基于PLC的高炉自动化控制系统设计-控制工程专业论文.docxVIP

基于 PLC 的高炉自动化控制系统设计 摘 要 本文主要论述了安钢 5#高炉炼铁生产过程自动化控制系统的硬件设 计、网络结构，并重点阐述了系统功能的实现方法和监控软件的设计。 高炉自动化控制系统由 PLC 控制站、 WinCC 监控站和工业以太网组 成。通过工业以太网完成对高炉本体 和热风炉参数采集、热风炉的燃烧 和换炉控制等高炉工作流程控制，以 及控制站和监控站之间的通信。该 系统设计了监控画面，编制了监控程 序，并实现了对现场过程数据的动 态监视功能、历史数据的归档功能、 异常信号的报警功能、现场操作的 指导功能和对生产过程的控制功能等。 该控制系统充分发挥了 PLC配置灵活、控制可靠、编程方便和操作维 护简单的优点，已在生产线上得到应 用，运行安全可靠，控制效果良 好，完全满足了现场工艺的要求，且 监控界面友好，操作简单方便、结 构清晰。该系统提高了企业的生产能 力和产品质量、降低了生产成本和 工人劳动强度，实现了良好的经济和社会效益。 关键词：高炉，PLC，工业以太网 The Design of Automatic Control System for Blast Furnace Based on PLC Abstract This paper discusses the subsystem electricity of the ANYANG No.5 BF ironmaking process and hardware design, network structure and communication protocol of instrument Automatic Control System, mainly offers the method of accomplishing system function and the design of control software as well. The whole Blast Furnace Automatic Control System is made up of PLC Controller, WinCC Monitoring Station and Industrial Ethernet. Via the Industrial Ethernet, we could collect parameters from hot blast stove and blast heater, as well as the combustion and automatic changeover control of hot blast stove. This thesis designs the monitoring interface and the monitoring program for the system, which could realize the function of surveillance for the on-site dynamic data, historical data archiving, abnormal signal alarm, field operation guidance and the control of the production process. The Automatic Control System has been applied to the production line and the process control of PLC system technology has also met the requirements of field technology, with the monitoring interface easy to operate, which are helpful to raise the production efficiency and quality, to reduce cost and labor intensity. The PLC, having the advantages of flexible configuration, stable control, easy programming and maintenance, enjoys reliable operation and satisfying function in its work. Key words：Blast furnace, PLC, Industry Ethernet 插图清单 图 1-1 相关专家系统构成示意图 3 图 2-1 高炉炼铁生产工艺 10 图 2-2 高