ISSN 2594-5300
38º Seminário de Aciaria - Internacional — vol. 38, num.38 (2007)
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Abstract
Since its development in Germany in the 1950s, RH plants - or vacuum circulation plants - have been applied in the steel industry to improve the quality of steel and to increase the range of the steel products. The RH process has undergone continuous development over the years, including the application of a top lance to promote forced decarburization, chemical heating, refractory heating and skull removal. Also, to increase the productivity of RH plants and to reduce the total treatment time, the diameter of the RH vessel and snorkel have been enlarged, the argon flow rate increased and the evacuation time of the vacuum system reduced. In this paper a number of developments in vacuum-degassing technology is presented. In particular, the design of RH plants as twin-station treatment facilities—allowing even more than 40 heats to be processed per day—and the use of quick-exchange vessels to support high productivity rates are discussed.
Since its development in Germany in the 1950s, RH plants - or vacuum circulation plants - have been applied in the steel industry to improve the quality of steel and to increase the range of the steel products. The RH process has undergone continuous development over the years, including the application of a top lance to promote forced decarburization, chemical heating, refractory heating and skull removal. Also, to increase the productivity of RH plants and to reduce the total treatment time, the diameter of the RH vessel and snorkel have been enlarged, the argon flow rate increased and the evacuation time of the vacuum system reduced. In this paper a number of developments in vacuum-degassing technology is presented. In particular, the design of RH plants as twin-station treatment facilities—allowing even more than 40 heats to be processed per day—and the use of quick-exchange vessels to support high productivity rates are discussed.
Keywords
High productivity; Twin station; Quick exchange vessel.
High productivity; Twin station; Quick exchange vessel.
How to refer
Schrade, Christian;
Huellen, Markus;
Zulhan, Zulfiadi.
NEW CONCEPT FOR HIGH-PRODUCTIVITY RH PLANTS
,
p. 808-819.
In: 38º Seminário de Aciaria - Internacional,
Belo Horizonte,
2007.
ISSN: 2594-5300
, DOI 10.5151/2594-5300-0084
