ABSTRACT

Bernoulli′s principle was adopted to analyze gas flow characteristics in the cohesive zone, and the numerical condition for forming a gas flow whirlpool in the cohesive zone was calculated, a method of controlling the burden matrix was thus obtained and applied to industrial production. The results show that the numerical condition for forming a gas flow whirlpool field in the cohesive zone are obtained by the energy conservation law. Adopting this numerical condition, by ensuring a reasonable ore–coke ratio in the ore zone, moving the burden matrix angle outward to the wall of blast furnace, narrowing the burden matrix angle difference of the ore, and increasing the area of the ore-free zone, to form a funnel of certain depth in the ore-free zone, which is conducive to forming a gas flow whirlpool field that the indexes of blast furnace are obviously improved.

摘要

采用伯努利原理分析了粘性区气流特性，计算了粘性区形成气流漩涡的数值条件，得出了控制炉料矩阵的方法，并将其应用于工业生产。结果表明，由能量守恒定律得到了粘性区形成气流漩涡场的数值条件。采用该数值条件，通过保证矿区合理的矿焦比，将炉料矩阵角向外移至高炉炉壁，缩小矿石的炉料矩阵角差，增大无矿面积。区，在无矿区形成一定深度的漏斗，