TY - JOUR
T1 - Numerical simulation of liquid slag flow in liquid slag storage device from energy saving of steel industry
AU - Ma, Liwei
AU - Wang, Shuzhong
AU - Zhao, Jun
AU - Zhang, Xi
AU - Zhang, Zhongqing
AU - Jing, Zefeng
AU - Meng, Haiyu
N1 - Publisher Copyright:
© 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of ICAE2018 - The 10th International Conference on Applied Energy.
PY - 2019
Y1 - 2019
N2 - The temperature of liquid blast furnace slag discharged from ironmaking blast furnaces is above 1400°C, which contains extremely abundant waste heat resources. The discharged blast furnace slag is rapidly reduced in temperature due to lack of timely insulation, which limits the development of continuous recovery technology for residual heat of blast furnace slag such as dry granulation. In view of this technical bottleneck problem, the liquid slag storage device designed with reference to liquid metal slag devices (such as ladle and tundish) in the metallurgical industry could be used for the storage and temperature control of liquid blast furnace slag. Compared with ladle, tundish and other liquid metal storage devices, slag packs had the characteristics of large capacity, complex structure and complicated flow process. The VOF model was used to simulate the influence of the inner diameter of the outlet on the slag discharge flow, speed, and temperature in the process of free liquid slag storage device outflow and the effect of different slag flow rates on the outflow temperature in the process of quantitative outflow process. The research results had important guiding significance for structural design and material selection of cache devices.
AB - The temperature of liquid blast furnace slag discharged from ironmaking blast furnaces is above 1400°C, which contains extremely abundant waste heat resources. The discharged blast furnace slag is rapidly reduced in temperature due to lack of timely insulation, which limits the development of continuous recovery technology for residual heat of blast furnace slag such as dry granulation. In view of this technical bottleneck problem, the liquid slag storage device designed with reference to liquid metal slag devices (such as ladle and tundish) in the metallurgical industry could be used for the storage and temperature control of liquid blast furnace slag. Compared with ladle, tundish and other liquid metal storage devices, slag packs had the characteristics of large capacity, complex structure and complicated flow process. The VOF model was used to simulate the influence of the inner diameter of the outlet on the slag discharge flow, speed, and temperature in the process of free liquid slag storage device outflow and the effect of different slag flow rates on the outflow temperature in the process of quantitative outflow process. The research results had important guiding significance for structural design and material selection of cache devices.
KW - Liquid slag storage
KW - Slag centrifugal granulation
KW - Slag discharge temperature
KW - Slag flow
KW - VOF model
UR - https://www.scopus.com/pages/publications/85063904932
U2 - 10.1016/j.egypro.2019.01.728
DO - 10.1016/j.egypro.2019.01.728
M3 - 会议文章
AN - SCOPUS:85063904932
SN - 1876-6102
VL - 158
SP - 4735
EP - 4740
JO - Energy Procedia
JF - Energy Procedia
T2 - 10th International Conference on Applied Energy, ICAE 2018
Y2 - 22 August 2018 through 25 August 2018
ER -