摘要
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 problems of dilute slag, high oxidation and surging of slag at the mouth of furnace in converter tapping without turn-down of the furnace, 500 to 1 000 kg cold slag and 50 to 200 kg carbonaceous materials have to be charged into the furnace at the end-point of converter blowing so as to achieve the purpose of pressing slag, thickening slag and tapping without turn-down of furnace. In comparison with the conventional process by adoption of the new one the deslagging quantity is reduced, [P] decreased by 0. 004 %, [S] increased by 0. 001 %, consumption of deoxidizer and alloy cut down by 62 kg/heat, erosion rate of furnace lining dropped down by 0. imm/heat, consumption of furnace materials for furnace protection by slag splashing reduced by 200 to 300 kg/heat and the slag splashing time shortened by 1.0 to 1.5 rain and thus better results of furnace protection by slag splashing have been achieved. By introduction of the new technology not only the raw materials are saved and the liquid steel quatity improved, but a new approach to the comprehensive utilization of the steel slag resource also developed.
出处
《炼钢》
CAS
北大核心
2010年第4期16-19,共4页
Steelmaking
关键词
不倒炉出钢
钢渣
压渣
调渣
转炉
tapping without turn-down
steel slag
pressing slag
adjusting Slag
converter
