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2021 | OriginalPaper | Chapter

3. The Structure of Stock Column and the Control of Gas Distribution

Author : Yuncai Liu

Published in: The Operation of Contemporary Blast Furnaces

Publisher: Springer Singapore

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Abstract

Blast furnace is a countercurrent reactor. The gas rises from the lower part and passes through the charge layers. It interacts with the burden descending from the upper part to complete the smelting process of heating, melting, reducing and carburizing. Smooth burden descend and reasonable gas distribution are essential for stable blast furnace operation. The function of the burden distribution is to change the distribution of gas flow and affect the shape of the cohesive zone through different charging methods. The method of burden distribution with two bells is monotonous. The possibility to change the distribution of burden is limited, and it is quite inconvenient to regulate the gas flow. However, the bell-less top burden distribution method is so flexible that burden can be distributed to any position of the throat. Therefore, it is relatively convenient to regulate the distribution of the gas flow in blast furnace.

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Footnotes
1
as the author requested, the calculation program of landing point of burden distribution was compiled and explained by Professor Qi Chenglin and Dr. Li Fengguang of University of Science and Technology Beijing.
 
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Metadata
Title
The Structure of Stock Column and the Control of Gas Distribution
Author
Yuncai Liu
Copyright Year
2021
Publisher
Springer Singapore
Book
The Operation of Contemporary Blast Furnaces

Print ISBN: 978-981-15-7073-5

Electronic ISBN: 978-981-15-7074-2

Copyright Year: 2021

DOI
https://doi.org/10.1007/978-981-15-7074-2_3

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