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为了探索高、低反应性焦炭搭配对高炉块状带含铁炉料还原的影响,通过模拟高炉块状带温度场和气体成分条件,研究了搭配不同比例的高反应性焦炭对含铁炉料静态还原的影响规律。结果表明,在温度为900℃和CO体积分数为32.5%的条件下,随着高反应性焦炭比例的增加,料层中Boudouard反应的发展程度加剧,固体物料温度降低。当高反应性焦炭质量配比为50%时,含铁炉料还原度提高9.13%。因此,高、低反应性焦炭的合理搭配有望能降低高炉冶炼的能耗。
In order to explore the effect of coke with high and low reactivity on the reduction of iron-bearing charge in blast furnace block, the temperature field and gas composition of blast furnace block were simulated to study the static reduction of iron-bearing charge with different proportion of highly reactive coke The law of influence. The results show that with the increase of the proportion of highly reactive coke under the conditions of 900 ℃ and 32.5% CO, the development of Boudouard reaction in the material layer aggravates and the temperature of the solid material decreases. When the mass ratio of high-reactivity coke is 50%, the reduction of iron-bearing charge increases 9.13%. Therefore, the reasonable collocation of high and low reactivity coke is expected to reduce the energy consumption of blast furnace smelting.