高炉回旋区湍流特性  

Turbulent Flow Characteristics Analysis of BF Raceway

作　　者：郭术义[1] 吴延荣[2] 侯艳君[1] 

机构地区：[1]华北水利水电学院机械学院,郑州450011 [2]山东建筑大学信息与电气工程学院,济南250014

出　　处：《有色金属》2009年第3期101-104,共4页Nonferrous Metals

基　　金：山东省科学技术发展计划项目(012050107);华北水利水电学院高层次人才科研启动项目资助

摘　　要：利用计算流体力学软件CFX,对回旋区内焦炭颗粒的运动、热解、燃烧及气体内的化学反应、气体湍流特性等进行分析,并通过回旋区红外测温,研究高炉回旋区内的湍流特性。回旋区内气体速度、温度、CO2和O2等组分分布规律的模拟结果与温度测量结果以及高炉操作实践基本一致。回旋区内绝大部分气体速度小于16m/s。数值计算温度大于红外测量温度。在颗粒粒子数目为1000的情况下,在z=0xy平面内CO气体的峰值浓度为17%,CO峰值达到了27.4%。The blast furnace （BF） raceway＇s turbulent flow characteristics are investigated by analysis of the coke movement, coke pyrogenation, coke combustion, chemical reactions among gas components and gas turbulent with the CFX software, and temperature measure of the BF raceway by infrared ray. The numerical simulation results of the distributing rules of gas velocity, temperature, CO2 and O2 , etc. are consonant with the temperature measuring results and operation practice. The velocity of most gas in turbulent area are less than 16m/s. The temperature computed by the numerical resolution is larger than the infrared measurement temperature. Under the condition of 1000 coke particles, the maximum concentration of CO2 is 17% , and the maximum concentration CO is 27.4% in the z = 0 xy plane.

关 键 词：冶金技术 高炉 湍流特性 回旋区 

分 类 号：TF536.1[冶金工程—钢铁冶金] TF531