煤枪结构对煤粉燃烧影响的数值模拟  

Effects of Structure and Parameters of Lance on Combustion of Pulverized Coal

作　　者：郑文燕[1] 但家云 彭觉 蒋友源[2] 赵国建[1] 

机构地区：[1]中南大学能源科学与工程学院,长沙410083 [2]湖南华菱湘潭钢铁有限公司,湖南湘潭411101

出　　处：《金属材料与冶金工程》2016年第2期19-23,共5页Metal Materials and Metallurgy Engineering

基　　金：湖南省重点研发计划国际与区域合作领域项目(2015WK3005);中南大学中央高校基本科研业务费专项资金资助(2015zzts205)

摘　　要：基于流体力学软件,数值模拟了高炉喷煤工序煤枪结构参数(煤枪内径、插枪位置、插枪角度)等对风口前煤粉运动、燃烧过程的影响。结果表明:煤枪内径越大,煤枪出口距风口前端距离越远,插抢角度越大,煤粉颗粒在风口内的停留时间越长,越有利于煤粉的预热和燃烧。Based on the CFD software, numerical simulations are carried out to study the effects of the structure and parameters of the lances（ such as the inserting positions, inserting angles and diameters of the lances） on the movements and combustion of the pulverized coal in blast furnaces. The results show that, the bigger the diameters of lances, the longer the distance between the exits of the lances and the frond ends of tuyeres and the greater the inserting angles are, the longer the pulverized coal stay inside the tuyeres, it is good for the preheating and combustion of the coal.

关 键 词：煤枪结构 煤枪内径 插抢位置 插抢角度 

分 类 号：TF573.7[冶金工程—钢铁冶金]