浸入式水口结瘤机制及优化措施  

Clogging mechanism and optimization measures of submerged entry nozzle

作　　者：杜金吉 陈玉娥 左小坦 赵立 任博 王恩会 侯新梅[1] Du Jinji;Chen Yu’e;Zuo Xiaotan;Zhao Li;Ren Bo;Wang Enhui;Hou Xinmei(Beijing Institute of Carbon Neutralization,University of Science and Technology Beijing,Beijing 100083,China;不详)

机构地区：[1]北京科技大学碳中和研究院,北京100083 [2]芜湖新兴铸管有限责任公司,安徽芜湖241002

出　　处：《耐火材料》2024年第5期454-460,共7页Refractories

基　　金：国家自然科学基金杰出青年基金项目(No.52025041);国家自然科学基金面上项目(52174294)。

摘　　要：在钢铁实际生产过程中,浸入式水口结瘤会对结晶器流场的稳定性产生严重影响。这种现象不仅影响了连铸过程的顺利进行,还可能导致结瘤物剥落,从而降低铸坯质量。阐述了浸入式水口结瘤机制的研究现状,从优化水口结构、优化水口材质、提高钢液洁净度以及施加外部电场共4个方面总结了防止浸入式水口结瘤的措施,并对浸入式水口防结瘤未来的研究方向进行了展望。In the actual process of steel production,the submerged entry nozzle clogging seriously affects the stability of the flow field of the mould.This phenomenon not only affects the proceeding of the continuous casting process,but also may cause the nodules to flake off,thus reducing the quality of the casting billets.The research status of the clogging mechanism of the submerged entry nozzle is described.The measures to prevent the clogging of the submerged entry nozzle are summarized from four aspects:optimizing the structure and material of the nozzle,improving the cleanliness of the molten steel and applying the external electric field.The future direction of the anti-clogging of the submerged entry nozzle is prospected.

关 键 词：浸入式水口 结瘤机制 夹杂物 连铸 

分 类 号：TQ175[化学工程—硅酸盐工业]