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为解决半钢炼钢终点渣稀、氧化性高,在120t转炉不倒炉出钢时存在炉口涌渣的问题,采取在转炉吹炼终点,炉内加入冷钢渣500～1 000kg和碳质材料50～200kg进行压渣调渣试验,可达到压渣、稠渣与不倒炉直接出钢的目的。与常规工艺相比,减少了出钢下渣量,钢中w(P)多降低0.004%,钢中w(S)多增加0.001%,减少脱氧合金消耗62kg/炉,降低炉衬侵蚀速度0.1mm/炉,减少溅渣护炉料消耗200～300kg/炉,缩短溅渣时间1.0～1.5min,获得了较好的溅渣护炉效果。采用该技术既节约了原材料,提高了钢水质量,又开发了钢渣资源综合利用的新途径。
In order to solve the semi-steel steel slag end of the scarcity, high oxidation, 120t converter does not pour out the furnace when there slag mouth slag, blowing converter at the end of the furnace, the furnace by adding cold steel slag 500 ~ 1 000kg and carbon Material 50 ~ 200kg dregs slag adjustment test can reach the slag, slag and not inverted furnace direct tapping purposes. Compared with the conventional process, the amount of slag under tapping is reduced, the w (P) in steel is decreased by 0.004%, the w (S) is increased by 0.001%, the deoxidization alloy is reduced by 62kg / furnace and the lining erosion rate is reduced by 0.1mm / Furnace to reduce slag splashing furnace charge consumption 200 ~ 300kg / furnace, shorten the splashing time 1.0 ~ 1.5min, get a better slag splashing effect. The use of this technology not only saves raw materials, improves the quality of molten steel, but also develops new ways for the comprehensive utilization of slag resources.