高炉中心加焦制度下煤气流速度与压力场模拟

不同的布料制度决定炉料的分布状态与不同部位炉料孔隙度的大小,进而影响煤气流在炉内的速度与压力分布,而煤气流的分布直接影响高炉顺行、煤气流利用率与料柱透气性的优劣.为促进煤气流合理分布,进一步探索高炉在中心加焦条件下炉内不同部位的煤气流速与压力变化规律,借助数值模拟方法,建立二维高炉煤气流流动物理模型,基于多孔介质算法并...

Simulation of gas flow velocity and pressure field under central coking system in blast furnace

Different distribution modes determine the distribution state of the charge and the porosity size of the charge in different parts,and then affect the speed and pressure distribution of gas flow in the furnace. The distribution of the gas flow directly affects the smoothness of blast furnace, the utilization rate of gas flow and the permeability of material column. In order to promote the reasonable distribution of gas flow to further explore the gas velocity and pressure change rules in different parts of the furnace under the condition of central coke adding, a two-dimensional physical model of blast furnace gas flow was established with the help of numerical simulation method. Based on the porous medium algorithm and user-defined parameters, the velocity and pressure distribution of gas flow through different parts of a 4 000 m3 blast furnace was simulated under the mode of central coke adding, which was expected to provide basic theory and data support for blast furnace smelting.