Microscopic mechanism of lining erosion in a blast furnace

QI Cheng-lin; ZHANG Jian-liang; JIANG Hai-bing; KONG De-wen; YANG Yang; WANG Xiao-liu

doi:10.13374/j.issn1001-053x.2010.09.021

Volume 32 Issue 9

Aug. 2021

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Article Navigation > Chinese Journal of Engineering > 2010 > 32(9): 1226-1231

QI Cheng-lin, ZHANG Jian-liang, JIANG Hai-bing, KONG De-wen, YANG Yang, WANG Xiao-liu. Microscopic mechanism of lining erosion in a blast furnace[J]. Chinese Journal of Engineering, 2010, 32(9): 1226-1231. doi: 10.13374/j.issn1001-053x.2010.09.021

Citation:

QI Cheng-lin, ZHANG Jian-liang, JIANG Hai-bing, KONG De-wen, YANG Yang, WANG Xiao-liu. Microscopic mechanism of lining erosion in a blast furnace[J]. Chinese Journal of Engineering, 2010, 32(9): 1226-1231. doi: 10.13374/j.issn1001-053x.2010.09.021

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Microscopic mechanism of lining erosion in a blast furnace

doi: 10.13374/j.issn1001-053x.2010.09.021

1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Xinyu Iron&Steel Group Co. Ltd., Xinyu 338000, China

Received Date: 2009-12-03

Abstract

Abstract

With samples acquired from different temperature zones in a blast furnace (BF),the erosion mechanism of linings was investigated in thermodynamics and micro-mechanism by thermodynamic calculations,SEM and EDS.The results indicate that bricks are penetrable for the steam of K,but Na penetrates in bricks by airflow mixed with Na compounds.Zn has a larger effect on lining erosion in middle and low temperature zones but much less in a high temperature zone.
- blast furnaces,
- linings,
- alkali metals,
- erosion,
- mechanism