学位论文—-高炉联合泵站自动控制系统设计.doc

学号: HEBEI UNITED UNIVERSITY 毕业设计说明书 G RADUATE D ESIGN 设计题目: 高炉联合泵站自动控制系统学生姓名: 专业班级: 学院: 电气工程学院指导教师: 2014 年5月 30日摘要 I 摘要钢铁行业是我国重工业之一,是我国的支柱产业。高炉冷却系统是炼铁生产的重要环节,其控制方案与设计直接影响高炉的寿命和产量。高炉冶炼过程是一个连续的、大规模的、高温生产过程,正确、合理选择高炉的冷却水循环系统控制方式对提高我国炼铁工业的节水降耗水平、延长高炉寿命具有重要的指导作用和现实意义,将对我国的钢铁业产生深远影响。现在国内外钢铁企业都非常关注高炉产量和寿命如何提高的问题,也都在积极应用高炉自动化冷却系统。本设计是基于 PLC 控制、组态软件监控显示的高炉联合泵站自动控制系统,高炉联合泵站包括高炉冷却水循环水泵、各类阀门等设备,为高炉生产提供冷却用水。本课题按照生产工艺的要求,研究设计泵站设备的电气控制回路、泵阀逻辑控制、温度检测与控制、泵机状态检测预警等。完成电气、自动化设备生产图纸的设计、PLC 控制程序和 HMI 人机界面软件的设计开发, 最终使设计达到生产现场应用的条件。现代高炉自动化主要是指检测及控制系统、电气控制系统和过程及管理用的上位机。即高炉“三电”一体化。关键词高炉;泵站;自动化;控制系统 Abstract II Abstract Iron and steel industry isone of China's heavy industry, is the pillar industry of our country. Blast furnace cooling system is an important link of ironmaking production, the control scheme and design directly influence the life of the blast furnace and yield. The blast furnace smelting process isa continuous, large-scale, high temperature production process, correct, reasonable selection of circulating cooling water system of blast furnace control mode has an important guiding role and practical significance for improving Chinese ironmaking industry water consumption, prolong the service life of the blast furnace, will produce far-reaching effect toour country iron and steel industry. Domestic and foreign panies are very concerned about how to improve the yield and the life of furnace problems, are also active in the application of automation of blast furnace cooling system. The design of automatic control system of PLC control, configuration software monitoring display based on blast furnace blast bined pumping station, pump station including blast furnace cooling water circulation pumps, valves and other equipment, to provide cooling water for the blast furnace production. According to the production process requirements, design the electric control circuit of the pumping equipment, pump & valve logic control, temperature detection and control, pump machine state detec