【摘要】 在实验室SiC管炉上采用分批上置法加料并浸入吹O2,在1 350℃下进行了模拟铁水罐喷吹脱硅的实验研究。所研究的3种氧化剂均可达到铁水罐喷吹脱硅的目的,其脱硅能力:转炉尘>轧钢铁皮>铁精矿粉。浸入吹入部分气体O2,可显著提高前期(前10min内)脱硅反应速率,大大缩短处理时间,且减少铁水温降。推荐了喷吹脱硅剂配方和用量,采用转炉尘作喷吹脱硅剂,脱硅效果最好,且不必额外配入CaO,并大幅降低制粉设备磨损和运行电耗,应优先选用。更多还原

【Abstract】 An experimental study was carried out on simulation of hot metal injection desiliconization in ladles by way of multi-batches top addition of desiliconization reagents plus partial immersion blowing of gaseous oxygen in SiC tube furnace at 1 350 ℃.Three kinds of desiliconization reagents can all meet the requirements of injection desiliconization in ladles with desiliconization capacity of LD dust>mill scale>iron concentrates.Partial immersion blowing of gaseous oxygen can obviously increase the desiliconization velocity and greatly shorten treatment time.The optimum compositions and usage of the injection desiliconization reagents are recommended and the coverter dust without addition of CaO is proved to be the best desiliconizer.Using it as the desiliconizer not only the wear of the grinding machinery can be reduced,but the power consumption in operation also greatly lowered.更多还原