Theoretical and practical research on relationship between blast air condition and hearth activity in large blast furnace

Bing DAI; Hong-ming Long; Yi-long Ji; Jia-ting Rao; Yun-Cai Liu

doi:10.1051/metal/2020007

journal article Jan 01, 2020

Theoretical and practical research on relationship between blast air condition and hearth activity in large blast furnace

Bing DAI

Hong-ming Long

Yi-long Ji Jia-ting Rao Yun-Cai Liu

Metallurgical Research & Technology Vol. 117 No. 1 pp. 113 · EDP Sciences

View at Publisher Save 10.1051/metal/2020007

Abstract

From the results calculated by theoretical derivations, it was found that the characteristics of tuyere raceway determined by the operation condition for blast air played a critical effect on the heart activity. The speed and kinetic energy of blast air should be proportional to the volume of blast furnace (BF), and the comprehensive optimization of air volume and tuyere which should vary with the quality of raw materials was essential. The calculation methods of air volume ratio and coefficient for different BFs were put forward. Moreover, the details on hearth activity recovery of a 4747 m3 blast furnace in China were elaborated. Based on the extensive experience in blast furnace production, the various phenomena used to judge air speed and kinetic energy whether reasonable were discussed. In summary, hearth activity was closely related to the characteristics of BF raceway and reasonable air speed and kinetic energy could effectively improve the activity.

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Cited By

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Study of the Effect of Design Parameters on the Thermal Processes in a Blast Furnace Tuyere Using the ANSYS Software

S. D. Saifullaev, S. V. Albul · 2021

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Metrics

9

Citations

17

References

Details

Published: Jan 01, 2020
Vol/Issue: 117(1)
Pages: 113
License: View

Authors

School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan, Anhui 243002, China; Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Anhui University of Technology, Ministry of Education, Ma’anshan 243002, China

Cite This Article

Bing DAI, Hong-ming Long, Yi-long Ji, et al. (2020). Theoretical and practical research on relationship between blast air condition and hearth activity in large blast furnace. Metallurgical Research & Technology, 117(1), 113. https://doi.org/10.1051/metal/2020007

Theoretical and practical research on relationship between blast air condition and hearth activity in large blast furnace

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