高炉炉缸侵蚀特征及侵蚀原因探析

doi:10.13228/j.boyuan.issn0449-749x.20180033

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Abstract To further study erosion characteristics of carbon brick and common causes of lining erosion of blast furnace hearth，two domestic blast furnaces were investigated and the situations were analyzed. Based on the field data，the thickness of the hearth and the floating height of dead man were calculated，respectively. The root cause of erosion of hearth was identified，and the location of the erosion has been determined. The results showed that when the permeability of the dead man becomes worse，the circulation of molten iron is aggravated，resulting in erosion of brick in the root of dead man. However，the floating height of dead man varies correspondingly with the practical production parameters. An example was given，which verified the location of the erosion of the blast furnace hearth within the 1-3 m range below the tap hole. The key to prolong the service lies in the stable raw materials supply，operation and establish of mechanism，a system to check monitoring the floating height of dead man and residual thickness of carbon brick.

Key words： blast furnace hearth residual thickness of carbon brick dead man long campaign life

Received: 23 January 2018 Published: 11 October 2018

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TF512

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	Articles by authors
	MA Hong-xiu
	ZHANG Jian-liang
	JIAO Ke-xin
	CHANG Zhi-yu
	WANG Yi-jie
	ZHENG Peng-chao

Cite this article:

MA Hong-xiu,ZHANG Jian-liang,JIAO Ke-xin等. Analysis of erosion characteristics and causes of blast furnace hearth[J]. Iron and Steel, 2018, 53(9): 14-19.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20180033 OR http://www.chinamet.cn/Jweb_gt/EN/Y2018/V53/I9/14

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