Influence of blast volume on hot blast distribution rule around the hearth circumferentially
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Bing-nan Liu
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Hai-feng Li
Abstract
Based on Ansteel’s new No. 5 blast furnace (BF), the distribution rule of hot blast on the circumference of blast furnace hearth under different blast volume was studied. The results show that, the blast volume distribution rule is similar under different blast volumes, that is, there are four regions with large blast volumes at the 0°, 90°, 180° and 270° positions of the bustle pipe. Under different blast volumes, the difference of blast volume near 90° and 270° is close to 0, which has a minor effect on the uneven distribution of gas flow and circumferential asymmetry of packed bed in BF. However, the blast volume of the tuyere near the 180° is always larger than that of the tuyere near 0°, and with the increase of blast volume from 4600 to 5000 nm3/min, this difference keeps increasing, 0.69 to 0.95 nm3/min. This phenomenon will lead to an increase in the coke consumption on the 180° side, and cause a higher descending velocity of coke than that on the 0° side, this difference increases from 0.39 to 0.54 m, which could further result in the unevenness of blast volume distribution and the circumferential asymmetry of packed bed in BF. Comparing with the actual production in Ansteel, the results obtained in this work are in good agreement with the phenomenon in practical production.
Funding source: the Fundamental Research Funds for the Central Universities
Award Identifier / Grant number: N2225022
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Author contributions: Software, SHI Ben-hui; validation, LU Jin-lin; investigation, CHE Yu-man; writing—original draft preparation, LIU Bing-nan; writing—review and editing, LI Hai-feng. All authors have read and agreed to the published version of the manuscript.
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Research funding: This research was funded by the Fundamental Research Funds for the Central Universities, grant number N2225022. The APC was funded by Northeastern University.
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Data availability statement: Not applicable.
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Conflict of interest statement: The authors declare no conflict of interest.
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Articles in the same Issue
- Frontmatter
- Articles
- Numerical study of post-combustion characteristic in a smelting reduction furnace
- Experimental study and modeling of denitrification in an MBBR reactor
- Experimental study on the influence of fuel-rich and fuel-lean coal/airflow ratio on aerodynamic characteristics of a 300MWe foster wheeler down-fired boiler
- Effect of La on the catalytic performance of mesoporous Ni/γ-Al2O3 catalysts for dry reforming of methane
- Adsorption of paratoluic acid on MIL-53 (Al) metal-organic framework, and response surface methodology optimization
- An intelligent dynamic setting control framework for a multimode impurity removal process
- Optimization of microwave-assisted synthesis process for water-soluble ammonium polyphosphate from urea phosphate and urea
- Oxidation of NMST to NMSBA catalyzed by Co/Mn/Br together with porous carbon made from coconut shell with acetic acid as an activator
- Influence of blast volume on hot blast distribution rule around the hearth circumferentially
