摘要：從系統結構、系統配置、重要控制項目及系統的聯鎖控制等方面介紹PLC在豎爐球團生產自控系統中的應用。通過三年多的應用，表明其系統的可靠性高、操作簡單、獨立工作性強。
關鍵字：豎爐，球團，PLC控制

Abstract：This paper is on the structure, configuration and important control item of the PLC control system, which is used in autocontrol system of the Shaft Furnace & Rotundity Plant. More than three-year application, It’s proved that the system is excellent-reliability, simple- operation and high-independency.
Keywords：shaft furnace, rotundity project, PLC control