Circumferential Distribution Characteristics of Airflow in Blast Furnace Hot Blast Systems
Circumferential Distribution Characteristics of Airflow in Blast Furnace Hot Blast Systems
复制标题
高炉热风系统气流周向分布特性
DOI：
10.4028/www.scientific.net/amr.201-203.1798
复制
发表时间：
2011-02
期刊：
影响因子：
--
通讯作者：
Kou, Mingyin
中科院分区：
文献类型：
--
作者：
Liu, Chengsong;Wu, Shengli;Xu, Jian;Fu, Changliang;Kou, Mingyin
通过建立高炉热风系统的数学模型，模拟研究了环管及各风口内气流的周向分布特性。解决了国内外关于环管气流周向分布特性的争论。结果表明，在炉膛和炉膛断面压力分布均匀的前提下，除最近的风口外，由于涡流的存在，靠近主管的风口气流速度均低于远离主管的风口。但各风口风速的波动幅度及其对风口回旋区深度的影响都很小，可以忽略不计。
The circumferential distribution characteristics of airflow in bustle pipe and each tuyere have been simulated and researched through establishing mathematical model of blast furnace (BF) hot blast systems. The disputes on the circumferential distribution characteristics of airflow in bustle pipe at home and abroad were settled. The results show that, under the premise of uniform pressure distribution in hearth and tuyere section area, except that of the nearest ones, the velocity of airflow in these tuyeres which are near to the main pipe is lower than those far away from the main pipe because of the existence of vortex. However, both the fluctuation range of all tuyeres’ air velocity and its influence on tuyere raceway depth are small and can be ignored.