RH-MFB传质特性的物理模拟研究  

Water Modeling on Characteristics of Mass Transfer in RH-MFB Reactor

作　　者：舒宏富[1] 张建平[1] 宋超[1] 邹宗树[2] 

机构地区：[1]马鞍山钢铁股份公司技术中心,安徽马鞍山243000 [2]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《炼钢》2005年第6期37-40,共4页Steelmaking

摘　　要：采用NaOH稀溶液吸收CO2实验来模拟120t RH-MFB顶吹O2条件下真空脱碳反应过程的传质现象。在1∶5.45的水模型中,考察了提升气体流量、顶吹气体流量、顶枪枪位、插入管内径、浸入深度、喷嘴个数与气泡行程等因素对传质的影响,测定不同参数组合条件下的容量传质系数,进而考察容量传质系数与气体分压等的关系。结果表明,容量传质系数随提升气体流量、顶吹流量、气相分压、插入管内径和浸入深度的增大而增大。The mass transfer characteristics of vacuum refining process under the top oxygen blown conditions in a RH-MFB unit are simulated by experiment on absorption of CO2 using NaOH diluted solution, and influences of such a few factors as the lifting gas flow rate, top blow gas flow rate, top lance height, diameter of the up and down snorkels, immersion depth of the snorkels and number and distribution of nozzles on the mass transfer investigated by a 1 ： 5.45 water model of a 120 t RH-MFB unit and the volumetric mass transfer coefficients measured under the various parameter combinations and the relation between the volumetric mass transfer coefficients and partial pressure of CO2 further clarified. Results indicate that the mass transfer coefficients increase with grow-up of the lifting gas flow rate, top blow gas flow rate, partial pressure of CO2, inner diameter of snorkel and immersion depth of snorkel.

关 键 词：容量传质系数 传质特性 物理模拟 

分 类 号：TF769.4[冶金工程—钢铁冶金]