转炉炼钢煤气回收利用自动控制系统的研究与应用

摘要

针对某炼钢厂的转炉炼钢煤气回收系统进行深入研究,设计构建基于西门子S7-300的自动控制系统.该文深入了解煤气回收工艺流程和回收条件,构建以S7-300为主站、采用Profi-bus进行数据通信、以西门子WinCC系统进行监控的转炉炼钢煤气回收自动控制系统.并在以上基础上以S7-300为主站通过Profibus-DP与变频器从站进行数据通信,用变频器对加压机风进行变频调速,采用煤气回流控制实现恒压供气.%This is a further research about gas recovery system of converter steelmaking in a steelmaking plant. And the gas recovery system is designed based on Siemens S7 - 300 automatic control system. The recycling process of gas recovery construct with S7 - 300 as the main station, transferring data by Profibus , monitoring by Siemens WinCC system. And on the basis of the above, data are transferred between S7 - 300 and Profibus - DP by S7 - 300 as the main station, and the frequency of the winds of pressure machine are changed with transducer, in the end the gas are supplied continually by controlling gas reflux.