Structure Optimization of SENs and Upper Nozzles

MOU Jining, YU Yanwen^*()

Online:2020-01-10 Published:2020-01-10
Contact: YU Yanwen
About author:Mou Jining, born in 1963, studied silicate engineering in Metallurgy Department of Xi’an University of Architecture and Technology from 1982 to 1986, and obtained his bachelor’s degree in engineering. He was in charge of 2 national refractories research projects, responsible for and participated in over 10 research projects on refractories for steelmaking and continuous casting in Baosteel or in provincial level, won a second prize of national scientific and technological progress, a provincial science and technology progress award, a second prize of scientific and technological progress, etc. He has published more than 20 papers and owned more than 20 patents.

MOU Jining, YU Yanwen. Structure Optimization of SENs and Upper Nozzles[J]. China's Refractories, 2020, 29(1): 27-30.

Fig. 1 Schematic diagram of steel flow control

Fig. 2 Upper nozzles with two different inner shapes

Table 1 Water simulation conditions

Table 2 Bottom shape of SEN

Bottom type	Mountain shape	Parallel shape without Ar blowing	Concave shape with Ar blowing
SEN edge port

Fig. 3 Flow state in mold

Table 3 Comparison of flow field in mold

Mold width	Mountain shape	Parellel shape	Concave shape
1 300 mm
2 000 mm

Fig. 4 Velocity comparison

Fig. 5 Comparison of average velocity

Fig. 6 Clogging comparison

[1]	Gernot HACKL, Yong TANG, Gerald NITZL, Dennis SCHURMANN, Bernd WILLERS, Sven ECKERT. An Innovative Submerged Entry Nozzle Design for Billet and Bloom Casting [J]. China's Refractories, 2021, 30(2): 45-50.
[2]	YANG Wengang, LI Hongxia, LIU Guoqi, MA Tianfei, QIAN Fan, YU Jianbin. Structure Design of SEN for High Efficiency Thin Slab Continuous Casting [J]. , 2018, 27(1): 28-29.
[3]	QIAN Fan*,LI Hongxia,LIU Guoqi, YANG Wengang, YU Jianbin, MA Weikui. Damage Mechanism and Countermeasures of Carbon Bonded Refractories for Continuous Casting [J]. , 2016, 25(3): 42-47.
[4]	WANG Jianzhu, ZHAO Junxue. Finite Element Analysis on Thermal Stress of SEN [J]. , 2015, 24(2): 51-54.

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