本文以本鋼2 號高爐大修改造為背景，根據高爐工藝對計算機監控系統的要求，采用SIEMENS 公司S7-400 系列的PLC 和控制計算機構成了計算機過程監控系統。該系統具備了現場過程數據的動態監視功能、歷史數據的歸檔功能、異常信號的報警功能、現場操作的指導功能和對生產過程的控制功能等，系統投入運行以來，工作正常，控制平穩，為高爐迅速達產創造了良好的環境和條件，具有較強的實用性。
關鍵詞：高爐；過程控制；監控系統
ABSTRACT The article based on rebuilding of NO.2 BF in Benxi Iron and Steel Co.According to the equirement of the computer monitoring system in the crafts of BF, a process computer system has been set up and it adopted control computer and S7-400 series PLC produced by SIEMENS company .At the mean time, Monitoring and control parts are configured and programmed to realize the function of monitoring alarming of abnormal signals, logging of history date, guiding of control .After the system put to use, all the things have
proved to be normal work, steadily control and it has practicality for the perfect condition and surrounding for the NO.2 BF achieving its goal in production.
KEY WORDS blast furnace; process control; monitoring control system