毕业设计-150t×3转炉精炼及连铸工艺设计.doc

重庆科技学院
毕业设计(论文)

题目 150t×3转炉精炼及连铸工艺设计

学院冶金与材料工程学院
专业班级冶金工程2009-03
学生姓名储强泽学号 200944046
指导教师张倩影职称讲师
评阅教师安娟职称助教
2013年 6 月 14日
摘要
目前,我国钢铁行业处于低迷期,一些中小型钢铁厂生存艰难,究其原因主要是这些企业能耗高,产品单一,产品科技含量低,缺乏市场竞争力。要想让我国钢铁行业走出困境,就必须使得钢铁企业能够市场处科技含量高,经济效益好的产品。日后,钢铁企业的发展方向将围绕节能减排、提高科技水平、生产性能优越的产品,提高企业市场竞争力而不断改革发展。
本课题的主要任务是:拟订产品生产工艺流程;转炉炉型选择,确定转炉和精炼以及连续铸钢工序的配合;制定主炼钢种的操作规程;转炉车间工艺布置方案的设计、厂房主要尺寸的计算;钢水浇铸方案及连铸机机型选择,浇铸系统主要数据和连铸机主要尺寸的计算等。
南通是东部发展最快的城市之一,各行各业对钢材的需求量大幅增加。随着全国各地的钢铁企业不断合并重组,为了降低生产成本,提高生产效率,减少能耗和生产成本,保护环境,各种转炉新技术被不断运用到现代转炉炼钢中去。该工艺设计有机的结合了铁水预处理、转炉炼钢、炉外精炼、连铸连轧等现代化工艺,形成紧凑的连续化生产线。本设计采用公称容量150t转炉3座,采用顶底复吹,实行三吹二的吹炼制度,冶炼过程为45min,吹氧时间18min。连铸工艺采用两台6流的方坯连铸机和一台2流的板坯连铸机。
关键词钢铁行业转炉炼钢炉外精炼连续铸钢烟气除尘
ABSTRACT
At present, Chinese iron and steel industry is in the doldrums, some small and medium-sized iron and steel plant survival difficult. The main reason is that the enterprises consum too much energy,produce a single production, product technology content is low, and lack of petitiveness. To make Chinese iron and steel industry out of its predicament, we must make the iron and steel enterprises to produce high scientific and technological content, good economic returns of products. The future direction of development of iron and steel enterprises, will focus on energy-saving emission reduction, improve the level of science and technology, the production of superior performance products, improving the petitiveness of enterprises and the continuous reform and development.
The main task of this topic is making the production process of products,selecting the conventer,making the operation rulers formulation of th main chain steel and at the end Design and calculation of converter process layout, workshop programme workshop main dimensions.
Nantong is one of the fastest growing city in the the development of NanTong, all walks of life needs a substantial increase in the amount of steel. With the increasing development of iron and steel industry, the iron and steel enterpri