摘要
针对纯镁和镁基喷吹脱硫中液态脱硫渣较难扒除,引起转炉出钢回硫高等问题,提出了一种液态渣喷吹改性除硫新工艺。通过水力学模型试验,对比研究了直接投加改性剂、投加后搅与喷吹改性新工艺的改性效果和影响因素。结果表明:与目前使用工艺相比,提出的喷吹改性新工艺具有优良的反应动力学条件,可显著增大液面处改性剂的反应面积和数量。工业性试验表明,使用脱硫液态渣改性除硫新工艺后,有效降低了液态脱硫渣带入引起的转炉出钢回硫,保证了高附加值低硫钢的稳定生产。
Because the liquid desulphurizing slag was difficult to skim, there was a high resulphurization in BOF during hot metal desulphurization using magnesium. To solve above problems, a new modifying technology of sulphur removal was put forward according improving reaction dynamic conditions between modifiers and liquid slags. The effect and influencing factors of original and new technologies were studied by hydraulic model experiment. The experiment results showed that. comparing with traditional technology, new modifying technology had excellent dynamic conditiom the reaction area and the number of reaction modifiers were increased significantly. Furthermore, the industrial practice indicated that. the resulphurization in BOF from liquid desulphurizing slag decreased remarkably after new technology used which ensured the stable production of high value-added low sulfur steel.
出处
《炼钢》
CAS
北大核心
2014年第1期41-45,共5页
Steelmaking
关键词
铁水金属镁或镁基喷吹脱硫
液态脱硫渣
水模试验
回硫
喷吹改性
动力学条件
hot metal desulphurization using magnesium
liquid desulphurizing slag
hydraulic model experiment
resulphurization
injecting modify
dynamic conditions
