|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.19 [2012] >
IJEMS Vol.19(3) [June 2012] >
| Title: | Numerical evaluation of a submerged entry nozzle for continuous casting of steel |
| Authors: | Real-Ramirez, C A
Miranda-Tello, R
Hoyos-Reyes, L
Reyes, M
Gonzalez-Trejo, J I |
| Keywords: | Continuous casting process
Clogging
Submerged entry nozzle
Hydrodynamics
Numerical analysis |
| Issue Date: | Jun-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | In the continuous casting machines
of steel, the clogging of the submerged entry nozzle (SEN) is a common problem
that affects the quality of a product. The gradual increase in the clogging volume
produces inadequate and uneven flow patterns inside the nozzle and the mold.
The pool-type SEN is the most often used in continuous casting of steel. This
work proposes a modification based on a uniform flow at the SEN exit ports and
evaluates numerically the performance at non steady state of this nozzle. The
aim of the modification is to extend the lifetime of the SEN, by implementing
an active self-cleaning process. In the proposed SEN, the static bottom section
of the pool is replaced with a sliding device of conical shape at the top. The
performance of the proposed device is evaluated by means of computational fluid
dynamics (CFD) simulations. This work shows that the hydrodynamic behavior
inside the nozzle, and the vertical motion of the device allows to control the
release of the inclusions into the mold.
|
| Page(s): | 179-188 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.19(3) [June 2012]
|
|
