一、问题的提出在高炉滴下带内,除了逆流运动的气、液以外,则是由活跃的和呆滞的焦炭组成的充填层。前者是燃烧带焦炭的主要补充者,其占据的空间是下部气、液的主要通道。后者(亦称死料柱)是下部热量的调节器。它们拥有的热量和温度水平对高炉下部的物理化学反应与热交换过程有重大影响。日本君津三号高炉1982年5月停炉后的调查表明:风口平面上径向生铁含硅量的变化与相应的焦炭温度有密切关系(见图1)。该炉在停炉前的风口取样亦发现焦炭中SiO_2含量随焦炭温度的升高而下降(见图2)。有些高炉还以与实际焦炭温度有关的理论焦炭温度作为预测炉缸热状态的热量指标 First, the issue put forward in the blast furnace drip band, in addition to the counter-current movement of gas, liquid, it is composed of active and dull cofacock filling layer. The former is a major contributor to the combustion of coke with the space occupied by the lower gas, liquid main channel. The latter (also known as dead column) is the regulator of the lower heat. The level of heat and temperature they have has a significant impact on the physicochemical and heat exchange processes in the lower part of the blast furnace. A survey of the blast furnace at Junji No.3 in Japan in May 1982 showed that the change of the silicon content of the radial pig iron in the tuyere plane is closely related to the temperature of the corresponding coke (Figure 1). The furnace sampling in the tuyere before shutdown also found that the SiO 2 content in coke decreased with increasing coke temperature (see Figure 2). Some blast furnaces also use the theoretical coke temperature, which is related to the actual coke temperature, as a measure of the calorific value of the hot state of the hearth