Structural optimization and design of purging plug for improving its service performance
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In: Journal of iron and steel research international, Vol. 29.2022, No. September, 2021, p. 628-635.
Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - Structural optimization and design of purging plug for improving its service performance
AU - Tan, Fang guan
AU - Jin, Sheng li
AU - He, Zhu
AU - Li, Ya wei
N1 - Funding Information: This work was financially supported by the National Natural Science Foundation of China (Grant Nos. 51974211 and 12072245) and the Special Project of Central Government for Local Science and Technology Development of Hubei Province (Grant Nos. 2019ZYYD003 and 2019ZYYD076). Publisher Copyright: © 2021, China Iron and Steel Research Institute Group.
PY - 2021
Y1 - 2021
N2 - Purging plug with slits is widely used in the secondary refining process, and its service life determines the downtime and production efficiency. To achieve a good performance in service life, optimizing the geometric structure of the slit, which can alleviate the stress concentration around the slit, was employed using the finite plate model. Furthermore, the performance of the purging plugs with different shapes of slits in the refining effect was investigated by conducting the water model experiments. The numerical simulation results showed that the appropriate shapes of slits could alleviate the stress concentration phenomena. In the water model experiment, the mixing time of the purging plug with circular slits is lesser than that of the purging plug with rectangular slits when the gas flow is less than 6.02 L/min. Compared with the rectangular slits, the circular slits are detrimental to smaller and well-distributed bubbles. Thus, the inclusion removal rate of the purging plug with circular slits is approximately 10% larger than that of the purging plug with the rectangular slits.
AB - Purging plug with slits is widely used in the secondary refining process, and its service life determines the downtime and production efficiency. To achieve a good performance in service life, optimizing the geometric structure of the slit, which can alleviate the stress concentration around the slit, was employed using the finite plate model. Furthermore, the performance of the purging plugs with different shapes of slits in the refining effect was investigated by conducting the water model experiments. The numerical simulation results showed that the appropriate shapes of slits could alleviate the stress concentration phenomena. In the water model experiment, the mixing time of the purging plug with circular slits is lesser than that of the purging plug with rectangular slits when the gas flow is less than 6.02 L/min. Compared with the rectangular slits, the circular slits are detrimental to smaller and well-distributed bubbles. Thus, the inclusion removal rate of the purging plug with circular slits is approximately 10% larger than that of the purging plug with the rectangular slits.
KW - Inclusion removal
KW - Ladle metallurgy
KW - Mixing time
KW - Purging plug
KW - Stress concentration
KW - Water model experiment
UR - http://www.scopus.com/inward/record.url?scp=85115233813&partnerID=8YFLogxK
U2 - 10.1007/s42243-021-00647-6
DO - 10.1007/s42243-021-00647-6
M3 - Article
AN - SCOPUS:85115233813
VL - 29.2022
SP - 628
EP - 635
JO - Journal of iron and steel research international
JF - Journal of iron and steel research international
SN - 1006-706X
IS - September
ER -