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攀钢3~#高炉(1200m~3),在矿石品位低、粉末多、渣量大等冶炼条件下,进行大批重正分装冶炼试验取得成功。批重为22t左右,分装率40～60％,炉况顺行,渣铁畅流,焦比降低3～5％,产量提高3～4％,生铁质量保持不变。单位生铁热耗降低,炉喉温度下降20℃,煤气利用率改善,提高炉喉径向CO_2分布曲线的水平。提高攀钢高炉大料批分装效果,着重要开放中心气流。推导出与原料质量有关的适宜批重表达式,计算出攀钢高炉现有冶炼条件下适宜的矿批重。
Panzhihua Iron and Steel 3 ~ # blast furnace (1200m ~ 3), in the ore grade is low, more powder, slag and other large smelting conditions, a large number of positive re-sub-smelting test was successful. The batch weight is about 22t, and the packing rate is 40-60%. The furnace goes on smoothly and the slag flows smoothly. The coke ratio is reduced by 3 ~ 5% and the output is increased by 3 ~ 4%. The quality of pig iron remains the same. Unit heat loss of pig iron decreases, the throat temperature drops by 20 ℃, gas utilization improves, and the radial CO_2 distribution curve of the furnace throat is raised. Panzhihua Iron and Steel improve the bulk material batch effect, an important opening up the center of the air flow. The appropriate weight expression related to the quality of the raw materials is deduced, and the suitable weight of the mine under the existing smelting conditions in Panzhihua Iron and Steel Co. is calculated.