the main equipment of stainless
4、steel smelting, early furnaces and finer choice of iron pretreatment, stainless steel decarburization, desulfurization accused of nitrogen, the analysis of the specific refining technology, and smelting stainless steel ldpe-g-nvp and three-stage method to advantages and disadvantages. Combine the pe
5、rformance requirements of technical and stainless steel concrete object of study, through the domestic and international production stainless steel enterprise production technology, this paper analyzes the technology from steel mills, and equipment conditions established steel plant with an annual c
6、apacity of 100 t the feasibility of stainless steel, choose the technological process is: iron pretreatment of converter-double-LF refining-smelting casting. Keywords：Stainless steel process equipment Refining technology feasibility 3 目录 摘要 . I ABSTRACT II 1 绪论 1 1.1 不锈钢的概述 1 1.2 不锈钢的主要分类 2 1.3 国内外不锈钢发展的概况 3 1.我国出台多项政策鼓励发展 3 2 不锈钢冶炼技术概述 8 2.1VOD 冶炼不锈钢. 8 2.1.1 VOD 的工作原理 8 2.1.2 VOD 冶炼不锈钢的工艺路线 8 2.1.3 VOD 冶炼不锈钢的优缺点 9 2.2 AOD 冶炼不锈钢 9 2.2.1 AOD 的工作原理 9 2.2.2 AOD 法的基本工艺 9 2.2.3 AOD 冶
