PNEUMATIC SWIRLING FLOW TUNDISH FOR CONTINUOUS CASTING

WIPO Patent Application WO/2021/012201

A1

A pneumatic swirling flow tundish for continuous casting. The pneumatic swirling flow tundish is composed of a tundish body (1) and an external tundish swirling flow chamber (2); the tundish body is communicated with the external tundish swirling flow chamber by means of a trench or groove (3); a plurality of inclined blowing air holes (4) are uniformly arranged in a side wall away a certain height from the bottom of the external tundish swirling flow chamber along the circumference, the trench or groove is positioned in the center of the tundish, the center surface of the trench or groove is coincided with the center surface of the tundish body and the external tundish swirling flow chamber; and the whole pneumatic swirling flow tundish is bilaterally symmetrical. The pneumatic swirling flow tundish for the continuous casting has the advantages of simple structure and low cost, and can implement the rotating flow of molten steel under the driving action of gas, and combines bubble impurity removal to improve the removal efficiency of inclusions in the tundish.

LUO ZHIGUO (CN)
LIU ZHIYUAN (CN)
GU YINGJIE (CN)
YANG WEIDONG (CN)
ZOU ZONGSHU (CN)

PCT/CN2019/097403

January 28, 2021

July 24, 2019

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UNIV NORTHEASTERN (CN)

B22D41/00; B22D11/117

CN103894571A	2014-07-02
US4125146A	1978-11-14
CN202490928U	2012-10-17
CN102773439A	2012-11-14
CN203356556U	2013-12-25
CN108247033A	2018-07-06
JPH04300055A	1992-10-23

SHENYANG DONGDA INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)

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