解决中天钢铁高炉炉壳上涨实践

doi:10.13228/j.boyuan.issn0449-749x.20190154

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Abstract The rise of blast furnace shell is a difficult problem faced by some blast furnaces in iron and steel enterprises in recent years, and controlling the rise of blast furnace shell is of great significance to a long life, safe and stable operation of blast furnaces. Aiming at the problem of furnace shell rising in Zenith blast furnace, based on the calculation of pressure vessel blind plate force, combined with long-term analysis and treatment practice, the key reason of furnace shell rising is determined, which is the blind plate force caused by furnace pressure; and five steps of furnace shell rising are given: deformation of furnace bottom plate-deformation of refractory in furnace-crack between refractories-harmful element enrichment along the crevice-furnace shell gradually grows. On this basis, the double bottom slab structure was developed and successfully applied in several blast furnaces of Zenith Iron and Steel Co., Ltd. to solve the problem of furnace shell rising. Finally, the focus of exploring and the reasons for the rise of blast furnace shell should be shifted from raw materials, operation, construction, and refractory materials to the strength of blast furnace bottom plate.

Key words： blast furnace shell rising mechanics bottom plate blind plate force

Received: 11 April 2019

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	Articles by authors
	LU Wei-qiang
	ZHANG Jun-jie
	DUAN Guo-jian
	XU Dong-sheng
	PEI Yuan-dong

Cite this article:

LU Wei-qiang,ZHANG Jun-jie,DUAN Guo-jian等. Practice on solving problem of blast furnace shell rising in Zenith Steel Group Co., Ltd.[J]. Iron and Steel, 2020, 55(2): 42-47.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20190154 OR http://www.chinamet.cn/Jweb_gt/EN/Y2020/V55/I2/42

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