Anti-clogging of submerged entry nozzle through control of electrical characteristics

Electrical characteristics of submerged entry nozzle (SEN) and non-metallic inclusions in molten steel were studied by both laboratory experiments and industrial tests, whereas the effect of surface charge on SEN clogging was also investigated. Results demonstrated that excess electric charges exist...

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Bibliographic Details
Published inCeramics international Vol. 43; no. 15; pp. 13025 - 13029
Main Authors Yu, Jingkun, Yang, Xin, Liu, Zhaoyang, Hou, Xinghui, Yin, Zoukai
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 15.10.2017
Subjects
Clogging
Electric double layer
Electrical characteristic
Submerged entry nozzle
Electric double layer
Clogging
Submerged entry nozzle
Electrical characteristic
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Summary:Electrical characteristics of submerged entry nozzle (SEN) and non-metallic inclusions in molten steel were studied by both laboratory experiments and industrial tests, whereas the effect of surface charge on SEN clogging was also investigated. Results demonstrated that excess electric charges existed on inner surface of test nozzle, possibly causing the movement of alumina particles towards to the nozzle; the clogging of SEN would be restrained by SEN connection to the ground, to release excess electric charges generated on inner surface of SEN.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2017.06.133