| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Engineering -- From Ideas to Practice: An EPD Symposium in Honor of Jiann-Yang Hwang
|
| Presentation Title |
Production and High Ratio Application of Iron Ore Pellets in Shougang |
| Author(s) |
Gele Qing, Minge Zhao, Gang An, Kai Wang, xiaojiang Wu, zhixing Zhao |
| On-Site Speaker (Planned) |
Gele Qing |
| Abstract Scope |
In order to reduce the fuel rate of blast furnace and promote green development, Shougang Jingtang Steel company has built two straight grate indurating machines with productivity of 8 million tons of iron ore pellets. In this paper, the production technologies of self-fluxed pellets with hydrated lime were studied and successfully produced on the indurating machine. Hydrated lime has a good binder property and decrease the amount of bentonite and obtain low silica pellet. The basicity of pellet is 1.15 and SiO2 content is 2.0%. The low silica self-fluxed pellets were used in the three large blast furnaces with 5500m3 in Shougang Jingtang, the proportion of pellets in burden was increased from 28% to 55%, slag rate of blast furance is decreased from 280kg/tHM to 215kg/tHM, the fuel rate decreased from 500kg/tHM to 480kg/tHM. |
| Proceedings Inclusion? |
Planned: |