单嘴浸渍管RH和弓形浸渍管RH的应用效果

doi:10.13228/j.boyuan.issn1006-9356.20190401

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Abstract The application effect of vacuum refining of ultra-low carbon steel in single snorkel structure RH furnace and arched snorkel structure RH furnace was tested in the field of Jingye Iron and Steel Co., Ltd., the changes of gas flow rate and vacuum degree of two kinds of RH furnaces were recorded. And the mass percentage of w ([C]) and w ([Mn]) in molten steel was detected by multiple sampling, the decarburization effect and mixing time of two kinds of RH furnaces were analyzed and compared. The results were that the vacuum degree of both kinds of RH furnaces could be reduced to less than 100 Pa within 6 min of vacuum treatment, and stabilized at about 50 Pa after 10 min. Within 20 min of vacuum treatment, w ([C]) in steel refined by the former RH furnace could be basically removed to 0.001 0%-0.001 5%, while w ([C]) in steel refined by the latter RH furnace could be removed to about 0.000 5%. And the decarburization rate of the latter was significantly faster than that of the former. The mixing time of the former RH furnace and the latter RH furnace was about 3 and 1 min, respectively. The results showed that the smelting effects of the latter RH furnace were obviously better than that of the former RH furnace, and the arched snorkel was more suitable for the small tonnage RH vacuum refining furnace than single snorkel.

Key words： RH snorkel decarburization effect mixing time

Received: 22 August 2019

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	Articles by authors
	WANG Sheng
	DOU Wei-xue
	XU Hai-qiang
	CHANG Li-shan
	ZHI Xin-long

Cite this article:

WANG Sheng,DOU Wei-xue,XU Hai-qiang等. Application effects of single snorkel RH and arched snorkel RH[J]. China Metallurgy, 2020, 30(3): 60-63.

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http://www.zgyj.ac.cn/EN/10.13228/j.boyuan.issn1006-9356.20190401 OR http://www.zgyj.ac.cn/EN/Y2020/V30/I3/60

[1]	任世岗,周楠,张志明,等. 超低碳钢炉外精炼工艺优化及应用[J]. 南方金属,2018 (5):5.
[2]	常立山,郑传飞,呙雄文,等. RH开发冷轧超低碳钢的工艺改进[J]. 中国冶金,2010,20(7):34.
[3]	刘浏. RH真空精炼工艺与装备技术的发展[J]. 钢铁,2006,41(8):1.
[4]	王强. 采用LD-RH-CC工艺生产低碳铝镇静钢技术开发与实践[J]. 中国冶金,2015,25(3): 25.
[5]	杨乃恒,巴德纯,王晓冬,等. 钢水真空脱气及炉外精炼技术的回顾与评述[J]. 真空,2017,54(4):1.
[6]	成国光,芮其宣,秦哲,等. 单嘴精炼炉技术的开发与应用[J]. 中国冶金,2013,23(3): 1.
[7]	北京科技大学. 一种单嘴真空精炼设备:中国,CN88220195.6[P]. 1989-07-12.
[8]	北京科技大学. 多功能复吹单嘴精炼炉:中国,CN00235854.9[P]. 2001-05-30.
[9]	任志峰, 罗志国, 邹宗树. 弓形浸渍管RH钢液流动行为的物理模拟[J]. 炼钢,2019,35(1): 12.
[10]	东北大学. RH真空精炼装置所用的浸渍管:中国,CN103834766A[P]. 2014-06-04.