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根据鞍钢炼铁厂1986年的主要经济技术指标及炉顶、炉喉煤气分析数据进行统计分析结果,认为在目前鞍钢原燃料条件下.要想达到高产、优质、低耗的目的,必须改进操作力法,提高高炉利用系数,CO 利用率;应使炉喉 CO_2分布曲线成喇叭形,使 CO_2在中心区保持在10%,边缘保持在比中心区高2%,炉喉在16%以上,炉顶在17%以上(这样,燃料比可降至540kg/t 以下);应采用正同装、正分装的重边沿的装料制度、适宜的批重;应以大风、高压、全风操作来打通中心煤气通路为主的操作方针来进行强化冶炼;炉顶压力应提高到0.09MPa 以上,风量达到炉容积的两倍以上。
According to the main economic and technical indexes of Anshan Iron and Steel Company in 1986 and the statistical analysis of the top and throat gas analysis data, we think that under the condition of the raw material of the Anshan Iron and Steel Company, in order to achieve the goal of high yield, high quality and low consumption, we must improve the operation Force method to improve the blast furnace utilization coefficient, CO utilization; should make the throat CO_2 distribution curve into a trumpet shape, so that the CO_2 in the central area remained at 10%, the edge is maintained at 2% higher than the central area, the throat at 16% The top of the furnace should be above 17% (in this way, the fuel ratio can be reduced below 540kg / t); the loading system of positive, positive and heavy edge should be adopted, appropriate batch weight should be used; gale, high pressure, Operation to open up the center of the gas-based approach to the operation of enhanced smelting; roof pressure should be increased to 0.09MPa above, the volume of wind to achieve more than twice the furnace volume.