Risk Factors of Vapor Explosion of Molten Slag in Slag Yard for Steelworks

Young-Jae Cho, Woojung Park, Hong-Sik Yun, Hyoung-Uk Yoon and Sungyool Bong
Additional contact information
Young-Jae Cho: Disaster Prevention Center, POSCO, Republic of Korea
Hong-Sik Yun: Department of Civil & Environmental Engineering, Worcester Polytechnic Institute (WPI), United States
Hyoung-Uk Yoon: Interdisciplinary Program in Crisis, Disaster and Risk Management, Sungkyunkwan University, Republic of Korea
Sungyool Bong: Department of Mechanical Engineering, Worcester Polytechnic Institute (WPI), United States

International Journal of Environmental Sciences & Natural Resources, 2020, vol. 24, issue 5, 167-175

Abstract: The risk of vapor explosions has always existed in steelworks that deal with a large amount of high-temperature molten slag. Previous studies on vapor explosions caused by the direct contact of high-temperature molten slag with cooling water were mainly focused on nuclear power plants, whereas there is hardly any research on vapor explosions concerning molten slag in steelworks. Therefore, there is a necessity to understand the causes of vapor explosions occurring during the work process at slag yards. This study analyzed risk factors of potential vapor explosions during the work process at slag yards in steelworks and conducted a small-scale experiment based on field conditions. The experiment found the risk factors that cause vapor explosions at the cooling stage and loading stages of the process and found that spontaneous vapor explosions occurred depending on the temperature of cooling water for molten slag and the contained salinity. Thus, it was confirmed that the significant causes of vapor explosions in the steel industry were the salinity of the cooling water concentrated by seawater desalination and high-water temperature at 50°C caused by the circulation structure of cooling water.

Keywords: earth and environment journals; environment journals; open access environment journals; peer reviewed environmental journals; open access; juniper publishers; ournal of Environmental Sciences; juniper publishers journals; juniper publishers reivew (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://juniperpublishers.com/ijesnr/pdf/IJESNR.MS.ID.556148.pdf (application/pdf)
https://juniperpublishers.com/ijesnr/IJESNR.MS.ID.556148.php (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:adp:ijesnr:v:24:y:2020:i:5:p:167-175

DOI: 10.19080/IJESNR.2020.24.556148

Access Statistics for this article

International Journal of Environmental Sciences & Natural Resources is currently edited by Sophia Mathis

More articles in International Journal of Environmental Sciences & Natural Resources from Juniper Publishers Inc.
Bibliographic data for series maintained by Robert Thomas ().