喷吹CO_2作为冷却剂的转炉炼钢工艺探索  

Exploration of carbon dioxide injection as coolant of converter steelmaking technology

作　　者：盖东兴[1] 

机构地区：[1]中冶南方工程技术有限公司技术研究院,湖北武汉430223

出　　处：《炼钢》2012年第4期40-42,58,共4页Steelmaking

摘　　要：转炉炼钢中期进入碳的剧烈氧化期而使炉温迅速升高,此时需要加入适量冷却剂抑制炉温过高。可以通过双流道氧枪实现用CO2气体作为冷却剂,替代铁矿石、氧化铁皮等固体冷却剂。理论分析可知,CO2作为冷却剂具有与铁矿石相当的冷却效果,同时可以更好地控制转炉钢水温度及成分,简化转炉炼钢设备及工艺。另外,用CO2作为冷却剂其化学反应产物为CO,可以提高转炉煤气的品位,降低整个转炉炼钢工艺的综合能耗。The temperature of converter rises quickly at the oxidation period and in this juncture some coolant should be put into the converter to control the temperature of converter at a proper level. In the new technology CO2 is blown into bath of the convert- er as coolant to replace the solid coolants such as iron ore, iron scale and so on. By theo- retical analysis it is known that CO2 as coolant possesses the equal cooling ability in comparison with iron ore and at the same time by use of CO2 the temperature and com- positions of the liquid steel in the converter can be easily controlled and the equipments and process for converter steelmaking can be simplified. On the other hand the reactant of CO2 as coolant is CO which can raise the posite energy consumption of the converter quality of converter gas and reduce the corn steelmaking.

关 键 词：转炉炼钢 双流道氧枪 冷却剂 二氧化碳 

分 类 号：TF711[冶金工程—钢铁冶金]