tundish level control system(No.2 slab caster improvement project includes the mold powder feeder and control system modernization, the tundish level control system upgrade and the installation of a mold sticker detection system.2 号板坯连铸机改造项目包括结晶器保护渣加渣器和控制系统现代化,中间包钢水面液位控制系统更新改造以及安装一套结晶器粘结检测系统。)