基于烟气分析的转炉熔池碳含量动态计算模型及应用  

Introduction and Application of Dynamic Calculation Model of Carbon Content in Molten Steel by BOF Off-gas Analysis

作　　者：杨龙飞[1] 郑新泉[1] 万成林[1] 王莉华[1] 周琴[1] 

机构地区：[1]首钢水钢炼钢厂,贵州六盘水553028

出　　处：《水钢科技》2015年第1期39-46,共8页Shuigang Science & Technology

摘　　要：为了提高生产效率，提高转炉炼钢终点命中率，开发了一种基于激光烟气分析技术的新型转炉炼钢动态控制模型系统，对炼钢过程碳含量进行实时预报，并对终点碳温进行精确预报。该系统采用激光式烟气分析仪实时检测烟气中的CO、CO2含量及烟气流量，以冶金热力学、动力学及物理化学平衡为基础建立分析模型，结合数学统计分析，对不同阶段的脱碳规律进行分析，并根据钢厂冶炼操作实际情况进行修正，实现对转炉吹炼过程及终点碳含量的准确预报。In order to improve production efficiency and endpoint hitting rate of BOF steelmaking, a new model system based on laser analysis of off-gas used for dynamic control of BOF steelmaking has been developed to forecast carbon content in molten steel during steelmaking in real time and pre- cisely predict carbon and temperature of molten steel at the end point. The system uses a laser gas analyzer to test CO, CO2 and flow rate of off-gas, constructs an analysis model on the basis of metallurgical thermodynamics and dynamics and physical chemical equilibrium, analyzes decarbonization in the different stages by mathematical and statistical methods, calculates and modifies carbon content in carbon content in molten steel and realizes precise forecast of carbon content in molten steel during oxygen blowing and at the endpeint.

关 键 词：转炉炼钢 激光烟气分析 熔池碳含量 动态计算模型 终点预报 

分 类 号：TF71[冶金工程—钢铁冶金]