一、前言近年来对高炉煤气流的合理分布,提出了“喇叭花型”、“展翅型”(即中心气流型)和双峰型(即两道气流型)等不同观点,在认识上还没有达到统一。本文分析了国内外高炉几种典型的炉喉煤气径向CO_2%分布曲线,认为可以用三个煤气流分布参数来表达其分布型式。这三个参数为:△_1(均衡度):△_2(平坦度);A_3,(边缘疏松度)。 I. INTRODUCTION In recent years, there have been different opinions on the rational distribution of blast furnace gas flow, such as “trumpet type”, “wingspan type” (ie central airflow type) and bimodal type (ie two types of airflow type) Reunification. In this paper, the typical radial gas CO2 distribution curves of several typical blast furnace lanes are analyzed. It is considered that the distribution patterns of the three gas flow distribution parameters can be expressed. The three parameters are: △ _1 (equilibrium): △ _2 (flatness); A_3, (edge ​​porosity).