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以流体力学有关理论为基础,应用FLUENT软件建立高炉鼓风系统的模型。根据高炉操作工艺的需要,通过改变高炉某几个风口的直径,堵塞某几个风口,模拟研究这种操作对各风口间风量分配的影响;模拟研究风口回旋区的形状,并确定风量、风压、焦炭粒度和风口直径等对风口回旋区形状的影响。结果表明,堵塞风口将导致各风口间风量分配的不均匀性加大;风口直径减小时,该风口处的风量将显著减少;风口回旋区深度随风量、风温、风口直径以及风口插入深度增加而增加,随风口前焦炭粒度的增加而减少。
Based on the theory of fluid mechanics, a model of blast furnace blower system is established by using FLUENT software. According to the needs of blast furnace operation process, by changing the diameter of a few tuyeres in the blast furnace and plugging several tuyeres, the influence of this operation on the distribution of air volume between tuyeres was simulated. The shape of tuyeres in tuyere was simulated and air volume, Pressure, coke particle size and tuyere diameter on the shape of tuyere raceway. The results show that the blockage of the tuyere will lead to the increase of the nonuniform distribution of the air volume between the tuyeres. When the tuyere diameter is reduced, the air volume at the tuyere will be significantly reduced. The depth of the tuyere area will vary with the air volume, air temperature, tuyere diameter and tuyere insertion depth Increase and increase, with the tuyere coke particle size increases.