前言 钢铁工业的炼钢工序目前存在着较大的浪费现象,主要有以下几点: (1)工序能耗高,主要由于直接能耗高,余热回收利用差,还有很大比重的二次化铁; (2)铁钢比高,造成钢铁工业内部结构不合理,导致铁水、烧结矿、焦炭和矿石的消耗高; (3)连铸比低,热锭温度低,严重影响 Preface There is a big waste in the steelmaking process in the steel industry. The main points are as follows: (1) High energy consumption of the process, mainly due to the high direct energy consumption, poor recovery and utilization of waste heat, and a large proportion of secondary Iron and steel; (2) the high ratio of iron and steel, resulting in an unreasonable internal structure of the steel industry, resulting in high consumption of hot metal, sinter, coke and ores; (3) low continuous casting ratio and low ingot temperature,