中文摘要：

利用已建立的COREX工艺系统模拟模型考察了熔化气化炉和竖炉匹配操作条件及在匹配操作范围内系统的能耗和能量利用。结果表明：煤中挥发分含量对煤耗影响很大,配煤控制应是COREX工艺操作关键一环;挥发分含量增加,与之相匹配操作的熔化气化炉出口荒煤气氧化度可相应增加;提高熔化气化炉出口荒煤气氧化度和降低其温度均可提高能量利用率;COREX工艺系统的最大能量利用率为50%左右,合理有效地利用COREX富产煤气是解决该工艺能量利用问题的关键;荒煤气温度与竖炉入口还原煤气温度相比,应该维持在更高温度。

英文摘要：

System simulation is carried out based on the COREX process simulation model. The coal consumption increases with the increasing of the volatile content in coal. The control of volatile in coal is an important step for COREX＇s iron-making. The coal consumption decreases with the increasing of the oxidation degree of raw gas out of the melter-gasifier. The energy utilization ratio of COREX process increases with the increasing of the oxidation degree or decreasing of the temperature of raw gas out of the melter-gasifier. The maximum value of the energy utilization ratio is just over 50%. The temperature of raw gas should have a much higher value, compared with the temperature of reducing gas entering shaft furnace. The requirement of using much more kinds of coal and facilitating process operations is a key reason.