共查询到20条相似文献,搜索用时 140 毫秒
1.
从转炉溅渣护炉机理角度,对炉衬损坏、终渣调整、溅渣工艺参数进行了探讨,改进冶炼低碳钢时的操作工艺,优化溅渣护炉工艺,提高了溅渣层的抗侵蚀能力,延长了炉衬寿命。 相似文献
2.
第一炼钢厂30吨转炉溅渣护炉的工业试验 总被引:1,自引:0,他引:1
本文在简介转炉溅渣护炉模拟试验的基础上,详述其工业试验情况。其中包括:溅渣护炉工艺过程和操作要点;溅渣后炉衬侵蚀速度;不同操作对溅渣效果的影响等。并对转炉溅渣护炉工艺进行了探讨,对其效益进行了初步分析。 相似文献
3.
莱钢银山型钢炼钢厂转炉炉体维护技术取得重大突破,转炉加入焦炭粉技术和碳镁球技术分别取得较好的溅渣护炉效果,溅渣时间缩短2min,不仅减少了炉渣氧化铁含量,增强了溅渣层的抗侵蚀能力,还彻底解决了冶炼低碳品种钢对炉衬的侵蚀问题。 相似文献
4.
5.
6.
7.
南京钢铁联合有限公司中厚板卷厂转炉终点钢液w(C)一般为0.03 %~0.06 %,炉衬侵蚀严重且溅渣护炉效果差.进行了复吹转炉溅渣护炉工艺物理模拟研究,优化了溅渣护炉工艺参数;炉渣采用改渣剂进行改质的热态实验,并在生产中正常应用,获得很好效果. 相似文献
8.
9.
10.
结合本钢炼钢厂180t转炉生产实践,从转炉炼钢工艺中的各种因素对炉衬的侵蚀机理入手,提出了完善的日常炉衬维护的具体措施,强化了溅渣护炉的应用技术,加强了炉衬的维护,提高了转炉经济炉龄,为炼钢生产节约了成本,创造了更大利益空间。 相似文献
11.
12.
介绍了湘钢二炼钢厂50t转炉溅渣护炉技术的应用与效果,主要探讨了冶炼造渣剂,溅渣工艺参数控制及溅潭护炉对钢水质量的影响,提出了今后的改进方向。 相似文献
13.
14.
15.
16.
西钢120t转炉采用科学设计北方烘炉方案,采取分区段控制溅渣操作要点,严格落实操作工艺要求和步骤,实现北方钢厂大型转炉第一代炉役接近20000次的突破,取得良好的效果。 相似文献
17.
《钢铁冶炼》2013,40(6):521-528
AbstractConverter lining life is an important technical and economic concern of the steelmaking process. An increase in lining life decreases refractory consumption and reduces steelmaking costs. Increased availability of furnaces increases production rates and steel yield. Extended lining life was achieved by utilising the slag as a consumable refractory by splashing it over the lining. Slag splashing is a simple and effective technique followed worldwide to increase the converter life. This paper highlights the online study on various operating parameters and slag characteristics for consistent slag splashing in a 130 t converter. Parameters such as lance height, blow pattern, gas flowrate, bottom purging flowrates, tapping temperature, combination of gunniting with splashing, slag height and slag chemistry, were investigated. An optimised slag has been developed which served effectively to balance the lining erosion during blowing and maintain a uniform thickness throughout the campaign. Some innovative practices and design changes are also discussed. The developed slag regime and optimised parameters have helped in increasing the converter life to an international benchmark. JSW Steel has achieved the converter lining life of 13 771 heats, which is the highest ever recorded in India. 相似文献
18.
Converter off gas, an important energy resource for steel enterprises is one of the weak points in the recovery and utilization of secondary energy resources. To improve the level of recycling converter off gas in steel plants, a novel approach to recycle CO2 separated from converter off gas or other off gas for the green slag splashing technique was developed, and the CO2 equilibrium conversion ratio of the green CO2 slag splashing in different technological conditions was calculated by HSC software. Furthermore, the experiments of CO2 injected into melting converter slag were carried out, and the influence factors of the green CO2 slag splashing technique were analyzed. The results showed that the carbon amount for smoothly CO2 slag splashing was about 4.0%. 相似文献
19.
20.
介绍了宣钢一钢轧厂溅渣复吹转炉的两种渣补护炉技术,在近几年的生产实践中取得了显著效果.使用镁质自流料补炉前大面次数由月均40 ~45次降至10 ~ 15次,维护炉衬的耐材成本每月可节约14.7万元,炼钢生产作业率提高,炉况稳定,生产顺行. 相似文献