|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||9th International Symposium on High Temperature Metallurgical Processing
||D-14: Research on the Long Life Blowpipe Liner of BF Air Supply Apparatus
||Li Zhu, Keng Wu, Wenlong Zhan, Guoyou Liu, Kai Wang, Yulin Guo
|On-Site Speaker (Planned)
The blowpipe of BF air supply apparatus is always the weakest link of the hot blast pipe system. The local air leak, high surface temperature and short service life of blowpipe were ubiquity in the air supply apparatus after being used for a period of time. The average service life of No.2 BF tuyere blowpipe with conventional liner in Shouqin Company was 250 days at the initial stage of blowing-in. By improving the lining materials, the tuyere blowpipe adopted the molten silica-based composite refractory as liner so that the thermal conductivity decreased from 0.812 W/ (mĚ℃) to 0.381 W/ (mĚ℃). Finally, the average service life of the tuyere blowpipe increased up to 702 days, which was twice times more than before, providing guarantee for BF steady production.