Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Jeong-Whan Han"'
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 69, Iss No 1, Pp 151-156 (2024)
Sintered ore used as blast furnace burden materials is produced by mixing iron ore, coke, and limestone, then burning the coke and sintering the iron ore with the combustion heat. Among the coke charged, A particle size of 0.25 mm or less has an insi
Externí odkaz:
https://doaj.org/article/d901887b26f848a6b5a298fcd1581890
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 64, Iss No 2, Pp 495-500 (2019)
In general, uniform mixing of particles is desirable in the process of particle handling. However, during the charging of sinter feed and upper ore, size segregation must be induced to prevent heat imbalance, ensure bed permeability, and prevent the
Externí odkaz:
https://doaj.org/article/5142599f23f44d72b1255f0d7e2be51d
Publikováno v:
Metals and Materials International. 28:1517-1524
Pre-reduction of manganese ore has a direct impact on energy savings for the subsequent smelting process. To this end, knowledge of the kinetics of the pre-reduction of manganese ore is useful in controlling the process parameters for the subsequent
Publikováno v:
Korean Journal of Metals and Materials. 59:14-20
In ironmaking, the optimal size of the iron ore charged into a blast furnace is generally 10-30 mm. Oversized ores, which have a smaller reaction surface area, are crushed, while undersized ores, which decrease permeability, undergo a sizing process
A Study on the Supersonic Jet Nozzle to Improve of the Operating Efficiency of the Converter Process
Publikováno v:
Korean Journal of Metals and Materials. 58:550-559
Recently, various worldwide studies have been conducted to improve converter operation by modifying the lance nozzle. In this study, a numerical analysis of the lance nozzle was conducted to improve the dephosphorization efficiency, and to reduce blo
Autor:
Kang-Min Kim, Jeong Whan Han
Publikováno v:
Korean Journal of Metals and Materials. 58:369-374
New technologies need to be developed in the ironmaking process to reduce carbon dioxide emissions. To achieve this, in recent years steelmakers have been working to reduce coke usage by increasing thermal energy efficiency. However, it is very diffi
Publikováno v:
Metals and Materials International. 26:1218-1225
The sinter–briquette complex firing process which is an effective technology for utilization of low grade ultra-fine ore is a method for charging sinter feed mixed with briquette made of ultra-fine ore. To uniformly fire briquettes using the excess
Publikováno v:
Journal of Hazardous Materials. 342:51-57
This paper reports the recycling of flexible printed circuit board (FPCB) waste through carbonization of polyimide by dual pyrolysis processes. The organic matter was recovered as pyrolyzed oil at low temperatures, while valuable metals and polyimide
Publikováno v:
Korean Journal of Metals and Materials. 55:515-522
Publikováno v:
Korean Journal of Metals and Materials. 54:846-854